/* altairz80_cpu.c: MITS Altair CPU (8080 and Z80) | |
Copyright (c) 2002-2006, Peter Schorn | |
Permission is hereby granted, free of charge, to any person obtaining a | |
copy of this software and associated documentation files (the "Software"), | |
to deal in the Software without restriction, including without limitation | |
the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
and/or sell copies of the Software, and to permit persons to whom the | |
Software is furnished to do so, subject to the following conditions: | |
The above copyright notice and this permission notice shall be included in | |
all copies or substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
PETER SCHORN BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | |
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
Except as contained in this notice, the name of Peter Schorn shall not | |
be used in advertising or otherwise to promote the sale, use or other dealings | |
in this Software without prior written authorization from Peter Schorn. | |
Based on work by Charles E Owen (c) 1997 | |
Code for Z80 CPU from Frank D. Cringle ((c) 1995 under GNU license) | |
*/ | |
#include "altairz80_defs.h" | |
#if !defined (_WIN32) | |
#include <unistd.h> | |
#endif | |
#define PCQ_SIZE 64 /* must be 2**n */ | |
#define PCQ_SIZE_LOG2 6 /* log2 of PCQ_SIZE */ | |
#define PCQ_MASK (PCQ_SIZE - 1) | |
#define PCQ_ENTRY(PC) pcq[pcq_p = (pcq_p - 1) & PCQ_MASK] = PC | |
/* simulator stop codes */ | |
#define STOP_HALT 0 /* HALT */ | |
#define STOP_IBKPT 1 /* breakpoint (program counter) */ | |
#define STOP_MEM 2 /* breakpoint (memory access) */ | |
#define STOP_OPCODE 3 /* unknown 8080 or Z80 instruction */ | |
#define FLAG_C 1 | |
#define FLAG_N 2 | |
#define FLAG_P 4 | |
#define FLAG_H 16 | |
#define FLAG_Z 64 | |
#define FLAG_S 128 | |
#define SETFLAG(f,c) AF = (c) ? AF | FLAG_ ## f : AF & ~FLAG_ ## f | |
#define TSTFLAG(f) ((AF & FLAG_ ## f) != 0) | |
#define ldig(x) ((x) & 0xf) | |
#define hdig(x) (((x) >> 4) & 0xf) | |
#define lreg(x) ((x) & 0xff) | |
#define hreg(x) (((x) >> 8) & 0xff) | |
#define Setlreg(x, v) x = (((x) & 0xff00) | ((v) & 0xff)) | |
#define Sethreg(x, v) x = (((x) & 0xff) | (((v) & 0xff) << 8)) | |
#define parity(x) parityTable[(x) & 0xff] | |
/* SetPV and SetPV2 are used to provide correct parity flag semantics for the 8080 in cases | |
where the Z80 uses the overflow flag | |
*/ | |
#define SetPVS(s) ((cpu_unit.flags & UNIT_CHIP) ? (((cbits >> 6) ^ (cbits >> 5)) & 4) : (parity(s))) | |
#define SetPV (SetPVS(sum)) | |
#define SetPV2(x) ((cpu_unit.flags & UNIT_CHIP) ? (((temp == (x)) << 2)) : (parity(temp))) | |
/* checkCPU8080 must be invoked whenever a Z80 only instruction is executed | |
In case a Z80 instruction is executed on an 8080 the following two cases exist: | |
1) Trapping is enabled: execution stops | |
2) Trapping is not enabled: decoding continues with the next byte | |
*/ | |
#define checkCPU8080 \ | |
if ((cpu_unit.flags & UNIT_CHIP) == 0) { \ | |
if (cpu_unit.flags & UNIT_OPSTOP) { \ | |
reason = STOP_OPCODE; \ | |
goto end_decode; \ | |
} \ | |
else { \ | |
sim_brk_pend[0] = FALSE; \ | |
continue; \ | |
} \ | |
} | |
/* checkCPUZ80 must be invoked whenever a non Z80 instruction is executed */ | |
#define checkCPUZ80 \ | |
if (cpu_unit.flags & UNIT_OPSTOP) { \ | |
reason = STOP_OPCODE; \ | |
goto end_decode; \ | |
} | |
#define POP(x) { \ | |
register uint32 y = RAM_pp(SP); \ | |
x = y + (RAM_pp(SP) << 8); \ | |
} | |
#define JPC(cond) { \ | |
tStates += 10; \ | |
if (cond) { \ | |
PCQ_ENTRY(PC - 1); \ | |
PC = GetWORD(PC); \ | |
} \ | |
else { \ | |
PC += 2; \ | |
} \ | |
} | |
#define CALLC(cond) { \ | |
if (cond) { \ | |
register uint32 adrr = GetWORD(PC); \ | |
CheckBreakWord(SP - 2); \ | |
PUSH(PC + 2); \ | |
PCQ_ENTRY(PC - 1); \ | |
PC = adrr; \ | |
tStates += 17; \ | |
} \ | |
else { \ | |
sim_brk_pend[0] = FALSE; \ | |
PC += 2; \ | |
tStates += 10; \ | |
} \ | |
} | |
extern int32 sim_int_char; | |
extern int32 sio0s (const int32 port, const int32 io, const int32 data); | |
extern int32 sio0d (const int32 port, const int32 io, const int32 data); | |
extern int32 sio1s (const int32 port, const int32 io, const int32 data); | |
extern int32 sio1d (const int32 port, const int32 io, const int32 data); | |
extern int32 dsk10 (const int32 port, const int32 io, const int32 data); | |
extern int32 dsk11 (const int32 port, const int32 io, const int32 data); | |
extern int32 dsk12 (const int32 port, const int32 io, const int32 data); | |
extern int32 nulldev (const int32 port, const int32 io, const int32 data); | |
extern int32 hdsk_io (const int32 port, const int32 io, const int32 data); | |
extern int32 simh_dev (const int32 port, const int32 io, const int32 data); | |
extern int32 sr_dev (const int32 port, const int32 io, const int32 data); | |
extern char messageBuffer[]; | |
extern void printMessage(void); | |
/* function prototypes */ | |
t_stat cpu_ex(t_value *vptr, t_addr addr, UNIT *uptr, int32 sw); | |
t_stat cpu_dep(t_value val, t_addr addr, UNIT *uptr, int32 sw); | |
t_stat cpu_reset(DEVICE *dptr); | |
t_stat sim_load(FILE *fileref, char *cptr, char *fnam, int32 flag); | |
void PutBYTEBasic(const uint32 Addr, const uint32 Bank, const uint32 Value); | |
t_stat sim_instr(void); | |
int32 install_bootrom(void); | |
void protect(const int32 l, const int32 h); | |
uint8 GetBYTEWrapper(const uint32 Addr); | |
void PutBYTEWrapper(const uint32 Addr, const uint32 Value); | |
int32 getBankSelect(void); | |
void setBankSelect(const int32 b); | |
uint32 getCommon(void); | |
static void PutBYTEForced(uint32 Addr, const uint32 Value); | |
static int32 addressIsInROM(const uint32 Addr); | |
static int32 addressExists(const uint32 Addr); | |
static void printROMMessage(const uint32 cntROM); | |
static void warnUnsuccessfulWriteAttempt(const uint32 Addr); | |
static uint8 warnUnsuccessfulReadAttempt(const uint32 Addr); | |
static t_stat cpu_set_rom (UNIT *uptr, int32 value, char *cptr, void *desc); | |
static t_stat cpu_set_norom (UNIT *uptr, int32 value, char *cptr, void *desc); | |
static t_stat cpu_set_altairrom (UNIT *uptr, int32 value, char *cptr, void *desc); | |
static t_stat cpu_set_warnrom (UNIT *uptr, int32 value, char *cptr, void *desc); | |
static t_stat cpu_set_banked (UNIT *uptr, int32 value, char *cptr, void *desc); | |
static t_stat cpu_set_nonbanked (UNIT *uptr, int32 value, char *cptr, void *desc); | |
static t_stat cpu_set_size (UNIT *uptr, int32 value, char *cptr, void *desc); | |
static void prepareMemoryAccessMessage(t_addr loc); | |
static void checkROMBoundaries(void); | |
static void reset_memory(void); | |
static uint32 in(const uint32 Port); | |
static void out(const uint32 Port, const uint32 Value); | |
static void PutBYTE(register uint32 Addr, register uint32 Value); | |
static void PutWORD(register uint32 a, register uint32 v); | |
static t_bool sim_brk_lookup (const t_addr bloc, const int32 btyp); | |
static void resetCell(const int32 address, const int32 bank); | |
/* CPU data structures | |
cpu_dev CPU device descriptor | |
cpu_unit CPU unit descriptor | |
cpu_reg CPU register list | |
cpu_mod CPU modifiers list | |
*/ | |
UNIT cpu_unit = { | |
UDATA (NULL, UNIT_FIX + UNIT_BINK + UNIT_ROM + UNIT_ALTAIRROM, MAXMEMSIZE) | |
}; | |
int32 PCX; /* external view of PC */ | |
int32 saved_PC = 0; /* program counter */ | |
static int32 AF_S; /* AF register */ | |
static int32 BC_S; /* BC register */ | |
static int32 DE_S; /* DE register */ | |
static int32 HL_S; /* HL register */ | |
static int32 IX_S; /* IX register */ | |
static int32 IY_S; /* IY register */ | |
static int32 SP_S; /* SP register */ | |
static int32 AF1_S; /* alternate AF register */ | |
static int32 BC1_S; /* alternate BC register */ | |
static int32 DE1_S; /* alternate DE register */ | |
static int32 HL1_S; /* alternate HL register */ | |
static int32 IFF_S; /* interrupt Flip Flop */ | |
static int32 IR_S; /* interrupt (upper)/refresh (lower) register */ | |
int32 SR = 0; /* switch register */ | |
static int32 bankSelect = 0; /* determines selected memory bank */ | |
static uint32 common = 0xc000; /* addresses >= 'common' are in common memory */ | |
static uint32 ROMLow = defaultROMLow; /* lowest address of ROM */ | |
static uint32 ROMHigh = defaultROMHigh; /* highest address of ROM */ | |
static uint32 previousCapacity = 0; /* safe for previous memory capacity */ | |
static uint32 clockFrequency = 0; /* in kHz, 0 means as fast as possible */ | |
static uint32 sliceLength = 10; /* length of time-slice for CPU speed */ | |
/* adjustment in milliseconds */ | |
static uint32 executedTStates = 0; /* executed t-states */ | |
static uint16 pcq[PCQ_SIZE] = { /* PC queue */ | |
0 | |
}; | |
static int32 pcq_p = 0; /* PC queue ptr */ | |
static REG *pcq_r = NULL; /* PC queue reg ptr */ | |
REG cpu_reg[] = { | |
{ HRDATA (PC, saved_PC, 16) }, | |
{ HRDATA (AF, AF_S, 16) }, | |
{ HRDATA (BC, BC_S, 16) }, | |
{ HRDATA (DE, DE_S, 16) }, | |
{ HRDATA (HL, HL_S, 16) }, | |
{ HRDATA (IX, IX_S, 16) }, | |
{ HRDATA (IY, IY_S, 16) }, | |
{ HRDATA (SP, SP_S, 16) }, | |
{ HRDATA (AF1, AF1_S, 16) }, | |
{ HRDATA (BC1, BC1_S, 16) }, | |
{ HRDATA (DE1, DE1_S, 16) }, | |
{ HRDATA (HL1, HL1_S, 16) }, | |
{ GRDATA (IFF, IFF_S, 2, 2, 0) }, | |
{ FLDATA (IR, IR_S, 8) }, | |
{ FLDATA (Z80, cpu_unit.flags, UNIT_V_CHIP), REG_HRO }, | |
{ FLDATA (OPSTOP, cpu_unit.flags, UNIT_V_OPSTOP), REG_HRO }, | |
{ HRDATA (SR, SR, 8) }, | |
{ HRDATA (BANK, bankSelect, MAXBANKSLOG2) }, | |
{ HRDATA (COMMON, common, 16) }, | |
{ HRDATA (ROMLOW, ROMLow, 16) }, | |
{ HRDATA (ROMHIGH, ROMHigh, 16) }, | |
{ DRDATA (CLOCK, clockFrequency, 32) }, | |
{ DRDATA (SLICE, sliceLength, 16) }, | |
{ DRDATA (TSTATES, executedTStates, 32), REG_RO }, | |
{ HRDATA (CAPACITY, cpu_unit.capac, 32), REG_RO }, | |
{ HRDATA (PREVCAP, previousCapacity, 32), REG_RO }, | |
{ BRDATA (PCQ, pcq, 16, 16, PCQ_SIZE), REG_RO + REG_CIRC }, | |
{ DRDATA (PCQP, pcq_p, PCQ_SIZE_LOG2), REG_HRO }, | |
{ HRDATA (WRU, sim_int_char, 8) }, | |
{ NULL } | |
}; | |
static MTAB cpu_mod[] = { | |
{ UNIT_CHIP, UNIT_CHIP, "Z80", "Z80", NULL }, | |
{ UNIT_CHIP, 0, "8080", "8080", NULL }, | |
{ UNIT_OPSTOP, UNIT_OPSTOP, "ITRAP", "ITRAP", NULL }, | |
{ UNIT_OPSTOP, 0, "NOITRAP", "NOITRAP", NULL }, | |
{ UNIT_BANKED, UNIT_BANKED, "BANKED", "BANKED", &cpu_set_banked }, | |
{ UNIT_BANKED, 0, "NONBANKED", "NONBANKED", &cpu_set_nonbanked }, | |
{ UNIT_ROM, UNIT_ROM, "ROM", "ROM", &cpu_set_rom }, | |
{ UNIT_ROM, 0, "NOROM", "NOROM", &cpu_set_norom }, | |
{ UNIT_ALTAIRROM, UNIT_ALTAIRROM, "ALTAIRROM", "ALTAIRROM", &cpu_set_altairrom }, | |
{ UNIT_ALTAIRROM, 0, "NOALTAIRROM", "NOALTAIRROM", NULL }, | |
{ UNIT_WARNROM, UNIT_WARNROM, "WARNROM", "WARNROM", &cpu_set_warnrom }, | |
{ UNIT_WARNROM, 0, "NOWARNROM", "NOWARNROM", NULL }, | |
{ UNIT_MSIZE, 4 * KB, NULL, "4K", &cpu_set_size }, | |
{ UNIT_MSIZE, 8 * KB, NULL, "8K", &cpu_set_size }, | |
{ UNIT_MSIZE, 12 * KB, NULL, "12K", &cpu_set_size }, | |
{ UNIT_MSIZE, 16 * KB, NULL, "16K", &cpu_set_size }, | |
{ UNIT_MSIZE, 20 * KB, NULL, "20K", &cpu_set_size }, | |
{ UNIT_MSIZE, 24 * KB, NULL, "24K", &cpu_set_size }, | |
{ UNIT_MSIZE, 28 * KB, NULL, "28K", &cpu_set_size }, | |
{ UNIT_MSIZE, 32 * KB, NULL, "32K", &cpu_set_size }, | |
{ UNIT_MSIZE, 36 * KB, NULL, "36K", &cpu_set_size }, | |
{ UNIT_MSIZE, 40 * KB, NULL, "40K", &cpu_set_size }, | |
{ UNIT_MSIZE, 44 * KB, NULL, "44K", &cpu_set_size }, | |
{ UNIT_MSIZE, 48 * KB, NULL, "48K", &cpu_set_size }, | |
{ UNIT_MSIZE, 52 * KB, NULL, "52K", &cpu_set_size }, | |
{ UNIT_MSIZE, 56 * KB, NULL, "56K", &cpu_set_size }, | |
{ UNIT_MSIZE, 60 * KB, NULL, "60K", &cpu_set_size }, | |
{ UNIT_MSIZE, 64 * KB, NULL, "64K", &cpu_set_size }, | |
{ 0 } | |
}; | |
DEVICE cpu_dev = { | |
"CPU", &cpu_unit, cpu_reg, cpu_mod, | |
1, 16, 16, 1, 16, 8, | |
&cpu_ex, &cpu_dep, &cpu_reset, | |
NULL, NULL, NULL, | |
NULL, 0, 0, | |
NULL, NULL, NULL | |
}; | |
/* data structure for IN/OUT instructions */ | |
struct idev { | |
int32 (*routine)(const int32, const int32, const int32); | |
}; | |
/* This is the I/O configuration table. There are 255 possible | |
device addresses, if a device is plugged to a port it's routine | |
address is here, 'nulldev' means no device is available | |
*/ | |
static const struct idev dev_table[256] = { | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 00 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 04 */ | |
{&dsk10}, {&dsk11}, {&dsk12}, {&nulldev}, /* 08 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 0C */ | |
{&sio0s}, {&sio0d}, {&sio1s}, {&sio1d}, /* 10 */ | |
{&sio0s}, {&sio0d}, {&sio0s}, {&sio0d}, /* 14 */ | |
{&sio0s}, {&sio0d}, {&nulldev}, {&nulldev}, /* 18 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 1C */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 20 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 24 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 28 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 2C */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 30 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 34 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 38 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 3C */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 40 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 44 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 48 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 4C */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 50 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 54 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 58 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 5C */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 60 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 64 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 68 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 6C */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 70 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 74 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 78 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 7C */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 80 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 84 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 88 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 8C */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 90 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 94 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 98 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* 9C */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* A0 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* A4 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* A8 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* AC */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* B0 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* B4 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* B8 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* BC */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* C0 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* C4 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* C8 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* CC */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* D0 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* D4 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* D8 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* DC */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* D0 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* E4 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* E8 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* EC */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* F0 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* F4 */ | |
{&nulldev}, {&nulldev}, {&nulldev}, {&nulldev}, /* F8 */ | |
{&nulldev}, {&hdsk_io}, {&simh_dev}, {&sr_dev} /* FC */ | |
}; | |
static void out(const uint32 Port, const uint32 Value) { | |
dev_table[Port].routine(Port, 1, Value); | |
} | |
static uint32 in(const uint32 Port) { | |
return dev_table[Port].routine(Port, 0, 0); | |
} | |
/* the following tables precompute some common subexpressions | |
parityTable[i] 0..255 (number of 1's in i is odd) ? 0 : 4 | |
incTable[i] 0..256! (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0) << 4) | |
decTable[i] 0..255 (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0xf) << 4) | 2 | |
cbitsTable[i] 0..511 (i & 0x10) | ((i >> 8) & 1) | |
cbitsDup8Table[i] 0..511 (i & 0x10) | ((i >> 8) & 1) | ((i & 0xff) << 8) | (i & 0xa8) | | |
(((i & 0xff) == 0) << 6) | |
cbitsDup16Table[i] 0..511 (i & 0x10) | ((i >> 8) & 1) | (i & 0x28) | |
cbits2Table[i] 0..511 (i & 0x10) | ((i >> 8) & 1) | 2 | |
rrcaTable[i] 0..255 ((i & 1) << 15) | ((i >> 1) << 8) | ((i >> 1) & 0x28) | (i & 1) | |
rraTable[i] 0..255 ((i >> 1) << 8) | ((i >> 1) & 0x28) | (i & 1) | |
addTable[i] 0..511 ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6) | |
subTable[i] 0..255 ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6) | 2 | |
andTable[i] 0..255 (i << 8) | (i & 0xa8) | ((i == 0) << 6) | 0x10 | parityTable[i] | |
xororTable[i] 0..255 (i << 8) | (i & 0xa8) | ((i == 0) << 6) | parityTable[i] | |
rotateShiftTable[i] 0..255 (i & 0xa8) | (((i & 0xff) == 0) << 6) | parityTable[i & 0xff] | |
incZ80Table[i] 0..256! (i & 0xa8) | (((i & 0xff) == 0) << 6) | | |
(((i & 0xf) == 0) << 4) | ((i == 0x80) << 2) | |
decZ80Table[i] 0..255 (i & 0xa8) | (((i & 0xff) == 0) << 6) | | |
(((i & 0xf) == 0xf) << 4) | ((i == 0x7f) << 2) | 2 | |
cbitsZ80Table[i] 0..511 (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | |
cbitsZ80DupTable[i] 0..511 (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | | |
((i >> 8) & 1) | (i & 0xa8) | |
cbits2Z80Table[i] 0..511 (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | 2 | |
cbits2Z80DupTable[i] 0..511 (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | 2 | | |
(i & 0xa8) | |
negTable[i] 0..255 (((i & 0x0f) != 0) << 4) | ((i == 0x80) << 2) | 2 | (i != 0) | |
rrdrldTable[i] 0..255 (i << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6) | parityTable[i] | |
cpTable[i] 0..255 (i & 0x80) | (((i & 0xff) == 0) << 6) | |
*/ | |
/* parityTable[i] = (number of 1's in i is odd) ? 0 : 4, i = 0..255 */ | |
static const uint8 parityTable[256] = { | |
4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4, | |
0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0, | |
0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0, | |
4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4, | |
0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0, | |
4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4, | |
4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4, | |
0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0, | |
0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0, | |
4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4, | |
4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4, | |
0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0, | |
4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4, | |
0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0, | |
0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0, | |
4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4, | |
}; | |
/* incTable[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0) << 4), i = 0..256 */ | |
static const uint8 incTable[257] = { | |
80, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
16, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136, | |
144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136, | |
176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, | |
176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, | |
144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136, | |
144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136, | |
176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, | |
176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, 80 | |
}; | |
/* decTable[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0xf) << 4) | 2, i = 0..255 */ | |
static const uint8 decTable[256] = { | |
66, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 26, | |
2, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 26, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58, | |
2, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 26, | |
2, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 26, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58, | |
130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154, | |
130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154, | |
162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186, | |
162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186, | |
130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154, | |
130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154, | |
162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186, | |
162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186, | |
}; | |
/* cbitsTable[i] = (i & 0x10) | ((i >> 8) & 1), i = 0..511 */ | |
static const uint8 cbitsTable[512] = { | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
}; | |
/* cbitsDup8Table[i] = (i & 0x10) | ((i >> 8) & 1) | ((i & 0xff) << 8) | (i & 0xa8) | | |
(((i & 0xff) == 0) << 6), i = 0..511 */ | |
static const uint16 cbitsDup8Table[512] = { | |
0x0040,0x0100,0x0200,0x0300,0x0400,0x0500,0x0600,0x0700, | |
0x0808,0x0908,0x0a08,0x0b08,0x0c08,0x0d08,0x0e08,0x0f08, | |
0x1010,0x1110,0x1210,0x1310,0x1410,0x1510,0x1610,0x1710, | |
0x1818,0x1918,0x1a18,0x1b18,0x1c18,0x1d18,0x1e18,0x1f18, | |
0x2020,0x2120,0x2220,0x2320,0x2420,0x2520,0x2620,0x2720, | |
0x2828,0x2928,0x2a28,0x2b28,0x2c28,0x2d28,0x2e28,0x2f28, | |
0x3030,0x3130,0x3230,0x3330,0x3430,0x3530,0x3630,0x3730, | |
0x3838,0x3938,0x3a38,0x3b38,0x3c38,0x3d38,0x3e38,0x3f38, | |
0x4000,0x4100,0x4200,0x4300,0x4400,0x4500,0x4600,0x4700, | |
0x4808,0x4908,0x4a08,0x4b08,0x4c08,0x4d08,0x4e08,0x4f08, | |
0x5010,0x5110,0x5210,0x5310,0x5410,0x5510,0x5610,0x5710, | |
0x5818,0x5918,0x5a18,0x5b18,0x5c18,0x5d18,0x5e18,0x5f18, | |
0x6020,0x6120,0x6220,0x6320,0x6420,0x6520,0x6620,0x6720, | |
0x6828,0x6928,0x6a28,0x6b28,0x6c28,0x6d28,0x6e28,0x6f28, | |
0x7030,0x7130,0x7230,0x7330,0x7430,0x7530,0x7630,0x7730, | |
0x7838,0x7938,0x7a38,0x7b38,0x7c38,0x7d38,0x7e38,0x7f38, | |
0x8080,0x8180,0x8280,0x8380,0x8480,0x8580,0x8680,0x8780, | |
0x8888,0x8988,0x8a88,0x8b88,0x8c88,0x8d88,0x8e88,0x8f88, | |
0x9090,0x9190,0x9290,0x9390,0x9490,0x9590,0x9690,0x9790, | |
0x9898,0x9998,0x9a98,0x9b98,0x9c98,0x9d98,0x9e98,0x9f98, | |
0xa0a0,0xa1a0,0xa2a0,0xa3a0,0xa4a0,0xa5a0,0xa6a0,0xa7a0, | |
0xa8a8,0xa9a8,0xaaa8,0xaba8,0xaca8,0xada8,0xaea8,0xafa8, | |
0xb0b0,0xb1b0,0xb2b0,0xb3b0,0xb4b0,0xb5b0,0xb6b0,0xb7b0, | |
0xb8b8,0xb9b8,0xbab8,0xbbb8,0xbcb8,0xbdb8,0xbeb8,0xbfb8, | |
0xc080,0xc180,0xc280,0xc380,0xc480,0xc580,0xc680,0xc780, | |
0xc888,0xc988,0xca88,0xcb88,0xcc88,0xcd88,0xce88,0xcf88, | |
0xd090,0xd190,0xd290,0xd390,0xd490,0xd590,0xd690,0xd790, | |
0xd898,0xd998,0xda98,0xdb98,0xdc98,0xdd98,0xde98,0xdf98, | |
0xe0a0,0xe1a0,0xe2a0,0xe3a0,0xe4a0,0xe5a0,0xe6a0,0xe7a0, | |
0xe8a8,0xe9a8,0xeaa8,0xeba8,0xeca8,0xeda8,0xeea8,0xefa8, | |
0xf0b0,0xf1b0,0xf2b0,0xf3b0,0xf4b0,0xf5b0,0xf6b0,0xf7b0, | |
0xf8b8,0xf9b8,0xfab8,0xfbb8,0xfcb8,0xfdb8,0xfeb8,0xffb8, | |
0x0041,0x0101,0x0201,0x0301,0x0401,0x0501,0x0601,0x0701, | |
0x0809,0x0909,0x0a09,0x0b09,0x0c09,0x0d09,0x0e09,0x0f09, | |
0x1011,0x1111,0x1211,0x1311,0x1411,0x1511,0x1611,0x1711, | |
0x1819,0x1919,0x1a19,0x1b19,0x1c19,0x1d19,0x1e19,0x1f19, | |
0x2021,0x2121,0x2221,0x2321,0x2421,0x2521,0x2621,0x2721, | |
0x2829,0x2929,0x2a29,0x2b29,0x2c29,0x2d29,0x2e29,0x2f29, | |
0x3031,0x3131,0x3231,0x3331,0x3431,0x3531,0x3631,0x3731, | |
0x3839,0x3939,0x3a39,0x3b39,0x3c39,0x3d39,0x3e39,0x3f39, | |
0x4001,0x4101,0x4201,0x4301,0x4401,0x4501,0x4601,0x4701, | |
0x4809,0x4909,0x4a09,0x4b09,0x4c09,0x4d09,0x4e09,0x4f09, | |
0x5011,0x5111,0x5211,0x5311,0x5411,0x5511,0x5611,0x5711, | |
0x5819,0x5919,0x5a19,0x5b19,0x5c19,0x5d19,0x5e19,0x5f19, | |
0x6021,0x6121,0x6221,0x6321,0x6421,0x6521,0x6621,0x6721, | |
0x6829,0x6929,0x6a29,0x6b29,0x6c29,0x6d29,0x6e29,0x6f29, | |
0x7031,0x7131,0x7231,0x7331,0x7431,0x7531,0x7631,0x7731, | |
0x7839,0x7939,0x7a39,0x7b39,0x7c39,0x7d39,0x7e39,0x7f39, | |
0x8081,0x8181,0x8281,0x8381,0x8481,0x8581,0x8681,0x8781, | |
0x8889,0x8989,0x8a89,0x8b89,0x8c89,0x8d89,0x8e89,0x8f89, | |
0x9091,0x9191,0x9291,0x9391,0x9491,0x9591,0x9691,0x9791, | |
0x9899,0x9999,0x9a99,0x9b99,0x9c99,0x9d99,0x9e99,0x9f99, | |
0xa0a1,0xa1a1,0xa2a1,0xa3a1,0xa4a1,0xa5a1,0xa6a1,0xa7a1, | |
0xa8a9,0xa9a9,0xaaa9,0xaba9,0xaca9,0xada9,0xaea9,0xafa9, | |
0xb0b1,0xb1b1,0xb2b1,0xb3b1,0xb4b1,0xb5b1,0xb6b1,0xb7b1, | |
0xb8b9,0xb9b9,0xbab9,0xbbb9,0xbcb9,0xbdb9,0xbeb9,0xbfb9, | |
0xc081,0xc181,0xc281,0xc381,0xc481,0xc581,0xc681,0xc781, | |
0xc889,0xc989,0xca89,0xcb89,0xcc89,0xcd89,0xce89,0xcf89, | |
0xd091,0xd191,0xd291,0xd391,0xd491,0xd591,0xd691,0xd791, | |
0xd899,0xd999,0xda99,0xdb99,0xdc99,0xdd99,0xde99,0xdf99, | |
0xe0a1,0xe1a1,0xe2a1,0xe3a1,0xe4a1,0xe5a1,0xe6a1,0xe7a1, | |
0xe8a9,0xe9a9,0xeaa9,0xeba9,0xeca9,0xeda9,0xeea9,0xefa9, | |
0xf0b1,0xf1b1,0xf2b1,0xf3b1,0xf4b1,0xf5b1,0xf6b1,0xf7b1, | |
0xf8b9,0xf9b9,0xfab9,0xfbb9,0xfcb9,0xfdb9,0xfeb9,0xffb9, | |
}; | |
/* cbitsDup16Table[i] = (i & 0x10) | ((i >> 8) & 1) | (i & 0x28), i = 0..511 */ | |
static const uint8 cbitsDup16Table[512] = { | |
0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16,16,16,16,16,16,16,16,24,24,24,24,24,24,24,24, | |
32,32,32,32,32,32,32,32,40,40,40,40,40,40,40,40, | |
48,48,48,48,48,48,48,48,56,56,56,56,56,56,56,56, | |
0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16,16,16,16,16,16,16,16,24,24,24,24,24,24,24,24, | |
32,32,32,32,32,32,32,32,40,40,40,40,40,40,40,40, | |
48,48,48,48,48,48,48,48,56,56,56,56,56,56,56,56, | |
0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16,16,16,16,16,16,16,16,24,24,24,24,24,24,24,24, | |
32,32,32,32,32,32,32,32,40,40,40,40,40,40,40,40, | |
48,48,48,48,48,48,48,48,56,56,56,56,56,56,56,56, | |
0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16,16,16,16,16,16,16,16,24,24,24,24,24,24,24,24, | |
32,32,32,32,32,32,32,32,40,40,40,40,40,40,40,40, | |
48,48,48,48,48,48,48,48,56,56,56,56,56,56,56,56, | |
1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, | |
17,17,17,17,17,17,17,17,25,25,25,25,25,25,25,25, | |
33,33,33,33,33,33,33,33,41,41,41,41,41,41,41,41, | |
49,49,49,49,49,49,49,49,57,57,57,57,57,57,57,57, | |
1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, | |
17,17,17,17,17,17,17,17,25,25,25,25,25,25,25,25, | |
33,33,33,33,33,33,33,33,41,41,41,41,41,41,41,41, | |
49,49,49,49,49,49,49,49,57,57,57,57,57,57,57,57, | |
1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, | |
17,17,17,17,17,17,17,17,25,25,25,25,25,25,25,25, | |
33,33,33,33,33,33,33,33,41,41,41,41,41,41,41,41, | |
49,49,49,49,49,49,49,49,57,57,57,57,57,57,57,57, | |
1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, | |
17,17,17,17,17,17,17,17,25,25,25,25,25,25,25,25, | |
33,33,33,33,33,33,33,33,41,41,41,41,41,41,41,41, | |
49,49,49,49,49,49,49,49,57,57,57,57,57,57,57,57, | |
}; | |
/* cbits2Table[i] = (i & 0x10) | ((i >> 8) & 1) | 2, i = 0..511 */ | |
static const uint8 cbits2Table[512] = { | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
}; | |
/* rrcaTable[i] = ((i & 1) << 15) | ((i >> 1) << 8) | ((i >> 1) & 0x28) | (i & 1), i = 0..255 */ | |
static const uint16 rrcaTable[256] = { | |
0x0000,0x8001,0x0100,0x8101,0x0200,0x8201,0x0300,0x8301, | |
0x0400,0x8401,0x0500,0x8501,0x0600,0x8601,0x0700,0x8701, | |
0x0808,0x8809,0x0908,0x8909,0x0a08,0x8a09,0x0b08,0x8b09, | |
0x0c08,0x8c09,0x0d08,0x8d09,0x0e08,0x8e09,0x0f08,0x8f09, | |
0x1000,0x9001,0x1100,0x9101,0x1200,0x9201,0x1300,0x9301, | |
0x1400,0x9401,0x1500,0x9501,0x1600,0x9601,0x1700,0x9701, | |
0x1808,0x9809,0x1908,0x9909,0x1a08,0x9a09,0x1b08,0x9b09, | |
0x1c08,0x9c09,0x1d08,0x9d09,0x1e08,0x9e09,0x1f08,0x9f09, | |
0x2020,0xa021,0x2120,0xa121,0x2220,0xa221,0x2320,0xa321, | |
0x2420,0xa421,0x2520,0xa521,0x2620,0xa621,0x2720,0xa721, | |
0x2828,0xa829,0x2928,0xa929,0x2a28,0xaa29,0x2b28,0xab29, | |
0x2c28,0xac29,0x2d28,0xad29,0x2e28,0xae29,0x2f28,0xaf29, | |
0x3020,0xb021,0x3120,0xb121,0x3220,0xb221,0x3320,0xb321, | |
0x3420,0xb421,0x3520,0xb521,0x3620,0xb621,0x3720,0xb721, | |
0x3828,0xb829,0x3928,0xb929,0x3a28,0xba29,0x3b28,0xbb29, | |
0x3c28,0xbc29,0x3d28,0xbd29,0x3e28,0xbe29,0x3f28,0xbf29, | |
0x4000,0xc001,0x4100,0xc101,0x4200,0xc201,0x4300,0xc301, | |
0x4400,0xc401,0x4500,0xc501,0x4600,0xc601,0x4700,0xc701, | |
0x4808,0xc809,0x4908,0xc909,0x4a08,0xca09,0x4b08,0xcb09, | |
0x4c08,0xcc09,0x4d08,0xcd09,0x4e08,0xce09,0x4f08,0xcf09, | |
0x5000,0xd001,0x5100,0xd101,0x5200,0xd201,0x5300,0xd301, | |
0x5400,0xd401,0x5500,0xd501,0x5600,0xd601,0x5700,0xd701, | |
0x5808,0xd809,0x5908,0xd909,0x5a08,0xda09,0x5b08,0xdb09, | |
0x5c08,0xdc09,0x5d08,0xdd09,0x5e08,0xde09,0x5f08,0xdf09, | |
0x6020,0xe021,0x6120,0xe121,0x6220,0xe221,0x6320,0xe321, | |
0x6420,0xe421,0x6520,0xe521,0x6620,0xe621,0x6720,0xe721, | |
0x6828,0xe829,0x6928,0xe929,0x6a28,0xea29,0x6b28,0xeb29, | |
0x6c28,0xec29,0x6d28,0xed29,0x6e28,0xee29,0x6f28,0xef29, | |
0x7020,0xf021,0x7120,0xf121,0x7220,0xf221,0x7320,0xf321, | |
0x7420,0xf421,0x7520,0xf521,0x7620,0xf621,0x7720,0xf721, | |
0x7828,0xf829,0x7928,0xf929,0x7a28,0xfa29,0x7b28,0xfb29, | |
0x7c28,0xfc29,0x7d28,0xfd29,0x7e28,0xfe29,0x7f28,0xff29, | |
}; | |
/* rraTable[i] = ((i >> 1) << 8) | ((i >> 1) & 0x28) | (i & 1), i = 0..255 */ | |
static const uint16 rraTable[256] = { | |
0x0000,0x0001,0x0100,0x0101,0x0200,0x0201,0x0300,0x0301, | |
0x0400,0x0401,0x0500,0x0501,0x0600,0x0601,0x0700,0x0701, | |
0x0808,0x0809,0x0908,0x0909,0x0a08,0x0a09,0x0b08,0x0b09, | |
0x0c08,0x0c09,0x0d08,0x0d09,0x0e08,0x0e09,0x0f08,0x0f09, | |
0x1000,0x1001,0x1100,0x1101,0x1200,0x1201,0x1300,0x1301, | |
0x1400,0x1401,0x1500,0x1501,0x1600,0x1601,0x1700,0x1701, | |
0x1808,0x1809,0x1908,0x1909,0x1a08,0x1a09,0x1b08,0x1b09, | |
0x1c08,0x1c09,0x1d08,0x1d09,0x1e08,0x1e09,0x1f08,0x1f09, | |
0x2020,0x2021,0x2120,0x2121,0x2220,0x2221,0x2320,0x2321, | |
0x2420,0x2421,0x2520,0x2521,0x2620,0x2621,0x2720,0x2721, | |
0x2828,0x2829,0x2928,0x2929,0x2a28,0x2a29,0x2b28,0x2b29, | |
0x2c28,0x2c29,0x2d28,0x2d29,0x2e28,0x2e29,0x2f28,0x2f29, | |
0x3020,0x3021,0x3120,0x3121,0x3220,0x3221,0x3320,0x3321, | |
0x3420,0x3421,0x3520,0x3521,0x3620,0x3621,0x3720,0x3721, | |
0x3828,0x3829,0x3928,0x3929,0x3a28,0x3a29,0x3b28,0x3b29, | |
0x3c28,0x3c29,0x3d28,0x3d29,0x3e28,0x3e29,0x3f28,0x3f29, | |
0x4000,0x4001,0x4100,0x4101,0x4200,0x4201,0x4300,0x4301, | |
0x4400,0x4401,0x4500,0x4501,0x4600,0x4601,0x4700,0x4701, | |
0x4808,0x4809,0x4908,0x4909,0x4a08,0x4a09,0x4b08,0x4b09, | |
0x4c08,0x4c09,0x4d08,0x4d09,0x4e08,0x4e09,0x4f08,0x4f09, | |
0x5000,0x5001,0x5100,0x5101,0x5200,0x5201,0x5300,0x5301, | |
0x5400,0x5401,0x5500,0x5501,0x5600,0x5601,0x5700,0x5701, | |
0x5808,0x5809,0x5908,0x5909,0x5a08,0x5a09,0x5b08,0x5b09, | |
0x5c08,0x5c09,0x5d08,0x5d09,0x5e08,0x5e09,0x5f08,0x5f09, | |
0x6020,0x6021,0x6120,0x6121,0x6220,0x6221,0x6320,0x6321, | |
0x6420,0x6421,0x6520,0x6521,0x6620,0x6621,0x6720,0x6721, | |
0x6828,0x6829,0x6928,0x6929,0x6a28,0x6a29,0x6b28,0x6b29, | |
0x6c28,0x6c29,0x6d28,0x6d29,0x6e28,0x6e29,0x6f28,0x6f29, | |
0x7020,0x7021,0x7120,0x7121,0x7220,0x7221,0x7320,0x7321, | |
0x7420,0x7421,0x7520,0x7521,0x7620,0x7621,0x7720,0x7721, | |
0x7828,0x7829,0x7928,0x7929,0x7a28,0x7a29,0x7b28,0x7b29, | |
0x7c28,0x7c29,0x7d28,0x7d29,0x7e28,0x7e29,0x7f28,0x7f29, | |
}; | |
/* addTable[i] = ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6), i = 0..511 */ | |
static const uint16 addTable[512] = { | |
0x0040,0x0100,0x0200,0x0300,0x0400,0x0500,0x0600,0x0700, | |
0x0808,0x0908,0x0a08,0x0b08,0x0c08,0x0d08,0x0e08,0x0f08, | |
0x1000,0x1100,0x1200,0x1300,0x1400,0x1500,0x1600,0x1700, | |
0x1808,0x1908,0x1a08,0x1b08,0x1c08,0x1d08,0x1e08,0x1f08, | |
0x2020,0x2120,0x2220,0x2320,0x2420,0x2520,0x2620,0x2720, | |
0x2828,0x2928,0x2a28,0x2b28,0x2c28,0x2d28,0x2e28,0x2f28, | |
0x3020,0x3120,0x3220,0x3320,0x3420,0x3520,0x3620,0x3720, | |
0x3828,0x3928,0x3a28,0x3b28,0x3c28,0x3d28,0x3e28,0x3f28, | |
0x4000,0x4100,0x4200,0x4300,0x4400,0x4500,0x4600,0x4700, | |
0x4808,0x4908,0x4a08,0x4b08,0x4c08,0x4d08,0x4e08,0x4f08, | |
0x5000,0x5100,0x5200,0x5300,0x5400,0x5500,0x5600,0x5700, | |
0x5808,0x5908,0x5a08,0x5b08,0x5c08,0x5d08,0x5e08,0x5f08, | |
0x6020,0x6120,0x6220,0x6320,0x6420,0x6520,0x6620,0x6720, | |
0x6828,0x6928,0x6a28,0x6b28,0x6c28,0x6d28,0x6e28,0x6f28, | |
0x7020,0x7120,0x7220,0x7320,0x7420,0x7520,0x7620,0x7720, | |
0x7828,0x7928,0x7a28,0x7b28,0x7c28,0x7d28,0x7e28,0x7f28, | |
0x8080,0x8180,0x8280,0x8380,0x8480,0x8580,0x8680,0x8780, | |
0x8888,0x8988,0x8a88,0x8b88,0x8c88,0x8d88,0x8e88,0x8f88, | |
0x9080,0x9180,0x9280,0x9380,0x9480,0x9580,0x9680,0x9780, | |
0x9888,0x9988,0x9a88,0x9b88,0x9c88,0x9d88,0x9e88,0x9f88, | |
0xa0a0,0xa1a0,0xa2a0,0xa3a0,0xa4a0,0xa5a0,0xa6a0,0xa7a0, | |
0xa8a8,0xa9a8,0xaaa8,0xaba8,0xaca8,0xada8,0xaea8,0xafa8, | |
0xb0a0,0xb1a0,0xb2a0,0xb3a0,0xb4a0,0xb5a0,0xb6a0,0xb7a0, | |
0xb8a8,0xb9a8,0xbaa8,0xbba8,0xbca8,0xbda8,0xbea8,0xbfa8, | |
0xc080,0xc180,0xc280,0xc380,0xc480,0xc580,0xc680,0xc780, | |
0xc888,0xc988,0xca88,0xcb88,0xcc88,0xcd88,0xce88,0xcf88, | |
0xd080,0xd180,0xd280,0xd380,0xd480,0xd580,0xd680,0xd780, | |
0xd888,0xd988,0xda88,0xdb88,0xdc88,0xdd88,0xde88,0xdf88, | |
0xe0a0,0xe1a0,0xe2a0,0xe3a0,0xe4a0,0xe5a0,0xe6a0,0xe7a0, | |
0xe8a8,0xe9a8,0xeaa8,0xeba8,0xeca8,0xeda8,0xeea8,0xefa8, | |
0xf0a0,0xf1a0,0xf2a0,0xf3a0,0xf4a0,0xf5a0,0xf6a0,0xf7a0, | |
0xf8a8,0xf9a8,0xfaa8,0xfba8,0xfca8,0xfda8,0xfea8,0xffa8, | |
0x0040,0x0100,0x0200,0x0300,0x0400,0x0500,0x0600,0x0700, | |
0x0808,0x0908,0x0a08,0x0b08,0x0c08,0x0d08,0x0e08,0x0f08, | |
0x1000,0x1100,0x1200,0x1300,0x1400,0x1500,0x1600,0x1700, | |
0x1808,0x1908,0x1a08,0x1b08,0x1c08,0x1d08,0x1e08,0x1f08, | |
0x2020,0x2120,0x2220,0x2320,0x2420,0x2520,0x2620,0x2720, | |
0x2828,0x2928,0x2a28,0x2b28,0x2c28,0x2d28,0x2e28,0x2f28, | |
0x3020,0x3120,0x3220,0x3320,0x3420,0x3520,0x3620,0x3720, | |
0x3828,0x3928,0x3a28,0x3b28,0x3c28,0x3d28,0x3e28,0x3f28, | |
0x4000,0x4100,0x4200,0x4300,0x4400,0x4500,0x4600,0x4700, | |
0x4808,0x4908,0x4a08,0x4b08,0x4c08,0x4d08,0x4e08,0x4f08, | |
0x5000,0x5100,0x5200,0x5300,0x5400,0x5500,0x5600,0x5700, | |
0x5808,0x5908,0x5a08,0x5b08,0x5c08,0x5d08,0x5e08,0x5f08, | |
0x6020,0x6120,0x6220,0x6320,0x6420,0x6520,0x6620,0x6720, | |
0x6828,0x6928,0x6a28,0x6b28,0x6c28,0x6d28,0x6e28,0x6f28, | |
0x7020,0x7120,0x7220,0x7320,0x7420,0x7520,0x7620,0x7720, | |
0x7828,0x7928,0x7a28,0x7b28,0x7c28,0x7d28,0x7e28,0x7f28, | |
0x8080,0x8180,0x8280,0x8380,0x8480,0x8580,0x8680,0x8780, | |
0x8888,0x8988,0x8a88,0x8b88,0x8c88,0x8d88,0x8e88,0x8f88, | |
0x9080,0x9180,0x9280,0x9380,0x9480,0x9580,0x9680,0x9780, | |
0x9888,0x9988,0x9a88,0x9b88,0x9c88,0x9d88,0x9e88,0x9f88, | |
0xa0a0,0xa1a0,0xa2a0,0xa3a0,0xa4a0,0xa5a0,0xa6a0,0xa7a0, | |
0xa8a8,0xa9a8,0xaaa8,0xaba8,0xaca8,0xada8,0xaea8,0xafa8, | |
0xb0a0,0xb1a0,0xb2a0,0xb3a0,0xb4a0,0xb5a0,0xb6a0,0xb7a0, | |
0xb8a8,0xb9a8,0xbaa8,0xbba8,0xbca8,0xbda8,0xbea8,0xbfa8, | |
0xc080,0xc180,0xc280,0xc380,0xc480,0xc580,0xc680,0xc780, | |
0xc888,0xc988,0xca88,0xcb88,0xcc88,0xcd88,0xce88,0xcf88, | |
0xd080,0xd180,0xd280,0xd380,0xd480,0xd580,0xd680,0xd780, | |
0xd888,0xd988,0xda88,0xdb88,0xdc88,0xdd88,0xde88,0xdf88, | |
0xe0a0,0xe1a0,0xe2a0,0xe3a0,0xe4a0,0xe5a0,0xe6a0,0xe7a0, | |
0xe8a8,0xe9a8,0xeaa8,0xeba8,0xeca8,0xeda8,0xeea8,0xefa8, | |
0xf0a0,0xf1a0,0xf2a0,0xf3a0,0xf4a0,0xf5a0,0xf6a0,0xf7a0, | |
0xf8a8,0xf9a8,0xfaa8,0xfba8,0xfca8,0xfda8,0xfea8,0xffa8, | |
}; | |
/* subTable[i] = ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6) | 2, i = 0..255 */ | |
static const uint16 subTable[256] = { | |
0x0042,0x0102,0x0202,0x0302,0x0402,0x0502,0x0602,0x0702, | |
0x080a,0x090a,0x0a0a,0x0b0a,0x0c0a,0x0d0a,0x0e0a,0x0f0a, | |
0x1002,0x1102,0x1202,0x1302,0x1402,0x1502,0x1602,0x1702, | |
0x180a,0x190a,0x1a0a,0x1b0a,0x1c0a,0x1d0a,0x1e0a,0x1f0a, | |
0x2022,0x2122,0x2222,0x2322,0x2422,0x2522,0x2622,0x2722, | |
0x282a,0x292a,0x2a2a,0x2b2a,0x2c2a,0x2d2a,0x2e2a,0x2f2a, | |
0x3022,0x3122,0x3222,0x3322,0x3422,0x3522,0x3622,0x3722, | |
0x382a,0x392a,0x3a2a,0x3b2a,0x3c2a,0x3d2a,0x3e2a,0x3f2a, | |
0x4002,0x4102,0x4202,0x4302,0x4402,0x4502,0x4602,0x4702, | |
0x480a,0x490a,0x4a0a,0x4b0a,0x4c0a,0x4d0a,0x4e0a,0x4f0a, | |
0x5002,0x5102,0x5202,0x5302,0x5402,0x5502,0x5602,0x5702, | |
0x580a,0x590a,0x5a0a,0x5b0a,0x5c0a,0x5d0a,0x5e0a,0x5f0a, | |
0x6022,0x6122,0x6222,0x6322,0x6422,0x6522,0x6622,0x6722, | |
0x682a,0x692a,0x6a2a,0x6b2a,0x6c2a,0x6d2a,0x6e2a,0x6f2a, | |
0x7022,0x7122,0x7222,0x7322,0x7422,0x7522,0x7622,0x7722, | |
0x782a,0x792a,0x7a2a,0x7b2a,0x7c2a,0x7d2a,0x7e2a,0x7f2a, | |
0x8082,0x8182,0x8282,0x8382,0x8482,0x8582,0x8682,0x8782, | |
0x888a,0x898a,0x8a8a,0x8b8a,0x8c8a,0x8d8a,0x8e8a,0x8f8a, | |
0x9082,0x9182,0x9282,0x9382,0x9482,0x9582,0x9682,0x9782, | |
0x988a,0x998a,0x9a8a,0x9b8a,0x9c8a,0x9d8a,0x9e8a,0x9f8a, | |
0xa0a2,0xa1a2,0xa2a2,0xa3a2,0xa4a2,0xa5a2,0xa6a2,0xa7a2, | |
0xa8aa,0xa9aa,0xaaaa,0xabaa,0xacaa,0xadaa,0xaeaa,0xafaa, | |
0xb0a2,0xb1a2,0xb2a2,0xb3a2,0xb4a2,0xb5a2,0xb6a2,0xb7a2, | |
0xb8aa,0xb9aa,0xbaaa,0xbbaa,0xbcaa,0xbdaa,0xbeaa,0xbfaa, | |
0xc082,0xc182,0xc282,0xc382,0xc482,0xc582,0xc682,0xc782, | |
0xc88a,0xc98a,0xca8a,0xcb8a,0xcc8a,0xcd8a,0xce8a,0xcf8a, | |
0xd082,0xd182,0xd282,0xd382,0xd482,0xd582,0xd682,0xd782, | |
0xd88a,0xd98a,0xda8a,0xdb8a,0xdc8a,0xdd8a,0xde8a,0xdf8a, | |
0xe0a2,0xe1a2,0xe2a2,0xe3a2,0xe4a2,0xe5a2,0xe6a2,0xe7a2, | |
0xe8aa,0xe9aa,0xeaaa,0xebaa,0xecaa,0xedaa,0xeeaa,0xefaa, | |
0xf0a2,0xf1a2,0xf2a2,0xf3a2,0xf4a2,0xf5a2,0xf6a2,0xf7a2, | |
0xf8aa,0xf9aa,0xfaaa,0xfbaa,0xfcaa,0xfdaa,0xfeaa,0xffaa, | |
}; | |
/* andTable[i] = (i << 8) | (i & 0xa8) | ((i == 0) << 6) | 0x10 | parityTable[i], i = 0..255 */ | |
static const uint16 andTable[256] = { | |
0x0054,0x0110,0x0210,0x0314,0x0410,0x0514,0x0614,0x0710, | |
0x0818,0x091c,0x0a1c,0x0b18,0x0c1c,0x0d18,0x0e18,0x0f1c, | |
0x1010,0x1114,0x1214,0x1310,0x1414,0x1510,0x1610,0x1714, | |
0x181c,0x1918,0x1a18,0x1b1c,0x1c18,0x1d1c,0x1e1c,0x1f18, | |
0x2030,0x2134,0x2234,0x2330,0x2434,0x2530,0x2630,0x2734, | |
0x283c,0x2938,0x2a38,0x2b3c,0x2c38,0x2d3c,0x2e3c,0x2f38, | |
0x3034,0x3130,0x3230,0x3334,0x3430,0x3534,0x3634,0x3730, | |
0x3838,0x393c,0x3a3c,0x3b38,0x3c3c,0x3d38,0x3e38,0x3f3c, | |
0x4010,0x4114,0x4214,0x4310,0x4414,0x4510,0x4610,0x4714, | |
0x481c,0x4918,0x4a18,0x4b1c,0x4c18,0x4d1c,0x4e1c,0x4f18, | |
0x5014,0x5110,0x5210,0x5314,0x5410,0x5514,0x5614,0x5710, | |
0x5818,0x591c,0x5a1c,0x5b18,0x5c1c,0x5d18,0x5e18,0x5f1c, | |
0x6034,0x6130,0x6230,0x6334,0x6430,0x6534,0x6634,0x6730, | |
0x6838,0x693c,0x6a3c,0x6b38,0x6c3c,0x6d38,0x6e38,0x6f3c, | |
0x7030,0x7134,0x7234,0x7330,0x7434,0x7530,0x7630,0x7734, | |
0x783c,0x7938,0x7a38,0x7b3c,0x7c38,0x7d3c,0x7e3c,0x7f38, | |
0x8090,0x8194,0x8294,0x8390,0x8494,0x8590,0x8690,0x8794, | |
0x889c,0x8998,0x8a98,0x8b9c,0x8c98,0x8d9c,0x8e9c,0x8f98, | |
0x9094,0x9190,0x9290,0x9394,0x9490,0x9594,0x9694,0x9790, | |
0x9898,0x999c,0x9a9c,0x9b98,0x9c9c,0x9d98,0x9e98,0x9f9c, | |
0xa0b4,0xa1b0,0xa2b0,0xa3b4,0xa4b0,0xa5b4,0xa6b4,0xa7b0, | |
0xa8b8,0xa9bc,0xaabc,0xabb8,0xacbc,0xadb8,0xaeb8,0xafbc, | |
0xb0b0,0xb1b4,0xb2b4,0xb3b0,0xb4b4,0xb5b0,0xb6b0,0xb7b4, | |
0xb8bc,0xb9b8,0xbab8,0xbbbc,0xbcb8,0xbdbc,0xbebc,0xbfb8, | |
0xc094,0xc190,0xc290,0xc394,0xc490,0xc594,0xc694,0xc790, | |
0xc898,0xc99c,0xca9c,0xcb98,0xcc9c,0xcd98,0xce98,0xcf9c, | |
0xd090,0xd194,0xd294,0xd390,0xd494,0xd590,0xd690,0xd794, | |
0xd89c,0xd998,0xda98,0xdb9c,0xdc98,0xdd9c,0xde9c,0xdf98, | |
0xe0b0,0xe1b4,0xe2b4,0xe3b0,0xe4b4,0xe5b0,0xe6b0,0xe7b4, | |
0xe8bc,0xe9b8,0xeab8,0xebbc,0xecb8,0xedbc,0xeebc,0xefb8, | |
0xf0b4,0xf1b0,0xf2b0,0xf3b4,0xf4b0,0xf5b4,0xf6b4,0xf7b0, | |
0xf8b8,0xf9bc,0xfabc,0xfbb8,0xfcbc,0xfdb8,0xfeb8,0xffbc, | |
}; | |
/* xororTable[i] = (i << 8) | (i & 0xa8) | ((i == 0) << 6) | parityTable[i], i = 0..255 */ | |
static const uint16 xororTable[256] = { | |
0x0044,0x0100,0x0200,0x0304,0x0400,0x0504,0x0604,0x0700, | |
0x0808,0x090c,0x0a0c,0x0b08,0x0c0c,0x0d08,0x0e08,0x0f0c, | |
0x1000,0x1104,0x1204,0x1300,0x1404,0x1500,0x1600,0x1704, | |
0x180c,0x1908,0x1a08,0x1b0c,0x1c08,0x1d0c,0x1e0c,0x1f08, | |
0x2020,0x2124,0x2224,0x2320,0x2424,0x2520,0x2620,0x2724, | |
0x282c,0x2928,0x2a28,0x2b2c,0x2c28,0x2d2c,0x2e2c,0x2f28, | |
0x3024,0x3120,0x3220,0x3324,0x3420,0x3524,0x3624,0x3720, | |
0x3828,0x392c,0x3a2c,0x3b28,0x3c2c,0x3d28,0x3e28,0x3f2c, | |
0x4000,0x4104,0x4204,0x4300,0x4404,0x4500,0x4600,0x4704, | |
0x480c,0x4908,0x4a08,0x4b0c,0x4c08,0x4d0c,0x4e0c,0x4f08, | |
0x5004,0x5100,0x5200,0x5304,0x5400,0x5504,0x5604,0x5700, | |
0x5808,0x590c,0x5a0c,0x5b08,0x5c0c,0x5d08,0x5e08,0x5f0c, | |
0x6024,0x6120,0x6220,0x6324,0x6420,0x6524,0x6624,0x6720, | |
0x6828,0x692c,0x6a2c,0x6b28,0x6c2c,0x6d28,0x6e28,0x6f2c, | |
0x7020,0x7124,0x7224,0x7320,0x7424,0x7520,0x7620,0x7724, | |
0x782c,0x7928,0x7a28,0x7b2c,0x7c28,0x7d2c,0x7e2c,0x7f28, | |
0x8080,0x8184,0x8284,0x8380,0x8484,0x8580,0x8680,0x8784, | |
0x888c,0x8988,0x8a88,0x8b8c,0x8c88,0x8d8c,0x8e8c,0x8f88, | |
0x9084,0x9180,0x9280,0x9384,0x9480,0x9584,0x9684,0x9780, | |
0x9888,0x998c,0x9a8c,0x9b88,0x9c8c,0x9d88,0x9e88,0x9f8c, | |
0xa0a4,0xa1a0,0xa2a0,0xa3a4,0xa4a0,0xa5a4,0xa6a4,0xa7a0, | |
0xa8a8,0xa9ac,0xaaac,0xaba8,0xacac,0xada8,0xaea8,0xafac, | |
0xb0a0,0xb1a4,0xb2a4,0xb3a0,0xb4a4,0xb5a0,0xb6a0,0xb7a4, | |
0xb8ac,0xb9a8,0xbaa8,0xbbac,0xbca8,0xbdac,0xbeac,0xbfa8, | |
0xc084,0xc180,0xc280,0xc384,0xc480,0xc584,0xc684,0xc780, | |
0xc888,0xc98c,0xca8c,0xcb88,0xcc8c,0xcd88,0xce88,0xcf8c, | |
0xd080,0xd184,0xd284,0xd380,0xd484,0xd580,0xd680,0xd784, | |
0xd88c,0xd988,0xda88,0xdb8c,0xdc88,0xdd8c,0xde8c,0xdf88, | |
0xe0a0,0xe1a4,0xe2a4,0xe3a0,0xe4a4,0xe5a0,0xe6a0,0xe7a4, | |
0xe8ac,0xe9a8,0xeaa8,0xebac,0xeca8,0xedac,0xeeac,0xefa8, | |
0xf0a4,0xf1a0,0xf2a0,0xf3a4,0xf4a0,0xf5a4,0xf6a4,0xf7a0, | |
0xf8a8,0xf9ac,0xfaac,0xfba8,0xfcac,0xfda8,0xfea8,0xffac, | |
}; | |
/* rotateShiftTable[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | parityTable[i & 0xff], i = 0..255 */ | |
static const uint8 rotateShiftTable[256] = { | |
68, 0, 0, 4, 0, 4, 4, 0, 8, 12, 12, 8, 12, 8, 8, 12, | |
0, 4, 4, 0, 4, 0, 0, 4, 12, 8, 8, 12, 8, 12, 12, 8, | |
32, 36, 36, 32, 36, 32, 32, 36, 44, 40, 40, 44, 40, 44, 44, 40, | |
36, 32, 32, 36, 32, 36, 36, 32, 40, 44, 44, 40, 44, 40, 40, 44, | |
0, 4, 4, 0, 4, 0, 0, 4, 12, 8, 8, 12, 8, 12, 12, 8, | |
4, 0, 0, 4, 0, 4, 4, 0, 8, 12, 12, 8, 12, 8, 8, 12, | |
36, 32, 32, 36, 32, 36, 36, 32, 40, 44, 44, 40, 44, 40, 40, 44, | |
32, 36, 36, 32, 36, 32, 32, 36, 44, 40, 40, 44, 40, 44, 44, 40, | |
128,132,132,128,132,128,128,132,140,136,136,140,136,140,140,136, | |
132,128,128,132,128,132,132,128,136,140,140,136,140,136,136,140, | |
164,160,160,164,160,164,164,160,168,172,172,168,172,168,168,172, | |
160,164,164,160,164,160,160,164,172,168,168,172,168,172,172,168, | |
132,128,128,132,128,132,132,128,136,140,140,136,140,136,136,140, | |
128,132,132,128,132,128,128,132,140,136,136,140,136,140,140,136, | |
160,164,164,160,164,160,160,164,172,168,168,172,168,172,172,168, | |
164,160,160,164,160,164,164,160,168,172,172,168,172,168,168,172, | |
}; | |
/* incZ80Table[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | | |
(((i & 0xf) == 0) << 4) | ((i == 0x80) << 2), i = 0..256 */ | |
static const uint8 incZ80Table[257] = { | |
80, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
16, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
148,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136, | |
144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136, | |
176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, | |
176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, | |
144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136, | |
144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136, | |
176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, | |
176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, 80, | |
}; | |
/* decZ80Table[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | | |
(((i & 0xf) == 0xf) << 4) | ((i == 0x7f) << 2) | 2, i = 0..255 */ | |
static const uint8 decZ80Table[256] = { | |
66, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 26, | |
2, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 26, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58, | |
2, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 26, | |
2, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 26, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 62, | |
130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154, | |
130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154, | |
162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186, | |
162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186, | |
130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154, | |
130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154, | |
162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186, | |
162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186, | |
}; | |
/* cbitsZ80Table[i] = (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1), i = 0..511 */ | |
static const uint8 cbitsZ80Table[512] = { | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16, | |
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20, | |
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20, | |
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20, | |
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20, | |
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21, | |
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21, | |
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21, | |
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17, | |
}; | |
/* cbitsZ80DupTable[i] = (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | | |
((i >> 8) & 1) | (i & 0xa8), i = 0..511 */ | |
static const uint8 cbitsZ80DupTable[512] = { | |
0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16, 16, 16, 16, 16, 16, 16, 16, 24, 24, 24, 24, 24, 24, 24, 24, | |
32, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
48, 48, 48, 48, 48, 48, 48, 48, 56, 56, 56, 56, 56, 56, 56, 56, | |
0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, | |
16, 16, 16, 16, 16, 16, 16, 16, 24, 24, 24, 24, 24, 24, 24, 24, | |
32, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40, | |
48, 48, 48, 48, 48, 48, 48, 48, 56, 56, 56, 56, 56, 56, 56, 56, | |
132,132,132,132,132,132,132,132,140,140,140,140,140,140,140,140, | |
148,148,148,148,148,148,148,148,156,156,156,156,156,156,156,156, | |
164,164,164,164,164,164,164,164,172,172,172,172,172,172,172,172, | |
180,180,180,180,180,180,180,180,188,188,188,188,188,188,188,188, | |
132,132,132,132,132,132,132,132,140,140,140,140,140,140,140,140, | |
148,148,148,148,148,148,148,148,156,156,156,156,156,156,156,156, | |
164,164,164,164,164,164,164,164,172,172,172,172,172,172,172,172, | |
180,180,180,180,180,180,180,180,188,188,188,188,188,188,188,188, | |
5, 5, 5, 5, 5, 5, 5, 5, 13, 13, 13, 13, 13, 13, 13, 13, | |
21, 21, 21, 21, 21, 21, 21, 21, 29, 29, 29, 29, 29, 29, 29, 29, | |
37, 37, 37, 37, 37, 37, 37, 37, 45, 45, 45, 45, 45, 45, 45, 45, | |
53, 53, 53, 53, 53, 53, 53, 53, 61, 61, 61, 61, 61, 61, 61, 61, | |
5, 5, 5, 5, 5, 5, 5, 5, 13, 13, 13, 13, 13, 13, 13, 13, | |
21, 21, 21, 21, 21, 21, 21, 21, 29, 29, 29, 29, 29, 29, 29, 29, | |
37, 37, 37, 37, 37, 37, 37, 37, 45, 45, 45, 45, 45, 45, 45, 45, | |
53, 53, 53, 53, 53, 53, 53, 53, 61, 61, 61, 61, 61, 61, 61, 61, | |
129,129,129,129,129,129,129,129,137,137,137,137,137,137,137,137, | |
145,145,145,145,145,145,145,145,153,153,153,153,153,153,153,153, | |
161,161,161,161,161,161,161,161,169,169,169,169,169,169,169,169, | |
177,177,177,177,177,177,177,177,185,185,185,185,185,185,185,185, | |
129,129,129,129,129,129,129,129,137,137,137,137,137,137,137,137, | |
145,145,145,145,145,145,145,145,153,153,153,153,153,153,153,153, | |
161,161,161,161,161,161,161,161,169,169,169,169,169,169,169,169, | |
177,177,177,177,177,177,177,177,185,185,185,185,185,185,185,185, | |
}; | |
/* cbits2Z80Table[i] = (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | 2, i = 0..511 */ | |
static const uint8 cbits2Z80Table[512] = { | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18, | |
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, | |
22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22, | |
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, | |
22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22, | |
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, | |
22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22, | |
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, | |
22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22, | |
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, | |
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23, | |
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, | |
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23, | |
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, | |
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23, | |
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, | |
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | |
19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
}; | |
/* cbits2Z80DupTable[i] = (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | 2 | | |
(i & 0xa8), i = 0..511 */ | |
static const uint8 cbits2Z80DupTable[512] = { | |
2, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 10, | |
18, 18, 18, 18, 18, 18, 18, 18, 26, 26, 26, 26, 26, 26, 26, 26, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 42, | |
50, 50, 50, 50, 50, 50, 50, 50, 58, 58, 58, 58, 58, 58, 58, 58, | |
2, 2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 10, | |
18, 18, 18, 18, 18, 18, 18, 18, 26, 26, 26, 26, 26, 26, 26, 26, | |
34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 42, | |
50, 50, 50, 50, 50, 50, 50, 50, 58, 58, 58, 58, 58, 58, 58, 58, | |
134,134,134,134,134,134,134,134,142,142,142,142,142,142,142,142, | |
150,150,150,150,150,150,150,150,158,158,158,158,158,158,158,158, | |
166,166,166,166,166,166,166,166,174,174,174,174,174,174,174,174, | |
182,182,182,182,182,182,182,182,190,190,190,190,190,190,190,190, | |
134,134,134,134,134,134,134,134,142,142,142,142,142,142,142,142, | |
150,150,150,150,150,150,150,150,158,158,158,158,158,158,158,158, | |
166,166,166,166,166,166,166,166,174,174,174,174,174,174,174,174, | |
182,182,182,182,182,182,182,182,190,190,190,190,190,190,190,190, | |
7, 7, 7, 7, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, | |
23, 23, 23, 23, 23, 23, 23, 23, 31, 31, 31, 31, 31, 31, 31, 31, | |
39, 39, 39, 39, 39, 39, 39, 39, 47, 47, 47, 47, 47, 47, 47, 47, | |
55, 55, 55, 55, 55, 55, 55, 55, 63, 63, 63, 63, 63, 63, 63, 63, | |
7, 7, 7, 7, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, | |
23, 23, 23, 23, 23, 23, 23, 23, 31, 31, 31, 31, 31, 31, 31, 31, | |
39, 39, 39, 39, 39, 39, 39, 39, 47, 47, 47, 47, 47, 47, 47, 47, | |
55, 55, 55, 55, 55, 55, 55, 55, 63, 63, 63, 63, 63, 63, 63, 63, | |
131,131,131,131,131,131,131,131,139,139,139,139,139,139,139,139, | |
147,147,147,147,147,147,147,147,155,155,155,155,155,155,155,155, | |
163,163,163,163,163,163,163,163,171,171,171,171,171,171,171,171, | |
179,179,179,179,179,179,179,179,187,187,187,187,187,187,187,187, | |
131,131,131,131,131,131,131,131,139,139,139,139,139,139,139,139, | |
147,147,147,147,147,147,147,147,155,155,155,155,155,155,155,155, | |
163,163,163,163,163,163,163,163,171,171,171,171,171,171,171,171, | |
179,179,179,179,179,179,179,179,187,187,187,187,187,187,187,187, | |
}; | |
/* negTable[i] = (((i & 0x0f) != 0) << 4) | ((i == 0x80) << 2) | 2 | (i != 0), i = 0..255 */ | |
static const uint8 negTable[256] = { | |
2,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
7,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19, | |
}; | |
/* rrdrldTable[i] = (i << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6) | parityTable[i], i = 0..255 */ | |
static const uint16 rrdrldTable[256] = { | |
0x0044,0x0100,0x0200,0x0304,0x0400,0x0504,0x0604,0x0700, | |
0x0808,0x090c,0x0a0c,0x0b08,0x0c0c,0x0d08,0x0e08,0x0f0c, | |
0x1000,0x1104,0x1204,0x1300,0x1404,0x1500,0x1600,0x1704, | |
0x180c,0x1908,0x1a08,0x1b0c,0x1c08,0x1d0c,0x1e0c,0x1f08, | |
0x2020,0x2124,0x2224,0x2320,0x2424,0x2520,0x2620,0x2724, | |
0x282c,0x2928,0x2a28,0x2b2c,0x2c28,0x2d2c,0x2e2c,0x2f28, | |
0x3024,0x3120,0x3220,0x3324,0x3420,0x3524,0x3624,0x3720, | |
0x3828,0x392c,0x3a2c,0x3b28,0x3c2c,0x3d28,0x3e28,0x3f2c, | |
0x4000,0x4104,0x4204,0x4300,0x4404,0x4500,0x4600,0x4704, | |
0x480c,0x4908,0x4a08,0x4b0c,0x4c08,0x4d0c,0x4e0c,0x4f08, | |
0x5004,0x5100,0x5200,0x5304,0x5400,0x5504,0x5604,0x5700, | |
0x5808,0x590c,0x5a0c,0x5b08,0x5c0c,0x5d08,0x5e08,0x5f0c, | |
0x6024,0x6120,0x6220,0x6324,0x6420,0x6524,0x6624,0x6720, | |
0x6828,0x692c,0x6a2c,0x6b28,0x6c2c,0x6d28,0x6e28,0x6f2c, | |
0x7020,0x7124,0x7224,0x7320,0x7424,0x7520,0x7620,0x7724, | |
0x782c,0x7928,0x7a28,0x7b2c,0x7c28,0x7d2c,0x7e2c,0x7f28, | |
0x8080,0x8184,0x8284,0x8380,0x8484,0x8580,0x8680,0x8784, | |
0x888c,0x8988,0x8a88,0x8b8c,0x8c88,0x8d8c,0x8e8c,0x8f88, | |
0x9084,0x9180,0x9280,0x9384,0x9480,0x9584,0x9684,0x9780, | |
0x9888,0x998c,0x9a8c,0x9b88,0x9c8c,0x9d88,0x9e88,0x9f8c, | |
0xa0a4,0xa1a0,0xa2a0,0xa3a4,0xa4a0,0xa5a4,0xa6a4,0xa7a0, | |
0xa8a8,0xa9ac,0xaaac,0xaba8,0xacac,0xada8,0xaea8,0xafac, | |
0xb0a0,0xb1a4,0xb2a4,0xb3a0,0xb4a4,0xb5a0,0xb6a0,0xb7a4, | |
0xb8ac,0xb9a8,0xbaa8,0xbbac,0xbca8,0xbdac,0xbeac,0xbfa8, | |
0xc084,0xc180,0xc280,0xc384,0xc480,0xc584,0xc684,0xc780, | |
0xc888,0xc98c,0xca8c,0xcb88,0xcc8c,0xcd88,0xce88,0xcf8c, | |
0xd080,0xd184,0xd284,0xd380,0xd484,0xd580,0xd680,0xd784, | |
0xd88c,0xd988,0xda88,0xdb8c,0xdc88,0xdd8c,0xde8c,0xdf88, | |
0xe0a0,0xe1a4,0xe2a4,0xe3a0,0xe4a4,0xe5a0,0xe6a0,0xe7a4, | |
0xe8ac,0xe9a8,0xeaa8,0xebac,0xeca8,0xedac,0xeeac,0xefa8, | |
0xf0a4,0xf1a0,0xf2a0,0xf3a4,0xf4a0,0xf5a4,0xf6a4,0xf7a0, | |
0xf8a8,0xf9ac,0xfaac,0xfba8,0xfcac,0xfda8,0xfea8,0xffac, | |
}; | |
/* cpTable[i] = (i & 0x80) | (((i & 0xff) == 0) << 6), i = 0..255 */ | |
static const uint8 cpTable[256] = { | |
64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, | |
128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, | |
128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, | |
128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, | |
128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, | |
128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, | |
128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, | |
128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, | |
}; | |
/* remove comments to generate table contents | |
static void altairz80_init(void); | |
void (*sim_vm_init) (void) = &altairz80_init; | |
static void altairz80_init(void) { | |
*/ | |
/* parityTable */ | |
/* | |
uint32 i, v; | |
for (i = 0; i < 256; i++) { | |
v = ((i & 1) + ((i & 2) >> 1) + ((i & 4) >> 2) + ((i & 8) >> 3) + | |
((i & 16) >> 4) + ((i & 32) >> 5) + ((i & 64) >> 6) + ((i & 128) >> 7)) % 2 ? 0 : 4; | |
printf("%1d,", v); | |
if ( ((i+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* incTable */ | |
/* | |
uint32 temp, v; | |
for (temp = 0; temp <= 256; temp++) { | |
v = (temp & 0xa8) | (((temp & 0xff) == 0) << 6) | (((temp & 0xf) == 0) << 4); | |
printf("%3d,", v); | |
if ( ((temp+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* decTable */ | |
/* | |
uint32 temp, v; | |
for (temp = 0; temp < 256; temp++) { | |
v = (temp & 0xa8) | (((temp & 0xff) == 0) << 6) | (((temp & 0xf) == 0xf) << 4) | 2; | |
printf("%3d,", v); | |
if ( ((temp+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* cbitsTable */ | |
/* | |
uint32 cbits, v; | |
for (cbits = 0; cbits < 512; cbits++) { | |
v = (cbits & 0x10) | ((cbits >> 8) & 1); | |
printf("%2d,", v); | |
if ( ((cbits+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* cbitsDup8Table */ | |
/* | |
uint32 cbits, v; | |
for (cbits = 0; cbits < 512; cbits++) { | |
v = (cbits & 0x10) | ((cbits >> 8) & 1) | ((cbits & 0xff) << 8) | (cbits & 0xa8) | (((cbits & 0xff) == 0) << 6); | |
printf("0x%04x,", v); | |
if ( ((cbits+1) & 0x7) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* cbitsDup16Table */ | |
/* | |
uint32 cbits, v; | |
for (cbits = 0; cbits < 512; cbits++) { | |
v = (cbits & 0x10) | ((cbits >> 8) & 1) | (cbits & 0x28); | |
printf("%2d,", v); | |
if ( ((cbits+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* cbits2Table */ | |
/* | |
uint32 cbits, v; | |
for (cbits = 0; cbits < 512; cbits++) { | |
v = (cbits & 0x10) | ((cbits >> 8) & 1) | 2; | |
printf("%2d,", v); | |
if ( ((cbits+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* rrcaTable */ | |
/* | |
uint32 temp, sum, v; | |
for (temp = 0; temp < 256; temp++) { | |
sum = temp >> 1; | |
v = ((temp & 1) << 15) | (sum << 8) | (sum & 0x28) | (temp & 1); | |
printf("0x%04x,", v); | |
if ( ((temp+1) & 0x7) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* rraTable */ | |
/* | |
uint32 temp, sum, v; | |
for (temp = 0; temp < 256; temp++) { | |
sum = temp >> 1; | |
v = (sum << 8) | (sum & 0x28) | (temp & 1); | |
printf("0x%04x,", v); | |
if ( ((temp+1) & 0x7) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* addTable */ | |
/* | |
uint32 sum, v; | |
for (sum = 0; sum < 512; sum++) { | |
v = ((sum & 0xff) << 8) | (sum & 0xa8) | (((sum & 0xff) == 0) << 6); | |
printf("0x%04x,", v); | |
if ( ((sum+1) & 0x7) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* subTable */ | |
/* | |
uint32 sum, v; | |
for (sum = 0; sum < 256; sum++) { | |
v = ((sum & 0xff) << 8) | (sum & 0xa8) | (((sum & 0xff) == 0) << 6) | 2; | |
printf("0x%04x,", v); | |
if ( ((sum+1) & 0x7) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* andTable */ | |
/* | |
uint32 sum, v; | |
for (sum = 0; sum < 256; sum++) { | |
v = (sum << 8) | (sum & 0xa8) | ((sum == 0) << 6) | 0x10 | parityTable[sum]; | |
printf("0x%04x,", v); | |
if ( ((sum+1) & 0x7) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* xororTable */ | |
/* | |
uint32 sum, v; | |
for (sum = 0; sum < 256; sum++) { | |
v = (sum << 8) | (sum & 0xa8) | ((sum == 0) << 6) | parityTable[sum]; | |
printf("0x%04x,", v); | |
if ( ((sum+1) & 0x7) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* rotateShiftTable */ | |
/* | |
uint32 temp, v; | |
for (temp = 0; temp < 256; temp++) { | |
v = (temp & 0xa8) | (((temp & 0xff) == 0) << 6) | parity(temp); | |
printf("%3d,", v); | |
if ( ((temp+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* incZ80Table */ | |
/* | |
uint32 temp, v; | |
for (temp = 0; temp < 256; temp++) { | |
v = (temp & 0xa8) | (((temp & 0xff) == 0) << 6) | | |
(((temp & 0xf) == 0) << 4) | ((temp == 0x80) << 2); | |
printf("%3d,", v); | |
if ( ((temp+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* decZ80Table */ | |
/* | |
uint32 temp, v; | |
for (temp = 0; temp < 256; temp++) { | |
v = (temp & 0xa8) | (((temp & 0xff) == 0) << 6) | | |
(((temp & 0xf) == 0xf) << 4) | ((temp == 0x7f) << 2) | 2; | |
printf("%3d,", v); | |
if ( ((temp+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* cbitsZ80Table */ | |
/* | |
uint32 cbits, v; | |
for (cbits = 0; cbits < 512; cbits++) { | |
v = (cbits & 0x10) | (((cbits >> 6) ^ (cbits >> 5)) & 4) | | |
((cbits >> 8) & 1); | |
printf("%2d,", v); | |
if ( ((cbits+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* cbitsZ80DupTable */ | |
/* | |
uint32 cbits, v; | |
for (cbits = 0; cbits < 512; cbits++) { | |
v = (cbits & 0x10) | (((cbits >> 6) ^ (cbits >> 5)) & 4) | | |
((cbits >> 8) & 1) | (cbits & 0xa8); | |
printf("%3d,", v); | |
if ( ((cbits+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* cbits2Z80Table */ | |
/* | |
uint32 cbits, v; | |
for (cbits = 0; cbits < 512; cbits++) { | |
v = (((cbits >> 6) ^ (cbits >> 5)) & 4) | (cbits & 0x10) | 2 | ((cbits >> 8) & 1); | |
printf("%2d,", v); | |
if ( ((cbits+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* cbits2Z80DupTable */ | |
/* | |
uint32 cbits, v; | |
for (cbits = 0; cbits < 512; cbits++) { | |
v = (((cbits >> 6) ^ (cbits >> 5)) & 4) | (cbits & 0x10) | 2 | ((cbits >> 8) & 1) | | |
(cbits & 0xa8); | |
printf("%3d,", v); | |
if ( ((cbits+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* negTable */ | |
/* | |
uint32 temp, v; | |
for (temp = 0; temp < 256; temp++) { | |
v = (((temp & 0x0f) != 0) << 4) | ((temp == 0x80) << 2) | 2 | (temp != 0); | |
printf("%2d,", v); | |
if ( ((temp+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* rrdrldTable */ | |
/* | |
uint32 acu, v; | |
for (acu = 0; acu < 256; acu++) { | |
v = (acu << 8) | (acu & 0xa8) | (((acu & 0xff) == 0) << 6) | parityTable[acu]; | |
printf("0x%04x,", v); | |
if ( ((acu+1) & 0x7) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* cpTable */ | |
/* | |
uint32 sum, v; | |
for (sum = 0; sum < 256; sum++) { | |
v = (sum & 0x80) | (((sum & 0xff) == 0) << 6); | |
printf("%3d,", v); | |
if ( ((sum+1) & 0xf) == 0) { | |
printf("\n"); | |
} | |
} | |
*/ | |
/* remove comments to generate table contents | |
} | |
*/ | |
/* Memory management */ | |
static int32 lowProtect; | |
static int32 highProtect; | |
static int32 isProtected = FALSE; | |
void protect(const int32 l, const int32 h) { | |
isProtected = TRUE; | |
lowProtect = l; | |
highProtect = h; | |
} | |
static uint8 M[MAXMEMSIZE][MAXBANKS]; /* RAM which is present */ | |
static void warnUnsuccessfulWriteAttempt(const uint32 Addr) { | |
if (cpu_unit.flags & UNIT_WARNROM) { | |
if (addressIsInROM(Addr)) { | |
message2("Attempt to write to ROM " AddressFormat ".", Addr); | |
} | |
else { | |
message2("Attempt to write to non existing memory " AddressFormat ".", Addr); | |
} | |
} | |
} | |
static uint8 warnUnsuccessfulReadAttempt(const uint32 Addr) { | |
if (cpu_unit.flags & UNIT_WARNROM) { | |
message2("Attempt to read from non existing memory " AddressFormat ".", Addr); | |
} | |
return 0xff; | |
} | |
/* determine whether Addr points to Read Only Memory */ | |
int32 addressIsInROM(const uint32 Addr) { | |
uint32 addr = Addr & ADDRMASK; /* registers are NOT guaranteed to be always 16-bit values */ | |
return (cpu_unit.flags & UNIT_ROM) && ( /* must have ROM enabled */ | |
/* in banked case we have standard Altair ROM */ | |
((cpu_unit.flags & UNIT_BANKED) && (defaultROMLow <= addr)) || | |
/* in non-banked case we check the bounds of the ROM */ | |
(((cpu_unit.flags & UNIT_BANKED) == 0) && (ROMLow <= addr) && (addr <= ROMHigh))); | |
} | |
/* determine whether Addr points to a valid memory address */ | |
int32 addressExists(const uint32 Addr) { | |
uint32 addr = Addr & ADDRMASK; /* registers are NOT guaranteed to be always 16-bit values */ | |
return (cpu_unit.flags & UNIT_BANKED) || (addr < MEMSIZE) || | |
( ((cpu_unit.flags & UNIT_BANKED) == 0) && (cpu_unit.flags & UNIT_ROM) | |
&& (ROMLow <= addr) && (addr <= ROMHigh) ); | |
} | |
static void PutBYTE(register uint32 Addr, const register uint32 Value) { | |
Addr &= ADDRMASK; /* registers are NOT guaranteed to be always 16-bit values */ | |
if (cpu_unit.flags & UNIT_BANKED) { | |
if (Addr < common) { | |
M[Addr][bankSelect] = Value; | |
} | |
else if ((Addr < defaultROMLow) || ((cpu_unit.flags & UNIT_ROM) == 0)) { | |
M[Addr][0] = Value; | |
} | |
else { | |
warnUnsuccessfulWriteAttempt(Addr); | |
} | |
} | |
else { | |
if ((Addr < MEMSIZE) && ((Addr < ROMLow) || (Addr > ROMHigh) || ((cpu_unit.flags & UNIT_ROM) == 0))) { | |
M[Addr][0] = Value; | |
} | |
else { | |
warnUnsuccessfulWriteAttempt(Addr); | |
} | |
} | |
} | |
static void PutWORD(register uint32 Addr, const register uint32 Value) { | |
Addr &= ADDRMASK; /* registers are NOT guaranteed to be always 16-bit values */ | |
if (cpu_unit.flags & UNIT_BANKED) { | |
if (Addr < common) { | |
M[Addr][bankSelect] = Value; | |
} | |
else if ((Addr < defaultROMLow) || ((cpu_unit.flags & UNIT_ROM) == 0)) { | |
M[Addr][0] = Value; | |
} | |
else { | |
warnUnsuccessfulWriteAttempt(Addr); | |
} | |
Addr = (Addr + 1) & ADDRMASK; | |
if (Addr < common) { | |
M[Addr][bankSelect] = Value >> 8; | |
} | |
else if ((Addr < defaultROMLow) || ((cpu_unit.flags & UNIT_ROM) == 0)) { | |
M[Addr][0] = Value >> 8; | |
} | |
else { | |
warnUnsuccessfulWriteAttempt(Addr); | |
} | |
} | |
else { | |
if ((Addr < MEMSIZE) && ((Addr < ROMLow) || (Addr > ROMHigh) || ((cpu_unit.flags & UNIT_ROM) == 0))) { | |
M[Addr][0] = Value; | |
} | |
else { | |
warnUnsuccessfulWriteAttempt(Addr); | |
} | |
Addr = (Addr + 1) & ADDRMASK; | |
if ((Addr < MEMSIZE) && ((Addr < ROMLow) || (Addr > ROMHigh) || ((cpu_unit.flags & UNIT_ROM) == 0))) { | |
M[Addr][0] = Value >> 8; | |
} | |
else { | |
warnUnsuccessfulWriteAttempt(Addr); | |
} | |
} | |
} | |
static void PutBYTEForced(uint32 Addr, const uint32 Value) { | |
Addr &= ADDRMASK; /* registers are NOT guaranteed to be always 16-bit values */ | |
if ((cpu_unit.flags & UNIT_BANKED) && (Addr < common)) { | |
M[Addr][bankSelect] = Value; | |
} | |
else { | |
M[Addr][0] = Value; | |
} | |
} | |
void PutBYTEBasic(const uint32 Addr, const uint32 Bank, const uint32 Value) { | |
M[Addr & ADDRMASK][Bank & BANKMASK] = Value; | |
} | |
int32 install_bootrom(void) { | |
extern int32 bootrom[bootrom_size]; | |
int32 i, cnt = 0; | |
for (i = 0; i < bootrom_size; i++) { | |
if (M[i + defaultROMLow][0] != (bootrom[i] & 0xff)) { | |
cnt++; | |
M[i + defaultROMLow][0] = bootrom[i] & 0xff; | |
} | |
} | |
return cnt; | |
} | |
static void resetCell(const int32 address, const int32 bank) { | |
if (!(isProtected && (bank == 0) && (lowProtect <= address) && (address <= highProtect))) { | |
M[address][bank] = 0; | |
} | |
} | |
/* memory examine */ | |
t_stat cpu_ex(t_value *vptr, t_addr addr, UNIT *uptr, int32 sw) { | |
*vptr = M[addr & ADDRMASK][(addr >> 16) & BANKMASK]; | |
return SCPE_OK; | |
} | |
/* memory deposit */ | |
t_stat cpu_dep(t_value val, t_addr addr, UNIT *uptr, int32 sw) { | |
M[addr & ADDRMASK][(addr >> 16) & BANKMASK] = val & 0xff; | |
return SCPE_OK; | |
} | |
int32 getBankSelect(void) { | |
return bankSelect; | |
} | |
void setBankSelect(const int32 b) { | |
bankSelect = b; | |
} | |
uint32 getCommon(void) { | |
return common; | |
} | |
#define Reduce(Addr) ((Addr) & ADDRMASK) | |
#define GetBYTE(Addr) \ | |
((cpu_unit.flags & UNIT_BANKED) ? \ | |
(Reduce(Addr) < common ? \ | |
M[Reduce(Addr)][bankSelect] \ | |
: \ | |
M[Reduce(Addr)][0]) \ | |
: \ | |
(((Reduce(Addr) < MEMSIZE) || ( (cpu_unit.flags & UNIT_ROM) && (ROMLow <= Reduce(Addr)) && (Reduce(Addr) <= ROMHigh) )) ? \ | |
M[Reduce(Addr)][0] \ | |
: \ | |
warnUnsuccessfulReadAttempt(Reduce(Addr)))) | |
#define RAM_pp(Addr) \ | |
((cpu_unit.flags & UNIT_BANKED) ? \ | |
(Reduce(Addr) < common ? \ | |
M[Reduce(Addr++)][bankSelect] \ | |
: \ | |
M[Reduce(Addr++)][0]) \ | |
: \ | |
(((Reduce(Addr) < MEMSIZE) || ( (cpu_unit.flags & UNIT_ROM) && (ROMLow <= Reduce(Addr)) && (Reduce(Addr) <= ROMHigh) )) ? \ | |
M[Reduce(Addr++)][0] \ | |
: \ | |
warnUnsuccessfulReadAttempt(Reduce(Addr++)))) | |
#define RAM_mm(Addr) \ | |
((cpu_unit.flags & UNIT_BANKED) ? \ | |
(Reduce(Addr) < common ? \ | |
M[Reduce(Addr--)][bankSelect] \ | |
: \ | |
M[Reduce(Addr--)][0]) \ | |
: \ | |
(((Reduce(Addr) < MEMSIZE) || ( (cpu_unit.flags & UNIT_ROM) && (ROMLow <= Reduce(Addr)) && (Reduce(Addr) <= ROMHigh) )) ? \ | |
M[Reduce(Addr--)][0] \ | |
: \ | |
warnUnsuccessfulReadAttempt(Reduce(Addr--)))) | |
#define GetWORD(Addr) (GetBYTE(Addr) | (GetBYTE(Addr + 1) << 8)) | |
uint8 GetBYTEWrapper(const uint32 Addr) { | |
return GetBYTE(Addr); | |
} | |
void PutBYTEWrapper(const uint32 Addr, const uint32 Value) { | |
PutBYTE(Addr, Value); | |
} | |
#define PutBYTE_pp(a,v) PutBYTE(a++, v) | |
#define PutBYTE_mm(a,v) PutBYTE(a--, v) | |
#define mm_PutBYTE(a,v) PutBYTE(--a, v) | |
#define MASK_BRK (TRUE + 1) | |
/* this is a modified version of sim_brk_test with two differences: | |
1) is does not set sim_brk_pend to FALSE (this is left to the instruction decode) | |
2) it returns MASK_BRK if a breakpoint is found but should be ignored | |
*/ | |
static int32 sim_brk_lookup (const t_addr loc, const int32 btyp) { | |
extern t_bool sim_brk_pend[SIM_BKPT_N_SPC]; | |
extern t_addr sim_brk_ploc[SIM_BKPT_N_SPC]; | |
extern char *sim_brk_act; | |
BRKTAB *bp; | |
if ((bp = sim_brk_fnd (loc)) && /* entry in table? */ | |
(btyp & bp -> typ) && /* type match? */ | |
(!sim_brk_pend[0] || (loc != sim_brk_ploc[0])) && /* new location? */ | |
(--(bp -> cnt) <= 0)) { /* count reach 0? */ | |
bp -> cnt = 0; /* reset count */ | |
sim_brk_ploc[0] = loc; /* save location */ | |
sim_brk_act = bp -> act; /* set up actions */ | |
sim_brk_pend[0] = TRUE; /* don't do twice */ | |
return TRUE; | |
} | |
return (sim_brk_pend[0] && (loc == sim_brk_ploc[0])) ? MASK_BRK : FALSE; | |
} | |
static void prepareMemoryAccessMessage(t_addr loc) { | |
extern char memoryAccessMessage[]; | |
sprintf(memoryAccessMessage, "Memory access breakpoint [%04xh]", loc); | |
} | |
#define PUSH(x) { \ | |
mm_PutBYTE(SP, (x) >> 8); \ | |
mm_PutBYTE(SP, x); \ | |
} | |
#define CheckBreakByte(a) \ | |
if (sim_brk_summ && sim_brk_test(a, SWMASK('M'))) { \ | |
reason = STOP_MEM; \ | |
prepareMemoryAccessMessage(a); \ | |
goto end_decode; \ | |
} | |
#define CheckBreakTwoBytesExtended(a1, a2, iCode) \ | |
if (sim_brk_summ) { \ | |
br1 = sim_brk_lookup(a1, SWMASK('M')); \ | |
br2 = br1 ? FALSE : sim_brk_lookup(a2, SWMASK('M')); \ | |
if ((br1 == MASK_BRK) || (br2 == MASK_BRK)) { \ | |
sim_brk_pend[0] = FALSE; \ | |
} \ | |
else if (br1 || br2) { \ | |
reason = STOP_MEM; \ | |
if (br1) { \ | |
prepareMemoryAccessMessage(a1); \ | |
} \ | |
else { \ | |
prepareMemoryAccessMessage(a2); \ | |
} \ | |
iCode; \ | |
goto end_decode; \ | |
} \ | |
else { \ | |
sim_brk_pend[0] = FALSE; \ | |
} \ | |
} | |
#define CheckBreakTwoBytes(a1, a2) CheckBreakTwoBytesExtended(a1, a2,;) | |
#define CheckBreakWord(a) CheckBreakTwoBytes(a, (a + 1)) | |
t_stat sim_instr (void) { | |
extern int32 sim_interval; | |
extern t_bool sim_brk_pend[SIM_BKPT_N_SPC]; | |
extern int32 timerInterrupt; | |
extern int32 timerInterruptHandler; | |
extern uint32 sim_os_msec(void); | |
extern t_bool rtc_avail; | |
extern uint32 sim_brk_summ; | |
int32 reason = 0; | |
register uint32 specialProcessing; | |
register uint32 AF; | |
register uint32 BC; | |
register uint32 DE; | |
register uint32 HL; | |
register uint32 PC; | |
register uint32 SP; | |
register uint32 IX; | |
register uint32 IY; | |
register uint32 temp = 0; | |
register uint32 acu = 0; | |
register uint32 sum; | |
register uint32 cbits; | |
register uint32 op; | |
register uint32 adr; | |
/* tStates contains the number of t-states executed. One t-state is executed | |
in one microsecond on a 1MHz CPU. tStates is used for real-time simulations. */ | |
register uint32 tStates; | |
uint32 tStatesInSlice; /* number of t-states in 10 mSec time-slice */ | |
uint32 startTime; | |
int32 br1, br2, tStateModifier = FALSE; | |
AF = AF_S; | |
BC = BC_S; | |
DE = DE_S; | |
HL = HL_S; | |
PC = saved_PC & ADDRMASK; | |
SP = SP_S; | |
IX = IX_S; | |
IY = IY_S; | |
specialProcessing = clockFrequency | timerInterrupt | sim_brk_summ; | |
tStates = 0; | |
if (rtc_avail) { | |
startTime = sim_os_msec(); | |
tStatesInSlice = sliceLength*clockFrequency; | |
} | |
else { /* make sure that sim_os_msec() is not called later */ | |
clockFrequency = startTime = tStatesInSlice = 0; | |
} | |
/* main instruction fetch/decode loop */ | |
while (TRUE) { /* loop until halted */ | |
if (sim_interval <= 0) { /* check clock queue */ | |
if ( (reason = sim_process_event()) ) { | |
break; | |
} | |
else { | |
specialProcessing = clockFrequency | timerInterrupt | sim_brk_summ; | |
} | |
} | |
if (specialProcessing) { /* quick check for special processing */ | |
if (clockFrequency && (tStates >= tStatesInSlice)) { | |
/* clockFrequency != 0 implies that real time clock is available */ | |
startTime += sliceLength; | |
tStates -= tStatesInSlice; | |
#if defined (_WIN32) | |
while (sim_os_msec() <= startTime) {} /* poor man's sleep */ | |
#else | |
{ | |
uint32 now; | |
if (startTime > (now = sim_os_msec())) { | |
usleep(1000 * (startTime - now)); | |
} | |
} | |
#endif | |
} | |
if (timerInterrupt && (IFF_S & 1)) { | |
timerInterrupt = FALSE; | |
specialProcessing = clockFrequency | sim_brk_summ; | |
IFF_S = 0; /* disable interrupts */ | |
CheckBreakTwoBytesExtended(SP - 2, SP - 1, (timerInterrupt = TRUE, IFF_S |= 1)); | |
PUSH(PC); | |
PCQ_ENTRY(PC - 1); | |
PC = timerInterruptHandler & ADDRMASK; | |
} | |
if (sim_brk_summ && (sim_brk_lookup(PC, SWMASK('E')) == TRUE)) { /* breakpoint? */ | |
reason = STOP_IBKPT; /* stop simulation */ | |
break; | |
} | |
} | |
PCX = PC; | |
sim_interval--; | |
/* make sure that each instructions properly sets sim_brk_pend: | |
1) Either directly to FALSE if no memory access takes place or | |
2) through a call to a Check... routine | |
*/ | |
switch(RAM_pp(PC)) { | |
case 0x00: /* NOP */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
break; | |
case 0x01: /* LD BC,nnnn */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
BC = GetWORD(PC); | |
PC += 2; | |
break; | |
case 0x02: /* LD (BC),A */ | |
tStates += 7; | |
CheckBreakByte(BC) | |
PutBYTE(BC, hreg(AF)); | |
break; | |
case 0x03: /* INC BC */ | |
tStates += 6; | |
sim_brk_pend[0] = FALSE; | |
++BC; | |
break; | |
case 0x04: /* INC B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC += 0x100; | |
temp = hreg(BC); | |
AF = (AF & ~0xfe) | incTable[temp] | SetPV2(0x80); /* SetPV2 uses temp */ | |
break; | |
case 0x05: /* DEC B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC -= 0x100; | |
temp = hreg(BC); | |
AF = (AF & ~0xfe) | decTable[temp] | SetPV2(0x7f); /* SetPV2 uses temp */ | |
break; | |
case 0x06: /* LD B,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(BC, RAM_pp(PC)); | |
break; | |
case 0x07: /* RLCA */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = ((AF >> 7) & 0x0128) | ((AF << 1) & ~0x1ff) | | |
(AF & 0xc4) | ((AF >> 15) & 1); | |
break; | |
case 0x08: /* EX AF,AF' */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
checkCPU8080; | |
temp = AF; | |
AF = AF1_S; | |
AF1_S = temp; | |
break; | |
case 0x09: /* ADD HL,BC */ | |
tStates += 11; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
BC &= ADDRMASK; | |
sum = HL + BC; | |
AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(HL ^ BC ^ sum) >> 8]; | |
HL = sum; | |
break; | |
case 0x0a: /* LD A,(BC) */ | |
tStates += 7; | |
CheckBreakByte(BC) | |
Sethreg(AF, GetBYTE(BC)); | |
break; | |
case 0x0b: /* DEC BC */ | |
tStates += 6; | |
sim_brk_pend[0] = FALSE; | |
--BC; | |
break; | |
case 0x0c: /* INC C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(BC) + 1; | |
Setlreg(BC, temp); | |
AF = (AF & ~0xfe) | incTable[temp] | SetPV2(0x80); | |
break; | |
case 0x0d: /* DEC C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(BC) - 1; | |
Setlreg(BC, temp); | |
AF = (AF & ~0xfe) | decTable[temp & 0xff] | SetPV2(0x7f); | |
break; | |
case 0x0e: /* LD C,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(BC, RAM_pp(PC)); | |
break; | |
case 0x0f: /* RRCA */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & 0xc4) | rrcaTable[hreg(AF)]; | |
break; | |
case 0x10: /* DJNZ dd */ | |
sim_brk_pend[0] = FALSE; | |
checkCPU8080; | |
if ((BC -= 0x100) & 0xff00) { | |
PCQ_ENTRY(PC - 1); | |
PC += (int8) GetBYTE(PC) + 1; | |
tStates += 13; | |
} | |
else { | |
PC++; | |
tStates += 8; | |
} | |
break; | |
case 0x11: /* LD DE,nnnn */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
DE = GetWORD(PC); | |
PC += 2; | |
break; | |
case 0x12: /* LD (DE),A */ | |
tStates += 7; | |
CheckBreakByte(DE) | |
PutBYTE(DE, hreg(AF)); | |
break; | |
case 0x13: /* INC DE */ | |
tStates += 6; | |
sim_brk_pend[0] = FALSE; | |
++DE; | |
break; | |
case 0x14: /* INC D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE += 0x100; | |
temp = hreg(DE); | |
AF = (AF & ~0xfe) | incTable[temp] | SetPV2(0x80); /* SetPV2 uses temp */ | |
break; | |
case 0x15: /* DEC D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE -= 0x100; | |
temp = hreg(DE); | |
AF = (AF & ~0xfe) | decTable[temp] | SetPV2(0x7f); /* SetPV2 uses temp */ | |
break; | |
case 0x16: /* LD D,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(DE, RAM_pp(PC)); | |
break; | |
case 0x17: /* RLA */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = ((AF << 8) & 0x0100) | ((AF >> 7) & 0x28) | ((AF << 1) & ~0x01ff) | | |
(AF & 0xc4) | ((AF >> 15) & 1); | |
break; | |
case 0x18: /* JR dd */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
checkCPU8080; | |
PCQ_ENTRY(PC - 1); | |
PC += (int8) GetBYTE(PC) + 1; | |
break; | |
case 0x19: /* ADD HL,DE */ | |
tStates += 11; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
DE &= ADDRMASK; | |
sum = HL + DE; | |
AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(HL ^ DE ^ sum) >> 8]; | |
HL = sum; | |
break; | |
case 0x1a: /* LD A,(DE) */ | |
tStates += 7; | |
CheckBreakByte(DE) | |
Sethreg(AF, GetBYTE(DE)); | |
break; | |
case 0x1b: /* DEC DE */ | |
tStates += 6; | |
sim_brk_pend[0] = FALSE; | |
--DE; | |
break; | |
case 0x1c: /* INC E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(DE) + 1; | |
Setlreg(DE, temp); | |
AF = (AF & ~0xfe) | incTable[temp] | SetPV2(0x80); | |
break; | |
case 0x1d: /* DEC E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(DE) - 1; | |
Setlreg(DE, temp); | |
AF = (AF & ~0xfe) | decTable[temp & 0xff] | SetPV2(0x7f); | |
break; | |
case 0x1e: /* LD E,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(DE, RAM_pp(PC)); | |
break; | |
case 0x1f: /* RRA */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = ((AF & 1) << 15) | (AF & 0xc4) | rraTable[hreg(AF)]; | |
break; | |
case 0x20: /* JR NZ,dd */ | |
sim_brk_pend[0] = FALSE; | |
checkCPU8080; | |
if (TSTFLAG(Z)) { | |
PC++; | |
tStates += 7; | |
} | |
else { | |
PCQ_ENTRY(PC - 1); | |
PC += (int8) GetBYTE(PC) + 1; | |
tStates += 12; | |
} | |
break; | |
case 0x21: /* LD HL,nnnn */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
HL = GetWORD(PC); | |
PC += 2; | |
break; | |
case 0x22: /* LD (nnnn),HL */ | |
tStates += 16; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
PutWORD(temp, HL); | |
PC += 2; | |
break; | |
case 0x23: /* INC HL */ | |
tStates += 6; | |
sim_brk_pend[0] = FALSE; | |
++HL; | |
break; | |
case 0x24: /* INC H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL += 0x100; | |
temp = hreg(HL); | |
AF = (AF & ~0xfe) | incTable[temp] | SetPV2(0x80); /* SetPV2 uses temp */ | |
break; | |
case 0x25: /* DEC H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL -= 0x100; | |
temp = hreg(HL); | |
AF = (AF & ~0xfe) | decTable[temp] | SetPV2(0x7f); /* SetPV2 uses temp */ | |
break; | |
case 0x26: /* LD H,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(HL, RAM_pp(PC)); | |
break; | |
case 0x27: /* DAA */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
acu = hreg(AF); | |
temp = ldig(acu); | |
cbits = TSTFLAG(C); | |
if (TSTFLAG(N)) { /* last operation was a subtract */ | |
int hd = cbits || acu > 0x99; | |
if (TSTFLAG(H) || (temp > 9)) { /* adjust low digit */ | |
if (temp > 5) { | |
SETFLAG(H, 0); | |
} | |
acu -= 6; | |
acu &= 0xff; | |
} | |
if (hd) { /* adjust high digit */ | |
acu -= 0x160; | |
} | |
} | |
else { /* last operation was an add */ | |
if (TSTFLAG(H) || (temp > 9)) { /* adjust low digit */ | |
SETFLAG(H, (temp > 9)); | |
acu += 6; | |
} | |
if (cbits || ((acu & 0x1f0) > 0x90)) { /* adjust high digit */ | |
acu += 0x60; | |
} | |
} | |
AF = (AF & 0x12) | rrdrldTable[acu & 0xff] | ((acu >> 8) & 1) | cbits; | |
break; | |
case 0x28: /* JR Z,dd */ | |
sim_brk_pend[0] = FALSE; | |
checkCPU8080; | |
if (TSTFLAG(Z)) { | |
PCQ_ENTRY(PC - 1); | |
PC += (int8) GetBYTE(PC) + 1; | |
tStates += 12; | |
} | |
else { | |
PC++; | |
tStates += 7; | |
} | |
break; | |
case 0x29: /* ADD HL,HL */ | |
tStates += 11; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
sum = HL + HL; | |
AF = (AF & ~0x3b) | cbitsDup16Table[sum >> 8]; | |
HL = sum; | |
break; | |
case 0x2a: /* LD HL,(nnnn) */ | |
tStates += 16; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
HL = GetWORD(temp); | |
PC += 2; | |
break; | |
case 0x2b: /* DEC HL */ | |
tStates += 6; | |
sim_brk_pend[0] = FALSE; | |
--HL; | |
break; | |
case 0x2c: /* INC L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(HL) + 1; | |
Setlreg(HL, temp); | |
AF = (AF & ~0xfe) | incTable[temp] | SetPV2(0x80); | |
break; | |
case 0x2d: /* DEC L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(HL) - 1; | |
Setlreg(HL, temp); | |
AF = (AF & ~0xfe) | decTable[temp & 0xff] | SetPV2(0x7f); | |
break; | |
case 0x2e: /* LD L,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(HL, RAM_pp(PC)); | |
break; | |
case 0x2f: /* CPL */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (~AF & ~0xff) | (AF & 0xc5) | ((~AF >> 8) & 0x28) | 0x12; | |
break; | |
case 0x30: /* JR NC,dd */ | |
sim_brk_pend[0] = FALSE; | |
checkCPU8080; | |
if (TSTFLAG(C)) { | |
PC++; | |
tStates += 7; | |
} | |
else { | |
PCQ_ENTRY(PC - 1); | |
PC += (int8) GetBYTE(PC) + 1; | |
tStates += 12; | |
} | |
break; | |
case 0x31: /* LD SP,nnnn */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
SP = GetWORD(PC); | |
PC += 2; | |
break; | |
case 0x32: /* LD (nnnn),A */ | |
tStates += 13; | |
temp = GetWORD(PC); | |
CheckBreakByte(temp); | |
PutBYTE(temp, hreg(AF)); | |
PC += 2; | |
break; | |
case 0x33: /* INC SP */ | |
tStates += 6; | |
sim_brk_pend[0] = FALSE; | |
++SP; | |
break; | |
case 0x34: /* INC (HL) */ | |
tStates += 11; | |
CheckBreakByte(HL); | |
temp = GetBYTE(HL) + 1; | |
PutBYTE(HL, temp); | |
AF = (AF & ~0xfe) | incTable[temp] | SetPV2(0x80); | |
break; | |
case 0x35: /* DEC (HL) */ | |
tStates += 11; | |
CheckBreakByte(HL); | |
temp = GetBYTE(HL) - 1; | |
PutBYTE(HL, temp); | |
AF = (AF & ~0xfe) | decTable[temp & 0xff] | SetPV2(0x7f); | |
break; | |
case 0x36: /* LD (HL),nn */ | |
tStates += 10; | |
CheckBreakByte(HL); | |
PutBYTE(HL, RAM_pp(PC)); | |
break; | |
case 0x37: /* SCF */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & ~0x3b) | ((AF >> 8) & 0x28) | 1; | |
break; | |
case 0x38: /* JR C,dd */ | |
sim_brk_pend[0] = FALSE; | |
checkCPU8080; | |
if (TSTFLAG(C)) { | |
PCQ_ENTRY(PC - 1); | |
PC += (int8) GetBYTE(PC) + 1; | |
tStates += 12; | |
} | |
else { | |
PC++; | |
tStates += 7; | |
} | |
break; | |
case 0x39: /* ADD HL,SP */ | |
tStates += 11; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
SP &= ADDRMASK; | |
sum = HL + SP; | |
AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(HL ^ SP ^ sum) >> 8]; | |
HL = sum; | |
break; | |
case 0x3a: /* LD A,(nnnn) */ | |
tStates += 13; | |
temp = GetWORD(PC); | |
CheckBreakByte(temp); | |
Sethreg(AF, GetBYTE(temp)); | |
PC += 2; | |
break; | |
case 0x3b: /* DEC SP */ | |
tStates += 6; | |
sim_brk_pend[0] = FALSE; | |
--SP; | |
break; | |
case 0x3c: /* INC A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF += 0x100; | |
temp = hreg(AF); | |
AF = (AF & ~0xfe) | incTable[temp] | SetPV2(0x80); /* SetPV2 uses temp */ | |
break; | |
case 0x3d: /* DEC A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF -= 0x100; | |
temp = hreg(AF); | |
AF = (AF & ~0xfe) | decTable[temp] | SetPV2(0x7f); /* SetPV2 uses temp */ | |
break; | |
case 0x3e: /* LD A,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(AF, RAM_pp(PC)); | |
break; | |
case 0x3f: /* CCF */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & ~0x3b) | ((AF >> 8) & 0x28) | ((AF & 1) << 4) | (~AF & 1); | |
break; | |
case 0x40: /* LD B,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x41: /* LD B,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & 0xff) | ((BC & 0xff) << 8); | |
break; | |
case 0x42: /* LD B,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & 0xff) | (DE & ~0xff); | |
break; | |
case 0x43: /* LD B,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & 0xff) | ((DE & 0xff) << 8); | |
break; | |
case 0x44: /* LD B,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & 0xff) | (HL & ~0xff); | |
break; | |
case 0x45: /* LD B,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & 0xff) | ((HL & 0xff) << 8); | |
break; | |
case 0x46: /* LD B,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
Sethreg(BC, GetBYTE(HL)); | |
break; | |
case 0x47: /* LD B,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & 0xff) | (AF & ~0xff); | |
break; | |
case 0x48: /* LD C,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & ~0xff) | ((BC >> 8) & 0xff); | |
break; | |
case 0x49: /* LD C,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x4a: /* LD C,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & ~0xff) | ((DE >> 8) & 0xff); | |
break; | |
case 0x4b: /* LD C,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & ~0xff) | (DE & 0xff); | |
break; | |
case 0x4c: /* LD C,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & ~0xff) | ((HL >> 8) & 0xff); | |
break; | |
case 0x4d: /* LD C,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & ~0xff) | (HL & 0xff); | |
break; | |
case 0x4e: /* LD C,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
Setlreg(BC, GetBYTE(HL)); | |
break; | |
case 0x4f: /* LD C,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
BC = (BC & ~0xff) | ((AF >> 8) & 0xff); | |
break; | |
case 0x50: /* LD D,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & 0xff) | (BC & ~0xff); | |
break; | |
case 0x51: /* LD D,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & 0xff) | ((BC & 0xff) << 8); | |
break; | |
case 0x52: /* LD D,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x53: /* LD D,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & 0xff) | ((DE & 0xff) << 8); | |
break; | |
case 0x54: /* LD D,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & 0xff) | (HL & ~0xff); | |
break; | |
case 0x55: /* LD D,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & 0xff) | ((HL & 0xff) << 8); | |
break; | |
case 0x56: /* LD D,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
Sethreg(DE, GetBYTE(HL)); | |
break; | |
case 0x57: /* LD D,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & 0xff) | (AF & ~0xff); | |
break; | |
case 0x58: /* LD E,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & ~0xff) | ((BC >> 8) & 0xff); | |
break; | |
case 0x59: /* LD E,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & ~0xff) | (BC & 0xff); | |
break; | |
case 0x5a: /* LD E,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & ~0xff) | ((DE >> 8) & 0xff); | |
break; | |
case 0x5b: /* LD E,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x5c: /* LD E,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & ~0xff) | ((HL >> 8) & 0xff); | |
break; | |
case 0x5d: /* LD E,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & ~0xff) | (HL & 0xff); | |
break; | |
case 0x5e: /* LD E,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
Setlreg(DE, GetBYTE(HL)); | |
break; | |
case 0x5f: /* LD E,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
DE = (DE & ~0xff) | ((AF >> 8) & 0xff); | |
break; | |
case 0x60: /* LD H,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & 0xff) | (BC & ~0xff); | |
break; | |
case 0x61: /* LD H,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & 0xff) | ((BC & 0xff) << 8); | |
break; | |
case 0x62: /* LD H,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & 0xff) | (DE & ~0xff); | |
break; | |
case 0x63: /* LD H,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & 0xff) | ((DE & 0xff) << 8); | |
break; | |
case 0x64: /* LD H,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x65: /* LD H,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & 0xff) | ((HL & 0xff) << 8); | |
break; | |
case 0x66: /* LD H,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
Sethreg(HL, GetBYTE(HL)); | |
break; | |
case 0x67: /* LD H,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & 0xff) | (AF & ~0xff); | |
break; | |
case 0x68: /* LD L,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & ~0xff) | ((BC >> 8) & 0xff); | |
break; | |
case 0x69: /* LD L,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & ~0xff) | (BC & 0xff); | |
break; | |
case 0x6a: /* LD L,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & ~0xff) | ((DE >> 8) & 0xff); | |
break; | |
case 0x6b: /* LD L,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & ~0xff) | (DE & 0xff); | |
break; | |
case 0x6c: /* LD L,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & ~0xff) | ((HL >> 8) & 0xff); | |
break; | |
case 0x6d: /* LD L,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x6e: /* LD L,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
Setlreg(HL, GetBYTE(HL)); | |
break; | |
case 0x6f: /* LD L,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
HL = (HL & ~0xff) | ((AF >> 8) & 0xff); | |
break; | |
case 0x70: /* LD (HL),B */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
PutBYTE(HL, hreg(BC)); | |
break; | |
case 0x71: /* LD (HL),C */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
PutBYTE(HL, lreg(BC)); | |
break; | |
case 0x72: /* LD (HL),D */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
PutBYTE(HL, hreg(DE)); | |
break; | |
case 0x73: /* LD (HL),E */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
PutBYTE(HL, lreg(DE)); | |
break; | |
case 0x74: /* LD (HL),H */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
PutBYTE(HL, hreg(HL)); | |
break; | |
case 0x75: /* LD (HL),L */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
PutBYTE(HL, lreg(HL)); | |
break; | |
case 0x76: /* HALT */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
reason = STOP_HALT; | |
PC--; | |
goto end_decode; | |
case 0x77: /* LD (HL),A */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
PutBYTE(HL, hreg(AF)); | |
break; | |
case 0x78: /* LD A,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & 0xff) | (BC & ~0xff); | |
break; | |
case 0x79: /* LD A,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & 0xff) | ((BC & 0xff) << 8); | |
break; | |
case 0x7a: /* LD A,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & 0xff) | (DE & ~0xff); | |
break; | |
case 0x7b: /* LD A,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & 0xff) | ((DE & 0xff) << 8); | |
break; | |
case 0x7c: /* LD A,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & 0xff) | (HL & ~0xff); | |
break; | |
case 0x7d: /* LD A,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & 0xff) | ((HL & 0xff) << 8); | |
break; | |
case 0x7e: /* LD A,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
Sethreg(AF, GetBYTE(HL)); | |
break; | |
case 0x7f: /* LD A,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x80: /* ADD A,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(BC); | |
acu = hreg(AF); | |
sum = acu + temp; | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x81: /* ADD A,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(BC); | |
acu = hreg(AF); | |
sum = acu + temp; | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x82: /* ADD A,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(DE); | |
acu = hreg(AF); | |
sum = acu + temp; | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x83: /* ADD A,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(DE); | |
acu = hreg(AF); | |
sum = acu + temp; | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x84: /* ADD A,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(HL); | |
acu = hreg(AF); | |
sum = acu + temp; | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x85: /* ADD A,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(HL); | |
acu = hreg(AF); | |
sum = acu + temp; | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x86: /* ADD A,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
temp = GetBYTE(HL); | |
acu = hreg(AF); | |
sum = acu + temp; | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x87: /* ADD A,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
cbits = 2 * hreg(AF); | |
AF = cbitsDup8Table[cbits] | (SetPVS(cbits)); | |
break; | |
case 0x88: /* ADC A,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(BC); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x89: /* ADC A,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(BC); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x8a: /* ADC A,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(DE); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x8b: /* ADC A,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(DE); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x8c: /* ADC A,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(HL); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x8d: /* ADC A,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(HL); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x8e: /* ADC A,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
temp = GetBYTE(HL); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0x8f: /* ADC A,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
cbits = 2 * hreg(AF) + TSTFLAG(C); | |
AF = cbitsDup8Table[cbits] | (SetPVS(cbits)); | |
break; | |
case 0x90: /* SUB B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(BC); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x91: /* SUB C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(BC); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x92: /* SUB D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(DE); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x93: /* SUB E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(DE); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x94: /* SUB H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(HL); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x95: /* SUB L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(HL); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x96: /* SUB (HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
temp = GetBYTE(HL); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x97: /* SUB A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = cpu_unit.flags & UNIT_CHIP ? 0x42 : 0x46; | |
break; | |
case 0x98: /* SBC A,B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(BC); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x99: /* SBC A,C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(BC); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x9a: /* SBC A,D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(DE); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x9b: /* SBC A,E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(DE); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x9c: /* SBC A,H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(HL); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x9d: /* SBC A,L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(HL); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x9e: /* SBC A,(HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
temp = GetBYTE(HL); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0x9f: /* SBC A,A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
cbits = -TSTFLAG(C); | |
AF = subTable[cbits & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPVS(cbits)); | |
break; | |
case 0xa0: /* AND B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF & BC) >> 8) & 0xff]; | |
break; | |
case 0xa1: /* AND C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF >> 8) & BC) & 0xff]; | |
break; | |
case 0xa2: /* AND D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF & DE) >> 8) & 0xff]; | |
break; | |
case 0xa3: /* AND E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF >> 8) & DE) & 0xff]; | |
break; | |
case 0xa4: /* AND H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF & HL) >> 8) & 0xff]; | |
break; | |
case 0xa5: /* AND L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF >> 8) & HL) & 0xff]; | |
break; | |
case 0xa6: /* AND (HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
AF = andTable[((AF >> 8) & GetBYTE(HL)) & 0xff]; | |
break; | |
case 0xa7: /* AND A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[(AF >> 8) & 0xff]; | |
break; | |
case 0xa8: /* XOR B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF ^ BC) >> 8) & 0xff]; | |
break; | |
case 0xa9: /* XOR C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) ^ BC) & 0xff]; | |
break; | |
case 0xaa: /* XOR D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF ^ DE) >> 8) & 0xff]; | |
break; | |
case 0xab: /* XOR E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) ^ DE) & 0xff]; | |
break; | |
case 0xac: /* XOR H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF ^ HL) >> 8) & 0xff]; | |
break; | |
case 0xad: /* XOR L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) ^ HL) & 0xff]; | |
break; | |
case 0xae: /* XOR (HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
AF = xororTable[((AF >> 8) ^ GetBYTE(HL)) & 0xff]; | |
break; | |
case 0xaf: /* XOR A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = 0x44; | |
break; | |
case 0xb0: /* OR B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF | BC) >> 8) & 0xff]; | |
break; | |
case 0xb1: /* OR C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) | BC) & 0xff]; | |
break; | |
case 0xb2: /* OR D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF | DE) >> 8) & 0xff]; | |
break; | |
case 0xb3: /* OR E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) | DE) & 0xff]; | |
break; | |
case 0xb4: /* OR H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF | HL) >> 8) & 0xff]; | |
break; | |
case 0xb5: /* OR L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) | HL) & 0xff]; | |
break; | |
case 0xb6: /* OR (HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
AF = xororTable[((AF >> 8) | GetBYTE(HL)) & 0xff]; | |
break; | |
case 0xb7: /* OR A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[(AF >> 8) & 0xff]; | |
break; | |
case 0xb8: /* CP B */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(BC); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
(SetPV) | cbits2Table[cbits & 0x1ff]; | |
break; | |
case 0xb9: /* CP C */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(BC); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
(SetPV) | cbits2Table[cbits & 0x1ff]; | |
break; | |
case 0xba: /* CP D */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(DE); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
(SetPV) | cbits2Table[cbits & 0x1ff]; | |
break; | |
case 0xbb: /* CP E */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(DE); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
(SetPV) | cbits2Table[cbits & 0x1ff]; | |
break; | |
case 0xbc: /* CP H */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(HL); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
(SetPV) | cbits2Table[cbits & 0x1ff]; | |
break; | |
case 0xbd: /* CP L */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(HL); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
(SetPV) | cbits2Table[cbits & 0x1ff]; | |
break; | |
case 0xbe: /* CP (HL) */ | |
tStates += 7; | |
CheckBreakByte(HL); | |
temp = GetBYTE(HL); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
(SetPV) | cbits2Table[cbits & 0x1ff]; | |
break; | |
case 0xbf: /* CP A */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(AF, (hreg(AF) & 0x28) | (cpu_unit.flags & UNIT_CHIP ? 0x42 : 0x46)); | |
break; | |
case 0xc0: /* RET NZ */ | |
if (TSTFLAG(Z)) { | |
sim_brk_pend[0] = FALSE; | |
tStates += 5; | |
} | |
else { | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 1); | |
POP(PC); | |
tStates += 11; | |
} | |
break; | |
case 0xc1: /* POP BC */ | |
tStates += 10; | |
CheckBreakWord(SP); | |
POP(BC); | |
break; | |
case 0xc2: /* JP NZ,nnnn */ | |
sim_brk_pend[0] = FALSE; | |
JPC(!TSTFLAG(Z)); /* also updates tStates */ | |
break; | |
case 0xc3: /* JP nnnn */ | |
sim_brk_pend[0] = FALSE; | |
JPC(1); /* also updates tStates */ | |
break; | |
case 0xc4: /* CALL NZ,nnnn */ | |
CALLC(!TSTFLAG(Z)); /* also updates tStates */ | |
break; | |
case 0xc5: /* PUSH BC */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(BC); | |
break; | |
case 0xc6: /* ADD A,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
temp = RAM_pp(PC); | |
acu = hreg(AF); | |
sum = acu + temp; | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0xc7: /* RST 0 */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(PC); | |
PCQ_ENTRY(PC - 1); | |
PC = 0; | |
break; | |
case 0xc8: /* RET Z */ | |
if (TSTFLAG(Z)) { | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 1); | |
POP(PC); | |
tStates += 11; | |
} | |
else { | |
sim_brk_pend[0] = FALSE; | |
tStates += 5; | |
} | |
break; | |
case 0xc9: /* RET */ | |
tStates += 10; | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 1); | |
POP(PC); | |
break; | |
case 0xca: /* JP Z,nnnn */ | |
sim_brk_pend[0] = FALSE; | |
JPC(TSTFLAG(Z)); /* also updates tStates */ | |
break; | |
case 0xcb: /* CB prefix */ | |
checkCPU8080; | |
adr = HL; | |
switch ((op = GetBYTE(PC)) & 7) { | |
case 0: | |
sim_brk_pend[0] = tStateModifier = FALSE; | |
++PC; | |
acu = hreg(BC); | |
tStates += 8; | |
break; | |
case 1: | |
sim_brk_pend[0] = tStateModifier = FALSE; | |
++PC; | |
acu = lreg(BC); | |
tStates += 8; | |
break; | |
case 2: | |
sim_brk_pend[0] = tStateModifier = FALSE; | |
++PC; | |
acu = hreg(DE); | |
tStates += 8; | |
break; | |
case 3: | |
sim_brk_pend[0] = tStateModifier = FALSE; | |
++PC; | |
acu = lreg(DE); | |
tStates += 8; | |
break; | |
case 4: | |
sim_brk_pend[0] = tStateModifier = FALSE; | |
++PC; | |
acu = hreg(HL); | |
tStates += 8; | |
break; | |
case 5: | |
sim_brk_pend[0] = tStateModifier = FALSE; | |
++PC; | |
acu = lreg(HL); | |
tStates += 8; | |
break; | |
case 6: | |
CheckBreakByte(adr); | |
++PC; | |
acu = GetBYTE(adr); | |
tStateModifier = TRUE; | |
tStates += 15; | |
break; | |
case 7: | |
sim_brk_pend[0] = tStateModifier = FALSE; | |
++PC; | |
acu = hreg(AF); | |
tStates += 8; | |
break; | |
} | |
switch (op & 0xc0) { | |
case 0x00: /* shift/rotate */ | |
switch (op & 0x38) { | |
case 0x00: /* RLC */ | |
temp = (acu << 1) | (acu >> 7); | |
cbits = temp & 1; | |
goto cbshflg1; | |
case 0x08: /* RRC */ | |
temp = (acu >> 1) | (acu << 7); | |
cbits = temp & 0x80; | |
goto cbshflg1; | |
case 0x10: /* RL */ | |
temp = (acu << 1) | TSTFLAG(C); | |
cbits = acu & 0x80; | |
goto cbshflg1; | |
case 0x18: /* RR */ | |
temp = (acu >> 1) | (TSTFLAG(C) << 7); | |
cbits = acu & 1; | |
goto cbshflg1; | |
case 0x20: /* SLA */ | |
temp = acu << 1; | |
cbits = acu & 0x80; | |
goto cbshflg1; | |
case 0x28: /* SRA */ | |
temp = (acu >> 1) | (acu & 0x80); | |
cbits = acu & 1; | |
goto cbshflg1; | |
case 0x30: /* SLIA */ | |
temp = (acu << 1) | 1; | |
cbits = acu & 0x80; | |
goto cbshflg1; | |
case 0x38: /* SRL */ | |
temp = acu >> 1; | |
cbits = acu & 1; | |
cbshflg1: | |
AF = (AF & ~0xff) | rotateShiftTable[temp & 0xff] | !!cbits; | |
} | |
break; | |
case 0x40: /* BIT */ | |
if (tStateModifier) { | |
tStates -= 3; | |
} | |
if (acu & (1 << ((op >> 3) & 7))) { | |
AF = (AF & ~0xfe) | 0x10 | (((op & 0x38) == 0x38) << 7); | |
} | |
else { | |
AF = (AF & ~0xfe) | 0x54; | |
} | |
if ((op & 7) != 6) { | |
AF |= (acu & 0x28); | |
} | |
temp = acu; | |
break; | |
case 0x80: /* RES */ | |
temp = acu & ~(1 << ((op >> 3) & 7)); | |
break; | |
case 0xc0: /* SET */ | |
temp = acu | (1 << ((op >> 3) & 7)); | |
break; | |
} | |
switch (op & 7) { | |
case 0: | |
Sethreg(BC, temp); | |
break; | |
case 1: | |
Setlreg(BC, temp); | |
break; | |
case 2: | |
Sethreg(DE, temp); | |
break; | |
case 3: | |
Setlreg(DE, temp); | |
break; | |
case 4: | |
Sethreg(HL, temp); | |
break; | |
case 5: | |
Setlreg(HL, temp); | |
break; | |
case 6: | |
PutBYTE(adr, temp); | |
break; | |
case 7: | |
Sethreg(AF, temp); | |
break; | |
} | |
break; | |
case 0xcc: /* CALL Z,nnnn */ | |
CALLC(TSTFLAG(Z)); /* also updates tStates */ | |
break; | |
case 0xcd: /* CALL nnnn */ | |
CALLC(1); /* also updates tStates */ | |
break; | |
case 0xce: /* ADC A,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
temp = RAM_pp(PC); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = addTable[sum] | cbitsTable[cbits] | (SetPV); | |
break; | |
case 0xcf: /* RST 8 */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(PC); | |
PCQ_ENTRY(PC - 1); | |
PC = 8; | |
break; | |
case 0xd0: /* RET NC */ | |
if (TSTFLAG(C)) { | |
sim_brk_pend[0] = FALSE; | |
tStates += 5; | |
} | |
else { | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 1); | |
POP(PC); | |
tStates += 11; | |
} | |
break; | |
case 0xd1: /* POP DE */ | |
tStates += 10; | |
CheckBreakWord(SP); | |
POP(DE); | |
break; | |
case 0xd2: /* JP NC,nnnn */ | |
sim_brk_pend[0] = FALSE; | |
JPC(!TSTFLAG(C)); /* also updates tStates */ | |
break; | |
case 0xd3: /* OUT (nn),A */ | |
tStates += 11; | |
sim_brk_pend[0] = FALSE; | |
out(RAM_pp(PC), hreg(AF)); | |
break; | |
case 0xd4: /* CALL NC,nnnn */ | |
CALLC(!TSTFLAG(C)); /* also updates tStates */ | |
break; | |
case 0xd5: /* PUSH DE */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(DE); | |
break; | |
case 0xd6: /* SUB nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
temp = RAM_pp(PC); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0xd7: /* RST 10H */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(PC); | |
PCQ_ENTRY(PC - 1); | |
PC = 0x10; | |
break; | |
case 0xd8: /* RET C */ | |
if (TSTFLAG(C)) { | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 1); | |
POP(PC); | |
tStates += 11; | |
} | |
else { | |
sim_brk_pend[0] = FALSE; | |
tStates += 5; | |
} | |
break; | |
case 0xd9: /* EXX */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
checkCPU8080; | |
temp = BC; | |
BC = BC1_S; | |
BC1_S = temp; | |
temp = DE; | |
DE = DE1_S; | |
DE1_S = temp; | |
temp = HL; | |
HL = HL1_S; | |
HL1_S = temp; | |
break; | |
case 0xda: /* JP C,nnnn */ | |
sim_brk_pend[0] = FALSE; | |
JPC(TSTFLAG(C)); /* also updates tStates */ | |
break; | |
case 0xdb: /* IN A,(nn) */ | |
tStates += 11; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(AF, in(RAM_pp(PC))); | |
break; | |
case 0xdc: /* CALL C,nnnn */ | |
CALLC(TSTFLAG(C)); /* also updates tStates */ | |
break; | |
case 0xdd: /* DD prefix */ | |
checkCPU8080; | |
switch (op = RAM_pp(PC)) { | |
case 0x09: /* ADD IX,BC */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
IX &= ADDRMASK; | |
BC &= ADDRMASK; | |
sum = IX + BC; | |
AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IX ^ BC ^ sum) >> 8]; | |
IX = sum; | |
break; | |
case 0x19: /* ADD IX,DE */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
IX &= ADDRMASK; | |
DE &= ADDRMASK; | |
sum = IX + DE; | |
AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IX ^ DE ^ sum) >> 8]; | |
IX = sum; | |
break; | |
case 0x21: /* LD IX,nnnn */ | |
tStates += 14; | |
sim_brk_pend[0] = FALSE; | |
IX = GetWORD(PC); | |
PC += 2; | |
break; | |
case 0x22: /* LD (nnnn),IX */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
PutWORD(temp, IX); | |
PC += 2; | |
break; | |
case 0x23: /* INC IX */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
++IX; | |
break; | |
case 0x24: /* INC IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
IX += 0x100; | |
AF = (AF & ~0xfe) | incZ80Table[hreg(IX)]; | |
break; | |
case 0x25: /* DEC IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
IX -= 0x100; | |
AF = (AF & ~0xfe) | decZ80Table[hreg(IX)]; | |
break; | |
case 0x26: /* LD IXH,nn */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IX, RAM_pp(PC)); | |
break; | |
case 0x29: /* ADD IX,IX */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
IX &= ADDRMASK; | |
sum = IX + IX; | |
AF = (AF & ~0x3b) | cbitsDup16Table[sum >> 8]; | |
IX = sum; | |
break; | |
case 0x2a: /* LD IX,(nnnn) */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
IX = GetWORD(temp); | |
PC += 2; | |
break; | |
case 0x2b: /* DEC IX */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
--IX; | |
break; | |
case 0x2c: /* INC IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IX) + 1; | |
Setlreg(IX, temp); | |
AF = (AF & ~0xfe) | incZ80Table[temp]; | |
break; | |
case 0x2d: /* DEC IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IX) - 1; | |
Setlreg(IX, temp); | |
AF = (AF & ~0xfe) | decZ80Table[temp & 0xff]; | |
break; | |
case 0x2e: /* LD IXL,nn */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IX, RAM_pp(PC)); | |
break; | |
case 0x34: /* INC (IX+dd) */ | |
tStates += 23; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr) + 1; | |
PutBYTE(adr, temp); | |
AF = (AF & ~0xfe) | incZ80Table[temp]; | |
break; | |
case 0x35: /* DEC (IX+dd) */ | |
tStates += 23; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr) - 1; | |
PutBYTE(adr, temp); | |
AF = (AF & ~0xfe) | decZ80Table[temp & 0xff]; | |
break; | |
case 0x36: /* LD (IX+dd),nn */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, RAM_pp(PC)); | |
break; | |
case 0x39: /* ADD IX,SP */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
IX &= ADDRMASK; | |
SP &= ADDRMASK; | |
sum = IX + SP; | |
AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IX ^ SP ^ sum) >> 8]; | |
IX = sum; | |
break; | |
case 0x44: /* LD B,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(BC, hreg(IX)); | |
break; | |
case 0x45: /* LD B,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(BC, lreg(IX)); | |
break; | |
case 0x46: /* LD B,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Sethreg(BC, GetBYTE(adr)); | |
break; | |
case 0x4c: /* LD C,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(BC, hreg(IX)); | |
break; | |
case 0x4d: /* LD C,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(BC, lreg(IX)); | |
break; | |
case 0x4e: /* LD C,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Setlreg(BC, GetBYTE(adr)); | |
break; | |
case 0x54: /* LD D,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(DE, hreg(IX)); | |
break; | |
case 0x55: /* LD D,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(DE, lreg(IX)); | |
break; | |
case 0x56: /* LD D,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Sethreg(DE, GetBYTE(adr)); | |
break; | |
case 0x5c: /* LD E,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(DE, hreg(IX)); | |
break; | |
case 0x5d: /* LD E,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(DE, lreg(IX)); | |
break; | |
case 0x5e: /* LD E,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Setlreg(DE, GetBYTE(adr)); | |
break; | |
case 0x60: /* LD IXH,B */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IX, hreg(BC)); | |
break; | |
case 0x61: /* LD IXH,C */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IX, lreg(BC)); | |
break; | |
case 0x62: /* LD IXH,D */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IX, hreg(DE)); | |
break; | |
case 0x63: /* LD IXH,E */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IX, lreg(DE)); | |
break; | |
case 0x64: /* LD IXH,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x65: /* LD IXH,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IX, lreg(IX)); | |
break; | |
case 0x66: /* LD H,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Sethreg(HL, GetBYTE(adr)); | |
break; | |
case 0x67: /* LD IXH,A */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IX, hreg(AF)); | |
break; | |
case 0x68: /* LD IXL,B */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IX, hreg(BC)); | |
break; | |
case 0x69: /* LD IXL,C */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IX, lreg(BC)); | |
break; | |
case 0x6a: /* LD IXL,D */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IX, hreg(DE)); | |
break; | |
case 0x6b: /* LD IXL,E */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IX, lreg(DE)); | |
break; | |
case 0x6c: /* LD IXL,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IX, hreg(IX)); | |
break; | |
case 0x6d: /* LD IXL,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x6e: /* LD L,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Setlreg(HL, GetBYTE(adr)); | |
break; | |
case 0x6f: /* LD IXL,A */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IX, hreg(AF)); | |
break; | |
case 0x70: /* LD (IX+dd),B */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, hreg(BC)); | |
break; | |
case 0x71: /* LD (IX+dd),C */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, lreg(BC)); | |
break; | |
case 0x72: /* LD (IX+dd),D */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, hreg(DE)); | |
break; | |
case 0x73: /* LD (IX+dd),E */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, lreg(DE)); | |
break; | |
case 0x74: /* LD (IX+dd),H */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, hreg(HL)); | |
break; | |
case 0x75: /* LD (IX+dd),L */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, lreg(HL)); | |
break; | |
case 0x77: /* LD (IX+dd),A */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, hreg(AF)); | |
break; | |
case 0x7c: /* LD A,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(AF, hreg(IX)); | |
break; | |
case 0x7d: /* LD A,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(AF, lreg(IX)); | |
break; | |
case 0x7e: /* LD A,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Sethreg(AF, GetBYTE(adr)); | |
break; | |
case 0x84: /* ADD A,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(IX); | |
acu = hreg(AF); | |
sum = acu + temp; | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x85: /* ADD A,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IX); | |
acu = hreg(AF); | |
sum = acu + temp; | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x86: /* ADD A,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
acu = hreg(AF); | |
sum = acu + temp; | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x8c: /* ADC A,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(IX); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x8d: /* ADC A,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IX); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x8e: /* ADC A,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x96: /* SUB (IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
acu = hreg(AF); | |
sum = acu - temp; | |
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0x94: /* SUB IXH */ | |
SETFLAG(C, 0);/* fall through, a bit less efficient but smaller code */ | |
case 0x9c: /* SBC A,IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(IX); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0x95: /* SUB IXL */ | |
SETFLAG(C, 0);/* fall through, a bit less efficient but smaller code */ | |
case 0x9d: /* SBC A,IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IX); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0x9e: /* SBC A,(IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0xa4: /* AND IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF & IX) >> 8) & 0xff]; | |
break; | |
case 0xa5: /* AND IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF >> 8) & IX) & 0xff]; | |
break; | |
case 0xa6: /* AND (IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
AF = andTable[((AF >> 8) & GetBYTE(adr)) & 0xff]; | |
break; | |
case 0xac: /* XOR IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF ^ IX) >> 8) & 0xff]; | |
break; | |
case 0xad: /* XOR IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) ^ IX) & 0xff]; | |
break; | |
case 0xae: /* XOR (IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
AF = xororTable[((AF >> 8) ^ GetBYTE(adr)) & 0xff]; | |
break; | |
case 0xb4: /* OR IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF | IX) >> 8) & 0xff]; | |
break; | |
case 0xb5: /* OR IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) | IX) & 0xff]; | |
break; | |
case 0xb6: /* OR (IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
AF = xororTable[((AF >> 8) | GetBYTE(adr)) & 0xff]; | |
break; | |
case 0xbc: /* CP IXH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(IX); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0xbd: /* CP IXL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IX); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0xbe: /* CP (IX+dd) */ | |
tStates += 19; | |
adr = IX + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0xcb: /* CB prefix */ | |
adr = IX + (int8) RAM_pp(PC); | |
switch ((op = GetBYTE(PC)) & 7) { | |
case 0: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = hreg(BC); | |
break; | |
case 1: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = lreg(BC); | |
break; | |
case 2: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = hreg(DE); | |
break; | |
case 3: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = lreg(DE); | |
break; | |
case 4: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = hreg(HL); | |
break; | |
case 5: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = lreg(HL); | |
break; | |
case 6: | |
CheckBreakByte(adr); | |
++PC; | |
acu = GetBYTE(adr); | |
break; | |
case 7: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = hreg(AF); | |
break; | |
} | |
switch (op & 0xc0) { | |
case 0x00: /* shift/rotate */ | |
tStates += 23; | |
switch (op & 0x38) { | |
case 0x00: /* RLC */ | |
temp = (acu << 1) | (acu >> 7); | |
cbits = temp & 1; | |
goto cbshflg2; | |
case 0x08: /* RRC */ | |
temp = (acu >> 1) | (acu << 7); | |
cbits = temp & 0x80; | |
goto cbshflg2; | |
case 0x10: /* RL */ | |
temp = (acu << 1) | TSTFLAG(C); | |
cbits = acu & 0x80; | |
goto cbshflg2; | |
case 0x18: /* RR */ | |
temp = (acu >> 1) | (TSTFLAG(C) << 7); | |
cbits = acu & 1; | |
goto cbshflg2; | |
case 0x20: /* SLA */ | |
temp = acu << 1; | |
cbits = acu & 0x80; | |
goto cbshflg2; | |
case 0x28: /* SRA */ | |
temp = (acu >> 1) | (acu & 0x80); | |
cbits = acu & 1; | |
goto cbshflg2; | |
case 0x30: /* SLIA */ | |
temp = (acu << 1) | 1; | |
cbits = acu & 0x80; | |
goto cbshflg2; | |
case 0x38: /* SRL */ | |
temp = acu >> 1; | |
cbits = acu & 1; | |
cbshflg2: | |
AF = (AF & ~0xff) | rotateShiftTable[temp & 0xff] | !!cbits; | |
} | |
break; | |
case 0x40: /* BIT */ | |
tStates += 20; | |
if (acu & (1 << ((op >> 3) & 7))) { | |
AF = (AF & ~0xfe) | 0x10 | (((op & 0x38) == 0x38) << 7); | |
} | |
else { | |
AF = (AF & ~0xfe) | 0x54; | |
} | |
if ((op & 7) != 6) { | |
AF |= (acu & 0x28); | |
} | |
temp = acu; | |
break; | |
case 0x80: /* RES */ | |
tStates += 23; | |
temp = acu & ~(1 << ((op >> 3) & 7)); | |
break; | |
case 0xc0: /* SET */ | |
tStates += 23; | |
temp = acu | (1 << ((op >> 3) & 7)); | |
break; | |
} | |
switch (op & 7) { | |
case 0: | |
Sethreg(BC, temp); | |
break; | |
case 1: | |
Setlreg(BC, temp); | |
break; | |
case 2: | |
Sethreg(DE, temp); | |
break; | |
case 3: | |
Setlreg(DE, temp); | |
break; | |
case 4: | |
Sethreg(HL, temp); | |
break; | |
case 5: | |
Setlreg(HL, temp); | |
break; | |
case 6: | |
PutBYTE(adr, temp); | |
break; | |
case 7: | |
Sethreg(AF, temp); | |
break; | |
} | |
break; | |
case 0xe1: /* POP IX */ | |
tStates += 14; | |
CheckBreakWord(SP); | |
POP(IX); | |
break; | |
case 0xe3: /* EX (SP),IX */ | |
tStates += 23; | |
CheckBreakWord(SP); | |
temp = IX; | |
POP(IX); | |
PUSH(temp); | |
break; | |
case 0xe5: /* PUSH IX */ | |
tStates += 15; | |
CheckBreakWord(SP - 2); | |
PUSH(IX); | |
break; | |
case 0xe9: /* JP (IX) */ | |
tStates += 8; | |
sim_brk_pend[0] = FALSE; | |
PCQ_ENTRY(PC - 2); | |
PC = IX; | |
break; | |
case 0xf9: /* LD SP,IX */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
SP = IX; | |
break; | |
default: /* ignore DD */ | |
sim_brk_pend[0] = FALSE; | |
checkCPUZ80; | |
PC--; | |
} | |
break; | |
case 0xde: /* SBC A,nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
temp = RAM_pp(PC); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
cbits = acu ^ temp ^ sum; | |
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SetPV); | |
break; | |
case 0xdf: /* RST 18H */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(PC); | |
PCQ_ENTRY(PC - 1); | |
PC = 0x18; | |
break; | |
case 0xe0: /* RET PO */ | |
if (TSTFLAG(P)) { | |
sim_brk_pend[0] = FALSE; | |
tStates += 5; | |
} | |
else { | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 1); | |
POP(PC); | |
tStates += 11; | |
} | |
break; | |
case 0xe1: /* POP HL */ | |
tStates += 10; | |
CheckBreakWord(SP); | |
POP(HL); | |
break; | |
case 0xe2: /* JP PO,nnnn */ | |
sim_brk_pend[0] = FALSE; | |
JPC(!TSTFLAG(P)); /* also updates tStates */ | |
break; | |
case 0xe3: /* EX (SP),HL */ | |
tStates += 19; | |
CheckBreakWord(SP); | |
temp = HL; | |
POP(HL); | |
PUSH(temp); | |
break; | |
case 0xe4: /* CALL PO,nnnn */ | |
CALLC(!TSTFLAG(P)); /* also updates tStates */ | |
break; | |
case 0xe5: /* PUSH HL */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(HL); | |
break; | |
case 0xe6: /* AND nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF >> 8) & RAM_pp(PC)) & 0xff]; | |
break; | |
case 0xe7: /* RST 20H */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(PC); | |
PCQ_ENTRY(PC - 1); | |
PC = 0x20; | |
break; | |
case 0xe8: /* RET PE */ | |
if (TSTFLAG(P)) { | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 1); | |
POP(PC); | |
tStates += 11; | |
} | |
else { | |
sim_brk_pend[0] = FALSE; | |
tStates += 5; | |
} | |
break; | |
case 0xe9: /* JP (HL) */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
PCQ_ENTRY(PC - 1); | |
PC = HL; | |
break; | |
case 0xea: /* JP PE,nnnn */ | |
sim_brk_pend[0] = FALSE; | |
JPC(TSTFLAG(P)); /* also updates tStates */ | |
break; | |
case 0xeb: /* EX DE,HL */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
temp = HL; | |
HL = DE; | |
DE = temp; | |
break; | |
case 0xec: /* CALL PE,nnnn */ | |
CALLC(TSTFLAG(P)); /* also updates tStates */ | |
break; | |
case 0xed: /* ED prefix */ | |
checkCPU8080; | |
switch (op = RAM_pp(PC)) { | |
case 0x40: /* IN B,(C) */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
temp = in(lreg(BC)); | |
Sethreg(BC, temp); | |
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff]; | |
break; | |
case 0x41: /* OUT (C),B */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
out(lreg(BC), hreg(BC)); | |
break; | |
case 0x42: /* SBC HL,BC */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
BC &= ADDRMASK; | |
sum = HL - BC - TSTFLAG(C); | |
AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) | | |
cbits2Z80Table[((HL ^ BC ^ sum) >> 8) & 0x1ff]; | |
HL = sum; | |
break; | |
case 0x43: /* LD (nnnn),BC */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
PutWORD(temp, BC); | |
PC += 2; | |
break; | |
case 0x44: /* NEG */ | |
case 0x4C: /* NEG, unofficial */ | |
case 0x54: /* NEG, unofficial */ | |
case 0x5C: /* NEG, unofficial */ | |
case 0x64: /* NEG, unofficial */ | |
case 0x6C: /* NEG, unofficial */ | |
case 0x74: /* NEG, unofficial */ | |
case 0x7C: /* NEG, unofficial */ | |
tStates += 8; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(AF); | |
AF = ((~(AF & 0xff00) + 1) & 0xff00); /* AF = (-(AF & 0xff00) & 0xff00); */ | |
AF |= ((AF >> 8) & 0xa8) | (((AF & 0xff00) == 0) << 6) | negTable[temp]; | |
break; | |
case 0x45: /* RETN */ | |
case 0x55: /* RETN, unofficial */ | |
case 0x5D: /* RETN, unofficial */ | |
case 0x65: /* RETN, unofficial */ | |
case 0x6D: /* RETN, unofficial */ | |
case 0x75: /* RETN, unofficial */ | |
case 0x7D: /* RETN, unofficial */ | |
tStates += 14; | |
IFF_S |= IFF_S >> 1; | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 2); | |
POP(PC); | |
break; | |
case 0x46: /* IM 0 */ | |
tStates += 8; | |
sim_brk_pend[0] = FALSE; | |
/* interrupt mode 0 */ | |
break; | |
case 0x47: /* LD I,A */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
IR_S = (IR_S & 0xff) | (AF & ~0xff); | |
break; | |
case 0x48: /* IN C,(C) */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
temp = in(lreg(BC)); | |
Setlreg(BC, temp); | |
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff]; | |
break; | |
case 0x49: /* OUT (C),C */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
out(lreg(BC), lreg(BC)); | |
break; | |
case 0x4a: /* ADC HL,BC */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
BC &= ADDRMASK; | |
sum = HL + BC + TSTFLAG(C); | |
AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) | | |
cbitsZ80Table[(HL ^ BC ^ sum) >> 8]; | |
HL = sum; | |
break; | |
case 0x4b: /* LD BC,(nnnn) */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
BC = GetWORD(temp); | |
PC += 2; | |
break; | |
case 0x4d: /* RETI */ | |
tStates += 14; | |
IFF_S |= IFF_S >> 1; | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 2); | |
POP(PC); | |
break; | |
case 0x4f: /* LD R,A */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
IR_S = (IR_S & ~0xff) | ((AF >> 8) & 0xff); | |
break; | |
case 0x50: /* IN D,(C) */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
temp = in(lreg(BC)); | |
Sethreg(DE, temp); | |
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff]; | |
break; | |
case 0x51: /* OUT (C),D */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
out(lreg(BC), hreg(DE)); | |
break; | |
case 0x52: /* SBC HL,DE */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
DE &= ADDRMASK; | |
sum = HL - DE - TSTFLAG(C); | |
AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) | | |
cbits2Z80Table[((HL ^ DE ^ sum) >> 8) & 0x1ff]; | |
HL = sum; | |
break; | |
case 0x53: /* LD (nnnn),DE */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
PutWORD(temp, DE); | |
PC += 2; | |
break; | |
case 0x56: /* IM 1 */ | |
tStates += 8; | |
sim_brk_pend[0] = FALSE; | |
/* interrupt mode 1 */ | |
break; | |
case 0x57: /* LD A,I */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & 0x29) | (IR_S & ~0xff) | ((IR_S >> 8) & 0x80) | (((IR_S & ~0xff) == 0) << 6) | ((IFF_S & 2) << 1); | |
break; | |
case 0x58: /* IN E,(C) */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
temp = in(lreg(BC)); | |
Setlreg(DE, temp); | |
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff]; | |
break; | |
case 0x59: /* OUT (C),E */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
out(lreg(BC), lreg(DE)); | |
break; | |
case 0x5a: /* ADC HL,DE */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
DE &= ADDRMASK; | |
sum = HL + DE + TSTFLAG(C); | |
AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) | | |
cbitsZ80Table[(HL ^ DE ^ sum) >> 8]; | |
HL = sum; | |
break; | |
case 0x5b: /* LD DE,(nnnn) */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
DE = GetWORD(temp); | |
PC += 2; | |
break; | |
case 0x5e: /* IM 2 */ | |
tStates += 8; | |
sim_brk_pend[0] = FALSE; | |
/* interrupt mode 2 */ | |
break; | |
case 0x5f: /* LD A,R */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = (AF & 0x29) | ((IR_S & 0xff) << 8) | (IR_S & 0x80) | | |
(((IR_S & 0xff) == 0) << 6) | ((IFF_S & 2) << 1); | |
break; | |
case 0x60: /* IN H,(C) */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
temp = in(lreg(BC)); | |
Sethreg(HL, temp); | |
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff]; | |
break; | |
case 0x61: /* OUT (C),H */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
out(lreg(BC), hreg(HL)); | |
break; | |
case 0x62: /* SBC HL,HL */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
sum = HL - HL - TSTFLAG(C); | |
AF = (AF & ~0xff) | (((sum & ADDRMASK) == 0) << 6) | | |
cbits2Z80DupTable[(sum >> 8) & 0x1ff]; | |
HL = sum; | |
break; | |
case 0x63: /* LD (nnnn),HL */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
PutWORD(temp, HL); | |
PC += 2; | |
break; | |
case 0x67: /* RRD */ | |
tStates += 18; | |
sim_brk_pend[0] = FALSE; | |
temp = GetBYTE(HL); | |
acu = hreg(AF); | |
PutBYTE(HL, hdig(temp) | (ldig(acu) << 4)); | |
AF = rrdrldTable[(acu & 0xf0) | ldig(temp)] | (AF & 1); | |
break; | |
case 0x68: /* IN L,(C) */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
temp = in(lreg(BC)); | |
Setlreg(HL, temp); | |
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff]; | |
break; | |
case 0x69: /* OUT (C),L */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
out(lreg(BC), lreg(HL)); | |
break; | |
case 0x6a: /* ADC HL,HL */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
sum = HL + HL + TSTFLAG(C); | |
AF = (AF & ~0xff) | (((sum & ADDRMASK) == 0) << 6) | | |
cbitsZ80DupTable[sum >> 8]; | |
HL = sum; | |
break; | |
case 0x6b: /* LD HL,(nnnn) */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
HL = GetWORD(temp); | |
PC += 2; | |
break; | |
case 0x6f: /* RLD */ | |
tStates += 18; | |
sim_brk_pend[0] = FALSE; | |
temp = GetBYTE(HL); | |
acu = hreg(AF); | |
PutBYTE(HL, (ldig(temp) << 4) | ldig(acu)); | |
AF = rrdrldTable[(acu & 0xf0) | hdig(temp)] | (AF & 1); | |
break; | |
case 0x70: /* IN (C) */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
temp = in(lreg(BC)); | |
Setlreg(temp, temp); | |
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff]; | |
break; | |
case 0x71: /* OUT (C),0 */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
out(lreg(BC), 0); | |
break; | |
case 0x72: /* SBC HL,SP */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
SP &= ADDRMASK; | |
sum = HL - SP - TSTFLAG(C); | |
AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) | | |
cbits2Z80Table[((HL ^ SP ^ sum) >> 8) & 0x1ff]; | |
HL = sum; | |
break; | |
case 0x73: /* LD (nnnn),SP */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
PutWORD(temp, SP); | |
PC += 2; | |
break; | |
case 0x78: /* IN A,(C) */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
temp = in(lreg(BC)); | |
Sethreg(AF, temp); | |
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff]; | |
break; | |
case 0x79: /* OUT (C),A */ | |
tStates += 12; | |
sim_brk_pend[0] = FALSE; | |
out(lreg(BC), hreg(AF)); | |
break; | |
case 0x7a: /* ADC HL,SP */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
HL &= ADDRMASK; | |
SP &= ADDRMASK; | |
sum = HL + SP + TSTFLAG(C); | |
AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) | | |
cbitsZ80Table[(HL ^ SP ^ sum) >> 8]; | |
HL = sum; | |
break; | |
case 0x7b: /* LD SP,(nnnn) */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
SP = GetWORD(temp); | |
PC += 2; | |
break; | |
case 0xa0: /* LDI */ | |
tStates += 16; | |
CheckBreakTwoBytes(HL, DE); | |
acu = RAM_pp(HL); | |
PutBYTE_pp(DE, acu); | |
acu += hreg(AF); | |
AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4) | | |
(((--BC & ADDRMASK) != 0) << 2); | |
break; | |
case 0xa1: /* CPI */ | |
tStates += 16; | |
CheckBreakByte(HL); | |
acu = hreg(AF); | |
temp = RAM_pp(HL); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xfe) | (sum & 0x80) | (!(sum & 0xff) << 6) | | |
(((sum - ((cbits & 16) >> 4)) & 2) << 4) | (cbits & 16) | | |
((sum - ((cbits >> 4) & 1)) & 8) | | |
((--BC & ADDRMASK) != 0) << 2 | 2; | |
if ((sum & 15) == 8 && (cbits & 16) != 0) { | |
AF &= ~8; | |
} | |
break; | |
case 0xa2: /* INI */ | |
tStates += 16; | |
CheckBreakByte(HL); | |
PutBYTE(HL, in(lreg(BC))); | |
++HL; | |
SETFLAG(N, 1); | |
SETFLAG(P, (--BC & ADDRMASK) != 0); | |
break; | |
case 0xa3: /* OUTI */ | |
tStates += 16; | |
CheckBreakByte(HL); | |
out(lreg(BC), GetBYTE(HL)); | |
++HL; | |
SETFLAG(N, 1); | |
Sethreg(BC, lreg(BC) - 1); | |
SETFLAG(Z, lreg(BC) == 0); | |
break; | |
case 0xa8: /* LDD */ | |
tStates += 16; | |
CheckBreakTwoBytes(HL, DE); | |
acu = RAM_mm(HL); | |
PutBYTE_mm(DE, acu); | |
acu += hreg(AF); | |
AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4) | | |
(((--BC & ADDRMASK) != 0) << 2); | |
break; | |
case 0xa9: /* CPD */ | |
tStates += 16; | |
CheckBreakByte(HL); | |
acu = hreg(AF); | |
temp = RAM_mm(HL); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xfe) | (sum & 0x80) | (!(sum & 0xff) << 6) | | |
(((sum - ((cbits & 16) >> 4)) & 2) << 4) | (cbits & 16) | | |
((sum - ((cbits >> 4) & 1)) & 8) | | |
((--BC & ADDRMASK) != 0) << 2 | 2; | |
if ((sum & 15) == 8 && (cbits & 16) != 0) { | |
AF &= ~8; | |
} | |
break; | |
case 0xaa: /* IND */ | |
tStates += 16; | |
CheckBreakByte(HL); | |
PutBYTE(HL, in(lreg(BC))); | |
--HL; | |
SETFLAG(N, 1); | |
Sethreg(BC, lreg(BC) - 1); | |
SETFLAG(Z, lreg(BC) == 0); | |
break; | |
case 0xab: /* OUTD */ | |
tStates += 16; | |
CheckBreakByte(HL); | |
out(lreg(BC), GetBYTE(HL)); | |
--HL; | |
SETFLAG(N, 1); | |
Sethreg(BC, lreg(BC) - 1); | |
SETFLAG(Z, lreg(BC) == 0); | |
break; | |
case 0xb0: /* LDIR */ | |
tStates -= 5; | |
acu = hreg(AF); | |
BC &= ADDRMASK; | |
do { | |
tStates += 21; | |
CheckBreakTwoBytes(HL, DE); | |
acu = RAM_pp(HL); | |
PutBYTE_pp(DE, acu); | |
} while (--BC); | |
acu += hreg(AF); | |
AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4); | |
break; | |
case 0xb1: /* CPIR */ | |
tStates -= 5; | |
acu = hreg(AF); | |
BC &= ADDRMASK; | |
do { | |
tStates += 21; | |
CheckBreakByte(HL); | |
temp = RAM_pp(HL); | |
op = --BC != 0; | |
sum = acu - temp; | |
} while (op && sum != 0); | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xfe) | (sum & 0x80) | (!(sum & 0xff) << 6) | | |
(((sum - ((cbits & 16) >> 4)) & 2) << 4) | | |
(cbits & 16) | ((sum - ((cbits >> 4) & 1)) & 8) | | |
op << 2 | 2; | |
if ((sum & 15) == 8 && (cbits & 16) != 0) { | |
AF &= ~8; | |
} | |
break; | |
case 0xb2: /* INIR */ | |
tStates -= 5; | |
temp = hreg(BC); | |
do { | |
tStates += 21; | |
CheckBreakByte(HL); | |
PutBYTE(HL, in(lreg(BC))); | |
++HL; | |
} while (--temp); | |
Sethreg(BC, 0); | |
SETFLAG(N, 1); | |
SETFLAG(Z, 1); | |
break; | |
case 0xb3: /* OTIR */ | |
tStates -= 5; | |
temp = hreg(BC); | |
do { | |
tStates += 21; | |
CheckBreakByte(HL); | |
out(lreg(BC), GetBYTE(HL)); | |
++HL; | |
} while (--temp); | |
Sethreg(BC, 0); | |
SETFLAG(N, 1); | |
SETFLAG(Z, 1); | |
break; | |
case 0xb8: /* LDDR */ | |
tStates -= 5; | |
BC &= ADDRMASK; | |
do { | |
tStates += 21; | |
CheckBreakTwoBytes(HL, DE); | |
acu = RAM_mm(HL); | |
PutBYTE_mm(DE, acu); | |
} while (--BC); | |
acu += hreg(AF); | |
AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4); | |
break; | |
case 0xb9: /* CPDR */ | |
tStates -= 5; | |
acu = hreg(AF); | |
BC &= ADDRMASK; | |
do { | |
tStates += 21; | |
CheckBreakByte(HL); | |
temp = RAM_mm(HL); | |
op = --BC != 0; | |
sum = acu - temp; | |
} while (op && sum != 0); | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xfe) | (sum & 0x80) | (!(sum & 0xff) << 6) | | |
(((sum - ((cbits & 16) >> 4)) & 2) << 4) | | |
(cbits & 16) | ((sum - ((cbits >> 4) & 1)) & 8) | | |
op << 2 | 2; | |
if ((sum & 15) == 8 && (cbits & 16) != 0) { | |
AF &= ~8; | |
} | |
break; | |
case 0xba: /* INDR */ | |
tStates -= 5; | |
temp = hreg(BC); | |
do { | |
tStates += 21; | |
CheckBreakByte(HL); | |
PutBYTE(HL, in(lreg(BC))); | |
--HL; | |
} while (--temp); | |
Sethreg(BC, 0); | |
SETFLAG(N, 1); | |
SETFLAG(Z, 1); | |
break; | |
case 0xbb: /* OTDR */ | |
tStates -= 5; | |
temp = hreg(BC); | |
do { | |
tStates += 21; | |
CheckBreakByte(HL); | |
out(lreg(BC), GetBYTE(HL)); | |
--HL; | |
} while (--temp); | |
Sethreg(BC, 0); | |
SETFLAG(N, 1); | |
SETFLAG(Z, 1); | |
break; | |
default: /* ignore ED and following byte */ | |
sim_brk_pend[0] = FALSE; | |
checkCPUZ80; | |
} | |
break; | |
case 0xee: /* XOR nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) ^ RAM_pp(PC)) & 0xff]; | |
break; | |
case 0xef: /* RST 28H */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(PC); | |
PCQ_ENTRY(PC - 1); | |
PC = 0x28; | |
break; | |
case 0xf0: /* RET P */ | |
if (TSTFLAG(S)) { | |
sim_brk_pend[0] = FALSE; | |
tStates += 5; | |
} | |
else { | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 1); | |
POP(PC); | |
tStates += 11; | |
} | |
break; | |
case 0xf1: /* POP AF */ | |
tStates += 10; | |
CheckBreakWord(SP); | |
POP(AF); | |
break; | |
case 0xf2: /* JP P,nnnn */ | |
sim_brk_pend[0] = FALSE; | |
JPC(!TSTFLAG(S)); /* also updates tStates */ | |
break; | |
case 0xf3: /* DI */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
IFF_S = 0; | |
break; | |
case 0xf4: /* CALL P,nnnn */ | |
CALLC(!TSTFLAG(S)); /* also updates tStates */ | |
break; | |
case 0xf5: /* PUSH AF */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(AF); | |
break; | |
case 0xf6: /* OR nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) | RAM_pp(PC)) & 0xff]; | |
break; | |
case 0xf7: /* RST 30H */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(PC); | |
PCQ_ENTRY(PC - 1); | |
PC = 0x30; | |
break; | |
case 0xf8: /* RET M */ | |
if (TSTFLAG(S)) { | |
CheckBreakWord(SP); | |
PCQ_ENTRY(PC - 1); | |
POP(PC); | |
tStates += 11; | |
} | |
else { | |
sim_brk_pend[0] = FALSE; | |
tStates += 5; | |
} | |
break; | |
case 0xf9: /* LD SP,HL */ | |
tStates += 6; | |
sim_brk_pend[0] = FALSE; | |
SP = HL; | |
break; | |
case 0xfa: /* JP M,nnnn */ | |
sim_brk_pend[0] = FALSE; | |
JPC(TSTFLAG(S)); /* also updates tStates */ | |
break; | |
case 0xfb: /* EI */ | |
tStates += 4; | |
sim_brk_pend[0] = FALSE; | |
IFF_S = 3; | |
break; | |
case 0xfc: /* CALL M,nnnn */ | |
CALLC(TSTFLAG(S)); /* also updates tStates */ | |
break; | |
case 0xfd: /* FD prefix */ | |
checkCPU8080; | |
switch (op = RAM_pp(PC)) { | |
case 0x09: /* ADD IY,BC */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
IY &= ADDRMASK; | |
BC &= ADDRMASK; | |
sum = IY + BC; | |
AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IY ^ BC ^ sum) >> 8]; | |
IY = sum; | |
break; | |
case 0x19: /* ADD IY,DE */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
IY &= ADDRMASK; | |
DE &= ADDRMASK; | |
sum = IY + DE; | |
AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IY ^ DE ^ sum) >> 8]; | |
IY = sum; | |
break; | |
case 0x21: /* LD IY,nnnn */ | |
tStates += 14; | |
sim_brk_pend[0] = FALSE; | |
IY = GetWORD(PC); | |
PC += 2; | |
break; | |
case 0x22: /* LD (nnnn),IY */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
PutWORD(temp, IY); | |
PC += 2; | |
break; | |
case 0x23: /* INC IY */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
++IY; | |
break; | |
case 0x24: /* INC IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
IY += 0x100; | |
AF = (AF & ~0xfe) | incZ80Table[hreg(IY)]; | |
break; | |
case 0x25: /* DEC IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
IY -= 0x100; | |
AF = (AF & ~0xfe) | decZ80Table[hreg(IY)]; | |
break; | |
case 0x26: /* LD IYH,nn */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IY, RAM_pp(PC)); | |
break; | |
case 0x29: /* ADD IY,IY */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
IY &= ADDRMASK; | |
sum = IY + IY; | |
AF = (AF & ~0x3b) | cbitsDup16Table[sum >> 8]; | |
IY = sum; | |
break; | |
case 0x2a: /* LD IY,(nnnn) */ | |
tStates += 20; | |
temp = GetWORD(PC); | |
CheckBreakWord(temp); | |
IY = GetWORD(temp); | |
PC += 2; | |
break; | |
case 0x2b: /* DEC IY */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
--IY; | |
break; | |
case 0x2c: /* INC IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IY) + 1; | |
Setlreg(IY, temp); | |
AF = (AF & ~0xfe) | incZ80Table[temp]; | |
break; | |
case 0x2d: /* DEC IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IY) - 1; | |
Setlreg(IY, temp); | |
AF = (AF & ~0xfe) | decZ80Table[temp & 0xff]; | |
break; | |
case 0x2e: /* LD IYL,nn */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IY, RAM_pp(PC)); | |
break; | |
case 0x34: /* INC (IY+dd) */ | |
tStates += 23; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr) + 1; | |
PutBYTE(adr, temp); | |
AF = (AF & ~0xfe) | incZ80Table[temp]; | |
break; | |
case 0x35: /* DEC (IY+dd) */ | |
tStates += 23; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr) - 1; | |
PutBYTE(adr, temp); | |
AF = (AF & ~0xfe) | decZ80Table[temp & 0xff]; | |
break; | |
case 0x36: /* LD (IY+dd),nn */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, RAM_pp(PC)); | |
break; | |
case 0x39: /* ADD IY,SP */ | |
tStates += 15; | |
sim_brk_pend[0] = FALSE; | |
IY &= ADDRMASK; | |
SP &= ADDRMASK; | |
sum = IY + SP; | |
AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IY ^ SP ^ sum) >> 8]; | |
IY = sum; | |
break; | |
case 0x44: /* LD B,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(BC, hreg(IY)); | |
break; | |
case 0x45: /* LD B,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(BC, lreg(IY)); | |
break; | |
case 0x46: /* LD B,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Sethreg(BC, GetBYTE(adr)); | |
break; | |
case 0x4c: /* LD C,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(BC, hreg(IY)); | |
break; | |
case 0x4d: /* LD C,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(BC, lreg(IY)); | |
break; | |
case 0x4e: /* LD C,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Setlreg(BC, GetBYTE(adr)); | |
break; | |
case 0x54: /* LD D,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(DE, hreg(IY)); | |
break; | |
case 0x55: /* LD D,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(DE, lreg(IY)); | |
break; | |
case 0x56: /* LD D,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Sethreg(DE, GetBYTE(adr)); | |
break; | |
case 0x5c: /* LD E,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(DE, hreg(IY)); | |
break; | |
case 0x5d: /* LD E,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(DE, lreg(IY)); | |
break; | |
case 0x5e: /* LD E,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Setlreg(DE, GetBYTE(adr)); | |
break; | |
case 0x60: /* LD IYH,B */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IY, hreg(BC)); | |
break; | |
case 0x61: /* LD IYH,C */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IY, lreg(BC)); | |
break; | |
case 0x62: /* LD IYH,D */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IY, hreg(DE)); | |
break; | |
case 0x63: /* LD IYH,E */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IY, lreg(DE)); | |
break; | |
case 0x64: /* LD IYH,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x65: /* LD IYH,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IY, lreg(IY)); | |
break; | |
case 0x66: /* LD H,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Sethreg(HL, GetBYTE(adr)); | |
break; | |
case 0x67: /* LD IYH,A */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(IY, hreg(AF)); | |
break; | |
case 0x68: /* LD IYL,B */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IY, hreg(BC)); | |
break; | |
case 0x69: /* LD IYL,C */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IY, lreg(BC)); | |
break; | |
case 0x6a: /* LD IYL,D */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IY, hreg(DE)); | |
break; | |
case 0x6b: /* LD IYL,E */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IY, lreg(DE)); | |
break; | |
case 0x6c: /* LD IYL,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IY, hreg(IY)); | |
break; | |
case 0x6d: /* LD IYL,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; /* nop */ | |
break; | |
case 0x6e: /* LD L,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Setlreg(HL, GetBYTE(adr)); | |
break; | |
case 0x6f: /* LD IYL,A */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Setlreg(IY, hreg(AF)); | |
break; | |
case 0x70: /* LD (IY+dd),B */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, hreg(BC)); | |
break; | |
case 0x71: /* LD (IY+dd),C */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, lreg(BC)); | |
break; | |
case 0x72: /* LD (IY+dd),D */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, hreg(DE)); | |
break; | |
case 0x73: /* LD (IY+dd),E */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, lreg(DE)); | |
break; | |
case 0x74: /* LD (IY+dd),H */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, hreg(HL)); | |
break; | |
case 0x75: /* LD (IY+dd),L */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, lreg(HL)); | |
break; | |
case 0x77: /* LD (IY+dd),A */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
PutBYTE(adr, hreg(AF)); | |
break; | |
case 0x7c: /* LD A,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(AF, hreg(IY)); | |
break; | |
case 0x7d: /* LD A,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
Sethreg(AF, lreg(IY)); | |
break; | |
case 0x7e: /* LD A,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
Sethreg(AF, GetBYTE(adr)); | |
break; | |
case 0x84: /* ADD A,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(IY); | |
acu = hreg(AF); | |
sum = acu + temp; | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x85: /* ADD A,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IY); | |
acu = hreg(AF); | |
sum = acu + temp; | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x86: /* ADD A,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
acu = hreg(AF); | |
sum = acu + temp; | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x8c: /* ADC A,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(IY); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x8d: /* ADC A,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IY); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x8e: /* ADC A,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
acu = hreg(AF); | |
sum = acu + temp + TSTFLAG(C); | |
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum]; | |
break; | |
case 0x96: /* SUB (IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
acu = hreg(AF); | |
sum = acu - temp; | |
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0x94: /* SUB IYH */ | |
SETFLAG(C, 0);/* fall through, a bit less efficient but smaller code */ | |
case 0x9c: /* SBC A,IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(IY); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0x95: /* SUB IYL */ | |
SETFLAG(C, 0);/* fall through, a bit less efficient but smaller code */ | |
case 0x9d: /* SBC A,IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IY); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0x9e: /* SBC A,(IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
acu = hreg(AF); | |
sum = acu - temp - TSTFLAG(C); | |
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0xa4: /* AND IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF & IY) >> 8) & 0xff]; | |
break; | |
case 0xa5: /* AND IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = andTable[((AF >> 8) & IY) & 0xff]; | |
break; | |
case 0xa6: /* AND (IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
AF = andTable[((AF >> 8) & GetBYTE(adr)) & 0xff]; | |
break; | |
case 0xac: /* XOR IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF ^ IY) >> 8) & 0xff]; | |
break; | |
case 0xad: /* XOR IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) ^ IY) & 0xff]; | |
break; | |
case 0xae: /* XOR (IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
AF = xororTable[((AF >> 8) ^ GetBYTE(adr)) & 0xff]; | |
break; | |
case 0xb4: /* OR IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF | IY) >> 8) & 0xff]; | |
break; | |
case 0xb5: /* OR IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
AF = xororTable[((AF >> 8) | IY) & 0xff]; | |
break; | |
case 0xb6: /* OR (IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
AF = xororTable[((AF >> 8) | GetBYTE(adr)) & 0xff]; | |
break; | |
case 0xbc: /* CP IYH */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = hreg(IY); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0xbd: /* CP IYL */ | |
tStates += 9; | |
sim_brk_pend[0] = FALSE; | |
temp = lreg(IY); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0xbe: /* CP (IY+dd) */ | |
tStates += 19; | |
adr = IY + (int8) RAM_pp(PC); | |
CheckBreakByte(adr); | |
temp = GetBYTE(adr); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff]; | |
break; | |
case 0xcb: /* CB prefix */ | |
adr = IY + (int8) RAM_pp(PC); | |
switch ((op = GetBYTE(PC)) & 7) { | |
case 0: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = hreg(BC); | |
break; | |
case 1: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = lreg(BC); | |
break; | |
case 2: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = hreg(DE); | |
break; | |
case 3: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = lreg(DE); | |
break; | |
case 4: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = hreg(HL); | |
break; | |
case 5: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = lreg(HL); | |
break; | |
case 6: | |
CheckBreakByte(adr); | |
++PC; | |
acu = GetBYTE(adr); | |
break; | |
case 7: | |
sim_brk_pend[0] = FALSE; | |
++PC; | |
acu = hreg(AF); | |
break; | |
} | |
switch (op & 0xc0) { | |
case 0x00: /* shift/rotate */ | |
tStates += 23; | |
switch (op & 0x38) { | |
case 0x00: /* RLC */ | |
temp = (acu << 1) | (acu >> 7); | |
cbits = temp & 1; | |
goto cbshflg3; | |
case 0x08: /* RRC */ | |
temp = (acu >> 1) | (acu << 7); | |
cbits = temp & 0x80; | |
goto cbshflg3; | |
case 0x10: /* RL */ | |
temp = (acu << 1) | TSTFLAG(C); | |
cbits = acu & 0x80; | |
goto cbshflg3; | |
case 0x18: /* RR */ | |
temp = (acu >> 1) | (TSTFLAG(C) << 7); | |
cbits = acu & 1; | |
goto cbshflg3; | |
case 0x20: /* SLA */ | |
temp = acu << 1; | |
cbits = acu & 0x80; | |
goto cbshflg3; | |
case 0x28: /* SRA */ | |
temp = (acu >> 1) | (acu & 0x80); | |
cbits = acu & 1; | |
goto cbshflg3; | |
case 0x30: /* SLIA */ | |
temp = (acu << 1) | 1; | |
cbits = acu & 0x80; | |
goto cbshflg3; | |
case 0x38: /* SRL */ | |
temp = acu >> 1; | |
cbits = acu & 1; | |
cbshflg3: | |
AF = (AF & ~0xff) | rotateShiftTable[temp & 0xff] | !!cbits; | |
} | |
break; | |
case 0x40: /* BIT */ | |
tStates += 20; | |
if (acu & (1 << ((op >> 3) & 7))) { | |
AF = (AF & ~0xfe) | 0x10 | (((op & 0x38) == 0x38) << 7); | |
} | |
else { | |
AF = (AF & ~0xfe) | 0x54; | |
} | |
if ((op & 7) != 6) { | |
AF |= (acu & 0x28); | |
} | |
temp = acu; | |
break; | |
case 0x80: /* RES */ | |
tStates += 23; | |
temp = acu & ~(1 << ((op >> 3) & 7)); | |
break; | |
case 0xc0: /* SET */ | |
tStates += 23; | |
temp = acu | (1 << ((op >> 3) & 7)); | |
break; | |
} | |
switch (op & 7) { | |
case 0: | |
Sethreg(BC, temp); | |
break; | |
case 1: | |
Setlreg(BC, temp); | |
break; | |
case 2: | |
Sethreg(DE, temp); | |
break; | |
case 3: | |
Setlreg(DE, temp); | |
break; | |
case 4: | |
Sethreg(HL, temp); | |
break; | |
case 5: | |
Setlreg(HL, temp); | |
break; | |
case 6: | |
PutBYTE(adr, temp); | |
break; | |
case 7: | |
Sethreg(AF, temp); | |
break; | |
} | |
break; | |
case 0xe1: /* POP IY */ | |
tStates += 14; | |
CheckBreakWord(SP); | |
POP(IY); | |
break; | |
case 0xe3: /* EX (SP),IY */ | |
tStates += 23; | |
CheckBreakWord(SP); | |
temp = IY; | |
POP(IY); | |
PUSH(temp); | |
break; | |
case 0xe5: /* PUSH IY */ | |
tStates += 15; | |
CheckBreakWord(SP - 2); | |
PUSH(IY); | |
break; | |
case 0xe9: /* JP (IY) */ | |
tStates += 8; | |
sim_brk_pend[0] = FALSE; | |
PCQ_ENTRY(PC - 2); | |
PC = IY; | |
break; | |
case 0xf9: /* LD SP,IY */ | |
tStates += 10; | |
sim_brk_pend[0] = FALSE; | |
SP = IY; | |
break; | |
default: /* ignore FD */ | |
sim_brk_pend[0] = FALSE; | |
checkCPUZ80; | |
PC--; | |
} | |
break; | |
case 0xfe: /* CP nn */ | |
tStates += 7; | |
sim_brk_pend[0] = FALSE; | |
temp = RAM_pp(PC); | |
AF = (AF & ~0x28) | (temp & 0x28); | |
acu = hreg(AF); | |
sum = acu - temp; | |
cbits = acu ^ temp ^ sum; | |
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) | | |
(SetPV) | cbits2Table[cbits & 0x1ff]; | |
break; | |
case 0xff: /* RST 38H */ | |
tStates += 11; | |
CheckBreakWord(SP - 2); | |
PUSH(PC); | |
PCQ_ENTRY(PC - 1); | |
PC = 0x38; | |
} | |
} | |
end_decode: | |
/* simulation halted */ | |
saved_PC = ((reason == STOP_OPCODE) || (reason == STOP_MEM)) ? PCX : PC; | |
pcq_r -> qptr = pcq_p; /* update pc q ptr */ | |
AF_S = AF; | |
BC_S = BC; | |
DE_S = DE; | |
HL_S = HL; | |
IX_S = IX; | |
IY_S = IY; | |
SP_S = SP; | |
executedTStates = tStates; | |
return reason; | |
} | |
static void reset_memory(void) { | |
uint32 i, j; | |
checkROMBoundaries(); | |
if (cpu_unit.flags & UNIT_BANKED) { | |
for (i = 0; i < MAXMEMSIZE; i++) { | |
for (j = 0; j < MAXBANKS; j++) { | |
resetCell(i, j); | |
} | |
} | |
} | |
else if (cpu_unit.flags & UNIT_ROM) { | |
for (i = 0; i < ROMLow; i++) { | |
resetCell(i, 0); | |
} | |
for (i = ROMHigh + 1; i < MAXMEMSIZE; i++) { | |
resetCell(i, 0); | |
} | |
} | |
else { | |
for (i = 0; i < MAXMEMSIZE; i++) { | |
resetCell(i, 0); | |
} | |
} | |
if (cpu_unit.flags & (UNIT_ALTAIRROM | UNIT_BANKED)) { | |
install_bootrom(); | |
} | |
isProtected = FALSE; | |
} | |
void printROMMessage(const uint32 cntROM) { | |
if (cntROM) { | |
printf("Warning: %d bytes written to ROM [%04X - %04X].\n", cntROM, ROMLow, ROMHigh); | |
} | |
} | |
/* reset routine */ | |
t_stat cpu_reset(DEVICE *dptr) { | |
extern uint32 sim_brk_types, sim_brk_dflt; /* breakpoint info */ | |
int32 i; | |
AF_S = AF1_S = 0; | |
BC_S = DE_S = HL_S = 0; | |
BC1_S = DE1_S = HL1_S = 0; | |
IR_S = IX_S = IY_S = SP_S = 0; | |
IFF_S = 3; | |
setBankSelect(0); | |
reset_memory(); | |
sim_brk_types = (SWMASK('E') | SWMASK('M')); | |
sim_brk_dflt = SWMASK('E'); | |
for (i = 0; i < PCQ_SIZE; i++) { | |
pcq[i] = 0; | |
} | |
pcq_p = 0; | |
pcq_r = find_reg("PCQ", NULL, dptr); | |
if (pcq_r) { | |
pcq_r -> qptr = 0; | |
} | |
else { | |
return SCPE_IERR; | |
} | |
return SCPE_OK; | |
} | |
static void checkROMBoundaries(void) { | |
uint32 temp; | |
if (ROMLow > ROMHigh) { | |
printf("ROMLOW [%04X] must be less than or equal to ROMHIGH [%04X]. Values exchanged.\n", | |
ROMLow, ROMHigh); | |
temp = ROMLow; | |
ROMLow = ROMHigh; | |
ROMHigh = temp; | |
} | |
if (cpu_unit.flags & UNIT_ALTAIRROM) { | |
if (defaultROMLow < ROMLow) { | |
printf("ROMLOW [%04X] reset to %04X since Altair ROM was desired.\n", ROMLow, defaultROMLow); | |
ROMLow = defaultROMLow; | |
} | |
if (ROMHigh < defaultROMHigh) { | |
printf("ROMHIGH [%04X] reset to %04X since Altair ROM was desired.\n", ROMHigh, defaultROMHigh); | |
ROMHigh = defaultROMHigh; | |
} | |
} | |
} | |
static t_stat cpu_set_rom(UNIT *uptr, int32 value, char *cptr, void *desc) { | |
checkROMBoundaries(); | |
return SCPE_OK; | |
} | |
static t_stat cpu_set_norom(UNIT *uptr, int32 value, char *cptr, void *desc) { | |
if (cpu_unit.flags & UNIT_ALTAIRROM) { | |
printf("\"SET CPU NOALTAIRROM\" also executed.\n"); | |
cpu_unit.flags &= ~UNIT_ALTAIRROM; | |
} | |
return SCPE_OK; | |
} | |
static t_stat cpu_set_altairrom(UNIT *uptr, int32 value, char *cptr, void *desc) { | |
install_bootrom(); | |
if (ROMLow != defaultROMLow) { | |
printf("\"D ROMLOW %04X\" also executed.\n", defaultROMLow); | |
ROMLow = defaultROMLow; | |
} | |
if (ROMHigh != defaultROMHigh) { | |
printf("\"D ROMHIGH %04X\" also executed.\n", defaultROMHigh); | |
ROMHigh = defaultROMHigh; | |
} | |
if (!(cpu_unit.flags & UNIT_ROM)) { | |
printf("\"SET CPU ROM\" also executed.\n"); | |
cpu_unit.flags |= UNIT_ROM; | |
} | |
return SCPE_OK; | |
} | |
static t_stat cpu_set_warnrom(UNIT *uptr, int32 value, char *cptr, void *desc) { | |
if ((!(cpu_unit.flags & UNIT_ROM)) && (MEMSIZE >= 64*KB)) { | |
printf("CPU has currently no ROM - no warning to be expected.\n"); | |
} | |
return SCPE_OK; | |
} | |
static t_stat cpu_set_banked(UNIT *uptr, int32 value, char *cptr, void *desc) { | |
if (common > defaultROMLow) { | |
printf("Warning: COMMON [%04X] must not be greater than %04X. Reset to %04X.\n", | |
common, defaultROMLow, defaultROMLow); | |
common = defaultROMLow; | |
} | |
if (MEMSIZE != (MAXBANKS * MAXMEMSIZE)) { | |
previousCapacity = MEMSIZE; | |
} | |
MEMSIZE = MAXBANKS * MAXMEMSIZE; | |
cpu_dev.awidth = 16 + MAXBANKSLOG2; | |
return SCPE_OK; | |
} | |
static t_stat cpu_set_nonbanked(UNIT *uptr, int32 value, char *cptr, void *desc) { | |
if (MEMSIZE == (MAXBANKS * MAXMEMSIZE)) { | |
MEMSIZE = previousCapacity ? previousCapacity : 64*KB; | |
} | |
cpu_dev.awidth = 16; | |
return SCPE_OK; | |
} | |
static t_stat cpu_set_size(UNIT *uptr, int32 value, char *cptr, void *desc) { | |
if (cpu_unit.flags & UNIT_BANKED) { | |
printf("\"SET CPU NONBANKED\" also executed.\n"); | |
cpu_unit.flags &= ~UNIT_BANKED; | |
} | |
MEMSIZE = value; | |
cpu_dev.awidth = 16; | |
reset_memory(); | |
return SCPE_OK; | |
} | |
/* This is the binary loader. The input file is considered to be | |
a string of literal bytes with no format special format. The | |
load starts at the current value of the PC. ROM/NOROM and | |
ALTAIRROM/NOALTAIRROM settings are ignored. | |
*/ | |
t_stat sim_load(FILE *fileref, char *cptr, char *fnam, int32 flag) { | |
int32 i, addr = 0, cnt = 0, org, cntROM = 0, cntNonExist = 0; | |
t_addr j, lo, hi; | |
char *result; | |
t_stat status; | |
if (flag) { | |
result = get_range(NULL, cptr, &lo, &hi, 16, ADDRMASK, 0); | |
if (result == NULL) { | |
return SCPE_ARG; | |
} | |
for (j = lo; j <= hi; j++) { | |
if (putc(GetBYTE(j), fileref) == EOF) { | |
return SCPE_IOERR; | |
} | |
} | |
printf("%d byte%s dumped [%x - %x].\n", hi + 1 - lo, hi == lo ? "" : "s", lo, hi); | |
} | |
else { | |
if (*cptr == 0) { | |
addr = saved_PC; | |
} | |
else { | |
addr = get_uint(cptr, 16, ADDRMASK, &status); | |
if (status != SCPE_OK) { | |
return status; | |
} | |
} | |
org = addr; | |
while ((addr < MAXMEMSIZE) && ((i = getc(fileref)) != EOF)) { | |
PutBYTEForced(addr, i); | |
if (addressIsInROM(addr)) { | |
cntROM++; | |
} | |
if (!addressExists(addr)) { | |
cntNonExist++; | |
} | |
addr++; | |
cnt++; | |
} /* end while */ | |
printf("%d bytes [%d page%s] loaded at %x.\n", cnt, (cnt + 255) >> 8, | |
((cnt + 255) >> 8) == 1 ? "" : "s", org); | |
printROMMessage(cntROM); | |
if (cntNonExist) { | |
printf("Warning: %d bytes written to non-existing memory (for this configuration).\n", cntNonExist); | |
} | |
} | |
return SCPE_OK; | |
} |