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src.rivoreo.one / emulators / simh / fc259c1807ac3a20dd59aa85a7aa7fa580a0750b / . / AltairZ80 / altairz80_cpu_nommu.c
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/* altairz80_cpu_opt.c: MITS Altair CPU (8080 and Z80)
Copyright (c) 2002-2014, 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"
#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 LOW_DIGIT(x) ((x) & 0xf)
#define HIGH_DIGIT(x) (((x) >> 4) & 0xf)
#define LOW_REGISTER(x) ((x) & 0xff)
#define HIGH_REGISTER(x) (((x) >> 8) & 0xff)
#define SET_LOW_REGISTER(x, v) x = (((x) & 0xff00) | ((v) & 0xff))
#define SET_HIGH_REGISTER(x, v) x = (((x) & 0xff) | (((v) & 0xff) << 8))
#define PARITY(x) parityTable[(x) & 0xff]
/* SET_PV and SET_PV2 are used to provide correct PARITY flag semantics for the 8080 in cases
where the Z80 uses the overflow flag
*/
#define SET_PVS(s) ((chiptype == CHIP_TYPE_Z80) ? (((cbits >> 6) ^ (cbits >> 5)) & 4) : (PARITY(s)))
#define SET_PV (SET_PVS(sum))
#define SET_PV2(x) ((chiptype == CHIP_TYPE_Z80) ? (((temp == (x)) << 2)) : (PARITY(temp)))
/* CHECK_CPU_8080 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 CHECK_CPU_8080 \
if (chiptype == CHIP_TYPE_8080) { \
if (cpu_unit.flags & UNIT_CPU_OPSTOP) { \
reason = STOP_OPCODE; \
goto end_decode; \
} \
else continue; \
}
/* CHECK_CPU_Z80 must be invoked whenever a non Z80 instruction is executed */
#define CHECK_CPU_Z80 \
if (cpu_unit.flags & UNIT_CPU_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) { \
if (cond) { \
PC = GET_WORD(PC); \
} \
else { \
PC += 2; \
} \
}
#define CALLC(cond) { \
if (cond) { \
register uint32 adrr = GET_WORD(PC); \
PUSH(PC + 2); \
PC = adrr; \
} \
else { \
PC += 2; \
} \
}
/* increase R by val */
#define INCR(val) IR_S = (IR_S & ~0x7f) | ((IR_S + (val)) & 0x7f)
/* function prototypes */
t_stat sim_instr_nommu(void);
extern void out(const uint32 Port, const uint32 Value);
extern uint32 in(const uint32 Port);
extern UNIT cpu_unit;
extern uint32 PCX; /* external view of PC */
extern int32 AF_S; /* AF register */
extern int32 BC_S; /* BC register */
extern int32 DE_S; /* DE register */
extern int32 HL_S; /* HL register */
extern int32 IX_S; /* IX register */
extern int32 IY_S; /* IY register */
extern int32 PC_S; /* program counter */
extern int32 SP_S; /* SP register */
extern int32 AF1_S; /* alternate AF register */
extern int32 BC1_S; /* alternate BC register */
extern int32 DE1_S; /* alternate DE register */
extern int32 HL1_S; /* alternate HL register */
extern int32 IFF_S; /* Interrupt Flip Flop */
extern int32 IR_S; /* Interrupt (upper) / Refresh (lower) register */
#if !UNIX_PLATFORM
extern void pollForCPUStop(void);
#endif
/* 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,
};
/* Memory management */
uint8 MOPT[MAXBANKSIZE]; /* RAM which is present */
static uint8 GET_BYTE(register uint32 Addr) {
return MOPT[Addr & ADDRMASK];
}
static void PUT_BYTE(register uint32 Addr, register uint32 Value) {
MOPT[Addr & ADDRMASK] = Value;
}
static void PUT_WORD(register uint32 Addr, register uint32 Value) {
MOPT[Addr & ADDRMASK] = Value;
MOPT[(Addr + 1) & ADDRMASK] = Value >> 8;
}
static uint16 GET_WORD(register uint32 a) {
return GET_BYTE(a) | (GET_BYTE(a + 1) << 8);
}
#define RAM_MM(a) GET_BYTE(a--)
#define RAM_PP(a) GET_BYTE(a++)
#define PUT_BYTE_PP(a,v) PUT_BYTE(a++, v)
#define PUT_BYTE_MM(a,v) PUT_BYTE(a--, v)
#define MM_PUT_BYTE(a,v) PUT_BYTE(--a, v)
#define PUSH(x) do { \
MM_PUT_BYTE(SP, (x) >> 8); \
MM_PUT_BYTE(SP, x); \
} while (0)
/* Macros for the IN/OUT instructions INI/INIR/IND/INDR/OUTI/OTIR/OUTD/OTDR
Pre condition
temp == value of register B at entry of the instruction
acu == value of transferred byte (IN or OUT)
Post condition
F is set correctly
Use INOUTFLAGS_ZERO(x) for INIR/INDR/OTIR/OTDR where
x == (C + 1) & 0xff for INIR
x == L for OTIR and OTDR
x == (C - 1) & 0xff for INDR
Use INOUTFLAGS_NONZERO(x) for INI/IND/OUTI/OUTD where
x == (C + 1) & 0xff for INI
x == L for OUTI and OUTD
x == (C - 1) & 0xff for IND
*/
#define INOUTFLAGS(syxz, x) \
AF = (AF & 0xff00) | (syxz) | /* SF, YF, XF, ZF */ \
((acu & 0x80) >> 6) | /* NF */ \
((acu + (x)) > 0xff ? (FLAG_C | FLAG_H) : 0) | /* CF, HF */ \
parityTable[((acu + (x)) & 7) ^ temp] /* PF */
#define INOUTFLAGS_ZERO(x) INOUTFLAGS(FLAG_Z, x)
#define INOUTFLAGS_NONZERO(x) \
INOUTFLAGS((HIGH_REGISTER(BC) & 0xa8) | ((HIGH_REGISTER(BC) == 0) << 6), x)
t_stat sim_instr_nommu(void) {
int32 reason = SCPE_OK;
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;
register int32 l_sim_brk_summ;
AF = AF_S;
BC = BC_S;
DE = DE_S;
HL = HL_S;
PC = PC_S & ADDRMASK;
SP = SP_S;
IX = IX_S;
IY = IY_S;
l_sim_brk_summ = sim_brk_summ;
/* main instruction fetch/decode loop */
while (TRUE) { /* loop until halted */
if (sim_interval <= 0) { /* check clock queue */
#if !UNIX_PLATFORM
/* poll on platforms without reliable signalling but not too often */
pollForCPUStop(); /* following sim_process_event will check for stop */
#endif
if ((reason = sim_process_event()))
break;
}
if (l_sim_brk_summ && sim_brk_test(PC, SWMASK('E'))) {/* breakpoint? */
reason = STOP_IBKPT; /* stop simulation */
break;
}
PCX = PC;
INCR(1);
sim_interval--;
switch(RAM_PP(PC)) {
case 0x00: /* NOP */
break;
case 0x01: /* LD BC,nnnn */
BC = GET_WORD(PC);
PC += 2;
break;
case 0x02: /* LD (BC),A */
PUT_BYTE(BC, HIGH_REGISTER(AF));
break;
case 0x03: /* INC BC */
++BC;
break;
case 0x04: /* INC B */
BC += 0x100;
temp = HIGH_REGISTER(BC);
AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80); /* SET_PV2 uses temp */
break;
case 0x05: /* DEC B */
BC -= 0x100;
temp = HIGH_REGISTER(BC);
AF = (AF & ~0xfe) | decTable[temp] | SET_PV2(0x7f); /* SET_PV2 uses temp */
break;
case 0x06: /* LD B,nn */
SET_HIGH_REGISTER(BC, RAM_PP(PC));
break;
case 0x07: /* RLCA */
AF = ((AF >> 7) & 0x0128) | ((AF << 1) & ~0x1ff) |
(AF & 0xc4) | ((AF >> 15) & 1);
break;
case 0x08: /* EX AF,AF' */
CHECK_CPU_8080;
temp = AF;
AF = AF1_S;
AF1_S = temp;
break;
case 0x09: /* ADD HL,BC */
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) */
SET_HIGH_REGISTER(AF, GET_BYTE(BC));
break;
case 0x0b: /* DEC BC */
--BC;
break;
case 0x0c: /* INC C */
temp = LOW_REGISTER(BC) + 1;
SET_LOW_REGISTER(BC, temp);
AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80);
break;
case 0x0d: /* DEC C */
temp = LOW_REGISTER(BC) - 1;
SET_LOW_REGISTER(BC, temp);
AF = (AF & ~0xfe) | decTable[temp & 0xff] | SET_PV2(0x7f);
break;
case 0x0e: /* LD C,nn */
SET_LOW_REGISTER(BC, RAM_PP(PC));
break;
case 0x0f: /* RRCA */
AF = (AF & 0xc4) | rrcaTable[HIGH_REGISTER(AF)];
break;
case 0x10: /* DJNZ dd */
CHECK_CPU_8080;
if ((BC -= 0x100) & 0xff00)
PC += (int8) GET_BYTE(PC) + 1;
else
PC++;
break;
case 0x11: /* LD DE,nnnn */
DE = GET_WORD(PC);
PC += 2;
break;
case 0x12: /* LD (DE),A */
PUT_BYTE(DE, HIGH_REGISTER(AF));
break;
case 0x13: /* INC DE */
++DE;
break;
case 0x14: /* INC D */
DE += 0x100;
temp = HIGH_REGISTER(DE);
AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80); /* SET_PV2 uses temp */
break;
case 0x15: /* DEC D */
DE -= 0x100;
temp = HIGH_REGISTER(DE);
AF = (AF & ~0xfe) | decTable[temp] | SET_PV2(0x7f); /* SET_PV2 uses temp */
break;
case 0x16: /* LD D,nn */
SET_HIGH_REGISTER(DE, RAM_PP(PC));
break;
case 0x17: /* RLA */
AF = ((AF << 8) & 0x0100) | ((AF >> 7) & 0x28) | ((AF << 1) & ~0x01ff) |
(AF & 0xc4) | ((AF >> 15) & 1);
break;
case 0x18: /* JR dd */
CHECK_CPU_8080;
PC += (int8) GET_BYTE(PC) + 1;
break;
case 0x19: /* ADD HL,DE */
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) */
SET_HIGH_REGISTER(AF, GET_BYTE(DE));
break;
case 0x1b: /* DEC DE */
--DE;
break;
case 0x1c: /* INC E */
temp = LOW_REGISTER(DE) + 1;
SET_LOW_REGISTER(DE, temp);
AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80);
break;
case 0x1d: /* DEC E */
temp = LOW_REGISTER(DE) - 1;
SET_LOW_REGISTER(DE, temp);
AF = (AF & ~0xfe) | decTable[temp & 0xff] | SET_PV2(0x7f);
break;
case 0x1e: /* LD E,nn */
SET_LOW_REGISTER(DE, RAM_PP(PC));
break;
case 0x1f: /* RRA */
AF = ((AF & 1) << 15) | (AF & 0xc4) | rraTable[HIGH_REGISTER(AF)];
break;
case 0x20: /* JR NZ,dd */
CHECK_CPU_8080;
if (TSTFLAG(Z))
PC++;
else
PC += (int8) GET_BYTE(PC) + 1;
break;
case 0x21: /* LD HL,nnnn */
HL = GET_WORD(PC);
PC += 2;
break;
case 0x22: /* LD (nnnn),HL */
temp = GET_WORD(PC);
PUT_WORD(temp, HL);
PC += 2;
break;
case 0x23: /* INC HL */
++HL;
break;
case 0x24: /* INC H */
HL += 0x100;
temp = HIGH_REGISTER(HL);
AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80); /* SET_PV2 uses temp */
break;
case 0x25: /* DEC H */
HL -= 0x100;
temp = HIGH_REGISTER(HL);
AF = (AF & ~0xfe) | decTable[temp] | SET_PV2(0x7f); /* SET_PV2 uses temp */
break;
case 0x26: /* LD H,nn */
SET_HIGH_REGISTER(HL, RAM_PP(PC));
break;
case 0x27: /* DAA */
acu = HIGH_REGISTER(AF);
temp = LOW_DIGIT(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)
acu -= 0x160; /* adjust high digit */
}
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))
acu += 0x60; /* adjust high digit */
}
AF = (AF & 0x12) | rrdrldTable[acu & 0xff] | ((acu >> 8) & 1) | cbits;
break;
case 0x28: /* JR Z,dd */
CHECK_CPU_8080;
if (TSTFLAG(Z))
PC += (int8) GET_BYTE(PC) + 1;
else
PC++;
break;
case 0x29: /* ADD HL,HL */
HL &= ADDRMASK;
sum = HL + HL;
AF = (AF & ~0x3b) | cbitsDup16Table[sum >> 8];
HL = sum;
break;
case 0x2a: /* LD HL,(nnnn) */
temp = GET_WORD(PC);
HL = GET_WORD(temp);
PC += 2;
break;
case 0x2b: /* DEC HL */
--HL;
break;
case 0x2c: /* INC L */
temp = LOW_REGISTER(HL) + 1;
SET_LOW_REGISTER(HL, temp);
AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80);
break;
case 0x2d: /* DEC L */
temp = LOW_REGISTER(HL) - 1;
SET_LOW_REGISTER(HL, temp);
AF = (AF & ~0xfe) | decTable[temp & 0xff] | SET_PV2(0x7f);
break;
case 0x2e: /* LD L,nn */
SET_LOW_REGISTER(HL, RAM_PP(PC));
break;
case 0x2f: /* CPL */
AF = (~AF & ~0xff) | (AF & 0xc5) | ((~AF >> 8) & 0x28) | 0x12;
break;
case 0x30: /* JR NC,dd */
CHECK_CPU_8080;
if (TSTFLAG(C))
PC++;
else
PC += (int8) GET_BYTE(PC) + 1;
break;
case 0x31: /* LD SP,nnnn */
SP = GET_WORD(PC);
PC += 2;
break;
case 0x32: /* LD (nnnn),A */
temp = GET_WORD(PC);
PUT_BYTE(temp, HIGH_REGISTER(AF));
PC += 2;
break;
case 0x33: /* INC SP */
++SP;
break;
case 0x34: /* INC (HL) */
temp = GET_BYTE(HL) + 1;
PUT_BYTE(HL, temp);
AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80);
break;
case 0x35: /* DEC (HL) */
temp = GET_BYTE(HL) - 1;
PUT_BYTE(HL, temp);
AF = (AF & ~0xfe) | decTable[temp & 0xff] | SET_PV2(0x7f);
break;
case 0x36: /* LD (HL),nn */
PUT_BYTE(HL, RAM_PP(PC));
break;
case 0x37: /* SCF */
AF = (AF & ~0x3b) | ((AF >> 8) & 0x28) | 1;
break;
case 0x38: /* JR C,dd */
CHECK_CPU_8080;
if (TSTFLAG(C))
PC += (int8) GET_BYTE(PC) + 1;
else
PC++;
break;
case 0x39: /* ADD HL,SP */
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) */
temp = GET_WORD(PC);
SET_HIGH_REGISTER(AF, GET_BYTE(temp));
PC += 2;
break;
case 0x3b: /* DEC SP */
--SP;
break;
case 0x3c: /* INC A */
AF += 0x100;
temp = HIGH_REGISTER(AF);
AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80); /* SET_PV2 uses temp */
break;
case 0x3d: /* DEC A */
AF -= 0x100;
temp = HIGH_REGISTER(AF);
AF = (AF & ~0xfe) | decTable[temp] | SET_PV2(0x7f); /* SET_PV2 uses temp */
break;
case 0x3e: /* LD A,nn */
SET_HIGH_REGISTER(AF, RAM_PP(PC));
break;
case 0x3f: /* CCF */
AF = (AF & ~0x3b) | ((AF >> 8) & 0x28) | ((AF & 1) << 4) | (~AF & 1);
break;
case 0x40: /* LD B,B */
break;
case 0x41: /* LD B,C */
BC = (BC & 0xff) | ((BC & 0xff) << 8);
break;
case 0x42: /* LD B,D */
BC = (BC & 0xff) | (DE & ~0xff);
break;
case 0x43: /* LD B,E */
BC = (BC & 0xff) | ((DE & 0xff) << 8);
break;
case 0x44: /* LD B,H */
BC = (BC & 0xff) | (HL & ~0xff);
break;
case 0x45: /* LD B,L */
BC = (BC & 0xff) | ((HL & 0xff) << 8);
break;
case 0x46: /* LD B,(HL) */
SET_HIGH_REGISTER(BC, GET_BYTE(HL));
break;
case 0x47: /* LD B,A */
BC = (BC & 0xff) | (AF & ~0xff);
break;
case 0x48: /* LD C,B */
BC = (BC & ~0xff) | ((BC >> 8) & 0xff);
break;
case 0x49: /* LD C,C */
break;
case 0x4a: /* LD C,D */
BC = (BC & ~0xff) | ((DE >> 8) & 0xff);
break;
case 0x4b: /* LD C,E */
BC = (BC & ~0xff) | (DE & 0xff);
break;
case 0x4c: /* LD C,H */
BC = (BC & ~0xff) | ((HL >> 8) & 0xff);
break;
case 0x4d: /* LD C,L */
BC = (BC & ~0xff) | (HL & 0xff);
break;
case 0x4e: /* LD C,(HL) */
SET_LOW_REGISTER(BC, GET_BYTE(HL));
break;
case 0x4f: /* LD C,A */
BC = (BC & ~0xff) | ((AF >> 8) & 0xff);
break;
case 0x50: /* LD D,B */
DE = (DE & 0xff) | (BC & ~0xff);
break;
case 0x51: /* LD D,C */
DE = (DE & 0xff) | ((BC & 0xff) << 8);
break;
case 0x52: /* LD D,D */
break;
case 0x53: /* LD D,E */
DE = (DE & 0xff) | ((DE & 0xff) << 8);
break;
case 0x54: /* LD D,H */
DE = (DE & 0xff) | (HL & ~0xff);
break;
case 0x55: /* LD D,L */
DE = (DE & 0xff) | ((HL & 0xff) << 8);
break;
case 0x56: /* LD D,(HL) */
SET_HIGH_REGISTER(DE, GET_BYTE(HL));
break;
case 0x57: /* LD D,A */
DE = (DE & 0xff) | (AF & ~0xff);
break;
case 0x58: /* LD E,B */
DE = (DE & ~0xff) | ((BC >> 8) & 0xff);
break;
case 0x59: /* LD E,C */
DE = (DE & ~0xff) | (BC & 0xff);
break;
case 0x5a: /* LD E,D */
DE = (DE & ~0xff) | ((DE >> 8) & 0xff);
break;
case 0x5b: /* LD E,E */
break;
case 0x5c: /* LD E,H */
DE = (DE & ~0xff) | ((HL >> 8) & 0xff);
break;
case 0x5d: /* LD E,L */
DE = (DE & ~0xff) | (HL & 0xff);
break;
case 0x5e: /* LD E,(HL) */
SET_LOW_REGISTER(DE, GET_BYTE(HL));
break;
case 0x5f: /* LD E,A */
DE = (DE & ~0xff) | ((AF >> 8) & 0xff);
break;
case 0x60: /* LD H,B */
HL = (HL & 0xff) | (BC & ~0xff);
break;
case 0x61: /* LD H,C */
HL = (HL & 0xff) | ((BC & 0xff) << 8);
break;
case 0x62: /* LD H,D */
HL = (HL & 0xff) | (DE & ~0xff);
break;
case 0x63: /* LD H,E */
HL = (HL & 0xff) | ((DE & 0xff) << 8);
break;
case 0x64: /* LD H,H */
break;
case 0x65: /* LD H,L */
HL = (HL & 0xff) | ((HL & 0xff) << 8);
break;
case 0x66: /* LD H,(HL) */
SET_HIGH_REGISTER(HL, GET_BYTE(HL));
break;
case 0x67: /* LD H,A */
HL = (HL & 0xff) | (AF & ~0xff);
break;
case 0x68: /* LD L,B */
HL = (HL & ~0xff) | ((BC >> 8) & 0xff);
break;
case 0x69: /* LD L,C */
HL = (HL & ~0xff) | (BC & 0xff);
break;
case 0x6a: /* LD L,D */
HL = (HL & ~0xff) | ((DE >> 8) & 0xff);
break;
case 0x6b: /* LD L,E */
HL = (HL & ~0xff) | (DE & 0xff);
break;
case 0x6c: /* LD L,H */
HL = (HL & ~0xff) | ((HL >> 8) & 0xff);
break;
case 0x6d: /* LD L,L */
break;
case 0x6e: /* LD L,(HL) */
SET_LOW_REGISTER(HL, GET_BYTE(HL));
break;
case 0x6f: /* LD L,A */
HL = (HL & ~0xff) | ((AF >> 8) & 0xff);
break;
case 0x70: /* LD (HL),B */
PUT_BYTE(HL, HIGH_REGISTER(BC));
break;
case 0x71: /* LD (HL),C */
PUT_BYTE(HL, LOW_REGISTER(BC));
break;
case 0x72: /* LD (HL),D */
PUT_BYTE(HL, HIGH_REGISTER(DE));
break;
case 0x73: /* LD (HL),E */
PUT_BYTE(HL, LOW_REGISTER(DE));
break;
case 0x74: /* LD (HL),H */
PUT_BYTE(HL, HIGH_REGISTER(HL));
break;
case 0x75: /* LD (HL),L */
PUT_BYTE(HL, LOW_REGISTER(HL));
break;
case 0x76: /* HALT */
PC--;
if (cpu_unit.flags & UNIT_CPU_STOPONHALT) {
reason = STOP_HALT;
goto end_decode;
}
sim_interval = 0;
break;
case 0x77: /* LD (HL),A */
PUT_BYTE(HL, HIGH_REGISTER(AF));
break;
case 0x78: /* LD A,B */
AF = (AF & 0xff) | (BC & ~0xff);
break;
case 0x79: /* LD A,C */
AF = (AF & 0xff) | ((BC & 0xff) << 8);
break;
case 0x7a: /* LD A,D */
AF = (AF & 0xff) | (DE & ~0xff);
break;
case 0x7b: /* LD A,E */
AF = (AF & 0xff) | ((DE & 0xff) << 8);
break;
case 0x7c: /* LD A,H */
AF = (AF & 0xff) | (HL & ~0xff);
break;
case 0x7d: /* LD A,L */
AF = (AF & 0xff) | ((HL & 0xff) << 8);
break;
case 0x7e: /* LD A,(HL) */
SET_HIGH_REGISTER(AF, GET_BYTE(HL));
break;
case 0x7f: /* LD A,A */
break;
case 0x80: /* ADD A,B */
temp = HIGH_REGISTER(BC);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x81: /* ADD A,C */
temp = LOW_REGISTER(BC);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x82: /* ADD A,D */
temp = HIGH_REGISTER(DE);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x83: /* ADD A,E */
temp = LOW_REGISTER(DE);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x84: /* ADD A,H */
temp = HIGH_REGISTER(HL);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x85: /* ADD A,L */
temp = LOW_REGISTER(HL);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x86: /* ADD A,(HL) */
temp = GET_BYTE(HL);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x87: /* ADD A,A */
cbits = 2 * HIGH_REGISTER(AF);
AF = cbitsDup8Table[cbits] | (SET_PVS(cbits));
break;
case 0x88: /* ADC A,B */
temp = HIGH_REGISTER(BC);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x89: /* ADC A,C */
temp = LOW_REGISTER(BC);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x8a: /* ADC A,D */
temp = HIGH_REGISTER(DE);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x8b: /* ADC A,E */
temp = LOW_REGISTER(DE);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x8c: /* ADC A,H */
temp = HIGH_REGISTER(HL);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x8d: /* ADC A,L */
temp = LOW_REGISTER(HL);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x8e: /* ADC A,(HL) */
temp = GET_BYTE(HL);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0x8f: /* ADC A,A */
cbits = 2 * HIGH_REGISTER(AF) + TSTFLAG(C);
AF = cbitsDup8Table[cbits] | (SET_PVS(cbits));
break;
case 0x90: /* SUB B */
temp = HIGH_REGISTER(BC);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x91: /* SUB C */
temp = LOW_REGISTER(BC);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x92: /* SUB D */
temp = HIGH_REGISTER(DE);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x93: /* SUB E */
temp = LOW_REGISTER(DE);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x94: /* SUB H */
temp = HIGH_REGISTER(HL);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x95: /* SUB L */
temp = LOW_REGISTER(HL);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x96: /* SUB (HL) */
temp = GET_BYTE(HL);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x97: /* SUB A */
AF = (chiptype == CHIP_TYPE_Z80) ? 0x42 : 0x46;
break;
case 0x98: /* SBC A,B */
temp = HIGH_REGISTER(BC);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x99: /* SBC A,C */
temp = LOW_REGISTER(BC);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x9a: /* SBC A,D */
temp = HIGH_REGISTER(DE);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x9b: /* SBC A,E */
temp = LOW_REGISTER(DE);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x9c: /* SBC A,H */
temp = HIGH_REGISTER(HL);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x9d: /* SBC A,L */
temp = LOW_REGISTER(HL);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x9e: /* SBC A,(HL) */
temp = GET_BYTE(HL);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0x9f: /* SBC A,A */
cbits = -TSTFLAG(C);
AF = subTable[cbits & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PVS(cbits));
break;
case 0xa0: /* AND B */
AF = andTable[((AF & BC) >> 8) & 0xff];
break;
case 0xa1: /* AND C */
AF = andTable[((AF >> 8) & BC) & 0xff];
break;
case 0xa2: /* AND D */
AF = andTable[((AF & DE) >> 8) & 0xff];
break;
case 0xa3: /* AND E */
AF = andTable[((AF >> 8) & DE) & 0xff];
break;
case 0xa4: /* AND H */
AF = andTable[((AF & HL) >> 8) & 0xff];
break;
case 0xa5: /* AND L */
AF = andTable[((AF >> 8) & HL) & 0xff];
break;
case 0xa6: /* AND (HL) */
AF = andTable[((AF >> 8) & GET_BYTE(HL)) & 0xff];
break;
case 0xa7: /* AND A */
AF = andTable[(AF >> 8) & 0xff];
break;
case 0xa8: /* XOR B */
AF = xororTable[((AF ^ BC) >> 8) & 0xff];
break;
case 0xa9: /* XOR C */
AF = xororTable[((AF >> 8) ^ BC) & 0xff];
break;
case 0xaa: /* XOR D */
AF = xororTable[((AF ^ DE) >> 8) & 0xff];
break;
case 0xab: /* XOR E */
AF = xororTable[((AF >> 8) ^ DE) & 0xff];
break;
case 0xac: /* XOR H */
AF = xororTable[((AF ^ HL) >> 8) & 0xff];
break;
case 0xad: /* XOR L */
AF = xororTable[((AF >> 8) ^ HL) & 0xff];
break;
case 0xae: /* XOR (HL) */
AF = xororTable[((AF >> 8) ^ GET_BYTE(HL)) & 0xff];
break;
case 0xaf: /* XOR A */
AF = 0x44;
break;
case 0xb0: /* OR B */
AF = xororTable[((AF | BC) >> 8) & 0xff];
break;
case 0xb1: /* OR C */
AF = xororTable[((AF >> 8) | BC) & 0xff];
break;
case 0xb2: /* OR D */
AF = xororTable[((AF | DE) >> 8) & 0xff];
break;
case 0xb3: /* OR E */
AF = xororTable[((AF >> 8) | DE) & 0xff];
break;
case 0xb4: /* OR H */
AF = xororTable[((AF | HL) >> 8) & 0xff];
break;
case 0xb5: /* OR L */
AF = xororTable[((AF >> 8) | HL) & 0xff];
break;
case 0xb6: /* OR (HL) */
AF = xororTable[((AF >> 8) | GET_BYTE(HL)) & 0xff];
break;
case 0xb7: /* OR A */
AF = xororTable[(AF >> 8) & 0xff];
break;
case 0xb8: /* CP B */
temp = HIGH_REGISTER(BC);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
(SET_PV) | cbits2Table[cbits & 0x1ff];
break;
case 0xb9: /* CP C */
temp = LOW_REGISTER(BC);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
(SET_PV) | cbits2Table[cbits & 0x1ff];
break;
case 0xba: /* CP D */
temp = HIGH_REGISTER(DE);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
(SET_PV) | cbits2Table[cbits & 0x1ff];
break;
case 0xbb: /* CP E */
temp = LOW_REGISTER(DE);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
(SET_PV) | cbits2Table[cbits & 0x1ff];
break;
case 0xbc: /* CP H */
temp = HIGH_REGISTER(HL);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
(SET_PV) | cbits2Table[cbits & 0x1ff];
break;
case 0xbd: /* CP L */
temp = LOW_REGISTER(HL);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
(SET_PV) | cbits2Table[cbits & 0x1ff];
break;
case 0xbe: /* CP (HL) */
temp = GET_BYTE(HL);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
(SET_PV) | cbits2Table[cbits & 0x1ff];
break;
case 0xbf: /* CP A */
SET_LOW_REGISTER(AF, (HIGH_REGISTER(AF) & 0x28) | (chiptype == CHIP_TYPE_Z80 ? 0x42 : 0x46));
break;
case 0xc0: /* RET NZ */
if (!(TSTFLAG(Z)))
POP(PC);
break;
case 0xc1: /* POP BC */
POP(BC);
break;
case 0xc2: /* JP NZ,nnnn */
JPC(!TSTFLAG(Z));
break;
case 0xc3: /* JP nnnn */
JPC(1);
break;
case 0xc4: /* CALL NZ,nnnn */
CALLC(!TSTFLAG(Z));
break;
case 0xc5: /* PUSH BC */
PUSH(BC);
break;
case 0xc6: /* ADD A,nn */
temp = RAM_PP(PC);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0xc7: /* RST 0 */
PUSH(PC);
PC = 0;
break;
case 0xc8: /* RET Z */
if (TSTFLAG(Z))
POP(PC);
break;
case 0xc9: /* RET */
POP(PC);
break;
case 0xca: /* JP Z,nnnn */
JPC(TSTFLAG(Z));
break;
case 0xcb: /* CB prefix */
CHECK_CPU_8080;
INCR(1);
adr = HL;
switch ((op = GET_BYTE(PC)) & 7) {
case 0:
++PC;
acu = HIGH_REGISTER(BC);
break;
case 1:
++PC;
acu = LOW_REGISTER(BC);
break;
case 2:
++PC;
acu = HIGH_REGISTER(DE);
break;
case 3:
++PC;
acu = LOW_REGISTER(DE);
break;
case 4:
++PC;
acu = HIGH_REGISTER(HL);
break;
case 5:
++PC;
acu = LOW_REGISTER(HL);
break;
case 6:
++PC;
acu = GET_BYTE(adr);
break;
case 7:
++PC;
acu = HIGH_REGISTER(AF);
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 (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:
SET_HIGH_REGISTER(BC, temp);
break;
case 1:
SET_LOW_REGISTER(BC, temp);
break;
case 2:
SET_HIGH_REGISTER(DE, temp);
break;
case 3:
SET_LOW_REGISTER(DE, temp);
break;
case 4:
SET_HIGH_REGISTER(HL, temp);
break;
case 5:
SET_LOW_REGISTER(HL, temp);
break;
case 6:
PUT_BYTE(adr, temp);
break;
case 7:
SET_HIGH_REGISTER(AF, temp);
break;
}
break;
case 0xcc: /* CALL Z,nnnn */
CALLC(TSTFLAG(Z));
break;
case 0xcd: /* CALL nnnn */
CALLC(1);
break;
case 0xce: /* ADC A,nn */
temp = RAM_PP(PC);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
break;
case 0xcf: /* RST 8 */
PUSH(PC);
PC = 8;
break;
case 0xd0: /* RET NC */
if (!(TSTFLAG(C)))
POP(PC);
break;
case 0xd1: /* POP DE */
POP(DE);
break;
case 0xd2: /* JP NC,nnnn */
JPC(!TSTFLAG(C));
break;
case 0xd3: /* OUT (nn),A */
out(RAM_PP(PC), HIGH_REGISTER(AF));
break;
case 0xd4: /* CALL NC,nnnn */
CALLC(!TSTFLAG(C));
break;
case 0xd5: /* PUSH DE */
PUSH(DE);
break;
case 0xd6: /* SUB nn */
temp = RAM_PP(PC);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0xd7: /* RST 10H */
PUSH(PC);
PC = 0x10;
break;
case 0xd8: /* RET C */
if (TSTFLAG(C))
POP(PC);
break;
case 0xd9: /* EXX */
CHECK_CPU_8080;
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 */
JPC(TSTFLAG(C));
break;
case 0xdb: /* IN A,(nn) */
SET_HIGH_REGISTER(AF, in(RAM_PP(PC)));
break;
case 0xdc: /* CALL C,nnnn */
CALLC(TSTFLAG(C));
break;
case 0xdd: /* DD prefix */
CHECK_CPU_8080;
INCR(1);
switch (RAM_PP(PC)) {
case 0x09: /* ADD IX,BC */
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 */
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 */
IX = GET_WORD(PC);
PC += 2;
break;
case 0x22: /* LD (nnnn),IX */
temp = GET_WORD(PC);
PUT_WORD(temp, IX);
PC += 2;
break;
case 0x23: /* INC IX */
++IX;
break;
case 0x24: /* INC IXH */
IX += 0x100;
AF = (AF & ~0xfe) | incZ80Table[HIGH_REGISTER(IX)];
break;
case 0x25: /* DEC IXH */
IX -= 0x100;
AF = (AF & ~0xfe) | decZ80Table[HIGH_REGISTER(IX)];
break;
case 0x26: /* LD IXH,nn */
SET_HIGH_REGISTER(IX, RAM_PP(PC));
break;
case 0x29: /* ADD IX,IX */
IX &= ADDRMASK;
sum = IX + IX;
AF = (AF & ~0x3b) | cbitsDup16Table[sum >> 8];
IX = sum;
break;
case 0x2a: /* LD IX,(nnnn) */
temp = GET_WORD(PC);
IX = GET_WORD(temp);
PC += 2;
break;
case 0x2b: /* DEC IX */
--IX;
break;
case 0x2c: /* INC IXL */
temp = LOW_REGISTER(IX) + 1;
SET_LOW_REGISTER(IX, temp);
AF = (AF & ~0xfe) | incZ80Table[temp];
break;
case 0x2d: /* DEC IXL */
temp = LOW_REGISTER(IX) - 1;
SET_LOW_REGISTER(IX, temp);
AF = (AF & ~0xfe) | decZ80Table[temp & 0xff];
break;
case 0x2e: /* LD IXL,nn */
SET_LOW_REGISTER(IX, RAM_PP(PC));
break;
case 0x34: /* INC (IX+dd) */
adr = IX + (int8) RAM_PP(PC);
temp = GET_BYTE(adr) + 1;
PUT_BYTE(adr, temp);
AF = (AF & ~0xfe) | incZ80Table[temp];
break;
case 0x35: /* DEC (IX+dd) */
adr = IX + (int8) RAM_PP(PC);
temp = GET_BYTE(adr) - 1;
PUT_BYTE(adr, temp);
AF = (AF & ~0xfe) | decZ80Table[temp & 0xff];
break;
case 0x36: /* LD (IX+dd),nn */
adr = IX + (int8) RAM_PP(PC);
PUT_BYTE(adr, RAM_PP(PC));
break;
case 0x39: /* ADD IX,SP */
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 */
SET_HIGH_REGISTER(BC, HIGH_REGISTER(IX));
break;
case 0x45: /* LD B,IXL */
SET_HIGH_REGISTER(BC, LOW_REGISTER(IX));
break;
case 0x46: /* LD B,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
SET_HIGH_REGISTER(BC, GET_BYTE(adr));
break;
case 0x4c: /* LD C,IXH */
SET_LOW_REGISTER(BC, HIGH_REGISTER(IX));
break;
case 0x4d: /* LD C,IXL */
SET_LOW_REGISTER(BC, LOW_REGISTER(IX));
break;
case 0x4e: /* LD C,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
SET_LOW_REGISTER(BC, GET_BYTE(adr));
break;
case 0x54: /* LD D,IXH */
SET_HIGH_REGISTER(DE, HIGH_REGISTER(IX));
break;
case 0x55: /* LD D,IXL */
SET_HIGH_REGISTER(DE, LOW_REGISTER(IX));
break;
case 0x56: /* LD D,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
SET_HIGH_REGISTER(DE, GET_BYTE(adr));
break;
case 0x5c: /* LD E,IXH */
SET_LOW_REGISTER(DE, HIGH_REGISTER(IX));
break;
case 0x5d: /* LD E,IXL */
SET_LOW_REGISTER(DE, LOW_REGISTER(IX));
break;
case 0x5e: /* LD E,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
SET_LOW_REGISTER(DE, GET_BYTE(adr));
break;
case 0x60: /* LD IXH,B */
SET_HIGH_REGISTER(IX, HIGH_REGISTER(BC));
break;
case 0x61: /* LD IXH,C */
SET_HIGH_REGISTER(IX, LOW_REGISTER(BC));
break;
case 0x62: /* LD IXH,D */
SET_HIGH_REGISTER(IX, HIGH_REGISTER(DE));
break;
case 0x63: /* LD IXH,E */
SET_HIGH_REGISTER(IX, LOW_REGISTER(DE));
break;
case 0x64: /* LD IXH,IXH */
break;
case 0x65: /* LD IXH,IXL */
SET_HIGH_REGISTER(IX, LOW_REGISTER(IX));
break;
case 0x66: /* LD H,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
SET_HIGH_REGISTER(HL, GET_BYTE(adr));
break;
case 0x67: /* LD IXH,A */
SET_HIGH_REGISTER(IX, HIGH_REGISTER(AF));
break;
case 0x68: /* LD IXL,B */
SET_LOW_REGISTER(IX, HIGH_REGISTER(BC));
break;
case 0x69: /* LD IXL,C */
SET_LOW_REGISTER(IX, LOW_REGISTER(BC));
break;
case 0x6a: /* LD IXL,D */
SET_LOW_REGISTER(IX, HIGH_REGISTER(DE));
break;
case 0x6b: /* LD IXL,E */
SET_LOW_REGISTER(IX, LOW_REGISTER(DE));
break;
case 0x6c: /* LD IXL,IXH */
SET_LOW_REGISTER(IX, HIGH_REGISTER(IX));
break;
case 0x6d: /* LD IXL,IXL */
break;
case 0x6e: /* LD L,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
SET_LOW_REGISTER(HL, GET_BYTE(adr));
break;
case 0x6f: /* LD IXL,A */
SET_LOW_REGISTER(IX, HIGH_REGISTER(AF));
break;
case 0x70: /* LD (IX+dd),B */
adr = IX + (int8) RAM_PP(PC);
PUT_BYTE(adr, HIGH_REGISTER(BC));
break;
case 0x71: /* LD (IX+dd),C */
adr = IX + (int8) RAM_PP(PC);
PUT_BYTE(adr, LOW_REGISTER(BC));
break;
case 0x72: /* LD (IX+dd),D */
adr = IX + (int8) RAM_PP(PC);
PUT_BYTE(adr, HIGH_REGISTER(DE));
break;
case 0x73: /* LD (IX+dd),E */
adr = IX + (int8) RAM_PP(PC);
PUT_BYTE(adr, LOW_REGISTER(DE));
break;
case 0x74: /* LD (IX+dd),H */
adr = IX + (int8) RAM_PP(PC);
PUT_BYTE(adr, HIGH_REGISTER(HL));
break;
case 0x75: /* LD (IX+dd),L */
adr = IX + (int8) RAM_PP(PC);
PUT_BYTE(adr, LOW_REGISTER(HL));
break;
case 0x77: /* LD (IX+dd),A */
adr = IX + (int8) RAM_PP(PC);
PUT_BYTE(adr, HIGH_REGISTER(AF));
break;
case 0x7c: /* LD A,IXH */
SET_HIGH_REGISTER(AF, HIGH_REGISTER(IX));
break;
case 0x7d: /* LD A,IXL */
SET_HIGH_REGISTER(AF, LOW_REGISTER(IX));
break;
case 0x7e: /* LD A,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
SET_HIGH_REGISTER(AF, GET_BYTE(adr));
break;
case 0x84: /* ADD A,IXH */
temp = HIGH_REGISTER(IX);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x85: /* ADD A,IXL */
temp = LOW_REGISTER(IX);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x86: /* ADD A,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x8c: /* ADC A,IXH */
temp = HIGH_REGISTER(IX);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x8d: /* ADC A,IXL */
temp = LOW_REGISTER(IX);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x8e: /* ADC A,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x96: /* SUB (IX+dd) */
adr = IX + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
acu = HIGH_REGISTER(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 */
temp = HIGH_REGISTER(IX);
acu = HIGH_REGISTER(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 */
temp = LOW_REGISTER(IX);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
break;
case 0x9e: /* SBC A,(IX+dd) */
adr = IX + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
break;
case 0xa4: /* AND IXH */
AF = andTable[((AF & IX) >> 8) & 0xff];
break;
case 0xa5: /* AND IXL */
AF = andTable[((AF >> 8) & IX) & 0xff];
break;
case 0xa6: /* AND (IX+dd) */
adr = IX + (int8) RAM_PP(PC);
AF = andTable[((AF >> 8) & GET_BYTE(adr)) & 0xff];
break;
case 0xac: /* XOR IXH */
AF = xororTable[((AF ^ IX) >> 8) & 0xff];
break;
case 0xad: /* XOR IXL */
AF = xororTable[((AF >> 8) ^ IX) & 0xff];
break;
case 0xae: /* XOR (IX+dd) */
adr = IX + (int8) RAM_PP(PC);
AF = xororTable[((AF >> 8) ^ GET_BYTE(adr)) & 0xff];
break;
case 0xb4: /* OR IXH */
AF = xororTable[((AF | IX) >> 8) & 0xff];
break;
case 0xb5: /* OR IXL */
AF = xororTable[((AF >> 8) | IX) & 0xff];
break;
case 0xb6: /* OR (IX+dd) */
adr = IX + (int8) RAM_PP(PC);
AF = xororTable[((AF >> 8) | GET_BYTE(adr)) & 0xff];
break;
case 0xbc: /* CP IXH */
temp = HIGH_REGISTER(IX);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
break;
case 0xbd: /* CP IXL */
temp = LOW_REGISTER(IX);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
break;
case 0xbe: /* CP (IX+dd) */
adr = IX + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(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 = GET_BYTE(PC)) & 7) {
case 0:
++PC;
acu = HIGH_REGISTER(BC);
break;
case 1:
++PC;
acu = LOW_REGISTER(BC);
break;
case 2:
++PC;
acu = HIGH_REGISTER(DE);
break;
case 3:
++PC;
acu = LOW_REGISTER(DE);
break;
case 4:
++PC;
acu = HIGH_REGISTER(HL);
break;
case 5:
++PC;
acu = LOW_REGISTER(HL);
break;
case 6:
++PC;
acu = GET_BYTE(adr);
break;
case 7:
++PC;
acu = HIGH_REGISTER(AF);
break;
}
switch (op & 0xc0) {
case 0x00: /* shift/rotate */
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 */
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:
SET_HIGH_REGISTER(BC, temp);
break;
case 1:
SET_LOW_REGISTER(BC, temp);
break;
case 2:
SET_HIGH_REGISTER(DE, temp);
break;
case 3:
SET_LOW_REGISTER(DE, temp);
break;
case 4:
SET_HIGH_REGISTER(HL, temp);
break;
case 5:
SET_LOW_REGISTER(HL, temp);
break;
case 6:
PUT_BYTE(adr, temp);
break;
case 7:
SET_HIGH_REGISTER(AF, temp);
break;
}
break;
case 0xe1: /* POP IX */
POP(IX);
break;
case 0xe3: /* EX (SP),IX */
temp = IX;
POP(IX);
PUSH(temp);
break;
case 0xe5: /* PUSH IX */
PUSH(IX);
break;
case 0xe9: /* JP (IX) */
PC = IX;
break;
case 0xf9: /* LD SP,IX */
SP = IX;
break;
default: /* ignore DD */
CHECK_CPU_Z80;
PC--;
}
break;
case 0xde: /* SBC A,nn */
temp = RAM_PP(PC);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
cbits = acu ^ temp ^ sum;
AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
break;
case 0xdf: /* RST 18H */
PUSH(PC);
PC = 0x18;
break;
case 0xe0: /* RET PO */
if (!(TSTFLAG(P)))
POP(PC);
break;
case 0xe1: /* POP HL */
POP(HL);
break;
case 0xe2: /* JP PO,nnnn */
JPC(!TSTFLAG(P));
break;
case 0xe3: /* EX (SP),HL */
temp = HL;
POP(HL);
PUSH(temp);
break;
case 0xe4: /* CALL PO,nnnn */
CALLC(!TSTFLAG(P));
break;
case 0xe5: /* PUSH HL */
PUSH(HL);
break;
case 0xe6: /* AND nn */
AF = andTable[((AF >> 8) & RAM_PP(PC)) & 0xff];
break;
case 0xe7: /* RST 20H */
PUSH(PC);
PC = 0x20;
break;
case 0xe8: /* RET PE */
if (TSTFLAG(P))
POP(PC);
break;
case 0xe9: /* JP (HL) */
PC = HL;
break;
case 0xea: /* JP PE,nnnn */
JPC(TSTFLAG(P));
break;
case 0xeb: /* EX DE,HL */
temp = HL;
HL = DE;
DE = temp;
break;
case 0xec: /* CALL PE,nnnn */
CALLC(TSTFLAG(P));
break;
case 0xed: /* ED prefix */
CHECK_CPU_8080;
INCR(1);
switch (RAM_PP(PC)) {
case 0x40: /* IN B,(C) */
temp = in(LOW_REGISTER(BC));
SET_HIGH_REGISTER(BC, temp);
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
break;
case 0x41: /* OUT (C),B */
out(LOW_REGISTER(BC), HIGH_REGISTER(BC));
break;
case 0x42: /* SBC HL,BC */
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 */
temp = GET_WORD(PC);
PUT_WORD(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 */
temp = HIGH_REGISTER(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 */
IFF_S |= IFF_S >> 1;
POP(PC);
break;
case 0x46: /* IM 0 */
/* interrupt mode 0 */
break;
case 0x47: /* LD I,A */
IR_S = (IR_S & 0xff) | (AF & ~0xff);
break;
case 0x48: /* IN C,(C) */
temp = in(LOW_REGISTER(BC));
SET_LOW_REGISTER(BC, temp);
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
break;
case 0x49: /* OUT (C),C */
out(LOW_REGISTER(BC), LOW_REGISTER(BC));
break;
case 0x4a: /* ADC HL,BC */
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) */
temp = GET_WORD(PC);
BC = GET_WORD(temp);
PC += 2;
break;
case 0x4d: /* RETI */
IFF_S |= IFF_S >> 1;
POP(PC);
break;
case 0x4f: /* LD R,A */
IR_S = (IR_S & ~0xff) | ((AF >> 8) & 0xff);
break;
case 0x50: /* IN D,(C) */
temp = in(LOW_REGISTER(BC));
SET_HIGH_REGISTER(DE, temp);
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
break;
case 0x51: /* OUT (C),D */
out(LOW_REGISTER(BC), HIGH_REGISTER(DE));
break;
case 0x52: /* SBC HL,DE */
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 */
temp = GET_WORD(PC);
PUT_WORD(temp, DE);
PC += 2;
break;
case 0x56: /* IM 1 */
/* interrupt mode 1 */
break;
case 0x57: /* LD A,I */
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) */
temp = in(LOW_REGISTER(BC));
SET_LOW_REGISTER(DE, temp);
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
break;
case 0x59: /* OUT (C),E */
out(LOW_REGISTER(BC), LOW_REGISTER(DE));
break;
case 0x5a: /* ADC HL,DE */
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) */
temp = GET_WORD(PC);
DE = GET_WORD(temp);
PC += 2;
break;
case 0x5e: /* IM 2 */
/* interrupt mode 2 */
break;
case 0x5f: /* LD A,R */
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) */
temp = in(LOW_REGISTER(BC));
SET_HIGH_REGISTER(HL, temp);
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
break;
case 0x61: /* OUT (C),H */
out(LOW_REGISTER(BC), HIGH_REGISTER(HL));
break;
case 0x62: /* SBC HL,HL */
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 */
temp = GET_WORD(PC);
PUT_WORD(temp, HL);
PC += 2;
break;
case 0x67: /* RRD */
temp = GET_BYTE(HL);
acu = HIGH_REGISTER(AF);
PUT_BYTE(HL, HIGH_DIGIT(temp) | (LOW_DIGIT(acu) << 4));
AF = rrdrldTable[(acu & 0xf0) | LOW_DIGIT(temp)] | (AF & 1);
break;
case 0x68: /* IN L,(C) */
temp = in(LOW_REGISTER(BC));
SET_LOW_REGISTER(HL, temp);
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
break;
case 0x69: /* OUT (C),L */
out(LOW_REGISTER(BC), LOW_REGISTER(HL));
break;
case 0x6a: /* ADC HL,HL */
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) */
temp = GET_WORD(PC);
HL = GET_WORD(temp);
PC += 2;
break;
case 0x6f: /* RLD */
temp = GET_BYTE(HL);
acu = HIGH_REGISTER(AF);
PUT_BYTE(HL, (LOW_DIGIT(temp) << 4) | LOW_DIGIT(acu));
AF = rrdrldTable[(acu & 0xf0) | HIGH_DIGIT(temp)] | (AF & 1);
break;
case 0x70: /* IN (C) */
temp = in(LOW_REGISTER(BC));
SET_LOW_REGISTER(temp, temp);
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
break;
case 0x71: /* OUT (C),0 */
out(LOW_REGISTER(BC), 0);
break;
case 0x72: /* SBC HL,SP */
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 */
temp = GET_WORD(PC);
PUT_WORD(temp, SP);
PC += 2;
break;
case 0x78: /* IN A,(C) */
temp = in(LOW_REGISTER(BC));
SET_HIGH_REGISTER(AF, temp);
AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
break;
case 0x79: /* OUT (C),A */
out(LOW_REGISTER(BC), HIGH_REGISTER(AF));
break;
case 0x7a: /* ADC HL,SP */
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) */
temp = GET_WORD(PC);
SP = GET_WORD(temp);
PC += 2;
break;
case 0xa0: /* LDI */
acu = RAM_PP(HL);
PUT_BYTE_PP(DE, acu);
acu += HIGH_REGISTER(AF);
AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4) |
(((--BC & ADDRMASK) != 0) << 2);
break;
case 0xa1: /* CPI */
acu = HIGH_REGISTER(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;
/* SF, ZF, YF, XF flags are affected by decreasing register B, as in DEC B.
NF flag A is copy of bit 7 of the value read from or written to an I/O port.
INI/INIR/IND/INDR use the C flag in stead of the L register. There is a
catch though, because not the value of C is used, but C + 1 if it's INI/INIR or
C - 1 if it's IND/INDR. So, first of all INI/INIR:
HF and CF Both set if ((HL) + ((C + 1) & 255) > 255)
PF The parity of (((HL) + ((C + 1) & 255)) & 7) xor B) */
case 0xa2: /* INI */
acu = in(LOW_REGISTER(BC));
PUT_BYTE(HL, acu);
++HL;
temp = HIGH_REGISTER(BC);
BC -= 0x100;
INOUTFLAGS_NONZERO((LOW_REGISTER(BC) + 1) & 0xff);
break;
/* SF, ZF, YF, XF flags are affected by decreasing register B, as in DEC B.
NF flag A is copy of bit 7 of the value read from or written to an I/O port.
And now the for OUTI/OTIR/OUTD/OTDR instructions. Take state of the L
after the increment or decrement of HL; add the value written to the I/O port
to; call that k for now. If k > 255, then the CF and HF flags are set. The PF
flags is set like the parity of k bitwise and'ed with 7, bitwise xor'ed with B.
HF and CF Both set if ((HL) + L > 255)
PF The parity of ((((HL) + L) & 7) xor B) */
case 0xa3: /* OUTI */
acu = GET_BYTE(HL);
out(LOW_REGISTER(BC), acu);
++HL;
temp = HIGH_REGISTER(BC);
BC -= 0x100;
INOUTFLAGS_NONZERO(LOW_REGISTER(HL));
break;
case 0xa8: /* LDD */
acu = RAM_MM(HL);
PUT_BYTE_MM(DE, acu);
acu += HIGH_REGISTER(AF);
AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4) |
(((--BC & ADDRMASK) != 0) << 2);
break;
case 0xa9: /* CPD */
acu = HIGH_REGISTER(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;
/* SF, ZF, YF, XF flags are affected by decreasing register B, as in DEC B.
NF flag A is copy of bit 7 of the value read from or written to an I/O port.
INI/INIR/IND/INDR use the C flag in stead of the L register. There is a
catch though, because not the value of C is used, but C + 1 if it's INI/INIR or
C - 1 if it's IND/INDR. And last IND/INDR:
HF and CF Both set if ((HL) + ((C - 1) & 255) > 255)
PF The parity of (((HL) + ((C - 1) & 255)) & 7) xor B) */
case 0xaa: /* IND */
acu = in(LOW_REGISTER(BC));
PUT_BYTE(HL, acu);
--HL;
temp = HIGH_REGISTER(BC);
BC -= 0x100;
INOUTFLAGS_NONZERO((LOW_REGISTER(BC) - 1) & 0xff);
break;
case 0xab: /* OUTD */
acu = GET_BYTE(HL);
out(LOW_REGISTER(BC), acu);
--HL;
temp = HIGH_REGISTER(BC);
BC -= 0x100;
INOUTFLAGS_NONZERO(LOW_REGISTER(HL));
break;
case 0xb0: /* LDIR */
BC &= ADDRMASK;
if (BC == 0)
BC = 0x10000;
do {
INCR(2);
acu = RAM_PP(HL);
PUT_BYTE_PP(DE, acu);
} while (--BC);
acu += HIGH_REGISTER(AF);
AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4);
break;
case 0xb1: /* CPIR */
acu = HIGH_REGISTER(AF);
BC &= ADDRMASK;
if (BC == 0)
BC = 0x10000;
do {
INCR(1);
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 */
temp = HIGH_REGISTER(BC);
if (temp == 0)
temp = 0x100;
do {
INCR(1);
acu = in(LOW_REGISTER(BC));
PUT_BYTE(HL, acu);
++HL;
} while (--temp);
temp = HIGH_REGISTER(BC);
SET_HIGH_REGISTER(BC, 0);
INOUTFLAGS_ZERO((LOW_REGISTER(BC) + 1) & 0xff);
break;
case 0xb3: /* OTIR */
temp = HIGH_REGISTER(BC);
if (temp == 0)
temp = 0x100;
do {
INCR(1);
acu = GET_BYTE(HL);
out(LOW_REGISTER(BC), acu);
++HL;
} while (--temp);
temp = HIGH_REGISTER(BC);
SET_HIGH_REGISTER(BC, 0);
INOUTFLAGS_ZERO(LOW_REGISTER(HL));
break;
case 0xb8: /* LDDR */
BC &= ADDRMASK;
if (BC == 0)
BC = 0x10000;
do {
INCR(2);
acu = RAM_MM(HL);
PUT_BYTE_MM(DE, acu);
} while (--BC);
acu += HIGH_REGISTER(AF);
AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4);
break;
case 0xb9: /* CPDR */
acu = HIGH_REGISTER(AF);
BC &= ADDRMASK;
if (BC == 0)
BC = 0x10000;
do {
INCR(1);
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 */
temp = HIGH_REGISTER(BC);
if (temp == 0)
temp = 0x100;
do {
INCR(1);
acu = in(LOW_REGISTER(BC));
PUT_BYTE(HL, acu);
--HL;
} while (--temp);
temp = HIGH_REGISTER(BC);
SET_HIGH_REGISTER(BC, 0);
INOUTFLAGS_ZERO((LOW_REGISTER(BC) - 1) & 0xff);
break;
case 0xbb: /* OTDR */
temp = HIGH_REGISTER(BC);
if (temp == 0)
temp = 0x100;
do {
INCR(1);
acu = GET_BYTE(HL);
out(LOW_REGISTER(BC), acu);
--HL;
} while (--temp);
temp = HIGH_REGISTER(BC);
SET_HIGH_REGISTER(BC, 0);
INOUTFLAGS_ZERO(LOW_REGISTER(HL));
break;
default: /* ignore ED and following byte */
CHECK_CPU_Z80;
}
break;
case 0xee: /* XOR nn */
AF = xororTable[((AF >> 8) ^ RAM_PP(PC)) & 0xff];
break;
case 0xef: /* RST 28H */
PUSH(PC);
PC = 0x28;
break;
case 0xf0: /* RET P */
if (!(TSTFLAG(S)))
POP(PC);
break;
case 0xf1: /* POP AF */
POP(AF);
break;
case 0xf2: /* JP P,nnnn */
JPC(!TSTFLAG(S));
break;
case 0xf3: /* DI */
IFF_S = 0;
break;
case 0xf4: /* CALL P,nnnn */
CALLC(!TSTFLAG(S));
break;
case 0xf5: /* PUSH AF */
PUSH(AF);
break;
case 0xf6: /* OR nn */
AF = xororTable[((AF >> 8) | RAM_PP(PC)) & 0xff];
break;
case 0xf7: /* RST 30H */
PUSH(PC);
PC = 0x30;
break;
case 0xf8: /* RET M */
if (TSTFLAG(S))
POP(PC);
break;
case 0xf9: /* LD SP,HL */
SP = HL;
break;
case 0xfa: /* JP M,nnnn */
JPC(TSTFLAG(S));
break;
case 0xfb: /* EI */
IFF_S = 3;
break;
case 0xfc: /* CALL M,nnnn */
CALLC(TSTFLAG(S));
break;
case 0xfd: /* FD prefix */
CHECK_CPU_8080;
INCR(1);
switch (RAM_PP(PC)) {
case 0x09: /* ADD IY,BC */
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 */
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 */
IY = GET_WORD(PC);
PC += 2;
break;
case 0x22: /* LD (nnnn),IY */
temp = GET_WORD(PC);
PUT_WORD(temp, IY);
PC += 2;
break;
case 0x23: /* INC IY */
++IY;
break;
case 0x24: /* INC IYH */
IY += 0x100;
AF = (AF & ~0xfe) | incZ80Table[HIGH_REGISTER(IY)];
break;
case 0x25: /* DEC IYH */
IY -= 0x100;
AF = (AF & ~0xfe) | decZ80Table[HIGH_REGISTER(IY)];
break;
case 0x26: /* LD IYH,nn */
SET_HIGH_REGISTER(IY, RAM_PP(PC));
break;
case 0x29: /* ADD IY,IY */
IY &= ADDRMASK;
sum = IY + IY;
AF = (AF & ~0x3b) | cbitsDup16Table[sum >> 8];
IY = sum;
break;
case 0x2a: /* LD IY,(nnnn) */
temp = GET_WORD(PC);
IY = GET_WORD(temp);
PC += 2;
break;
case 0x2b: /* DEC IY */
--IY;
break;
case 0x2c: /* INC IYL */
temp = LOW_REGISTER(IY) + 1;
SET_LOW_REGISTER(IY, temp);
AF = (AF & ~0xfe) | incZ80Table[temp];
break;
case 0x2d: /* DEC IYL */
temp = LOW_REGISTER(IY) - 1;
SET_LOW_REGISTER(IY, temp);
AF = (AF & ~0xfe) | decZ80Table[temp & 0xff];
break;
case 0x2e: /* LD IYL,nn */
SET_LOW_REGISTER(IY, RAM_PP(PC));
break;
case 0x34: /* INC (IY+dd) */
adr = IY + (int8) RAM_PP(PC);
temp = GET_BYTE(adr) + 1;
PUT_BYTE(adr, temp);
AF = (AF & ~0xfe) | incZ80Table[temp];
break;
case 0x35: /* DEC (IY+dd) */
adr = IY + (int8) RAM_PP(PC);
temp = GET_BYTE(adr) - 1;
PUT_BYTE(adr, temp);
AF = (AF & ~0xfe) | decZ80Table[temp & 0xff];
break;
case 0x36: /* LD (IY+dd),nn */
adr = IY + (int8) RAM_PP(PC);
PUT_BYTE(adr, RAM_PP(PC));
break;
case 0x39: /* ADD IY,SP */
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 */
SET_HIGH_REGISTER(BC, HIGH_REGISTER(IY));
break;
case 0x45: /* LD B,IYL */
SET_HIGH_REGISTER(BC, LOW_REGISTER(IY));
break;
case 0x46: /* LD B,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
SET_HIGH_REGISTER(BC, GET_BYTE(adr));
break;
case 0x4c: /* LD C,IYH */
SET_LOW_REGISTER(BC, HIGH_REGISTER(IY));
break;
case 0x4d: /* LD C,IYL */
SET_LOW_REGISTER(BC, LOW_REGISTER(IY));
break;
case 0x4e: /* LD C,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
SET_LOW_REGISTER(BC, GET_BYTE(adr));
break;
case 0x54: /* LD D,IYH */
SET_HIGH_REGISTER(DE, HIGH_REGISTER(IY));
break;
case 0x55: /* LD D,IYL */
SET_HIGH_REGISTER(DE, LOW_REGISTER(IY));
break;
case 0x56: /* LD D,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
SET_HIGH_REGISTER(DE, GET_BYTE(adr));
break;
case 0x5c: /* LD E,IYH */
SET_LOW_REGISTER(DE, HIGH_REGISTER(IY));
break;
case 0x5d: /* LD E,IYL */
SET_LOW_REGISTER(DE, LOW_REGISTER(IY));
break;
case 0x5e: /* LD E,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
SET_LOW_REGISTER(DE, GET_BYTE(adr));
break;
case 0x60: /* LD IYH,B */
SET_HIGH_REGISTER(IY, HIGH_REGISTER(BC));
break;
case 0x61: /* LD IYH,C */
SET_HIGH_REGISTER(IY, LOW_REGISTER(BC));
break;
case 0x62: /* LD IYH,D */
SET_HIGH_REGISTER(IY, HIGH_REGISTER(DE));
break;
case 0x63: /* LD IYH,E */
SET_HIGH_REGISTER(IY, LOW_REGISTER(DE));
break;
case 0x64: /* LD IYH,IYH */
break;
case 0x65: /* LD IYH,IYL */
SET_HIGH_REGISTER(IY, LOW_REGISTER(IY));
break;
case 0x66: /* LD H,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
SET_HIGH_REGISTER(HL, GET_BYTE(adr));
break;
case 0x67: /* LD IYH,A */
SET_HIGH_REGISTER(IY, HIGH_REGISTER(AF));
break;
case 0x68: /* LD IYL,B */
SET_LOW_REGISTER(IY, HIGH_REGISTER(BC));
break;
case 0x69: /* LD IYL,C */
SET_LOW_REGISTER(IY, LOW_REGISTER(BC));
break;
case 0x6a: /* LD IYL,D */
SET_LOW_REGISTER(IY, HIGH_REGISTER(DE));
break;
case 0x6b: /* LD IYL,E */
SET_LOW_REGISTER(IY, LOW_REGISTER(DE));
break;
case 0x6c: /* LD IYL,IYH */
SET_LOW_REGISTER(IY, HIGH_REGISTER(IY));
break;
case 0x6d: /* LD IYL,IYL */
break;
case 0x6e: /* LD L,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
SET_LOW_REGISTER(HL, GET_BYTE(adr));
break;
case 0x6f: /* LD IYL,A */
SET_LOW_REGISTER(IY, HIGH_REGISTER(AF));
break;
case 0x70: /* LD (IY+dd),B */
adr = IY + (int8) RAM_PP(PC);
PUT_BYTE(adr, HIGH_REGISTER(BC));
break;
case 0x71: /* LD (IY+dd),C */
adr = IY + (int8) RAM_PP(PC);
PUT_BYTE(adr, LOW_REGISTER(BC));
break;
case 0x72: /* LD (IY+dd),D */
adr = IY + (int8) RAM_PP(PC);
PUT_BYTE(adr, HIGH_REGISTER(DE));
break;
case 0x73: /* LD (IY+dd),E */
adr = IY + (int8) RAM_PP(PC);
PUT_BYTE(adr, LOW_REGISTER(DE));
break;
case 0x74: /* LD (IY+dd),H */
adr = IY + (int8) RAM_PP(PC);
PUT_BYTE(adr, HIGH_REGISTER(HL));
break;
case 0x75: /* LD (IY+dd),L */
adr = IY + (int8) RAM_PP(PC);
PUT_BYTE(adr, LOW_REGISTER(HL));
break;
case 0x77: /* LD (IY+dd),A */
adr = IY + (int8) RAM_PP(PC);
PUT_BYTE(adr, HIGH_REGISTER(AF));
break;
case 0x7c: /* LD A,IYH */
SET_HIGH_REGISTER(AF, HIGH_REGISTER(IY));
break;
case 0x7d: /* LD A,IYL */
SET_HIGH_REGISTER(AF, LOW_REGISTER(IY));
break;
case 0x7e: /* LD A,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
SET_HIGH_REGISTER(AF, GET_BYTE(adr));
break;
case 0x84: /* ADD A,IYH */
temp = HIGH_REGISTER(IY);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x85: /* ADD A,IYL */
temp = LOW_REGISTER(IY);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x86: /* ADD A,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
acu = HIGH_REGISTER(AF);
sum = acu + temp;
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x8c: /* ADC A,IYH */
temp = HIGH_REGISTER(IY);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x8d: /* ADC A,IYL */
temp = LOW_REGISTER(IY);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x8e: /* ADC A,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
acu = HIGH_REGISTER(AF);
sum = acu + temp + TSTFLAG(C);
AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
break;
case 0x96: /* SUB (IY+dd) */
adr = IY + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
acu = HIGH_REGISTER(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 */
temp = HIGH_REGISTER(IY);
acu = HIGH_REGISTER(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 */
temp = LOW_REGISTER(IY);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
break;
case 0x9e: /* SBC A,(IY+dd) */
adr = IY + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
acu = HIGH_REGISTER(AF);
sum = acu - temp - TSTFLAG(C);
AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
break;
case 0xa4: /* AND IYH */
AF = andTable[((AF & IY) >> 8) & 0xff];
break;
case 0xa5: /* AND IYL */
AF = andTable[((AF >> 8) & IY) & 0xff];
break;
case 0xa6: /* AND (IY+dd) */
adr = IY + (int8) RAM_PP(PC);
AF = andTable[((AF >> 8) & GET_BYTE(adr)) & 0xff];
break;
case 0xac: /* XOR IYH */
AF = xororTable[((AF ^ IY) >> 8) & 0xff];
break;
case 0xad: /* XOR IYL */
AF = xororTable[((AF >> 8) ^ IY) & 0xff];
break;
case 0xae: /* XOR (IY+dd) */
adr = IY + (int8) RAM_PP(PC);
AF = xororTable[((AF >> 8) ^ GET_BYTE(adr)) & 0xff];
break;
case 0xb4: /* OR IYH */
AF = xororTable[((AF | IY) >> 8) & 0xff];
break;
case 0xb5: /* OR IYL */
AF = xororTable[((AF >> 8) | IY) & 0xff];
break;
case 0xb6: /* OR (IY+dd) */
adr = IY + (int8) RAM_PP(PC);
AF = xororTable[((AF >> 8) | GET_BYTE(adr)) & 0xff];
break;
case 0xbc: /* CP IYH */
temp = HIGH_REGISTER(IY);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
break;
case 0xbd: /* CP IYL */
temp = LOW_REGISTER(IY);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
break;
case 0xbe: /* CP (IY+dd) */
adr = IY + (int8) RAM_PP(PC);
temp = GET_BYTE(adr);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(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 = GET_BYTE(PC)) & 7) {
case 0:
++PC;
acu = HIGH_REGISTER(BC);
break;
case 1:
++PC;
acu = LOW_REGISTER(BC);
break;
case 2:
++PC;
acu = HIGH_REGISTER(DE);
break;
case 3:
++PC;
acu = LOW_REGISTER(DE);
break;
case 4:
++PC;
acu = HIGH_REGISTER(HL);
break;
case 5:
++PC;
acu = LOW_REGISTER(HL);
break;
case 6:
++PC;
acu = GET_BYTE(adr);
break;
case 7:
++PC;
acu = HIGH_REGISTER(AF);
break;
}
switch (op & 0xc0) {
case 0x00: /* shift/rotate */
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 */
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:
SET_HIGH_REGISTER(BC, temp);
break;
case 1:
SET_LOW_REGISTER(BC, temp);
break;
case 2:
SET_HIGH_REGISTER(DE, temp);
break;
case 3:
SET_LOW_REGISTER(DE, temp);
break;
case 4:
SET_HIGH_REGISTER(HL, temp);
break;
case 5:
SET_LOW_REGISTER(HL, temp);
break;
case 6:
PUT_BYTE(adr, temp);
break;
case 7:
SET_HIGH_REGISTER(AF, temp);
break;
}
break;
case 0xe1: /* POP IY */
POP(IY);
break;
case 0xe3: /* EX (SP),IY */
temp = IY;
POP(IY);
PUSH(temp);
break;
case 0xe5: /* PUSH IY */
PUSH(IY);
break;
case 0xe9: /* JP (IY) */
PC = IY;
break;
case 0xf9: /* LD SP,IY */
SP = IY;
break;
default: /* ignore FD */
CHECK_CPU_Z80;
PC--;
}
break;
case 0xfe: /* CP nn */
temp = RAM_PP(PC);
AF = (AF & ~0x28) | (temp & 0x28);
acu = HIGH_REGISTER(AF);
sum = acu - temp;
cbits = acu ^ temp ^ sum;
AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
(SET_PV) | cbits2Table[cbits & 0x1ff];
break;
case 0xff: /* RST 38H */
PUSH(PC);
PC = 0x38;
}
}
end_decode:
/* simulation halted */
PC_S = (reason == STOP_OPCODE) ? PCX : PC;
AF_S = AF;
BC_S = BC;
DE_S = DE;
HL_S = HL;
IX_S = IX;
IY_S = IY;
SP_S = SP;
return reason;
}