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src.rivoreo.one / emulators / simh / 3cb7c60d5d46d8eae8b938c374b32c6b59239b52 / . / I7094 / i7094_sys.c
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/* i7094_sys.c: IBM 7094 simulator interface
Copyright (c) 2003-2006, Robert M Supnik
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
ROBERT M SUPNIK 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 Robert M Supnik shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Robert M Supnik.
29-Oct-06 RMS Added additional expanded core instructions
08-Jun-06 RMS Added Dave Pitts' binary loader
*/
#include "i7094_defs.h"
#include <ctype.h>
#include "i7094_dat.h"
extern DEVICE cpu_dev;
extern DEVICE ch_dev[NUM_CHAN];
extern DEVICE mt_dev[NUM_CHAN];
extern DEVICE drm_dev;
extern DEVICE dsk_dev;
extern DEVICE com_dev, coml_dev;
extern DEVICE cdr_dev, cdp_dev;
extern DEVICE lpt_dev;
extern DEVICE clk_dev;
extern UNIT cpu_unit;
extern REG cpu_reg[];
uint32 cvt_code_to_ascii (uint32 c, int32 sw);
uint32 cvt_ascii_to_code (uint32 c, int32 sw);
/* SCP data structures and interface routines
sim_name simulator name string
sim_PC pointer to saved PC register descriptor
sim_emax number of words for examine
sim_devices array of pointers to simulated devices
sim_stop_messages array of pointers to stop messages
sim_load binary loader
*/
char sim_name[] = "IBM 7094";
REG *sim_PC = &cpu_reg[0];
int32 sim_emax = 1;
DEVICE *sim_devices[] = {
&cpu_dev,
&clk_dev,
&ch_dev[0],
&ch_dev[1],
&ch_dev[2],
&ch_dev[3],
&ch_dev[4],
&ch_dev[5],
&ch_dev[6],
&ch_dev[7],
&mt_dev[0],
&mt_dev[1],
&mt_dev[2],
&mt_dev[3],
&mt_dev[4],
&mt_dev[5],
&mt_dev[6],
&mt_dev[7],
&cdr_dev,
&cdp_dev,
&lpt_dev,
&dsk_dev,
&drm_dev,
&com_dev,
&coml_dev,
NULL
};
char ch_bkpt_msg[] = "Channel A breakpoint, CLC: xxxxxx";
const char *sim_stop_messages[] = {
"Unknown error",
"HALT instruction",
"Breakpoint",
"Undefined instruction",
"Divide check",
"Nested XEC limit exceeded",
"Address stop",
"Non-existent channel",
"Illegal instruction for 7909 channel",
"Illegal instruction for non-7909 channel",
"Non-existent device",
"Undefined channel instruction",
"Write to protected device",
"Illegal instruction for device",
"Invalid 7631 track format",
"7750 buffer pool empty on input",
"7750 buffer pool empty on output",
"7750 invalid line number",
"7750 invalid message",
ch_bkpt_msg
};
/* Modify channel breakpoint message */
t_stat ch_bkpt (uint32 ch, uint32 clc)
{
ch_bkpt_msg[8] = 'A' + ch;
sprintf (&ch_bkpt_msg[27], "%06o", clc);
return STOP_CHBKPT;
}
/* Binary loader, not implemented */
t_stat sim_load (FILE *fileref, char *cptr, char *fnam, int flag)
{
extern t_stat binloader (FILE *fd, char *file, int loadpt);
if (flag == 0)
return binloader (fileref, cptr, 0);
return SCPE_NOFNC;
}
/* Symbol tables */
#define I_V_FL 39 /* inst class */
#define I_M_FL 017 /* class mask */
#define I_NOP 0000000000000000 /* no operand */
#define I_MXR 0010000000000000 /* addr(tag) */
#define I_MXN 0020000000000000 /* *addr(tag) */
#define I_MXV 0030000000000000 /* var mul/div */
#define I_MXC 0040000000000000 /* convert */
#define I_DNP 0050000000000000 /* decr, no oper */
#define I_DEC 0060000000000000 /* decrement */
#define I_SNS 0070000000000000 /* sense */
#define I_IMM 0100000000000000 /* 18b immediate */
#define I_TAG 0110000000000000 /* tag only */
#define I_IOX 0120000000000000 /* IO channel */
#define I_TCH 0130000000000000 /* transfer channel */
#define I_I9N 0140000000000000 /* 7909 with nostore */
#define I_I9S 0150000000000000 /* 7909 */
#define IFAKE_7607 0001000000000000 /* fake op extensions */
#define IFAKE_7909 0002000000000000
#define DFAKE (DMASK|IFAKE_7607|IFAKE_7909)
#define I_N_NOP 000
#define I_N_MXR 001
#define I_N_MXN 002
#define I_N_MXV 003
#define I_N_MXC 004
#define I_N_DNP 005
#define I_N_DEC 006
#define I_N_SNS 007
#define I_N_IMM 010
#define I_N_TAG 011
#define I_N_IOX 012
#define I_N_TCH 013
#define I_N_I9N 014
#define I_N_I9S 015
#define INST_P_XIT 0 /* exit */
#define INST_P_SKP 1 /* do not print */
#define INST_P_PRA 2 /* print always */
#define INST_P_PNZ 3 /* print if nz */
#define INST_P_PNT 4 /* print if nz, term */
static const t_uint64 masks[14] = {
03777700000000, 03777700000000,
03777700000000, 03777700000000,
03777400000000, 03700000000000,
03700000000000, 03777700077777,
03777700000000, 03777700000000,
03700000200000, 03700000200000,
03760000200000, 03740000200000 };
static const uint32 fld_max[14][3] = { /* addr,tag,decr limit */
{ INST_M_ADDR, INST_M_TAG, 0 },
{ INST_M_ADDR, INST_M_TAG, 0 },
{ INST_M_ADDR, INST_M_TAG, 0 },
{ INST_M_ADDR, INST_M_TAG, INST_M_VCNT },
{ INST_M_ADDR, INST_M_TAG, INST_M_CCNT },
{ INST_M_ADDR, INST_M_TAG, INST_M_DEC },
{ INST_M_ADDR, INST_M_TAG, INST_M_DEC },
{ 0, INST_M_TAG, 0 },
{ RMASK, 0, 0 },
{ INST_M_ADDR, INST_M_TAG, 0 },
{ INST_M_ADDR, 1, INST_M_DEC },
{ INST_M_ADDR, 1, 0 },
{ INST_M_ADDR, 1, 0 },
{ INST_M_ADDR, 1, 0 }
};
static const uint32 fld_fmt[14][3] = { /* addr,tag,decr print */
{ INST_P_PNT, INST_P_PNT, INST_P_XIT }, /* nop: all optional */
{ INST_P_PRA, INST_P_PNT, INST_P_XIT }, /* mxr: tag optional */
{ INST_P_PRA, INST_P_PNT, INST_P_XIT }, /* mxn: tag optional */
{ INST_P_PRA, INST_P_PNZ, INST_P_PRA }, /* mxv: tag optional */
{ INST_P_PRA, INST_P_PNZ, INST_P_PRA }, /* cvt: tag optional */
{ INST_P_PNT, INST_P_PNT, INST_P_PNT }, /* dnp: all optional */
{ INST_P_PRA, INST_P_PRA, INST_P_PRA }, /* dec: print all */
{ INST_P_SKP, INST_P_PNT, INST_P_XIT }, /* sns: skip addr, tag opt */
{ INST_P_PRA, INST_P_XIT, INST_P_XIT }, /* immediate: addr only */
{ INST_P_PNZ, INST_P_PRA, INST_P_XIT }, /* tag: addr optional */
{ INST_P_PRA, INST_P_PNZ, INST_P_PRA }, /* iox: tag optional */
{ INST_P_PRA, INST_P_PNT, INST_P_XIT }, /* tch: tag optional */
{ INST_P_PRA, INST_P_PNT, INST_P_XIT }, /* i9n: tag optional */
{ INST_P_PRA, INST_P_PNT, INST_P_XIT } /* i9s: tag optional */
};
static const t_uint64 ind_test[14] = {
0, 0, INST_IND, 0, 0, 0, 0,
0, 0, 0, CHI_IND, CHI_IND, CHI_IND, CHI_IND
};
static const char *opcode[] = {
"TXI", "TIX", "TXH",
"STR", "TNX", "TXL",
"HTR", "TRA", "TTR",
"CLM", "LBT", "CHS",
"SSP", "ENK", "IOT",
"COM", "ETM", "RND",
"FRN", "DCT", "RCT",
"LMTM", "SLF", "SLN1",
"SLN2", "SLN3", "SLN4",
"SWT1", "SWT2", "SWT3",
"SWT4", "SWT5", "SWT6",
"BTTA", "BTTB", "BTTC",
"BTTD", "BTTE", "BTTF",
"BTTG", "BTTH",
"RICA", "RICB", "RICC",
"RICD", "RICE", "RICF",
"RICG", "RICH",
"RDCA", "RDCB", "RDCC",
"RDCD", "RDCE", "RDCF",
"RDCG", "RDCH",
"TRCA", "TRCC",
"TRCE", "TRCG",
"TEFA", "TEFC",
"TEFE", "TEFG",
"TLQ", "IIA", "TIO",
"OAI", "PAI", "TIF",
"IIR", "RFT", "SIR",
"RNT", "RIR",
"TCOA", "TCOB", "TCOC",
"TCOD", "TCOE", "TCOF",
"TCOG", "TCOH", "TSX",
"TZE", "CVR", "TPL",
"XCA", "TOV",
"TQO", "TQP",
"MPY", "VLM", "VLM1",
"DVH", "DVP",
"VDH", "VDP",
"VDH2", "VDP2",
"FDH", "FDP",
"FMP", "DFMP",
"FAD", "DFAD",
"FSB", "DFSB",
"FAM", "DFAM",
"FSM", "DFSM",
"ANS", "ERA",
"CAS", "ACL",
"ADD", "ADM",
"SUB", "SBM",
"HPR", "IIS", "LDI",
"OSI", "DLD", "OFT",
"RIS", "ONT",
"CLA", "CLS",
"ZET", "XEC",
"LXA", "LAC",
"RCHA", "RCHC",
"RCHE", "RCHG",
"LCHA", "LCHC",
"LCHE", "LCHG",
"RSCA", "RSCC",
"RSCE", "RSCG",
"STCA", "STCC",
"STCE", "STCG",
"LDQ", "ENB",
"STZ", "STO", "SLW",
"STI", "STA", "STD",
"STT", "STP",
"SXA", "SCA",
"SCHA", "SCHC",
"SCHE", "SCHG",
"SCDA", "SCDC",
"SCDE", "SCDG",
"PAX", "PAC",
"PXA", "PCA",
"PSE", "NOP", "RDS",
"LLS", "BSR", "LRS",
"WRS", "ALS", "WEF",
"ARS", "REW", "AXT",
"SDN",
"CLM", "PBT", "EFTM",
"SSM", "LFTM", "ESTM",
"ECTM", "LTM", "LSNM",
"EMTM", "SLT1", "SLT2",
"SLT3", "SLT4",
"ETTA", "ETTB", "ETTC",
"ETTD", "ETTE", "ETTF",
"ETTG", "ETTH",
"ESNT",
"TRCB", "TRCD",
"TRCF", "TRCH",
"TEFB", "TEFD",
"TEFF", "TEFH",
"RIA", "PIA",
"IIL", "LFT", "SIL",
"LNT", "RIL",
"TCNA", "TCNB", "TCNC",
"TCND", "TCNE", "TCNF",
"TCNG", "TCNH",
"TNZ", "CVR", "TMI",
"XCL", "TNO", "CRQ",
"MPR", "DFDH", "DFDP",
"UFM", "DUFM",
"UFA", "DUFA",
"UFS", "DUFS",
"UAM", "DUAM",
"USM", "DUSM",
"ANA", "LAS",
"CAL", "ORA", "NZT",
"LXD", "LXC",
"RCHB", "RCHD",
"RCHF", "RCHH",
"LCHB", "LCHD",
"LCHF", "LCHH",
"RSCB", "RSCD",
"RSCF", "RSCH",
"STCB", "STCD",
"STCF", "STCH",
"STQ", "ORS", "DST",
"SLQ", "STL",
"SXD", "SCD",
"SCHB", "SCHD",
"SCHF", "SCHH",
"SCDB", "SCDD",
"SCDF", "SCDH",
"PDX", "PDC",
"PXD", "PCD",
"MSE", "LGL", "BSF",
"LGR", "RQL", "RUN",
"AXC",
"TIA", "TIB",
"LRI", "LPI",
"SEA", "SEB",
"IFT", "EFT",
"IOCD", "IOCDN", "TCH",
"IORP", "IORPN",
"IORT", "IORTN",
"IOCP", "IOCPN",
"IOCT", "IOCTN",
"IOSP", "IOSPN",
"IOST", "IOSTN",
"WTR", "XMT",
"TCH", "LIPT",
"CTL", "CTLN",
"CTLR", "CTLRN",
"CTLW", "CTLWN",
"SNS",
"LAR", "SAR", "TWT",
"CPYP",
"CPYD", "TCM",
"LIP", "TDC", "LCC",
"SMS", "ICC",
NULL
};
static const t_uint64 opc_v[] = {
0100000000000+I_DEC, 0200000000000+I_DEC, 0300000000000+I_DEC,
0500000000000+I_DNP, 0600000000000+I_DEC, 0700000000000+I_DEC,
0000000000000+I_MXN, 0002000000000+I_MXN, 0002100000000+I_MXN,
0076000000000+I_SNS, 0076000000001+I_SNS, 0076000000002+I_SNS,
0076000000003+I_SNS, 0076000000004+I_SNS, 0076000000005+I_SNS,
0076000000006+I_SNS, 0076000000007+I_SNS, 0076000000010+I_SNS,
0076000000011+I_SNS, 0076000000012+I_SNS, 0076000000014+I_SNS,
0076000000016+I_SNS, 0076000000140+I_SNS, 0076000000141+I_SNS,
0076000000142+I_SNS, 0076000000143+I_SNS, 0076000000144+I_SNS,
0076000000161+I_SNS, 0076000000162+I_SNS, 0076000000163+I_SNS,
0076000000164+I_SNS, 0076000000165+I_SNS, 0076000000166+I_SNS,
0076000001000+I_SNS, 0076000002000+I_SNS, 0076000003000+I_SNS,
0076000004000+I_SNS, 0076000005000+I_SNS, 0076000006000+I_SNS,
0076000007000+I_SNS, 0076000010000+I_SNS,
0076000001350+I_SNS, 0076000002350+I_SNS, 0076000003350+I_SNS,
0076000004350+I_SNS, 0076000005350+I_SNS, 0076000006350+I_SNS,
0076000007350+I_SNS, 0076000010350+I_SNS,
0076000001352+I_SNS, 0076000002352+I_SNS, 0076000003352+I_SNS,
0076000004352+I_SNS, 0076000005352+I_SNS, 0076000006352+I_SNS,
0076000007352+I_SNS, 0076000010352+I_SNS,
0002200000000+I_MXN, 0002400000000+I_MXN,
0002600000000+I_MXN, 0002700000000+I_MXN,
0003000000000+I_MXN, 0003100000000+I_MXN,
0003200000000+I_MXN, 0003300000000+I_MXN,
0004000000000+I_MXN, 0004100000000+I_NOP, 0004200000000+I_MXR,
0004300000000+I_NOP, 0004400000000+I_NOP, 0004600000000+I_MXR,
0005100000000+I_IMM, 0005400000000+I_IMM, 0005500000000+I_IMM,
0005600000000+I_IMM, 0005700000000+I_IMM,
0006000000000+I_MXN, 0006100000000+I_MXN, 0006200000000+I_MXN,
0006300000000+I_MXN, 0006400000000+I_MXN, 0006500000000+I_MXN,
0006600000000+I_MXN, 0006700000000+I_MXN, 0007400000000+I_MXR,
0010000000000+I_MXN, 0011400000000+I_MXC, 0012000000000+I_MXN,
0013100000000+I_NOP, 0014000000000+I_MXN,
0016100000000+I_MXN, 0016200000000+I_MXN,
0020000000000+I_MXN, 0020400000000+I_MXV, 0020500000000+I_MXV,
0022000000000+I_MXN, 0022100000000+I_MXN,
0022400000000+I_MXV, 0022500000000+I_MXV,
0022600000000+I_MXV, 0022700000000+I_MXV,
0024000000000+I_MXN, 0024100000000+I_MXN,
0026000000000+I_MXN, 0026100000000+I_MXN,
0030000000000+I_MXN, 0030100000000+I_MXN,
0030200000000+I_MXN, 0030300000000+I_MXN,
0030400000000+I_MXN, 0030500000000+I_MXN,
0030600000000+I_MXN, 0030700000000+I_MXN,
0032000000000+I_MXN, 0032200000000+I_MXN,
0034000000000+I_MXN, 0036100000000+I_MXN,
0040000000000+I_MXN, 0040100000000+I_MXN,
0040200000000+I_MXN, 0440000000000+I_MXN,
0042000000000+I_NOP, 0044000000000+I_MXN, 0044100000000+I_MXN,
0044200000000+I_MXN, 0044300000000+I_MXN, 0044400000000+I_MXN,
0044500000000+I_MXN, 0044600000000+I_MXN,
0050000000000+I_MXN, 0050200000000+I_MXN,
0052000000000+I_MXN, 0052200000000+I_MXN,
0053400000000+I_MXR, 0053500000000+I_MXR,
0054000000000+I_MXN, 0054100000000+I_MXN,
0054200000000+I_MXN, 0054300000000+I_MXN,
0054400000000+I_MXN, 0054500000000+I_MXN,
0054600000000+I_MXN, 0054700000000+I_MXN,
0054000000000+I_MXN, 0054100000000+I_MXN,
0054200000000+I_MXN, 0054300000000+I_MXN,
0054400000000+I_MXN, 0054500000000+I_MXN,
0054600000000+I_MXN, 0054700000000+I_MXN,
0056000000000+I_MXN, 0056400000000+I_MXN,
0060000000000+I_MXN, 0060100000000+I_MXN, 0060200000000+I_MXN,
0060400000000+I_MXN, 0062100000000+I_MXN, 0062200000000+I_MXN,
0062500000000+I_MXN, 0063000000000+I_MXN,
0063400000000+I_MXR, 0063600000000+I_MXR,
0064000000000+I_MXN, 0064000000000+I_MXN,
0064200000000+I_MXN, 0064300000000+I_MXN,
0064400000000+I_MXN, 0064500000000+I_MXN,
0064600000000+I_MXN, 0064700000000+I_MXN,
0073400000000+I_TAG, 0073700000000+I_TAG,
0075400000000+I_TAG, 0075600000000+I_TAG,
0076000000000+I_MXR, 0076100000000+I_NOP, 0076200000000+I_MXR,
0076300000000+I_MXR, 0076400000000+I_MXR, 0076500000000+I_MXR,
0076600000000+I_MXR, 0076700000000+I_MXR, 0077000000000+I_MXR,
0077100000000+I_MXR, 0077200000000+I_MXR, 0077400000000+I_MXR,
0077600000000+I_MXR,
0476000000000+I_SNS, 0476000000001+I_SNS, 0476000000002+I_SNS,
0476000000003+I_SNS, 0476000000004+I_SNS, 0476000000005+I_SNS,
0476000000006+I_SNS, 0476000000007+I_SNS, 0476000000010+I_SNS,
0476000000016+I_SNS, 0476000000141+I_SNS, 0476000000142+I_SNS,
0476000000143+I_SNS, 0476000000144+I_SNS,
0476000001000+I_SNS, 0476000002000+I_SNS, 0476000003000+I_SNS,
0476000004000+I_SNS, 0476000005000+I_SNS, 0476000006000+I_SNS,
0476000007000+I_SNS, 0476000010000+I_SNS,
0402100000000+I_MXN,
0402200000000+I_MXN, 0402400000000+I_MXN,
0402600000000+I_MXN, 0402700000000+I_MXN,
0403000000000+I_MXN, 0403100000000+I_MXN,
0403200000000+I_MXN, 0403300000000+I_MXN,
0404200000000+I_NOP, 0404600000000+I_NOP,
0405100000000+I_IMM, 0405400000000+I_IMM, 0405500000000+I_IMM,
0405600000000+I_IMM, 0405700000000+I_IMM,
0406000000000+I_MXN, 0406100000000+I_MXN, 0406200000000+I_MXN,
0406300000000+I_MXN, 0406400000000+I_MXN, 0406500000000+I_MXN,
0406600000000+I_MXN, 0406700000000+I_MXN,
0410000000000+I_MXN, 0411400000000+I_MXC, 0412000000000+I_MXN,
0413000000000+I_NOP, 0414000000000+I_MXN, 0415400000000+I_MXC,
0420000000000+I_MXN, 0424000000000+I_MXN, 0424100000000+I_MXN,
0426000000000+I_MXN, 0426100000000+I_MXN,
0430000000000+I_MXN, 0430100000000+I_MXN,
0430200000000+I_MXN, 0430300000000+I_MXN,
0430400000000+I_MXN, 0430500000000+I_MXN,
0430600000000+I_MXN, 0430700000000+I_MXN,
0432000000000+I_MXN, 0434000000000+I_MXN,
0450000000000+I_MXN, 0450100000000+I_MXN, 0452000000000+I_MXN,
0453400000000+I_MXR, 0453500000000+I_MXR,
0454000000000+I_MXN, 0454100000000+I_MXN,
0454200000000+I_MXN, 0454300000000+I_MXN,
0454400000000+I_MXN, 0454500000000+I_MXN,
0454600000000+I_MXN, 0454700000000+I_MXN,
0454000000000+I_MXN, 0454100000000+I_MXN,
0454200000000+I_MXN, 0454300000000+I_MXN,
0454400000000+I_MXN, 0454500000000+I_MXN,
0454600000000+I_MXN, 0454700000000+I_MXN,
0460000000000+I_MXN, 0460200000000+I_MXN, 0460300000000+I_MXN,
0462000000000+I_MXN, 0462500000000+I_MXN,
0463400000000+I_MXR, 0463600000000+I_MXR,
0464000000000+I_MXN, 0464000000000+I_MXN,
0464200000000+I_MXN, 0464300000000+I_MXN,
0464400000000+I_MXN, 0464500000000+I_MXN,
0464600000000+I_MXN, 0464700000000+I_MXN,
0473400000000+I_TAG, 0473700000000+I_TAG,
0475400000000+I_TAG, 0475600000000+I_TAG,
0476000000000+I_MXR, 0476300000000+I_MXR, 0476400000000+I_MXR,
0476500000000+I_MXR, 0477300000000+I_MXR, 0477200000000+I_MXR,
0477400000000+I_MXR,
0010100000000+I_MXN, 0410100000000+I_MXN,
0056200000000+I_MXN, 0456400000000+I_MXN,
0476100000041+I_SNS, 0476100000042+I_SNS,
0476100000043+I_SNS, 0476100000044+I_SNS,
01000000000000+I_IOX, 01000000200000+I_IOX, 01100000000000+I_TCH,
01200000000000+I_IOX, 01200000200000+I_IOX,
01300000000000+I_IOX, 01300000200000+I_IOX,
01400000000000+I_IOX, 01400000200000+I_IOX,
01500000000000+I_IOX, 01500000200000+I_IOX,
01600000000000+I_IOX, 01600000200000+I_IOX,
01700000000000+I_IOX, 01700000200000+I_IOX,
02000000000000+I_TCH, 02000000200000+I_IOX,
02100000000000+I_TCH, 02100000200000+I_TCH,
02200000000000+I_I9N, 02220000000000+I_TCH,
02200000200000+I_I9N, 02220000200000+I_TCH,
02240000000000+I_I9N, 02260000000000+I_TCH,
02240000200000+I_I9N,
02300000000000+I_I9S, 02300000200000+I_I9S,
02340000000000+I_I9S,
02400000000000+I_IOX,
02500000000000+I_IOX, 02500000200000+I_IOX,
02600000200000+I_I9S, 02640000000000+I_I9S, 02640000200000+I_I9S,
02700000000000+I_I9S, 02700000200000+I_IOX,
0
};
/* Symbolic decode
Inputs:
*of = output stream
addr = current PC
*val = pointer to values
*uptr = pointer to unit
sw = switches
Outputs:
return = status code
*/
t_stat fprint_sym (FILE *of, t_addr addr, t_value *val,
UNIT *uptr, int32 sw)
{
uint32 i, j, k, l, fmt, c, fld[3];
DEVICE *dptr;
t_uint64 inst;
inst = val[0];
if (uptr == NULL) uptr = &cpu_unit;
dptr = find_dev_from_unit (uptr);
if (dptr == NULL) return SCPE_IERR;
if (sw & SWMASK ('C')) { /* character? */
c = (uint32) (inst & 077);
fprintf (of, "%c", cvt_code_to_ascii (c, sw));
return SCPE_OK;
}
if (sw & SWMASK ('S')) { /* string? */
for (i = 36; i > 0; i = i - 6) {
c = (uint32) ((inst >> (i - 6)) & 077);
fprintf (of, "%c", cvt_code_to_ascii (c, sw));
}
return SCPE_OK;
}
if (!(sw & (SWMASK ('M')|SWMASK ('I')|SWMASK ('N'))) || /* M, N or I? */
(dptr->dwidth != 36)) return SCPE_ARG;
/* Instruction decode */
fld[0] = ((uint32) inst & 0777777);
fld[1] = GET_TAG (inst); /* get 3 fields */
fld[2] = GET_DEC (inst);
if (sw & SWMASK ('I')) inst |= IFAKE_7607; /* decode as 7607? */
if (sw & SWMASK ('N')) inst |= IFAKE_7909; /* decode as 7909? */
for (i = 0; opc_v[i] > 0; i++) { /* loop thru ops */
j = (int32) ((opc_v[i] >> I_V_FL) & I_M_FL); /* get class */
if ((opc_v[i] & DFAKE) == (inst & masks[j])) { /* match? */
if (inst & ind_test[j]) /* indirect? */
fprintf (of, "%s*", opcode[i]);
else fprintf (of, "%s", opcode[i]); /* opcode */
for (k = 0; k < 3; k++) fld[k] = fld[k] & fld_max[j][k];
for (k = 0; k < 3; k++) { /* loop thru fields */
fmt = fld_fmt[j][k]; /* get format */
if (fmt == INST_P_XIT) return SCPE_OK;
switch (fmt) { /* case on format */
case INST_P_PNT: /* print nz, else term */
for (l = k, c = 0; l < 3; l++) c |= fld[k];
if (c == 0) return SCPE_OK;
case INST_P_PNZ: /* print non-zero */
fputc (k? ',': ' ', of);
if (fld[k]) fprintf (of, "%-o", fld[k]);
break;
case INST_P_PRA: /* print always */
fputc (k? ',': ' ', of);
fprintf (of, "%-o", fld[k]);
break;
case INST_P_SKP: /* skip */
break;
} /* end switch */
} /* end for k */
return SCPE_OK; /* done */
} /* end if */
} /* end for i */
return SCPE_ARG;
}
/* Convert character to code to ASCII
-b BCD
-a business-chain */
uint32 cvt_code_to_ascii (uint32 c, int32 sw)
{
if (sw & SWMASK ('B')) {
if (sw & SWMASK ('A')) return bcd_to_ascii_a[c];
else return bcd_to_ascii_h[c];
}
else if (sw & SWMASK ('A')) return nine_to_ascii_a[c];
else return nine_to_ascii_h[c];
}
/* Symbolic input
Inputs:
*cptr = pointer to input string
addr = current PC
uptr = pointer to unit
*val = pointer to output values
sw = switches
Outputs:
status = error status
*/
t_stat parse_sym (char *cptr, t_addr addr, UNIT *uptr, t_value *val, int32 sw)
{
uint32 i, j, c;
t_uint64 fld[3];
t_bool ind;
t_stat r;
char gbuf[CBUFSIZE];
while (isspace (*cptr)) cptr++;
if ((sw & SWMASK ('C')) || ((*cptr == '\'') && cptr++)) { /* character? */
if (cptr[0] == 0) return SCPE_ARG; /* must have 1 char */
val[0] = (t_value) cvt_ascii_to_code (cptr[0] & 0177, sw);
return SCPE_OK;
}
if ((sw & SWMASK ('S')) || ((*cptr == '"') && cptr++)) { /* sixbit string? */
if (cptr[0] == 0) return SCPE_ARG; /* must have 1 char */
for (i = 0; i < 6; i++) {
c = cptr[0] & 0177;
if (c) val[0] = (val[0] << 6) | ((t_value) cvt_ascii_to_code (c, sw));
else {
val[0] = val[0] << (6 * (6 - i));
break;
}
}
return SCPE_OK;
}
cptr = get_glyph (cptr, gbuf, 0); /* get opcode */
j = strlen (gbuf); /* get length */
if (gbuf[j - 1] == '*') { /* indirect? */
ind = TRUE;
gbuf[j - 1] = 0;
}
else ind = FALSE;
for (i = 0; (opcode[i] != NULL) && (strcmp (opcode[i], gbuf) != 0) ; i++) ;
if (opcode[i] == NULL) return SCPE_ARG;
j = (uint32) ((opc_v[i] >> I_V_FL) & I_M_FL); /* get class */
val[0] = opc_v[i] & DMASK;
if (ind) {
if (ind_test[j]) val[0] |= ind_test[j];
else return SCPE_ARG;
}
for (i = 0; i < 3; i++) fld[i] = 0; /* clear inputs */
for (i = 0; (i < 3) && *cptr; i++) { /* parse inputs */
if (i < 2) cptr = get_glyph (cptr, gbuf, ','); /* get glyph */
else cptr = get_glyph (cptr, gbuf, 0);
if (gbuf[0]) { /* anything? */
fld[i] = get_uint (gbuf, 8, fld_max[j][i], &r);
if ((r != SCPE_OK) || (fld_max[j][i] == 0)) return SCPE_ARG;
}
}
if (*cptr != 0) return SCPE_ARG; /* junk at end? */
val[0] = val[0] | fld[0] | (fld[1] << INST_V_TAG) | (fld[2] << INST_V_DEC);
return SCPE_OK;
}
/* Convert ASCII to character code
-b BCD */
uint32 cvt_ascii_to_code (uint32 c, int32 sw)
{
if (sw & SWMASK ('B')) return ascii_to_bcd[c];
else return ascii_to_nine[c];
}