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simh-testsetgenerator/I7000/i7090_sys.c
Mark Pizzolato ae825c9afb All: Declare sim_stop_messages as an array SCPE_BASE long 
This avoids a potential invalid pointer dereference when formatting
the return value from sim_instr() if it is < SCPE_BASE but greater
than the previously defined static array size.sizeof

Update simh.doc to reflect this generic change.
2020-09-02 15:56:07 -07:00

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/* i7090_sys.c: IBM 7090 Simulator system interface.
Copyright (c) 2005-2016, Richard Cornwell
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
RICHARD CORNWELL 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.
*/
#include "i7090_defs.h"
#include "sim_card.h"
#include <ctype.h>
t_stat parse_sym(CONST char *cptr, t_addr addr, UNIT * uptr, t_value * val, 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
*/
#ifdef I704
char sim_name[] = "IBM 704";
#else
char sim_name[] = "IBM 7090";
#endif
REG *sim_PC = &cpu_reg[0];
int32 sim_emax = 1;
DEVICE *sim_devices[] = {
&cpu_dev,
&chan_dev,
#ifdef CPANEL
&cp_dev,
#endif
#ifdef NUM_DEVS_CDR
&cdr_dev,
#endif
#ifdef NUM_DEVS_CDP
&cdp_dev,
#endif
#ifdef NUM_DEVS_LPR
&lpr_dev,
#endif
#if NUM_DEVS_MT > 0
&mta_dev,
#if NUM_DEVS_MT > 1
&mtb_dev,
#if NUM_DEVS_MT > 2
&mtc_dev,
#if NUM_DEVS_MT > 3
&mtd_dev,
#if NUM_DEVS_MT > 4
&mte_dev,
#if NUM_DEVS_MT > 5
&mtf_dev,
#endif /* 5 */
#endif /* 4 */
#endif /* 3 */
#endif /* 2 */
#endif /* 1 */
#endif /* 0 */
#ifdef MT_CHANNEL_ZERO
&mtz_dev,
#endif
#if NUM_DEVS_HT > 0
&hta_dev,
#if NUM_DEVS_HT > 1
&htb_dev,
#endif
#endif
#ifdef NUM_DEVS_HD
&hsdrm_dev,
#endif
#ifdef NUM_DEVS_DR
&drm_dev,
#endif
#ifdef NUM_DEVS_DSK
&dsk_dev,
#endif
#ifdef NUM_DEVS_COM
&coml_dev,
&com_dev,
#endif
#ifdef NUM_DEVS_CHRON
&chron_dev,
#endif
NULL
};
/* Device addressing words */
#ifdef NUM_DEVS_DR
DIB drm_dib = { CH_TYP_PIO, 1, 0301, 0760, &drm_cmd, &drm_ini };
#endif
#ifdef NUM_DEVS_CDP
DIB cdp_dib = { CH_TYP_PIO|CH_TYP_76XX, 1, 0341, 0777, &cdp_cmd, &cdp_ini };
#endif
#ifdef NUM_DEVS_CDR
DIB cdr_dib = { CH_TYP_PIO|CH_TYP_76XX, 1, 0321, 0777, &cdr_cmd, NULL };
#endif
#ifdef NUM_DEVS_LPR
DIB lpr_dib = { CH_TYP_PIO|CH_TYP_76XX, 1, 0361, 0774, &lpr_cmd, &lpr_ini };
#endif
#if (NUM_DEVS_MT > 0) || defined(MT_CHANNEL_ZERO)
DIB mt_dib = { CH_TYP_PIO|CH_TYP_76XX, NUM_UNITS_MT, 0200, 0740, &mt_cmd,
&mt_ini };
#endif
#ifdef NUM_DEVS_CHRON
DIB chron_dib = { CH_TYP_PIO|CH_TYP_76XX, 1, 0200, 0740, &chron_cmd, NULL };
#endif
#ifdef NUM_DEVS_DSK
DIB dsk_dib = { CH_TYP_79XX, 0, 0, 0, &dsk_cmd, &dsk_ini };
#endif
#ifdef NUM_DEVS_HT
DIB ht_dib = { CH_TYP_79XX, NUM_UNITS_HT, 0, 0, &ht_cmd, NULL };
#endif
#ifdef NUM_DEVS_COM
DIB com_dib = { CH_TYP_79XX, 0, 0, 0, &com_cmd, NULL };
#endif
#ifdef NUM_DEVS_HD
DIB hsdrm_dib = { CH_TYP_SPEC, 1, 0330, 0777, &hsdrm_cmd, &hsdrm_ini };
#endif
/* Simulator stop codes */
const char *sim_stop_messages[SCPE_BASE] = {
"Unknown error",
"IO device not ready",
"HALT instruction",
"Breakpoint",
"Unknown Opcode",
"Nested indirects exceed limit",
"Nested XEC's exceed limit",
"I/O check error",
"Memory management trap during trap",
"7750 invalid line number",
"7750 invalid message",
"7750 No free output buffers",
"7750 No free input buffers", "Error?", "Error2", 0
};
/* Simulator debug controls */
DEBTAB dev_debug[] = {
{"CHANNEL", DEBUG_CHAN},
{"TRAP", DEBUG_TRAP},
{"CMD", DEBUG_CMD},
{"DATA", DEBUG_DATA},
{"DETAIL", DEBUG_DETAIL},
{"EXP", DEBUG_EXP},
{"SENSE", DEBUG_SNS},
{"CTSS", DEBUG_CTSS},
{"PROT", DEBUG_PROT},
{0, 0}
};
DEBTAB crd_debug[] = {
{"CHAN", DEBUG_CHAN},
{"CMD", DEBUG_CMD},
{"DATA", DEBUG_DATA},
{"DETAIL", DEBUG_DETAIL},
{"EXP", DEBUG_EXP},
{"CARD", DEBUG_CARD},
{0, 0}
};
/* Character conversion tables */
const char mem_to_ascii[64] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'b', '=', '\'', ':', '>', '%', /* 17 = box */
'+', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
'H', 'I', '?', '.', ')', '[', '<', '@', /* 37 = stop code */
'-', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
'Q', 'R', '!', '$', '*', ']', ';', '^', /* 57 = triangle */
' ', '/', 'S', 'T', 'U', 'V', 'W', 'X',
'Y', 'Z', '@', ',', '(', '~', '\\', '#'
}; /* 72 = rec mark */
/* 75 = squiggle, 77 = del */
const char ascii_to_mem[128] = {
-1, -1, -1, -1, -1, -1, -1, -1, /* 0 - 37 */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
060, 052, -1, 077, 053, 017, -1, 014, /* 40 - 77 */
074, 034, 054, 020, 073, 040, 033, 061,
000, 001, 002, 003, 004, 005, 006, 007,
010, 011, 015, 056, 036, 013, 016, 072,
037, 021, 022, 023, 024, 025, 026, 027, /* 100 - 137 */
030, 031, 041, 042, 043, 044, 045, 046,
047, 050, 051, 062, 063, 064, 065, 066,
067, 070, 071, 035, 076, 055, 057, 012,
000, 021, 022, 023, 024, 025, 026, 027, /* 140 - 177 */
030, 031, 041, 042, 043, 044, 045, 046,
047, 050, 051, 062, 063, 064, 065, 066,
067, 070, 071, -1, -1, -1, -1, -1
};
/* Load a card image file into memory. */
t_stat
sim_load(FILE * fileref, CONST char *cptr, CONST char *fnam, int flag)
{
t_uint64 wd;
t_uint64 mask;
uint8 buffer[160];
int addr = 0;
int dlen = 0;
char *p;
int i, j;
if (match_ext(fnam, "crd")) {
int firstcard = 1;
uint16 image[80];
t_uint64 lbuff[24];
while (sim_fread(buffer, 1, 160, fileref) == 160) {
/* Convert bits into image */
for (j = i = 0; j < 80; j++) {
image[j] = buffer[i++];
image[j] |= buffer[i++] << 8;
}
/* Bit flip into read buffer */
for (i = 0; i < 24; i++) {
int bit = 1 << (i / 2);
int b = 36 * (i & 1);
int col;
mask = 1;
wd = 0;
for (col = 35; col >= 0; mask <<= 1) {
if (image[col-- + b] & bit)
wd |= mask;
}
lbuff[i] = wd;
}
if (firstcard) {
addr = 0;
dlen = 3 + (int)((lbuff[0] >> 18) & AMASK);
firstcard = 0;
i = 0;
} else if (dlen == 0) {
addr = (int)(lbuff[0] & AMASK);
dlen = (int)(lbuff[0] >> 18) & AMASK;
i = 2;
} else
i = 0;
for (; i < 24 && dlen > 0; i++) {
M[addr++] = lbuff[i];
dlen--;
}
}
} else if (match_ext(fnam, "cbn")) {
int firstcard = 1;
uint16 image[80];
t_uint64 lbuff[24];
while (sim_fread(buffer, 1, 160, fileref) == 160) {
/* Convert bits into image */
for (j = i = 0; j < 80; j++) {
image[j] = buffer[i++] & 077;
image[j] |= (buffer[i++] & 077) << 6;
}
/* Bit flip into read buffer */
for (i = 0; i < 24; i++) {
int bit = 1 << (i / 2);
int b = 36 * (i & 1);
int col;
mask = 1;
wd = 0;
for (col = 35; col >= 0; mask <<= 1) {
if (image[col-- + b] & bit)
wd |= mask;
}
lbuff[i] = wd;
}
if (firstcard) {
addr = 0;
dlen = 3 + (int)((lbuff[0] >> 18) & AMASK);
firstcard = 0;
i = 0;
} else if (dlen == 0) {
addr = (int)(lbuff[0] & AMASK);
dlen = (int)(lbuff[0] >> 18) & AMASK;
i = 2;
} else
i = 0;
for (; i < 24 && dlen > 0; i++) {
M[addr++] = lbuff[i];
dlen--;
}
}
} else if (match_ext(fnam, "oct")) {
while (fgets((char *)buffer, 80, fileref) != 0) {
for(p = (char *)buffer; *p == ' ' || *p == '\t'; p++);
/* Grab address */
for(addr = 0; *p >= '0' && *p <= '7'; p++)
addr = (addr << 3) + *p - '0';
while(*p != '\n' && *p != '\0') {
for(; *p == ' ' || *p == '\t'; p++);
for(wd = 0; *p >= '0' && *p <= '7'; p++)
wd = (wd << 3) + *p - '0';
if (addr < MAXMEMSIZE)
M[addr++] = wd;
}
}
} else if (match_ext(fnam, "sym")) {
while (fgets((char *)buffer, 80, fileref) != 0) {
for(p = (char *)buffer; *p == ' ' || *p == '\t'; p++);
/* Grab address */
for(addr = 0; *p >= '0' && *p <= '7'; p++)
addr = (addr << 3) + *p - '0';
while(*p == ' ' || *p == '\t') p++;
if(sim_strncasecmp(p, "BCD", 3) == 0) {
p += 4;
parse_sym(++p, addr, &cpu_unit, &M[addr], SWMASK('C'));
} else if (sim_strncasecmp(p, "OCT", 3) == 0) {
p += 4;
for(; *p == ' ' || *p == '\t'; p++);
parse_sym(p, addr, &cpu_unit, &M[addr], 0);
} else {
parse_sym(p, addr, &cpu_unit, &M[addr], SWMASK('M'));
}
}
} else
return SCPE_ARG;
return SCPE_OK;
}
/* Symbol tables */
typedef struct _opcode
{
uint16 opbase;
const char *name;
uint8 type;
}
t_opcode;
#define TYPE_A 0 /* Basic opcode format */
#define TYPE_B 1 /* OpcodeF Y[,T] */
#define TYPE_C 2 /* Opcode Y,C */
#define TYPE_D 3 /* Opcode Y[,T] */
#define TYPE_E 4 /* Opcode */
#define TYPE_F 5 /* Opcode T */
#define TYPE_G 6 /* Opcode K */
#define TYPE_P 8 /* Positive 0760 instructs */
#define TYPE_N 9 /* Negitive 0760 instructs */
#define TYPE_X 10
/* Opcodes */
t_opcode base_ops[] = {
{OP_TXI, "TXI", TYPE_A},
{OP_TIX, "TIX", TYPE_A},
{OP_TXH, "TXH", TYPE_A},
{OP_STR, "STR", TYPE_E},
{OP_TNX, "TNX", TYPE_A},
{OP_TXL, "TXL", TYPE_A},
{0, NULL, TYPE_X}
};
/* Positive opcodes */
t_opcode pos_ops[] = {
{0760, "", TYPE_P},
{OP_HTR, "HTR", TYPE_B},
{OP_TRA, "TRA", TYPE_B},
{OP_TTR, "TTR", TYPE_B},
{OP_TRCA, "TRCA", TYPE_B},
{OP_TRCC, "TRCC", TYPE_B},
{OP_TRCE, "TRCE", TYPE_B},
{OP_TRCG, "TRCG", TYPE_B},
{OP_TEFA, "TEFA", TYPE_B},
{OP_TEFC, "TEFC", TYPE_B},
{OP_TEFE, "TEFE", TYPE_B},
{OP_TEFG, "TEFG", TYPE_B},
{OP_TLQ, "TLQ", TYPE_B},
{OP_IIA, "IIA", TYPE_E},
{OP_TIO, "TIO", TYPE_B},
{OP_OAI, "OAI", TYPE_E},
{OP_PAI, "PAI", TYPE_E},
{OP_TIF, "TIF", TYPE_B},
{OP_IIR, "IIR", TYPE_G},
{OP_RFT, "RFT", TYPE_G},
{OP_SIR, "SIR", TYPE_G},
{OP_RNT, "RNT", TYPE_G},
{OP_RIR, "RIR", TYPE_G},
{OP_TCOA, "TCOA", TYPE_B},
{OP_TCOB, "TCOB", TYPE_B},
{OP_TCOC, "TCOC", TYPE_B},
{OP_TCOD, "TCOD", TYPE_B},
{OP_TCOE, "TCOE", TYPE_B},
{OP_TCOF, "TCOF", TYPE_B},
{OP_TCOG, "TCOG", TYPE_B},
{OP_TCOH, "TCOH", TYPE_B},
{OP_TSX, "TSX", TYPE_D},
{OP_TZE, "TZE", TYPE_B},
{OP_CVR, "CVR", TYPE_C},
{OP_TPL, "TPL", TYPE_B},
{OP_XCA, "XCA", TYPE_E},
{OP_TOV, "TOV", TYPE_B},
{OP_TQP, "TQP", TYPE_B},
{OP_TQO, "TQO", TYPE_B},
{OP_MPY, "MPY", TYPE_B},
{OP_VLM, "VLM", TYPE_C},
{OP_DVH, "DVH", TYPE_B},
{OP_DVP, "DVP", TYPE_B},
{OP_VDH, "VDH", TYPE_C},
{OP_VDP, "VDP", TYPE_C},
{OP_FDH, "FDH", TYPE_B},
{OP_FDP, "FDP", TYPE_B},
{OP_FMP, "FMP", TYPE_B},
{OP_DFMP, "DFMP", TYPE_B},
{OP_FAD, "FAD", TYPE_B},
{OP_DFAD, "DFAD", TYPE_B},
{OP_FSB, "FSB", TYPE_B},
{OP_DFSB, "DFSB", TYPE_B},
{OP_FAM, "FAM", TYPE_B},
{OP_DFAM, "DFAM", TYPE_B},
{OP_FSM, "FSM", TYPE_B},
{OP_DFSM, "DFSM", TYPE_B},
{OP_ANS, "ANS", TYPE_B},
{OP_ERA, "ERA", TYPE_B},
{OP_CAS, "CAS", TYPE_B},
{OP_ACL, "ACL", TYPE_B},
{OP_HPR, "HPR", TYPE_E},
{OP_OSI, "OSI", TYPE_B},
{OP_ADD, "ADD", TYPE_B},
{OP_ADM, "ADM", TYPE_B},
{OP_SUB, "SUB", TYPE_B},
{OP_IIS, "IIS", TYPE_B},
{OP_LDI, "LDI", TYPE_B},
{OP_DLD, "DLD", TYPE_B},
{OP_ONT, "ONT", TYPE_B},
{OP_RIS, "RIS", TYPE_B},
{OP_OFT, "OFT", TYPE_B},
{OP_CLA, "CLA", TYPE_B},
{OP_CLS, "CLS", TYPE_B},
{OP_ZET, "ZET", TYPE_B},
{OP_XEC, "XEC", TYPE_B},
{OP_LXA, "LXA", TYPE_D},
{OP_LAC, "LAC", TYPE_D},
{OP_ECA, "ECA", TYPE_B},
{OP_LRI, "LRI", TYPE_B},
{OP_RSCA, "RSCA", TYPE_B},
{OP_RSCC, "RSCC", TYPE_B},
{OP_RSCE, "RSCE", TYPE_B},
{OP_RSCG, "RSCG", TYPE_B},
{OP_STCA, "STCA", TYPE_B},
{OP_STCC, "STCC", TYPE_B},
{OP_STCE, "STCE", TYPE_B},
{OP_STCG, "STCG", TYPE_B},
{OP_LDA, "LDA", TYPE_B},
{OP_LDQ, "LDQ", TYPE_B},
{OP_ENB, "ENB", TYPE_B},
{OP_STZ, "STZ", TYPE_B},
{OP_STO, "STO", TYPE_B},
{OP_SLW, "SLW", TYPE_B},
{OP_STI, "STI", TYPE_B},
{OP_STA, "STA", TYPE_B},
{OP_STD, "STD", TYPE_B},
{OP_STT, "STT", TYPE_B},
{OP_STP, "STP", TYPE_B},
{OP_SXA, "SXA", TYPE_D},
{OP_SCA, "SCA", TYPE_D},
{OP_TIA, "TIA", TYPE_B},
{OP_SCHA, "SCHA", TYPE_B},
{OP_SCHC, "SCHC", TYPE_B},
{OP_SCHE, "SCHE", TYPE_B},
{OP_SCHG, "SCHG", TYPE_B},
{OP_SCDA, "SCDA", TYPE_B},
{OP_SCDC, "SCDC", TYPE_B},
{OP_SCDE, "SCDE", TYPE_B},
{OP_SCDG, "SCDG", TYPE_B},
{OP_ELD, "ELD", TYPE_B},
{OP_EAD, "EAD", TYPE_B},
{OP_EDP, "EDP", TYPE_B},
{OP_EMP, "EMP", TYPE_B},
{OP_PAX, "PAX", TYPE_F},
{OP_PAC, "PAC", TYPE_F},
{OP_PXA, "PXA", TYPE_F},
{OP_PCA, "PCA", TYPE_F},
{OP_CPY, "CPY", TYPE_B},
{OP_NOP, "NOP", TYPE_E},
{OP_RDS, "RDS", TYPE_D},
{OP_BSR, "BSR", TYPE_D},
{OP_LLS, "LLS", TYPE_D},
{OP_LRS, "LRS", TYPE_D},
{OP_WRS, "WRS", TYPE_D},
{OP_ALS, "ALS", TYPE_D},
{OP_WEF, "WEF", TYPE_D},
{OP_ARS, "ARS", TYPE_D},
{OP_REW, "REW", TYPE_D},
{OP_AXT, "AXT", TYPE_D},
{OP_DRS, "DRS", TYPE_D},
{0, NULL, TYPE_X}
};
/* Negative opcodes */
t_opcode neg_ops[] = {
{04760, "", TYPE_N},
{OP_TRCB, "TRCB", TYPE_B},
{OP_TRCD, "TRCD", TYPE_B},
{OP_TRCF, "TRCF", TYPE_B},
{OP_TRCH, "TRCH", TYPE_B},
{OP_TEFB, "TEFB", TYPE_B},
{OP_TEFD, "TEFD", TYPE_B},
{OP_TEFF, "TEFF", TYPE_B},
{OP_TEFH, "TEFH", TYPE_B},
{OP_RIA, "RIA", TYPE_B},
{OP_PIA, "PIA", TYPE_E},
{OP_IIL, "IIL", TYPE_G},
{OP_LFT, "LFT", TYPE_G},
{OP_SIL, "SIL", TYPE_G},
{OP_LNT, "LNT", TYPE_G},
{OP_RIL, "RIL", TYPE_G},
{OP_TCNA, "TCNA", TYPE_B},
{OP_TCNB, "TCNB", TYPE_B},
{OP_TCNC, "TCNC", TYPE_B},
{OP_TCND, "TCND", TYPE_B},
{OP_TCNE, "TCNE", TYPE_B},
{OP_TCNF, "TCNF", TYPE_B},
{OP_TCNG, "TCNG", TYPE_B},
{OP_TCNH, "TCNH", TYPE_B},
{OP_ESNT, "ESNT", TYPE_B},
{OP_TNZ, "TNZ", TYPE_B},
{OP_CAQ, "CAQ", TYPE_C},
{OP_TMI, "TMI", TYPE_B},
{OP_XCL, "XCL", TYPE_E},
{OP_TNO, "TNO", TYPE_B},
{OP_CRQ, "CRQ", TYPE_C},
{OP_DUFA, "DUFA", TYPE_B},
{OP_DUAM, "DUAM", TYPE_B},
{OP_DUFS, "DUFS", TYPE_B},
{OP_DUSM, "DUSM", TYPE_B},
{OP_DUFM, "DUFM", TYPE_B},
{OP_DFDH, "DFDH", TYPE_B},
{OP_DFDP, "DFDP", TYPE_B},
{OP_MPR, "MPR", TYPE_B},
{OP_UFM, "UFM", TYPE_B},
{OP_UFA, "UFA", TYPE_B},
{OP_UFS, "UFS", TYPE_B},
{OP_UAM, "UAM", TYPE_B},
{OP_USM, "USM", TYPE_B},
{OP_ANA, "ANA", TYPE_B},
{OP_LAS, "LAS", TYPE_B},
{OP_SBM, "SBM", TYPE_B},
{OP_CAL, "CAL", TYPE_B},
{OP_ORA, "ORA", TYPE_B},
{OP_NZT, "NZT", TYPE_B},
{OP_LXD, "LXD", TYPE_D},
{OP_LDC, "LDC", TYPE_D},
{OP_RSCB, "RSCB", TYPE_B},
{OP_RSCD, "RSCD", TYPE_B},
{OP_RSCF, "RSCF", TYPE_B},
{OP_RSCH, "RSCH", TYPE_B},
{OP_STCB, "STCB", TYPE_B},
{OP_STCD, "STCD", TYPE_B},
{OP_STCF, "STCF", TYPE_B},
{OP_STCH, "STCH", TYPE_B},
{OP_STQ, "STQ", TYPE_B},
{OP_ORS, "ORS", TYPE_B},
{OP_DST, "DST", TYPE_B},
{OP_SLQ, "SLQ", TYPE_B},
{OP_STL, "STL", TYPE_B},
{OP_SCD, "SCD", TYPE_D},
{OP_SXD, "SXD", TYPE_D},
{OP_SRI, "SRI", TYPE_B},
{OP_SPI, "SPI", TYPE_B},
{OP_LPI, "LPI", TYPE_B},
{OP_PDX, "PDX", TYPE_F},
{OP_PDC, "PDC", TYPE_F},
{OP_ECQ, "ECQ", TYPE_B},
{OP_TIB, "TIB", TYPE_B},
{OP_SCHB, "SCHB", TYPE_B},
{OP_SCHD, "SCHD", TYPE_B},
{OP_SCHF, "SCHF", TYPE_B},
{OP_SCHH, "SCHH", TYPE_B},
{OP_SCDB, "SCDB", TYPE_B},
{OP_SCDD, "SCDD", TYPE_B},
{OP_SCDF, "SCDF", TYPE_B},
{OP_SCDH, "SCDH", TYPE_B},
{OP_ESB, "ESB", TYPE_B},
{OP_EUA, "EUA", TYPE_B},
{OP_EST, "EST", TYPE_B},
{OP_PXD, "PXD", TYPE_F},
{OP_PCD, "PCD", TYPE_F},
{OP_LGL, "LGL", TYPE_D},
{OP_BSF, "BSF", TYPE_D},
{OP_LGR, "LGR", TYPE_D},
{OP_CAD, "CAD", TYPE_B},
{OP_SPOP, "RPQ", TYPE_B},
{OP_RUN, "RUN", TYPE_D},
{OP_RQL, "RQL", TYPE_D},
{OP_AXC, "AXC", TYPE_D},
{OP_TRS, "TRS", TYPE_D},
{0, NULL, TYPE_X}
};
/* Positive 0760 opcodes */
t_opcode pos_760[] = {
{OP_CLM, "CLM", TYPE_E},
{OP_RDCA, "RDCA", TYPE_E},
{OP_RDCB, "RDCB", TYPE_E},
{OP_RDCC, "RDCC", TYPE_E},
{OP_RDCD, "RDCD", TYPE_E},
{OP_RDCE, "RDCE", TYPE_E},
{OP_RDCF, "RDCF", TYPE_E},
{OP_RDCG, "RDCG", TYPE_E},
{OP_RDCH, "RDCH", TYPE_E},
{OP_RICA, "RICA", TYPE_E},
{OP_RICB, "RICB", TYPE_E},
{OP_RICC, "RICC", TYPE_E},
{OP_RICD, "RICD", TYPE_E},
{OP_RICE, "RICE", TYPE_E},
{OP_RICF, "RICF", TYPE_E},
{OP_RICG, "RICG", TYPE_E},
{OP_RICH, "RICH", TYPE_E},
{OP_BTTA, "BTTA", TYPE_E},
{OP_BTTB, "BTTB", TYPE_E},
{OP_BTTC, "BTTC", TYPE_E},
{OP_BTTD, "BTTD", TYPE_E},
{OP_BTTE, "BTTE", TYPE_E},
{OP_BTTF, "BTTF", TYPE_E},
{OP_BTTG, "BTTG", TYPE_E},
{OP_BTTH, "BTTH", TYPE_E},
{OP_LBT, "LBT", TYPE_E},
{OP_CHS, "CHS", TYPE_E},
{OP_SSP, "SSP", TYPE_E},
{OP_ENK, "ENK", TYPE_E},
{OP_IOT, "IOT", TYPE_E},
{OP_COM, "COM", TYPE_E},
{OP_ETM, "ETM", TYPE_E},
{OP_RND, "RND", TYPE_E},
{OP_FRN, "FRN", TYPE_E},
{OP_DCT, "DCT", TYPE_E},
{OP_RCT, "RCT", TYPE_E},
{OP_LMTM, "LMTM", TYPE_E},
{OP_SLF, "SLF", TYPE_E},
{OP_SLN1, "SLN1", TYPE_E},
{OP_SLN2, "SLN2", TYPE_E},
{OP_SLN3, "SLN3", TYPE_E},
{OP_SLN4, "SLN4", TYPE_E},
{OP_SLN5, "SLN5", TYPE_E},
{OP_SLN6, "SLN6", TYPE_E},
{OP_SLN7, "SLN7", TYPE_E},
{OP_SLN8, "SLN8", TYPE_E},
{OP_SWT1, "SWT1", TYPE_E},
{OP_SWT2, "SWT2", TYPE_E},
{OP_SWT3, "SWT3", TYPE_E},
{OP_SWT4, "SWT4", TYPE_E},
{OP_SWT5, "SWT5", TYPE_E},
{OP_SWT6, "SWT6", TYPE_E},
{OP_PSE, "PSE", TYPE_E},
{0, NULL, TYPE_X}
};
/* Negative 0760 opcodes */
t_opcode neg_760[] = {
{OP_ETTA, "ETTA", TYPE_E},
{OP_ETTB, "ETTB", TYPE_E},
{OP_ETTC, "ETTC", TYPE_E},
{OP_ETTD, "ETTD", TYPE_E},
{OP_ETTE, "ETTE", TYPE_E},
{OP_ETTF, "ETTF", TYPE_E},
{OP_ETTG, "ETTG", TYPE_E},
{OP_ETTH, "ETTH", TYPE_E},
{OP_PBT, "PBT", TYPE_E},
{OP_EFTM, "EFTM", TYPE_E},
{OP_SSM, "SSM", TYPE_E},
{OP_LFTM, "LFTM", TYPE_E},
{OP_ESTM, "ESTM", TYPE_E},
{OP_ECTM, "ECTM", TYPE_E},
{OP_LTM, "LTM", TYPE_E},
{OP_EMTM, "EMTM", TYPE_E},
{OP_RTT, "RTT", TYPE_E},
{OP_ETT, "ETT", TYPE_E},
{OP_SLT1, "SLT1", TYPE_E},
{OP_SLT2, "SLT2", TYPE_E},
{OP_SLT3, "SLT3", TYPE_E},
{OP_SLT4, "SLT4", TYPE_E},
{OP_SLT5, "SLT5", TYPE_E},
{OP_SLT6, "SLT6", TYPE_E},
{OP_SLT7, "SLT7", TYPE_E},
{OP_SLT8, "SLT8", TYPE_E},
{OP_SWT7, "SWT7", TYPE_E},
{OP_SWT8, "SWT8", TYPE_E},
{OP_SWT9, "SWT9", TYPE_E},
{OP_SWT10, "SWT10", TYPE_E},
{OP_SWT11, "SWT11", TYPE_E},
{OP_SWT12, "SWT12", TYPE_E},
{OP_MSE, "MSE", TYPE_D},
{0, NULL, TYPE_X}
};
const char *chname[11] = {
"*", "A", "B", "C", "D", "E", "F", "G", "H"
};
void
lookup_sopcode(FILE * of, t_value val, t_opcode * tab)
{
uint16 op = (uint16)(val & 07777);
while (tab->name != NULL) {
if (tab->opbase == op) {
fputs(tab->name, of);
switch (tab->type) {
case TYPE_D:
fputc(' ', of);
fprint_val(of, val & AMASK, 8, 14, PV_RZRO);
if ((val & TMASK) != 0) {
fputc(',', of);
fputc('0' + (7 & (int)(val >> 15)), of);
}
return;
case TYPE_E:
if ((val & TMASK) != 0) {
fputc(' ', of);
fputc('0' + (7 & (int)(val >> 15)), of);
}
return;
default:
return;
}
}
tab++;
}
tab--;
fputs(tab->name, of);
fputc(' ', of);
fprint_val(of, val & AMASK, 8, 14, PV_RZRO);
if ((val & TMASK) != 0) {
fputc(',', of);
fputc('0' + (7 & (int)(val >> 15)), of);
}
}
void
lookup_opcode(FILE * of, t_value val, t_opcode * tab)
{
uint16 op = (uint16)(val >> 24) & 07777;
while (tab->name != NULL) {
if (tab->opbase == op) {
fputs(tab->name, of);
switch (tab->type) {
case TYPE_B:
if ((val & 0000060000000LL) == 0000060000000LL)
fputc('*', of);
fputc(' ', of);
fprint_val(of, val & AMASK, 8, 14, PV_RZRO);
if ((val & TMASK) != 0) {
fputc(',', of);
fputc('0' + (7 & (int)(val >> 15)), of);
}
return;
case TYPE_C:
fputc(' ', of);
fprint_val(of, val & AMASK, 8, 14, PV_RZRO);
fputc(',', of);
fprint_val(of, (val >> 17) & 0000777LL, 8, 9, PV_RZRO);
if ((val & TMASK) != 0) {
fputc(',', of);
fputc('0' + (7 & (int)(val >> 15)), of);
}
return;
case TYPE_D:
fputc(' ', of);
fprint_val(of, val & AMASK, 8, 14, PV_RZRO);
if ((val & TMASK) != 0) {
fputc(',', of);
fputc('0' + (7 & (int)(val >> 15)), of);
}
return;
case TYPE_E:
return;
case TYPE_F:
fputc(' ', of);
fprint_val(of, val & AMASK, 8, 14, PV_RZRO);
fputc(',', of);
fputc('0' + (7 & (int)(val >> 15)), of);
return;
case TYPE_G:
fputc(' ', of);
fprint_val(of, val & RMASK, 8, 18, PV_RZRO);
return;
case TYPE_P:
lookup_sopcode(of, val, pos_760);
return;
case TYPE_N:
lookup_sopcode(of, val, neg_760);
return;
default:
return;
}
}
tab++;
}
fprintf(of, " %o Unknown opcode", op);
}
/* 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)
{
t_uint64 inst = *val;
/* Print value in octal first */
fputc(' ', of);
if (inst & MSIGN)
fputc('-', of);
else
fputc(' ', of);
fprint_val(of, inst & PMASK, 8, 35, PV_RZRO);
if (sw & SWMASK('L')) {
t_uint64 v;
fputs(" L ", of);
v = (inst >> 18) & AMASK;
v = AMASK & ((AMASK ^ v) + 1);
fprint_val(of, v, 8, 15, PV_RZRO);
fputs(", ", of);
v = AMASK & ((AMASK ^ inst) + 1);
fprint_val(of, v, 8, 15, PV_RZRO);
}
if (sw & SWMASK('C')) {
int i;
fputs(" '", of);
for (i = 5; i >= 0; i--) {
int ch;
ch = (int)(inst >> (6 * i)) & 077;
fputc(mem_to_ascii[ch], of);
}
fputc('\'', of);
}
/* -m only valid on CPU */
if ((uptr != NULL) && (uptr != &cpu_unit))
return SCPE_ARG; /* CPU? */
if (sw & SWMASK('M')) {
fputs(" ", of);
switch (07 & (inst >> 33)) {
case OP_TXI:
fputs("TXI ", of);
goto type_a;
case OP_TIX:
fputs("TIX ", of);
goto type_a;
case OP_TXH:
fputs("TXH ", of);
goto type_a;
case OP_STR:
fputs("STR ", of);
break;
case OP_TNX:
fputs("TNX ", of);
goto type_a;
case OP_TXL:
fputs("TXL ", of);
goto type_a;
type_a:
fprint_val(of, inst & AMASK, 8, 14, PV_RZRO);
fputc(',', of);
fputc('0' + (7 & (int)(inst >> 15)), of);
fputc(',', of);
fprint_val(of, (inst >> 18) & AMASK, 8, 14, PV_RZRO);
break;
case 04:
lookup_opcode(of, inst, neg_ops);
break;
case 00:
lookup_opcode(of, inst, pos_ops);
break;
}
}
return SCPE_OK;
}
t_opcode *
find_opcode(char *op, t_opcode * tab)
{
while (tab->name != NULL) {
if (*tab->name != '\0' && strcmp(op, tab->name) == 0)
return tab;
tab++;
}
return NULL;
}
/* 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(CONST char *cptr, t_addr addr, UNIT * uptr, t_value * val, int32 sw)
{
int i;
t_value d, tag;
int sign;
char buffer[100];
t_stat r;
while (isspace(*cptr))
cptr++;
d = 0;
if (sw & SWMASK('M')) {
t_opcode *op;
sign = 0;
/* Grab opcode */
cptr = get_glyph(cptr, buffer, 0);
/* Check for indirection */
i = strlen(buffer);
if (i > 0 && buffer[i-1] == '*') {
buffer[i-1] = '\0';
sign = 1;
}
if ((op = find_opcode(buffer, base_ops)) != 0) {
d = (t_uint64) op->opbase << 33;
if (sign)
return STOP_UUO;
} else if ((op = find_opcode(buffer, pos_ops)) != 0 ||
(op = find_opcode(buffer, neg_ops)) != 0) {
d = (t_uint64) op->opbase << 24;
if (sign)
d |= 03LL << 22;
} else if ((op = find_opcode(buffer, pos_760)) != 0) {
d = 00760LL << 24;
d += op->opbase;
} else if ((op = find_opcode(buffer, neg_760)) != 0) {
d = 04760LL << 24;
d += op->opbase;
} else {
return STOP_UUO;
}
if (op->type == TYPE_E) {
*val = d;
return SCPE_OK;
}
/* Collect first argument if there is one */
cptr = get_glyph(cptr, buffer, ',');
tag = get_uint (buffer, 8,
(op->type == TYPE_G) ? RMASK: AMASK, &r);
if (r != SCPE_OK)
return r;
d += tag;
if (*cptr != '\0') {
tag = 0;
/* Collect second argument if there is one */
cptr = get_glyph(cptr, buffer, ',');
if (buffer[0] != '\0') {
tag = get_uint (buffer, 8, 07LL, &r);
if (r != SCPE_OK)
return r;
d += tag << 15;
}
if (*cptr != '\0') {
cptr = get_glyph(cptr, buffer, 0);
if (buffer[0] != '\0') {
tag = get_uint (buffer, 8, AMASK, &r);
if (r != SCPE_OK)
return r;
if (op->type == TYPE_C)
d += tag << 15;
else
d += tag << 18;
}
}
}
if (*cptr != '\0')
return STOP_UUO;
*val = d;
return SCPE_OK;
} else if (sw & SWMASK('C')) {
i = 0;
while (*cptr != '\0' && i < 6) {
d <<= 6;
if (ascii_to_mem[0177 & *cptr] != (const char)-1)
d |= ascii_to_mem[0177 & *cptr];
cptr++;
i++;
}
while (i < 6) {
d <<= 6;
d |= 060;
i++;
}
} else {
if (*cptr == '-') {
sign = 1;
cptr++;
} else {
sign = 0;
if (*cptr == '+')
cptr++;
}
d = get_uint(cptr, 8, WMASK, &r);
if (r != SCPE_OK)
return r;
if (sign)
d |= MSIGN;
}
*val = d;
return SCPE_OK;
}
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