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/* vax_sys.c: VAX simulator interface
Copyright (c) 1998-2011, 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.
21-Mar-11 RMS Modified string for STOP_BOOT message
19-Nov-08 RMS Moved bad block routine to I/O library
03-Nov-05 RMS Added 780 stop codes
04-Sep-05 RMS Fixed missing assignment (found by Peter Schorn)
16-Aug-05 RMS Fixed C++ declaration and cast problems
15-Sep-04 RMS Fixed bugs in character display and parse
30-Sep-04 RMS Fixed bugs in parsing indirect displacement modes
Added compatibility mode support
04-Sep-04 RMS Added octa instruction support
02-Sep-04 RMS Fixed parse branch return status
13-Jul-04 RMS Fixed bad block routine
16-Jun-04 RMS Added DHQ11 support
21-Mar-04 RMS Added RXV21 support
06-May-03 RMS Added support for second DELQA
12-Oct-02 RMS Added multiple RQ controller support
10-Oct-02 RMS Added DELQA support
21-Sep-02 RMS Extended symbolic ex/mod to all byte devices
06-Sep-02 RMS Added TMSCP support
14-Jul-02 RMS Added infinite loop message
*/
#include "vax_defs.h"
#include <ctype.h>
#if defined (FULL_VAX)
#define ODC(x) (x)
#else
#define ODC(x) ((x) << DR_V_USPMASK)
#endif
extern UNIT cpu_unit;
extern REG cpu_reg[];
extern int32 saved_PC;
extern int32 PSL;
extern int32 sim_switches;
t_stat fprint_sym_m (FILE *of, uint32 addr, t_value *val);
int32 fprint_sym_qoimm (FILE *of, t_value *val, int32 vp, int32 lnt);
t_stat parse_char (char *cptr, t_value *val, int32 lnt);
t_stat parse_sym_m (char *cptr, uint32 addr, t_value *val);
int32 parse_brdisp (char *cptr, uint32 addr, t_value *val,
int32 vp, int32 lnt, t_stat *r);
int32 parse_spec (char *cptr, uint32 addr, t_value *val,
int32 vp, int32 disp, t_stat *r);
char *parse_rnum (char *cptr, int32 *rn);
int32 parse_sym_qoimm (int32 *lit, t_value *val, int32 vp,
int lnt, int32 minus);
extern t_stat fprint_sym_cm (FILE *of, t_addr addr, t_value *bytes, int32 sw);
extern t_stat parse_sym_cm (char *cptr, t_addr addr, t_value *bytes, 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
*/
REG *sim_PC = &cpu_reg[0];
int32 sim_emax = 60;
const char *sim_stop_messages[] = {
"Unknown error",
"HALT instruction",
"Breakpoint",
"CHMx on interrupt stack",
"Invalid SCB vector",
"Exception in interrupt or exception",
"Process PTE in P0 or P1 space",
"Interrupt at undefined IPL",
"Fatal RQDX3 error",
"Infinite loop",
"Sanity timer expired",
"Software done",
"Reboot request failed",
"Unknown error",
"Unknown abort code"
};
/* Dispatch/decoder table
The first entry contains:
- FPD legal flag (DR_F)
- number of specifiers for decode bits 2:0>
- number of specifiers for unimplemented instructions bits<6:4>
*/
const uint16 drom[NUM_INST][MAX_SPEC + 1] = {
0, 0, 0, 0, 0, 0, 0, /* HALT */
0, 0, 0, 0, 0, 0, 0, /* NOP */
0, 0, 0, 0, 0, 0, 0, /* REI */
0, 0, 0, 0, 0, 0, 0, /* BPT */
0, 0, 0, 0, 0, 0, 0, /* RET */
0, 0, 0, 0, 0, 0, 0, /* RSB */
0, 0, 0, 0, 0, 0, 0, /* LDPCTX */
0, 0, 0, 0, 0, 0, 0, /* SVPCTX */
4+DR_F, RW, AB, RW, AB, 0, 0, /* CVTPS */
4+DR_F, RW, AB, RW, AB, 0, 0, /* CVTSP */
6, RL, RL, RL, RL, RL, WL, /* INDEX */
4+DR_F, AB, RL, RW, AB, 0, 0, /* CRC */
3, RB, RW, AB, 0, 0, 0, /* PROBER */
3, RB, RW, AB, 0, 0, 0, /* PROBEW */
2, AB, AB, 0, 0, 0, 0, /* INSQUE */
2, AB, WL, 0, 0, 0, 0, /* REMQUE */
1, BB, 0, 0, 0, 0, 0, /* BSBB */
1, BB, 0, 0, 0, 0, 0, /* BRB */
1, BB, 0, 0, 0, 0, 0, /* BNEQ */
1, BB, 0, 0, 0, 0, 0, /* BEQL */
1, BB, 0, 0, 0, 0, 0, /* BGTR */
1, BB, 0, 0, 0, 0, 0, /* BLEQ */
1, AB, 0, 0, 0, 0, 0, /* JSB */
1, AB, 0, 0, 0, 0, 0, /* JMP */
1, BB, 0, 0, 0, 0, 0, /* BGEQ */
1, BB, 0, 0, 0, 0, 0, /* BLSS */
1, BB, 0, 0, 0, 0, 0, /* BGTRU */
1, BB, 0, 0, 0, 0, 0, /* BLEQU */
1, BB, 0, 0, 0, 0, 0, /* BVC */
1, BB, 0, 0, 0, 0, 0, /* BVS */
1, BB, 0, 0, 0, 0, 0, /* BCC */
1, BB, 0, 0, 0, 0, 0, /* BCS */
4+DR_F, RW, AB, RW, AB, 0, 0, /* ADDP4 */
6+DR_F, RW, AB, RW, AB, RW, AB, /* ADDP6 */
4+DR_F, RW, AB, RW, AB, 0, 0, /* SUBP4 */
6+DR_F, RW, AB, RW, AB, RW, AB, /* SUBP6 */
5+DR_F, RW, AB, AB, RW, AB, 0, /* CVTPT */
6+DR_F, RW, AB, RW, AB, RW, AB, /* MULP6 */
5+DR_F, RW, AB, AB, RW, AB, 0, /* CVTTP */
6+DR_F, RW, AB, RW, AB, RW, AB, /* DIVP6 */
3+DR_F, RW, AB, AB, 0, 0, 0, /* MOVC3 */
3+DR_F, RW, AB, AB, 0, 0, 0, /* CMPC3 */
4+DR_F, RW, AB, AB, RB, 0, 0, /* SCANC */
4+DR_F, RW, AB, AB, RB, 0, 0, /* SPANC */
5+DR_F, RW, AB, RB, RW, AB, 0, /* MOVC5 */
5+DR_F, RW, AB, RB, RW, AB, 0, /* CMPC5 */
6+DR_F, RW, AB, RB, AB, RW, AB, /* MOVTC */
6+DR_F, RW, AB, RB, AB, RW, AB, /* MOVTUC */
1, BW, 0, 0, 0, 0, 0, /* BSBW */
1, BW, 0, 0, 0, 0, 0, /* BRW */
2, RW, WL, 0, 0, 0, 0, /* CVTWL */
2, RW, WB, 0, 0, 0, 0, /* CVTWB */
3+DR_F, RW, AB, AB, 0, 0, 0, /* MOVP */
3+DR_F, RW, AB, AB, 0, 0, 0, /* CMPP3 */
3+DR_F, RW, AB, WL, 0, 0, 0, /* CVTPL */
4+DR_F, RW, AB, RW, AB, 0, 0, /* CMPP4 */
4+DR_F, RW, AB, AB, AB, 0, 0, /* EDITPC */
4+DR_F, RW, AB, RW, AB, 0, 0, /* MATCHC */
3+DR_F, RB, RW, AB, 0, 0, 0, /* LOCC */
3+DR_F, RB, RW, AB, 0, 0, 0, /* SKPC */
2, RW, WL, 0, 0, 0, 0, /* MOVZWL */
4, RW, RW, MW, BW, 0, 0, /* ACBW */
2, AW, WL, 0, 0, 0, 0, /* MOVAW */
1, AW, 0, 0, 0, 0, 0, /* PUSHAW */
2, RF, ML, 0, 0, 0, 0, /* ADDF2 */
3, RF, RF, WL, 0, 0, 0, /* ADDF3 */
2, RF, ML, 0, 0, 0, 0, /* SUBF2 */
3, RF, RF, WL, 0, 0, 0, /* SUBF3 */
2, RF, ML, 0, 0, 0, 0, /* MULF2 */
3, RF, RF, WL, 0, 0, 0, /* MULF3 */
2, RF, ML, 0, 0, 0, 0, /* DIVF2 */
3, RF, RF, WL, 0, 0, 0, /* DIVF3 */
2, RF, WB, 0, 0, 0, 0, /* CVTFB */
2, RF, WW, 0, 0, 0, 0, /* CVTFW */
2, RF, WL, 0, 0, 0, 0, /* CVTFL */
2, RF, WL, 0, 0, 0, 0, /* CVTRFL */
2, RB, WL, 0, 0, 0, 0, /* CVTBF */
2, RW, WL, 0, 0, 0, 0, /* CVTWF */
2, RL, WL, 0, 0, 0, 0, /* CVTLF */
4, RF, RF, ML, BW, 0, 0, /* ACBF */
2, RF, WL, 0, 0, 0, 0, /* MOVF */
2, RF, RF, 0, 0, 0, 0, /* CMPF */
2, RF, WL, 0, 0, 0, 0, /* MNEGF */
1, RF, 0, 0, 0, 0, 0, /* TSTF */
5, RF, RB, RF, WL, WL, 0, /* EMODF */
3, RF, RW, AB, 0, 0, 0, /* POLYF */
2, RF, WQ, 0, 0, 0, 0, /* CVTFD */
0, 0, 0, 0, 0, 0, 0, /* reserved */
2, RW, WW, 0, 0, 0, 0, /* ADAWI */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
2, AB, AQ, 0, 0, 0, 0, /* INSQHI */
2, AB, AQ, 0, 0, 0, 0, /* INSQTI */
2, AQ, WL, 0, 0, 0, 0, /* REMQHI */
2, AQ, WL, 0, 0, 0, 0, /* REMQTI */
2, RD, MQ, 0, 0, 0, 0, /* ADDD2 */
3, RD, RD, WQ, 0, 0, 0, /* ADDD3 */
2, RD, MQ, 0, 0, 0, 0, /* SUBD2 */
3, RD, RD, WQ, 0, 0, 0, /* SUBD3 */
2, RD, MQ, 0, 0, 0, 0, /* MULD2 */
3, RD, RD, WQ, 0, 0, 0, /* MULD3 */
2, RD, MQ, 0, 0, 0, 0, /* DIVD2 */
3, RD, RD, WQ, 0, 0, 0, /* DIVD3 */
2, RD, WB, 0, 0, 0, 0, /* CVTDB */
2, RD, WW, 0, 0, 0, 0, /* CVTDW */
2, RD, WL, 0, 0, 0, 0, /* CVTDL */
2, RD, WL, 0, 0, 0, 0, /* CVTRDL */
2, RB, WQ, 0, 0, 0, 0, /* CVTBD */
2, RW, WQ, 0, 0, 0, 0, /* CVTWD */
2, RL, WQ, 0, 0, 0, 0, /* CVTLD */
4, RD, RD, MQ, BW, 0, 0, /* ACBD */
2, RD, WQ, 0, 0, 0, 0, /* MOVD */
2, RD, RD, 0, 0, 0, 0, /* CMPD */
2, RD, WQ, 0, 0, 0, 0, /* MNEGD */
1, RD, 0, 0, 0, 0, 0, /* TSTD */
5, RD, RB, RD, WL, WQ, 0, /* EMODD */
3, RD, RW, AB, 0, 0, 0, /* POLYD */
2, RD, WL, 0, 0, 0, 0, /* CVTDF */
0, 0, 0, 0, 0, 0, 0, /* reserved */
3, RB, RL, WL, 0, 0, 0, /* ASHL */
3, RB, RQ, WQ, 0, 0, 0, /* ASHQ */
4, RL, RL, RL, WQ, 0, 0, /* EMUL */
4, RL, RQ, WL, WL, 0, 0, /* EDIV */
1, WQ, 0, 0, 0, 0, 0, /* CLRQ */
2, RQ, WQ, 0, 0, 0, 0, /* MOVQ */
2, AQ, WL, 0, 0, 0, 0, /* MOVAQ */
1, AQ, 0, 0, 0, 0, 0, /* PUSHAQ */
2, RB, MB, 0, 0, 0, 0, /* ADDB2 */
3, RB, RB, WB, 0, 0, 0, /* ADDB3 */
2, RB, MB, 0, 0, 0, 0, /* SUBB2 */
3, RB, RB, WB, 0, 0, 0, /* SUBB3 */
2, RB, MB, 0, 0, 0, 0, /* MULB2 */
3, RB, RB, WB, 0, 0, 0, /* MULB3 */
2, RB, MB, 0, 0, 0, 0, /* DIVB2 */
3, RB, RB, WB, 0, 0, 0, /* DIVB3 */
2, RB, MB, 0, 0, 0, 0, /* BISB2 */
3, RB, RB, WB, 0, 0, 0, /* BISB3 */
2, RB, MB, 0, 0, 0, 0, /* BICB2 */
3, RB, RB, WB, 0, 0, 0, /* BICB3 */
2, RB, MB, 0, 0, 0, 0, /* XORB2 */
3, RB, RB, WB, 0, 0, 0, /* XORB3 */
2, RB, WB, 0, 0, 0, 0, /* MNEGB */
3, RB, RB, RB, 0, 0, 0, /* CASEB */
2, RB, WB, 0, 0, 0, 0, /* MOVB */
2, RB, RB, 0, 0, 0, 0, /* CMPB */
2, RB, WB, 0, 0, 0, 0, /* MCOMB */
2, RB, RB, 0, 0, 0, 0, /* BITB */
1, WB, 0, 0, 0, 0, 0, /* CLRB */
1, RB, 0, 0, 0, 0, 0, /* TSTB */
1, MB, 0, 0, 0, 0, 0, /* INCB */
1, MB, 0, 0, 0, 0, 0, /* DECB */
2, RB, WL, 0, 0, 0, 0, /* CVTBL */
2, RB, WW, 0, 0, 0, 0, /* CVTBW */
2, RB, WL, 0, 0, 0, 0, /* MOVZBL */
2, RB, WW, 0, 0, 0, 0, /* MOVZBW */
3, RB, RL, WL, 0, 0, 0, /* ROTL */
4, RB, RB, MB, BW, 0, 0, /* ACBB */
2, AB, WL, 0, 0, 0, 0, /* MOVAB */
1, AB, 0, 0, 0, 0, 0, /* PUSHAB */
2, RW, MW, 0, 0, 0, 0, /* ADDW2 */
3, RW, RW, WW, 0, 0, 0, /* ADDW3 */
2, RW, MW, 0, 0, 0, 0, /* SUBW2 */
3, RW, RW, WW, 0, 0, 0, /* SUBW3 */
2, RW, MW, 0, 0, 0, 0, /* MULW2 */
3, RW, RW, WW, 0, 0, 0, /* MULW3 */
2, RW, MW, 0, 0, 0, 0, /* DIVW2 */
3, RW, RW, WW, 0, 0, 0, /* DIVW3 */
2, RW, MW, 0, 0, 0, 0, /* BISW2 */
3, RW, RW, WW, 0, 0, 0, /* BISW3 */
2, RW, MW, 0, 0, 0, 0, /* BICW2 */
3, RW, RW, WW, 0, 0, 0, /* BICW3 */
2, RW, MW, 0, 0, 0, 0, /* XORW2 */
3, RW, RW, WW, 0, 0, 0, /* XORW3 */
2, RW, WW, 0, 0, 0, 0, /* MNEGW */
3, RW, RW, RW, 0, 0, 0, /* CASEW */
2, RW, WW, 0, 0, 0, 0, /* MOVW */
2, RW, RW, 0, 0, 0, 0, /* CMPW */
2, RW, WW, 0, 0, 0, 0, /* MCOMW */
2, RW, RW, 0, 0, 0, 0, /* BITW */
1, WW, 0, 0, 0, 0, 0, /* CLRW */
1, RW, 0, 0, 0, 0, 0, /* TSTW */
1, MW, 0, 0, 0, 0, 0, /* INCW */
1, MW, 0, 0, 0, 0, 0, /* DECW */
1, RW, 0, 0, 0, 0, 0, /* BISPSW */
1, RW, 0, 0, 0, 0, 0, /* BICPSW */
1, RW, 0, 0, 0, 0, 0, /* POPR */
1, RW, 0, 0, 0, 0, 0, /* PUSHR */
1, RW, 0, 0, 0, 0, 0, /* CHMK */
1, RW, 0, 0, 0, 0, 0, /* CHME */
1, RW, 0, 0, 0, 0, 0, /* CHMS */
1, RW, 0, 0, 0, 0, 0, /* CHMU */
2, RL, ML, 0, 0, 0, 0, /* ADDL2 */
3, RL, RL, WL, 0, 0, 0, /* ADDL3 */
2, RL, ML, 0, 0, 0, 0, /* SUBL2 */
3, RL, RL, WL, 0, 0, 0, /* SUBL3 */
2, RL, ML, 0, 0, 0, 0, /* MULL2 */
3, RL, RL, WL, 0, 0, 0, /* MULL3 */
2, RL, ML, 0, 0, 0, 0, /* DIVL2 */
3, RL, RL, WL, 0, 0, 0, /* DIVL3 */
2, RL, ML, 0, 0, 0, 0, /* BISL2 */
3, RL, RL, WL, 0, 0, 0, /* BISL3 */
2, RL, ML, 0, 0, 0, 0, /* BICL2 */
3, RL, RL, WL, 0, 0, 0, /* BICL3 */
2, RL, ML, 0, 0, 0, 0, /* XORL2 */
3, RL, RL, WL, 0, 0, 0, /* XORL3 */
2, RL, WL, 0, 0, 0, 0, /* MNEGL */
3, RL, RL, RL, 0, 0, 0, /* CASEL */
2, RL, WL, 0, 0, 0, 0, /* MOVL */
2, RL, RL, 0, 0, 0, 0, /* CMPL */
2, RL, WL, 0, 0, 0, 0, /* MCOML */
2, RL, RL, 0, 0, 0, 0, /* BITL */
1, WL, 0, 0, 0, 0, 0, /* CLRL */
1, RL, 0, 0, 0, 0, 0, /* TSTL */
1, ML, 0, 0, 0, 0, 0, /* INCL */
1, ML, 0, 0, 0, 0, 0, /* DECL */
2, RL, ML, 0, 0, 0, 0, /* ADWC */
2, RL, ML, 0, 0, 0, 0, /* SBWC */
2, RL, RL, 0, 0, 0, 0, /* MTPR */
2, RL, WL, 0, 0, 0, 0, /* MFPR */
1, WL, 0, 0, 0, 0, 0, /* MOVPSL */
1, RL, 0, 0, 0, 0, 0, /* PUSHL */
2, AL, WL, 0, 0, 0, 0, /* MOVAL */
1, AL, 0, 0, 0, 0, 0, /* PUSHAL */
3, RL, VB, BB, 0, 0, 0, /* BBS */
3, RL, VB, BB, 0, 0, 0, /* BBC */
3, RL, VB, BB, 0, 0, 0, /* BBSS */
3, RL, VB, BB, 0, 0, 0, /* BBCS */
3, RL, VB, BB, 0, 0, 0, /* BBSC */
3, RL, VB, BB, 0, 0, 0, /* BBCC */
3, RL, VB, BB, 0, 0, 0, /* BBSSI */
3, RL, VB, BB, 0, 0, 0, /* BBCCI */
2, RL, BB, 0, 0, 0, 0, /* BLBS */
2, RL, BB, 0, 0, 0, 0, /* BLBC */
4, RL, RB, VB, WL, 0, 0, /* FFS */
4, RL, RB, VB, WL, 0, 0, /* FFC */
4, RL, RB, VB, RL, 0, 0, /* CMPV */
4, RL, RB, VB, RL, 0, 0, /* CMPZV */
4, RL, RB, VB, WL, 0, 0, /* EXTV */
4, RL, RB, VB, WL, 0, 0, /* EXTZV */
4, RL, RL, RB, VB, 0, 0, /* INSV */
4, RL, RL, ML, BW, 0, 0, /* ACBL */
3, RL, ML, BB, 0, 0, 0, /* AOBLSS */
3, RL, ML, BB, 0, 0, 0, /* AOBLEQ */
2, ML, BB, 0, 0, 0, 0, /* SOBGEQ */
2, ML, BB, 0, 0, 0, 0, /* SOBGTR */
2, RL, WB, 0, 0, 0, 0, /* CVTLB */
2, RL, WW, 0, 0, 0, 0, /* CVTLW */
6+DR_F, RB, RW, AB, RB, RW, AB, /* ASHP */
3+DR_F, RL, RW, AB, 0, 0, 0, /* CVTLP */
2, AB, AB, 0, 0, 0, 0, /* CALLG */
2, RL, AB, 0, 0, 0, 0, /* CALLS */
0, 0, 0, 0, 0, 0, 0, /* XFC */
0, 0, 0, 0, 0, 0, 0, /* 0FD */
0, 0, 0, 0, 0, 0, 0, /* 0FE */
0, 0, 0, 0, 0, 0, 0, /* 0FF */
0, 0, 0, 0, 0, 0, 0, /* 100-10F */
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, /* 110-11F */
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, /* 120-12F */
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, /* 130-13F */
0, 0, 0, 0, 0, 0, 0,
ODC(2), RD, WO, 0, 0, 0, 0, /* CVTDH */
2, RG, WL, 0, 0, 0, 0, /* CVTGF */
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,
2, RG, MQ, 0, 0, 0, 0, /* ADDG2 */
3, RG, RG, WQ, 0, 0, 0, /* ADDG3 */
2, RG, MQ, 0, 0, 0, 0, /* SUBG2 */
3, RG, RG, WQ, 0, 0, 0, /* SUBG3 */
2, RG, MQ, 0, 0, 0, 0, /* MULG2 */
3, RG, RG, WQ, 0, 0, 0, /* MULG3 */
2, RG, MQ, 0, 0, 0, 0, /* DIVG2 */
3, RG, RG, WQ, 0, 0, 0, /* DIVG3 */
2, RG, WB, 0, 0, 0, 0, /* CVTGB */
2, RG, WW, 0, 0, 0, 0, /* CVTGW */
2, RG, WL, 0, 0, 0, 0, /* CVTGL */
2, RG, WL, 0, 0, 0, 0, /* CVTRGL */
2, RB, WQ, 0, 0, 0, 0, /* CVTBG */
2, RW, WQ, 0, 0, 0, 0, /* CVTWG */
2, RL, WQ, 0, 0, 0, 0, /* CVTLG */
4, RG, RG, MQ, BW, 0, 0, /* ACBG */
2, RG, WQ, 0, 0, 0, 0, /* MOVG */
2, RG, RG, 0, 0, 0, 0, /* CMPG */
2, RG, WQ, 0, 0, 0, 0, /* MNEGG */
1, RG, 0, 0, 0, 0, 0, /* TSTG */
5, RG, RW, RG, WL, WQ, 0, /* EMODG */
3, RG, RW, AB, 0, 0, 0, /* POLYG */
ODC(2), RG, WO, 0, 0, 0, 0, /* CVTGH */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
ODC(2), RH, MO, 0, 0, 0, 0, /* ADDH2 */
ODC(3), RH, RH, WO, 0, 0, 0, /* ADDH3 */
ODC(2), RH, MO, 0, 0, 0, 0, /* SUBH2 */
ODC(3), RH, RH, WO, 0, 0, 0, /* SUBH3 */
ODC(2), RH, MO, 0, 0, 0, 0, /* MULH2 */
ODC(3), RH, RH, WO, 0, 0, 0, /* MULH3 */
ODC(2), RH, MO, 0, 0, 0, 0, /* DIVH2 */
ODC(3), RH, RH, WO, 0, 0, 0, /* DIVH3 */
ODC(2), RH, WB, 0, 0, 0, 0, /* CVTHB */
ODC(2), RH, WW, 0, 0, 0, 0, /* CVTHW */
ODC(2), RH, WL, 0, 0, 0, 0, /* CVTHL */
ODC(2), RH, WL, 0, 0, 0, 0, /* CVTRHL */
ODC(2), RB, WO, 0, 0, 0, 0, /* CVTBH */
ODC(2), RW, WO, 0, 0, 0, 0, /* CVTWH */
ODC(2), RL, WO, 0, 0, 0, 0, /* CVTLH */
ODC(4), RH, RH, MO, BW, 0, 0, /* ACBH */
ODC(2), RH, RO, 0, 0, 0, 0, /* MOVH */
ODC(2), RH, RH, 0, 0, 0, 0, /* CMPH */
ODC(2), RH, WO, 0, 0, 0, 0, /* MNEGH */
ODC(1), RH, 0, 0, 0, 0, 0, /* TSTH */
ODC(5), RH, RW, RH, WL, WO, 0, /* EMODH */
ODC(3), RH, RW, AB, 0, 0, 0, /* POLYH */
ODC(2), RH, WQ, 0, 0, 0, 0, /* CVTHG */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
0, 0, 0, 0, 0, 0, 0, /* reserved */
ODC(1), WO, 0, 0, 0, 0, 0, /* CLRO */
ODC(2), RO, RO, 0, 0, 0, 0, /* MOVO */
ODC(2), AO, WL, 0, 0, 0, 0, /* MOVAO*/
ODC(1), AO, 0, 0, 0, 0, 0, /* PUSHAO*/
0, 0, 0, 0, 0, 0, 0, /* 180-18F */
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, /* 190-19F */
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,
ODC(2), RF, WO, 0, 0, 0, 0, /* CVTFH */
2, RF, WQ, 0, 0, 0, 0, /* CVTFG */
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, /* 1A0-1AF */
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, /* 1B0-1BF */
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, /* 1C0-1CF */
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, /* 1D0-1DF */
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, /* 1E0-1EF */
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, /* 1F0-1FF */
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,
ODC(2), RH, WL, 0, 0, 0, 0, /* CVTHF */
ODC(2), RH, WQ, 0, 0, 0, 0, /* CVTHD */
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
};
/* Opcode mnemonics table */
const char *opcode[] = {
"HALT", "NOP", "REI", "BPT", "RET", "RSB", "LDPCTX", "SVPCTX",
"CVTPS", "CVTSP", "INDEX", "CRC", "PROBER", "PROBEW", "INSQUE", "REMQUE",
"BSBB", "BRB", "BNEQ", "BEQL", "BGTR", "BLEQ", "JSB", "JMP",
"BGEQ", "BLSS", "BGTRU", "BLEQU", "BVC", "BVS", "BGEQU", "BLSSU",
"ADDP4", "ADDP6", "SUBP4", "SUBP6", "CVTPT", "MULP", "CVTTP", "DIVP",
"MOVC3", "CMPC3", "SCANC", "SPANC", "MOVC5", "CMPC5", "MOVTC", "MOVTUC",
"BSBW", "BRW", "CVTWL", "CVTWB", "MOVP", "CMPP3", "CVTPL", "CMPP4",
"EDITPC", "MATCHC", "LOCC", "SKPC", "MOVZWL", "ACBW", "MOVAW", "PUSHAW",
"ADDF2", "ADDF3", "SUBF2", "SUBF3", "MULF2", "MULF3", "DIVF2", "DIVF3",
"CVTFB", "CVTFW", "CVTFL", "CVTRFL", "CVTBF", "CVTWF", "CVTLF", "ACBF",
"MOVF", "CMPF", "MNEGF", "TSTF", "EMODF", "POLYF", "CVTFD", NULL,
"ADAWI", NULL, NULL, NULL, "INSQHI", "INSQTI", "REMQHI", "REMQTI",
"ADDD2", "ADDD3", "SUBD2", "SUBD3", "MULD2", "MULD3", "DIVD2", "DIVD3",
"CVTDB", "CVTDW", "CVTDL", "CVTRDL", "CVTBD", "CVTWD", "CVTLD", "ACBD",
"MOVD", "CMPD", "MNEGD", "TSTD", "EMODD", "POLYD", "CVTDF", NULL,
"ASHL", "ASHQ", "EMUL", "EDIV", "CLRQ", "MOVQ", "MOVAQ", "PUSHAQ",
"ADDB2", "ADDB3", "SUBB2", "SUBB3", "MULB2", "MULB3", "DIVB2", "DIVB3",
"BISB2", "BISB3", "BICB2", "BICB3", "XORB2", "XORB3", "MNEGB", "CASEB",
"MOVB", "CMPB", "MCOMB", "BITB", "CLRB", "TSTB", "INCB", "DECB",
"CVTBL", "CVTBW", "MOVZBL", "MOVZBW", "ROTL", "ACBB", "MOVAB", "PUSHAB",
"ADDW2", "ADDW3", "SUBW2", "SUBW3", "MULW2", "MULW3", "DIVW2", "DIVW3",
"BISW2", "BISW3", "BICW2", "BICW3", "XORW2", "XORW3", "MNEGW", "CASEW",
"MOVW", "CMPW", "MCOMW", "BITW", "CLRW", "TSTW", "INCW", "DECW",
"BISPSW", "BICPSW", "POPR", "PUSHR", "CHMK", "CHME", "CHMS", "CHMU",
"ADDL2", "ADDL3", "SUBL2", "SUBL3", "MULL2", "MULL3", "DIVL2", "DIVL3",
"BISL2", "BISL3", "BICL2", "BICL3", "XORL2", "XORL3", "MNEGL", "CASEL",
"MOVL", "CMPL", "MCOML", "BITL", "CLRL", "TSTL", "INCL", "DECL",
"ADWC", "SBWC", "MTPR", "MFPR", "MOVPSL", "PUSHL", "MOVAL", "PUSHAL",
"BBS", "BBC", "BBSS", "BBCS", "BBSC", "BBCC", "BBSSI", "BBCCI",
"BLBS", "BLBC", "FFS", "FFC", "CMPV", "CMPZV", "EXTV", "EXTZV",
"INSV", "ACBL", "AOBLSS", "AOBLEQ", "SOBGEQ", "SOBGTR", "CVTLB", "CVTLW",
"ASHP", "CVTLP", "CALLG", "CALLS", "XFC", NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 100 - 11F */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 120 - 13F */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, "CVTDH", "CVTGF", NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"ADDG2", "ADDG3", "SUBG2", "SUBG3", "MULG2", "MULG3", "DIVG2", "DIVG3",
"CVTGB", "CVTGW", "CVTGL", "CVTRGL", "CVTBG", "CVTWG", "CVTLG", "ACBG",
"MOVG", "CMPG", "MNEGG", "TSTG", "EMODG", "POLYG", "CVTGH", NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"ADDH2", "ADDH3", "SUBH2", "SUBH3", "MULH2", "MULH3", "DIVH2", "DIVH3",
"CVTHB", "CVTHW", "CVTHL", "CVTRHL", "CVTBH", "CVTWH", "CVTLH", "ACBH",
"MOVH", "CMPH", "MNEGH", "TSTH", "EMODH", "POLYH", "CVTHG", NULL,
NULL, NULL, NULL, NULL, "CLRO", "MOVO", "MOVAO", "PUSHAO",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 180 - 19F */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"CVTFH", "CVTFG", NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 1A0 - 1BF */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 1C0 - 1DF */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 1E0 - 1FF */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, "CVTHF", "CVTHD",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
};
const char *altcod[] = {
"CLRF", "CLRD", "CLRG", "CLRH", "MOVAF", "MOVAD", "MOVAG", "MOVAH",
"PUSHAF", "PUSHAD", "PUSHAG", "PUSHAH", "BNEQU", "BEQLU", "BCC", "BCS",
NULL
};
const int32 altop[] = {
0xD4, 0x7C, 0x7C, 0x17C, 0xDE, 0x7E, 0x7E, 0x17E,
0xDF, 0x7F, 0x7F, 0x17F, 0x12, 0x13, 0x1E, 0x1F
};
const char* regname[] = {
"R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7",
"R8", "R9", "R10", "R11", "AP", "FP", "SP", "PC"
};
#define GETNUM(d,n) for (k = d = 0; k < n; k++) \
d = d | (((int32) val[vp++]) << (k * 8))
/* Symbolic decode
Inputs:
*of = output stream
addr = current PC
*val = values to decode
*uptr = pointer to unit
sw = switches
Outputs:
return = if >= 0, error code
if < 0, number of extra bytes retired
*/
t_stat fprint_sym (FILE *of, t_addr exta, t_value *val,
UNIT *uptr, int32 sw)
{
uint32 addr = (uint32) exta;
int32 c, k, num, vp, lnt, rdx;
t_stat r;
DEVICE *dptr;
if (uptr == NULL) /* anon = CPU */
uptr = &cpu_unit;
if ((sw & SIM_SW_STOP) && (PSL & PSL_CM)) /* stop in CM? */
sw = sw | SWMASK ('P'); /* force CM print */
dptr = find_dev_from_unit (uptr); /* find dev */
if (dptr == NULL)
return SCPE_IERR;
if (dptr->dwidth != 8) /* byte dev only */
return SCPE_ARG;
if (sw & SWMASK ('B')) /* get length */
lnt = 1;
else if (sw & SWMASK ('W'))
lnt = 2;
else if (sw & SWMASK ('L'))
lnt = 4;
else lnt = (uptr == &cpu_unit)? 4: 1;
if (sw & SWMASK ('D')) /* get radix */
rdx = 10;
else if (sw & SWMASK ('O'))
rdx = 8;
else if (sw & SWMASK ('H'))
rdx = 16;
else rdx = dptr->dradix;
if ((sw & SWMASK ('A')) || (sw & SWMASK ('C'))) { /* char format? */
for (vp = lnt - 1; vp >= 0; vp--) {
c = (int32) val[vp] & 0x7F;
fprintf (of, (c < 0x20)? "<%02X>": "%c", c);
}
return -(lnt - 1); /* return # chars */
}
if ((sw & (SWMASK ('P') | SWMASK ('R'))) && /* cmode or rad50? */
(uptr == &cpu_unit)) {
r = fprint_sym_cm (of, addr, val, sw); /* decode inst */
if (r <= 0)
return r;
}
if ((sw & SWMASK ('M')) && (uptr == &cpu_unit)) { /* inst format? */
r = fprint_sym_m (of, addr, val); /* decode inst */
if (r <= 0)
return r;
}
vp = 0; /* init ptr */
GETNUM (num, lnt); /* get number */
fprint_val (of, (uint32) num, rdx, lnt * 8, PV_RZRO);
return -(vp - 1);
}
/* Symbolic decode for -m
Inputs:
of = output stream
addr = current PC
*val = values to decode
Outputs:
return = if >= 0, error code
if < 0, number of extra bytes retired
*/
t_stat fprint_sym_m (FILE *of, uint32 addr, t_value *val)
{
int32 i, k, vp, inst, numspec;
int32 num, spec, rn, disp, index;
vp = 0; /* init ptr */
inst = (int32) val[vp++]; /* get opcode */
if (inst == 0xFD) /* 2 byte op? */
inst = 0x100 | (int32) val[vp++];
if (opcode[inst] == NULL) /* defined? */
return SCPE_ARG;
numspec = DR_GETNSP (drom[inst][0]); /* get # spec */
if (numspec == 0)
numspec = DR_GETUSP (drom[inst][0]);
fprintf (of, "%s", opcode[inst]); /* print name */
for (i = 0; i < numspec; i++) { /* loop thru spec */
fputc (i? ',': ' ', of); /* separator */
disp = drom[inst][i + 1]; /* get drom value */
if (disp == BB) { /* byte br disp? */
GETNUM (num, 1);
fprintf (of, "%-X", SXTB (num) + addr + vp);
}
else if (disp == BW) { /* word br disp? */
GETNUM (num, 2);
fprintf (of, "%-X", SXTW (num) + addr + vp);
}
else {
spec = (int32) val[vp++]; /* get specifier */
if ((spec & 0xF0) == IDX) { /* index? */
index = spec; /* copy, get next */
spec = (int32) val[vp++];
}
else index = 0;
rn = spec & 0xF; /* get reg # */
switch (spec & 0xF0) { /* case on mode */
case SH0: case SH1: case SH2: case SH3: /* s^# */
fprintf (of, "#%-X", spec);
break;
case GRN: /* Rn */
fprintf (of, "%-s", regname[rn]);
break;
case RGD: /* (Rn) */
fprintf (of, "(%-s)", regname[rn]);
break;
case ADC: /* -(Rn) */
fprintf (of, "-(%-s)", regname[rn]);
break;
case AIN: /* (Rn)+, #n */
if (rn != nPC)
fprintf (of, "(%-s)+", regname[rn]);
else {
if (DR_LNT (disp) == L_OCTA)
vp = fprint_sym_qoimm (of, val, vp, 4);
else if (DR_LNT (disp) == L_QUAD)
vp = fprint_sym_qoimm (of, val, vp, 2);
else {
GETNUM (num, DR_LNT (disp));
fprintf (of, "#%-X", num);
}
}
break;
case AID: /* @(Rn)+, @#n */
if (rn != nPC)
fprintf (of, "@(%-s)+", regname[rn]);
else {
GETNUM (num, 4);
fprintf (of, "@#%-X", num);
}
break;
case BDD: /* @b^d(r),@b^n */
fputc ('@', of);
case BDP: /* b^d(r), b^n */
GETNUM (num, 1);
if (rn == nPC)
fprintf (of, "%-X", addr + vp + SXTB (num));
else if (num & BSIGN) fprintf (of, "-%-X(%-s)",
-num & BMASK, regname[rn]);
else fprintf (of, "%-X(%-s)", num, regname[rn]);
break;
case WDD: /* @w^d(r),@w^n */
fputc ('@', of);
case WDP: /* w^d(r), w^n */
GETNUM (num, 2);
if (rn == nPC)
fprintf (of, "%-X", addr + vp + SXTW (num));
else if (num & WSIGN) fprintf (of, "-%-X(%-s)",
-num & WMASK, regname[rn]);
else fprintf (of, "%-X(%-s)", num, regname[rn]);
break;
case LDD: /* @l^d(r),@l^n */
fputc ('@', of);
case LDP: /* l^d(r),l^n */
GETNUM (num, 4);
if (rn == nPC)
fprintf (of, "%-X", addr + vp + num);
else if (num & LSIGN) fprintf (of, "-%-X(%-s)",
-num, regname[rn]);
else fprintf (of, "%-X(%-s)", num, regname[rn]);
break;
} /* end case */
if (index)
fprintf (of, "[%-s]", regname[index & 0xF]);
} /* end else */
} /* end for */
return -(vp - 1);
}
/* Symbolic decode, quad/octa immediates
Inputs:
*of = output stream
*val = pointer to input values
vp = current index into val
lnt = number of longwords in immediate
Outputs:
vp = updated index into val
*/
int32 fprint_sym_qoimm (FILE *of, t_value *val, int32 vp, int32 lnt)
{
int32 i, k, startp, num[4];
for (i = 0; i < lnt; i++) {
GETNUM (num[lnt - 1 - i], 4);
}
for (i = startp = 0; i < lnt; i++) {
if (startp)
fprintf (of, "%08X", num[i]);
else if (num[i] || (i == (lnt - 1))) {
fprintf (of, "#%-X", num[i]);
startp = 1;
}
}
return vp;
}
#define PUTNUM(d,n) for (k = 0; k < n; k++) val[vp++] = (d >> (k * 8)) & 0xFF
/* Symbolic input
Inputs:
*cptr = pointer to input string
addr = current PC
*uptr = pointer to unit
*val = pointer to output values
sw = switches
Outputs:
status = > 0 error code
<= 0 -number of extra words
*/
t_stat parse_sym (char *cptr, t_addr exta, UNIT *uptr, t_value *val, int32 sw)
{
uint32 addr = (uint32) exta;
int32 k, rdx, lnt, num, vp;
t_stat r;
DEVICE *dptr;
static const uint32 maxv[5] = { 0, 0xFF, 0xFFFF, 0, 0xFFFFFFFF };
if (uptr == NULL) /* anon = CPU */
uptr = &cpu_unit;
dptr = find_dev_from_unit (uptr); /* find dev */
if (dptr == NULL)
return SCPE_IERR;
if (dptr->dwidth != 8) /* byte dev only */
return SCPE_ARG;
if (sw & SWMASK ('B')) /* get length */
lnt = 1;
else if (sw & SWMASK ('W'))
lnt = 2;
else if (sw & SWMASK ('L'))
lnt = 4;
else lnt = (uptr == &cpu_unit)? 4: 1;
if (sw & SWMASK ('D')) /* get radix */
rdx = 10;
else if (sw & SWMASK ('O'))
rdx = 8;
else if (sw & SWMASK ('H'))
rdx = 16;
else rdx = dptr->dradix;
if ((sw & SWMASK ('A')) || ((*cptr == '\'') && cptr++)) /* ASCII char? */
return parse_char (cptr, val, lnt);
if ((sw & SWMASK ('C')) || ((*cptr == '"') && cptr++)) /* ASCII string? */
return parse_char (cptr, val, sim_emax);
if ((sw & (SWMASK ('P') | SWMASK ('R'))) && /* cmode or rad50? */
(uptr == &cpu_unit)) {
r = parse_sym_cm (cptr, addr, val, sw); /* try to parse */
if (r <= 0)
return r;
}
if (uptr == &cpu_unit) { /* cpu only */
r = parse_sym_m (cptr, addr, val); /* try to parse inst */
if (r <= 0)
return r;
}
num = (int32) get_uint (cptr, rdx, maxv[lnt], &r); /* get number */
if (r != SCPE_OK)
return r;
vp = 0;
PUTNUM (num, lnt); /* store */
return -(lnt - 1);
}
/* Character input for -a or -c
Inputs:
*cptr = pointer to input string
addr = current PC
*val = pointer to output values
Outputs:
status = > 0 error code
<= 0 -number of extra words
*/
t_stat parse_char (char *cptr, t_value *val, int32 lnt)
{
int32 vp;
if (*cptr == 0)
return SCPE_ARG;
vp = 0;
while ((vp < lnt) && *cptr) { /* get chars */
val[vp++] = *cptr++;
}
return -(vp - 1); /* return # chars */
}
/* Symbolic input for -m
Inputs:
*cptr = pointer to input string
addr = current PC
*val = pointer to output values
Outputs:
status = > 0 error code
<= 0 -number of extra words
*/
t_stat parse_sym_m (char *cptr, uint32 addr, t_value *val)
{
int32 i, numspec, disp, opc, vp;
t_stat r;
char gbuf[CBUFSIZE];
cptr = get_glyph (cptr, gbuf, 0); /* get opcode */
for (i = 0, opc = -1; (i < NUM_INST) && (opc < 0); i++) {
if (opcode[i] && strcmp (gbuf, opcode[i]) == 0)
opc = i;
}
if (opc < 0) { /* check alternates */
for (i = 0; altcod[i] && (opc < 0); i++) {
if (strcmp (gbuf, altcod[i]) == 0)
opc = altop[i];
}
}
if (opc < 0)
return SCPE_ARG; /* undefined? */
vp = 0;
if (opc >= 0x100) /* 2 byte? */
val[vp++] = 0xFD;
val[vp++] = opc & 0xFF; /* store opcode */
numspec = DR_GETNSP (drom[opc][0]); /* get # specifiers */
if (numspec == 0)
numspec = DR_GETUSP (drom[opc][0]);
for (i = 1; i <= numspec; i++) { /* loop thru specs */
if (i == numspec)
cptr = get_glyph (cptr, gbuf, 0);
else cptr = get_glyph (cptr, gbuf, ','); /* get specifier */
disp = drom[opc][i]; /* get drom value */
if (disp == BB)
vp = parse_brdisp (gbuf, addr, val, vp, 0, &r);
else if (disp == BW)
vp = parse_brdisp (gbuf, addr, val, vp, 1, &r);
else vp = parse_spec (gbuf, addr, val, vp, disp, &r);
if (r != SCPE_OK)
return r;
}
if (*cptr != 0)
return SCPE_ARG;
return -(vp - 1);
}
/* Parse a branch displacement
Inputs:
cptr = pointer to input buffer
addr = current address
val = pointer to output array
vp = current pointer in output array
lnt = length (0 = byte, 1 = word)
r = pointer to status
Outputs:
vp = updated output pointer
*/
int32 parse_brdisp (char *cptr, uint32 addr, t_value *val, int32 vp,
int32 lnt, t_stat *r)
{
int32 k, dest, num;
dest = (int32) get_uint (cptr, 16, 0xFFFFFFFF, r); /* get value */
num = dest - (addr + vp + lnt + 1); /* compute offset */
if ((num > (lnt? 32767: 127)) || (num < (lnt? -32768: -128)))
*r = SCPE_ARG;
else {
PUTNUM (num, lnt + 1); /* store offset */
*r = SCPE_OK;
}
return vp;
}
/* Parse a specifier
Inputs:
cptr = pointer to input buffer
addr = current address
val = pointer to output array
vp = current pointer in output array
disp = specifier dispatch
r = pointer to status
Outputs:
vp = updated output pointer
*/
#define SP_IND 0x200 /* indirect */
#define SP_V_FORCE 6
#define SP_FS 0x040 /* S^ */
#define SP_FI 0x080 /* I^ */
#define SP_FB 0x0C0 /* B^ */
#define SP_FW 0x100 /* W^ */
#define SP_FL 0x140 /* L^ */
#define SP_LIT 0x020 /* # */
#define SP_PLUS 0x010 /* plus */
#define SP_MINUS 0x008 /* minus */
#define SP_NUM 0x004 /* number */
#define SP_IDX 0x002 /* (Rn) */
#define SP_POSTP 0x001 /* trailing + */
#define M1C(c,v) if (*cptr == c) {\
cptr++; \
fl = fl | v; \
}
#define SPUTNUM(v,d) if (fl & SP_MINUS) \
v = -v; \
PUTNUM (v, d)
#define PARSE_LOSE { \
*r = SCPE_ARG; \
return vp; \
}
#define SEL_LIM(p,m,u) ((fl & SP_PLUS)? (p): ((fl & SP_MINUS)? (m): (u)))
int32 parse_spec (char *cptr, uint32 addr, t_value *val, int32 vp, int32 disp, t_stat *r)
{
int32 i, k, litsize, rn, index;
int32 num, dispsize, mode;
int32 lit[4] = { 0 };
int32 fl = 0;
char c, *tptr;
const char *force[] = { "S^", "I^", "B^", "W^", "L^", NULL };
*r = SCPE_OK; /* assume ok */
M1C ('@', SP_IND); /* look for @ */
if (tptr = parse_rnum (cptr, &rn)) { /* look for Rn */
if (*cptr == '[') { /* look for [Rx] */
cptr = parse_rnum (++cptr, &index);
if ((cptr == NULL) || (*cptr++ != ']'))
PARSE_LOSE;
val[vp++] = index | IDX;
}
else val[vp++] = rn | GRN | (fl? 1: 0); /* Rn or @Rn */
if (*tptr != 0) /* must be done */
*r = SCPE_ARG;
return vp;
}
for (i = 0; force[i]; i++) { /* look for x^ */
if (strncmp (cptr, force[i], 2) == 0) {
cptr = cptr + 2;
fl = fl | ((i + 1) << SP_V_FORCE);
break;
}
}
M1C ('#', SP_LIT); /* look for # */
M1C ('+', SP_PLUS); /* look for + */
M1C ('-', SP_MINUS); /* look for - */
for (litsize = 0;; cptr++) { /* look for mprec int */
c = *cptr;
if ((c < '0') || (c > 'F') || ((c > '9') && (c < 'A')))
break;
num = (c <= '9')? c - '0': c - 'A' + 10;
fl = fl | SP_NUM;
for (i = 3; i >= 0; i--) {
lit[i] = lit[i] << 4;
if (i > 0)
lit[i] = lit[i] | ((lit[i - 1] >> 28) & 0xF);
else lit[i] = lit[i] | num;
if (lit[i] && (i > litsize))
litsize = i;
}
}
if (*cptr == '(') { /* look for (Rn) */
cptr = parse_rnum (++cptr, &rn);
if ((cptr == NULL) || (*cptr++ != ')'))
PARSE_LOSE;
fl = fl | SP_IDX;
}
M1C ('+', SP_POSTP); /* look for + */
if (*cptr == '[') { /* look for [Rx] */
cptr = parse_rnum (++cptr, &index);
if ((cptr == NULL) || (*cptr++ != ']'))
PARSE_LOSE;
val[vp++] = index | IDX;
}
switch (fl) { /* case on state */
case SP_FS|SP_LIT|SP_NUM: /* S^#n */
case SP_FS|SP_LIT|SP_PLUS|SP_NUM: /* S^#+n */
if ((litsize > 0) || (lit[0] & ~0x3F))
PARSE_LOSE;
val[vp++] = lit[0];
break;
case SP_IDX: /* (Rn) */
val[vp++] = rn | RGD;
break;
case SP_MINUS|SP_IDX: /* -(Rn) */
val[vp++] = rn | ADC;
break;
case SP_IDX|SP_POSTP: /* (Rn)+ */
val[vp++] = rn | AIN;
break;
case SP_LIT|SP_NUM: /* #n */
case SP_LIT|SP_PLUS|SP_NUM: /* #+n */
if ((litsize == 0) && ((lit[0] & ~0x3F) == 0)) {
val[vp++] = lit[0];
break;
} /* fall thru */
case SP_LIT|SP_MINUS|SP_NUM: /* #-n */
case SP_FI|SP_LIT|SP_NUM: /* I^#n */
case SP_FI|SP_LIT|SP_PLUS|SP_NUM: /* I^#+n */
case SP_FI|SP_LIT|SP_MINUS|SP_NUM: /* I^#-n */
val[vp++] = nPC | AIN;
disp = disp & DR_LNMASK;
switch (disp) { /* case spec lnt */
case 00: /* check fit */
if ((litsize > 0) || (lit[0] < 0) ||
(lit[0] > SEL_LIM (0x7F, 0x80, 0xFF)))
PARSE_LOSE;
SPUTNUM (lit[0], 1); /* store */
break;
case 01: /* check fit */
if ((litsize > 0) || (lit[0] < 0) ||
(lit[0] > SEL_LIM (0x7FFF, 0x8000, 0xFFFF)))
PARSE_LOSE;
SPUTNUM (lit[0], 2);
break;
case 02: /* check 1 lw */
if (litsize > 0)
PARSE_LOSE;
SPUTNUM (lit[0], 4);
break;
case 03: /* check 2 lw */
if (litsize > 1)
PARSE_LOSE;
vp = parse_sym_qoimm (lit, val, vp, 2, fl & SP_MINUS);
break;
case 04:
vp = parse_sym_qoimm (lit, val, vp, 4, fl & SP_MINUS);
break;
} /* end case lnt */
break;
case SP_IND|SP_IDX|SP_POSTP: /* @(Rn)+ */
val[vp++] = rn | AID;
break;
case SP_IND|SP_LIT|SP_NUM: /* @#n */
if (litsize > 0)
PARSE_LOSE;
val[vp++] = nPC | AID;
PUTNUM (lit[0], 4);
break;
case SP_NUM|SP_IDX: /* d(rn) */
case SP_PLUS|SP_NUM|SP_IDX: /* +d(rn) */
case SP_MINUS|SP_NUM|SP_IDX: /* -d(rn) */
case SP_IND|SP_NUM|SP_IDX: /* @d(rn) */
case SP_IND|SP_PLUS|SP_NUM|SP_IDX: /* @+d(rn) */
case SP_IND|SP_MINUS|SP_NUM|SP_IDX: /* @-d(rn) */
if (litsize > 0)
PARSE_LOSE;
dispsize = 4; /* find fit for */
mode = LDP; /* displacement */
if (lit[0] >= 0) {
if (lit[0] <= SEL_LIM (0x7F, 0x80, 0xFF)) {
dispsize = 1;
mode = BDP;
}
else if (lit[0] <= SEL_LIM (0x7FFF, 0x8000, 0xFFFF)) {
dispsize = 2;
mode = WDP;
}
}
val[vp++] = mode | rn | ((fl & SP_IND)? 0x10: 0);
SPUTNUM (lit[0], dispsize);
break;
case SP_FB|SP_NUM|SP_IDX: /* B^d(rn) */
case SP_FB|SP_PLUS|SP_NUM|SP_IDX: /* B^+d(rn) */
case SP_FB|SP_MINUS|SP_NUM|SP_IDX: /* B^-d(rn) */
case SP_IND|SP_FB|SP_NUM|SP_IDX: /* @B^d(rn) */
case SP_IND|SP_FB|SP_PLUS|SP_NUM|SP_IDX: /* @B^+d(rn) */
case SP_IND|SP_FB|SP_MINUS|SP_NUM|SP_IDX: /* @B^-d(rn) */
if ((litsize > 0) || (lit[0] < 0) ||
(lit[0] > SEL_LIM (0x7F, 0x80, 0xFF)))
PARSE_LOSE;
val[vp++] = rn | BDP | ((fl & SP_IND)? 0x10: 0);
SPUTNUM (lit[0], 1);
break;
case SP_FW|SP_NUM|SP_IDX: /* W^d(rn) */
case SP_FW|SP_PLUS|SP_NUM|SP_IDX: /* W^+d(rn) */
case SP_FW|SP_MINUS|SP_NUM|SP_IDX: /* W^-d(rn) */
case SP_IND|SP_FW|SP_NUM|SP_IDX: /* @W^d(rn) */
case SP_IND|SP_FW|SP_PLUS|SP_NUM|SP_IDX: /* @W^+d(rn) */
case SP_IND|SP_FW|SP_MINUS|SP_NUM|SP_IDX: /* @W^-d(rn) */
if ((litsize > 0) || (lit[0] < 0) ||
(lit[0] > SEL_LIM (0x7FFF, 0x8000, 0xFFFF)))
PARSE_LOSE;
val[vp++] = rn | WDP | ((fl & SP_IND)? 0x10: 0);
SPUTNUM (lit[0], 2);
break;
case SP_FL|SP_NUM|SP_IDX: /* L^d(rn) */
case SP_FL|SP_PLUS|SP_NUM|SP_IDX: /* L^+d(rn) */
case SP_FL|SP_MINUS|SP_NUM|SP_IDX: /* L^-d(rn) */
case SP_IND|SP_FL|SP_NUM|SP_IDX: /* @L^d(rn) */
case SP_IND|SP_FL|SP_PLUS|SP_NUM|SP_IDX: /* @L^+d(rn) */
case SP_IND|SP_FL|SP_MINUS|SP_NUM|SP_IDX: /* @L^-d(rn) */
if ((litsize > 0) || (lit[0] < 0))
PARSE_LOSE;
val[vp++] = rn | LDP | ((fl & SP_IND)? 0x10: 0);
SPUTNUM (lit[0], 4);
break;
case SP_NUM: /* n */
case SP_IND|SP_NUM: /* @n */
if (litsize > 0)
PARSE_LOSE;
num = lit[0] - (addr + vp + 2); /* fit in byte? */
if ((num >= -128) && (num <= 127)) {
mode = BDP;
dispsize = 1;
}
else {
num = lit[0] - (addr + vp + 3); /* fit in word? */
if ((num >= -32768) && (num <= 32767)) {
mode = WDP;
dispsize = 2;
}
else {
num = lit[0] - (addr + vp + 5); /* no, use lw */
mode = LDP;
dispsize = 4;
}
}
val[vp++] = mode | nPC | ((fl & SP_IND)? 1: 0);
PUTNUM (num, dispsize);
break;
case SP_FB|SP_NUM: /* B^n */
case SP_IND|SP_FB|SP_NUM: /* @B^n */
num = lit[0] - (addr + vp + 2);
if ((litsize > 0) || (num > 127) || (num < -128))
PARSE_LOSE;
val[vp++] = nPC | BDP | ((fl & SP_IND)? 1: 0);
PUTNUM (num, 1);
break;
case SP_FW|SP_NUM: /* W^n */
case SP_IND|SP_FW|SP_NUM: /* @W^n */
num = lit[0] - (addr + vp + 3);
if ((litsize > 0) || (num > 32767) || (num < -32768))
PARSE_LOSE;
val[vp++] = nPC | WDP | ((fl & SP_IND)? 1: 0);
PUTNUM (num, 2);
break;
case SP_FL|SP_NUM: /* L^n */
case SP_IND|SP_FL|SP_NUM: /* @L^n */
num = lit[0] - (addr + vp + 5);
if (litsize > 0)
PARSE_LOSE;
val[vp++] = nPC | LDP | ((fl & SP_IND)? 1: 0);
PUTNUM (num, 4);
break;
default:
PARSE_LOSE;
} /* end case */
if (*cptr != 0) /* must be done */
*r = SCPE_ARG;
return vp;
}
char *parse_rnum (char *cptr, int32 *rn)
{
int32 i, lnt;
t_value regnum;
char *tptr;
for (i = 15; i >= 0; i--) { /* chk named reg */
lnt = strlen (regname[i]);
if (strncmp (cptr, regname[i], lnt) == 0) {
*rn = i;
return cptr + lnt;
}
}
if (*cptr++ != 'R') /* look for R */
return NULL;
regnum = strtotv (cptr, &tptr, 10); /* look for reg # */
if ((cptr == tptr) || (regnum > 15))
return NULL;
*rn = (int32) regnum;
return tptr;
}
int32 parse_sym_qoimm (int32 *lit, t_value *val, int32 vp, int lnt, int32 minus)
{
int32 i, k, prev;
for (i = prev = 0; i < lnt; i++) {
if (minus)
prev = lit[i] = ~lit[i] + (prev == 0);
PUTNUM (lit[i], 4);
}
return vp;
}