2 * This file is part of SIS.
4 * SIS, SPARC instruction simulator. Copyright (C) 1995 Jiri Gaisler, European
7 * This program is free software; you can redistribute it and/or modify it under
8 * the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc., 675
19 * Mass Ave, Cambridge, MA 02139, USA.
31 #include <sys/fcntl.h>
34 #include "sim-config.h"
36 #define VAL(x) strtol(x,(char **)NULL,0)
38 /* Structures and functions from readline library */
45 extern char * readline
PARAMS ((char *prompt
));
46 extern void using_history
PARAMS ((void));
47 extern void add_history
PARAMS ((char *string
));
48 extern HIST_ENTRY
*remove_history
PARAMS ((int which
));
52 /* Command history buffer length - MUST be binary */
55 extern struct disassemble_info dinfo
;
56 extern struct pstate sregs
;
57 extern struct estate ebase
;
65 extern int sis_verbose
;
66 extern char *sis_version
;
67 extern struct estate ebase
;
68 extern struct evcell evbuf
[];
69 extern struct irqcell irqarr
[];
70 extern int irqpend
, ext_irl
;
74 extern char uart_dev1
[];
75 extern char uart_dev2
[];
76 extern uint32 last_load_addr
;
83 run_sim(sregs
, icount
, dis
)
88 int irq
, mexc
, deb
, asi
;
90 sregs
->starttime
= time(NULL
);
92 if (sregs
->err_mode
) icount
= 0;
93 deb
= dis
|| sregs
->histlen
|| sregs
->bptnum
;
97 if (sregs
->psr
& 0x080)
101 mexc
= memory_read(asi
, sregs
->pc
, &sregs
->inst
, 2, &sregs
->hold
);
105 sregs
->pc
= sregs
->npc
;
106 sregs
->npc
= sregs
->npc
+ 4;
109 if (ext_irl
) irq
= check_interrupts(sregs
);
112 sregs
->trap
= I_ACC_EXC
;
115 if ((sregs
->bphit
= check_bpt(sregs
)) != 0) {
119 if (sregs
->histlen
) {
120 sregs
->histbuf
[sregs
->histind
].addr
= sregs
->pc
;
121 sregs
->histbuf
[sregs
->histind
].time
= ebase
.simtime
;
123 if (sregs
->histind
>= sregs
->histlen
)
127 printf(" %8u ", ebase
.simtime
);
128 dis_mem(sregs
->pc
, 1, &dinfo
);
131 dispatch_instruction(sregs
);
137 sregs
->err_mode
= execute_trap(sregs
);
138 if (sregs
->err_mode
) {
139 error_mode(sregs
->pc
);
145 if (ctrl_c
|| (sregs
->tlimit
<= ebase
.simtime
)) {
147 if (sregs
->tlimit
<= ebase
.simtime
) sregs
->tlimit
= -1;
150 sregs
->tottime
+= time(NULL
) - sregs
->starttime
;
173 char *cmdq
[HIST_LEN
];
178 for (i
= 0; i
< 64; i
++)
180 printf("\n SIS - SPARC instruction simulator %s, copyright Jiri Gaisler 1995\n", sis_version
);
181 printf(" Bug-reports to jgais@wd.estec.esa.nl\n\n");
182 while (stat
< argc
) {
183 if (argv
[stat
][0] == '-') {
184 if (strcmp(argv
[stat
], "-v") == 0) {
186 } else if (strcmp(argv
[stat
], "-c") == 0) {
187 if ((stat
+ 1) < argc
) {
189 cfile
= argv
[++stat
];
191 } else if (strcmp(argv
[stat
], "-nfp") == 0)
193 else if (strcmp(argv
[stat
], "-ift") == 0)
195 else if (strcmp(argv
[stat
], "-wrp") == 0)
197 else if (strcmp(argv
[stat
], "-rom8") == 0)
199 else if (strcmp(argv
[stat
], "-uben") == 0)
201 else if (strcmp(argv
[stat
], "-uart1") == 0) {
202 if ((stat
+ 1) < argc
)
203 strcpy(uart_dev1
, argv
[++stat
]);
204 } else if (strcmp(argv
[stat
], "-uart2") == 0) {
205 if ((stat
+ 1) < argc
)
206 strcpy(uart_dev2
, argv
[++stat
]);
207 } else if (strcmp(argv
[stat
], "-freq") == 0) {
208 if ((stat
+ 1) < argc
)
209 freq
= VAL(argv
[++stat
]);
210 } else if (strcmp(argv
[stat
], "-sparclite") == 0) {
213 } else if (strcmp(argv
[stat
], "-era") == 0) {
216 } else if (strcmp(argv
[stat
], "-dumbio") == 0) {
219 printf("unknown option %s\n", argv
[stat
]);
224 last_load_addr
= bfd_load(argv
[stat
]);
229 printf("FPU disabled\n");
232 printf("ERA ECC emulation enabled\n");
236 INIT_DISASSEMBLE_INFO(dinfo
, stdout
, (fprintf_ftype
) fprintf
);
237 dinfo
.endian
= BFD_ENDIAN_BIG
;
239 termsave
= fcntl(0, F_GETFL
, 0);
251 bacmd
= (char *) malloc(256);
252 strcpy(bacmd
, "batch ");
253 strcat(bacmd
, cfile
);
254 exec_cmd(&sregs
, bacmd
);
258 if (cmdq
[cmdi
] != 0) {
260 remove_history(cmdq
[cmdi
]);
262 remove_history(cmdi
);
267 cmdq
[cmdi
] = readline("sis> ");
268 if (cmdq
[cmdi
] && *cmdq
[cmdi
])
269 add_history(cmdq
[cmdi
]);
271 stat
= exec_cmd(&sregs
, cmdq
[cmdi
]);
280 printf("\b\bInterrupt!\n");
282 printf(" Stopped at time %d (%.3f ms)\n", ebase
.simtime
,
283 ((double) ebase
.simtime
/ (double) sregs
.freq
) / 1000.0);
286 printf("breakpoint at 0x%08x reached\n", sregs
.pc
);
290 printf("IU in error mode (%d)\n", sregs
.trap
);
292 printf(" %8d ", ebase
.simtime
);
293 dis_mem(sregs
.pc
, 1, &dinfo
);
301 cmdi
= (cmdi
+ 1) & (HIST_LEN
- 1);
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