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 3 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, see <http://www.gnu.org/licenses/>.
30 #include <sys/fcntl.h>
33 #include "sim-config.h"
35 #define VAL(x) strtol(x,(char **)NULL,0)
37 /* Structures and functions from readline library */
44 extern char * readline PARAMS ((char *prompt));
45 extern void using_history PARAMS ((void));
46 extern void add_history PARAMS ((char *string));
47 extern HIST_ENTRY *remove_history PARAMS ((int which));
51 /* Command history buffer length - MUST be binary */
54 extern struct disassemble_info dinfo;
55 extern struct pstate sregs;
56 extern struct estate ebase;
64 extern int sis_verbose;
65 extern char *sis_version;
66 extern struct estate ebase;
67 extern struct evcell evbuf[];
68 extern struct irqcell irqarr[];
69 extern int irqpend, ext_irl;
73 extern char uart_dev1[];
74 extern char uart_dev2[];
75 extern uint32 last_load_addr;
82 run_sim(sregs, icount, dis)
87 int irq, mexc, deb, asi;
89 sregs->starttime = time(NULL);
91 if (sregs->err_mode) icount = 0;
92 deb = dis || sregs->histlen || sregs->bptnum;
96 if (sregs->psr & 0x080)
100 mexc = memory_read(asi, sregs->pc, &sregs->inst, 2, &sregs->hold);
104 sregs->pc = sregs->npc;
105 sregs->npc = sregs->npc + 4;
108 if (ext_irl) irq = check_interrupts(sregs);
111 sregs->trap = I_ACC_EXC;
114 if ((sregs->bphit = check_bpt(sregs)) != 0) {
118 if (sregs->histlen) {
119 sregs->histbuf[sregs->histind].addr = sregs->pc;
120 sregs->histbuf[sregs->histind].time = ebase.simtime;
122 if (sregs->histind >= sregs->histlen)
126 printf(" %8u ", ebase.simtime);
127 dis_mem(sregs->pc, 1, &dinfo);
130 dispatch_instruction(sregs);
136 sregs->err_mode = execute_trap(sregs);
137 if (sregs->err_mode) {
138 error_mode(sregs->pc);
144 if (ctrl_c || (sregs->tlimit <= ebase.simtime)) {
146 if (sregs->tlimit <= ebase.simtime) sregs->tlimit = -1;
149 sregs->tottime += time(NULL) - sregs->starttime;
172 char *cmdq[HIST_LEN];
177 for (i = 0; i < 64; i++)
179 printf("\n SIS - SPARC instruction simulator %s, copyright Jiri Gaisler 1995\n", sis_version);
180 printf(" Bug-reports to jgais@wd.estec.esa.nl\n\n");
181 while (stat < argc) {
182 if (argv[stat][0] == '-') {
183 if (strcmp(argv[stat], "-v") == 0) {
185 } else if (strcmp(argv[stat], "-c") == 0) {
186 if ((stat + 1) < argc) {
188 cfile = argv[++stat];
190 } else if (strcmp(argv[stat], "-nfp") == 0)
192 else if (strcmp(argv[stat], "-ift") == 0)
194 else if (strcmp(argv[stat], "-wrp") == 0)
196 else if (strcmp(argv[stat], "-rom8") == 0)
198 else if (strcmp(argv[stat], "-uben") == 0)
200 else if (strcmp(argv[stat], "-uart1") == 0) {
201 if ((stat + 1) < argc)
202 strcpy(uart_dev1, argv[++stat]);
203 } else if (strcmp(argv[stat], "-uart2") == 0) {
204 if ((stat + 1) < argc)
205 strcpy(uart_dev2, argv[++stat]);
206 } else if (strcmp(argv[stat], "-freq") == 0) {
207 if ((stat + 1) < argc)
208 freq = VAL(argv[++stat]);
209 } else if (strcmp(argv[stat], "-sparclite") == 0) {
212 } else if (strcmp(argv[stat], "-era") == 0) {
215 } else if (strcmp(argv[stat], "-dumbio") == 0) {
218 printf("unknown option %s\n", argv[stat]);
223 last_load_addr = bfd_load(argv[stat]);
228 printf("FPU disabled\n");
231 printf("ERA ECC emulation enabled\n");
235 INIT_DISASSEMBLE_INFO(dinfo, stdout, (fprintf_ftype) fprintf);
236 dinfo.endian = BFD_ENDIAN_BIG;
238 termsave = fcntl(0, F_GETFL, 0);
250 bacmd = (char *) malloc(256);
251 strcpy(bacmd, "batch ");
252 strcat(bacmd, cfile);
253 exec_cmd(&sregs, bacmd);
257 if (cmdq[cmdi] != 0) {
259 remove_history(cmdq[cmdi]);
261 remove_history(cmdi);
266 cmdq[cmdi] = readline("sis> ");
267 if (cmdq[cmdi] && *cmdq[cmdi])
268 add_history(cmdq[cmdi]);
270 stat = exec_cmd(&sregs, cmdq[cmdi]);
279 printf("\b\bInterrupt!\n");
281 printf(" Stopped at time %d (%.3f ms)\n", ebase.simtime,
282 ((double) ebase.simtime / (double) sregs.freq) / 1000.0);
285 printf("breakpoint at 0x%08x reached\n", sregs.pc);
289 printf("IU in error mode (%d)\n", sregs.trap);
291 printf(" %8d ", ebase.simtime);
292 dis_mem(sregs.pc, 1, &dinfo);
300 cmdi = (cmdi + 1) & (HIST_LEN - 1);