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-rw-r--r--sim/erc32/func.c1162
1 files changed, 1162 insertions, 0 deletions
diff --git a/sim/erc32/func.c b/sim/erc32/func.c
new file mode 100644
index 00000000000..b54beeb6fe1
--- /dev/null
+++ b/sim/erc32/func.c
@@ -0,0 +1,1162 @@
+/*
+ * func.c, misc simulator functions. This file is part of SIS.
+ *
+ * SIS, SPARC instruction simulator V1.8 Copyright (C) 1995 Jiri Gaisler,
+ * European Space Agency
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 675
+ * Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <signal.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include "sis.h"
+#include "end.h"
+#include <dis-asm.h>
+#include "sim-config.h"
+
+
+#define VAL(x) strtoul(x,(char **)NULL,0)
+
+extern int current_target_byte_order;
+struct disassemble_info dinfo;
+struct pstate sregs;
+extern struct estate ebase;
+int ctrl_c = 0;
+int sis_verbose = 0;
+char *sis_version = "2.7.5";
+int nfp = 0;
+int ift = 0;
+int wrp = 0;
+int rom8 = 0;
+int uben = 0;
+int termsave;
+int sparclite = 0; /* emulating SPARClite instructions? */
+int sparclite_board = 0; /* emulating SPARClite board RAM? */
+char uart_dev1[128] = "";
+char uart_dev2[128] = "";
+extern int ext_irl;
+uint32 last_load_addr = 0;
+
+#ifdef ERRINJ
+uint32 errcnt = 0;
+uint32 errper = 0;
+uint32 errtt = 0;
+uint32 errftt = 0;
+uint32 errmec = 0;
+#endif
+
+/* Forward declarations */
+
+static int batch PARAMS ((struct pstate *sregs, char *fname));
+static void set_rega PARAMS ((struct pstate *sregs, char *reg, uint32 rval));
+static void disp_reg PARAMS ((struct pstate *sregs, char *reg));
+static uint32 limcalc PARAMS ((float32 freq));
+static void int_handler PARAMS ((int32 sig));
+static void init_event PARAMS ((void));
+static int disp_fpu PARAMS ((struct pstate *sregs));
+static void disp_regs PARAMS ((struct pstate *sregs, int cwp));
+static void disp_ctrl PARAMS ((struct pstate *sregs));
+static void disp_mem PARAMS ((uint32 addr, uint32 len));
+
+static int
+batch(sregs, fname)
+ struct pstate *sregs;
+ char *fname;
+{
+ FILE *fp;
+ char lbuf[1024];
+
+ if ((fp = fopen(fname, "r")) == NULL) {
+ fprintf(stderr, "couldn't open batch file %s\n", fname);
+ return (0);
+ }
+ while (!feof(fp)) {
+ lbuf[0] = 0;
+ fgets(lbuf, 1023, fp);
+ if ((strlen(lbuf) > 0) && (lbuf[strlen(lbuf) - 1] == '\n'))
+ lbuf[strlen(lbuf) - 1] = 0;
+ printf("sis> %s\n", lbuf);
+ exec_cmd(sregs, lbuf);
+ }
+ fclose(fp);
+ return (1);
+}
+
+void
+set_regi(sregs, reg, rval)
+ struct pstate *sregs;
+ int32 reg;
+ uint32 rval;
+{
+ uint32 cwp;
+
+ cwp = ((sregs->psr & 0x7) << 4);
+ if ((reg > 0) && (reg < 8)) {
+ sregs->g[reg] = rval;
+ } else if ((reg >= 8) && (reg < 32)) {
+ sregs->r[(cwp + reg) & 0x7f] = rval;
+ } else if ((reg >= 32) && (reg < 64)) {
+ sregs->fsi[reg - 32] = rval;
+ } else {
+ switch (reg) {
+ case 64:
+ sregs->y = rval;
+ break;
+ case 65:
+ sregs->psr = rval;
+ break;
+ case 66:
+ sregs->wim = rval;
+ break;
+ case 67:
+ sregs->tbr = rval;
+ break;
+ case 68:
+ sregs->pc = rval;
+ break;
+ case 69:
+ sregs->npc = rval;
+ break;
+ case 70:
+ sregs->fsr = rval;
+ set_fsr(rval);
+ break;
+ default:break;
+ }
+ }
+}
+
+void
+get_regi(struct pstate * sregs, int32 reg, char *buf)
+{
+ uint32 cwp;
+ uint32 rval = 0;
+
+ cwp = ((sregs->psr & 0x7) << 4);
+ if ((reg >= 0) && (reg < 8)) {
+ rval = sregs->g[reg];
+ } else if ((reg >= 8) && (reg < 32)) {
+ rval = sregs->r[(cwp + reg) & 0x7f];
+ } else if ((reg >= 32) && (reg < 64)) {
+ rval = sregs->fsi[reg - 32];
+ } else {
+ switch (reg) {
+ case 64:
+ rval = sregs->y;
+ break;
+ case 65:
+ rval = sregs->psr;
+ break;
+ case 66:
+ rval = sregs->wim;
+ break;
+ case 67:
+ rval = sregs->tbr;
+ break;
+ case 68:
+ rval = sregs->pc;
+ break;
+ case 69:
+ rval = sregs->npc;
+ break;
+ case 70:
+ rval = sregs->fsr;
+ break;
+ default:break;
+ }
+ }
+ if (current_target_byte_order == BIG_ENDIAN) {
+ buf[0] = (rval >> 24) & 0x0ff;
+ buf[1] = (rval >> 16) & 0x0ff;
+ buf[2] = (rval >> 8) & 0x0ff;
+ buf[3] = rval & 0x0ff;
+ }
+ else {
+ buf[3] = (rval >> 24) & 0x0ff;
+ buf[2] = (rval >> 16) & 0x0ff;
+ buf[1] = (rval >> 8) & 0x0ff;
+ buf[0] = rval & 0x0ff;
+ }
+}
+
+
+static void
+set_rega(sregs, reg, rval)
+ struct pstate *sregs;
+ char *reg;
+ uint32 rval;
+{
+ uint32 cwp;
+ int32 err = 0;
+
+ cwp = ((sregs->psr & 0x7) << 4);
+ if (strcmp(reg, "psr") == 0)
+ sregs->psr = (rval = (rval & 0x00f03fff));
+ else if (strcmp(reg, "tbr") == 0)
+ sregs->tbr = (rval = (rval & 0xfffffff0));
+ else if (strcmp(reg, "wim") == 0)
+ sregs->wim = (rval = (rval & 0x0ff));
+ else if (strcmp(reg, "y") == 0)
+ sregs->y = rval;
+ else if (strcmp(reg, "pc") == 0)
+ sregs->pc = rval;
+ else if (strcmp(reg, "npc") == 0)
+ sregs->npc = rval;
+ else if (strcmp(reg, "fsr") == 0) {
+ sregs->fsr = rval;
+ set_fsr(rval);
+ } else if (strcmp(reg, "g0") == 0)
+ err = 2;
+ else if (strcmp(reg, "g1") == 0)
+ sregs->g[1] = rval;
+ else if (strcmp(reg, "g2") == 0)
+ sregs->g[2] = rval;
+ else if (strcmp(reg, "g3") == 0)
+ sregs->g[3] = rval;
+ else if (strcmp(reg, "g4") == 0)
+ sregs->g[4] = rval;
+ else if (strcmp(reg, "g5") == 0)
+ sregs->g[5] = rval;
+ else if (strcmp(reg, "g6") == 0)
+ sregs->g[6] = rval;
+ else if (strcmp(reg, "g7") == 0)
+ sregs->g[7] = rval;
+ else if (strcmp(reg, "o0") == 0)
+ sregs->r[(cwp + 8) & 0x7f] = rval;
+ else if (strcmp(reg, "o1") == 0)
+ sregs->r[(cwp + 9) & 0x7f] = rval;
+ else if (strcmp(reg, "o2") == 0)
+ sregs->r[(cwp + 10) & 0x7f] = rval;
+ else if (strcmp(reg, "o3") == 0)
+ sregs->r[(cwp + 11) & 0x7f] = rval;
+ else if (strcmp(reg, "o4") == 0)
+ sregs->r[(cwp + 12) & 0x7f] = rval;
+ else if (strcmp(reg, "o5") == 0)
+ sregs->r[(cwp + 13) & 0x7f] = rval;
+ else if (strcmp(reg, "o6") == 0)
+ sregs->r[(cwp + 14) & 0x7f] = rval;
+ else if (strcmp(reg, "o7") == 0)
+ sregs->r[(cwp + 15) & 0x7f] = rval;
+ else if (strcmp(reg, "l0") == 0)
+ sregs->r[(cwp + 16) & 0x7f] = rval;
+ else if (strcmp(reg, "l1") == 0)
+ sregs->r[(cwp + 17) & 0x7f] = rval;
+ else if (strcmp(reg, "l2") == 0)
+ sregs->r[(cwp + 18) & 0x7f] = rval;
+ else if (strcmp(reg, "l3") == 0)
+ sregs->r[(cwp + 19) & 0x7f] = rval;
+ else if (strcmp(reg, "l4") == 0)
+ sregs->r[(cwp + 20) & 0x7f] = rval;
+ else if (strcmp(reg, "l5") == 0)
+ sregs->r[(cwp + 21) & 0x7f] = rval;
+ else if (strcmp(reg, "l6") == 0)
+ sregs->r[(cwp + 22) & 0x7f] = rval;
+ else if (strcmp(reg, "l7") == 0)
+ sregs->r[(cwp + 23) & 0x7f] = rval;
+ else if (strcmp(reg, "i0") == 0)
+ sregs->r[(cwp + 24) & 0x7f] = rval;
+ else if (strcmp(reg, "i1") == 0)
+ sregs->r[(cwp + 25) & 0x7f] = rval;
+ else if (strcmp(reg, "i2") == 0)
+ sregs->r[(cwp + 26) & 0x7f] = rval;
+ else if (strcmp(reg, "i3") == 0)
+ sregs->r[(cwp + 27) & 0x7f] = rval;
+ else if (strcmp(reg, "i4") == 0)
+ sregs->r[(cwp + 28) & 0x7f] = rval;
+ else if (strcmp(reg, "i5") == 0)
+ sregs->r[(cwp + 29) & 0x7f] = rval;
+ else if (strcmp(reg, "i6") == 0)
+ sregs->r[(cwp + 30) & 0x7f] = rval;
+ else if (strcmp(reg, "i7") == 0)
+ sregs->r[(cwp + 31) & 0x7f] = rval;
+ else
+ err = 1;
+ switch (err) {
+ case 0:
+ printf("%s = %d (0x%08x)\n", reg, rval, rval);
+ break;
+ case 1:
+ printf("no such regiser: %s\n", reg);
+ break;
+ case 2:
+ printf("cannot set g0\n");
+ break;
+ default:
+ break;
+ }
+
+}
+
+static void
+disp_reg(sregs, reg)
+ struct pstate *sregs;
+ char *reg;
+{
+ if (strncmp(reg, "w",1) == 0)
+ disp_regs(sregs, VAL(&reg[1]));
+}
+
+#ifdef ERRINJ
+
+void
+errinj()
+{
+ int err;
+
+ switch (err = (random() % 12)) {
+ case 0: errtt = 0x61; break;
+ case 1: errtt = 0x62; break;
+ case 2: errtt = 0x63; break;
+ case 3: errtt = 0x64; break;
+ case 4: errtt = 0x65; break;
+ case 5:
+ case 6:
+ case 7: errftt = err;
+ break;
+ case 8: errmec = 1; break;
+ case 9: errmec = 2; break;
+ case 10: errmec = 5; break;
+ case 11: errmec = 6; break;
+ }
+ errcnt++;
+ if (errper) event(errinj, 0, (random()%errper));
+}
+
+void
+errinjstart()
+{
+ if (errper) event(errinj, 0, (random()%errper));
+}
+
+#endif
+
+static uint32
+limcalc (freq)
+ float32 freq;
+{
+ uint32 unit, lim;
+ double flim;
+ char *cmd1, *cmd2;
+
+ unit = 1;
+ lim = -1;
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ lim = VAL(cmd1);
+ if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) {
+ if (strcmp(cmd2,"us")==0) unit = 1;
+ if (strcmp(cmd2,"ms")==0) unit = 1000;
+ if (strcmp(cmd2,"s")==0) unit = 1000000;
+ }
+ flim = (double) lim * (double) unit * (double) freq +
+ (double) ebase.simtime;
+ if ((flim > ebase.simtime) && (flim < 4294967296.0)) {
+ lim = (uint32) flim;
+ } else {
+ printf("error in expression\n");
+ lim = -1;
+ }
+ }
+ return (lim);
+}
+
+int
+exec_cmd(sregs, cmd)
+ char *cmd;
+ struct pstate *sregs;
+{
+ char *cmd1, *cmd2;
+ int32 stat;
+ uint32 len, i, clen, j;
+ static uint32 daddr = 0;
+ char *cmdsave;
+
+ stat = OK;
+ cmdsave = strdup(cmd);
+ if ((cmd1 = strtok(cmd, " \t")) != NULL) {
+ clen = strlen(cmd1);
+ if (strncmp(cmd1, "bp", clen) == 0) {
+ for (i = 0; i < sregs->bptnum; i++) {
+ printf(" %d : 0x%08x\n", i + 1, sregs->bpts[i]);
+ }
+ } else if (strncmp(cmd1, "+bp", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ sregs->bpts[sregs->bptnum] = VAL(cmd1) & ~0x3;
+ printf("added breakpoint %d at 0x%08x\n",
+ sregs->bptnum + 1, sregs->bpts[sregs->bptnum]);
+ sregs->bptnum += 1;
+ }
+ } else if (strncmp(cmd1, "-bp", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ i = VAL(cmd1) - 1;
+ if ((i >= 0) && (i < sregs->bptnum)) {
+ printf("deleted breakpoint %d at 0x%08x\n", i + 1,
+ sregs->bpts[i]);
+ for (; i < sregs->bptnum - 1; i++) {
+ sregs->bpts[i] = sregs->bpts[i + 1];
+ }
+ sregs->bptnum -= 1;
+ }
+ }
+ } else if (strncmp(cmd1, "batch", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
+ printf("no file specified\n");
+ } else {
+ batch(sregs, cmd1);
+ }
+ } else if (strncmp(cmd1, "cont", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
+ stat = run_sim(sregs, -1, 0);
+ } else {
+ stat = run_sim(sregs, VAL(cmd1), 0);
+ }
+ daddr = sregs->pc;
+ sim_halt();
+ } else if (strncmp(cmd1, "debug", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ sis_verbose = VAL(cmd1);
+ }
+ printf("Debug level = %d\n",sis_verbose);
+ } else if (strncmp(cmd1, "dis", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ daddr = VAL(cmd1);
+ }
+ if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) {
+ len = VAL(cmd2);
+ } else
+ len = 16;
+ printf("\n");
+ dis_mem(daddr, len, &dinfo);
+ printf("\n");
+ daddr += len * 4;
+ } else if (strncmp(cmd1, "echo", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ printf("%s\n", (&cmdsave[clen+1]));
+ }
+#ifdef ERRINJ
+ } else if (strncmp(cmd1, "error", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ errper = VAL(cmd1);
+ if (errper) {
+ event(errinj, 0, (len = (random()%errper)));
+ printf("Error injection started with period %d\n",len);
+ }
+ } else printf("Injected errors: %d\n",errcnt);
+#endif
+ } else if (strncmp(cmd1, "float", clen) == 0) {
+ stat = disp_fpu(sregs);
+ } else if (strncmp(cmd1, "go", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
+ len = last_load_addr;
+ } else {
+ len = VAL(cmd1);
+ }
+ sregs->pc = len & ~3;
+ sregs->npc = sregs->pc + 4;
+ printf("resuming at 0x%08x\n",sregs->pc);
+ if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) {
+ stat = run_sim(sregs, VAL(cmd2), 0);
+ } else {
+ stat = run_sim(sregs, -1, 0);
+ }
+ daddr = sregs->pc;
+ sim_halt();
+ } else if (strncmp(cmd1, "help", clen) == 0) {
+ gen_help();
+ } else if (strncmp(cmd1, "history", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ sregs->histlen = VAL(cmd1);
+ if (sregs->histbuf != NULL)
+ free(sregs->histbuf);
+ sregs->histbuf = (struct histype *) calloc(sregs->histlen, sizeof(struct histype));
+ printf("trace history length = %d\n\r", sregs->histlen);
+ sregs->histind = 0;
+
+ } else {
+ j = sregs->histind;
+ for (i = 0; i < sregs->histlen; i++) {
+ if (j >= sregs->histlen)
+ j = 0;
+ printf(" %8d ", sregs->histbuf[j].time);
+ dis_mem(sregs->histbuf[j].addr, 1, &dinfo);
+ j++;
+ }
+ }
+
+ } else if (strncmp(cmd1, "load", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ last_load_addr = bfd_load(cmd1);
+ while ((cmd1 = strtok(NULL, " \t\n\r")) != NULL)
+ last_load_addr = bfd_load(cmd1);
+ } else {
+ printf("load: no file specified\n");
+ }
+ } else if (strncmp(cmd1, "mem", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL)
+ daddr = VAL(cmd1);
+ if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL)
+ len = VAL(cmd2);
+ else
+ len = 64;
+ disp_mem(daddr, len);
+ daddr += len;
+ } else if (strncmp(cmd1, "perf", clen) == 0) {
+ cmd1 = strtok(NULL, " \t\n\r");
+ if ((cmd1 != NULL) &&
+ (strncmp(cmd1, "reset", strlen(cmd1)) == 0)) {
+ reset_stat(sregs);
+ } else
+ show_stat(sregs);
+ } else if (strncmp(cmd1, "quit", clen) == 0) {
+ exit(0);
+ } else if (strncmp(cmd1, "reg", clen) == 0) {
+ cmd1 = strtok(NULL, " \t\n\r");
+ cmd2 = strtok(NULL, " \t\n\r");
+ if (cmd2 != NULL)
+ set_rega(sregs, cmd1, VAL(cmd2));
+ else if (cmd1 != NULL)
+ disp_reg(sregs, cmd1);
+ else {
+ disp_regs(sregs,sregs->psr);
+ disp_ctrl(sregs);
+ }
+ } else if (strncmp(cmd1, "reset", clen) == 0) {
+ ebase.simtime = 0;
+ reset_all();
+ reset_stat(sregs);
+ } else if (strncmp(cmd1, "run", clen) == 0) {
+ ebase.simtime = 0;
+ reset_all();
+ reset_stat(sregs);
+ if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
+ stat = run_sim(sregs, -1, 0);
+ } else {
+ stat = run_sim(sregs, VAL(cmd1), 0);
+ }
+ daddr = sregs->pc;
+ sim_halt();
+ } else if (strncmp(cmd1, "shell", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
+ system(&cmdsave[clen]);
+ }
+ } else if (strncmp(cmd1, "step", clen) == 0) {
+ stat = run_sim(sregs, 1, 1);
+ daddr = sregs->pc;
+ sim_halt();
+ } else if (strncmp(cmd1, "tcont", clen) == 0) {
+ sregs->tlimit = limcalc(sregs->freq);
+ stat = run_sim(sregs, -1, 0);
+ daddr = sregs->pc;
+ sim_halt();
+ } else if (strncmp(cmd1, "tgo", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
+ len = last_load_addr;
+ } else {
+ len = VAL(cmd1);
+ sregs->tlimit = limcalc(sregs->freq);
+ }
+ sregs->pc = len & ~3;
+ sregs->npc = sregs->pc + 4;
+ printf("resuming at 0x%08x\n",sregs->pc);
+ stat = run_sim(sregs, -1, 0);
+ daddr = sregs->pc;
+ sim_halt();
+ } else if (strncmp(cmd1, "tlimit", clen) == 0) {
+ sregs->tlimit = limcalc(sregs->freq);
+ if (sregs->tlimit != (uint32) -1)
+ printf("simulation limit = %u (%.3f ms)\n",(uint32) sregs->tlimit,
+ sregs->tlimit / sregs->freq / 1000);
+ } else if (strncmp(cmd1, "tra", clen) == 0) {
+ if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
+ stat = run_sim(sregs, -1, 1);
+ } else {
+ stat = run_sim(sregs, VAL(cmd1), 1);
+ }
+ printf("\n");
+ daddr = sregs->pc;
+ sim_halt();
+ } else if (strncmp(cmd1, "trun", clen) == 0) {
+ ebase.simtime = 0;
+ reset_all();
+ reset_stat(sregs);
+ sregs->tlimit = limcalc(sregs->freq);
+ stat = run_sim(sregs, -1, 0);
+ daddr = sregs->pc;
+ sim_halt();
+ } else
+ printf("syntax error\n");
+ }
+ if (cmdsave != NULL)
+ free(cmdsave);
+ return (stat);
+}
+
+
+void
+reset_stat(sregs)
+ struct pstate *sregs;
+{
+ sregs->tottime = 0;
+ sregs->pwdtime = 0;
+ sregs->ninst = 0;
+ sregs->fholdt = 0;
+ sregs->holdt = 0;
+ sregs->icntt = 0;
+ sregs->finst = 0;
+ sregs->nstore = 0;
+ sregs->nload = 0;
+ sregs->nbranch = 0;
+ sregs->simstart = ebase.simtime;
+
+}
+
+void
+show_stat(sregs)
+ struct pstate *sregs;
+{
+ uint32 iinst;
+ uint32 stime, tottime;
+
+ if (sregs->tottime == 0) tottime = 1; else tottime = sregs->tottime;
+ stime = ebase.simtime - sregs->simstart; /* Total simulated time */
+#ifdef STAT
+
+ iinst = sregs->ninst - sregs->finst - sregs->nload - sregs->nstore -
+ sregs->nbranch;
+#endif
+
+ printf("\n Cycles : %9d\n\r", ebase.simtime - sregs->simstart);
+ printf(" Instructions : %9d\n", sregs->ninst);
+
+#ifdef STAT
+ printf(" integer : %9.2f %%\n", 100.0 * (float) iinst / (float) sregs->ninst);
+ printf(" load : %9.2f %%\n",
+ 100.0 * (float) sregs->nload / (float) sregs->ninst);
+ printf(" store : %9.2f %%\n",
+ 100.0 * (float) sregs->nstore / (float) sregs->ninst);
+ printf(" branch : %9.2f %%\n",
+ 100.0 * (float) sregs->nbranch / (float) sregs->ninst);
+ printf(" float : %9.2f %%\n",
+ 100.0 * (float) sregs->finst / (float) sregs->ninst);
+ printf(" Integer CPI : %9.2f\n",
+ ((float) (stime - sregs->pwdtime - sregs->fholdt - sregs->finst))
+ /
+ (float) (sregs->ninst - sregs->finst));
+ printf(" Float CPI : %9.2f\n",
+ ((float) sregs->fholdt / (float) sregs->finst) + 1.0);
+#endif
+ printf(" Overall CPI : %9.2f\n",
+ (float) (stime - sregs->pwdtime) / (float) sregs->ninst);
+ printf("\n ERC32 performance (%4.1f MHz): %5.2f MOPS (%5.2f MIPS, %5.2f MFLOPS)\n",
+ sregs->freq, sregs->freq * (float) sregs->ninst / (float) (stime - sregs->pwdtime),
+ sregs->freq * (float) (sregs->ninst - sregs->finst) /
+ (float) (stime - sregs->pwdtime),
+ sregs->freq * (float) sregs->finst / (float) (stime - sregs->pwdtime));
+ printf(" Simulated ERC32 time : %5.2f ms\n", (float) (ebase.simtime - sregs->simstart) / 1000.0 / sregs->freq);
+ printf(" Processor utilisation : %5.2f %%\n", 100.0 * (1.0 - ((float) sregs->pwdtime / (float) stime)));
+ printf(" Real-time / simulator-time : 1/%.2f \n",
+ ((float) sregs->tottime) / ((float) (stime) / (sregs->freq * 1.0E6)));
+ printf(" Simulator performance : %d KIPS\n",sregs->ninst/tottime/1000);
+ printf(" Used time (sys + user) : %3d s\n\n", sregs->tottime);
+}
+
+
+
+void
+init_bpt(sregs)
+ struct pstate *sregs;
+{
+ sregs->bptnum = 0;
+ sregs->histlen = 0;
+ sregs->histind = 0;
+ sregs->histbuf = NULL;
+ sregs->tlimit = -1;
+}
+
+static void
+int_handler(sig)
+ int32 sig;
+{
+ if (sig != 2)
+ printf("\n\n Signal handler error (%d)\n\n", sig);
+ ctrl_c = 1;
+}
+
+void
+init_signals()
+{
+ typedef void (*PFI) ();
+ static PFI int_tab[2];
+
+ int_tab[0] = signal(SIGTERM, int_handler);
+ int_tab[1] = signal(SIGINT, int_handler);
+}
+
+
+extern struct disassemble_info dinfo;
+
+struct estate ebase;
+struct evcell evbuf[EVENT_MAX];
+struct irqcell irqarr[16];
+
+static int
+disp_fpu(sregs)
+ struct pstate *sregs;
+{
+
+ int i;
+ float t;
+
+ printf("\n fsr: %08X\n\n", sregs->fsr);
+
+#ifdef HOST_LITTLE_ENDIAN_FLOAT
+ for (i = 0; i < 32; i++)
+ sregs->fdp[i ^ 1] = sregs->fs[i];
+#endif
+
+ for (i = 0; i < 32; i++) {
+ t = sregs->fs[i];
+ printf(" f%02d %08x %14e ", i, sregs->fsi[i], sregs->fs[i]);
+ if (!(i & 1))
+ printf("%14e\n", sregs->fd[i >> 1]);
+ else
+ printf("\n");
+ }
+ printf("\n");
+ return (OK);
+}
+
+static void
+disp_regs(sregs,cwp)
+ struct pstate *sregs;
+ int cwp;
+{
+
+ int i;
+
+ cwp = ((cwp & 0x7) << 4);
+ printf("\n\t INS LOCALS OUTS GLOBALS\n");
+ for (i = 0; i < 8; i++) {
+ printf(" %d: %08X %08X %08X %08X\n", i,
+ sregs->r[(cwp + i + 24) & 0x7f],
+ sregs->r[(cwp + i + 16) & 0x7f], sregs->r[(cwp + i + 8) & 0x7f],
+ sregs->g[i]);
+ }
+}
+
+static void
+disp_ctrl(sregs)
+ struct pstate *sregs;
+{
+
+ unsigned char i[4];
+
+ printf("\n psr: %08X wim: %08X tbr: %08X y: %08X\n",
+ sregs->psr, sregs->wim, sregs->tbr, sregs->y);
+ sis_memory_read(sregs->pc, i, 4);
+ printf("\n pc: %08X = %02X%02X%02X%02X ", sregs->pc,i[0],i[1],i[2],i[3]);
+ print_insn_sparc(sregs->pc, &dinfo);
+ sis_memory_read(sregs->npc, i, 4);
+ printf("\n npc: %08X = %02X%02X%02X%02X ",sregs->npc,i[0],i[1],i[2],i[3]);
+ print_insn_sparc(sregs->npc, &dinfo);
+ if (sregs->err_mode)
+ printf("\n IU in error mode");
+ printf("\n\n");
+}
+
+static void
+disp_mem(addr, len)
+ uint32 addr;
+ uint32 len;
+{
+
+ uint32 i;
+ unsigned char data[4];
+ uint32 mem[4], j;
+ char *p;
+
+ for (i = addr & ~3; i < ((addr + len) & ~3); i += 16) {
+ printf("\n %8X ", i);
+ for (j = 0; j < 4; j++) {
+ sis_memory_read((i + (j * 4)), data, 4);
+ printf("%02x%02x%02x%02x ", data[0],data[1],data[2],data[3]);
+ mem[j] = *((int *) &data);
+ }
+ printf(" ");
+ p = (char *) mem;
+ for (j = 0; j < 16; j++) {
+ if (isprint(p[j]))
+ putchar(p[j]);
+ else
+ putchar('.');
+ }
+ }
+ printf("\n\n");
+}
+
+void
+dis_mem(addr, len, info)
+ uint32 addr;
+ uint32 len;
+ struct disassemble_info *info;
+{
+ uint32 i;
+ unsigned char data[4];
+
+ for (i = addr & -3; i < ((addr & -3) + (len << 2)); i += 4) {
+ sis_memory_read(i, data, 4);
+ printf(" %08x %02x%02x%02x%02x ", i, data[0],data[1],data[2],data[3]);
+ print_insn_sparc(i, info);
+ if (i >= 0xfffffffc) break;
+ printf("\n");
+ }
+}
+
+int
+buffer_read_memory(addr, buffer, size, info)
+ bfd_vma addr;
+ bfd_byte *buffer;
+ int32 size;
+ struct disassemble_info *info;
+{
+ if (size == sis_memory_read(addr, buffer, size))
+ return (0);
+ else
+ return (1);
+}
+
+void
+perror_memory(status, addr, info)
+ int32 status;
+ bfd_vma addr;
+ struct disassemble_info *info;
+{
+
+ printf("Could not read address 0x%08x\n", (unsigned int) addr);
+}
+
+void
+generic_print_address(addr, info)
+ bfd_vma addr;
+ struct disassemble_info *info;
+{
+
+ printf("0x%x", (unsigned int) addr);
+}
+
+/* Just return the given address. */
+
+int
+generic_symbol_at_address (addr, info)
+ bfd_vma addr;
+ struct disassemble_info * info;
+{
+ return 1;
+}
+
+
+/* Add event to event queue */
+
+void
+event(cfunc, arg, delta)
+ void (*cfunc) ();
+ int32 arg;
+ uint32 delta;
+{
+ struct evcell *ev1, *evins;
+
+ if (ebase.freeq == NULL) {
+ printf("Error, too many events in event queue\n");
+ return;
+ }
+ ev1 = &ebase.eq;
+ delta += ebase.simtime;
+ while ((ev1->nxt != NULL) && (ev1->nxt->time <= delta)) {
+ ev1 = ev1->nxt;
+ }
+ if (ev1->nxt == NULL) {
+ ev1->nxt = ebase.freeq;
+ ebase.freeq = ebase.freeq->nxt;
+ ev1->nxt->nxt = NULL;
+ } else {
+ evins = ebase.freeq;
+ ebase.freeq = ebase.freeq->nxt;
+ evins->nxt = ev1->nxt;
+ ev1->nxt = evins;
+ }
+ ev1->nxt->time = delta;
+ ev1->nxt->cfunc = cfunc;
+ ev1->nxt->arg = arg;
+}
+
+#if 0 /* apparently not used */
+void
+stop_event()
+{
+}
+#endif
+
+void
+init_event()
+{
+ int32 i;
+
+ ebase.eq.nxt = NULL;
+ ebase.freeq = evbuf;
+ for (i = 0; i < EVENT_MAX; i++) {
+ evbuf[i].nxt = &evbuf[i + 1];
+ }
+ evbuf[EVENT_MAX - 1].nxt = NULL;
+}
+
+void
+set_int(level, callback, arg)
+ int32 level;
+ void (*callback) ();
+ int32 arg;
+{
+ irqarr[level & 0x0f].callback = callback;
+ irqarr[level & 0x0f].arg = arg;
+}
+
+/* Advance simulator time */
+
+void
+advance_time(sregs)
+ struct pstate *sregs;
+{
+
+ struct evcell *evrem;
+ void (*cfunc) ();
+ uint32 arg, endtime;
+
+#ifdef STAT
+ sregs->fholdt += sregs->fhold;
+ sregs->holdt += sregs->hold;
+ sregs->icntt += sregs->icnt;
+#endif
+
+ endtime = ebase.simtime + sregs->icnt + sregs->hold + sregs->fhold;
+
+ while ((ebase.eq.nxt->time <= (endtime)) && (ebase.eq.nxt != NULL)) {
+ ebase.simtime = ebase.eq.nxt->time;
+ cfunc = ebase.eq.nxt->cfunc;
+ arg = ebase.eq.nxt->arg;
+ evrem = ebase.eq.nxt;
+ ebase.eq.nxt = ebase.eq.nxt->nxt;
+ evrem->nxt = ebase.freeq;
+ ebase.freeq = evrem;
+ cfunc(arg);
+ }
+ ebase.simtime = endtime;
+
+}
+
+uint32
+now()
+{
+ return(ebase.simtime);
+}
+
+
+/* Advance time until an external interrupt is seen */
+
+int
+wait_for_irq()
+{
+ struct evcell *evrem;
+ void (*cfunc) ();
+ int32 arg, endtime;
+
+ if (ebase.eq.nxt == NULL)
+ printf("Warning: event queue empty - power-down mode not entered\n");
+ endtime = ebase.simtime;
+ while (!ext_irl && (ebase.eq.nxt != NULL)) {
+ ebase.simtime = ebase.eq.nxt->time;
+ cfunc = ebase.eq.nxt->cfunc;
+ arg = ebase.eq.nxt->arg;
+ evrem = ebase.eq.nxt;
+ ebase.eq.nxt = ebase.eq.nxt->nxt;
+ evrem->nxt = ebase.freeq;
+ ebase.freeq = evrem;
+ cfunc(arg);
+ if (ctrl_c) {
+ printf("\bwarning: power-down mode interrupted\n");
+ break;
+ }
+ }
+ sregs.pwdtime += ebase.simtime - endtime;
+ return (ebase.simtime - endtime);
+}
+
+int
+check_bpt(sregs)
+ struct pstate *sregs;
+{
+ int32 i;
+
+ if ((sregs->bphit) || (sregs->annul))
+ return (0);
+ for (i = 0; i < (int32) sregs->bptnum; i++) {
+ if (sregs->pc == sregs->bpts[i])
+ return (BPT_HIT);
+ }
+ return (0);
+}
+
+void
+reset_all()
+{
+ init_event(); /* Clear event queue */
+ init_regs(&sregs);
+ reset();
+#ifdef ERRINJ
+ errinjstart();
+#endif
+}
+
+void
+sys_reset()
+{
+ reset_all();
+ sregs.trap = 256; /* Force fake reset trap */
+}
+
+void
+sys_halt()
+{
+ sregs.trap = 257; /* Force fake halt trap */
+}
+
+#include "ansidecl.h"
+
+#ifdef ANSI_PROTOTYPES
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+#include "libiberty.h"
+#include "bfd.h"
+
+#define min(A, B) (((A) < (B)) ? (A) : (B))
+#define LOAD_ADDRESS 0
+
+int
+bfd_load(fname)
+ char *fname;
+{
+ asection *section;
+ bfd *pbfd;
+ const bfd_arch_info_type *arch;
+
+ pbfd = bfd_openr(fname, 0);
+
+ if (pbfd == NULL) {
+ printf("open of %s failed\n", fname);
+ return (-1);
+ }
+ if (!bfd_check_format(pbfd, bfd_object)) {
+ printf("file %s doesn't seem to be an object file\n", fname);
+ return (-1);
+ }
+
+ arch = bfd_get_arch_info (pbfd);
+ if (bfd_little_endian (pbfd) || arch->mach == bfd_mach_sparc_sparclite_le)
+ current_target_byte_order = LITTLE_ENDIAN;
+ else
+ current_target_byte_order = BIG_ENDIAN;
+ if (sis_verbose)
+ printf("file %s is %s-endian.\n", fname,
+ current_target_byte_order == BIG_ENDIAN ? "big" : "little");
+
+ if (sis_verbose)
+ printf("loading %s:", fname);
+ for (section = pbfd->sections; section; section = section->next) {
+ if (bfd_get_section_flags(pbfd, section) & SEC_ALLOC) {
+ bfd_vma section_address;
+ unsigned long section_size;
+ const char *section_name;
+
+ section_name = bfd_get_section_name(pbfd, section);
+
+ section_address = bfd_get_section_vma(pbfd, section);
+ /*
+ * Adjust sections from a.out files, since they don't carry their
+ * addresses with.
+ */
+ if (bfd_get_flavour(pbfd) == bfd_target_aout_flavour) {
+ if (strcmp (section_name, ".text") == 0)
+ section_address = bfd_get_start_address (pbfd);
+ else if (strcmp (section_name, ".data") == 0) {
+ /* Read the first 8 bytes of the data section.
+ There should be the string 'DaTa' followed by
+ a word containing the actual section address. */
+ struct data_marker
+ {
+ char signature[4]; /* 'DaTa' */
+ unsigned char sdata[4]; /* &sdata */
+ } marker;
+ bfd_get_section_contents (pbfd, section, &marker, 0,
+ sizeof (marker));
+ if (strncmp (marker.signature, "DaTa", 4) == 0)
+ {
+ if (current_target_byte_order == BIG_ENDIAN)
+ section_address = bfd_getb32 (marker.sdata);
+ else
+ section_address = bfd_getl32 (marker.sdata);
+ }
+ }
+ }
+
+ section_size = bfd_section_size(pbfd, section);
+
+ if (sis_verbose)
+ printf("\nsection %s at 0x%08lx (0x%lx bytes)",
+ section_name, section_address, section_size);
+
+ /* Text, data or lit */
+ if (bfd_get_section_flags(pbfd, section) & SEC_LOAD) {
+ file_ptr fptr;
+
+ fptr = 0;
+
+ while (section_size > 0) {
+ char buffer[1024];
+ int count;
+
+ count = min(section_size, 1024);
+
+ bfd_get_section_contents(pbfd, section, buffer, fptr, count);
+
+ sis_memory_write(section_address, buffer, count);
+
+ section_address += count;
+ fptr += count;
+ section_size -= count;
+ }
+ } else /* BSS */
+ if (sis_verbose)
+ printf("(not loaded)");
+ }
+ }
+ if (sis_verbose)
+ printf("\n");
+
+ return(bfd_get_start_address (pbfd));
+}
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