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ALL simulators with instruction history support: Minor history enhancements

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- Issue reasonable error message explaining invalid SET CPU HISTORY=n input
- Let SIGINT (^C) abort SHOW HISTORY output
This commit is contained in:
Mark Pizzolato
2023-12-04 10:57:31 -10:00
parent 42d6f414fc
commit 6d376b2fd9
29 changed files with 245 additions and 74 deletions
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12
Intel-Systems/common/i8080.c
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@@ -1555,8 +1555,10 @@ t_stat cpu_set_hist(UNIT *uptr, int32 val, CONST char *cptr, void *desc)
return SCPE_OK;
}
lnt = (int32) get_uint (cptr, 10, HIST_MAX, &r);
if ((r != SCPE_OK) || (lnt && (lnt < HIST_MIN)))
return SCPE_ARG;
if (r != SCPE_OK)
return sim_messagef (SCPE_ARG, "Invalid Numeric Value: %s. Maximum is %d\n", cptr, HIST_MAX);
if (lnt && (lnt < HIST_MIN))
return sim_messagef (SCPE_ARG, "%d is less than the minumum history value of %d\n", lnt, HIST_MIN);
hst_p = 0;
if (hst_lnt) {
free (hst);
@@ -1586,7 +1588,7 @@ t_stat cpu_show_hist(FILE *st, UNIT *uptr, int32 val, CONST void *desc)
if (cptr) {
lnt = (int32) get_uint (cptr, 10, hst_lnt, &r);
if ((r != SCPE_OK) || (lnt == 0))
return SCPE_ARG;
return sim_messagef (SCPE_ARG, "Invalid count specifier: %s, max is %d\n", cptr, hst_lnt);
}
else lnt = hst_lnt;
di = hst_p - lnt; /* work forward */
@@ -1594,6 +1596,10 @@ t_stat cpu_show_hist(FILE *st, UNIT *uptr, int32 val, CONST void *desc)
di = di + hst_lnt;
fprintf (st, "PC SP CC A B C D E F H L Instruction\n\n");
for (k = 0; k < lnt; k++) { /* print specified */
if (stop_cpu) { /* Control-C (SIGINT) */
stop_cpu = FALSE;
break; /* abandon remaining output */
}
h = &hst[(di++) % hst_lnt]; /* entry pointer */
ir = h->inst[0];
fprintf (st, "%04X %04X %02X ", h->pc , h->sp, h->psw);