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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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10
SEL32/sel32_cpu.c
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@@ -7548,8 +7548,10 @@ cpu_set_hist(UNIT *uptr, int32 val, CONST char *cptr, void *desc)
}
/* the user has specified options, process them */
lnt = (int32)get_uint(cptr, 10, HIST_MAX, &r);
if ((r != SCPE_OK) || (lnt && (lnt < HIST_MIN)))
return SCPE_ARG; /* arg error for bad input or too small a value */
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; /* start at beginning */
if (hst_lnt) { /* if a new length was input, resize history buffer */
free(hst); /* out with the old */
@@ -7586,6 +7588,10 @@ t_stat cpu_show_hist(FILE *st, UNIT *uptr, int32 val, CONST void *desc)
if (di < 0)
di = di + hst_lnt; /* wrap */
for (k = 0; k < lnt; k++) { /* print specified entries */
if (stop_cpu) { /* Control-C (SIGINT) */
stop_cpu = FALSE;
break; /* abandon remaining output */
}
h = &hst[(++di) % hst_lnt]; /* entry pointer */
/* display the instruction and results */
if (MODES & BASEBIT)