github.com/simh.simh
1
0
Fork 0
mirror of https://github.com/simh/simh.git synced 2026-03-04 02:24:47 +00:00
Code Releases Activity

PDP11: Add SP to instruction history

Browse Source
This commit is contained in:
Bob Supnik
2019-04-15 19:18:27 -07:00
committed by Mark Pizzolato
parent fd062ddf2c
commit d90ed88199
1 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
PDP11/pdp11_cpu.c
View File

@@ -258,6 +258,8 @@ typedef struct {
uint16 psw;
uint16 src;
uint16 dst;
uint16 sp;
uint16 pad;
uint16 inst[HIST_ILNT];
} InstHistory;
@@ -840,6 +842,7 @@ while (reason == 0) {
SWMASK ('U') | SWMASK ('V'), SWMASK ('U') | SWMASK ('V')
};
hst[hst_p].pc = PC | HIST_VLD;
hst[hst_p].sp = SP;
hst[hst_p].psw = get_PSW ();
hst[hst_p].src = R[srcspec & 07];
hst[hst_p].dst = R[dstspec & 07];
@@ -3147,12 +3150,12 @@ else lnt = hst_lnt;
di = hst_p - lnt; /* work forward */
if (di < 0)
di = di + hst_lnt;
fprintf (st, "PC PSW src dst IR\n\n");
fprintf (st, "PC SP PSW src dst IR\n\n");
for (k = 0; k < lnt; k++) { /* print specified */
h = &hst[(di++) % hst_lnt]; /* entry pointer */
if (h->pc & HIST_VLD) { /* instruction? */
ir = h->inst[0];
fprintf (st, "%06o %06o|", h->pc & ~HIST_VLD, h->psw);
fprintf (st, "%06o %06o %06o|", h->pc & ~HIST_VLD, h->sp, h->psw);
if (((ir & 0070000) != 0) || /* dops, eis, fpp */
((ir & 0177000) == 0004000)) /* jsr */
fprintf (st, "%06o %06o ", h->src, h->dst);