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Debugger disassembler: erase repe/repne prefix if SSE instruction

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This commit is contained in:
Jonathan Campbell 2021-12-30 19:28:15 -08:00
parent 7480a1bf4b
commit 2b2c2bc582
1 changed files with 17 additions and 0 deletions
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17
src/debug/debug_disasm.cpp
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@ -632,6 +632,21 @@ static void uputchar(char c)
*ubufp = 0;
}
static void ua_backspace_repe(void) {
char *s = ubufp - 1;
while (s >= ubufs && (*s == ' ')) s--;
while (s >= ubufs && (*s != ' ')) s--;
s++;
if (s < ubufs) return;
if (!strncmp(s,"repe ",5) || !strncmp(s,"repne ",6)) {
/* set write pointer here, to overwrite it */
*s = 0; ubufp = s;
}
}
/*------------------------------------------------------------------------*/
static int bytes(char c)
@ -1093,6 +1108,8 @@ static void percent(char type, char subtype)
break;
case 'x':
/* problem: for SSE opcodes with REPE/REPNE mandatory prefix this code will have already written repne/repe so that needs to be wiped out of the buffer */
if (last_prefix == MP_F2 || last_prefix == MP_F3) ua_backspace_repe();
ua_str(mpgroups[subtype-'0'][last_c][last_prefix]);
break;