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Further fix the V20/V30 ins() and outs() instructions.

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This commit is contained in:
OBattler
2023-10-11 18:43:53 +02:00
parent 528c269cdd
commit 74ba935a0c
1 changed files with 4 additions and 7 deletions
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11
src/cpu/808x.c
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@@ -1960,18 +1960,17 @@ stos(int bits)
static void static void
ins(int bits) ins(int bits)
{ {
cpu_state.eaaddr = DI; cpu_state.eaaddr = DX;
cpu_io(bits, 0, cpu_state.eaaddr); cpu_io(bits, 0, cpu_state.eaaddr);
DI = string_increment(bits); stos(bits);
} }
static void static void
outs(int bits) outs(int bits)
{ {
cpu_state.eaaddr = SI; lods(bits);
cpu_data = (bits == 16) ? AX : AL; cpu_state.eaaddr = DX;
cpu_io(bits, 1, cpu_state.eaaddr); cpu_io(bits, 1, cpu_state.eaaddr);
SI = string_increment(bits);
} }
static void static void
@@ -2274,7 +2273,6 @@ execx86(int cycs)
bits = 8 << (opcode & 1); bits = 8 << (opcode & 1);
if (rep_start()) { if (rep_start()) {
ins(bits); ins(bits);
set_accum(bits, cpu_data);
wait(3, 0); wait(3, 0);
if (in_rep != 0) { if (in_rep != 0) {
@@ -2304,7 +2302,6 @@ execx86(int cycs)
handled = 1; handled = 1;
bits = 8 << (opcode & 1); bits = 8 << (opcode & 1);
if (rep_start()) { if (rep_start()) {
cpu_data = AX;
wait(1, 0); wait(1, 0);
outs(bits); outs(bits);
if (in_rep != 0) { if (in_rep != 0) {