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386 Interpreter: Check for debug breakpoint before segment limit and presence checking.

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OBattler
2025-03-16 21:20:15 +01:00
parent 3058acff0c
commit 9f200fe2e8
1 changed files with 5 additions and 5 deletions
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10
src/cpu/386.c
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@@ -264,11 +264,7 @@ exec386_2386(int32_t cycs)
ol = opcode_length[fetchdat & 0xff]; ol = opcode_length[fetchdat & 0xff];
if ((ol == 3) && opcode_has_modrm[fetchdat & 0xff] && (((fetchdat >> 14) & 0x03) == 0x03)) if ((ol == 3) && opcode_has_modrm[fetchdat & 0xff] && (((fetchdat >> 14) & 0x03) == 0x03))
ol = 2; ol = 2;
if (cpu_16bitbus) {
CHECK_READ_CS(MIN(ol, 2));
} else {
CHECK_READ_CS(MIN(ol, 4));
}
if (is386) if (is386)
ins_fetch_fault = cpu_386_check_instruction_fault(); ins_fetch_fault = cpu_386_check_instruction_fault();
@@ -276,6 +272,10 @@ exec386_2386(int32_t cycs)
if (ins_fetch_fault) { if (ins_fetch_fault) {
ins_fetch_fault = 0; ins_fetch_fault = 0;
cpu_state.abrt = 1; cpu_state.abrt = 1;
} else if (cpu_16bitbus) {
CHECK_READ_CS(MIN(ol, 2));
} else {
CHECK_READ_CS(MIN(ol, 4));
} }
if (!cpu_state.abrt) { if (!cpu_state.abrt) {