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Assorted Cyrix (and Codegen opcode Mod R/M passing table) fixes - fixes Windows 98 SE on Cyrix 6x86's with power management enabled.

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OBattler
2025-03-17 03:40:52 +01:00
parent c5d4910479
commit 79134f3b21
11 changed files with 102 additions and 21 deletions
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2
src/cpu/x86_ops_rep.h
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@@ -855,6 +855,7 @@ opREPNE(uint32_t fetchdat)
CLOCK_CYCLES(2);
PREFETCH_PREFIX();
rep_op = fetchdat & 0xff;
if (x86_opcodes_REPNE[(fetchdat & 0xff) | cpu_state.op32])
return x86_opcodes_REPNE[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
return x86_opcodes[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
@@ -869,6 +870,7 @@ opREPE(uint32_t fetchdat)
CLOCK_CYCLES(2);
PREFETCH_PREFIX();
rep_op = fetchdat & 0xff;
if (x86_opcodes_REPE[(fetchdat & 0xff) | cpu_state.op32])
return x86_opcodes_REPE[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
return x86_opcodes[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);