claunia/86Box
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source
This commit is contained in:
OBattler
2025-03-17 03:40:52 +01:00
parent c5d4910479
commit 79134f3b21
11 changed files with 102 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/cpu/x86_ops_rep_2386.h
View File

@@ -843,6 +843,7 @@ opREPNE(uint32_t fetchdat)
CLOCK_CYCLES(2);
PREFETCH_PREFIX();
rep_op = fetchdat & 0xff;
if (x86_2386_opcodes_REPNE[(fetchdat & 0xff) | cpu_state.op32])
return x86_2386_opcodes_REPNE[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
return x86_2386_opcodes[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
@@ -857,6 +858,7 @@ opREPE(uint32_t fetchdat)
CLOCK_CYCLES(2);
PREFETCH_PREFIX();
rep_op = fetchdat & 0xff;
if (x86_2386_opcodes_REPE[(fetchdat & 0xff) | cpu_state.op32])
return x86_2386_opcodes_REPE[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
return x86_2386_opcodes[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);