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CPU: Add hack for stale icache reads in interpreter

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This commit is contained in:
Connor McLaughlin 2020-09-20 01:36:44 +10:00
parent db84bdb560
commit 25f45fbd23
1 changed files with 11 additions and 0 deletions
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11
src/core/cpu_core.cpp
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@ -467,6 +467,7 @@ void DisassembleAndPrint(u32 addr, u32 instructions_before /* = 0 */, u32 instru
template<PGXPMode pgxp_mode> template<PGXPMode pgxp_mode>
ALWAYS_INLINE_RELEASE static void ExecuteInstruction() ALWAYS_INLINE_RELEASE static void ExecuteInstruction()
{ {
restart_instruction:
const Instruction inst = g_state.current_instruction; const Instruction inst = g_state.current_instruction;
#if 0 #if 0
@ -1348,6 +1349,16 @@ ALWAYS_INLINE_RELEASE static void ExecuteInstruction()
// everything else is reserved/invalid // everything else is reserved/invalid
default: default:
{ {
u32 ram_value;
if (SafeReadInstruction(g_state.current_instruction_pc, &ram_value) &&
ram_value != g_state.current_instruction.bits)
{
Log_ErrorPrintf("Stale icache at 0x%08X - ICache: %08X RAM: %08X", g_state.current_instruction_pc,
g_state.current_instruction.bits, ram_value);
g_state.current_instruction.bits = ram_value;
goto restart_instruction;
}
RaiseException(Exception::RI); RaiseException(Exception::RI);
} }
break; break;