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improve nop handling and proper behaviour for LDM^

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fixes dslinux
This commit is contained in:
RSDuck
2020-02-04 17:28:51 +01:00
parent 60650fa82e
commit 9b98b8816a
9 changed files with 25 additions and 10 deletions
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13
src/ARMJIT.cpp
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@ -273,6 +273,8 @@ bool IsIdleLoop(FetchedInstr* instrs, int instrsCount)
typedef void (*InterpreterFunc)(ARM* cpu);
void NOP(ARM* cpu) {}
#define F(x) &ARMInterpreter::A_##x
#define F_ALU(name, s) \
F(name##_REG_LSL_IMM##s), F(name##_REG_LSR_IMM##s), F(name##_REG_ASR_IMM##s), F(name##_REG_ROR_IMM##s), \
@ -320,7 +322,8 @@ InterpreterFunc InterpretARM[ARMInstrInfo::ak_Count] =
F(LDM), F(STM),
F(B), F(BL), F(BLX_IMM), F(BX), F(BLX_REG),
F(UNK), F(MSR_IMM), F(MSR_REG), F(MRS), F(MCR), F(MRC), F(SVC)
F(UNK), F(MSR_IMM), F(MSR_REG), F(MRS), F(MCR), F(MRC), F(SVC),
NOP
};
#undef F_ALU
#undef F_MEM_WB
@ -387,8 +390,8 @@ void CompileBlock(ARM* cpu)
u32 nextInstr[2] = {cpu->NextInstr[0], cpu->NextInstr[1]};
u32 nextInstrAddr[2] = {blockAddr, r15};
JIT_DEBUGPRINT("start block %x (%x) %p %p (region invalidates %dx)\n",
blockAddr, pseudoPhysicalAddr, FastBlockAccess[pseudoPhysicalAddr / 2],
JIT_DEBUGPRINT("start block %x %08x (%x) %p %p (region invalidates %dx)\n",
blockAddr, cpu->CPSR, pseudoPhysicalAddr, FastBlockAccess[pseudoPhysicalAddr / 2],
cpu->Num == 0 ? LookUpBlock<0>(blockAddr) : LookUpBlock<1>(blockAddr),
CodeRanges[pseudoPhysicalAddr / 512].TimesInvalidated);
@ -473,7 +476,9 @@ void CompileBlock(ARM* cpu)
else
{
u32 icode = ((instrs[i].Instr >> 4) & 0xF) | ((instrs[i].Instr >> 16) & 0xFF0);
assert(InterpretARM[instrs[i].Info.Kind] == ARMInterpreter::ARMInstrTable[icode] || instrs[i].Info.Kind == ARMInstrInfo::ak_MOV_REG_LSL_IMM);
assert(InterpretARM[instrs[i].Info.Kind] == ARMInterpreter::ARMInstrTable[icode]
|| instrs[i].Info.Kind == ARMInstrInfo::ak_MOV_REG_LSL_IMM
|| instrs[i].Info.Kind == ARMInstrInfo::ak_Nop);
if (cpu->CheckCondition(instrs[i].Cond()))
InterpretARM[instrs[i].Info.Kind](cpu);
else