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ppc: add LWBRX and LHBRX to PPC assembler

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Crementif
2026-07-23 21:51:06 +02:00
parent f6a8883d29
commit fce56be36b
2 changed files with 24 additions and 0 deletions
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22
src/Cemu/PPCAssembler/ppcAssembler.cpp
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@@ -205,6 +205,8 @@ const char* ppcAssembler_getInstructionName(uint32 ppcAsmOp)
case PPCASM_OP_STBX: return "STBX";
case PPCASM_OP_STBUX: return "STBUX";
case PPCASM_OP_STSWI: return "STSWI";
case PPCASM_OP_LWBRX: return "LWBRX";
case PPCASM_OP_LHBRX: return "LHBRX";
case PPCASM_OP_STWBRX: return "STWBRX";
case PPCASM_OP_STHBRX: return "STHBRX";
@@ -1288,6 +1290,8 @@ PPCInstructionDef ppcInstructionTable[] =
{PPCASM_OP_STHUX, 0, 31, 439, OPC_NONE, OP_FORM_DYNAMIC, FLG_DEFAULT, 0, 0, nullptr, {EncodedOperand_GPR(21), EncodedOperand_GPR<true>(16), EncodedOperand_GPR(11)} },
{PPCASM_OP_STBX, 0, 31, 215, OPC_NONE, OP_FORM_DYNAMIC, FLG_DEFAULT, 0, 0, nullptr, {EncodedOperand_GPR(21), EncodedOperand_GPR<true>(16), EncodedOperand_GPR(11)} },
{PPCASM_OP_STBUX, 0, 31, 247, OPC_NONE, OP_FORM_DYNAMIC, FLG_DEFAULT, 0, 0, nullptr, {EncodedOperand_GPR(21), EncodedOperand_GPR<true>(16), EncodedOperand_GPR(11)} },
{PPCASM_OP_LWBRX, 0, 31, 534, OPC_NONE, OP_FORM_DYNAMIC, FLG_DEFAULT, 0, 0, nullptr, {EncodedOperand_GPR(21), EncodedOperand_GPR<true>(16), EncodedOperand_GPR(11)} },
{PPCASM_OP_LHBRX, 0, 31, 790, OPC_NONE, OP_FORM_DYNAMIC, FLG_DEFAULT, 0, 0, nullptr, {EncodedOperand_GPR(21), EncodedOperand_GPR<true>(16), EncodedOperand_GPR(11)} },
{PPCASM_OP_STWBRX, 0, 31, 662, OPC_NONE, OP_FORM_DYNAMIC, FLG_DEFAULT, 0, 0, nullptr, {EncodedOperand_GPR(21), EncodedOperand_GPR<true>(16), EncodedOperand_GPR(11)} },
{PPCASM_OP_STHBRX, 0, 31, 918, OPC_NONE, OP_FORM_DYNAMIC, FLG_DEFAULT, 0, 0, nullptr, {EncodedOperand_GPR(21), EncodedOperand_GPR<true>(16), EncodedOperand_GPR(11)} },
@@ -3417,6 +3421,24 @@ void ppcAsmTestDisassembler()
checkOpFPR(1, 12);
checkOpFPR(2, 13);
// LWBRX
_testAsm(0x7C642C2C, "lwbrx r3, r4, r5");
_testAsm(0x7C604C2C, "lwbrx r3, 0, r9"); // rA = 0 form
disassemble(0x7C642C2C, PPCASM_OP_LWBRX);
checkOperandMask(true, true, true);
checkOpGPR(0, 3);
checkOpGPR(1, 4);
checkOpGPR(2, 5);
// LHBRX
_testAsm(0x7C642E2C, "lhbrx r3, r4, r5");
_testAsm(0x7C604E2C, "lhbrx r3, 0, r9"); // rA = 0 form
disassemble(0x7C642E2C, PPCASM_OP_LHBRX);
checkOperandMask(true, true, true);
checkOpGPR(0, 3);
checkOpGPR(1, 4);
checkOpGPR(2, 5);
// random extra tests
_testAsm(0x419D0040, "bgt cr7, .+0x40");
_testAsm(0x50AB042E, "rlwimi r11, r5, 0,16,23");

2
src/Cemu/PPCAssembler/ppcAssembler.h
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@@ -164,6 +164,8 @@ enum PPCASM_OP
PPCASM_OP_STBU,
PPCASM_OP_STBX,
PPCASM_OP_STBUX,
PPCASM_OP_LWBRX,
PPCASM_OP_LHBRX,
PPCASM_OP_STWBRX,
PPCASM_OP_STHBRX,
PPCASM_OP_STSWI,