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Fix M-extension funct7 decoding #358

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Fix M-extension funct7 decoding #358

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2 changes: 1 addition & 1 deletion sim/simx/decode.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -552,7 +552,7 @@ void Emulator::decode(uint32_t code, uint32_t wid, uint64_t uuid) {
instr->setOpType(AluType::CZERO);
instr->setArgs(IntrAluArgs{0, 0, imm});
} else
if ((op == Opcode::R || op == Opcode::R_W) && (funct7 & 0x1)) {
if ((op == Opcode::R || op == Opcode::R_W) && (funct7 == 0x1)) {
switch (funct3) {
case 0: { // RV32M: MUL
instr->setOpType(MdvType::MUL);
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