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minor update

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This commit is contained in:
Blaise Tine 2021-09-23 03:56:36 -04:00
parent 9b04f3d9d6
commit b8cfc0525e
1 changed files with 7 additions and 1 deletions
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8
simX/decode.cpp
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@ -294,7 +294,13 @@ std::shared_ptr<Instr> Decoder::decode(Word code) {
int rs2 = (code >> shift_rs2_) & reg_mask_;
int rs3 = (code >> shift_rs3_) & reg_mask_;
auto iType = sc_instTable.at(op).iType;
auto op_it = sc_instTable.find(op);
if (op_it == sc_instTable.end()) {
std::cout << std::hex << "invalid opcode: 0x" << op << ", instruction=0x" << code << std::endl;
std::abort();
}
auto iType = op_it->second.iType;
if (op == Opcode::FL || op == Opcode::FS) {
if (func3 != 0x2) {
iType = InstType::V_TYPE;