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A64: Implement CLZ

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Lioncash 2018-01-22 10:54:48 -05:00 committed by MerryMage
parent b612782445
commit b7c5055d42
2 changed files with 11 additions and 1 deletions
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2
src/frontend/A64/decoder/a64.inc
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@ -288,7 +288,7 @@ INST(RORV, "RORV", "z0011
//INST(RBIT_int, "RBIT", "z101101011000000000000nnnnnddddd")
INST(REV16_int, "REV16", "z101101011000000000001nnnnnddddd")
INST(REV, "REV", "z10110101100000000001onnnnnddddd")
//INST(CLZ_int, "CLZ", "z101101011000000000100nnnnnddddd")
INST(CLZ_int, "CLZ", "z101101011000000000100nnnnnddddd")
//INST(CLS_int, "CLS", "z101101011000000000101nnnnnddddd")
INST(REV32_int, "REV32", "1101101011000000000010nnnnnddddd")
//INST(PACDA, "PACDA, PACDZA", "110110101100000100Z010nnnnnddddd")

10
src/frontend/A64/translate/impl/data_processing_register.cpp
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@ -9,6 +9,16 @@
namespace Dynarmic {
namespace A64 {
bool TranslatorVisitor::CLZ_int(bool sf, Reg Rn, Reg Rd) {
const size_t datasize = sf ? 64 : 32;
const IR::U32U64 operand = X(datasize, Rn);
const IR::U32U64 result = ir.CountLeadingZeros(operand);
X(datasize, Rd, result);
return true;
}
bool TranslatorVisitor::REV(bool sf, bool opc_0, Reg Rn, Reg Rd) {
const size_t datasize = sf ? 64 : 32;