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A64: Implement SM3PARTW2

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Lioncash 2018-04-10 14:24:04 -04:00 committed by MerryMage
parent e1b662e90c
commit 20d2491267
2 changed files with 24 additions and 1 deletions
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2
src/frontend/A64/decoder/a64.inc
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@ -863,7 +863,7 @@ INST(SM3TT2B, "SM3TT2B", "11001
//INST(SHA512SU1, "SHA512SU1", "11001110011mmmmm100010nnnnnddddd")
INST(RAX1, "RAX1", "11001110011mmmmm100011nnnnnddddd")
//INST(SM3PARTW1, "SM3PARTW1", "11001110011mmmmm110000nnnnnddddd")
//INST(SM3PARTW2, "SM3PARTW2", "11001110011mmmmm110001nnnnnddddd")
INST(SM3PARTW2, "SM3PARTW2", "11001110011mmmmm110001nnnnnddddd")
//INST(SM4EKEY, "SM4EKEY", "11001110011mmmmm110010nnnnnddddd")
// Data Processing - FP and SIMD - Cryptographic four register

23
src/frontend/A64/translate/impl/simd_sha512.cpp
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@ -20,4 +20,27 @@ bool TranslatorVisitor::RAX1(Vec Vm, Vec Vn, Vec Vd) {
return true;
}
bool TranslatorVisitor::SM3PARTW2(Vec Vm, Vec Vn, Vec Vd) {
const IR::U128 d = ir.GetQ(Vd);
const IR::U128 m = ir.GetQ(Vm);
const IR::U128 n = ir.GetQ(Vn);
const IR::U128 temp = ir.VectorEor(n, ir.VectorRotateLeft(32, m, 7));
const IR::U128 temp_result = ir.VectorEor(d, temp);
const IR::U32 temp2 = [&] {
const IR::U32 rotate1 = ir.RotateRight(ir.VectorGetElement(32, temp, 0), ir.Imm8(17));
const IR::U32 rotate2 = ir.RotateRight(rotate1, ir.Imm8(17));
const IR::U32 rotate3 = ir.RotateRight(rotate1, ir.Imm8(9));
return ir.Eor(rotate1, ir.Eor(rotate2, rotate3));
}();
const IR::U32 high_temp_result = ir.VectorGetElement(32, temp_result, 3);
const IR::U32 replacement = ir.Eor(high_temp_result, temp2);
const IR::U128 result = ir.VectorSetElement(32, temp_result, 3, replacement);
ir.SetQ(Vd, result);
return true;
}
} // namespace Dynarmic::A64