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A64: Implement FABD's scalar single/double precision variant

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Lioncash 2018-06-08 20:44:52 -04:00 committed by MerryMage
parent d898d1779d
commit 9e75d08860
2 changed files with 13 additions and 1 deletions
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2
src/frontend/A64/decoder/a64.inc
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@ -351,7 +351,7 @@ INST(DUP_elt_1, "DUP (element)", "01011
//INST(FACGE_1, "FACGE", "01111110010mmmmm001011nnnnnddddd")
//INST(FACGE_2, "FACGE", "011111100z1mmmmm111011nnnnnddddd")
//INST(FABD_1, "FABD", "01111110110mmmmm000101nnnnnddddd")
//INST(FABD_2, "FABD", "011111101z1mmmmm110101nnnnnddddd")
INST(FABD_2, "FABD", "011111101z1mmmmm110101nnnnnddddd")
//INST(FCMGT_reg_1, "FCMGT (register)", "01111110110mmmmm001001nnnnnddddd")
//INST(FCMGT_reg_2, "FCMGT (register)", "011111101z1mmmmm111001nnnnnddddd")
//INST(FACGT_1, "FACGT", "01111110110mmmmm001011nnnnnddddd")

12
src/frontend/A64/translate/impl/simd_scalar_three_same.cpp
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@ -130,6 +130,18 @@ bool TranslatorVisitor::CMTST_1(Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
return true;
}
bool TranslatorVisitor::FABD_2(bool sz, Vec Vm, Vec Vn, Vec Vd) {
const size_t esize = sz ? 64 : 32;
const IR::U128 operand1 = V(esize, Vn);
const IR::U128 operand2 = V(esize, Vm);
const IR::U128 difference = ir.FPVectorAbsoluteDifference(esize, operand1, operand2);
const IR::U128 result = ir.VectorZeroUpper(difference);
V(128, Vd, result);
return true;
}
bool TranslatorVisitor::SSHL_1(Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size != 0b11) {
return ReservedValue();