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A32: Implement ASIMD VSUB (integer)

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Lioncash 2020-06-18 22:18:54 -04:00 committed by merry
parent 4d6f68525d
commit 551e207661
3 changed files with 20 additions and 1 deletions
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2
src/frontend/A32/decoder/asimd.inc
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@ -22,7 +22,7 @@ INST(asimd_VQSUB, "VQSUB", "1111001U0Dzznnnndddd001
//INST(asimd_VABD, "VABD/VABDL", "1111001U0-CC--------0111---0----") // ASIMD
//INST(asimd_VABA, "VABA/ABAL", "1111001U0-CC--------0111---1----") // ASIMD
INST(asimd_VADD_int, "VADD (integer)", "111100100Dzznnnndddd1000NQM0mmmm") // ASIMD
//INST(asimd_VSUB_int, "VSUB (integer)", "111100110-CC--------1000---0----") // ASIMD
INST(asimd_VSUB_int, "VSUB (integer)", "111100110Dzznnnndddd1000NQM0mmmm") // ASIMD
INST(asimd_VTST, "VTST", "111100100Dzznnnndddd1000NQM1mmmm") // ASIMD
//INST(asimd_VCEQ_reg, "VCEG (register)", "111100110-CC--------1000---1----") // ASIMD
//INST(asimd_VMLA, "VMLA/VMLAL/VMLS/VMLSL", "1111001U0-CC--------1001---0----") // ASIMD

18
src/frontend/A32/translate/impl/asimd_three_same.cpp
View file

@ -212,6 +212,24 @@ bool ArmTranslatorVisitor::asimd_VADD_int(bool D, size_t sz, size_t Vn, size_t V
return true;
}
bool ArmTranslatorVisitor::asimd_VSUB_int(bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm) {
if (Q && (Common::Bit<0>(Vd) || Common::Bit<0>(Vn) || Common::Bit<0>(Vm))) {
return UndefinedInstruction();
}
const size_t esize = 8U << sz;
const auto d = ToVector(Q, Vd, D);
const auto m = ToVector(Q, Vm, M);
const auto n = ToVector(Q, Vn, N);
const auto reg_m = ir.GetVector(m);
const auto reg_n = ir.GetVector(n);
const auto result = ir.VectorSub(esize, reg_n, reg_m);
ir.SetVector(d, result);
return true;
}
bool ArmTranslatorVisitor::asimd_VTST(bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm) {
if (Q && (Common::Bit<0>(Vd) || Common::Bit<0>(Vn) || Common::Bit<0>(Vm))) {
return UndefinedInstruction();

1
src/frontend/A32/translate/impl/translate_arm.h
View file

@ -451,6 +451,7 @@ struct ArmTranslatorVisitor final {
bool asimd_VHSUB(bool U, bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VQSUB(bool U, bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VADD_int(bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VSUB_int(bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VTST(bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
// Two registers and a shift amount