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A32: Implement ASIMD VRSHL

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Lioncash 2020-06-19 13:46:19 -04:00 committed by merry
parent 682621ef1a
commit 794440cf8d
3 changed files with 21 additions and 1 deletions
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2
src/frontend/A32/decoder/asimd.inc
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@ -16,7 +16,7 @@ INST(asimd_VQSUB, "VQSUB", "1111001U0Dzznnnndddd001
//INST(asimd_VCGE_reg, "VCGE (register)", "1111001U0-CC--------0011---1----") // ASIMD
INST(asimd_VSHL_reg, "VSHL (register)", "1111001U0Dzznnnndddd0100NQM0mmmm") // ASIMD
INST(asimd_VQSHL_reg, "VQSHL (register)", "1111001U0Dzznnnndddd0100NQM1mmmm") // ASIMD
//INST(asimd_VRSHL, "VRSHL", "1111001U0-CC--------0101---0----") // ASIMD
INST(asimd_VRSHL, "VRSHL", "1111001U0Dzznnnndddd0101NQM0mmmm") // ASIMD
//INST(asimd_VQRSHL, "VQRSHL", "1111001U0-CC--------0101---1----") // ASIMD
//INST(asimd_VMAX, "VMAX/VMIN", "1111001U0-CC--------0110---B----") // ASIMD
//INST(asimd_VABD, "VABD/VABDL", "1111001U0-CC--------0111---0----") // ASIMD

19
src/frontend/A32/translate/impl/asimd_three_same.cpp
View file

@ -268,6 +268,25 @@ bool ArmTranslatorVisitor::asimd_VQSHL_reg(bool U, bool D, size_t sz, size_t Vn,
return true;
}
bool ArmTranslatorVisitor::asimd_VRSHL(bool U, 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 = U ? ir.VectorRoundingShiftLeftUnsigned(esize, reg_m, reg_n)
: ir.VectorRoundingShiftLeftSigned(esize, reg_m, reg_n);
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

@ -459,6 +459,7 @@ struct ArmTranslatorVisitor final {
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_VSHL_reg(bool U, bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VQSHL_reg(bool U, bool D, size_t sz, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VRSHL(bool U, 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