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A32: Implement ASIMD VSHL (register)

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Lioncash 2020-06-19 13:35:00 -04:00 committed by merry
parent ad96b2b18d
commit e46fb98cc5
3 changed files with 21 additions and 1 deletions
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2
src/frontend/A32/decoder/asimd.inc
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@ -14,7 +14,7 @@ INST(asimd_VHSUB, "VHSUB", "1111001U0Dzznnnndddd001
INST(asimd_VQSUB, "VQSUB", "1111001U0Dzznnnndddd0010NQM1mmmm") // ASIMD
//INST(asimd_VCGT_reg, "VCGT (register)", "1111001U0-CC--------0011---0----") // ASIMD
//INST(asimd_VCGE_reg, "VCGE (register)", "1111001U0-CC--------0011---1----") // ASIMD
//INST(asimd_VSHL_reg, "VSHL (register)", "1111001U0-CC--------0100---0----") // ASIMD
INST(asimd_VSHL_reg, "VSHL (register)", "1111001U0Dzznnnndddd0100NQM0mmmm") // ASIMD
//INST(asimd_VQSHL_reg, "VQSHL (register)", "1111001U0-CC--------0100---1----") // ASIMD
//INST(asimd_VRSHL, "VRSHL", "1111001U0-CC--------0101---0----") // ASIMD
//INST(asimd_VQRSHL, "VQRSHL", "1111001U0-CC--------0101---1----") // ASIMD

19
src/frontend/A32/translate/impl/asimd_three_same.cpp
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@ -230,6 +230,25 @@ bool ArmTranslatorVisitor::asimd_VSUB_int(bool D, size_t sz, size_t Vn, size_t V
return true;
}
bool ArmTranslatorVisitor::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) {
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.VectorLogicalVShift(esize, reg_m, reg_n)
: ir.VectorArithmeticVShift(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

@ -457,6 +457,7 @@ struct ArmTranslatorVisitor final {
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_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_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