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A32: Implement ASIMD VBSL (register)

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This commit is contained in:
Lioncash
2020-05-16 13:24:18 -04:00
committed by merry
parent 66663cf8e7
commit d624059ead
3 changed files with 29 additions and 1 deletions
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27
src/frontend/A32/translate/impl/asimd_three_same.cpp
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@@ -33,6 +33,28 @@ bool BitwiseInstruction(ArmTranslatorVisitor& v, bool D, size_t Vn, size_t Vd, b
return true;
}
template <typename Callable>
bool BitwiseInstructionWithDst(ArmTranslatorVisitor& v, bool D, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm, Callable fn) {
if (Q && (Common::Bit<0>(Vd) || Common::Bit<0>(Vn) || Common::Bit<0>(Vm))) {
return v.UndefinedInstruction();
}
const auto d = ToExtReg(Vd, D);
const auto m = ToExtReg(Vm, M);
const auto n = ToExtReg(Vn, N);
const size_t regs = Q ? 2 : 1;
for (size_t i = 0; i < regs; i++) {
const IR::U32U64 reg_d = v.ir.GetExtendedRegister(d + i);
const IR::U32U64 reg_m = v.ir.GetExtendedRegister(m + i);
const IR::U32U64 reg_n = v.ir.GetExtendedRegister(n + i);
const IR::U32U64 result = fn(reg_d, reg_n, reg_m);
v.ir.SetExtendedRegister(d + i, result);
}
return true;
}
} // Anonymous namespace
bool ArmTranslatorVisitor::asimd_VAND_reg(bool D, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm) {
@@ -65,4 +87,9 @@ bool ArmTranslatorVisitor::asimd_VEOR_reg(bool D, size_t Vn, size_t Vd, bool N,
});
}
bool ArmTranslatorVisitor::asimd_VBSL(bool D, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm) {
return BitwiseInstructionWithDst(*this, D, Vn, Vd, N, Q, M, Vm, [this](const auto& reg_d, const auto& reg_n, const auto& reg_m) {
return ir.Or(ir.And(reg_n, reg_d), ir.And(reg_m, ir.Not(reg_d)));
});
}
} // namespace Dynarmic::A32

1
src/frontend/A32/translate/impl/translate_arm.h
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@@ -435,6 +435,7 @@ struct ArmTranslatorVisitor final {
bool asimd_VORR_reg(bool D, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VORN_reg(bool D, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VEOR_reg(bool D, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VBSL(bool D, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
// Advanced SIMD load/store structures
bool v8_VLD_multiple(bool D, Reg n, size_t Vd, Imm<4> type, size_t sz, size_t align, Reg m);