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A32: Implement ASIMD VBIC (register)

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Lioncash 2020-05-16 12:40:12 -04:00 committed by merry
parent 0441ab81a1
commit 64fa804dd4
3 changed files with 22 additions and 1 deletions
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2
src/frontend/A32/decoder/asimd.inc
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@ -3,7 +3,7 @@
//INST(asimd_VQADD, "VQADD", "1111001U0-CC--------0000---1----") // ASIMD
//INST(asimd_VRHADD, "VRHADD", "1111001U0-CC--------0001---0----") // ASIMD
INST(asimd_VAND_reg, "VAND (register)", "111100100D00nnnndddd0001NQM1mmmm") // ASIMD
//INST(asimd_VBIC_reg, "VBIC (register)", "111100100-01--------0001---1----") // ASIMD
INST(asimd_VBIC_reg, "VBIC (register)", "111100100D01nnnndddd0001NQM1mmmm") // ASIMD
//INST(asimd_VORR_reg, "VORR (register)", "111100100-10--------0001---1----") // ASIMD
//INST(asimd_VORN_reg, "VORN (register)", "111100100-11--------0001---1----") // ASIMD
//INST(asimd_VEOR_reg, "VEOR (register)", "111100110-00--------0001---1----") // ASIMD

20
src/frontend/A32/translate/impl/asimd_three_same.cpp
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@ -32,4 +32,24 @@ bool ArmTranslatorVisitor::asimd_VAND_reg(bool D, size_t Vn, size_t Vd, bool N,
return true;
}
bool ArmTranslatorVisitor::asimd_VBIC_reg(bool D, 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 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_m = ir.GetExtendedRegister(m + i);
const IR::U32U64 reg_n = ir.GetExtendedRegister(n + i);
const IR::U32U64 result = ir.And(reg_n, ir.Not(reg_m));
ir.SetExtendedRegister(d + i, result);
}
return true;
}
} // namespace Dynarmic::A32

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

@ -431,6 +431,7 @@ struct ArmTranslatorVisitor final {
// Advanced SIMD three register variants
bool asimd_VAND_reg(bool D, size_t Vn, size_t Vd, bool N, bool Q, bool M, size_t Vm);
bool asimd_VBIC_reg(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);