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A32: Implement ASIMD VTRN

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This commit is contained in:
MerryMage 2020-06-21 11:44:27 +01:00
parent a8b481ab63
commit 603cd09c8f
3 changed files with 29 additions and 1 deletions
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2
src/frontend/A32/decoder/asimd.inc
View file

@ -99,7 +99,7 @@ INST(asimd_VCLT_zero, "VCLT (zero)", "111100111D11zz01dddd0F1
INST(asimd_VABS, "VABS", "111100111D11zz01dddd0F110QM0mmmm") // ASIMD
INST(asimd_VNEG, "VNEG", "111100111D11zz01dddd0F111QM0mmmm") // ASIMD
INST(asimd_VSWP, "VSWP", "111100111D110010dddd00000QM0mmmm") // ASIMD
//INST(asimd_VTRN, "VTRN", "111100111-11--10----00001x-0----") // ASIMD
INST(asimd_VTRN, "VTRN", "111100111D11zz10dddd00001QM0mmmm") // ASIMD
//INST(asimd_VUZP, "VUZP", "111100111-11--10----00010x-0----") // ASIMD
//INST(asimd_VZIP, "VZIP", "111100111-11--10----00011x-0----") // ASIMD
//INST(asimd_VMOVN, "VMOVN", "111100111-11--10----001000-0----") // ASIMD

27
src/frontend/A32/translate/impl/asimd_two_regs_misc.cpp
View file

@ -397,6 +397,33 @@ bool ArmTranslatorVisitor::asimd_VSWP(bool D, size_t Vd, bool Q, bool M, size_t
return true;
}
bool ArmTranslatorVisitor::asimd_VTRN(bool D, size_t sz, size_t Vd, bool Q, bool M, size_t Vm) {
if (sz == 0b11) {
return UndefinedInstruction();
}
if (Q && (Common::Bit<0>(Vd) || 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);
if (d == m) {
return UnpredictableInstruction();
}
const auto reg_d = ir.GetVector(d);
const auto reg_m = ir.GetVector(m);
const auto result_d = ir.VectorTranspose(esize, reg_d, reg_m, false);
const auto result_m = ir.VectorTranspose(esize, reg_d, reg_m, true);
ir.SetVector(d, result_d);
ir.SetVector(m, result_m);
return true;
}
bool ArmTranslatorVisitor::asimd_VRECPE(bool D, size_t sz, size_t Vd, bool F, bool Q, bool M, size_t Vm) {
if (Q && (Common::Bit<0>(Vd) || Common::Bit<0>(Vm))) {
return UndefinedInstruction();

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

@ -527,6 +527,7 @@ struct ArmTranslatorVisitor final {
bool asimd_VABS(bool D, size_t sz, size_t Vd, bool F, bool Q, bool M, size_t Vm);
bool asimd_VNEG(bool D, size_t sz, size_t Vd, bool F, bool Q, bool M, size_t Vm);
bool asimd_VSWP(bool D, size_t Vd, bool Q, bool M, size_t Vm);
bool asimd_VTRN(bool D, size_t sz, size_t Vd, bool Q, bool M, size_t Vm);
bool asimd_VRECPE(bool D, size_t sz, size_t Vd, bool F, bool Q, bool M, size_t Vm);
bool asimd_VRSQRTE(bool D, size_t sz, size_t Vd, bool F, bool Q, bool M, size_t Vm);