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A32: Implement VCVT{A,N,P,M} (ASIMD)

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This commit is contained in:
Merry 2024-01-28 11:21:08 +00:00
parent c9fcb695a4
commit 05f38d1989
3 changed files with 45 additions and 4 deletions
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8
src/dynarmic/frontend/A32/decoder/asimd.inc
View file

@ -133,10 +133,10 @@ INST(v8_VRINTM, "VRINTM", "111100111D11zz10dddd011
INST(v8_VRINTP, "VRINTP", "111100111D11zz10dddd01111QM0mmmm") // v8
INST(asimd_VCVT_half, "VCVT (half-precision)", "111100111D11zz10dddd011o00M0mmmm") // ASIMD
INST(arm_UDF, "UNALLOCATED", "111100111-11--10----011-01-0----") // ASIMD
INST(arm_UDF, "UNALLOCATED (VCVTA)", "111100111-11--11----0000---0----")
INST(arm_UDF, "UNALLOCATED (VCVTN)", "111100111-11--11----0001---0----")
INST(arm_UDF, "UNALLOCATED (VCVTP)", "111100111-11--11----0010---0----")
INST(arm_UDF, "UNALLOCATED (VCVTM)", "111100111-11--11----0011---0----")
INST(v8_VCVTA, "VCVTA", "111100111D11zz11dddd0000oQM0mmmm") // v8
INST(v8_VCVTN, "VCVTN", "111100111D11zz11dddd0001oQM0mmmm") // v8
INST(v8_VCVTP, "VCVTP", "111100111D11zz11dddd0010oQM0mmmm") // v8
INST(v8_VCVTM, "VCVTM", "111100111D11zz11dddd0011oQM0mmmm") // v8
INST(asimd_VRECPE, "VRECPE", "111100111D11zz11dddd010F0QM0mmmm") // ASIMD
INST(asimd_VRSQRTE, "VRSQRTE", "111100111D11zz11dddd010F1QM0mmmm") // ASIMD
INST(asimd_VCVT_integer, "VCVT (integer)", "111100111D11zz11dddd011oUQM0mmmm") // ASIMD

4
src/dynarmic/frontend/A32/translate/impl/a32_translate_impl.h
View file

@ -957,6 +957,10 @@ struct TranslatorVisitor final {
bool v8_VRINTM(bool D, size_t sz, size_t Vd, bool Q, bool M, size_t Vm);
bool v8_VRINTP(bool D, size_t sz, size_t Vd, bool Q, bool M, size_t Vm);
bool asimd_VCVT_half(bool D, size_t sz, size_t Vd, bool op, bool M, size_t Vm);
bool v8_VCVTA(bool D, size_t sz, size_t Vd, bool op, bool Q, bool M, size_t Vm);
bool v8_VCVTN(bool D, size_t sz, size_t Vd, bool op, bool Q, bool M, size_t Vm);
bool v8_VCVTP(bool D, size_t sz, size_t Vd, bool op, bool Q, bool M, size_t Vm);
bool v8_VCVTM(bool D, size_t sz, size_t Vd, bool op, 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);
bool asimd_VCVT_integer(bool D, size_t sz, size_t Vd, bool op, bool U, bool Q, bool M, size_t Vm);

37
src/dynarmic/frontend/A32/translate/impl/asimd_two_regs_misc.cpp
View file

@ -123,6 +123,30 @@ bool RoundFloatToInteger(TranslatorVisitor& v, bool D, size_t sz, size_t Vd, boo
return true;
}
bool ConvertFloatToInteger(TranslatorVisitor& v, bool D, size_t sz, size_t Vd, bool op, bool Q, bool M, size_t Vm, FP::RoundingMode rounding_mode) {
if (Q && (mcl::bit::get_bit<0>(Vd) || mcl::bit::get_bit<0>(Vm))) {
return v.UndefinedInstruction();
}
if (sz != 0b10) {
return v.UndefinedInstruction(); // TODO: FP16
}
const bool unsigned_ = op;
const size_t esize = 8 << sz;
const auto d = ToVector(Q, Vd, D);
const auto m = ToVector(Q, Vm, M);
const auto reg_m = v.ir.GetVector(m);
const auto result = unsigned_
? v.ir.FPVectorToUnsignedFixed(esize, reg_m, 0, rounding_mode, false)
: v.ir.FPVectorToSignedFixed(esize, reg_m, 0, rounding_mode, false);
v.ir.SetVector(d, result);
return true;
}
} // Anonymous namespace
bool TranslatorVisitor::asimd_VREV(bool D, size_t sz, size_t Vd, size_t op, bool Q, bool M, size_t Vm) {
@ -653,6 +677,19 @@ bool TranslatorVisitor::asimd_VCVT_half(bool D, size_t sz, size_t Vd, bool half_
return true;
}
bool TranslatorVisitor::v8_VCVTA(bool D, size_t sz, size_t Vd, bool op, bool Q, bool M, size_t Vm) {
return ConvertFloatToInteger(*this, D, sz, Vd, op, Q, M, Vm, FP::RoundingMode::ToNearest_TieAwayFromZero);
}
bool TranslatorVisitor::v8_VCVTN(bool D, size_t sz, size_t Vd, bool op, bool Q, bool M, size_t Vm) {
return ConvertFloatToInteger(*this, D, sz, Vd, op, Q, M, Vm, FP::RoundingMode::ToNearest_TieEven);
}
bool TranslatorVisitor::v8_VCVTP(bool D, size_t sz, size_t Vd, bool op, bool Q, bool M, size_t Vm) {
return ConvertFloatToInteger(*this, D, sz, Vd, op, Q, M, Vm, FP::RoundingMode::TowardsPlusInfinity);
}
bool TranslatorVisitor::v8_VCVTM(bool D, size_t sz, size_t Vd, bool op, bool Q, bool M, size_t Vm) {
return ConvertFloatToInteger(*this, D, sz, Vd, op, Q, M, Vm, FP::RoundingMode::TowardsMinusInfinity);
}
bool TranslatorVisitor::asimd_VRECPE(bool D, size_t sz, size_t Vd, bool F, bool Q, bool M, size_t Vm) {
if (Q && (mcl::bit::get_bit<0>(Vd) || mcl::bit::get_bit<0>(Vm))) {
return UndefinedInstruction();