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A32: Implement VFPv3 VCT (between floating-point and fixed-point)

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This commit is contained in:
MerryMage
2020-06-22 21:03:20 +01:00
parent 48b2ffdde9
commit 3ea49fc6d6
9 changed files with 322 additions and 54 deletions
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60
src/frontend/ir/ir_emitter.cpp
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@@ -2150,6 +2150,24 @@ U16 IREmitter::FPSingleToHalf(const U32& a, FP::RoundingMode rounding) {
return Inst<U16>(Opcode::FPSingleToHalf, a, Imm8(static_cast<u8>(rounding)));
}
U16 IREmitter::FPToFixedS16(const U16U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 16);
const U8 fbits_imm = Imm8(static_cast<u8>(fbits));
const U8 rounding_imm = Imm8(static_cast<u8>(rounding));
switch (a.GetType()) {
case Type::U16:
return Inst<U16>(Opcode::FPHalfToFixedS16, a, fbits_imm, rounding_imm);
case Type::U32:
return Inst<U16>(Opcode::FPSingleToFixedS16, a, fbits_imm, rounding_imm);
case Type::U64:
return Inst<U16>(Opcode::FPDoubleToFixedS16, a, fbits_imm, rounding_imm);
default:
UNREACHABLE();
}
}
U32 IREmitter::FPToFixedS32(const U16U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 32);
@@ -2186,6 +2204,24 @@ U64 IREmitter::FPToFixedS64(const U16U32U64& a, size_t fbits, FP::RoundingMode r
}
}
U16 IREmitter::FPToFixedU16(const U16U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 16);
const U8 fbits_imm = Imm8(static_cast<u8>(fbits));
const U8 rounding_imm = Imm8(static_cast<u8>(rounding));
switch (a.GetType()) {
case Type::U16:
return Inst<U16>(Opcode::FPHalfToFixedU16, a, fbits_imm, rounding_imm);
case Type::U32:
return Inst<U16>(Opcode::FPSingleToFixedU16, a, fbits_imm, rounding_imm);
case Type::U64:
return Inst<U16>(Opcode::FPDoubleToFixedU16, a, fbits_imm, rounding_imm);
default:
UNREACHABLE();
}
}
U32 IREmitter::FPToFixedU32(const U16U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= 32);
@@ -2222,13 +2258,15 @@ U64 IREmitter::FPToFixedU64(const U16U32U64& a, size_t fbits, FP::RoundingMode r
}
}
U32 IREmitter::FPSignedFixedToSingle(const U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= (a.GetType() == Type::U32 ? 32 : 64));
U32 IREmitter::FPSignedFixedToSingle(const U16U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= (a.GetType() == Type::U16 ? 16 : (a.GetType() == Type::U32 ? 32 : 64)));
const IR::U8 fbits_imm = Imm8(static_cast<u8>(fbits));
const IR::U8 rounding_imm = Imm8(static_cast<u8>(rounding));
switch (a.GetType()) {
case Type::U16:
return Inst<U32>(Opcode::FPFixedS16ToSingle, a, fbits_imm, rounding_imm);
case Type::U32:
return Inst<U32>(Opcode::FPFixedS32ToSingle, a, fbits_imm, rounding_imm);
case Type::U64:
@@ -2238,13 +2276,15 @@ U32 IREmitter::FPSignedFixedToSingle(const U32U64& a, size_t fbits, FP::Rounding
}
}
U32 IREmitter::FPUnsignedFixedToSingle(const U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= (a.GetType() == Type::U32 ? 32 : 64));
U32 IREmitter::FPUnsignedFixedToSingle(const U16U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= (a.GetType() == Type::U16 ? 16 : (a.GetType() == Type::U32 ? 32 : 64)));
const IR::U8 fbits_imm = Imm8(static_cast<u8>(fbits));
const IR::U8 rounding_imm = Imm8(static_cast<u8>(rounding));
switch (a.GetType()) {
case Type::U16:
return Inst<U32>(Opcode::FPFixedU16ToSingle, a, fbits_imm, rounding_imm);
case Type::U32:
return Inst<U32>(Opcode::FPFixedU32ToSingle, a, fbits_imm, rounding_imm);
case Type::U64:
@@ -2254,13 +2294,15 @@ U32 IREmitter::FPUnsignedFixedToSingle(const U32U64& a, size_t fbits, FP::Roundi
}
}
U64 IREmitter::FPSignedFixedToDouble(const U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= (a.GetType() == Type::U32 ? 32 : 64));
U64 IREmitter::FPSignedFixedToDouble(const U16U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= (a.GetType() == Type::U16 ? 16 : (a.GetType() == Type::U32 ? 32 : 64)));
const IR::U8 fbits_imm = Imm8(static_cast<u8>(fbits));
const IR::U8 rounding_imm = Imm8(static_cast<u8>(rounding));
switch (a.GetType()) {
case Type::U16:
return Inst<U64>(Opcode::FPFixedS16ToDouble, a, fbits_imm, rounding_imm);
case Type::U32:
return Inst<U64>(Opcode::FPFixedS32ToDouble, a, fbits_imm, rounding_imm);
case Type::U64:
@@ -2270,13 +2312,15 @@ U64 IREmitter::FPSignedFixedToDouble(const U32U64& a, size_t fbits, FP::Rounding
}
}
U64 IREmitter::FPUnsignedFixedToDouble(const U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= (a.GetType() == Type::U32 ? 32 : 64));
U64 IREmitter::FPUnsignedFixedToDouble(const U16U32U64& a, size_t fbits, FP::RoundingMode rounding) {
ASSERT(fbits <= (a.GetType() == Type::U16 ? 16 : (a.GetType() == Type::U32 ? 32 : 64)));
const IR::U8 fbits_imm = Imm8(static_cast<u8>(fbits));
const IR::U8 rounding_imm = Imm8(static_cast<u8>(rounding));
switch (a.GetType()) {
case Type::U16:
return Inst<U64>(Opcode::FPFixedU16ToDouble, a, fbits_imm, rounding_imm);
case Type::U32:
return Inst<U64>(Opcode::FPFixedU32ToDouble, a, fbits_imm, rounding_imm);
case Type::U64: