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fp/op/FPRoundInt: Add half-precision specialization of FPRoundInt

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Lioncash 2019-04-13 17:37:45 -04:00 committed by MerryMage
parent cb9a1b18b6
commit 61cec94a19
1 changed files with 4 additions and 3 deletions
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7
src/common/fp/op/FPRoundInt.cpp
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@ -31,11 +31,11 @@ u64 FPRoundInt(FPT op, FPCR fpcr, RoundingMode rounding, bool exact, FPSR& fpsr)
} }
if (type == FPType::Infinity) { if (type == FPType::Infinity) {
return FPInfo<FPT>::Infinity(sign); return FPT(FPInfo<FPT>::Infinity(sign));
} }
if (type == FPType::Zero) { if (type == FPType::Zero) {
return FPInfo<FPT>::Zero(sign); return FPT(FPInfo<FPT>::Zero(sign));
} }
// Reshift decimal point back to bit zero. // Reshift decimal point back to bit zero.
@ -79,7 +79,7 @@ u64 FPRoundInt(FPT op, FPCR fpcr, RoundingMode rounding, bool exact, FPSR& fpsr)
const u64 abs_int_result = new_sign ? Safe::Negate<u64>(int_result) : static_cast<u64>(int_result); const u64 abs_int_result = new_sign ? Safe::Negate<u64>(int_result) : static_cast<u64>(int_result);
const FPT result = int_result == 0 const FPT result = int_result == 0
? FPInfo<FPT>::Zero(sign) ? FPT(FPInfo<FPT>::Zero(sign))
: FPRound<FPT>(FPUnpacked{new_sign, normalized_point_position, abs_int_result}, fpcr, RoundingMode::TowardsZero, fpsr); : FPRound<FPT>(FPUnpacked{new_sign, normalized_point_position, abs_int_result}, fpcr, RoundingMode::TowardsZero, fpsr);
if (error != ResidualError::Zero && exact) { if (error != ResidualError::Zero && exact) {
@ -89,6 +89,7 @@ u64 FPRoundInt(FPT op, FPCR fpcr, RoundingMode rounding, bool exact, FPSR& fpsr)
return result; return result;
} }
template u64 FPRoundInt<u16>(u16 op, FPCR fpcr, RoundingMode rounding, bool exact, FPSR& fpsr);
template u64 FPRoundInt<u32>(u32 op, FPCR fpcr, RoundingMode rounding, bool exact, FPSR& fpsr); template u64 FPRoundInt<u32>(u32 op, FPCR fpcr, RoundingMode rounding, bool exact, FPSR& fpsr);
template u64 FPRoundInt<u64>(u64 op, FPCR fpcr, RoundingMode rounding, bool exact, FPSR& fpsr); template u64 FPRoundInt<u64>(u64 op, FPCR fpcr, RoundingMode rounding, bool exact, FPSR& fpsr);