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Fix ADD and ADC sign flags.

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This commit is contained in:
Thomas Harte 2023-10-08 13:39:46 -04:00
parent a4b1d2b00a
commit dd3cc1f510
1 changed files with 4 additions and 2 deletions
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6
InstructionSets/x86/Implementation/PerformImplementation.hpp
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@ -174,7 +174,8 @@ void adc(IntT &destination, IntT source, Status &status) {
status.carry = Numeric::carried_out<bit_size<IntT>() - 1>(destination, source, result); status.carry = Numeric::carried_out<bit_size<IntT>() - 1>(destination, source, result);
status.auxiliary_carry = Numeric::carried_in<4>(destination, source, result); status.auxiliary_carry = Numeric::carried_in<4>(destination, source, result);
status.sign = status.zero = status.parity = result; status.sign = result & top_bit<IntT>();
status.zero = status.parity = result;
status.overflow = overflow<true, IntT>(destination, source, result); status.overflow = overflow<true, IntT>(destination, source, result);
destination = result; destination = result;
@ -192,7 +193,8 @@ void add(IntT &destination, IntT source, Status &status) {
status.carry = Numeric::carried_out<bit_size<IntT>() - 1>(destination, source, result); status.carry = Numeric::carried_out<bit_size<IntT>() - 1>(destination, source, result);
status.auxiliary_carry = Numeric::carried_in<4>(destination, source, result); status.auxiliary_carry = Numeric::carried_in<4>(destination, source, result);
status.sign = status.zero = status.parity = result; status.sign = result & top_bit<IntT>();
status.zero = status.parity = result;
status.overflow = overflow<true, IntT>(destination, source, result); status.overflow = overflow<true, IntT>(destination, source, result);
destination = result; destination = result;