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CMP doesn't write.

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This commit is contained in:
Thomas Harte 2023-10-31 22:42:39 -04:00
parent 2432396eaa
commit 430c60111e
1 changed files with 2 additions and 1 deletions
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InstructionSets/x86/Implementation/PerformImplementation.hpp
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@ -862,6 +862,7 @@ void call_far(InstructionT &instruction,
const Source source_segment = instruction.data_segment();
// TODO: preauthorise reads.
const uint16_t offset = memory.template access<uint16_t, AccessType::Read>(source_segment, source_address);
source_address += 2;
const uint16_t segment = memory.template access<uint16_t, AccessType::Read>(source_segment, source_address);
@ -1672,7 +1673,7 @@ template <
case Operation::ADD: Primitive::add<false>(destination_rmw(), source_r(), status); break;
case Operation::SBB: Primitive::sub<true, true>(destination_rmw(), source_r(), status); break;
case Operation::SUB: Primitive::sub<false, true>(destination_rmw(), source_r(), status); break;
case Operation::CMP: Primitive::sub<false, false>(destination_rmw(), source_r(), status); return;
case Operation::CMP: Primitive::sub<false, false>(destination_r(), source_r(), status); return;
case Operation::TEST: Primitive::test(destination_r(), source_r(), status); return;
case Operation::MUL: Primitive::mul(pair_high(), pair_low(), source_r(), status); return;