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Immediate addressing sized based on register used

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scawful
2023-12-05 03:46:08 -05:00
parent 6931ed4500
commit c2dba25b91
1 changed files with 3 additions and 2 deletions
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5
src/app/emu/cpu/addressing.cc
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@@ -98,8 +98,9 @@ uint32_t CPU::DirectPageIndirectLongIndexedY() {
return effective_address; return effective_address;
} }
uint16_t CPU::Immediate() { uint16_t CPU::Immediate(bool index_size) {
if (GetAccumulatorSize()) { bool bit_mode = index_size ? GetIndexSize() : GetAccumulatorSize();
if (bit_mode) {
return memory.ReadByte((PB << 16) | PC + 1); return memory.ReadByte((PB << 16) | PC + 1);
} else { } else {
return memory.ReadWord((PB << 16) | PC + 1); return memory.ReadWord((PB << 16) | PC + 1);