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Merge pull request #1163 from TomHarte/AbsoluteNOPs

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Fix abs,x NOP length.
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Thomas Harte 2023-09-01 16:38:54 -04:00 committed by GitHub
commit 4f0adc4d5d
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1 changed files with 12 additions and 15 deletions
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27
Processors/6502/Implementation/6502Storage.cpp
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@ -17,15 +17,15 @@ using namespace CPU::MOS6502;
#define Absolute CycleLoadAddressAbsolute
#define AbsoluteXr CycleLoadAddressAbsolute, CycleAddXToAddressLow, OperationCorrectAddressHigh
#define AbsoluteYr CycleLoadAddressAbsolute, CycleAddYToAddressLow, OperationCorrectAddressHigh
#define AbsoluteX CycleLoadAddressAbsolute, CycleAddXToAddressLowRead, OperationCorrectAddressHigh
#define AbsoluteY CycleLoadAddressAbsolute, CycleAddYToAddressLowRead, OperationCorrectAddressHigh
#define AbsoluteXw CycleLoadAddressAbsolute, CycleAddXToAddressLowRead, OperationCorrectAddressHigh
#define AbsoluteYw CycleLoadAddressAbsolute, CycleAddYToAddressLowRead, OperationCorrectAddressHigh
#define Zero OperationLoadAddressZeroPage
#define ZeroX CycleLoadAddessZeroX
#define ZeroY CycleLoadAddessZeroY
#define ZeroIndirect OperationLoadAddressZeroPage, CycleFetchAddressLowFromOperand, CycleIncrementOperandFetchAddressHigh
#define IndexedIndirect CycleIncrementPCFetchAddressLowFromOperand, CycleAddXToOperandFetchAddressLow, CycleIncrementOperandFetchAddressHigh
#define IndirectIndexedr CycleIncrementPCFetchAddressLowFromOperand, CycleIncrementOperandFetchAddressHigh, CycleAddYToAddressLow, OperationCorrectAddressHigh
#define IndirectIndexed CycleIncrementPCFetchAddressLowFromOperand, CycleIncrementOperandFetchAddressHigh, CycleAddYToAddressLowRead, OperationCorrectAddressHigh
#define IndirectIndexedw CycleIncrementPCFetchAddressLowFromOperand, CycleIncrementOperandFetchAddressHigh, CycleAddYToAddressLowRead, OperationCorrectAddressHigh
#define Read(...) CycleFetchOperandFromAddress, __VA_ARGS__
#define Write(...) __VA_ARGS__, CycleWriteOperandToAddress
@ -42,23 +42,23 @@ using namespace CPU::MOS6502;
#define IndirectIndexedRead(op) Program(IndirectIndexedr, Read(op))
#define AbsoluteWrite(op) Program(Absolute, Write(op))
#define AbsoluteXWrite(op) Program(AbsoluteX, Write(op))
#define AbsoluteYWrite(op) Program(AbsoluteY, Write(op))
#define AbsoluteXWrite(op) Program(AbsoluteXw, Write(op))
#define AbsoluteYWrite(op) Program(AbsoluteYw, Write(op))
#define ZeroWrite(op) Program(Zero, Write(op))
#define ZeroXWrite(op) Program(ZeroX, Write(op))
#define ZeroYWrite(op) Program(ZeroY, Write(op))
#define ZeroIndirectWrite(op) Program(ZeroIndirect, Write(op))
#define IndexedIndirectWrite(op) Program(IndexedIndirect, Write(op))
#define IndirectIndexedWrite(op) Program(IndirectIndexed, Write(op))
#define IndirectIndexedWrite(op) Program(IndirectIndexedw, Write(op))
#define AbsoluteReadModifyWrite(...) Program(Absolute, ReadModifyWrite(__VA_ARGS__))
#define AbsoluteXReadModifyWrite(...) Program(AbsoluteX, ReadModifyWrite(__VA_ARGS__))
#define AbsoluteYReadModifyWrite(...) Program(AbsoluteY, ReadModifyWrite(__VA_ARGS__))
#define AbsoluteXReadModifyWrite(...) Program(AbsoluteXw, ReadModifyWrite(__VA_ARGS__))
#define AbsoluteYReadModifyWrite(...) Program(AbsoluteYw, ReadModifyWrite(__VA_ARGS__))
#define ZeroReadModifyWrite(...) Program(Zero, ReadModifyWrite(__VA_ARGS__))
#define ZeroXReadModifyWrite(...) Program(ZeroX, ReadModifyWrite(__VA_ARGS__))
#define ZeroYReadModifyWrite(...) Program(ZeroY, ReadModifyWrite(__VA_ARGS__))
#define IndexedIndirectReadModifyWrite(...) Program(IndexedIndirect, ReadModifyWrite(__VA_ARGS__))
#define IndirectIndexedReadModifyWrite(...) Program(IndirectIndexed, ReadModifyWrite(__VA_ARGS__))
#define IndirectIndexedReadModifyWrite(...) Program(IndirectIndexedw, ReadModifyWrite(__VA_ARGS__))
#define FastAbsoluteXReadModifyWrite(...) Program(AbsoluteXr, ReadModifyWrite(__VA_ARGS__))
#define FastAbsoluteYReadModifyWrite(...) Program(AbsoluteYr, ReadModifyWrite(__VA_ARGS__))
@ -69,13 +69,10 @@ using namespace CPU::MOS6502;
#define ZeroNop() Program(Zero, CycleFetchOperandFromAddress)
#define ZeroXNop() Program(ZeroX, CycleFetchOperandFromAddress)
#define AbsoluteNop() Program(Absolute, CycleFetchOperandFromAddress)
#define AbsoluteXNop() Program(AbsoluteX, CycleFetchOperandFromAddress)
#define AbsoluteXNop() Program(AbsoluteXr, CycleFetchOperandFromAddress)
#define ImpliedNop() {OperationMoveToNextProgram}
#define ImmediateNop() Program(OperationIncrementPC)
#define AbsoluteNopNoFetch() Program(Absolute)
#define AbsoluteXNopNoFetch() Program(AbsoluteX)
#define JAM {CycleFetchOperand, OperationScheduleJam}
ProcessorStorage::ProcessorStorage(Personality personality) {
@ -428,10 +425,10 @@ ProcessorStorage::ProcessorStorage(Personality personality) {
}
} else {
for(int location = 0x0f; location <= 0xef; location += 0x20) {
Install(location, AbsoluteNopNoFetch());
Install(location, AbsoluteNop());
}
for(int location = 0x1f; location <= 0xff; location += 0x20) {
Install(location, AbsoluteXNopNoFetch());
Install(location, AbsoluteXNop());
}
for(int c = 0x07; c <= 0xe7; c += 0x20) {
Install(c, ZeroNop());