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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
#pragma once
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struct regsrec
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{
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BYTE a; // accumulator
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BYTE x; // index X
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BYTE y; // index Y
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BYTE ps; // processor status
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WORD pc; // program counter
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WORD sp; // stack pointer
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BYTE bJammed; // CPU has crashed (NMOS 6502 only)
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};
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extern regsrec regs;
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extern unsigned __int64 g_nCumulativeCycles;
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void CpuAdjustIrqCheck(UINT uCyclesUntilInterrupt);
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void CpuDestroy ();
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void CpuCalcCycles(ULONG nExecutedCycles);
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DWORD CpuExecute(const DWORD uCycles, const bool bVideoUpdate);
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ULONG CpuGetCyclesThisVideoFrame(ULONG nExecutedCycles);
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void CpuInitialize ();
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void CpuSetupBenchmark ();
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void CpuIrqReset();
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void CpuIrqAssert(eIRQSRC Device);
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void CpuIrqDeassert(eIRQSRC Device);
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void CpuNmiReset();
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void CpuNmiAssert(eIRQSRC Device);
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void CpuNmiDeassert(eIRQSRC Device);
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void CpuReset ();
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void CpuSaveSnapshot(class YamlSaveHelper& yamlSaveHelper);
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void CpuLoadSnapshot(class YamlLoadHelper& yamlLoadHelper);
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BYTE CpuRead(USHORT addr, ULONG uExecutedCycles);
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void CpuWrite(USHORT addr, BYTE a, ULONG uExecutedCycles);
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enum eCpuType {CPU_UNKNOWN=0, CPU_6502=1, CPU_65C02, CPU_Z80}; // Don't change! Persisted to Registry
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eCpuType GetMainCpu(void);
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void SetMainCpu(eCpuType cpu);
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eCpuType ProbeMainCpuDefault(eApple2Type apple2Type);
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void SetMainCpuDefault(eApple2Type apple2Type);
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eCpuType GetActiveCpu(void);
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void SetActiveCpu(eCpuType cpu);
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bool Is6502InterruptEnabled(void);
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void ResetCyclesExecutedForDebugger(void);
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