AppleWin/source/CPU.h

#pragma once

typedef struct _regsrec {
  BYTE a;   // accumulator
  BYTE x;   // index X
  BYTE y;   // index Y
  BYTE ps;  // processor status
  WORD pc;  // program counter
  WORD sp;  // stack pointer
  BYTE bJammed; // CPU has crashed (NMOS 6502 only)
} regsrec, *regsptr;

extern regsrec    regs;
extern unsigned __int64 g_nCumulativeCycles;

void    CpuDestroy ();
void    CpuCalcCycles(ULONG nExecutedCycles);
DWORD   CpuExecute (DWORD);
ULONG   CpuGetCyclesThisFrame(ULONG nExecutedCycles);
void    CpuInitialize ();
void    CpuSetupBenchmark ();
void	CpuIrqReset();
void	CpuIrqAssert(eIRQSRC Device);
void	CpuIrqDeassert(eIRQSRC Device);
void	CpuNmiReset();
void	CpuNmiAssert(eIRQSRC Device);
void	CpuNmiDeassert(eIRQSRC Device);
void    CpuReset ();
DWORD   CpuGetSnapshot(SS_CPU6502* pSS);
DWORD   CpuSetSnapshot(SS_CPU6502* pSS);

BYTE	CpuRead(USHORT addr, ULONG uExecutedCycles);
void	CpuWrite(USHORT addr, BYTE a, ULONG uExecutedCycles);