kopia lustrzana https://github.com/Jean-MarcHarvengt/MCUME
66 wiersze
1.7 KiB
C
66 wiersze
1.7 KiB
C
#ifndef CPU_H_
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#define CPU_H_
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#include "atari.h"
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#define CPU_N_FLAG 0x80
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#define CPU_V_FLAG 0x40
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#define CPU_B_FLAG 0x10
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#define CPU_D_FLAG 0x08
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#define CPU_I_FLAG 0x04
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#define CPU_Z_FLAG 0x02
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#define CPU_C_FLAG 0x01
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void CPU_GetStatus(void);
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void CPU_PutStatus(void);
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void CPU_Reset(void);
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void CPU_StateSave(UBYTE SaveVerbose);
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void CPU_StateRead(UBYTE SaveVerbose, UBYTE StateVersion);
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void CPU_NMI(void);
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void CPU_GO(int limit);
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#define CPU_GenerateIRQ() (CPU_IRQ = 1)
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extern UWORD CPU_regPC;
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extern UBYTE CPU_regA;
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extern UBYTE CPU_regP;
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extern UBYTE CPU_regS;
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extern UBYTE CPU_regY;
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extern UBYTE CPU_regX;
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#define CPU_SetN CPU_regP |= CPU_N_FLAG
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#define CPU_ClrN CPU_regP &= (~CPU_N_FLAG)
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#define CPU_SetV CPU_regP |= CPU_V_FLAG
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#define CPU_ClrV CPU_regP &= (~CPU_V_FLAG)
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#define CPU_SetB CPU_regP |= CPU_B_FLAG
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#define CPU_ClrB CPU_regP &= (~CPU_B_FLAG)
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#define CPU_SetD CPU_regP |= CPU_D_FLAG
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#define CPU_ClrD CPU_regP &= (~CPU_D_FLAG)
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#define CPU_SetI CPU_regP |= CPU_I_FLAG
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#define CPU_ClrI CPU_regP &= (~CPU_I_FLAG)
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#define CPU_SetZ CPU_regP |= CPU_Z_FLAG
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#define CPU_ClrZ CPU_regP &= (~CPU_Z_FLAG)
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#define CPU_SetC CPU_regP |= CPU_C_FLAG
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#define CPU_ClrC CPU_regP &= (~CPU_C_FLAG)
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extern UBYTE CPU_IRQ;
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extern void (*CPU_rts_handler)(void);
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extern UBYTE CPU_cim_encountered;
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#define CPU_REMEMBER_PC_STEPS 64
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extern UWORD CPU_remember_PC[CPU_REMEMBER_PC_STEPS];
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extern UBYTE CPU_remember_op[CPU_REMEMBER_PC_STEPS][3];
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extern unsigned int CPU_remember_PC_curpos;
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extern int CPU_remember_xpos[CPU_REMEMBER_PC_STEPS];
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#define CPU_REMEMBER_JMP_STEPS 16
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extern UWORD CPU_remember_JMP[CPU_REMEMBER_JMP_STEPS];
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extern unsigned int CPU_remember_jmp_curpos;
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#ifdef MONITOR_PROFILE
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extern int CPU_instruction_count[256];
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#endif
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#endif /* CPU_H_ */
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