dos33fsprogs/gr-sim/6502_emulate.h
2018-07-01 23:06:08 -04:00

24 lines
499 B
C

#define RAMSIZE 128*1024
extern unsigned char ram[RAMSIZE];
extern unsigned char a,y,x;
extern unsigned short sp;
extern unsigned int n,z,c,v;
unsigned short y_indirect(unsigned char base, unsigned char y);
int init_6502(void);
void adc(int value);
void sbc(int value);
void cmp(int value);
void pha(void);
void pla(void);
void lsr(void);
void asl(void);
void ror(void);
void rol(void);
void ror_mem(int addr);
void rol_mem(int addr);
unsigned char high(int value);
unsigned char low(int value);