genesisplus-dc/io.h at main · nextgeniuspro/genesisplus-dc · GitHub

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#ifndef _IO_H_
#define _IO_H_

/*

void io_reset(void);
void io_set_version(int export, int pal, int fdd, int n);


*/

typedef struct
{
    void (*data_w)(int pad, uint8 data);
    uint8 (*data_r)(int pad);
} port_t;

typedef struct
{
    uint8 state;
} t_input_3b;

/* Global variables */
extern port_t port[3];
extern uint8 io_reg[0x10];

/* Function prototypes */
extern void io_reset(void);
extern void gen_io_w(int offset, int value);
extern int gen_io_r(int offset);

extern uint8 pad_2b_r(int pad);
extern uint8 device_3b_r(int pad);
extern void device_3b_w(int pad, uint8 data);

/* SD - Reset the device pointers */
extern void io_rescan();

#endif /* _IO_H_ */