mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-12-25 18:51:49 +01:00
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
|
|
#ifndef _VDP_H_
|
|
#define _VDP_H_
|
|
|
|
/* Global variables */
|
|
extern uint8 sat[0x400];
|
|
extern uint8 vram[0x10000];
|
|
extern uint8 cram[0x80];
|
|
extern uint8 vsram[0x80];
|
|
extern uint8 reg[0x20];
|
|
extern uint16 addr;
|
|
extern uint16 addr_latch;
|
|
extern uint8 code;
|
|
extern uint8 pending;
|
|
extern uint16 status;
|
|
extern uint16 ntab;
|
|
extern uint16 ntbb;
|
|
extern uint16 ntwb;
|
|
extern uint16 satb;
|
|
extern uint16 hscb;
|
|
extern uint16 sat_base_mask;
|
|
extern uint16 sat_addr_mask;
|
|
extern uint8 border;
|
|
extern uint8 bg_name_dirty[0x800];
|
|
extern uint16 bg_name_list[0x800];
|
|
extern uint16 bg_list_index;
|
|
extern uint8 bg_pattern_cache[0x80000];
|
|
extern uint8 playfield_shift;
|
|
extern uint8 playfield_col_mask;
|
|
extern uint16 playfield_row_mask;
|
|
extern uint32 y_mask;
|
|
extern uint8 hint_pending;
|
|
extern uint8 vint_pending;
|
|
extern int16 h_counter;
|
|
extern int16 hc_latch;
|
|
extern uint16 v_counter;
|
|
extern uint8 im2_flag;
|
|
extern uint16 frame_end;
|
|
extern uint8 dmafill;
|
|
extern uint8 vdp_pal;
|
|
extern uint8 vdp_rate;
|
|
extern uint32 dma_endCycles;
|
|
extern void (*color_update)(int index, uint16 data);
|
|
|
|
|
|
/* Function prototypes */
|
|
void vdp_init(void);
|
|
void vdp_reset(void);
|
|
void vdp_shutdown(void);
|
|
void vdp_ctrl_w(uint16 data);
|
|
uint16 vdp_ctrl_r(void);
|
|
void vdp_data_w(uint16 data);
|
|
uint16 vdp_data_r(void);
|
|
void vdp_reg_w(uint8 r, uint8 d);
|
|
uint16 vdp_hvc_r(void);
|
|
void dma_copy(void);
|
|
void dma_vbus(void);
|
|
void dma_update(int type, int length);
|
|
void dma_fill(uint16 data);
|
|
void vdp_test_w(uint16 value);
|
|
|
|
#endif /* _VDP_H_ */
|