1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
#ifndef __LCD_GB_H__
#define __LCD_GB_H__
#include "defs.h"
struct vissprite
{
byte *buf;
int x;
byte pal, pri, pad[6];
};
struct scan
{
int bg[64];
int wnd[64];
#if LCD_DEPTH == 1
byte buf[8][256];
#elif LCD_DEPTH == 2
byte buf[4][256];
#elif LCD_DEPTH > 4
byte buf[1][256];
#endif
byte pal1[128];
un16 pal2[64];
un32 pal4[64];
byte pri[256];
struct vissprite vs[16];
int ns, l, x, y, s, t, u, v, wx, wy, wt, wv;
};
struct obj
{
byte y;
byte x;
byte pat;
byte flags;
};
struct lcd
{
byte vbank[2][8192];
union
{
byte mem[256];
struct obj obj[40];
} oam;
byte pal[128];
};
extern struct lcd lcd;
extern struct scan scan;
void updatepatpix(void) ICODE_ATTR;
void tilebuf(void);
void bg_scan(void);
void wnd_scan(void);
void bg_scan_pri(void);
void wnd_scan_pri(void);
void spr_count(void);
void spr_enum(void);
void spr_scan(void);
void lcd_begin(void);
void lcd_refreshline(void);
void pal_write(int i, byte b);
void pal_write_dmg(int i, int mapnum, byte d);
void vram_write(int a, byte b);
void vram_dirty(void);
void pal_dirty(void);
void lcd_reset(void);
#endif
|
