diff options
Diffstat (limited to 'include/gba/io_reg.h')
| -rw-r--r-- | include/gba/io_reg.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/gba/io_reg.h b/include/gba/io_reg.h index f86f2434c..998e68e16 100644 --- a/include/gba/io_reg.h +++ b/include/gba/io_reg.h @@ -584,6 +584,23 @@ #define TIMER_INTR_ENABLE 0x40 #define TIMER_ENABLE 0x80 +// BGCNT +#define BGCNT_PRIORITY(n) (n) // Values 0 - 3. Lower priority BGs will be drawn on top of higher priority BGs. +#define BGCNT_CHARBASE(n) ((n) << 2) // Values 0 - 3. Base block for tile pixel data. +#define BGCNT_MOSAIC 0x0040 +#define BGCNT_16COLOR 0x0000 // 4 bits per pixel +#define BGCNT_256COLOR 0x0080 // 8 bits per pixel +#define BGCNT_SCREENBASE(n) ((n) << 8) // Values 0 - 31. Base block for tile map. +#define BGCNT_WRAP 0x2000 // Only affects affine BGs. Text BGs wrap by default. +#define BGCNT_TXT256x256 0x0000 // Internal screen size size of text mode BG in pixels. +#define BGCNT_TXT512x256 0x4000 +#define BGCNT_TXT256x512 0x8000 +#define BGCNT_TXT512x512 0xC000 +#define BGCNT_AFF128x128 0x0000 // Internal screen size size of affine mode BG in pixels. +#define BGCNT_AFF256x256 0x4000 +#define BGCNT_AFF512x512 0x8000 +#define BGCNT_AFF1024x1024 0xC000 + // serial #define SIO_ID 0x0030 // Communication ID |