diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/gba/io_reg.h | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/include/gba/io_reg.h b/include/gba/io_reg.h index 5234e5b6c..c0874bcbb 100644 --- a/include/gba/io_reg.h +++ b/include/gba/io_reg.h @@ -495,12 +495,12 @@ // I/O register fields // DISPCNT -#define DISPCNT_MODE_0 0x0000 -#define DISPCNT_MODE_1 0x0001 -#define DISPCNT_MODE_2 0x0002 -#define DISPCNT_MODE_3 0x0003 -#define DISPCNT_MODE_4 0x0004 -#define DISPCNT_MODE_5 0x0005 +#define DISPCNT_MODE_0 0x0000 // BG0: text, BG1: text, BG2: text, BG3: text +#define DISPCNT_MODE_1 0x0001 // BG0: text, BG1: text, BG2: affine, BG3: off +#define DISPCNT_MODE_2 0x0002 // BG0: off, BG1: off, BG2: affine, BG3: affine +#define DISPCNT_MODE_3 0x0003 // Bitmap mode, 240x160, BGR555 color +#define DISPCNT_MODE_4 0x0004 // Bitmap mode, 240x160, 256 color palette +#define DISPCNT_MODE_5 0x0005 // Bitmap mode, 160x128, BGR555 color #define DISPCNT_OBJ_1D_MAP 0x0040 #define DISPCNT_FORCED_BLANK 0x0080 #define DISPCNT_BG0_ON 0x0100 @@ -521,6 +521,26 @@ #define DISPSTAT_HBLANK_INTR 0x0010 // H-Blank interrupt enabled #define DISPSTAT_VCOUNT_INTR 0x0020 // V-Count interrupt enabled +// 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 + +// BLDCNT + + // SOUNDCNT_H #define SOUND_CGB_MIX_QUARTER 0x0000 #define SOUND_CGB_MIX_HALF 0x0001 |