Mother2GbaTranslation/m2-notes.txt

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2017-03-07 22:12:52 +00:00
General notes
=============
Font palette:
- Standard text windows: 0x4 = background, 0xF = foreground
- File select/setup windows: 0x1 = background, 0x9 = foreground
Hard-coded characters:
- 0xFD: bullet (tile 0x1DD)
- 0xFE: equip (tile 0x1DE)
- Null (tile 0x1DF)
- Background (tile 0x1FF)
0x30051EC: tile offset (usually 0x100)
0x3005228: current text palette, << 0xC
0x3005230: addresses of all 11 windows
0x3005270: address of tilemap start in WRAM, can use this to figure out X and Y
LDRB Rx,[Ry,#n]: n has range 0-31
LDRH Rx,[Ry,#n]: n has range 0-62
LDR Rx,[Ry,#n]: n has range 0-124 (0-1020 for SP- and PC-relative)
Subroutines
-----------
Windows
-------
Window structure:
0x00 - 0x03: bitfield
0x00000001: enable
0xFFFFFFFE: ?
0x04 - 0x07: start address of text being displayed
0x08 - 0x0B: same as above?
0x0C - 0x13: unused?
0x14 - 0x1B: ?
0x1C - 0x1F: unused?
0x20 - 0x21: area (width*height)
0x22 - 0x23: text area X
0x24 - 0x25: text area Y
0x26 - 0x27: window width
0x28 - 0x29: window height
0x2A - 0x2B: relative text X
0x2C - 0x2D: relative text Y
0x2E - 0x33: ?
0x34 - 0x35: cursor X
0x36 - 0x37: cursor Y
0x38 - 0x43: unused?
0x44: ?
0x45 - 0x4F: unused?