2017-12-14 05:36:24 +00:00
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RGB: MACRO
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rept _NARG / 3
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2018-01-07 18:11:29 +00:00
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dw palred (\1) + palgreen (\2) + palblue (\3)
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2020-04-04 18:42:31 +00:00
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shift 3
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2017-12-14 05:36:24 +00:00
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endr
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ENDM
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2018-01-07 18:11:29 +00:00
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palred EQUS "(1 << 0) *"
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palgreen EQUS "(1 << 5) *"
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palblue EQUS "(1 << 10) *"
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2018-01-23 00:57:35 +00:00
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palettes EQUS "* PALETTE_SIZE"
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palette EQUS "+ PALETTE_SIZE *"
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color EQUS "+ PAL_COLOR_SIZE *"
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2018-01-23 00:40:17 +00:00
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tiles EQUS "* LEN_2BPP_TILE"
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tile EQUS "+ LEN_2BPP_TILE *"
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2018-09-01 01:39:17 +00:00
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; extracts the middle two colors from a 2bpp binary palette
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; example usage:
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; INCBIN "foo.gbcpal", middle_colors
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middle_colors EQUS "PAL_COLOR_SIZE, PAL_COLOR_SIZE * 2"
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2020-04-04 19:19:43 +00:00
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dbpixel: MACRO
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if _NARG >= 4
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; x tile, y tile, x pixel, y pixel
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db \1 * TILE_WIDTH + \3, \2 * TILE_WIDTH + \4
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else
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; x tile, y tile
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db \1 * TILE_WIDTH, \2 * TILE_WIDTH
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endc
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ENDM
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ldpixel: MACRO
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if _NARG >= 5
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; register, x tile, y tile, x pixel, y pixel
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lb \1, \2 * TILE_WIDTH + \4, \3 * TILE_WIDTH + \5
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else
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; register, x tile, y tile
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lb \1, \2 * TILE_WIDTH, \3 * TILE_WIDTH
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endc
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ENDM
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depixel EQUS "ldpixel de,"
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bcpixel EQUS "ldpixel bc,"
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`dsprite y, ypx, x, xpx, off, attr` -> `dbsprite x, y, xpx, ypx, off, attr`
2020-04-04 20:00:30 +00:00
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dbsprite: MACRO
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; x tile, y tile, x pixel, y pixel, vtile offset, attributes
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db (\2 * TILE_WIDTH) % $100 + \4, (\1 * TILE_WIDTH) % $100 + \3, \5, \6
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2020-04-04 19:19:43 +00:00
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ENDM
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