Changes
ASIC
,/* Hardware Sprites */
Sprites are prioritized so that the border has the highest priority, followed by sprites 0 to 15 in sequence, then the main screen data.
There is only one pixel per byte in sprite image data. Bits3..0 of each byte define the palette index for this pixel. Bits7..4 are ignored.
Each sprite magnification is coded in 1 byte:
* bits7..3 are ignored
* bits3..2 are X magnification (00 = not displayed, 01 = x1, 10 = x2, 11 = x4)
* bits1..0 are Y magnification (00 = not displayed, 01 = x1, 10 = x2, 11 = x4)
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