www.emulatronia.com/doctec/consolas/pce/vdcdox.txt
ttp://www.emulatronia.com/doctec/consolas/pce/vdcdox.txt
の説明によると
以下のようにB15に上下反転のフラグがあるからこれが壊れてんだろ
アホーのアカウントなんか無いからだれか説明してやって

3 R/W Sprite attributes

b 15 y-invert flag (upside-down)
b 14 unused
b 13-12 'CGY'
00 = sprite is 1 'cell' (16 pixels) high
01 = sprite is 2 cells high (32 pixels)
10 = invalid
11 = sprite is 4 cells high (64 pixels)
b 11 x-invert flag (left-right invert)
b 10-9 unused
b 8 'CGX'
0 = sprite is 1 'cell' wide (16 pixels)
1 = sprite is 2 cells wide (32 pixels)
b 7 'SPBG'; is sprite in foreground (in front
of CG) or background (behind CG)
b 6-4 unused
b 3-0 sprite colour (i.e. which of 16 sprite
palettes to use) 👀
Rock54: Caution(BBR-MD5:0be15ced7fbdb9fdb4d0ce1929c1b82f)