collapseos/arch/z80/sms/blk/608

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2020-05-15 12:14:27 -04:00
: VDP$
9 0 DO _idat I 2 * + @ _ctl LOOP _blank
( palettes )
0xc000 _ctl
( BG ) 1 _zero 0x3f _data 14 _zero
( sprite, inverted colors ) 0x3f _data 15 _zero
0x4000 _ctl 0x5e 0 DO ~FNT I 7 * + _sfont LOOP
( bit 6, enable display, bit 7, ?? ) 0x81c0 _ctl ;