Posted By
Luca
on 2024-02-17
03:50:59
 |  Re: Need help with raster interrupt
Mmmh...  I'm probably misunderstanding both your goals and your trouble. But.
$FF09 Bit1 activates when the raster matches $FF0B value, which is $CC in the normal JMP$CE0E routine of the machine and $A1 in the JMP$CE42 of the vblank at $0312/$0313. Maybe you didn't set up the right value of the scanline where to start printing on the screen? Just a blind arguing... |
