Changing the refresh scanline with a +1...

VIDEO_UPDATE( snes )
{
int y;

for (y = cliprect->min_y; y <= cliprect->max_y; y++)
snes_refresh_scanline(screen->machine, bitmap, y+1);
return 0;
}

...fixes all the line bugs except for one in Umiwara Kawa Se, but I guess that's another issue...what do you think? Hackish maybe?

Originally Posted by etabeta78
it should not affect speed *cut*

Guess that you don't know that your changes have hitted a noticeable speed drop, no? (try Dead Dance on plain 0.133 and now and let me know...)