Re: [hatari-devel] Blitter bug in STe mode

["Roger Burrows" <anodyne@xxxxxxxxxxxx>]

Some more info, from debug statements added to the vertical line blitting code. 
The lines that are drawn incorrectly use XOR mode, color=15 (in low rez).

BTW, the easiest way I've found to reproduce this is to start with the window 
mostly off the screen at the bottom, then grab the title bar and move the 
window outline around near the top of the screen.  Before you release the 
mouse, you'll see segments of lines drawn over what's below (window or 
desktop).  And the segments are not all the same colour (in case that helps).
Also, the segments drawn (which I believe are artifacts of the left vertical 
window outline) are all in the top half of the screen.

Initial testing (with debug statements) was with current (repo) EmuTOS and 
Hatari 2.1, but the comments about how to reproduce, the line positions, and 
the line colours also applies to EMuTOS 0.9.12.

Roger