From: usotsuki@buric.co   
      
   On Mon, 19 Feb 2024, Mitchell Spector wrote:   
      
      
      
   >    This is unlike the Gemini chip on the Apple IIe PDS card. In that   
   > situation this Apple IIe-on-a-chip takes over the host machine and   
   > the Macintosh literally becomes an Apple IIe (for the most part, video   
   > of course is emulated by QuickDraw, and there is still a custom GUI   
   > control panel accessible when it's suspended).   
      
   And said video emulation is slightly "off" - DGR mode doesn't work right   
   (the color in every other column is wrong).   
      
   >    I think the misconception has been: when the IIGS goes into 8-bit   
   > emulation mode, the Mega II kicks in and takes over full control like   
   > the Gemini--it does NOT. Likely why, perhaps, some IIGS-specific   
   > features can still be accessible under Applesoft BASIC (through peeks   
   > and pokes, I've seen the Ensoniq and SHR graphics used). Or how   
   > there's been hybrid games possible, essentially 8-bit software with   
   > some glorified audio/visual effects mixed in (e.g. Paperboy, Gauntlet,   
   > John Madden's Football).   
      
   I've been wanting to do a modification/partial rewrite of Prince of Persia   
   that uses the Apple IIgs video modes - but I'm not quite at the point I   
   know enough about the code or the 65816 to do that.   
      
      
      
   -uso.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)