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   comp.sys.apple2      Discussion about Apple II micros      56,720 messages   

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   Message 55,273 of 56,720   
   Nick Westgate to Jason Harper   
   Re: Reading the IIgs Text ROM data from    
   07 Feb 22 23:43:28   
   
   From: nick.westgate@gmail.com   
      
   On Tuesday, February 8, 2022 at 4:39:54 PM UTC+10, Jason Harper wrote:   
   > (I'm the commenter from stackexchange mentioned in the first post.)    
   >    
   > I did some digging through old disk images containing even older disk images   
   (watch Inception for details), and found the source code where I'd actually   
   implemented character ROM reading on the IIgs. I got the technique directly   
   from an Apple engineer    
   back in the day - it's entirely possible I'm the only programmer outside of   
   Apple who ever used it.    
      
   Thanks for digging through your meta-images!   
      
   Apart from the obvious questions, I'd also be interested to know why you   
   actually wanted/needed to do this. Was it for fun or a project?   
      
   > I'm pretty sure that all the registers involved are part of the Mega II   
   chip, so it's not actually specific to the IIgs.    
      
   Yeah, I noticed in the hardware reference that the character generator ROM is   
   part of the Mega II, so that makes sense.   
      
   Cheers,   
   Nick.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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