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

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   Message 56,569 of 56,720   
   Kelvin Sherlock to All   
   Re: How does the Apple IIGS emulate a II   
   16 Feb 24 00:31:52   
   
   From: kelvin@pro-kegs.uucp   
      
   From "Cortland Custom ICs - Wayne Lowry - Preliminary notes - 19860214"   
   (via https://www.brutaldeluxe.fr/documentation/cortland.html)   
      
   The Mega II is the integration of several enhanced Apple II chips. The   
   following chips comprise the Mega II:   
      
   * MMU Custom Chip   
   * IOU Custom Chip   
   * Character Generator ROMs (8 languages)   
   * TMG Timing Generator   
   * GLU General logic Unit   
   * Video logic   
      
   The Mega II, shown in Figure 10, has virtually all the characteristics   
   of an Apple II on a chip; it supports a slotted architecture and has   
   built-in peripherals.   
      
   ---   
   It's possible that everybody, including Apple, has been wrong for 37   
   years but extraordinary claims require extraordinary evidence.   
      
   -------   
   ProLine: kelvin@pro-kegs   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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