[HN Gopher] First ROM Shadowing
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       First ROM Shadowing
        
       Author : kencausey
       Score  : 34 points
       Date   : 2023-04-22 17:48 UTC (5 hours ago)
        
 (HTM) web link (www.os2museum.com)
 (TXT) w3m dump (www.os2museum.com)
        
       | smilespray wrote:
       | The Amiga 1000 had to get the Kickstart ROM from floppy into RAM
       | in 1985.
       | 
       | I think that counts.
        
         | monocasa wrote:
         | I could see an argument either way.
         | 
         | Particularly since the data on the floppy isn't directly
         | addressable, so it's not really shadowing another region.
        
       | sbisson wrote:
       | I had a third-party shadow ROM kit for a BBC Micro in 1984; it
       | let me back-up and load add-on ROMs into its memory and switch
       | between them quickly.
        
       | MBCook wrote:
       | Can someone explain why ROM was slower? I would have guessed it
       | was faster.
       | 
       | Is there some technical limitation? Or was it more of a "can can
       | shadow the ROM so save the extra few cents on faster ROM" thing?
       | Just that no one was pushing as hard as for faster RAM.
        
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       (page generated 2023-04-22 23:00 UTC)