[HN Gopher] First ROM Shadowing ___________________________________________________________________ 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. ___________________________________________________________________ (page generated 2023-04-22 23:00 UTC)