HP-41CY re-initialization ROM
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11-04-2019, 08:02 PM
Post: #15
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RE: HP-41CY re-initialization ROM
(11-04-2019 03:48 PM)PeterP Wrote: Juergen, that makes total sense for the kick-off of the initialization. My concern was with the pages where you store the OS. My understanding is that you use a CLONIX which has the init module on page 4 and the OS/A on page E and the OS/B on page F. You can still write to RAM pages using WROM, even if they are masked by ROM images in the CLONIX. However, jumps to such addresses will end up in ROM code. This is described by Winfried Maschke in this post. I don't exactly understand it (electronics stuff), but I confirmed that it works like that. Does this answer your question? |
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