HP-71B MultiMod ROM Emulator User Manual
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01-20-2021, 01:23 PM
Post: #11
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RE: HP-71B MultiMod ROM Emulator User Manual
Hello Mark,
(01-20-2021 02:44 AM)mfleming Wrote: Excellent summary! I should include something like this in the Appendix. Here are a couple of comments.Thanks! (you can take mine if you want) (01-20-2021 02:44 AM)mfleming Wrote:Understood, I will update my summary to reflect this.(01-20-2021 01:36 AM)Sylvain Cote Wrote:The ROM order of enumeration follows the order of entries in the table. ... (01-20-2021 02:44 AM)mfleming Wrote:I know, I will update my summary to show a ROM with multiple chips of 16K.(01-20-2021 01:36 AM)Sylvain Cote Wrote:This should really be expected chip size. If you build a ROM from a sequence of 16K chips then it can be any multiple of 16KB. You could build a 48KB ROM from three 16KB chips, or from one 32KB and one 16KB chip if you want! (01-20-2021 02:44 AM)mfleming Wrote:If it is calculated by your code, then I think you should just say to put 0x00 in that field, this will remove questions from a beginner.(01-20-2021 01:36 AM)Sylvain Cote Wrote:This is a lookup value used when mapping a 71B address to an address in flash memory. I used to do it by hand but realized it was a certain source of error if others had to do it. The value is now computed when the processor starts. (01-20-2021 02:44 AM)mfleming Wrote: Edit: I should warn against changing the MMIO entry. You can probably guess why...Mmmm, I wonder ... LOL Question: for the place holder lines in the table, what should be put there to make it neutral, like default values for that type of line. Sylvain |
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