41 MCODE - Copying bank-switched pages
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10-15-2014, 05:47 AM
(This post was last modified: 10-15-2014 05:48 AM by Ángel Martin.)
Post: #10
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RE: 41 MCODE - Copying bank-switched pages
(10-14-2014 06:32 PM)Monte Dalrymple Wrote: One way to start would be to initialize the first word of every RAM page to 0 after the Memory Lost. Since this isn't a valid first word for an image, it is a reliable indicator that the RAM page doesn't contain an image. This even works for HEPAX memory pages. This at least makes it possible to check individual pages; just YPEEK the first word. This approach might even be better than using a separate table, but I'll have to think about it. Since the RAM contents survives the Memory Lost event, wouldn't the automated erasing you describe mess up with all the valid pages then? The first word of the block has the XROM# in those instances. "To live or die by your own sword one must first learn to wield it aptly." |
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Messages In This Thread |
41 MCODE - Copying bank-switched pages - Ángel Martin - 10-12-2014, 10:14 AM
RE: 41 MCODE - Copying bank-switched pages - Gene - 10-12-2014, 11:55 AM
RE: 41 MCODE - Copying bank-switched pages - Ángel Martin - 10-12-2014, 03:00 PM
RE: 41 MCODE - Copying bank-switched pages - Monte Dalrymple - 10-12-2014, 11:00 PM
RE: 41 MCODE - Copying bank-switched pages - Ángel Martin - 10-13-2014, 11:56 AM
RE: 41 MCODE - Copying bank-switched pages - Monte Dalrymple - 10-13-2014, 01:36 PM
RE: 41 MCODE - Copying bank-switched pages - Ángel Martin - 10-13-2014, 08:45 PM
RE: 41 MCODE - Copying bank-switched pages - Gene - 10-13-2014, 11:40 PM
RE: 41 MCODE - Copying bank-switched pages - Monte Dalrymple - 10-14-2014, 06:32 PM
RE: 41 MCODE - Copying bank-switched pages - Ángel Martin - 10-15-2014 05:47 AM
RE: 41 MCODE - Copying bank-switched pages - Monte Dalrymple - 10-15-2014, 01:36 PM
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