Saving the state of HP41 CL to PC
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12-31-2017, 03:25 AM
Post: #19
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RE: Saving the state of HP41 CL to PC
(12-28-2017 03:46 AM)PeterP Wrote: [*]Which events/functions clear the RAM page at 0x800? I think that MEMORY LOST clears some 41C register information, but I've never traced that sequence. Saving page 804 will preserve the MMU programming. Not all Flash devices have the segmented top block that make the YWALL easy to use. If the top block is not segmented you'll end up erasing the entire block (pages 1F8 through 1FF). In addition, depending on the sequence, you may end up inadvertently erasing 1FE when you attempt to write 1FF. There is no room in YFNZ. |
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