ZEPROM Programmer: Software Bug?
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02-18-2014, 02:35 PM
(This post was last modified: 02-18-2014 02:38 PM by Ángel Martin.)
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ZEPROM Programmer: Software Bug?
Hi folks, admittedly not a very frequently asked subject but nonetheless there may be some interest out there...
For a while I've been experiencing some glitches programming ZEPROMS using the ZVC device. I sort of assumed the device wasn't doing its job due to age but in looking at the Zeprom programmer's code I noticed a couple of potential bugs. The one with most dubious results is a call at addresses 0xp3BE and 3BF to the mainframe location 0x2C6C. That particular destination is in the middle of a LDI S&X instruction, thus not a good choice. Worse yet, the second half of said instruction is actually 040 WROM (when executed stand-alone) so I reckon it's got to opportunity to wreck things up during the EPROM burning job... Has anybody run into this before? Maybe there was an updated version that corrected this problem.. . if you know, pls. let me know. Cheers, ÁM PS. does anybody know of any ZEPROM-based module that used bank-switching for user code (i.e. FOCAL) programs? "To live or die by your own sword one must first learn to wield it aptly." |
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Messages In This Thread |
ZEPROM Programmer: Software Bug? - Ángel Martin - 02-18-2014 02:35 PM
RE: ZEPROM Programmer: Software Bug? - J-F Garnier - 02-19-2014, 02:40 PM
RE: ZEPROM Programmer: Software Bug? - Ángel Martin - 02-20-2014, 07:02 AM
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