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Post by kaos116 on Feb 7, 2007 22:15:13 GMT -5
Hey all, I am not sure where to post this question, but I figured here was the most appropriate.
Has anyone ever swapped out the 'basic rom' chip with something they had programmed to an EEPROM?
It's a generic question, but I am specifically wondering about the Plus/4 and it's 2 ROM chips that have the 4 built in software programs. If I wrote a program and burned it into an EEPROM it should work. Right? or is there something inside the old 8-bits that I might be missing?
Thanks,
Todd
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Post by Golan Klinger on Feb 7, 2007 23:06:17 GMT -5
I've installed JiffyDOS on a 64 which is essentially the same as what you're talking about doing. I can't say authoritatively if such a thing would work on a Plus/4 but I can't see why not. Had you considered testing your replacement ROM image with with VICE before burning and swapping? It would give you an excellent idea of how the Plus/4 will react when you swap the ROMs.
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Post by kaos116 on Feb 8, 2007 2:56:15 GMT -5
I would test the rom image on some emulator, but I am not sure how much it would actually be able to tell me. The software would be mainly interfacing hardware. I have been playing around with Microchips new Microcontroller with built in network interface. It takes alot of the TCP/IP stack issues and handles them internally. The thought of the ROM replacement is to be just have either a stripped 'web browser' or some form of FTP software built in. Something more useful than that spread sheet? Just another thought on a winter project.
Thanks,
Todd
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Post by kaos116 on Feb 9, 2007 11:38:12 GMT -5
I went looking for some ways to program the Plus/4 and what I found was amazing. 'YAPE', the Plus/4 emulator and 'Plus4ide'. Plus4ide uses AS65 and will automatically launch your program in YAPE when you assemble and run. Talk about an easy programming enviroment. And the best part!?!?!? it was all free!!!
The only step I haven't found a solution to yet ( not that I looked very hard) is how to convert the .prg to a .bin file for testing as a ROM chip in YAPE.
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Post by brotherbryce on Mar 1, 2007 0:27:07 GMT -5
Y'know I once sold a Gameboy Advance SP to a guy on ebay who was the Internet Technology Director for the Boston Celtics. When I figured out who he was, I asked him, "aren't you a little busy for playing around with gameboys?" he responded by telling me that he was using it with a custom-made cartridge which essentially turned the gameboy into a glorified electronics logic probe with a full-color display. He directed me to a site where you could buy one of these gadgets for about $15. I was thinking, wow. That's a great idea. Just make your analysis equipment on a gameboy cart, and all the display apparatus is already built. Nice.
Probably off-topic (you know me!) but I think it's great to use this equipment for good productive stuff.
-Bryce
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