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Post by mirkosoft on Jun 17, 2014 14:34:26 GMT
Hi!
I'm searching for C64 cartridge image of CP/M 2.2 with built-in Z80 CPU - really don't know if exists, there's used new CPU and it's not easy to do any functionality.
I mean in VICE will not work, but if I can't to try it, I can't to give suggestion for VICE developers.
If anybody has CRT or ROM or BIN image, please create link to download it.
Thank you for everything!
Miro
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Post by hydrophilic on Jun 17, 2014 16:44:25 GMT
As I understand it, the cartridge is mainly just a Z80 CPU. There is no ROM or RAM. You need to boot CP/M from disk. Because CP/M is very disk intensive, and the 1541 is extremely slow, this was never a popular cartridge.
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Post by trainmaster on Jan 16, 2016 18:08:33 GMT
I have some photos of the CP/M cartridge for the C64 that I have included here. Long ago I also found three disc images that you can download by clicking here. I'm not sure if they are relevant though. All of them include a small basic/ML program that is only 1 disc block in size. But it may be some kind of loader for hidden CP/M data on the discs since CP/M doesn't use the same disc format as the C64. See what you can make of it Miro 
Looking at the circuit board picture, you are probably right hydrophilic, there is no RAM or ROM on the card.
You can also download the manual for the CP/M cartridge here. Somewhat interesting reading
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Post by hydrophilic on Jan 22, 2016 8:38:49 GMT
SORRY, YOU HAVE BEEN BLOCKED! WTF is this? Well now original post has vanished into cyberspace. Thanks internet genie!  Let me summarize: Thanks for the photos and links, trainmaster! You are correct, the small program is a loader. Using CP/M on C128, you can view the normal files on the disks. Disks 1 and 3 list the same files. These are mainly standard system utilities like ED, PIP and STAT. I believe the difference between the two is the hidden system data (on tracks 1 and 2) which contains the actually OS code. (Unlike CP/M 3 on the C128 which lists this as a normal file in the directory). According to the docs, the standard disk supplied by Commodore has 44K-free-RAM version of CP/M 2.2. However, you can use utility SYSGEN to create a modified CP/M with more or less free RAM. They say you can increase the free RAM to 48K (maximum) if you don't use the IEEE 488 cartridge (which is almost everybody). Disk 2 includes source code for some of the Commodore-specific utilities, like COPY and SYSGEN. Also unlike CP/M 3 on the C128, there is no CCP.COM file (similar to ********** on MS-DOS or ******* on Windows). I'm guessing CCP is built-in to the main (hidden) CP/M OS file? Wow, there are more differences between CP/M 2.2 and CP/M 3 than I relaised before... I guess if I find the time (as if!) I could make a C128 port of CP/M 2.2. It might not be practical, but I think it would be educational. |
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Post by hydrophilic on Jan 22, 2016 8:40:41 GMT
It seems you can't use the words COMMAND [dot] COM nor CMD [dot] EXE when posting to this forum... wow, if your server is so lame it can be crashed with a simple HTML POST, you probably shouldn't be on the web  [Philosophy]You know computer have taken over the world when they won't allow humans to discuss them. [/Philosophy] |
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Post by trainmaster on Jan 22, 2016 10:04:03 GMT
Thanks for some interesting one on one on CP/M Hydrophilic |
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