64k CP/M?

General discussions related to the Altair 8800 Clone

64k CP/M?

Postby toml_12953 » November 7th, 2014, 12:19 pm

I'm at work right now so I can't try it but a thought occurred to me. With the Turnkey board active, would it be possible to SYSGEN a 64K CP/M system rather than "waste" 1K with a 63K system?

Tom L
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Re: 64k CP/M?

Postby AltairClone » November 7th, 2014, 5:25 pm

Tom,

Yes, you are correct. Boot with the Turnkey module enabled and run MOVCPM (or MOVCPM8 if your running version 2.2b). You'll see it creates a 64K build of CP/M.

Mike
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Re: 64k CP/M?

Postby toml_12953 » November 9th, 2014, 3:08 pm

AltairClone wrote:Tom,

You'll see it creates a 64K build of CP/M.

Mike


Oh yeah? When it boots, CP/M now says

00k CP/M

:) It's just cosmetic, though. I have 30K available in MBASIC so I know CP/M is using the whole 64k.
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Re: 64k CP/M?

Postby AltairClone » November 10th, 2014, 9:46 pm

Interesting! I've run MOVCPM before and verified it says it's building a "64K" CP/M, but I've never then SYSGEN'd that to disk and seen what the cold boot message shows.

Mike
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