Re: CBM's CP/M, Z-80 carts for the 64

From: Anders Carlsson <>
Date: Thu, 20 Dec 2012 08:29:30 +0100
Message-ID: <C8F4784BD1224391944D10ED14DF2BE1@ryds>
Bil Herd wrote:

> So while it was known that [some] 257's didn't work well

Am I understanding this correct that whether a C64 (or C128, or other C64 
related computer) will operate with the CP/M Z80 cartridge to a big part is 
due to which vendor(s) of the 257's and perhaps other 74 series chips are 
installed in the computer? If so, those who have the cartridge and a 
selection of machines could try to verify if it generally holds true. In the 
rare case those chips are socketed, perhaps they could be substituted for 
another brand if a dog slow, 40 column CP/M or other Z80 application is 
desired to run on a C64 in the 21th century.

Best regards

Anders Carlsson

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Received on 2012-12-20 08:00:17

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