ajp166 at bellatlantic.net
Sun Sep 16 13:37:05 CDT 2007
>Subject: RE: Kaypro movcpm.com
> From: "Chuck Guzis" <cclist at sydex.com>
> Date: Sat, 15 Sep 2007 09:50:08 -0700
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>On 15 Sep 2007 at 6:49, dwight elvey wrote:
>> My understanding of movcpm.com is that it needs to be the
>> exact one that comes with that version. I beleive it has
>> tables of addresses to replace.
>Just so. Since MOVCPM contains a copy of CP/M itself, said copy also
>contains a serial number, which must match the one of the system
>you're executing MOVCPM on. If you've got a debugger, the point
>where the check is made is easy to find and disable, however.
I don't know about a copy of CP/M but it does ahve a table of all
the addresses inside CP/M (CCP, BDOS and BIOS)that get relocated.
If the system and MOVCPM are from differnt systems (say kayII and
a 4/84) it's very likely the BIOS varies enough that the BIOS
will get mashed. The serial numbmer (besides copyright) was to keep
the two matched or prevent a mess.
>Part of DRI's OEM agreement was that each copy of CP/M had to be
There is that but it's a seperate issue.
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