Re: Software for MS-DOS 1.25

From: Michał Pleban <*lists_at_michau.name*> Date: Mon, 09 Oct 2017 16:42:53 +0200 Message-ID: <59DB8AED.1090104@michau.name> · lists_at_michau.name

Michał Pleban wrote:

> Theoretically, it could work. The video memory at $Bxxxx would wrap into
> main memory at $3xxxx. 

Well, looks like I was too quick. I was sure that the memory wraps, but
it doesn't. So $B0000 is an empty space, not a map of $30000.

This is both bad news and good news. Bad because it means that
software-only solution is not possible, good because it makes hardware
solution much easier.

Regards,
Michau.

       Message was sent through the cbm-hackers mailing list