Re: Software for MS-DOS 1.25

From: Michał Pleban <*lists_at_michau.name*> Date: Sun, 15 Oct 2017 17:58:46 +0200 Message-ID: <59E385B6.9090208@michau.name> · lists_at_michau.name

Hello!

Baltissen, GJPAA (Ruud) wrote:

> I only can tell you this: the XT BIOSes I am familiar with, including IBM, only support up to AH = 5 (to be honest, I only just found out). This means that 6 and higher HAVE to be added by DOS.

That leaves us with a fundamental question - how exactly does MS-DOS
know what kind of disk drives are attached to the system? We need to
replicate  this so that DOS uses correct geometry when accessing floppies.

Regards,
Michau.

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