Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!sun-barr!olivea!uunet!mcsun!unido!horga!veeble!fiction!Daniel_Roedding
From: Daniel_Roedding@fiction.ms.sub.org
Newsgroups: comp.sys.atari.st
Subject: hdv_init (0x46A)
Message-ID: <52869@fiction>
Date: 24 Mar 91 04:41:10 GMT
Lines: 18
X-Attributes: type 2, from 100, acclv 0, expires

hase@netmbx.UUCP (Hartmut Semken) writes:

(... about Floprate() ...)

> This is true if You want to set different seek rates for both drives.
> If You want to set both drives to te same seek rate, place the new seek
> rate in adress 0x440 (zero: six, 1: 12, 2: 2, 3: 3 milliseconds) and
> call the function pointed to by the vector in adress 0x46A (hdv_init).
> This will make new Bios parameter blocks for both drives and tel TOS to
> use the new seek rate.
> Works on all TOS versions, cause it uses only documented system
> variables.

Yes, but it also tries to execute the boot sectors of drives A and B. Fur-
termore, the routine is *very* slow if just one drive is attached (needs
more than one second).

Daniel