What is a Sirius?

From: Peter Pachla <peter.pachla_at_vectrex.freeserve.co.uk>
Date: Sat Jul 10 18:10:06 1999

Hi Tony,

>....The only firmware on the disk controller board is the GCR
>encoder/decoder ROM and the microcontroller for the spindle
>motors. Neither of those would change for DS drives. And I'm
>not suprised that the boot ROM will boot a DS drive either.

Quite, IIRC when you're using DS drives the system treats each side of the disc
as a separate drive. So in a dual floppy machine you'd have drives A through D
(A/C and B/D) - under DOS anyway.

  TTFN - Pete.

Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla_at_virgin.net                   |
peter.pachla_at_vectrex.freeserve.co.uk      |
peter.pachla_at_wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
Received on Sat Jul 10 1999 - 18:10:06 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:32:11 BST