Re: Mysterious IEEE device #5

From: William Levak <wlevak_at_SDF.ORG>
Date: Thu, 12 Oct 2017 04:44:40 +0000 (UTC)
Message-ID: <Pine.NEB.4.64.1710120442350.27243@sdf.lonestar.org>
Actually, disk drives can be any device number from 4 thru 31. To get the 
unusual device numbers, you must set it in software.


On Thu, 12 Oct 2017, MichaÅ~B Pleban wrote:

> Hello!
>
> Disassembling the 6509 code for the 8088 card, I found three functions
> callable form the 8088:
>
> 13 - write character to device #4 (with exception for character 0A)
> 14 - write character to device #5
> 15 - read character from device #5
>
> I was always under impression that devices #4 and #5 are printers. But
> then, what are we supposed to read from the printer? What this
> mysterious device #5 could be?
>
> Regards,
> Michau.
>
>       Message was sent through the cbm-hackers mailing list
>

wlevak@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org

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Received on 2017-10-12 05:00:02

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