Path: utzoo!attcan!uunet!van-bc!
From: lphillips@lpami.wimsey.bc.ca (Larry Phillips)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Device driver from device name?
Message-ID: <2055@lpami.wimsey.bc.ca>
Date: 27 Sep 90 11:46:40 GMT
Lines: 38
Return-Path: <lpami!lphillips>
To: van-bc!rnews

In <14697@cbmvax.commodore.com>, jesup@cbmvax.commodore.com (Randell Jesup) writes:
>In article <1980@lpami.wimsey.bc.ca> lphillips@lpami.wimsey.bc.ca (Larry Phillips) writes:
>>          lea	    namesave,A0         ; point at name buffer
>>          sub.l   loopreg,loopreg
>>          move.b  (a1)+,loopreg       ; gets BSTR length
>>          sub.l   #1,loopreg          ; adjust for loop
>>3$        move.b  (a1)+,(a0)+         ; get the actual name
>>          dbra    loopreg,3$
>>          move.b  #':',(a0)+          ; tack a colon onto the end
>>          move.b  #0,(a0)+            ; and null terminate it
>
>	Note that entries on the Dos Device list do NOT have ':'s following
>them (they are BSTR names followed by a null byte).

Right.. that's why I tack one on there when I save the name for printing to the
screen.

>	Also, before examining the startup field, etc, you must check that
>the node is of type DLT_DEVICE.

Good idea. I'll do that next time I need to use the code.

>  Also you must handle Startup values that
>are NOT pointers - for example, SER:, PAR:, PRT: take small integers there.

Hmm... never noticed that, but then I wasn't looking. I'm a little puzzled as
to what the 'small integers' do.

-larry

--
It is not possible to both understand and appreciate Intel CPUs.
    -D.Wolfskill
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|   //   Larry Phillips                                                 |
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