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From: brian@ut-sally.UUCP (Brian H. Powell)
Newsgroups: net.micro.mac
Subject: Re: A quick question regarding a _Control call in assembly code
Message-ID: <6081@ut-sally.UUCP>
Date: Fri, 24-Oct-86 14:44:23 EDT
Article-I.D.: ut-sally.6081
Posted: Fri Oct 24 14:44:23 1986
Date-Received: Sat, 25-Oct-86 06:18:11 EDT
References: <709@aaec.OZ> <4183@ut-ngp.UUCP> <1969@well.UUCP> <1970@well.UUCP>
Organization: U. Texas CS Dept., Austin, Texas
Lines: 13

In article <1970@well.UUCP>, espen@well.UUCP (Peter Espen) writes:
> 	I cannot find in any of my documantation a description of what a 
> _control call with CScode set to 6 does.

     This is probably driver-dependant, and you don't say what kind of program
you're looking at, so it's hard to infer.  The disk driver, for example, uses a
CSCode of 6 as an instruction to erase the disk.  I don't think that's what
your piece of code was doing, because the CSParam field was not filled in
correctly.  (The disk driver wanted an integer in CSParam.)

Brian H. Powell
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