Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watmath!clyde!rutgers!super.upenn.edu!dsl.cis.upenn.edu!catone
From: catone@dsl.cis.upenn.edu.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: Secondary command processor w/Turbo
Message-ID: <1154@super.upenn.edu.upenn.edu>
Date: Wed, 6-May-87 15:57:26 EDT
Article-I.D.: super.1154
Posted: Wed May  6 15:57:26 1987
Date-Received: Fri, 8-May-87 01:32:26 EDT
References: <3509@gitpyr.gatech.EDU> <27@b.gp.cs.cmu.edu>
Sender: root@super.upenn.edu.upenn.edu
Reply-To: catone@dsl.cis.upenn.edu.UUCP (Tony Catone)
Distribution: na
Organization: University of Pennsylvania
Lines: 16
Keywords: exec, command

In article <27@b.gp.cs.cmu.edu> ralf@b.gp.cs.cmu.edu (Ralf Brown) writes:
> .....
>memory beyond the maximum heap size back to DOS.  Then simply run COMMAND
>by executing an INT 21h function call 4Bh (though you should check first
>to make sure there is enough RAM for COMMAND and whatever you want to do
>from within COMMAND.

Strictly speaking, this is not necessary, since service request 4B hex 
will signal you that there was not enough memory for your program by
setting the carry flag and returning an error code in ax.  All you
really need is a function to translate this code into an appropriate
error message and inform the user.

					- Tony
					  catone@dsl.cis.upenn.edu
					  catone@wharton.upenn.edu