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Path: utzoo!utcs!mnetor!seismo!nbires!hao!hplabs!hp-pcd!everett
From: everett@hp-pcd.UUCP
Newsgroups: net.micro.pc
Subject: Re: address of environment
Message-ID: <13600014@hpcvla.UUCP>
Date: Wed, 16-Jul-86 14:33:00 EDT
Article-I.D.: hpcvla.13600014
Posted: Wed Jul 16 14:33:00 1986
Date-Received: Fri, 18-Jul-86 05:50:44 EDT
References: <107@eurifb.UUCP>
Organization: Hewlett-Packard - Corvallis, OR
Lines: 15
Nf-ID: #R:eurifb:-10700:hpcvla:13600014:000:634
Nf-From: hpcvla!everett    Jul 16 10:33:00 1986

The environment strings are stored in an area which is aligned on a paragraph
boundary (a multiple of 16 bytes).  The PARAGRAPH address (i.e. the segment)
of the current environment can be found by loading the WORD at offset 2c (hex)
in your code segment.  For example, at the beginning of your program, you 
could:

             mov	di,2ch     ; pointer to envirnment address
            mov        es,cs:[di] ; set extra segment pointing to env
             xor       di,di      ; set offset to beginning of env

At this point, es:[di] points to the first byte of your environment.

Everett Kaser
Hewlett-Packard Co.
Corvallis, OR