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From: a_rubin@dsg4.dse.beckman.com (Arthur Rubin)
Newsgroups: comp.os.msdos.programmer
Subject: Re: clearing registers
Message-ID: <a_rubin.677519077@dn71>
Date: 21 Jun 91 15:44:37 GMT
References: <1991Jun21.030948.10951@cs.mcgill.ca> <1991Jun21.031233.11058@cs.mcgill.ca>
Lines: 20
Nntp-Posting-Host: dn71.dse.beckman.com

In <1991Jun21.031233.11058@cs.mcgill.ca> storm@cs.mcgill.ca (Marc WANDSCHNEIDER) writes:


>Is there any dedicated instruction in the 8088 instruction set that will
>perform a clear on a register or memory location

>ie (a la PDP 11)

>CLR CX
>CLR AH
>CLR MEMORY_LOCATION

>So far, all I've seen is XOR AH,AH; MOV CX, 0; and that's about it.

What's wrong with 
MOV WORD PTR MEMORY_LOCATION, 0
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