Re: byte vs word movs

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#7213

From: Arthur Rubin
Date: Fri, 21 Jun 1991 15:45

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In <1991Jun21.031758.11264@cs.mcgill.ca> storm@cs.mcgill.ca (Marc WANDSCHNEIDER) writes:


>Given the following code:

>DATA_SEG   SEGMENT PUBLIC
>     PUBLIC SECTOR
>SECTOR    DB 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22
>DATA_SEG   ENDS

>Why is the following instruction illegal.... (assuming BX has the value 4)

>MOV  DX, SECTOR[BX]

You need :
MOV  DX, WORD PTR SECTOR[BX] ; the assembler knows that SECTOR is a byte address.
--
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My opinions are my own, and do not represent those of my employer.

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References: <1991Jun21.030948.10951@cs.mcgill.ca> <1991Jun21.031758.11264@cs.mcgill.ca>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!orion.oac.uci.edu!beckman.com!dn71!a_rubin
From: a_rubin@dsg4.dse.beckman.com (Arthur Rubin)
Newsgroups: comp.os.msdos.programmer
Subject: Re: byte vs word movs
Message-ID: <a_rubin.677519140@dn71>
Date: 21 Jun 91 15:45:40 GMT
References: <1991Jun21.030948.10951@cs.mcgill.ca> <1991Jun21.031758.11264@cs.mcgill.ca>
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