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Index > DOS > add x, y ... Where is the result stored?

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Steve



Joined: 10 Sep 2005
Posts: 10
Steve 10 Sep 2005, 23:11
I've been looking at a tutorial that shows (http://www.decard.net/article.php?body=tajga&chapter=07) :

mov ax,5
mov bx,5
add bx,[five]
add ax,bx
;here ax contains 15, bx contains 10
five dw 5

Where exactly is it stored? Am I so close I can't see the answer?
Post 10 Sep 2005, 23:11
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veach1



Joined: 16 Jul 2004
Posts: 165
veach1 11 Sep 2005, 06:31
add destination, source
Logic: destination <- destination + source
So add ax,bx would be as: addition of ax and bx and result is placed in ax
Like in C: a=a+b
Post 11 Sep 2005, 06:31
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid 11 Sep 2005, 08:58
yup, "add ax,bx" is more like "ax += bx", most instructions take paramater in order that first is destination, and second is source, source usually remains unmodofied
Post 11 Sep 2005, 08:58
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