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MicroProcessor Simulator

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Boom2k

Programmer
Nov 28, 2006
3
GB
Hi guys,

I'm in the process of learning assembly using this popular free simulator, I'm doing a piece of work that outputs ASCII to the VDU however I'm trying to perform some multiplication with MUL but have a problem

I have the value 6 stored in the AL register along with the value 3 in the BL register.

I'm trying to multiply this so I get 18 in the AL register with:

MUL al, bl

The returned value is 12, if I change the BL register value to 4, it does return 18 but isnt 3 X 6 = 18?, why will ASM only return 18 if I multiply by 4?
 
thanks, me not thinking was expecting a result of that in denary/decimal. I was subject to some jokes lol, my bad thanks for the reply.
 
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