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Wednesday, March 9, 2011

Program that takes two nibbles......

Program that takes two nibbles from 2100H and 2101H and combines to form a byte. The nibbles from 2100 are to be taken as most significant nibble.

To extract a nibble we will use the Anding operation....
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LDA 2100H;
ANI F0;
MOVE B,A;
LDA 2101H;
ANI 0F;
ADD B;
STA 2103H;
HLT;
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