Question

Write an assembly Language Program to multiply the content of 2000H by the content of 2001 H. Store the 16-bit result in the memory location 2010 H and 2011 H.​

Answer 1

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Answer 2

Explanation:

Assumption –

Starting address of program: 2000

Input memory location: 2050, 2051, 2052, 2053

Output memory location: 2054, 2055, 2056, 2057

Algorithm –

Load the first data in HL pair.

Move content of HL pair to stack pointer.

Load the second data in HL pair and move it to DE.

Make H register as 00H and L register as 00H.

ADD HL pair and stack pointer.

Check for carry if carry increment it by 1 else move to next step.

Then move E to A and perform OR operation with accumulator and register D.

The value of operation is zero, then store the value else goto step 3.