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Finding one's complement of a number

Statement: Find the l's complement of the number stored at memory location 4400H and store the complemented number at memory location 4300H.

Sample problem:

(4400H) = 55H

Result = (4300B) = AAB

Source program:

LDA 4400B : Get the number

CMA : Complement number

STA 4300H : Store the result

HLT : Terminate program execution

Flowchart

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Finding one's complement of a number