Program to find the 1's complement of a number

Statement: Find the 1's complement of the number stored at memory location 2000H and store the complemented number at memory location 2001H.

Example:

(2000H) = 34H

(2001H) = CBH

Program:

LDA 2000H              ; Obtain the number from location 2000H

CMA                         ; Complement the number

STA 2001H               ; Store the result at location 2001H

HLT                           ; Terminate program execution