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Program to add the contents of two memory locations

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Statement: Add the contents of memory locations 2000H and 2001H and place the result in the memory locations 2002H and 2003H.

Example:

(2000H) = C3H
(2001H) = 29H
Result = C3H + A9H = 016CH
(2002H) = 6CH
(2003H) = 01H

Program:

LXI H, 2000H                   ; HL points to location 2000H
MOV A, M                        ; Move the contents of 2000H into accumulator
INX H                                ; HL points to location 2001H
ADD M                              ; Add the contents of 2001H with the contents of accumulator
INX H                                ; HL points to location 2002H
MOV M, A                        ; Store the lower byte of result at 2002H
MVI A, 00H                      ; Initialize higher byte result with 00H
ADC A                               ; Add carry in the higher byte result
INX H                                ; HL points to location 2003H
MOV M, A                        ; Store the higher byte of result at 2003H
HLT                                    ; Terminate program execution

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