8085 Programming

Program to ADD the 8-bits N numbers stored sequentially from m/m location 0001H, the value of N being stored at 0000H if D₆ is 1

LXI H, 0000H

MOV B,M

XRA A

MOV D,A ; To store the sum

MOV E,A ; To store the carry

INX H ; Pointing to the first 8-bit number

LOOP: MOV A,M

ANI 40H ****

CPI 40H

JNZ SKIP

MOV A,M

ADD D

MOV D,A

JNC SKIP

INR E

SKIP: INX H

DCR B

JNZ LOOP

LXI H, 2000H

MOV M,D ; Store the sum at 2000H

INX H

MOV M,E ; Store the carry at 2001H

RST5

****

D₇D₆D₅D₄D₃D₂D₁D₀

40H 0 1 0 0 0 0 0 0 AND operation

0 1 0 0 0 0 0 0 40H