8085 PROGRAM TO EXCHANGE THE CONTENT OF MEMORY LOCATIONS 2000H AND 2001H

LDA 2000H
MOV B,A
LDA 2001H
STA 2000H
MOV A,B
STA 2001H
HLT

OR

LXI H 2000H
LXI D 2001H
MOV B,M
LDAX D
MOV M,A
MOV A,B
STAX D
HLT

                                      OUTPUT

                                       Input

Output