Assembly Code for Block Transfer in 8051 - AT89c51


Flow Chart:-


Program :-

ORG 0000H
MOV R1,#50H
MOV DPTR,#2000H
CLR A
MOVX A, @DPTR
MOV R2,A
MOV R3, A
INC DPTR
LOOP 1:MOVX A,@DPTR
Mov @R1,A
INC DPTR
INC R1
DJNZ R2, LOOP1
MOV R1,#50H
MOV DPTR,#2050H
LOOP2: MOV A, @R1
MOVX DPTR,A
INC DPTR
INC R1
DJNZ R3, LOOP2
SJMP $
END

Output:-



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