2_4.txt

This are the Laboratory programs for the 89c51

;FIND MIN MAX FROM ARRAY IN EXT LOC
ORG 0000H
MOV DPTR, #2000H																						   
MOV R1,#05H
AAA:
MOVX A,@DPTR
MOV R0,A
CJNE A,40H,XXX
SJMP ZZZ
XXX:
JC ZZZ
MOV 40H,R0
ZZZ:
INC DPTR
DJNZ R1,AAA
MOV DPTR, #2000H																						   
MOV R1,#05H
PPP:
MOVX A,@DPTR
MOV R2,A
CJNE A,41H,QQQ
SJMP RRR
QQQ:
JNC RRR
MOV 41H,R2
RRR:
INC DPTR
DJNZ R1,PPP
END