ORG 0000H
LJMP MAIN
ORG 0030H
MAIN:
MOV TMOD,#00H
MOV TH1,#(8192-5000)/32;
MOV TL1,#(8192-5000)%32;
SETB TR1
MOV R2,#20
LOOP:
JB TF1,$
MOV TH1,#(8192-5000)/32;
MOV TL1,#(8192-5000)%32;
CLR TF1
DJNZ R2,LOOP
CPL P1.0
MOV R2,#20
SJMP LOOP
END
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