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org 000h
ljmp main
org 013h
ljmp i_int1
org 050h
main: mov sp,#60h
mov tcon,#00000100b
mov ie,#10000100b
mov 30h,#0
mov 31h,#0
sjmp $
i_int1: mov a,#1
add a,30h
mov 30h,a
clr a
addc a,31h
mov 31h,a
acall work
acall dir
reti
work: ;
ret
dir: ;
ret
end

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