以下程序已实际调试运行通过)
; ---AT89C2051加氧泵控制器源程序-OK!
org 0000h
ajmp main
nop
org 01bh
clr tr1
ajmp timon
org 30h
main:mov 40h,#00h
mov 41h,#00h
mov 42h,#00h
mov 43h,#02h
mov 44h,#00h
mov 45h,#00h
mov 46h,#00h
mov 4ah,#02h
mov 4bh,#00h
mov 4ch,#01h
mov 4dh,#05h
nca equ 48h
ncb equ 49h
mov p3,#0ffh
mov sp,#50h
mov tmod,#10h
mov ie,#88h
mov tl1,#46h
mov th1,#76h
clr nca
clr ncb
setb tr1
clr p3.7
disp:;------显示-------
mov r3,46h
cjne r3,#1,ct
mov dptr,#tab
clr p3.2
mov a,42h
movc a,@a+dptr
anl p1,#01h
orl p1,a
jb ncb,xsb
setb p3.3
lcall ms10
xsb: acall key
clr p3.3
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