rec.asm

这是一个用汇编写的8051单片机系统的小车避障程序

            org  0000h
            ajmp  Main
;-------------------------------
            org    0003h
            ajmp   Int0_s
            org    000bh
            ajmp   T0_s

            org    002dh
    Main:   mov   sp, #6fh
            acall   Sysini
            sjmp    $
   Sysini:  mov   tmod, #00000010b
            mov   th0,  #225
            mov   tl0,  #225
            mov   ie,  #10000011b
            setb  it0
            setb  tr0
            ret
;-----------------------------------------
Int0_s:     clr   tr0
            mov   tl0, #225
            clr   p3.7
            clr   Tf0
            setb  tr0
            reti
;-----------------------------------------
T0_s:       clr   tr0
            setb  p3.7
            mov   tl0, #225
            setb  tr0
            reti
;-----------------------------------------------