misc.a51

我实验板带的实验程序

    public _Delay

    ;------------------------------------------

    MiscAsmCodeSeg segment code
    rseg MiscAsmCodeSeg

_Delay:
    ; Delay time equal 0.5 * r7 second

    mov r2, #50
loop1:
    mov r3, #100
loop2:
    mov r4, #50
    djnz r4, $
    djnz r3, loop2
    djnz r2, loop1
    djnz r7, _Delay
    ret

    end