定时器延时 汇编 流水灯

以下是基于8086汇编语言的定时器延时和流水灯程序：

.model small
.stack 100h
.data
.code

org 100h

delay macro time
    mov cx, time
    l1: mov dx, 0FFFFh
    l2: dec dx
        jnz l2
    loop l1
endm

main proc
    mov ax, @data
    mov ds, ax

    mov al, 10000000b
    mov bl, 00000001b

    mov cx, 8

    l1: mov ah, al
        mov dl, bl
        mov ah, al
        mov dl, bl
        mov ah, al
        mov dl, bl
        mov ah, al
        mov dl, bl
        mov ah, al
        mov dl, bl
        mov ah, al
        mov dl, bl
        mov ah, al
        mov dl, bl

        delay 5000

        mov ah, al
        mov dl, 00h
        mov ah, al
        mov dl, 00h
        mov ah, al
        mov dl, 00h
        mov ah, al
        mov dl, 00h
        mov ah, al
        mov dl, 00h
        mov ah, al
        mov dl, 00h
        mov ah, al
        mov dl, 00h
        mov ah, al
        mov dl, 00h

        delay 5000

        shr al, 1
        shl bl, 1

        loop l1

    mov ah, 4ch
    int 21h
main endp

end main

这个程序实现了一个基本的流水灯效果，使用了定时器延时来控制灯的闪烁速度。