2.1表格打印字符.asm

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;表格形式打印字符
;********************************************
CODES SEGMENT
    ASSUME CS:CODES
    main proc far
START:
    push ds
    xor ax,ax
    push ax
    ;
    mov dl,10h
    mov bh,15
a:
    mov cx,16
b:
    call disp 
    call null 
    inc dl
    loop b
    call crlf
    dec bh
    cmp bh,0
    jnz a
    ret
    main endp
    ;------------------------------------------
    disp proc near
    mov ah,02h
    int 21h
    ret
    disp endp
    ;------------------------------------------
    null proc near
    push dx
    ;
    mov ah,02h
    mov dl,0h
    int 21h
    ;
    pop dx
    ret
    null endp
    ;------------------------------------------
    crlf proc near
    push dx
    ;
    mov ah,02h
    mov dl,0dh
    int 21h
    mov ah,02h
    mov dl,0ah
    int 21h
    ;
    pop dx
    ret
    crlf endp
    ;-------------------------------------------
CODES ENDS
    END START