汇编一点点提高5

;汇编一点点提高5——编写一个程序实现将数据段中存储在STRING处到NUM处的字符串进行分类统计，然后将结果存入以lett;er、digit和other为名的存储单元中，并以十进制显示出来
DATAS SEGMENT
    ;此处输入数据段代码 
    string db '12ABCDE#3aaaa 456789143!@Y(78)=(1)' 
    len equ $-string
    string1 db 'letter=$'
    string2 db 'digit=$'
    string3 db 'other=$'
    letter db 0
    digit db 0
    other db 0
DATAS ENDS

STACKS SEGMENT
    ;此处输入堆栈段代码
STACKS ENDS

CODES SEGMENT
    ASSUME CS:CODES,DS:DATAS,SS:STACKS
START:
    MOV AX,DATAS
    MOV DS,AX
    ;此处输入代码段代码
    lea bx,string
    mov cx,len
bagin:
    mov ax,[bx]
    cmp al,30h           
    jb lower                   ;比0小就跳到lower
    cmp al,39h
    ja higher                   ;比9大就跳到higher
    jmp digit1
    
lower:
    cmp al,20h
    ja other1
    jmp over
    
higher:
    cmp al,41h               ;比A小就跳到oher1
    jb other1                   
    cmp al,5ah                 ;比Z大就跳到higher1
    ja higher1
    jmp letter1
    
higher1:
    cmp al,61h
    jb other1                 ;比a小就跳到oher1
    cmp al,7ah
    ja other1                  ;比z大就跳到higher1
    jmp letter1
    jmp over
    
digit1:                ;数字加1
    inc digit
    jmp over
    
letter1:                  ;字母加1
    inc letter
    jmp over
    
other1:                 ;其他加1
    inc other
    jmp over
over:
    inc bx
    loop bagin
     
show:                   ;显示
    lea dx,string1
    mov ah,9
    int 21h
    xor ax,ax           ;等价于mov ax，0；将ax初始化为0
    mov al,letter
    call display
    call newline
    
    lea dx,string2
    mov ah,9
    int 21h
    xor ax,ax
    mov al,digit
    call display
    call newline
    
    lea dx,string3
    mov ah,9
    int 21h
    xor ax,ax
    mov al,other
    call display
    call newline    
    MOV AH,4CH
    INT 21H

newline proc near   ;输出换行子程序
    mov ah,2
    mov dl,13
    int 21h
    mov ah,2
    mov dl,10
    int 21h
    ret
newline endp

display proc near  ;输出十进制数子程序
    push bx
    mov bl,10         ; 执行ax/bl，al存放商，ah存放余数
    div bl
    push ax
    mov dl,al          ;输出十进制十位
    add dl,30h
    mov ah,2
    int 21h
    pop ax
    mov dl,ah           ;输出十进制个位
    add dl,30h
    mov ah,2
    int 21h
    pop bx
    ret 
display endp
CODES ENDS
    END START