Question

我试图创建一个单词计数器（计算字符串中有多少单词），我使用jmp指令返回WORDCOUNT标签，但问题是它不断循环。当我在jmp WORDCOUNT之前添加ADDCOUNTER时，它会产生无限循环。可能是什么原因造成的？如果有人能向我解释，我真的很感激。：）

; count the number of words in the string
        mov ax, 0000 
        mov bx, 0000 ; will contain the data
        mov cx, 0000 ; will count the number of words
        mov dx, 0000 ; erase all content to 0000
        lea bx, USERSTRING ; bx will contain the user string input
WORDCOUNT:
        mov al, [bx] ; al will contain bx data inside
        cmp al, "$" ; check if it is the end of the string already
        je ENDWORDCOUNT ; get out of the loop if done
        cmp al, " " ; if the value has space 20h
        je ADDCOUNTER ; then go to ADDCOUNTER to add
        inc bx ; hop to the next address one at a time
        jmp WORDCOUNT
    ADDCOUNTER:
            inc cx ; add cx with 1 because it means there is space
            jmp WORDCOUNT

ENDWORDCOUNT:
        call TODECIMAL
        mov cx, ax ; ax transfers the decimal version here
        mov word ptr HOWMANYWORDS, cx ; this one will be turned into a decimal dude help me here huhuhu
        lea dx, HOWMANYWORDS
        call PRINTF

Answer 1

当你找到空格字符时，你会跳到ADDCOUNTER，在那里你增加cx而不是bx，所以一旦跳回到WORDCOUNT你就会成为inc bx永远地读同一个角色（即空间），等等您ADDCOUNTER案件中也需要{{1}}。

当我试图制作一个单词计数器时，无限循环

1 个答案: