汇编语言课程设计

发布网友 发布时间：2022-04-21 21:05

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热心网友 时间：2023-09-07 23:50

        CODE  SEGMENT
              ASSUME    CS:CODE

        STR1  DB        'hbgudfywer37865832y8rewhjdfhuiy348hYFYGTSYTD3465FFHDHFJKHJKDSH$'
     LENGTH1  DB        0

      START:  PUSH      CS
              POP       DS
              CALL      COUNT
              MOV       AL,LENGTH1
              CALL      DSPAL
              MOV       AH,4CH
              INT       21H

;===============================
      COUNT:
              LEA       SI,STR1
              CLD
         @1:
              LODSB
              CMP       AL,'$'
              JE        @EXIT
              CMP       AL,'0'
              JB        @1
              CMP       AL,'9'
              JA        @1
              INC       BYTE PTR LENGTH1
              JMP       @1
      @EXIT:
              RET
;===============================
       DSPAL  PROC      NEAR
              PUSH      AX
              PUSH      BX
              PUSH      CX
              PUSH      DX
              PUSHF
              XOR       AH,AH
              XOR       CX,CX
              MOV       BL,10
    @DSPAL1:
              DIV       BL
              INC       CX
              MOV       DL,AH
              XOR       AH,AH
              OR        DX,30H
              PUSH      DX
              CMP       AL,0
              JNE       @DSPAL1
              MOV       AH,2
   @DISPAL2:
              POP       DX
              INT       21H
              LOOP      @DISPAL2
              MOV       DL,32
              INT       21H
              POPF
              POP       DX
              POP       CX
              POP       BX
              POP       AX
              RET
       DSPAL  ENDP
;================================
        CODE  ENDS
              END       START

追问可以给一下注释吗？