汇编语言编写一个程序,实现十进制、十六进制和二进制之间的转换

2025-01-20 01:10:43
推荐回答(2个)
回答1:

        CODE  SEGMENT
              ASSUME    CS:CODE
        STRR  DB        18
       STRRN  DB        ?
       STRRS  DB        18 DUP(?)
              
      START:  PUSH      CS
              POP       DS
              PUSH      CS
              POP       ES
              CALL      INPUT
              CALL      LFCR
              CALL      LFCR
              MOV       BX,10
              CALL      DSPAXX
              CALL      LFCR
              MOV       BX,16
              CALL      DSPAXX
              CALL      LFCR
              MOV       BX,2
              CALL      DSPAXX

              MOV       AH,4CH
              INT       21H
;================================
       INPUT  PROC      NEAR
              PUSH      BX
              PUSH      CX
              PUSH      DX
              PUSH      SI
              PUSH      DI
              PUSH      BP
              PUSHF
              MOV       AH,0AH
              LEA       DX,STRR
              INT       21H
              LEA       SI,STRR
              MOV       CL,[SI+1]
              XOR       CH,CH
              ADD       SI,2
              CMP       BYTE PTR[SI],'B'
              JE        @B
              CMP       BYTE PTR[SI],'H'
              JE        @H
              CMP       CX,5
              JBE       @1
              MOV       CX,5
         @1:
              MOV       AX,0
         @2:
              SHL       AX,1
              MOV       BX,AX
              SHL       AX,1
              SHL       AX,1
              ADD       AX,BX
              MOV       BL,[SI]
              AND       BL,0FH
              XOR       BH,BH
              ADD       AX,BX
              INC       SI
              LOOP      @2
              JMP       @IEND
         @B:
              DEC       CX
              INC       SI
              CMP       CX,16
              JBE       @B1
              MOV       CX,16
        @B1:
              MOV       AX,0
        @B2:
              SHL       AX,1
              MOV       BL,[SI]
              AND       BL,1
              XOR       BH,BH
              ADD       AX,BX
              INC       SI
              LOOP      @B2
              JMP       @IEND
         @H:
              DEC       CX
              INC       SI
              CMP       CX,4
              JBE       @H1
              MOV       CX,4
        @H1:
              MOV       AX,0
        @H2:
              SHL       AX,1
              SHL       AX,1
              SHL       AX,1
              SHL       AX,1
              MOV       BL,[SI]
              CMP       BL,'9'
              JBE       @H3
              SUB       BL,7
        @H3:
              AND       BL,0FH
              XOR       BH,BH
              ADD       AX,BX
              INC       SI
              LOOP      @H2
      @IEND:
              POPF
              POP       BP
              POP       DI
              POP       SI
              POP       DX
              POP       CX
              POP       BX
              RET
       INPUT  ENDP
;================================  
     ; 输出ax的值,输出的进位制在bx中设定,bx=2~16  
      DSPAXX  PROC      NEAR
              PUSH      AX
              PUSH      BX
              PUSH      CX
              PUSH      DX
              PUSHF
              XOR       CX,CX
              ; MOV       BX,16
  @DSPAXX_1:
              XOR       DX,DX
              DIV       BX
              INC       CX
              OR        DX,30H
              PUSH      DX
              CMP       AX,0
              JNE       @DSPAXX_1
              MOV       AH,2
 @DISPAXX_2:
              POP       DX
              CMP       DL,3AH
              JB        @DISPAXX_3
              ADD       DL,7
 @DISPAXX_3:
              INT       21H
              LOOP      @DISPAXX_2
              MOV       DL,32
              INT       21H
              POPF
              POP       DX
              POP       CX
              POP       BX
              POP       AX
              RET
      DSPAXX  ENDP
;===============================
        LFCR  PROC      NEAR
              PUSH      AX
              PUSH      DX
              MOV       AH,2
              MOV       DL,13
              INT       21H
              MOV       DL,10
              INT       21H
              POP       DX
              POP       AX
              RET
        LFCR  ENDP
;================================= 
       DSPAX  PROC      NEAR
              PUSH      AX
              PUSH      BX
              PUSH      CX
              PUSH      DX
              PUSHF
              XOR       CX,CX
              MOV       BX,10
    @DSPAX1:
              XOR       DX,DX
              DIV       BX
              INC       CX
              OR        DX,30H
              PUSH      DX
              CMP       AX,0
              JNE       @DSPAX1
              MOV       AH,2
   @DISPAX2:
              POP       DX
              INT       21H
              LOOP      @DISPAX2
              MOV       DL,32
              INT       21H
              POPF
              POP       DX
              POP       CX
              POP       BX
              POP       AX
              RET
       DSPAX  ENDP
;==================================       
        CODE  ENDS
              END       START

回答2:

人物图(版本三)人物图(版本三)(7)

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