升序排序.asm

基于8086汇编程序

CODE SEGMENT
  ASSUME CS:CODE
  BEGIN: PUSH CS
         POP DS
         PUSH CS
         POP ES
         MOV DI,2000H
         CLD
         MOV AL,-12
         STOSB
         MOV AL,12
         STOSB
         MOV AL,25
         STOSB
         MOV AL,9
         STOSB
         MOV AL,-1
         STOSB
         MOV AL,3
         STOSB
         MOV AL,8
         STOSB
         MOV AL,98
         STOSB
         MOV AL,18
         STOSB
         MOV AL,20
         STOSB
         MOV AL,-30
         STOSB
         MOV AL,-5
         STOSB
         MOV AL,-7
         STOSB
         MOV AL,45
         STOSB
         MOV AL,3
         STOSB
         MOV AL,5
         STOSB
         MOV AL,11
         STOSB
         MOV AL,37
         STOSB
         MOV AL,-38
         STOSB
         MOV AL,-12
         STOSB       
         MOV CX,20
         XOR AX,AX      ;初始化AX
         XOR DX,DX      ;初始化DX
  DONE1: DEC CX     
         MOV DX, CX     ;保护CX的值
         MOV SI,2000H
         XOR BX,BX      ;清外循环标志
         CLD
  DONE2: LODSB          ;开始排序
         CMP AL,[SI]
         JLE DONE3
         XCHG AL,[SI]   ;交换顺序
         MOV [SI-1],AL
         INC BL         ;设外循环标志
  DONE3: LOOP DONE2     ;继续内循环，排序
         MOV CX,DX      ;恢复CX的数值
         CMP BL,0       ;判断排序是否完成
         JNZ DONE1
              
              
;==========将2000H单元的数据存入2100H==============
         MOV CX,20
         MOV DI,2100H
         MOV SI,2000H
         CLD
  DONE4: MOVSB
         DEC CX
         JNZ DONE4  
            
    CODE ENDS
      END BEGIN