废品程序段(1).txt

用汇编语言实现的程序： 每名学生需要如下描述：班级、学号、姓名、期末成绩、期中成绩、实验成绩、平时成绩。成绩可以有小数

sort          proc
              push bx
              push dx
              push cx
              push ax
              push si
              push di
              
              mov cx,0
              mov cl,snumber2          ;学生数赋值给cx计数用
              dec cx          
     loop1: 
              mov temp,cx
              mov di,0
              mov si,0
              
                 loop2: 
                        mov dx,17
                        mov bx,si
                        
                            loop3:
                                 mov al,student[bx+2]
                                 cmp al,student[bx+22]
                                 jg  swap
                                 inc bx 
                                 dec dx  
                                 jnz loop3
                                 jmp xxxx
                                 
                                        swap:
                                             mov al,resultes[di]
                                             xchg al,resultes[di+3]
                                             mov resultes[di],al
                                             
                                             mov al,resultes[di+1]
                                             xchg al,resultes[di+4]
                                             mov resultes[di+1],al
                                             
                                             mov al,resultes[di+2]
                                             xchg al,resultes[di+5]
                                             mov resultes[di+2],al
                                             
                                                          loop4:
                             				                            mov al,student[bx+2]
                              			                            xchg al,student[bx+22]
                              			                            mov student[bx+2],al
                              			                            inc bx
                              			                            dec dx
                              			                            jnz loop4

             	  xxxx:   add si,20
             	          add di,3
             	          loop loop2				  				
             	
              mov cx,temp
              loop  loop1
              

              pop di
              pop si
              pop ax
              pop cx
              pop dx
              pop bx
							ret
sort          endp