Lisa Hansen wrote:
-------------------------------
Hi,
There is a mistake in this program at some point after
the lable XRAM: ,I am trying to copy address 50h thru 
5fh to xram locations 2000h thru 200fh. Any ideas where 
I am going wrong? The program is a kind of 
bubblesort.Thank you.

.ORG 2010H
MOV DPTR,#0010H             
MOV R0,#40H                 
MOV R1,#50H                 
MOV R7,#16                  
GET:CLR A
    MOVC A,@A+DPTR          
    MOV @R0,A               
    MOV @R1,A
    INC DPTR                
    INC R0                  
    INC R1
    DJNZ R7,GET
LOOP1:MOV R7,#15            
      MOV R5,#00H           
      MOV R0,#50H           
LOOP2:MOV A,@R0             
      MOV R6,A              
      INC R0                
      CLR C
      SUBB A,@R0            
      JNC MOVE              
      SJMP COUNT            
MOVE:MOV A,@R0              
     DEC R0                 
     MOV @R0,A              
     MOV A,R6               
     INC R0                 
     MOV @R0,A              
     INC R5                 
COUNT:DJNZ R7,LOOP2
      CJNE R5,#00H,LOOP1    
XRAM:MOV DPTR,#2000H        
     MOV R0,#50H            
     MOV R7,#16             
MOVE2:MOV A,@R0             
      MOVX @ DPTR,A         
      INC R0                
      INC DPTR              
      DJNZ R7,MOVE2
      LJMP 0000
      ;END