Bubble Sort in Assembly 8051

[BRUNO]

 

Hi !

 

I need a help to do a bubble sort in assembly 8051, and the number of the elements of vector is located in R0 , and so far I do this code.

 

 
  $MOD51
  ORG 0

 

ORD:  MOV A,@R0
 
  MOV R7,A

 

  DEC R7

 

  INC R0

 

  MOV B, R0

 

 

 

ROT2:  MOV R0,B

 

  MOV A, R7

 

  MOV R6,A

 

 

 

ROT3:  ACALL COMP
 
  DJNZ R6,ROT3
 
  DJNZ R7,ROT2

 

  RET

 

COMP:  MOV A,@R0
 
  INC R0
 
  CLR C
 
  SUBB A,@R0
 
  JC FIM

 

  XCH A,@R0

 

  DEC R0

 

  XCH A,R0

 

  INC R0

 

  XCH A,@R0

 

  RET
 

 

 

 

FIM: SJMP FIM

 

  END

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