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Encoding:
Assembly Source File  |  1988-08-11  |  503 b   |  17 lines
  1. file1   db      '\WORK\MYFILE.DAT',0
  2. file2   db      '\BACKUP\MYFILE.OLD',0
  3.         .
  4.         .
  5.         .
  6.         mov     dx,seg file1    ; DS:DX = old filename
  7.         mov     ds,dx
  8.         mov     es,dx
  9.         mov     dx,offset file1
  10.         mov     di,offset file2 ; ES:DI = new filename
  11.         mov     ah,56h          ; Function 56H = rename
  12.         int     21h             ; transfer to MS-DOS
  13.         jc      error           ; jump if rename failed
  14.         .
  15.         .
  16.         .
  17.