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Text File  |  1986-01-01  |  256 b   |  7 lines
  1. keychk:
  2.     mov    ah,0Bh
  3.     int    21h        ; key test function
  4.     cmp    al,0FFh        ; has it been key'd ?
  5.     je    main4        ; all done
  6.     jmp    keychk        ; no key ... try again
  7.