BLINKER CACHE XMS
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  Purpose : Specify amount of XMS to be used for overlay caching

  Syntax  : BLINKER CACHE XMS niMax[%], niMinLeave[%]

  Default : 0,100%


  Example :  # use a maximum of 50% of available XMS,
             # but leave at least 1024KB available
             BLINKER CACHE XMS 50%, 1024


  Example : # use a maximum of 512KB XMS,
              # but leave at least 25% of the total free

              BLINKER CACHE XMS 512, 25%

  This command specifies the amount of XMS (2.0 and higher) memory to be
  used for the overlay cache.

  Two numeric parameters are used to specify the amount of XMS memory to
  be allocated, and the amount to be left for program use. Both parameters
  may be specified as either a number of kb, or as a percentage of the
  total available XMS.

  XMS memory to be used for the cache will be allocated by the overlay
  manager prior to any user code being executed. Blinker will never
  allocate a cache that is larger than the total size of all the
  overlays contained within the program, which can be determined by
  examining the MAP file - the total figure can be found following the
  list of overlaid sections in the map file.