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  Include:   DOS.INC
 
  Syntax:    @GetBlock paragraphs [, retry]
 
  Summary:   Allocates a block of memory
 
  Argument:  <paragraphs>     Paragraphs (16 bytes) of memory wanted
             <retry>          If nonzero, allocate largest block
                              available
 
  Returns:   AX     If carry: clear, the segment of the allocated
                    memory. If carry: set, an error code
             BX     Paragraphs actually allocated. If <retry> is not
                    zero, it may be less than requested.
 
  Modifies:  AX, BX
 
  See also:  Int 21h Function 48h, @FreeBlock, @ModBlock
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