SORTED DIRECTORY LIST 3.2

 SDL [d:][path][filename[.ext]][/options]

 Options:   General
		 E	erase screen
		 P	pause when screen full
		 W	4 column format (2 if width 40)
	    Sort options (sort on filename.ext is the default)
		 N	do not sort entries
		 S	sort by file size
		 D	sort by date and time
		 X	sort by file type (ext)
	    Sub-directories
		 T	list sub-directory names
		 F	use with T to list file names by directory
		 I	use with TF to indent file lists (not supported on
			width 40 screens)
		 A	use with T to list all file names together

 Default:   *.* sorted by name.ext, 2 cols wide (1 on width 40 screen), no
	    screen erase or pause at end of page, using current directory.

 Notes:
    1. Path specifications:
       a. paths must end with \.
       b. specifying a leading \ starts the path search at the root directory.
	  No leading \ will start the path at the current directory.
       c. not specifying a path starts the operation at the current directory.
    2. The space used by sub-directories is not accounted for.
    3. Directory listings do not include the '.' or '..' entries.
    4. The specified filename.ext may include ? and/or *.

 Output formats:   Width 80 - 2 or 4 columns   (option TFI - 1 or 2 columns)
		   Width 40 - 1 or 2 columns

 Filename in listing may be preceeded by one of the following char.:
		r - read-only file
		h - hidden file
		s - system file
		\ - sub-directory name
    If a file has more than 1 attribute, only the last is shown.

 Written by W. C. Bodycomb
	    Version 1.0 - original version, runs under DOS 1.0 and 1.1
	    Version 2.0 - support for DOS 2.0, runs under DOS 1.0, 1.1, 2.0
	    Version 3.0 - support for paths and sub-directories, runs under
			  DOS 2.0.  
	    Version 3.1 - Sort in descending order for date and file size 
	    options.  Make file extension ".*" by default.  Fix MASM 3 errors. 
	    Reversed test for 80 column display because some MS-DOS systems do 
	    not use the fixed address that PC-DOS does. Print the directory 
	    name instead of "<curr>". Ted Shapin.  Nov. 21, 1985.
	    Version 3.2 - DOS 4.0 supports disks of more than 32 megabytes so
	    sector count was causing a divide overflow. Aug. 24, 1988.