Development history of FDXMS:

What's up with the version numbers this time? Wait and see (perhaps
guess?).


Version 0.7.Pocket - 2001-07-10 - Martin Strmberg

- Correct lookup of variable 'bios'. I inadvertently happened to use
	the bios without the BIOS argument (cs: override was missing).
- Added a call to INT15 AX=0xe801 to detect more memory.
- Merged lock and used bytes, so bookkeeping size is now down to five. 
- Simplified and corrected xms_query_free_xms.
- Move some of the initialisation of the handle table to initialize in
	preparation of adding the call to INT15 AX=0xe820.
- Increased minimum number of handles to two due to the above change.
- XMS test program by Tom Ehlert. I include the .EXE file for test
	purposes unitl FDXMS is ready for prime time. Minor
	improvements by me.
- xms_move_xms without BIOS argument didn't work right for lengths not
	evenly divisible by four (i. e. 2, 6, 10, ...) if source
	address was below destination address.  


Version 0.6.Stars - 2001-07-05 - Martin Strmberg

- Correction of merging code by Tom Ehlert.
- Keep lock counter indicating lock in case of lock overflow by Tom
	Ehlert. Hopefully corrected now. I messed up Tom's earlier
	correction.
- Restore a20 state in xms_move_xms in case of failure.
- Don't uneccessarily enable a20 if it's already is enabled in
	xms_move_xms.
- Improved address moving verification which could be tricked with big
	offsets in conventional ram by Tom Ehlert.
- Now possible to allocate 0 sized EMB if there are handles available
	(but no memory).
- Minor updates to invalid NUMHANDLES option argument strings.
- Now you can install FDXMS.SYS in a directory called FDXMS.SYS.
- Handle ovelapping moves correctly. I'm not sure if BIOS does handle
	overlapping moves correctly though. Feedback wanted!
- Skip move altogether if move length is 0 by Tom Ehlert.
- Skip move altogether if src == dest by Tom Ehlert.


What's up with the version numbers? They are a tribute to Dead Can
Dance <http://www.evo.org/html/group/deadcandance.html>, a superb
music group. Their third album is called "Within the Realm of a Dying
Sun" which was the first piece I heard by them. Check it out some
time. 


Version 0.5.Sun - 2001-06-13 - Martin Strmberg

- The TRACE_SEPERATOR argument was never implemented. Ooops! Don't go
	looking for it.
- Coalesce xms_realloc_umb, xms_reqest_umb and xms_release_umb into
	one block to save memory by Tom Ehlert.
- Keep lock counter indicating lock in case of lock overflow by Tom
	Ehlert.
- Now possible to compile in the trace code conditionally.
- Detection of end of command line in DOZE corrected.
- Inserted P8086 and P386 at strategic places so that it ought to fail
	gracefully on a processor earlier than 386.
- Check the size of moves to/from XMS. Idea from Tom Ehlert.
- Report interface version as 2.0, which it is as XXMS is not
	implemented, from Tom Ehlert.
- Report driver version properly from Tom Ehlert.
- Protect bios_gdt from reentrancy properly by Tom Ehlert.
- Only copy 0x1000 words using BIOS call without enabling interrupts
	by Tom Ehlert.
- Debug option IFDEFed out for now.
- Check the size of moves to/from conventional RAM.


Version 0.4.Dying - 2001-05-13 - Martin Strmberg

- NOTE: The license has been changed to GPL version 2

- Using ax for jump to the proper function; thus no need to pop bx in
	all functions anymore.
- Localized most local labels.			
- Command line arguments handling added.
- TRACE argument added.
- DEBUG argument added. Doesn't do anything though.
- NUMHANDLES argument added.
- Improved merging of adjacent free blocks by Tom Ehlert.
- Made to work in protected mode environment (e. g. SICE) by calling
	the BIOS by Tom Ehlert.
- Removed limit of 16MiB in protected mode environment.
- BIOS argument added to always use the BIOS.
- Should be able to handle more than 32MiB now by Tom Ehlert.


Version 0.3.Realm - 2001-04-21 - Martin Strmberg

- Validation of handle procedure added: handle_valid.
- Use of handle_valid added to functions 0xa, 0xb, 0xc, 0xd and 0xf
- Don't push _all_ registers in xms_move_xms.
- Change XMS_NO_UMB_AVAILABLE to XMS_NOT_IMPLEMTED in xms_request_umb
	by Bart Oldeman.


Version 0.2.Within - 2001-04-15 - Martin Strmberg

- Corrected function 0xe.


Version 0.11 - 2001-01-?? - Louis P. Santillan

- Correction of A20 switch code.


Version 0.1 - 10/11.95

- initial version, uploaded for testing
- still about 400 bytes bigger than HIMEM :(
- poor feedback until now...
- works with a lot of software, but Watcom Help doesn't work when run with
  Norton Cache of Norton Utilities 8.0
