summarized log -d '>Feb 25 2005' kernel for today... WARNING: some of the

described changes might be available only in the UNSTABLE cvs branch (like
SYS OEMBOOT, Win3, COM port output for debug print, the SHARE tool), so the
history.txt should actually contain TWO entries, one which describes the
2036 cvs HEAD changes and one which describes the 2037 test UNSTABLE changes!


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1187 6ac86273-5f31-0410-b378-82cca8765d1b

docs/history.txt

@@ -1,3 +1,137 @@
+2006 May 20 - Build 2036 cvs and 2037 test
+-------- Eric Auer (eric@coli.uni-sb.de)
+
+WARNING: This changelog entry is a draft! The cvs log contains
+  data for both HEAD and UNSTABLE branch while a cvs checkout
+  seems to return only the HEAD branch. This file history.txt
+  should describe "2036 cvs" HEAD and "2037 test" UNSTABLE
+  separately rather than in one merged changelog item.
+
+In addition, the "Changes Eric" items yet have to be ported to
+  the UNSTABLE branch and the version.h for UNSTABLE should say
+  "03 Mar 2006" "2037 test" (revision 37)...!
+
+Most recent changes to source code (see version.h) are:
+  HEAD 9 Sep 2005 (not counting the Korean stub and execrh change
+    by Eric, and not counting the version number change itself)
+  UNSTABLE 3 Mar 2006 (includes SYS changes, more Win3 support,
+    COM port output for debug print, the SHARE tool...)
+    The head to unstable diff in general is quite large. As a rule
+    of thumb, use UNSTABLE if you need NLSFUNC or Win3 386 mode or if
+    you need a very new kernel, and use HEAD if you need stability.
+
++ Changes Jeremy
+	* build.bat, config.b: UPX and WIN3 build options, for BUILDALL
+	* boot/oemboot.asm: set backup boot sector on FAT32, add update
+	  option, fix oemboot to work with msdos 7+, in UNSTABLE branch.
+	* docs/bugs.txt: update Bugzilla URL
+	* docs/config.txt: document SWITCHES, based on suggestions from Eric
+	* docs/contrib.txt, docs/fdkernel.lsm: new email address
+	* docs/sys.htm, docs/sys.txt: see oemboot.asm
+	* docs/sys.txt: better check for valid backup boot sector # and add
+	  option to skip setting it
+	* hdr/debug.h, kernel/prf.c: slight cleanup, send debug prints to COM
+	  port, allow printf to work correctly when SS!=DS, debug changes
+	* hdr/device.h: add comments about what flags mean
+	* hdr/portab.h: from dev: add MK_PTR and MK_SEG_PTR macros
+	  add/use halt() wrapper for issuing "hlt" asm instruction
+	* hdr/version.h: update version to 2035b-cvs (= not a release yet)
+	* kernel/config.c: fix read calls to detect error, from Eric / Brad
+	* kernel/console.asm, newstuff.c, prf.c, task.c: compile time option
+	  to send debug output to COM port ("serial debugging console")
+	* kernel/dosfns.c: do not compares filenames to name field in block
+	  devices, extra win3 support, misc debug output changes, IsDevice
+	  should not compare filenames against block device driver headers
+	* kernel/dsk.c: works towards better SS!=DS support, centralized
+	  debug macros, some comments
+	* kernel/entry.asm: more win3 support, debug output changes, comments
+	* kernel/execrh.asm: protect 386 registers, using hdr/stacks.inc
+	  macros (Watcom: FS, GS Others: high 16 bits of EAX EDX, for MSCL8
+	  also ECX, for BC5 also EBX), for ALL device driver calls. Without
+	  this, some versions of free-EMM386 crash 386 optimized kernels.
+	  See list archives 24 Jul 2005 and later.
+	* kernel/fatfs.c: don't leave fd open when failing DIR bit check
+	  bug 1874 fix, do not consider setting DIR bit an error for
+	  int 21/4301=set attribute, if really is a directory
+	  Added some disabled debug messages, improved win3 support.
+	* kernel/init-mod.h: allow printf to work correctly when SS!=DS
+	* kernel/initdisk.h: insure bpb_huge is initialized (zeroed) [merge
+	  from dev kernel], fake floppy ddt so hd access works correctly on
+	  floppyless systems, based on suggested fix from Eric
+	* kernel/int2f.asm kernel.asm main.c: initial BIOS disk int 13h wrapper,
+	  only passively detects and notes floppy disk change, more win3 support
+	* kernel/inthndlr.c: potential fix for spurious near fnodes!=0 msg with
+	  shsufdrv and >2 near fnodes in use for bug 1879, use halt() wrapper,
+	  more win3 support, some debug output changes.
+	* kernel/intwrap.asm: assembly glue to wrap misc interrupts with C
+	  handler, cleaner push immediate from Arkady and note big bug to be
+	  fixed, later moved to UNSTABLE branch (also affects makefile)
+	* kernel/proto.h: fix prototype, add FAR
+	  allow printf to work correctly when SS!=DS
+	* mkfiles/generic.mak: undo a local only change, build list option
+	  is proper way to do this. more win3 support, upx build option.
+	* mkfiles/watcom.mak: allow printf to work correctly when SS!=DS
+	* share/MAKEFILE, share/share.c, share/share.hlp: FreeDOS SHARE
+	  (initial revision, later moved to UNSTABLE branch)
+	* sys/fdkrncfg.c: sync printf prototypes (uncorrupt executables)
+	* sys/sys.c: sync printf prototypes (uncorrupt executables)
+	  better check for valid backup boot sector # and add option to skip
+	  setting it. set backup boot sector on FAT32, add update option,
+	  fix oemboot to work with msdos 7+
++ Changes Eric
+	* kernel/globals.h changed the os_release version message to be
+          "build 2036 cvs [version Sep 09 2005 compiled May 20 2006]" as
+	  opposed to the old
+	  "version 1.1.35 (Build 2035b-cvs) [Jul 23 2005 12:34:56]"
+	  -> removed the "1.1.35" and compile TIME, added SOURCE DATE
+	* hdr/version.h removed some no longer used version defines
+	  Changed build to "2036 cvs" (revision 36)
+	  WARNING: Version should be "2037 test" (revision 37) for UNSTABLE!
+        * docs/history.txt: summarized log -d '>Feb 25 2005' kernel for this
+	  WARNING: some of the described changes might be available only
+	  in the UNSTABLE cvs branch (like SYS OEMBOOT, Win3, COM port
+	  output for debug print, the SHARE tool, ...)
+	* kernel/execrh.asm: removed the "protect 386 registers" patch
+	  again, a fixed version of free-EMM386 is available. This reduces
+	  device driver call overhead in terms of CPU and stack usage.
+	  Older EMM386 versions destroyed eax ebx ecx edi esi ebp fs gs,
+	  now go_driver_entry in emm386.asm saves those registers. Only the
+	  INIT was broken, but the execrh.asm patch protected ALL functions.
+	* share/share.c: changes to reduce TSR memory footprint
+	* kernel/inthndlr.c: added stub for function 0x6301/0x6302 Korean
+	  Hangul keyboard input methods (0x63xx is DBCS support related)
+	* docs/intfns.txt: updated list of supported DOS functions. When
+	  DOSLFN is loaded for int 21.71, only remaining unsupported int
+	  21 functions are 21.4b05 (set execution state), int 21.63xx
+	  (DBCS / Korean Hangul, see above) and int 21.5d01 - 21.5d05
+	  (close files by name/computer/task, list open files, commit all)
+	* made linebreaks in all batch files use CR LF, as Unix line breaks
+	  confuse command.com, leading to "early abort" or "endless loop"
++ Changes Lucho
+	* kernel/chario.c: Fix Ctrl-Z bug and retro-optimise a bit
+	* kernel/config.c, sys/sys.c: Fix BC 3.1 CONFIG.C compile and
+	  SYS Abnormal Program Termination error for BC
+	* sys/sys.c: fix update option (compared too many characters)
++ Changes Eduardo
+	* kernel/config.c: fix Spanish (34, not duplicate of 33)
+	* kernel/inthndlr.c: add int 2f subfunc 122B and 122D
++ Changes Jason
+	* kernel/fatfs.c: extended DPBs and Set Extended Error function
+	* kernel/inthndlr.c, kernel/proto.h: same
++ Changes Arkady
+	* kernel/inthndlr.c: use direct access instead of reading from copy
+	  made on stack
+	* kernel/intwrap.asm, kernel/kernel.asm: cleaner push immediate from
+	  Arkady and note big bug to be fixed
++ Changes Michael
+	* share/share.c: bugfixes
++ Changes Japheth
+	* share/share.c: HXDOS related improvements
++ Changes Bart
+	* kernel/main.c: patch to make device=f:\foo.sys work. String printf
+	  optimisation
+
+
 2005 Feb 25 - Build 2035a
 -------- Jeremy Davis (jeremyd@computer.org)
 + Changes Bart
@@ -23,6 +157,7 @@
 	  - added Int 2Fh/2Fh processing to set DOS version as per MS-DOS 4.0
 + Changes Eduardo
 	* inthndlr.c: added Int 2Fh/26-29h processing for NLSFUNC (with Lucho)
+
 2004 May 30 - Build 2035
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Lucho + Tom
@@ -147,6 +282,7 @@
 	* dsk.c: floppy determination type optimization for format --
 	  based on Arkady's suggestions a long time ago.
 	  + a few other small optimizations (~70 bytes total).
+
 2004 Apr 17 - Build 2034
 -------- Bart Oldeman (bart@dosemu.org)
     * break.c, chario.c, inthndlr.c, proto.h: Improve ctrl-c/ctrl-break
@@ -347,6 +483,7 @@
     * *.bat, config.b, kernel/makefile, generic.mak: .BAT file and
       makefile cleanups. Also Lucho reported that nmake/nologo doesn't
       always work in 4dos, but nmake /nologo works.
+
 2004 Jan 31 - Build 2033
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Bart
@@ -442,6 +579,7 @@
       CHECK MS-DOS VERSION 7; necessary for SpinRite (Steve Gibson)
     * inthndlr.c: implement int2f/ax=1211 NORMALIZE ASCIZ FILENAME
     * config.c, init-mod.h, main.c: Added SET support to config.sys
+
 2003 Sep 24 - Build 2032a
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Bart
@@ -455,6 +593,7 @@
     * sys.c: add /k kernname.sys option to and straighten out SYS option
       processing; remove the metakern magic.
     * config.c: ignore the segment part for multi-part device drivers
+
 2003 Sep 21 - Build 2032
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Rune Espeseth <re@icd.no> (modified by Bart)
@@ -577,6 +716,7 @@
     * kernel.asm: Use "local" (instead of "global") disable/enable
       A20. This solves the problems with NIOS.
     * asmsupt.asm, misc.c, proto.h, strings.c: Remove (unused) strncpy.
+
 2003 Jul 19 - Build 2031
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Luchezar Georgiev
@@ -611,6 +751,7 @@
     * SFT init cleanup (+3 files need to be low)
     * config.c, main.c: Fix bug in block device driver init of
       DPBs (bug #1969, TDSK problem)
+
 2003 Jun 18 - Build 2030
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -665,6 +806,7 @@
     * Fix bug in DeleteBlockInBufferCache: needs to make the block
       invalid, not flush it, if we're writing (bug #1635).
     * added switches=/k/n/f support to the config.sys parser.
+
 2003 Mar 14 - Build 2029
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -684,6 +826,7 @@
     * eliminated the "f_highwater" fnode field.
     * reintroduced HMA_TEXT segment and adjust segments in libm.lib
       to solve problems with Borland compilers.
+
 2002 Dec 9 - Build 2028
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -712,6 +855,7 @@
       this gives a more efficient map_cluster().
     * point the CharMapSrvc pointer to the DOS DS for AARD compliance.
     * nls.c: set CX to cooperate with load_unf.exe
+
 2002 Nov 9 - Build 2027
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -727,6 +871,7 @@
     * Hopefully innocent hack to deal with NDN in ioctl.c (ignore upper bits
       of the drive number)
     * use subst bit 15 for int21/ax=4409(IOCTL-CHECK IF BLOCK DEVICE REMOTE).
+
 2002 Oct 27 - Build 2027rc
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Bart
@@ -763,6 +908,7 @@
     * Fixed make temp file
     * fix bug in DosFindNext
     * misc makefile fixes
+
 2002 Aug 3 - Build 2027test
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -819,6 +965,7 @@
       merge as much as possible from DosExeLoader and DosComLoader
       (from Tom:) eliminate some structures in low memory
     * main.c: slightly cleanup "SHELL=" line parsing.
+
 2002 May 9 - Build 2026b
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -848,6 +995,7 @@
     * fixed SYS _dos_getdrive for non-Borland compilers
 + Changes Tom and Bart
     * cleaned up fatfs.c, fattab.c, sysclk.c (CLOCK$ driver), systime.c
+
 2002 Feb 17 - Build 2026a
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Martin
@@ -864,6 +1012,7 @@
     * some dosfns.c and fcbfns.c clean-ups
     * booting from hard disk now always sets the default drive to C:,
       not D: if booting from the second physical hard disk, etc (bug #1062).
+
 2002 Feb 9 - Build 2026
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -877,6 +1026,7 @@
     * removed all direct hooks from init_text to hma_text; duplicated
       the remaining functions (memset, memcpy and friends).
     * bumped up default DOS version of FAT32 enabled kernel to 7.10
+
 2002 Feb 3 - Build 2026test
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -923,6 +1073,7 @@
     * UMB variable clean-up
     * use of "const" for constant global variables
     * reduced size of Watcom-compiled SYS binary
+
 2001 Nov 18 - Build 2025c
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Bart
@@ -931,6 +1082,7 @@
     * removed some duplicate documents
 + Changes Victor & Bart
     * fixed sys.c fat32 detection bug (offset 0x10, not 0x2c)
+
 2001 Nov 17 - Build 2025b
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -957,6 +1109,7 @@
         removed the $ so no new entries will be added in files.
       indenting will be next - other fixes will be buried in diffs if
       I do that now.
+
 2001 Nov 12 - Build 2025a
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes Tom
@@ -988,6 +1141,7 @@
 + Changes Victor
     * cleaned up map_cluster and dir_read (bug fixed by Bart)
     * updated LFN API (in development, not used yet)
+
 2001 Nov 4 - Build 2025a (test)
 -------- Bart Oldeman (bart@dosemu.org)
 + Changes tom
@@ -1038,6 +1192,7 @@
       FFFF, FAT12/FAT16/FAT32).
     * more fatfs/fatdir clean-ups - now unnecessary fields dfull,
       dremote and dsize removed from fnodes.
+
 2001 Sep 24 - Build 2025
 -------- Bart Oldeman (bart@dosemu.org)
 + Fixes Victor
@@ -1059,6 +1214,7 @@
       path (of current drive or given drive) and if not there
       uses root (but only if source & destination drive are different).
       Fix printf to include count(ret) if copy can't write all requested bytes
+
 2001 Sep 22 - Build 2025 (test)
 -------- Bart Oldeman (bart@dosemu.org)
 + Added Victor
@@ -1090,12 +1246,14 @@
       a different floppy (get serial number/volume label did reset the
       changed state).
     * attribute should be 8-bit fix
+
 2001 Aug 19 - Build 2024/h
 -------- Bart Oldeman (bart@dosemu.org)
 + fixes Bart
     * truename fixes (#580)
     * free space fixes (#249)
     * Ctrl-C/Ctrl-Break fix
+
 2001 Aug 19 - Build 2024/g
 -------- Bart Oldeman (bart@dosemu.org)
 + fixes Bart
@@ -1109,6 +1267,7 @@
     * FCB "closing twice is legal" fix. Necessary for visicalc.
 + fixes Bart + Tom
     * fixed shsucdx /u unloading problem	
+
 2001 Jul 28 - Build 2024/f
 -------- Bart Oldeman (bart@dosemu.org)
 + fixes Bart
@@ -1170,6 +1329,7 @@
     * enable use of multiple UMBs
     * fixed task.c 'LOADHIGH executables': minAlloc == maxAlloc = 0
       and an fixed overwriting the MCB
+
 2001 Jul 9 - Build 2024/d
 -------- Bart Oldeman (bart@dosemu.org)
 + fixes Bart:
@@ -1259,6 +1419,7 @@ from 2001 May 21: Build2024L
 	 * Default lastdrive should be 5 (E) not 6 (F).
 	 * fixed not ignoring whitespace after '=' in config.sys
 	 * noted INT21/AX=3800 bug for getting the country. Put in a workaround for now.
+
 2001 Apr 21 - Build 2024
 -------- Bart Oldeman (bart@dosemu.org)
 + Fixes  Tom:
@@ -1285,6 +1446,7 @@ from 2001 May 21: Build2024L
          * Moved low memory code segment to 70:0.
 + Add    Tom:
          * Default interrupt 6 handler (invalid opcode).
+
 2001 Apr 16 - Build 2024
 -------- Bart Oldeman (bart@dosemu.org)
 + Fixes  * Use turboc.cfg to avoid long command lines; edit ALLCFLAGS
@@ -1293,6 +1455,7 @@ from 2001 May 21: Build2024L
          * Fixed loading .exe's in UMBs if not enough space available.
          * Some device drivers require \r\n at the end of their
            parameter line.
+
 2001 Apr 16 - Build 2023
 -------- Bart Oldeman (bart@dosemu.org)
 + Fixes  * Thanks to Martin Stromberg for pointing some bugs out:
@@ -1302,6 +1465,7 @@ from 2001 May 21: Build2024L
 	   if they do not take up memory.
 + Add	 * added printf "%S" and "%Fs" to print far strings.
          * enabled and cleaned up INT21/AH=6C (extended open/create).
+
 2001 Apr 15 - Build 2023
 -------- Bart Oldeman (bart@dosemu.org)
 + Fixes  Tom:
@@ -1371,6 +1535,7 @@ from 2001 May 21: Build2024L
          * DE_NFILES instead of DE_FILENOTFOUND to allow Volkov Commander to browse empty
            drives.
          * Fixed bug wrt zero terminated device names (should be spaces terminated).
+
 2001 Mar 30 - Build 2023
 -------- Bart Oldeman (bart@dosemu.org)
 + Fixes  Tom: Kernel alloc initialises to 0. This avoids some weird errors.
@@ -1387,12 +1552,16 @@ from 2001 May 21: Build2024L
                fix {get,set}_machine_name in network.c
 	       saner lastdrive handling
 + Add    Support for SHELLHIGH in config.sys
+
 2001 Mar 28 - Build 2023
+--------
 + Fixes  Bug fix release 2023b: dsk.c (reported by Nagy Daniel), inthndlr and
 	 int25/26 fixes by Tom Ehlert.
+
 2001 Mar 27 - Build 2023
 -------- Bart Oldeman (bart@dosemu.org)
 + Fixes  Bug fix release 2023a: fixed stack segment bug in entry.asm.
+
 2001 Mar 25 - Build 2023
 -------- Bart Oldeman (bart@dosemu.org)
 + Fixes  sys.com compilation: it is a proper .com and works again.
@@ -1401,6 +1570,7 @@ from 2001 May 21: Build2024L
 	 Suggestion from Aitor Santamaria Merino: implemented NUMLOCK=ON/OFF
          in config.sys. Also implemented strcasecmp.
 	 Updated intfns.txt; reported version is now 5.0.
+
 2001 Mar 24 - Build 2022
 -------- Bart Oldeman (bart@dosemu.org)
 + Fixes  Tom and Bart: cli/sti handling and other fixes in entry.asm,
@@ -1408,6 +1578,7 @@ from 2001 May 21: Build2024L
          Bart: warning removal + other compile time fixes.
          Tom: * more partition detection fixes in dsk.c.
               * dos_gettime() fix.
+
 2001 Mar 21 - Build 2022
 -------- Bart Oldeman (bart@dosemu.org)
 + Clean  A lot of space savings by Tom Ehlert, merely because Turbo C 2.01 does not
@@ -1617,8 +1788,8 @@ from 2001 May 21: Build2024L
 -------- James Tabor (jimtabor@infohwy.com)
 + added Eric W. Biederman patches via CVS.
 
-+ 2000 Mar 25 
+2000 Mar 25
-+ -------- Eric Biederman
+-------- Eric Biederman
 + Fixed	 Lastdrive handling
 + Fixed	 Not enough drives for number present devices
 + Added    Working (though not perfect network redirector)
@@ -1649,7 +1820,7 @@ from 2001 May 21: Build2024L
     available, which is not at this time.
 
 NOTE: The way the external NLSFUNC is called does not look well,
-therfore expect a change soon.
+therefore expect a change soon.
 
 2000 Mar 15 - Build 2019
 -------- James Tabor (jimtabor@infohwy.com)