history.txt

GNU FreeDOS兼容MS DOS很好的东东.

2002 Feb 3 - Build 2026test
-------- Bart Oldeman ([e-mail])
+ Changes Tom
    * FCB clean-ups and fixes (bug in FCB Random IO,
      CYRUS CHESS, bug #1014)
    * initial config.sys menus (see config.txt)
    * execrh.asm: construct 'interrupt' address after strategy to avoid
      some issues with non-trivial 'strategy' routines.
    * make kernel UPX-able
    * cleaned up midnight flag, dates
    * tmark() and friends are floppy specific and implemented in C
      instead of ASM (parts by Bart)
    * DMA boundary checking gives the right number of sectors if
      the start sector is 512-bytes-aligned.
+ Changes Victor
    * lfn fixes (lfn is only a place holder, does not work yet)
    * FAT32 fixes
    * dosemu log nicer
+ Changes Martin
    * log output
    * warning fixes for sys, patchobj and prf.c
+ Changes Bart
    * FCB clean-ups and fixes
    * make Watcom compiled kernel runnable
    * make compilation with Pascal style calling conventions
      for Borland compilers (-p) possible
    * initialize CDS before opening devices
    * implement lock/unlock for remote drives
    * implement commit file (int21/ah=68,6a)
    * implement ioctl get/set logical drive map (int21/ax=440E--F)
    * implement get address of drive data table (int2f/ax=0803)
    * fix "get address of SDA" (int21/ax=5d06)
    * do not use CHS if the root extended partition of the relevant
      logical partition is labelled LBA (bug #1011)
    * hopefully avoid format problem (bug #1030) by not setting drive
      to "non-accessible" while reading the bpb.
    * boot sector fixes:
      enable booting beyond cylinder x where x * number of heads >= 65536.
      still uses CHS to boot (not able to boot beyond cylinder 1023)
      recognize FF8-FFF as FAT12 ending (was only FFF) (bug #1021)
    * avoid using LIB when linking the kernel by echo-ing to a linker
      resource file. Use a batch file to bypass Borlands Make 2.0
      unwillingness to redirect stdout.
    * 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 ([e-mail])
+ Changes Bart
    * ran source code .c and .h files through "indent"
    * fixed new printf bug
    * removed some duplicate documents
+ Changes Victor & Bart
    * fixed sys.c fat32 detection bug (offset 0x10, not 0x2c)

2001 Nov 17 - Build 2025b
-------- Bart Oldeman ([e-mail])
+ Changes Tom
    * fix a few more batch file and makefile details
    * fix problems with command line editing: F1 and right key
    * string merging in dosnames.c
    * optimizations for MSC
+ Changes Bart
    * fix readblock problem not properly detecting EOF - it sometimes
      returned an error where it should just report a short count.
      Also fnp->f_offset==0 is not a special case for blockread
      (neither should it be for write - but that'll be for later)
      For both cases it's perfectly legal to do a seek first.
    * fix writeblock not setting highwater to offset when doing a
      truncate (count == 0)
    * hopefully now really fix the floppy change problem -
      dsk.c: getbpb() should query changeline BEFORE reading the BPB.
    * fixed warnings from WATCOM compiler - one of them was in fact
      a bug in fcbfns.c
    * started big clean-up
      - converted obsolete bcopy(), sncopy() and friends to memcpy(),
        strncpy() etc.
      - removed $Log entries that are also on the CVS server and
        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 ([e-mail])
+ Changes Tom
    * initialize LBA parameter struct to 0's - some BIOSes don't fill
      in everything. Thanks to Bernd Blaauw's bug report.
    * Minor boot sector optimization.
    * added some exeflat options
+ Changes Jeremy
    * changes to fdkrncfg.c: mostly cosmetic to the output
    * added sys.doc file (updated by Bart)
+ Changes Bart
    * let int 0 (divide by zero) and int 6 (invalid opcode) print a
      stack trace to aid in debugging
    * fixed floppy drive detection for XT's.
    * fixed bug in int21/ah=0x32 and friends - we should flush data before the
      forced media_check
    * Use CHS addressing if possible on partitions with the relevant ID,
      you can overide this using the new FORCELBA and GLOBALENABLELBASUPPORT
      sys config options.
    * Always use BIOS values for translating LBA to CHS for fixed disks -
      ignoring the boot sector values. For floppies the boot sector is used.
    * fixed "truename hello." to remove the trailing dot.
    * added options to SYS to write to a boot sector image file
    * set Critical Error Code for ioctl's
    * fake cluster size for 64k clusters just like FAT32 for INT21/AH=0x36
      and friends.
+ Changes Bart+Tom+Victor
    * make makefile system more robust
+ 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 ([e-mail])
+ Changes tom
    * config.sys processing: placing ? on the left side of '=' like
	 ?device=  or device ?=
	 asks for this single line
      fill the available HMA with buffers
    * added kernel configuration options to sys.com, small area at 60:xx
      (in cooperation with Jeremy)	
    * readblock optimized to read as many data as possible in one
      int13 request - great speedups for large reads
    * some more SDA variables need to be updated for the network
      redirector (the sft index)
    * reduce stack usage in task.c, fattab.c, ioctl.c, execrh.asm, inthndlr.c
    * protect high part of 32-bit registers (stacks.inc)
    * moved copyright messages to init data to save a bit of memory
    * added relocinf, patchobj, sorted + some more output of exeflat
    * UMB fixes
+ Fixes Bart, Victor, Tom
    * more FAT32 fixes - to work with device drivers
    * fixed overflow problem with more than 2048 directory entries
    * various space saving changes, dir_init_fnode
+ Changes Bart, Tom
    * many makefile changes to enable compilation with different
      compilers (MS, Watcom, Borland). Watcom compiles but the result
      does not run yet.
+ Changes Bart
    * extended the double-byte lead table from int21/ah=63 to 4 zeros
      to make Watcom happy
    * support for IOCTL AX=440D, CL=40,41,42,61,62 for
      read/write/format track - this enables R. Nordier format to work
    * default floppy type depends on the drive
    * rewrote many parts of int2f.asm to have a cleaner remote_xxx
      interface with less code and stack usage.
    * limit for int21/ah=36 is FFF6 total/free sectors
    * made the rtc clock reading code a bit more robust - assumes
      there is no rtc if the returned date is zero
    * removed non-necessary code in dosnames.c because we're always
      dealing with a TRUENAME there
    * added zero extending of files, but removed it (unless you force
      it) since MSDOS doesn't zero-extend files either
    * wrote a source for exeflat, removed all binaries from the source
    * added more INT2F/AH=12 functions to solve some MSCDEX issues
    * changed BAD sector handling : only ....FF7 is recognized as BAD,
      but FORMAT information from initdisk will only give ....FEF as
      the largest cluster (for safety), so ....FF0-....FF6 are not used
      for newly formatted disks (here .... is either nothing, F, or
      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 ([e-mail])
+ Fixes Victor
    * More FAT32 fixes
+ Fixes Tom
    * Printer handling
    * misc INT2F/AH=12 fixes.
    * misc clean-ups
+ Fixes Bart
    * Added drive B: handling if only one floppy drive available
      (look for play_dj() in dsk.c)
    * Simplify Victor's FAT32 fixes a bit
    * More printer clean-ups
    * fixed sys (thanks Jeremy)
    * DosChangeDir fails for path name too long.
+ Fixes Jeremy
    * Changed SYS so if no source given or only source drive (no path)
      given, then checks for kernel.sys & command.com in current
      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 ([e-mail])
+ Added Victor
    * FAT32 support (credits to Martin Stromberg for boot32.asm optimizations)
    * Delete long file names if short file name given
+ Added Jeremy
    * modified SYS so it takes optional 2nd parameter (similar to PC DOS)
      where if only 1 argument is given, assume to be destination drive,
      but if two arguments given, 1st is source (drive and/or path)
      and second is destination drive
+ fixes Victor
    * some small FCB and dsk.c fixes
+ fixes Tom
    * some FAT32 issues
    * many compiler portability changes (compiles with Watcom, MSC, ...)
    * DosMemChange should set the PSP
    * converted INT2F/AH=12 functions to C and added some - enough to
      get most of the MS LAN network client working
+ fixes Bart
    * some FAT32 issues
    * Dos{Open,Creat}Sft drive letter issues
       for CDROMs (thanks Jeremy)
    * shrink_file should ALWAYS fail for directories, also with
      dos_set_fattr (thanks Jeremy)
    * only give warnings for slightly suspect partitions at boot
      time where CHS does not match LBA.
    * re-enabled copyright notice.
    * some dsk.c clean-ups to avoid DIR giving the same contents for
      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 ([e-mail])
+ fixes Bart
    * truename fixes (#580)
    * free space fixes (#249)
    * Ctrl-C/Ctrl-Break fix

2001 Aug 19 - Build 2024/g
-------- Bart Oldeman ([e-mail])
+ fixes Bart
    * set file time fixes
    * clock fixes
    * findfirst/next fixes
    * added a bit more int2f/ax=12xx functionality
    * buffers trick to fool MFT so that it does not crash
    * Ctrl-S (pause) and Ctrl-P (printer echo) now work.
      Ctrl-Q is ignored by DOS.
    * 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 ([e-mail])
+ fixes Bart
    * fixed get current directory - MSCDEX works now (always)
    * initdisk.c correctly sets number of hidden sectors: necessary
      for FORMAT - SYS chain to work
+ updates Bart
    * initialisation memory situation changed: kernel is loaded
      to the top of conventional memory in the beginning. Then
      move it back low or high depending on DOS=HIGH and the presence
      of an XMS driver.
      DOS=HIGH without an XMS driver (such as FDXMS) has no effect anymore!
+ fixes Tom, Victor, Bart
    * various fatfs.c