OS_Develop/FreeDOS
OS_Develop/FreeDOS
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26 Commits

Author SHA1 Message Date
Bart Oldeman
0afa773303 From Lucho: HMAFree == 0xfff0 - bytesToAllocate is valid and may happen 
if the buffers occupy exactly all HMA space up to and including the
last byte at ffff:ffff. Failing caused all buffers to go low ...


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@903 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-27 00:40:43 +00:00
Bart Oldeman
68c3f9ad13 Lucho reported that MSC compiled kernels now work after all. Let's mark 
those nasty "BSS" variables explicitly then to try to avoid future problems.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@880 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 23:46:25 +00:00
Bart Oldeman
147f4069e4 Make CS the same for INIT and HMA text for Watcom. Move HMA text up 
in kernel.asm. Use std for the memory move: helps if there's overlap
(PCs with a very low amount of RAM).


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@860 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-10 14:18:25 +00:00
Bart Oldeman
6e6e34024b Make UMB_get_largest "pascal". Let it use the xms driver address from 
the HMA code. Misc small config.c cleanups.
The uncompressed 386/fat32 kernel is now below 70000 bytes (69896).


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@854 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 15:43:01 +00:00
Bart Oldeman
5214472bf7 Use asmsupt string and mem functions for the init code too. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@787 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-02-24 00:25:56 +00:00
Bart Oldeman
2f4e2d3a69 * add support for the far jmp at "int 30" (0000:00c0) 
* mirror it for the HMA (ffff:00d0)
* put all DOS int handler (and the CPM entry jumped to from int30)
  jumpers in the "CONST" portion of DGROUP (instead of LGROUP)
  This helps Turbo C++ 1.01 make with the -S (swap) switch.
* adjustments to set the relevant PSP fields in task.c


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@694 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-09-16 12:38:02 +00:00
Bart Oldeman
7f21061003 Make a message #ifdef DEBUG only. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@637 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-07-12 20:57:23 +00:00
Bart Oldeman
c5c7128a02 Move externs to header files; sft init cleanup (+3 files need to be low) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@623 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-06-20 19:54:18 +00:00
Bart Oldeman
ed78089e0b introduce lol structure for list of lists; avoid lots of relocations 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@592 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-06-15 15:53:58 +00:00
Bart Oldeman
439cc495e4 * add FILESHIGH, LASTDRIVEHIGH, and STACKSHIGH and DOSDATA=UMB 
to load these structures into UMBs
    * make DOS sub-MCBs visible (seen by MEM)
    * preliminary allocation of FILES etc. now takes place at the
      top of conventional memory, and device drivers are loaded before
      the final allocation takes place.
    * handle multiple UMBs more correctly (but config.sys can use
      only one UMB for devicehigh -- /Ln,xxxx is not yet implemented)


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@589 6ac86273-5f31-0410-b378-82cca8765d1b
 2003-06-15 13:24:53 +00:00
Bart Oldeman
e67a8f5058 Changes for kernel 2028 (see history.txt) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@485 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-12-09 00:17:15 +00:00
Bart Oldeman
31661b437d Small cleanups; initialize a VDISK in inithma.c. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@409 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-08-03 02:37:59 +00:00
Bart Oldeman
f7fb744248 kernel 2026 final changes 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@348 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-02-09 00:40:33 +00:00
Bart Oldeman
0e8b739c4c kernel 2026 test changes (see history.txt) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@343 6ac86273-5f31-0410-b378-82cca8765d1b
 2002-01-23 22:29:41 +00:00
Bart Oldeman
b6d423a1b3 Ran all .c and .h files through "indent" 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@329 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-11-18 14:01:12 +00:00
Bart Oldeman
fe51b7a036 Truncated and disabled $Logs, fixed r/w bugs for kernel 2025b 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@326 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-11-17 23:26:45 +00:00
Bart Oldeman
048c87bbac FAT32 support, misc fixes, INT2F/AH=12 support, drive B: handling 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@305 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-09-23 20:39:44 +00:00
Bart Oldeman
d9c11a4095 Time and date fixes, Ctrl-S/P, findfirst/next, FCBs, buffers, tsr unloading 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@278 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-08-19 12:58:36 +00:00
Bart Oldeman
c5cb6b1cac Fixes for FORMAT+SYS, FATFS, get current dir, kernel init memory situation. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@274 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-07-28 18:13:06 +00:00
Bart Oldeman
c1b1896480 LBA/FCB/FAT/SYS/Ctrl-C/ioctl fixes + memory savings 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@260 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-07-09 22:19:33 +00:00
Bart Oldeman
64474e1dd4 A new SYS.COM/config.sys single stepping/console output/misc fixes. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@216 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-04-29 17:34:41 +00:00
Bart Oldeman
cb13571dab Init DS=Init CS, fixed stack overflow problems and misc bugs. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@204 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-04-21 22:32:53 +00:00
Bart Oldeman
c07675522e Fixed handles, config.sys drivers, warnings. Enabled INT21/AH=6C, printf %S/%Fs 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@197 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-04-16 01:45:26 +00:00
Bart Oldeman
be2ae12b54 See history.txt for the list of fixes. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@196 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-04-15 03:21:50 +00:00
Bart Oldeman
31b068e497 Misc fixes and implementation of SHELLHIGH. See history.txt for details. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@181 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-03-30 19:30:06 +00:00
Bart Oldeman
8dff303fda New file by Tom Ehlert for HMA initialization. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@168 6ac86273-5f31-0410-b378-82cca8765d1b
 2001-03-21 03:01:45 +00:00