OS_Develop/FreeDOS
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Author SHA1 Message Date
Bart Oldeman
f94ba5ebe1 Improve ^C handling: 
- ^C didn't work for int21/ah=3f. Corrected -- Do_DosIdle_loop still needs
  to wait even if it doesn't call the idle int
- ^C needs to be echoed to STDOUT for low character functions (ah<0xd) but
  to the device that is read from for handle functions. So we need to pass
  either the STDOUT sft or that device on to the ^C echoer.
- The ^C echo really should print ^C\r\n.
- misc cleanups in break.c.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@883 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-14 09:20:08 +00:00
Bart Oldeman
9c41d97021 DATASTART should be FAR and not DOSFAR for MSC 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@882 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-14 08:51:46 +00:00
Bart Oldeman
237016c1d0 Move memset up a little else it would overwrite too much. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@881 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-14 08:50:35 +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
6f6ceadebc As per a suggestion from Arkady: use CPU to enforce 8086 etc instructions. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@879 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 20:41:15 +00:00
Bart Oldeman
74970d953b Correct int21/ax=4401: returned AL = old value, should set CY and DE_INVLDDATA 
if DH!=0 (RBIL is a little confusing here).


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@878 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 20:37:30 +00:00
Bart Oldeman
fed4d61e90 Fix new LBA problem. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@877 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 17:21:30 +00:00
Bart Oldeman
541b994f99 Correct another shr ...,4 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@876 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 17:16:39 +00:00
Bart Oldeman
c899541e2e Converted nxtMCBsize back to a macro. There is no need to use far2para; 
FP_SEG works fine since MCBs always have offset 0.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@875 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 12:13:03 +00:00
Bart Oldeman
e9716d990d Document the fact the MSCL8 compiled kernels don't work. 
Don't initialize BSS variables anymore -- now done by the memset in main.c
Removed obsolete BYTE cfgCSYS_fnam[NAMEMAX]; config variable.
Changed cfgInit and cfgInitTail to pointers, adjusted some code to work
with them.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@874 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 11:54:09 +00:00
Bart Oldeman
06de625da2 The screen position (for TABs) is only for raw *CONOUT* devices already 
updated in dosfns.c


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@873 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 11:21:29 +00:00
Bart Oldeman
3e1c1a526f AllocateHMASpace needs to check FP_SEG(firstbuf) for 0xffff, since the 
buffers may not live in the HMA.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@872 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 11:11:09 +00:00
Bart Oldeman
e5f882f2ec Use AL, not AX, for int2f/ax=1213, as per RBIL (from Arkady) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@871 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 11:07:59 +00:00
Bart Oldeman
46df83483b Make unnecessary far pointers near. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@870 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 11:02:36 +00:00
Bart Oldeman
2aa4789bfc (From Arkady) Avoid "shr cx,4" (it doesn't work on the 8088) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@869 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 10:58:06 +00:00
Bart Oldeman
7eb9514377 Move the ddt bitfields to df_descflags. Let SetLogDev call GetLogdev, 
eliminating common code.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@868 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 10:54:33 +00:00
Bart Oldeman
5d712fc2a6 Avoid bitfields for fnodes, using flags instead. 
Replaced droot field by checks for f_dirstart == 0.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@867 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-13 10:46:37 +00:00
Bart Oldeman
5c72b4a0e9 Fixed some missing dots 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@866 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-12 09:36:07 +00:00
Bart Oldeman
46833929f9 Some variables need to be DOSFAR now; init code is no longer tiny but small. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@865 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-11 17:22:18 +00:00
Bart Oldeman
c6c49e1ec1 Some makefile cleanups from Arkady. Also Lucho reported that nmake/nologo 
doesn't always work in 4dos, but nmake /nologo works.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@864 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-11 12:21:25 +00:00
Bart Oldeman
ca11edc6fd Buffer config fixes from Arkady. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@863 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-10 22:48:26 +00:00
Bart Oldeman
6ad8b415dd Applied Arkady's corrections to int2f/ax=4a01/2. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@862 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-10 21:07:06 +00:00
Bart Oldeman
dd6ace383a No longer include duplicate execrh, asmsupt, and u8m/d functions for the 
init text in the Watcom compiled kernel, since they can be called "near"
in the resident code.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@861 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-10 15:11:16 +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
e6e3b7a3a4 Use the "small" model for the init code (split code/data). This will enable 
us to use the same CS for resident and init code for Watcom (Borland's
too big), and share a bit.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@859 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-10 10:59:57 +00:00
Bart Oldeman
512f48e962 Use pointer to MK_FP(0,0x5e0) to save a bit of code. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@858 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-10 09:38:38 +00:00
Bart Oldeman
78995ad7cc Move some common code into a "push_ddt" function. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@857 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-10 09:37:45 +00:00
Bart Oldeman
cfed8c6f29 We must do "sbb ax, ax" *before* "popf" otherwise it won't be predictable! 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@856 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 23:51:44 +00:00
Bart Oldeman
11e57c64db fmemcpy->memcpy 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@855 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 16:08:57 +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
4af102b61f "Cache" far drive data table near. Enable to eliminate many far 
pointers in initdisk.c. Also clear up ConvPartTableEntryToIntern --
most of the casts were completely unnecessary.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@853 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 15:39:56 +00:00
Bart Oldeman
c415f74ee4 Use pascal calling conventions for all clock related asm functions. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@852 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 13:47:20 +00:00
Bart Oldeman
c5f6ed4aa8 Use pascal calling conventions for the remaining intr() functions (XMS 
related)


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@851 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 13:13:06 +00:00
Bart Oldeman
7012672d7d Use pascal calling conventions for floppy asm functions. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@850 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 13:11:25 +00:00
Bart Oldeman
950078ad08 Use the pascal calling convention for most intr.asm functions, and let 
them pop the stack (smaller code than using bx).
Tell Watcom which registers are clobbered; save some more registers
for intr() -- especially for intr() this helps.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@849 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 11:37:40 +00:00
Bart Oldeman
a7ca14c46c Use pascal calling conventions for execrh(). 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@848 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 11:16:03 +00:00
Bart Oldeman
00e9730e32 Fix typo 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@847 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-09 11:01:34 +00:00
Bart Oldeman
0897ba9b38 Use the "-r" switch for Watcom to preserve ES around calls -- saves ~350 
bytes.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@846 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-07 16:16:07 +00:00
Bart Oldeman
7ae98cee2a Introduce VA_CDECL: only Turbo C 2.01 needs an explicit cdecl for printf, 
all other compilers can use it with pascal or "register" calling conventions.
Saves ~50 bytes for the init code.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@845 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-07 16:13:23 +00:00
Bart Oldeman
e56f81d6a9 Use xreg struct and macros to optimize the int2f/12,4a handler a bit 
~25 bytes (mostly from Arkady)


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@844 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-06 23:51:33 +00:00
Bart Oldeman
ab21f9be76 buffer intersection check should use > instead of >= (spotted by Arkady) 
small optimization -- the segment in bp == firstbuf is always the same
so we just need to compare offsets.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@843 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-06 23:03:51 +00:00
Bart Oldeman
83f044fbe0 Use strchr and strlen more often; also use strchr in the init code. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@842 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-06 22:48:12 +00:00
Bart Oldeman
deecf43882 Better to call fmemset than to do things manually. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@841 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-06 16:38:01 +00:00
Bart Oldeman
8ea4701226 Preserve bx and cx for WATCOMC in asmsupt.asm as well. Saves another 
200 bytes.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@840 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-06 16:29:27 +00:00
Bart Oldeman
8e80462093 Be more specific about which registers are clobbered by asmsupt.asm 
functions. Preserve "ES" for Watcom.
Saves ~150 bytes resident, ~90 bytes nonresident, more for 386 kernels.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@839 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-04-02 00:38:24 +00:00
Bart Oldeman
eed84806f8 dos_commit was missing a save_far_f_node() call. That caused the tar xzvf 
problem. Also fixed the case when no far fnodes are available anymore.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@837 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-27 17:12:16 +00:00
Bart Oldeman
03138b0ed4 explicitly use .bat for call, etc., otherwise 4DOS doesn't like us... 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@836 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-27 12:13:10 +00:00
Bart Oldeman
29bcbde334 It doesn't work with two * two % (at least in FreeCOM) 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@835 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-27 02:36:50 +00:00
Bart Oldeman
3fe15616e7 .BAT file cleanups from Arkady 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@834 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-27 01:42:33 +00:00
Bart Oldeman
66a756f1a3 Simplify memory access mode check. 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@833 6ac86273-5f31-0410-b378-82cca8765d1b
 2004-03-27 00:35:34 +00:00