e1b22c7035
update comments
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(from Geoff Chappell blog and RBIL)
2022-10-24 20:19:32 -04:00
49733547f1
kernel, main: add debugger_present variable and skip ints 0, 1, 3, 6
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Also adds a CheckDebugger byte to the CONFIG block and
support for reading and writing this setting in the
SYS CONFIG program. Default is 0 (no check assume absent).
2022-05-21 23:22:08 -04:00
7b6c8fb7fe
Build: Fixup compile with GCC and -DDEBUG
2022-01-16 12:40:47 -05:00
1bb536c383
LONG SEEK actually use lower 32 bits of 64 bit value (not 16 bits)
2021-08-08 14:37:07 -04:00
dd91e3c005
From Tom Ehlert: don't split disk transfers crossing DMA boundary if BIOS indicates can handle transparently
2021-07-30 23:04:06 -04:00
afca594446
from RBIL int 21h/4400h (table 01423) add definition for bit 11 if SFT is not for a device (for a file) - media not removable, currently unused
2021-07-22 23:22:38 -04:00
60067953b6
Update version in preparation for new release
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Next release will be 2.43 (2043)
2021-05-11 22:10:46 -04:00
093c6dd924
correct I186 and I386 macros definition
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correct I186 and I386 macros definition to work with all Open Watcom toolchain versions
command line definition macro has "1" value but in header file it is defined as blank value
anyway I86/I186/I386 macros usage is not transparent, it is definition duplicity in header file and on command line
it is wrong solution even if it works on most of compilers (command line macro re-definition is hidden)
2020-08-02 10:22:56 -04:00
6a29f57715
int2f: fix call interface around syscall_MUX14( ) (inthndlr.c)
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The issues are similar to those surrounding int2F_12_hanndler( )
(see https://github.com/FDOS/kernel/issues/11 ).
2019-12-09 06:23:12 -05:00
8ee8135d4f
ia16-elf-gcc port: use CDECL = __attribute__((cdecl)) instead of varargs.
2018-07-12 10:56:26 -04:00
49d1939ed7
ia16-elf-gcc: remove need for far function wrappers
2018-07-08 18:10:18 +08:00
ce8e4fd091
Use static for GCC, which makes the kernel smaller (automatic inlining)
2018-01-11 17:50:31 -05:00
89d97b18de
Fix ASMCFUNC (FAR) functions for ia16-elf-gcc.
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We need to use make the functions vararg (,...) to make them cdecl.
For FAR functions we need wrappers.
2018-01-11 17:50:31 -05:00
97003a8aca
Introduce popargs and arg macros to distinguish PASCAL/STDCALL conventions.
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GCC has -mrtd but the args are pushed in reverse versus PASCAL. So asm
routines have to use macros to obtain the stack arguments.
For the complex call_nls assembly, revert the arguments in C using a
preprocessor macro.
2018-01-11 17:50:31 -05:00
71a7d0d264
ia16-elf-gcc: provide GNU LD linker script and symbols to link kernel.
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The resulting kernel and sys.com do not work yet (kernel prints 123 only).
Some functions in sys.com are placeholders.
2018-01-11 17:50:31 -05:00
fbdbc4c25c
C source code changes so the kernel can compile with ia16-elf-gcc.
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Use "make all COMPILER=gcc".
Linking does not work yet with these changes.
2018-01-11 17:50:31 -05:00
0b26c3f18f
NLS: clean up to use the struct more and fewer relocations.
2018-01-11 17:50:31 -05:00
c9300387e7
Implement Int 2F/AX=120Bh based on RBIL description
2016-01-16 20:56:29 -05:00
504fd16746
Enable to load DBCS table from COUNTRY.SYS
2014-11-22 11:42:05 +09:00
0c6be32a7a
Add cross-compile capability on Windows with OpenWatcom and mingw32-make
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(Remove dependance on 16bit DOS executables when building)
2014-11-22 11:38:43 +09:00
a260927440
Tell version info without booting kernel
2012-10-15 06:41:07 -04:00
c431157156
FreeDOS kernel current - 2041+svn1709
2012-10-14 20:08:06 -04:00
Kenneth J Davis
C. Masloch
Andrew Bird
Jiri Malak
Tee-Kiah Chia
Bart Oldeman
lpproj