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kernel
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14 Commits

Author SHA1 Message Date
C. Masloch 49733547f1 kernel, main: add debugger_present variable and skip ints 0, 1, 3, 6 
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
C. Masloch 6d23a787fb fdkrncfg: bugfix, version info check should not include signature 2022-05-21 23:22:08 -04:00
Piotr Durlej e0818e305b SYS: Fix a bad merge 2021-05-11 21:45:38 -04:00
Piotr Durlej 0a0d55ea53 SYS: Reduce verbosity when the verbose flag is not set 2021-05-11 21:45:38 -04:00
Kenneth J Davis 49d3c8d76b add safety check to FAT12/16 boot sector to warn about breaking sys, update new offset in sys.c for NOPing out use of BIOS boot drive during boot (fix error about boot sector unsupported format) 2021-05-11 21:39:29 -04:00
Bart Oldeman a70f31bf61 ia16-elf-gcc: enable and fix basic warnings; don't do strict ptr aliasing for now 2018-01-11 17:50:31 -05:00
Bart Oldeman 9e04932d2b sys.com compiled with ia16-elf-gcc: fill in missing functions. 2018-01-11 17:50:31 -05:00
Bart Oldeman 71a7d0d264 ia16-elf-gcc: provide GNU LD linker script and symbols to link kernel. 
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
Bart Oldeman fbdbc4c25c C source code changes so the kernel can compile with ia16-elf-gcc. 
Use "make all COMPILER=gcc".
Linking does not work yet with these changes.
 2018-01-11 17:50:31 -05:00
Bart Oldeman 33d707ba7f Fix compilation with MSVC 1.52c. 
Needs one more file from the c library, BSS_INIT all uninitialized
globals in config.c and a define of SEEK_SET.
 2017-12-22 13:13:37 -05:00
KJD bdc2e068c4 remove some additional built files during clobber, ignore command.com in bin directory 2016-05-12 19:05:02 -04:00
lpproj 0c6be32a7a Add cross-compile capability on Windows with OpenWatcom and mingw32-make 
(Remove dependance on 16bit DOS executables when building)
 2014-11-22 11:38:43 +09:00
KJD a260927440 Tell version info without booting kernel 2012-10-15 06:41:07 -04:00
KJD c431157156 FreeDOS kernel current - 2041+svn1709 2012-10-14 20:08:06 -04:00