Derrick Operating System
Derrick is a freeware hobby 32-bit protected mode operating system programmed in FASM. It is aimed for stability and speed and it can run on as little as a 80386 DX with EGA and 4 MB of RAM.
Currently, it can be run from a floppy disk and has a pretty stable and fast shell along with some interesting functions, like CPUID and CPU speed detection, temporary unreal mode switching for legacy disk access, three shell keyboard layout drivers, text-mode fonts loading on the fly, VGA SPIRAL demo, selection between 9-bit and 8-bit VGA dot-clock fonts and much more.
The current version is 0.0.2 and it has many improvements and bugfixes from 0.0.1, including a simple FAT12 file reading and a 32-bit DMA floppy driver (legacy BIOS INT 13h is used as a last resort).
Derrick is available in Slovak and English, thus both language versions fully support the Kamenický text encoding.
Programs
Currently, there is no support for user programs.
Currently, it can be run from a floppy disk and has a pretty stable and fast shell along with some interesting functions, like CPUID and CPU speed detection, temporary unreal mode switching for legacy disk access, three shell keyboard layout drivers, text-mode fonts loading on the fly, VGA SPIRAL demo, selection between 9-bit and 8-bit VGA dot-clock fonts and much more.
The current version is 0.0.2 and it has many improvements and bugfixes from 0.0.1, including a simple FAT12 file reading and a 32-bit DMA floppy driver (legacy BIOS INT 13h is used as a last resort).
Derrick is available in Slovak and English, thus both language versions fully support the Kamenický text encoding.
Programs
Currently, there is no support for user programs.
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