A portable kernel for the Foenix series of computers.
The purpose of this project is to provide a simple kernel for the Foenix series of retro-style computers. Emphasis is placed upon the word "simple." This operating system will be more related to MS-DOS or CP/M than to Unix or Linux. The main purposes of this kernel are:
- Boot the Foenix computer to a reasonably usable state.
- Provide access to files on IDE hard drives, SD cards, and floppy disk (when the computer supports floppies).
- Provide an environment for loading and running binary programs from media.
- Provide access to those devices which are tedious to access at the lowest level (e.g. storage media, keyboard, text mode screen).
- Provide a common programmatic interface for all the computers in the line.
- Be broadly portable across the different processors the Foenix computers support (at the time of this writing, this includes the 65816, and the 68000 series).
[Flesh this out as we get there. Intention is to support the FMX, U, U+, A2560K, A2560X, A2560U (68000 and 65816), and GenX.]
Please refer to processor specific building instructions that will be included. For the 65816 and 68000 computers, the project will be built using the VBCC compiler.
Building this project requires the VBCC compiler and the
MAKE utility. Using your command line, go into the src directory and type:
export VBCC = <use-your-projects-dir>/FoenixMCP/vbcc
make all
to build the kernel.
To remove binaries and intermediate files:
make clean
There are three option variables that can be set in the makefile:
CPU: This specifies which CPU is the target. Currently only the M68000 is supported, with a CPU code of 32 (0x20).MODEL: This species which Foenix model is the target. Currently only the Foenix A2560K is supported, with a code of 13.KBD_POLLED: As a temporary feature, if this option variable is defined, it will specify to the kernel that polled I/O is to be used for keyboard access instead of interrupt driven I/O.
Most of the source code for this kernel is made available under the open source BSD 3-Clause License (see LICENSE). However, the kernel also includes portions of other projects, which are covered under their licenses. In particular, the kernel currently uses the FatFS embedded file system, which is covered under separate license. Please see the src/fatfs directory for license details.
See the features list for the features intended for this kernel and the status of implementation.