For a scientific space project I'm thinking about including an FCode interpreter into the onboard software. The target system is a Leon3 processor (Sparc-V8) in FPGA with serial port(s), spacewire and a few other interfaces. I'm able to compile & run bare C applications (gcc cross-compiler), so it seems to me that I don't need a real BIOS.
So you probably won't need SCSI or floppy drivers or any of the filesystems. These can be disabled by editing config/examples/cross-sparc32_config.xml. What kind of serial port is this, Zilog or PC (16550)?
Ideally the complete FORTH system should be in the range of 32-40 kBytes...
That can be difficult to achieve, currently the full build is 150k C code + 100k Forth. I don't know how much of the Forth is needed. Taking out unwanted drivers etc. could help a lot on C side, but down to 30-40k?
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