[OpenBIOS] FCode on an embedded Leon-Sparc system

Rolf Schroedter Rolf.Schroedter at dlr.de
Wed Sep 27 16:43:37 CEST 2006

Stefan Reinauer wrote:
> You might want to look at this old stand-alone version of the openbios
> forth kernel: http://www.openbios.org/bin/kernel-1.1.tar.bz2
Okay, I managed to cross-compile kernel-1.1.
(Unfortunately the original kernel-1.1. built process does not support 
cross-platform builts, distinguishing between host and target):
1. Build the kernel & dictionary on my host system (cygwin)
2. Build the target kernel (Leon-Sparc) including the dictionary.h built 
in step 1.

After starting openbios() I'm getting the error:
    panic: dictionary not valid.
load_dictionary() returns -1;

Could this have to do with endianess ? Some other ideas ?
> And plug the fcode evaluator directly on top of that. You can probably
> end up with a 32k-48k system (uncompressed).
The system itself seems to be quite small:
Uncompressed: 26 kB code + 24 kB data
Compressed: 11 kB code + 10 kB data

Thanks & regards,


Rolf Schroedter
German Aerospace Center
Institute of Planetary Research
D-12489 Berlin, Rutherfordstrasse 2
Tel/Fax:  (+49) (30) 67055-416/384
Email:    Rolf.Schroedter at dlr.de

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