[OpenBIOS] Dictionary size limit per device instance

Segher Boessenkool segher at kernel.crashing.org
Fri Aug 31 02:39:10 CEST 2007

> It's the FCode-Number limit, ie. 0x0fff.
> For details please look at:
> OpenFirmware IEEE-1275 (1994) spec. section 2.3.43.
> If I got this right, I am allowed to define/declare only 0x0fff number 
> of
> constants and/or functions, variables, defers etc. for which the
> tokenizer assigns a FCode-Number in the final tokenized FCode image.

Some Open Firmware implementations have a special FCode x'f4 which
allows FCode#s up to x'ffff; x'f4 followed by "high" byte, "low" byte.


More information about the OpenBIOS mailing list