11 Apr
2013
11 Apr
'13
4:19 a.m.
Hmmm the source looks like this:
" /chosen" find-dev if " mmu" rot get-package-property 0= if decode-int nip nip ihandle>phandle active-package = if ... then then then
AFAICT the code should get the chosen package "mmu" property, decode it, remove the remainder, convert to a phandle and then do the comparison to active-package which should be valid?
... and 0 is never a valid ihandle; this isn't explicitly stated in the 1275 spec as far as I know, but there are many words that return ( ihandle | 0 ) , so for that to work, 0 cannot be a valid ihandle (many implementations use pointers as ihandles, but not all).
Segher