Alan Cox wrote:
> > > Other machines included PR1ME computers which used a 32-bit word
> > > pointer, and a 48-bit byte pointer.
> >
> > How did C on those machines implement a void *?
>
> I cant speak for the old pre mips PR1ME but for the HLH Orion that was word
> addressed a void * was a char * and a char * was an address shifted left 2
> with the byte number in the low 2 bits.
>
> You really did have to get your casting right on those.
Huh? You mean that you have larger than 16 bit pointers on Pr1me?
Gee, I'm getting old... ;-)
I just checked: Those 48bit pointers are actually a 12 bit segment number,
16 bit word address and a bit number (5 bits?) -> 1Gbyte addressing space.
Roger.
-- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 ** *-- BitWizard writes Linux device drivers for any device you may have! --* * Common sense is the collection of * ****** prejudices acquired by age eighteen. -- Albert Einstein ********- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Jul 07 2000 - 21:00:12 EST