[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Rep:Re: Rep:Re: [f-cpu] signed cmpl



Nicolas Boulay wrote:

64) immediat instruction could cover most immediat instructions used by
gcc ?
nicO

I think the best way to find out is study typical programs.
Small constants +-15..0 are used for auto incriment/decriment
instuctions and small case values. NULL is often 0 and error
codes -1...-n. Character constants would be the next common
case. I am guessing +- 4096 bytes would typical for stack
addressing. +- 262144 bytes would make a good short base
address providing array/record data is sorted after record
data.
Ben.





*************************************************************
To unsubscribe, send an e-mail to majordomo@seul.org with
unsubscribe f-cpu       in the body. http://f-cpu.seul.org/