On 1 Dec 2011, at 22:42, Iain Sandoe wrote:
now I'm slightly confused - do we need to preserve if across the
call or not?
erm. not well phrased.
I am trying to get a grasp on what determines the set of registers
that should be saved.
Initially, I was thinking that it was the "call-saved" set - which, in
the Darwin ABI is silent about the FPSCR (consistent with Joseph's
remark - although I note that the ABI doc, in most cases, states YES/
NO for each register).
Now I'm wondering if the saved set needs to include most/all of the
set that are saved for exceptions?
cheers
Iain
