From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeffrey A Law <law@cygnus.com>
To: "David S. Miller" <davem@dm.cobaltmicro.com>
Cc: amylaar@cygnus.co.uk, egcs@cygnus.com
Subject: Re: some Sparc hackery in the works 
Date: Mon, 13 Jul 1998 21:47:00 -0000
Message-id: <14411.900391390@hurl.cygnus.com>
References: <199807140425.VAA21575@dm.cobaltmicro.com>
X-SW-Source: 1998-07/msg00471.html

  In message < 199807140425.VAA21575@dm.cobaltmicro.com >you write:
  >    ps.  Much of Dave's work mirrors stuff rth and myself have discussed
  >    as important to handle better on the sparc port.
  > 
  > BTW, during my work I noticed how much tha PA port is derived from or
  > influenced by the Sparc stuff, perhaps you can easily steal some of my
  > tricks and techniques ;-)
When I first started hacking on the PA port in 1992 it was still
generating sparc floating point opcodes :-)

"Derived" is just a nice way of saying the port started as:

cp sparc.md pa.md
cp sparc.h pa.h
cp sparc.c pa.c

vi pa.md pa.c pa.h


I think for everything except the conditional moves and other nullified
instructions we'll probably be able to steal some of your code.  In
fact, splitting up the DF/DI mode moves has been on the PA todo list
for a long time now.  It wasn't worth doing earlier since we didn't
split after reload.  But that's changed recently :-)

jeff