Subject: Re: major revision of kernel 'evcnt' interfaces.
To: Anders Magnusson <>
From: Jason R Thorpe <>
List: tech-kern
Date: 06/03/2000 15:13:55
On Sun, Jun 04, 2000 at 12:02:23AM +0200, Anders Magnusson wrote:

 > > Sounds like it's time to add a new pattern to!!  :-)
 > > 
 > Eh, new pattern? There are no 64-bit add/sub insn's on vax. 
 > (but there are move, shift and other...)
 > Microcode hacking maybe? :-)

From a discussion w/ Matt Thomas, sounds like 64-bit add can be
done with two instructions (tho, I don't have the ICB backlock
anymore).  If GCC isn't emitting those two insns to do a 64-bit
add, well, add a new pattern :-)

        -- Jason R. Thorpe <>