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Re: RTEMS Patch for binutils 2.9.1
- To: law@cygnus.com
- Subject: Re: RTEMS Patch for binutils 2.9.1
- From: <joel@OARcorp.com>
- Date: Fri, 14 May 1999 07:11:30 -0500 (CDT)
- cc: Richard Henderson <rth@cygnus.com>, binutils@sourceware.cygnus.com
On Thu, 13 May 1999, Jeffrey A Law wrote:
>
> In message <Pine.LNX.4.10.9905131237110.501-100000@oar3remote>you write:
> > My understanding was that these were pretty critical instructions for an
> > OS implementation. Doesn't one of the other open-source OSes have a need
> > for these as well?
> Not really. The only ones I ever would have found useful would be movement
> to/from the shadow regs. Hmmm, actually we may have had an assembler macro
> to create mtcpu/mfcpu instructions using .word directives. It's hard to
> remember since I haven't done PA OS work in a while.
I recall using a similar trick initially with the RTEMS PA port and then
we decided it was ugly and error prone. It was easier to simply add the
instructions to gas. :)
--joel