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Re: multiple isa support

To: Ben Elliston <bje at redhat dot com>
Subject: Re: multiple isa support
From: "Frank Ch. Eigler" <fche at redhat dot com>
Date: Wed, 22 Nov 2000 19:29:51 -0500
Cc: cgen development <cgen at sources dot redhat dot com>
References: <14875.62361.630847.793130@casey.transmeta.com> <Pine.LNX.4.30.0011231107240.31016-100000@moshpit.cygnus.com>

Hi -

On Thu, Nov 23, 2000 at 11:08:56AM +1100, Ben Elliston wrote:
:    I'm guessing the way to go is to have a separate #include for each decoder.
: 
: Right -- that would make sense.  Do we really need to emit a decoder for
: each *isa* rather than each CPU?

Well yes -- that's fundamentally what makes an ISA different from others!
(I suppose cgen could emit one decoder function that does a run-time check
and switches between several independent decoder ... but that would
penalize machines that know their current ISA choice ahead of time.)


- FChE

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References:
- multiple isa support
  - From: Doug Evans
- Re: multiple isa support
  - From: Ben Elliston

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