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Re: i860 live?
- To: zackw at stanford dot edu
- Subject: Re: i860 live?
- From: Jim Wilson <wilson at cygnus dot com>
- Date: Mon, 16 Apr 2001 13:38:52 -0700
- Cc: gcc at gcc dot gnu dot org
In article <20010416125329.P339@stanford.edu> you write:
>Is i860 a live target? I see the processor came out in 1989, but can
>find no history of it. It certainly doesn't seem to be maintained.
The i860 was never a very popular processor. It had an "interesting"
architecture from a compiler viewpoint. It had a dual-instruction open
pipeline mode that allowed high performance, but was very hard to generate
code for. It was used for a few high performance systems because of this,
but never used in any high volume system. I have an i860 architecture manual,
but have never seen an i860 system.
There are still a few of these machines around. See for instance
http://gcc.gnu.org/ml/gcc-patches/2000-07/msg00941.html
Jim