From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@9fans.net
Subject: Re: [9fans] signal.h in APE for newbies
Date: Fri, 4 Jul 2008 13:21:13 -0400 [thread overview]
Message-ID: <1658c6bd946753dfeddd85bdad8fd7a5@quanstro.net> (raw)
In-Reply-To: <74e6c91c9b771978f68b4f7430ae3cc2@terzarima.net>
> vx32 converts SIGFPE to the SIMD SSE/SSE2 trap 19, but
> 9vx expects only x87.
>
> i had wondered the other day whether there were AMD/Intel processors
> in common use that supported x87 but not SSE/SSE2. should 8c start
> using SSE as the plan 9 amd64 compiler does? could it support that exclusively?
it probablly could. but i worry about low-power x86
devices. perhaps floating point is just not an issue
on them?
i would be happy to just use the amd64 compiler and let
64 bit support be the bright line.
if that's not an option, perhaps it is best to fork the
32-bit compiler. perhaps renaming the current x86 +
x87 compiler ⅛c and use only sse2 with 8c.
- erik
next prev parent reply other threads:[~2008-07-04 17:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-04 8:17 Fernan Bolando
2008-07-04 9:59 ` Charles Forsyth
[not found] ` <a85d07977219d1010dd930280d4b013e@terzarima.net>
2008-07-04 14:17 ` Fernan Bolando
2008-07-04 15:54 ` Russ Cox
2008-07-04 17:19 ` Charles Forsyth
2008-07-04 17:21 ` erik quanstrom [this message]
2008-07-04 18:04 ` Charles Forsyth
2008-07-04 18:14 ` erik quanstrom
2008-07-04 19:22 ` Russ Cox
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