From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <1658c6bd946753dfeddd85bdad8fd7a5@quanstro.net> To: 9fans@9fans.net From: erik quanstrom Date: Fri, 4 Jul 2008 13:21:13 -0400 In-Reply-To: <74e6c91c9b771978f68b4f7430ae3cc2@terzarima.net> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Subject: Re: [9fans] signal.h in APE for newbies Topicbox-Message-UUID: db9a2e2a-ead3-11e9-9d60-3106f5b1d025 > 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