From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <0b51d44d9fa58665417e8bda6bbbe66b@terzarima.net> To: 9fans@cse.psu.edu Subject: Re: [9fans] x87 From: Charles Forsyth Date: Mon, 2 Oct 2006 12:58:08 +0100 In-Reply-To: <1159552445.865081.235120@e3g2000cwe.googlegroups.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: c38796b2-ead1-11e9-9d60-3106f5b1d025 > Reading the article "The Various Ports", I get confused which the > mention about the 387 float point unit. The libc compiled to x86 > machines use the fpu or not? If not how to make it work? the system uses the fpu. the 387 mentioned is built-in to x86 machines these days, often alongside two or is it three others (3DNow! SSE SSE2). the compiler (and thus libc) uses the 387 model. the amd64 compiler uses sse2 instead.