Date: Fri, 3 Nov 2006 13:59:46 -0800 (PST) From: ranjith kumar <ranjith_kumar_b4u@yahoo.com> To: freebsd-ia32@freebsd.org Subject: issue group for pentium4 Message-ID: <20061103215946.88505.qmail@web58411.mail.re3.yahoo.com> In-Reply-To: <3bbf2fe10610181116w64407a43j83e1acfa16c6c9d5@mail.gmail.com>
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Hi 1) "Issue group" is a set of instructions which can be issued to different execution units at same time so that many execution units can be executed parallely. Can any one tell any sourse where I can get the information such as which set of instructions are called as an issue group(in case of pentium 4 processor only). 2) Compilers exploit such a feature by reodering instructions. But Pentium 4 processor reoders instructions to do the same thing. So reordering by compilers is unnessecary. Am I right???????????? 3)How many instructions does Pentium 4 processor can look insatantly to reorder instructions? ____________________________________________________________________________________ Get your email and see which of your friends are online - Right on the New Yahoo.com (http://www.yahoo.com/preview)
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