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From: | Chris Friesen |
Subject: | binutils and G5/ppc970 |
Date: | Wed, 28 Apr 2004 14:16:54 -0400 |
User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040113 |
The 970 has a new instruction, called "dcbzl". It is exactly like "dcbz", except that it operations on 128-byte cachelines unconditionally, while "dcbz" operates on 32/128 byte cachelines depending on a particular processor-specific bit.
The "dcbzl" instruction is distinguished from "dcbz" by the fact that the 10th bit (in IBM's nomenclature where the high order bit is bit zero) is set.
ie: dcbz 0x7c0007ec dcbzi 0x7c2007ec I don't know enough about binutils to actually submit the proper patch. Chris
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