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To: Mani1 who wrote (21507)	12/5/2000 12:28:50 AM
From: Dan3	Read Replies (2) \| Respond to of 275872

Re: info on Clawhammer. I think the Sledgehammer / Clawhammer family is what will really make AMD. This is the generation that they will be able to launch while they are making money and already have decent market share. Considering what AMD was able to accomplish when they were on the verge of bankruptcy, had no support from OEMs, and no respect in the marketplace, the launch of this family when they start out in so much better shape should really be something. Lots of info like this is located here: members.tripod.co.uk AMD Sledgehammer, Clawhammer K8 (x86-64) 64-bit general specification. The Sledgehammer, Clawhammer will have support for: Intel's streaming Single Instruction Multiple Data (SIMD) extensions (SSE). It has a total of sixteen 128-bit SSE floating point registers, that is 8 new registers. Eight new general purpose registers. It will double the number of general purpose registers by having 8 new 64-bit GPR's. 64-bit flat virtual addressing. The x86-64 "long -mode" supports 64-bits of virtual address space, more memory than current computers (or super-computers) have. First processors of the Hammer family (Sledgehammer) will only have 48-bits of virtual address space with 40-bits of physical address space. Still beyond the current 32-bit processors. Widen the GPR's to 64-bits. The x86-64 supports 64-bit integers so that very large numbers can be handled accurately and quickly. Legacy mode support for x86 mode: 16 & 32-bit operating systems. Long mode support allows 64-bit operating system to execute 16 & 32-bit software. 64-bit Long mode for advanced 64-bit operation via x86-64 extensions. 64-bit Virtual address space. General operating modes for Sledgehammer & Clawhammer. The general operaing modes of the AMD Sledgehammer & Clawhammer processors in Long Mode support it will support all 64-bit operations and allow support for existing 16 & 32-bit applications through a long mode compatibility option. In Legacy Mode these AMD hammer processors will provide backward compatible 16 & 32-bit support for traditional operating environments such as Windows 98 and IBM OS/2. Legacy mode supports traditional x86 real, virtual, and protected mode software. AMD is planning for full compatibility by offering complete support for current and future software while maintaining true cross platform 16, 32 & 64-bit operation support.

To: Mani1 who wrote (21507)	12/5/2000 12:47:10 AM
From: Petz	Respond to of 275872

Mani, <Clawhammer> Will probably have samples (and low volume launch) in Q4'2001. Production q1'2002. Starting at at least 2 GHz. I believe, but am not sure, that Clawhammer was announced to be on 0.13u process and have a die size less than 100mm. Sun has announced interest in x86-64. SuSe is already readying a Linux version for it based on the AMD emulator available for free. Will Microsoft have support ready in time? That's debateable, but it could run in 32 bit mode on a 32 bit OS. In a sense, that's similar to Itanium, but since x86-64 is very close to IA-32, there probably isn't much performance penalty. AMD says Clawhammer will be a faster 32 bit CPU than an equally clocked Athlon. Petz