[haiku-development] Re: [GSoC] x86-64 port

  • From: Simon Taylor <simontaylor1@xxxxxxxxxxxx>
  • To: haiku-development@xxxxxxxxxxxxx
  • Date: Thu, 08 Apr 2010 11:00:18 +0100

Hi Duane,

Sorry in advance for pedantry...

> [...] the Haiku OS [...]

It's just "Haiku".

x86_64 would be very cool to have. Although there aren't many Haiku apps
yet that need >4 GB of memory one of the other things about x86_64 mode
is having access to more registers for SSE code which I expect would be
useful for some of the video codecs and app_server drawing code.

(^ from wikipedia: "AMD's implementation of SSE2 on the AMD64 (x86-64)
platform includes an additional eight registers, doubling the total
number to 16 (XMM0 through XMM15). These additional registers are only
visible when running in 64-bit mode. Intel adopted these additional
registers as part of their support for x86-64 architecture (or in
Intel's parlance, "Intel 64") in 2004.")


Simon

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