Linked by Thom Holwerda on Sun 29th Apr 2012 20:28 UTC
BeOS & Derivatives "During the coding period, I will first work on the boot loader. I intend to modify the existing x86 boot loader so that it is capable of loading both a 32-bit Haiku kernel and a 64-bit one. Once this is done, I will work on implementing the x86_64 architecture functionality in the kernel. Finally, I will port modules and drivers to the 64-bit kernel. Should I have time, I will also begin work on porting userland." Heck. Yes.
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RE[3]: Cool, but...
by pgeorgi on Mon 30th Apr 2012 06:13 UTC in reply to "RE[2]: Cool, but..."
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32-bit has SSE, too, but of course I understand that you mean the subsequent extensions (>=SSSE3). Also, there's NX.

32-bit needs to be built with older systems in mind, ie. those without SSE (any version). On an x86-64 computer, the system can assume these extensions are available (and thus use them in the base system and ABI).

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