Linked by Thom Holwerda on Wed 5th Jan 2011 22:09 UTC
Windows And this is part two of the story: Microsoft has just confirmed the next version of Windows NT (referring to it as NT for clarity's sake) will be available for ARM - or more specifically, SoCs from NVIDIA, Qualcomm, and Texas Instruments. Also announced today at CES is Microsoft Office for ARM. Both Windows NT and Microsoft Office were shown running on ARM during a press conference for the fact at CES in Las Vegas.
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RE: enough bits?
by lemur2 on Thu 6th Jan 2011 12:19 UTC in reply to "enough bits?"
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I sure hope they are planning to target only a future 64 bit ARM. It would be annoying if 32 bit addressing gets a new lease on life due to this. Personally, when I write a (linux) program, I generally don't even consider whether it would be portable to a 32 bit machine, just like I don't consider whether it would be portable to a 16 bit machine. I'd like it to stay that way.

The ARM Cortex-A15 MPCore CPU architecture, which is the one aimed at desktops and servers, is a 32-bit architecture. Nevertheless, it does not suffer from a limitation of 4GB of main memory, it can in fact address up to one terabyte (1TB) of main memory.

The Cortex-A15 MPCore picks up where the A9 left off, but with reportedly five times the power of existing CPUs, raising the bar for ARM-based single- and dual-core cell phone processors up to 1.5GHz... or as high as 2.5GHz in quad-core server-friendly rigs with hardware virtualization baked in and support for well over 4GB of memory. One terabyte, actually.

I believe the Cortex-A15 MPCore architecture includes a built-in memory management unit to achieve this feat.

Edited 2011-01-06 12:21 UTC

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