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1. Comment - Microsoft Completes 64-Bit Windows

   (Apr 1, 2005 - 1:37 PM)

   Well... you don't need a 64 bit MAR to use a 64 bit MDR... the number of 'words' that the registers can process doesn't determine the length of the registes... U can have two registers, the two 128 bit long. Adresses are 36 bit long, 'words' aren't. The main thing that I think is 'cool' is that double numbers can be processed in one single punch (64 bit long).

2. Comment - Microsoft Completes 64-Bit Windows

   (Mar 31, 2005 - 10:35 PM)

   What is a fact is that to take advantage you need a 64 bit processing unit and (i don't know how much is it now... i think is 32 bits) new memorys that are able to store 64 bit-length words... to take full advantage... some may say that the only advantage are 4 gb memorys... no. The fact that double numbers require 2 processing cycles... discarding the fact that you have to access the memory twice. For me, as a programmer (well, im still studying) is a huge breakthrough. For example... what makes Apple computers so damn powerful??? 128 bit processors. The problem, besides the creation of a 64-bit based platform, is the hardware. Besides Xeon, Intel processors are 32 bit based processors, so, to have any serious advantage in a 64 bit based platform you need 64 bit length memory words and 64 bit processing chunks... But.. IMO.. this is a HUGE breakthrough...