Linked by Hadrien Grasland on Thu 13th Jan 2011 11:23 UTC, submitted by vodoomoth
Hardware, Embedded Systems "Despite the progress, ARM, which licenses its designs to chip makers, is keeping its focus on smartphones and tablets. The company's CEO, Warren East, sat down with the IDG News Service to discuss Windows, the PC market and future architecture developments."
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RE[7]: INITALLY
by Kochise on Sat 15th Jan 2011 19:45 UTC in reply to "RE[6]: INITALLY"
Kochise
Member since:
2006-03-03

In 16 bit mode it's just an idiotic way to address more than 64KB of memory

Completely stupid, I do agree with you. Providing a full blown 20 bits address register would have done the trick. The 68000 was able to address 24 bits (16 MiB) and while being internally 32 bits, only the 24 LSB of each address registers were used (some programming tricks used the 8 unused MSB which lead to portability problem when the 68020 came out, being full 32 bits.

System programming with only the arch's official documentation is generally-speaking extremely hard.

Nope, you mentioned the 68000, this one is gifted by the Gods : completely orthogonal (you can perform any operation in any data register) very easy to use, very easy assembler, even the original datasheets and programming manuals are a breeze, see here http://www.freescale.com/files/archives/doc/ref_manual/M68000PRM.pd...

I'd sure love to see some good comparison of both which goes in more details.

Well, since Ubuntu 10.10 also works on ARM, it would be cool to compare a PandaBoard and a Netbook running under Atom N550, just to see how a 1 GHz machine outperform a 1.8 GHz one :p

In a lot of areas, you don't have to provide a powerful processor or something, it just has to be dirt cheap and the rest is a bonus.

Sure, the 68000 had so many bonuses that granted it such a long life that it still be used inside ColdFire processors.

we should have stopped vendors from using proprietary HW interfaces and binary drivers from the very beginning, and started a standardization effort instead, but now it's too late and all we can do is hope that they will open up their specs sooner or later, like Intel and AMD did, so that we can fully reimplement (!) the binary blob in an open-source form. On a nearly per-device basis.

Well, Gallium3D is an attempt to standardize the blob and specs around a newly crafted interface. Hope it'll succeed ;)

Kochise

Edited 2011-01-15 19:46 UTC

Reply Parent Score: 1

RE[8]: INITALLY
by Neolander on Sat 15th Jan 2011 20:16 in reply to "RE[7]: INITALLY"
Neolander Member since:
2010-03-08

Well, since Ubuntu 10.10 also works on ARM, it would be cool to compare a PandaBoard and a Netbook running under Atom N550, just to see how a 1 GHz machine outperform a 1.8 GHz one :p

As soon as the "Atom" brand is around, I'd indeed not bet on the x86 processor winning ^^ However, what I had in mind was not a performance comparison of two processors using both architectures (with all the flaws it might have if not done properly), but rather a comparison of both architectures for their intrinsic merits.

Edited 2011-01-15 20:18 UTC

Reply Parent Score: 1