Linked by Thom Holwerda on Sun 8th Jul 2012 22:54 UTC
"In this tiny ebook I'm going to show you how to get started writing 6502 assembly language. [...] I think it's valuable to have an understanding of assembly language. Assembly language is the lowest level of abstraction in computers - the point at which the code is still readable. Assembly language translates directly to the bytes that are executed by your computer's processor. If you understand how it works, you've basically become a computer magician." More of this, please.
Thread beginning with comment 526076
To view parent comment, click here.
To read all comments associated with this story, please click here.
To view parent comment, click here.
To read all comments associated with this story, please click here.
RE[3]: Comment by ilovebeer
by DeepThought on Tue 10th Jul 2012 02:08
in reply to "RE[2]: Comment by ilovebeer"
Member since:2010-07-17
RE[4]: Comment by ilovebeer
by Alfman on Tue 10th Jul 2012 02:58
in reply to "RE[3]: Comment by ilovebeer"
Member since:2011-01-28
DeepThought,
Yea, GCC often produces subpar code in my experience. Depending on how tight a loop needs to be, hand-crafted assembly can bring decent gains. Sometimes we can get away swapping in intrinsics, other times GCC just refuses to output good code.
ICC is supposed to be an excellent code optimiser though.
It's all relative though, computers have gotten so fast we're usually waiting on I/O anyway.
Features
Linked by Thom Holwerda on 05/20/13 11:29 UTC
The day has finally come! Jolla has finally announced the launch device for its Sailfish operating system - and by god this is a looker. It's decidedly different from other phones out there, but it has good specifications and carries a relatively reasonably price tag - EUR 399, and it's up for pre-order today, shipping in the fourth quarter of this year.
Linked by Thom Holwerda on 05/18/13 21:33 UTC
Why does Google get so much credit in the technology industry? Why, despite the company's many obvious failings, do many geeks and enthusiasts still hold a somewhat positive view on the all-knowing technology giant? A specific talk at Google I/O this week provides the answer.
Linked by David Adams on 05/16/13 4:23 UTC
OSNews is a sponsor of this year's O'Reilly OSCON in Portland, Oregon, USA. A lucky OSNews reader will win a free three-day pass, including two tutorials days. To win the pass, post a comment on this story saying something about Open Source Software or OSCON. We'll pick a winner at random next week. If you don't have an OSNews account, you may email us your entry. Part of the conference is the 9th annual Open Source Awards, and today the 16th is the deadline for nominations. If you'd like to nominate an outstanding open source contributor, do it here. Read on for more information about OSCON. Update: The 20% discount code for OSNews readers is "OSN."
Linked by Thom Holwerda on 05/11/13 21:41 UTC
"Windows is indeed slower than other operating systems in many scenarios, and the gap is worsening." That's one way to start an insider explanation of why Windows' performance isn't up to snuff. Written by someone who actually contributes code to the Windows NT kernel, the comment on Hacker News, later deleted but reposted with permission on Marc Bevand's blog, paints a very dreary picture of the state of Windows development. The root issue? Think of how Linux is developed, and you'll know the answer.
Linked by Thom Holwerda on 05/08/13 14:22 UTC
This is one of those news items that's fun to write, fun to read, fun to comment on, and where no one will be able to say anything unkind. It's all just one big ball of awesome fluffiness. TuneTracker, the BeOS radio automation software, has just released something very special: TuneTracker System 5, the first version designed entirely and specifically for Haiku. In fact, it actually includes Haiku in the software package. Better yet, TuneTracker also unveiled several system-in-a-box products - which have Haiku and TuneTracker pre-installed.
Linked by Thom Holwerda on 05/02/13 15:28 UTC
Exactly twenty years ago, a document was published that played a huge role in establishing the web as we know it today. Twenty years later, and this simple and straightforward document is proof of an irrefutable fact: while closed technologies can change markets, open technologies can change the world.
Linked by Thom Holwerda on 04/29/13 21:06 UTC
Oh multitasking. That staple of computing that got thrown out the window with many modern smartphones. We got some rudimentary thing in its place - but even as multitasking on phone and tablets improves, its user-visible side remains cumbersome. Windows 8 has a neat implementation, and now it's time Android follows in it footsteps.
Linked by Thom Holwerda on 04/24/13 22:24 UTC
They're here! Whether that excites you or not remains to be seen, but the Galaxy S4, which will most likely become the best selling Android smartphone of the year by a huge margin, has been reviewed by all the major sites, and there's lots of interesting conclusions in there - although I think most of you will get the gist.
Linked by Thom Holwerda on 04/18/13 11:21 UTC
Nokia has posted its quarterly results for the first quarter of 2013, and just like the quarters that came before, there's not a whole lot of good news in there. The rise in Lumia sales still can't even dream of making up for the sales drop in Symbian phones, and when broken down in versions, the sales figures for Windows Phone 8 Lumias in particular are very disappointing. In North America, Nokia is getting slaughtered.
Linked by Thom Holwerda on 04/16/13 9:29 UTC
The day has finally come: Google has started shipping Google Glass to the lucky few early adopters. Now that it's shipping, Google has also unveiled a lot more about the API and the specifications of the device itself. While the company had already given out substantial details at earlier occasions, there are still a few surprises here.More Features »
Sponsored Links
Member since:
2005-07-06
... but can be out-performed on many machines by a decent assembler programmer. "
As CPUs became more orthogonal, I bet the advantage eroded pretty quickly. Compilers can just keep track of more information to make better decisions on optimizations, such as efficient register scheduling.
And it's poor software engineering to dive straight into assembly without finding the bottlenecks first. Even small micro-controllers like PIC are better programmed in C first with a directed migration to assembly based on performance requirements.
Except for the smallest of embedded systems, C is perfectly viable using something like Contiki ( http://www.contiki-os.org/ ).