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Published on 2010-03-30T22:08:19Z
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What is the shortest way to fetch a value from memory in X86 Assembler?
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I'm currently studying engineering in Telecommunications and Electronics and we have migrated from assembler to C in microprocessor programming. I have doubts that this is a good idea. What are some advantages and disadvantages of C compared to assembly?
The advantages/disadvantages I see are:
Advantages:
I…
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I'm a total beginner when it comes to computer languages, and was asked for a code to write .NET with assembler x86, and i'm stuck here at the moment.
Any basic code lines would work, still couldn't find any on the web.
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One of the stated reasons for knowing assembler is that, on occasion, it can be employed to write code that will be more performant than writing that code in a higher-level language, C in particular. However, I've also heard it stated many times that although that's not entirely false, the cases…
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I've been a developer since 2009 and I've learnt a lot of languages since, but I've always wanted to understand and be able to code in the lowest level language so I can directly (or at least very close to directly) speak to machines through my code.
There was a point in time when someone showed…
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Since a long time I have thrived for being able to program something I can take with me - a very small computer like a programmable calculator, gameboy, pocket PC or cellphone.
However, I didn't find anything fitting yet!
The thing I'm looking at is the price, because I can't afford to spend too…
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I've been having an issue with 'sudo apt-get update' for several days now. I've tried every proposed solution I could find but to no avail. Here is the output to 'apt-get update'.
Ign http://us.archive.ubuntu.com precise InRelease
Ign http://us.archive.ubuntu.com precise-updates…
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I have a problem with sudo apt-get update that I can't seem to fix and It's causing problems with alot of installations I want to do. I run Ubuntu 12.04.
Ign http://ftp.availo.se precise InRelease
Ign http://ftp.availo.se precise-updates InRelease
Ign http://ftp.availo…
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I can't upgrade old Ubuntu 9.10 to new, if I check for upgrade it says:
Could not download all repository indexes
*Failed to fetch ttp://security.ubuntu.com/ubuntu/dists/jaunty-security/main/binary-i386/Packages 404 Not Found
Failed to fetch ttp://security.ubuntu.com/ubuntu/dists/jaunty-security/restricted/binary-i386/Packages…
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I have a fresh install of Ubuntu 11.10 from the iso 'ubuntu-11.10-desktop-amd64.iso'. I installed this in VMWare Fusion 4.1.1 running on OSX 10.7.3. When setting up the VM, I allowed easy install to take care of creating my user and installing VMWare tools. No problems during installation, everything…
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How do I fetch all 'link' entries exept those with an 'url' column that is blank? My controller looks like this:
def show
@user = User.find_by_username(params[:username])
@links = @user.links.all
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml…
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