Archive for the ‘Uncategorized’ Category

SMC (Self modifing code) under Linux with GAS

Tuesday, April 14th, 2009

With the Gnu Assembler (also known as GAS) it is quite simple to write self modifying assembly code. The only issue is that you can't make the text section directly self modifiable you have to create a new section: .section .text .globl _start _start: jmp modifing # directly jump in the smc ...

Free lifting for a space elevator

Wednesday, January 7th, 2009

As I was reading an article about a new kind of lifter for the space elevator, I started thinking about the energy you would need to bring anything to the geostationary orbit. I also remember thinking that over the geostationary orbit, moving still upward gives you energy. If you imagine ...

Why is programming repetitive ? Was Turing wrong ?

Saturday, December 13th, 2008

Instruction tables will have to be made up by mathematicians with computing experience and perhaps a certain puzzle-solving ability. There need be no real danger of it ever becoming a drudge, for any processes that are quite mechanical may be turned over to the machine itself. Alan Turing In essence Turing was ...

Using grep to search in files

Wednesday, November 5th, 2008

I'm moving away from eclipse and more and more into the wonderfull (and cold) world of the command line. So I need to search for file that contain something in the current directory and its subdirectories all the time grep -R "something I'm searching for" . Grep is the way. And with some ...

Finally installed archlinux

Wednesday, November 5th, 2008

That's it, the new ubuntu was coming and I was thinking, I'll get gimp 2.6 and tabs in nautilus ... But I should wait a few days before updating cause update is always buggy the first days ... And fuck that I wanted to install archlinux anyway (it's just that I ...

Gimp 2.6 is out !

Wednesday, October 1st, 2008

I'm using GIMP 2.4 at my job to make a website and I heard a lot of people bad-mouthing it so I expected having a bad time with it, but it's really usable. And I had no experience of it before, my previous experience of photo editing takes me back ...

We are just like C

Friday, September 26th, 2008

Dear blog, it's been long since I last talked to you, but I felt like doing it tonight. This is the unfaithful transcription and translation of a chat I had tonight. me: Math sucks. mister M: That's not what you told me 10 minutes ago when talking about the number theory described ...

Linux distros

Tuesday, July 22nd, 2008

I found a cool schema that I hadn't seen before on reddit today: the linux distro timeline. We notice three main roots Debian the community distro, Slackware the one man distro and Red Hat the company developed distro. I guess everyone know them, nothing to see move along. What's interesting ? The ...

What are your chances of hitting a fly with a tennis racquet?

Friday, July 18th, 2008

Just one of the problems that I finished solving a few hours ago for google code jam. It's the first time I tried a programming competition, and it's a pretty interesting one. Problems are hard but solvable and you always get a few sample inputs and outputs, which is really ...

Good news everyone ! Futurama: the beast with a billion backs is out

Sunday, July 13th, 2008

Futurama: the beast with a billion backs is out in DVD in the US and Canada and illegally on the internet for others, may it lead to the end of civilisation. This is a must watch. Futurama is as witty and fun as ever. You will have the honor to ...