http://peter.molnar.cc It's now or never Mon, 13 Apr 2009 17:17:38 +0000 http://backend.userland.com/rss092 en Recently, I've tried to download a torrent containing several individual files using bittornado and the download stalled at something like 99%, so I needed to check, which of the individual files were downloaded completely. An {{apt-get search}} lead to {{cfv}}, a ''versatile file checksum creator and verifier''. $ sudo apt-get install ... http://peter.molnar.cc/2008/12/20/howto-check-the-integrity-of-a-torrent-download/ Accorring to [http://en.wikipedia.org/wiki/Greenspun%27s_Tenth_Rule Greenspun's Tenth Rule of Programming]: ''any sufficiently complicated C or Fortran program contains an ad hoc, informally specified, bug-ridden, slow implementation of half of Common Lisp.'' That guy's damn right! I think that I've just implemented one. http://peter.molnar.cc/2008/07/20/half-of-common-lisp/ Because I needed USB speakers for my Alix board, I've made a quick search on [http://geizhals.at geizhals.at] and ordered what seemed the most reasonable to me: a pair of ''Techsolo TL-2020'' USB speakers. They were USB powered (+), the price was some 10 Eur (+) and the power 10W (+). ... http://peter.molnar.cc/2008/05/15/usb-speakers-for-my-alix-board/ Recently, I was traveling in the train with a friend and we were talking about programming languages. So I've told him why C++ is among my favorite languages and what I think are its killer features. One of them were templates, and I mentioned that while java generics are implemented ... http://peter.molnar.cc/2008/05/15/compile-time-algorithms-with-c-templates/ The next step after having acquired my Alix 2C3 was to install Debian. Here's the installation procedure in case you want to setup your own one: ++ Partition your CF card Get yourself a CF card reader, plug in the CF card and determine what the device special file for the CF ... http://peter.molnar.cc/2008/04/11/installing-debian-gnulinux-on-a-alix-board/ Recently, I had the need for a small and cheap board, to run a Linux system with my custom application. My requirements for the board were: * Portable and quiet. * For my development cycle to be the shortest possible: it should run the distro I'm the most familiar with: Debian GNU/Linux. * ... http://peter.molnar.cc/2008/04/10/choosing-a-cheap-board-for-my-embedded-app/ My work on the s390 port of CACAO was finished around the beginning of summer 2007. Our criteria for the port to be ''finished'' were: * Passing all benchmarks of the dacapo benchmark suite. * Passing the mauve test suite. This turned out to be useful as some tests have still located ... http://peter.molnar.cc/2008/02/27/what-has-kept-me-busy/ After having followed [http://www.advogato.org/person/twisti/ twisti]'s [http://c1.complang.tuwien.ac.at/cacaowiki/OpenJDK build instructions] on how to build cacao with ``OpenJDK`` as runtime, I've got an ``OpenJDK`` based JRE with Cacao as VM in JIT mode on s390. Here's the usual first real life app run: $ ~/j2re-image/bin$ ./java -cp /usr/share/java/jython-2.1.jar org.python.util.jython LOG: [0x77e626b0] JVM_GetStackAccessControlContext: IMPLEMENT ME! LOG: [0x77e626b0] ... http://peter.molnar.cc/2007/08/16/jython-ever-more-exciting/ I've run the dacapo benchmark against cacao/s390 and compared the results with IBM's java 1.4 and 5.0 for s390. A prerelease of Java 6.0 is also available from IBM, but benchmarking is prohibited. The benchmarks were run on a **virtual machine** with 256 MB RAM and a lot of swap on ... http://peter.molnar.cc/2007/07/01/cacaos390-dacapo-results/ Finally, eclipse is running on cacao/s390: [[image eclipse.png align="center"]] [[image eclipse_about.png align="center"]] http://peter.molnar.cc/2007/06/27/eclipse-on-cacaos390/