Monday, February 19, 2007

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SPIM for Nokia 770/800: MIPS processor simulator

SPIM is a simulator of the MIPS processor that allows you to run assembly code written for MIPS processors on a standard PC.

SPIM was available until now "only" for Windows, Linux and Mac

Whether you need for fun, I ported this simulator for the Nokia 770/800 DEVICES.

You can download it from ' I set up a special page.

Wednesday, February 7, 2007

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Skype reads your BIOS and motherboard serial

you can 'trust a closed source software?

The answer is obviously no and Skype is yet another demonstration living.

What if they do this utilizzatissimo VOIP telephony program information that are written in my BIOS? And 'what is this blogger also asked (from which I took the news).

As we realized this thing? Running Skype on Windows 64-bit you get an error similar to this:

The program or feature "\\? \\ C: \\ Documents and Settings \\ Myria \\ Local Settings \\ Temp \\ 12 \\ 1.com" can not start or Incompatibility with to run two 64-bit versions of Windows. Please contact the software vendor to ask if a 64-bit Windows compatible version is available.

disassembling the executable 1.com we could go back to what he did that code. In summary takes care of reading the BIOS information (including the serial motherboard) and send the information to Skype.

Thanks to a careless programmers of Skype this thing was discovered. If they were more 'experts and they knew that NTVDM (a layer that allows programs to run on Windows DOS/16bit 32bit in a transparent manner) was not implemented on Windows 64bit, this thing probably would never have emerged (or at at least not so easily).
Initially, some have argued that there may be a method to detect the type of processor and then decide if a PC is able or not to perform a certain statement (to avoid errors of execution). Too bad that there are methods much more 'portable to carry out this task and that the operating system provides all the necessary information without going to need to read data directly from the BIOS.

then what is this data? We'll see if the company wants in the coming days to clarify its position on this discovery.

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N800: now it turns out even the FM radio!

Nokia devices do not stop more 'to surprise us. It 's the case of the Nokia N800 , which until a few days ago he managed to keep secret an FM receiver.

seems to have noticed a developer of Maemo (operating system behind Nokia 770/800) in a arrived in the mail mailing list for development.

The FM chip in question appears to be a TEA5761 FM-Radio, and you can check eseguento this command as root:

cat / sys/devices/platform/i2c_omap.2/i2c-0/0-0010 / name

E 'already have an application that allows you to use the integrated FM radio and can be downloaded from this link .

Sunday, February 4, 2007

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Installing Maemo SDK for Nokia 770 and Nokia Gizmo

Maemo is an opensource development platform for handheld devices based on Linux. Currently it is the basic operating system that is installed on Nokia 770 and 800 , but could theoretically be used (with few changes) from other similar devices.

The SDK provides (in addition to the compiler and libraries) a real environment that emulates the handheld device end, so as to allow the developer to test and debug both programs running at the command line, and those visuals.

The graphical environment is based on a real X server a window manager and GTK + libraries with a particular extension called Hildon .

By Maemo SDK, you can:

  • test applications written for Maemo, using a standard PC with Linux.
  • Write and debug applications written by us.
  • to port existing applications written for Linux / GTK + and test it.
  • Compile and prepare packets for the Armel platform so that they are installed on the end device.
The complete howto is available on the wiki PtLUG .

Thursday, February 1, 2007

Breastfeeding And Tendonitis

770/800: VOIP portable solution

For those who still do not know, Gizmo is a software that allows you to make calls through the Internet.

As with other similar software, Gizmo is also cross platform and is available for Windows, Linux and OSX.

has recently been ported to this application for Nokia devices Nokia 770 and 800, or the two models of Nokia's Internet Tablet. This program allows then to transform our handheld device into a true mobile VOIP, given the increasing spread of wireless networks and public access as it allows you to make calls, in addition to other Gizmo users, even to landlines and mobiles around the world.

call landlines and mobile phones of course has a cost, but if you call another Gizmo user, not exactly so. Calls to the landline number of another Gizmo user is free indeed. For example, if Mario is a user wants to call Luigi and Gizmo (Gizmo other user) is sufficient that they both have entered in your profile the number of home phone or office (who, wishing to be visible only to persons who are among our contacts and not at all).

A small note regarding the versions available for both devices. According to the website of Gizmo on the Nokia 770 the latest version is 1.1, while for the Nokia 800 the latest available is 2.0. Gizmo does not recommend installing the version for the N800 on the N770, but I can assure you that this no problem (having personally tested) and that everything runs smoothly.

The hope now is that other VOIP software are ported to this device, such as OpenWengo and Skype, so as to further increase the communication possibilities of this fabulous device.