[Pharo-project] [ANN] SqueakNOS update released!

Javier Pimás elpochodelagente at gmail.com
Mon Mar 21 17:30:25 CET 2011

For all those who may be intrested, we are glad to announce that we have
just uploaded an updated version of SqueakNOS to our site. You can find the
updated download links here <http://squeaknos.blogspot.com/p/download.html>.

This release adds the following items to the previous version: (99.9%
modeled with objects)

- Improved support for ATA devices access
- Implementation of a model of files and directories
- Implementation of FAT32 filesystem
- Support for reading sources from the hard disk
- Support for X86 paging setup and handling of page faults
- Implementation of a model of free and used memory
- Implementation of image snapshotting (based on the paging mechanism)
- Based on Pharo, but also supporting Squeak and Cuis
- Added some primitives for communicating between VM and image
- Support for Alien and FFI
- Added basic support for writing to serial via VM so that it's possiblo to
out debug info to the outside world.
- Added pretty basic ATA benchmarks
- Added some scripts to automatize work done from the outside world
- Many code cleanups

Future directions are:

- Support for Cog VM
- Investigate replacing SqueakNOS plugin with NativeBoost so that we do more
on the image
- Offloading memory pages to disk
- More tests
- Benchmarks

For the brave ones, remember that you can always generate a SqueakNOS image
by using the ConfigurationOfSqueakNOS (which is a bit outdated now), or by
manually loading the packages from monticello. Also to generate a SqueakNOS
VM download its code from GIT (hosted on sourceforge.net).

Don't forget to visit squeaknos.blogspot.com for news and instructions. We
hope to be able to write more soon.

Many thank's t all the people who made it possible to understand the code
and to develop all this.

SqueakNOS' Team

Javier Pimás
Ciudad de Buenos Aires
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