Free things to remember software for linux

PHPImageMage is a PHP5-class that acts as an API and simplifies many of the things most commonly done to images in Web applications. PHPImageMage handles JPEG, PNG, and GIF images and requires PHP5 with GD support.

phpSysInfo is a PHP script that displays information about the host being accessed.

It will displays things like:
Uptime
CPU
Memory
SCSI
IDE
PCI
Ethernet
Floppy
Video Information.

gnome-terminal is the GNOME terminal emulator application. gnome-terminal is only the shell (menubar, prefs dialog); the terminal emulation ("stuff in the middle") comes from the VTE widget. Remember this when choosing a bugzilla component.

How it works:

Profiles:
all settings are stored in profiles. prefs dialog edits the current profile

Session:
just the number of open windows/tabs and their profile is stored per-session

Command line options:
do not overlap things that are preferences

MOS 6502 Simulator is sort of an emulator for a 6502 chip. Theres virtually nothing apart from the CPU (minus BCD operations). It also bears no heed to instruction timings.

Whilst (apart from those two things) it successfully simulates the CPU there were a few design flaws, which led me not to continue with it:

- I wrote it in C++.

As the 6502 had no dedicated IO bus, everything was done via memory. I had the idea of having a pure virtual class which provided a generic interface, then as I wrote devices to sit in the memory space, they could just override portions of it, or trap on writes or something.

Whilst writing this, I kept getting the feeling I should have written it in asm instead Especially for manipulating flags and rotates and stuff. (as I could have just rotated AL, for example, rather than the mess I have in the C++ code.

- Sloppy instruction decoding.

I originally set out to decode the instructions properly, but there were lots of exceptions to the system used (esp. if I intended to support the 65C02 for example). This decended into a massive switch statement. I almost considered splitting it up to smaller files, and just #include them in the middle, just to make it more managable.

Also, as they are not in numerical order (grouped according to type, or addressing mode, cant remember atm) it wouldnt compile to a jump table. Does with optimisation on though.

The main thing that prompted me to write this was I found my BBC-B in the loft, and felt a pang of nostalgia for the hours wasted hunched over it in the lowest resolution text mode (IIRC mode 7 to save ram). I had the idea of writing a NES or BBC emulator, however it didnt get that far.

It has a pretty simple image format. The file must be >= 65536 bytes (64k) and that is simply the memory image for the system (16-bit address bus). There is a strange sort of ASCII text display at 0x200, which is ok enough for spewing a string to. As it was just thrown together in the space of 6 hours or so (took a long time to do the switch statement) its not very thouroughly documented, but hey.

Sessinfo is a Gnome Session Information Display.

This is a Gnome application thats intended to be a semi-graphical equivalent of the messages that you normally get with a command-line login session.

So far, its not very graphical. Future versions might include such things as a graphical banner and graphical panes.

php_writeexcel is a port of John McNamaras excellent Spreadsheet::WriteExcel Perl package to PHP. It allows you to generate Microsoft Excel documents on your PHP enabled Web server without any other tools.
Ive included six example PHP scripts which are also taken out of the
Spreadsheet::WriteExcel package and ported to PHP:
- example-simple.php
- example-merge2.php
- example-stocks.php
- example-textwrap.php
- example-demo.php
- example-bigfile.php
All you have to do is to tar xzvf the package to a directory accessible via a web server. Then fetch any of the example scripts with your favourite web browser and Excel should come into place and show you a sheet.
Basically all features of Spreadsheet::WriteExcel are supported and thanks to a lot of people (see CHANGELOG) who contributed code and bug fixes, most things seem to work. However, please remember that its still in beta stage, so there are probably some bugs left.
Spreadsheet::WriteExcel uses the Parse::RecDescent package for formula support. Andreas Brodowski has imported and changed the PEAR::Spreadsheet Parser.php file, so formulas are supported since version 0.2.2.
Spreadsheet::WriteExcel uses the OLE::Storage_Lite package for supporting Excel files bigger than approx. 7 MB. I have ported this package already and called it php_ole. But I really dont know how reliable it is, so use it with care!
Enhancements:
- PHP5 compatibility has been added.
- Several bugs have been fixed.