aUCBLogo-4.65 is a port of my UCBlogo version to the OpenGL graphics library. The core has only slightly been changed since the last version (4.64): Two new Warnings have been added, so you can easier port programs from UCBLogo and MSWLogo. They're displayed when a variable has the same name as a proc or a primitive.
Supported platform is still only Windows 9x and newer, where OpenGL exists. Porting aUCBLogo to wxWindows and Linux is on my project list.
New are antialised lines, polygon rendering andtexture mapping (with bugs, but nice though).
Also, to use the free Crimson Editor, I changed the startup behavior. Now if you call Logo.exe with a xxx.lg file name parameter (logo.exe xxx.lg), then the file will be loaded and the procedure xxx will be executed.
This is cool because so you can write your Logo programs in an editor like Crimson and then execute your program with just one hot key (if you assigning one, which I intensly recommend). The Crimson syntax file in the Crimson subdirectory is of course updated, too. You should copy the /Crimson/ directory to your Crimson Programs directory to enable syntax highlighting.
A MS HTMLHelp file (aUCBLogo.chm) is new in this package. So you can call in Logo the help with F1, and even better, include the .chm in Crimson, so you have the F1 help there, too (using Crimson´s Tools/Conf. User Tools menu to configure).
The comparsion operators now should work, even with strings. If one of the arguments is a number, then the other argument will be converted to a number if possible. Ifnot possible, then a string compare is done.
On converting from MSWLogo or UCBLogo you should replace all dots . to _ because the dot . is the item operator in aUCBLogo. Also, = should be changed to ==, because = is the assignment operator, == is the comparsion operator. But the biggest hurdle are variables which have the same name as a procedure or a primitive. In such a case I mostly rename i.e. a variable "list" to "list_".
Also, I've ported some of the cool CSLS demos to work with aUCBLogo (basic, pascal, diff).