Title: Scratching the itch, making Scratch for the Raspberry Pie
Speaker: Tim Rowledge
Fri, August 22, 12:00pm – 12:30pm

Abstract: Scratch was originally written in a Squeak 2.8 era image. Much has changed since then and to make the Raspberry Pi run Scratch as well as possible we have ported the code forward to a 4.5 image so it can run on a StackVM; and soon a Cog VM. A substantial amount of Smalltalk code has had to be rewritten to do this and yet we have to maintain complete compatibility with the original system to avoid overloading the teachers that use it in their classes. A new branch of Cog for the ARM cpu is being written as well.

Bio: Tim Rowledge has almost 30 years of Smalltalk experience, and almost as much with ARM. Somehow the two have always gone together.


Slides: http://www.slideshare.net/esug/esug14-scratch-slides

Video Part1: https://www.youtube.com/watch?v=T1wYtSKBuZ0
Video Part2: https://www.youtube.com/watch?v=yEqNuDsj7uo