Hi guys. As you may know, I finished my PhD in Computer Science in France and I am now back in my country, Argentina. I have started working as a freelancer/consultant/contractor/independent. If you are interested in discussing with me, please send me a private email. For a long time, Pharaoers and Squakers have been asking … More Headless support for Cog Cocoa VM
This post is mostly a reminder for myself, because each time I need to do it, I forget how it was 🙂 There are usually 2 cases where I want that the VM halts (breakpoint): 1) When a particular message is being processed. 2) When there is an assertion failure. CogVM has some kind of … More Halting when VM sends a particular message or on assertion failures
Hi. As usual, I wanted to share with you the slides of my last talks in case you are interested. PharoConf Last month I went to the first PharoConf held in Lille, France, and I gave to talks. One was about using the Fuel serializer for several different hacky things 🙂 You can find the … More My (past) presentations at PharoConf and (future) talk at ESUG 2012
Last days I needed to migrate some old code I used to have in the VM for tracing objects usage. Luc Fabresse also wanted to be able to set and get the value of a bit in the object header to do some experiments. So…we thought it was a good idea to make it abstract … More ExperimentalBit
Hi. After a couple of months talking about other stuff like Fuel, and presentations in conferences such as ESUG and Smalltalks, I would like now to continue with the “Journey through the Virtual Machine” for beginners. So far I have written the first and second part. Consider this post the first one of the third … More Memory Addresses and Immediate Objects
In the previous post we saw different things: what is a primitive and some examples, their impact on CompiledMethod instances, pragmas, etc. Continuing with this “Journey through the Virtual Machine”, today I will talk about Named Primitives. Important data from previous post What is important for this post is a summary of what a primitive … More Named Primitives
Hi all. It this post I will give you a quick overview and introduction to bytecodes. I won’t talk that much because this topic is well explained in the Blue book, in the code, etc. In the previous posts we saw that a CompiledMethod is all about bytecodes and literals (ok, and a header and … More Introduction to Smalltalk bytecodes
Hi folks. I guess that some readers do not like all the building part and want to go directly to see the VM internals. But it is really important that you understand how to change the VM, compile it or even debug it. Otherwise, you’ll be very limited. This post is mostly about a couple … More Building the VM – Second Part
So…this is the post all hackers were waiting for! Take a beer, open your Pharo image and prepare your terminal 🙂  In this post, we will see how to build a VM from scratch. I will use Mac OS along this post, but I will also explain how to build in Linux and Windows (yes, … More Building the VM from scratch using Git and CMakeVMMaker
You want to compile your own VM, don’t you? Compiling the VM just for compiling it and following some instructions is not really helpful, otherwise why don’t you directly download the VM binary ? My idea with this sequence of posts is that you understand and learn about the VM. So…in order to compile the … More First stop: VM’s SCM and related stuff
Mariano Martinez Peck 