Learning to Read x86 Assembly Language - Pat Shaughnessy
Writing assembly language is something best left for the experts. To write code that runs directly on your microprocessor you need to know how memory segmentation works, what the intended use of each register is, how codes executes in real and protected modes and much, much more. And, of course, modern compilers will usually produce faster, more optimized code than you ever could, without making a
How Big is a Bignum? - Pat Shaughnessy
Ruby represents small integers using Fixnum and large integers using Bignum. Most of us don’t use Ruby to perform complex calculations for science, engineering or cryptography applications; instead, we might turn to R, Matlab or some other programming language or tool for that sort of thing. When we calculate values using Ruby, it’s often to process simple values while generating a web page using
Visualizing Garbage Collection in Ruby and Python - Pat Shaughnessy
Note: This post is based on a presentation I just did at RuPy in Budapest. Instead of just posting my slides I thought it would be more useful if I wrote it down as a blog post while it’s still fresh in my mind. I’ll post the video link here when the RuPy folks have it online. FYI I’m planning to do a similar presentation at RubyConf, except I’ll remove the Python info, and instead compare how GC
How Ruby Borrowed a Decades Old Idea From Lisp - Pat Shaughnessy
This is the last of a series of free excerpts from an eBook I’m writing called Ruby Under a Microscope. I plan to finish the book and make it available for purchase and download from this web site before RubyConf 2012 on Nov. 1. You can still sign up here, if you haven’t already, to receive an email when the book is finished. I plan send that one, single email message out to everyone before Novemb
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