Some Assembly Required*

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• Some Assembly Required*: 2022

  A blog about coding in general and assembly language in particular. Basically, trying to understand how it all works.

• Some Assembly Required*: Bounded ranges, constrained or clamped values

  Some Assembly Required* Tuesday, 17 January 2012 Bounded ranges, constrained or clamped values So, given the ability to build a jump table for a range of input, it would be useful to transform a g...

• Some Assembly Required*: Interpreting readelf -r, in this case R_X86_64_PC32

  Some Assembly Required* Saturday, 30 June 2012 Interpreting readelf -r, in this case R_X86_64_PC32 Having just put the monster Relocations, Relocations blog-post to bed, at one point I caught myse...

• Some Assembly Required*: Intel MSR Performance Monitoring Basics

  In the previous post I published code to create, build and install a Linux kernel module which would permit a user to execute a batch of commands to read from or write to Intel MSRs. This post will p...

• Some Assembly Required*: Compare And Swap

  Some Assembly Required* Tuesday, 17 January 2012 Compare And Swap Atomic instructions are used by the OS to provide higher-level concurrency constructs such as locks and semaphores. Probably the b...

• Some Assembly Required*: Fun With MSRs: Counting Performance Events On Intel

  Hi, the last two posts have laid some groundwork for this post, in which I hope to show how you can measure various performance-related events using Intel's MSRs. This post assumes you have at least ...