Coding Archive — Matt Godbolt’s blog

Archive — Coding

July 2024

MSVC and CE: Microsoft Compilers on Compiler Explorer

March 2024

Compiler Explorer, LLC: A small update on the status of CE

June 2022

Happy 10th Birthday Compiler Explorer!: Wishing Compiler Explorer a very happy tenth birthday

January 2021

C++ and passing by value: Some thoughts on passing by value versus reference

September 2019

CppCon 2019 Trip Report: All the best things that happened at CppCon 2019

August 2018

Compiler Explorer's new state storage: Some notes on Compiler Explorer's new storage

July 2018

A European Vacation: Some time away, a talk at Avast, and a new job tomorrow!

May 2018

C++Now - trip report: A last-minute decision to head to C++Now ends up with an even-more last-minute talk

March 2018

March update: Compiler Explorer logo and shop, and more videos

February 2018

Some YouTube videos: Some videos I've uploaded to YouTube

October 2017

CppCon 2017 Trip Report: My experiences at my first C++ conference

January 2017

Compiler Explorer is now on Patreon!: I finally accept that maybe some financial help would be useful

November 2016

Compiler Explorer's embedded view: A new feature in Compiler Explorer: embedded views

September 2016

How it works: Compiler Explorer: I explain how Compiler Explorer runs on Amazon's cloud computing infrastructure

February 2016

Inside the Ivy Bridge and Haswell BTB: In which I apply what I've learned about BTBs to Ivy Bridge and Haswell
Branch Target Buffer, part 2: How many tag bits are used in the Arrendale BTB?
The BTB in contemporary Intel chips: Inside the Arrendale Branch Target Buffer
Branch prediction - part two: First results of BPU behaviour
Static branch prediction on newer Intel processors: Embarking on a branch prediction odyssey

June 2015

Traits and trait objects: Learning more about the guts of Rust
What abuse of compute resources looks like: What happens if you use work's computer resources
Error handling in Rust: A pattern for handling errors in Rust
Further notes on Rust: a second look: After further experimentation with my path tracer, I hit some first issues

May 2015

zindex - index and search large gzipped files quickly: Introducing a gzip searching tool, zindex
The runtime performance of Rust for a simple path tracer: Some notes on Rust performance
Two commutes with Rust: Note and thoughts on Rust, having spent a couple of commutes playing with it
Leaks in javascript: Debugging GCC Explorer's javascript memory leaks
GCC 5.1 on GCC Explorer: More compilers!

March 2015

Seasocks - a quick and easy websocket server in C++: Drawing attention to an open source project of mine

February 2015

Even more compilers for GCC explorer: Yup, even more compilers
Announcing new compilers for GCC Explorer: Yup, more compilers
Experiences with Docker and GCC Explorer: Musings on Docker

December 2014

GCC Explorer's top 10 compilers: Wondering which compilers I can retire from GCC Explorer

June 2014

Elite's crazy tokenised string routine: In which I lift the lid on BBC classic Elite and its text handling
jsbeeb Part Four - IRQs and timers: Emulating a 6502's interrupt behaviour

May 2014

jsbeeb Part Three - 6502 CPU timings: How to get 6502 CPU timings just right when emulating
Emulating a BBC Micro in Javascript - Part Two: More notes on what goes on when you emulate a BBC Micro computer in javascript
Emulating a BBC Micro in Javascript: Some notes on what goes on when you emulate a BBC Micro computer in javascript

March 2014

jsbeeb - a Javascript BBC Micro emulator: Announcing a Javascript BBC Model B Microcomputer emulator

December 2012

!FinalLook - a RISC OS 3.1 hack explained: A trip down memory lane to a hack for RISC OS 3.1 I wrote at University

September 2012

Forcing code out of line in GCC and C++11: A way of ensuring non-hot code is taken out of line in GCC, using C++11 lambdas

June 2012

GCC Explorer - progress update: What's changed since the launch

May 2012

GCC Explorer - an interactive take on compilation: Introducing a new way to stare at the disassembly of your compiled C and C++

August 2011

Vim's quickfix and GCC 4.5: Getting GCC 4.5's error messages parsing in vim 7.3

July 2011

An update to Miracle: An update on Miracle, the Javascript Sega Master System Emulator

February 2011

Introducing Miracle: A Sega Master System emulator in JavaScript

July 2009

Solving the threading problem in WinInet: One possible solution to the problem of cancelling a WinInet request in a thread-safe manner.
Threading issues in the Windows Internet API: A problem with threading that looks simple but turns out to be a headache.

September 2008

Samba PDC problems after changing server IP: A strange problem with Samba PDCs if their IP addresses change.

August 2008

Another weekend and some more data recovery: More fiddling in trying to get NTFS disk data back for my Dad.
Comments on hacking about with stacks: Justin's comments on my investigation of the processor stacks on Windows and Linux.
Hacking about with stacks: An investigation of the processor stacks on Windows and Linux.

July 2008

How to make a pure virtual call: More of an anti-pattern than a how to - avoiding and/or diagnosing pure virtual function calls.
IO Completion Ports - the UNIX equivalents: In which we learn the UNIX equivalents of IOCPs.
IO Completion Ports: One of the better features in Windows. Sadly, very awkward to use correctly.

June 2008

LCD screen hackery: Some ideas on improving the LCD display on the Weebox.

April 2008

The C library's strcmp routine is badly named: My thoughts on the ill-named strcmp function.

February 2008

Launching a debugger automatically: Automatically launching the debugger for a particular executable.
Things I didn't know about Visual Studio's Debugger: Discussing debugger pseudovariables for accessing GetLastError return values.

December 2007

Strict aliasing in C: It's not OK anymore to cast willy nilly in C++. Well, it never was. But it's less so now.
C++ header dependency tricks: Some tricks for reducing dependencies and hence compile times in C++.

November 2007

Ambiguous function overloading in C++: C++ function overload resolution can be rather inscrutable. I try and make sense of a particular case.
The three way handshake of understanding
IRBasic - object-oriented BASIC: An object-oriented BBC BASIC.
More on BASIC line numbers: More on the BBC BASIC binary line number encoding.
BBC BASIC binary line number format: A further look at BBC BASIC's in-memory format, specifically the line numbers.
BBC BASIC V file format: Exploring the BBC BASIC V file format. It's pretty damned clever.
List comprensions in Perl using map {}: A quick comparison of list processing in Perl and Python
List comprehensions in Python: The coolest thing in Python --- list comprehensions.
More things I didn't know about Python: Conditional expressions in Python 2.5
HTML scraping in Python: Discussing a couple of Python libraries designed for parsing real world websites.
Easy Installation with ez_setup: ez_setup: the quick and easy way to install new python libraries.
Python sqlite3 gotchas: A caveat for sqlite3 in Python - if your databases don't fill with data, this might be why.

October 2007

Things I didn't know about Python, part 1

April 2007

Samba & LDAP

September 2006

IncludeManager released!

August 2006

IncludeManager - a #include graph visualiser
Measuring productivity losses due to long builds

February 2006

Godbolt's Second Law

January 2006

StyleManager 1.04 released

December 2005

CRT Heap Fragmentation in Windows

September 2005

ProFactor StyleManager

July 2005

StyleManager update

June 2005

SCons, VS.NET and VSIP

May 2005

ProFactor announcement - StyleManager

April 2005

Godbolt's Law

January 2005

What were they thinking?

June 2004

Floating point

March 2004

Driving me NATty

About Matt Godbolt

Matt Godbolt is a C++ developer working in Chicago for Aquatic. Follow him on Mastodon.