Ayke van Laëthem

Optimizing constant bitshifts on AVR

The AVR architecture does not natively support arbitrary bit shifts. Therefore, compilers will have to be creative to make shifts short and fast. This post explores how a compiler could emit such constant shifts inline.

Garbage collection in TinyGo

An explanation of how garbage collectors work including some pseudocode how a real GC could be implemented.

ESP32 and ESP8266 support in TinyGo

How ESP32/ESP8266 support got added to TinyGo, how we got there, and the current status of support.

Debug AVR programs using simavr and avr-gdb

Quick note to get started with debugging AVR programs in a simulator

What RGB and sRGB mean

What RGB really means, what sRGB and gamma are and how to correctly blend colors.

DMA on the SAMD21

How to configure DMA on the SAMD21, for example to use it with SPI.

How the TinyGo playground simulates hardware

The TinyGo playground simulates real hardware, including an e-paper display. How can it do such things? This post explains a bit about how the playground works to make this possible.

LLVM from a Go perspective

A high-level overview of LLVM IR, showing how two simple Go functions can be translated to IR.

Goroutines in TinyGo

TinyGo uses LLVM coroutines to implement goroutines. This post explains what coroutines are and how they're used to implement goroutines.

Interfaces in TinyGo

How TinyGo implements Go interfaces in a radically different way, avoiding most memory allocations and reducing code size.