02. March 2020

Device Drivers in Loko Scheme

Loko Scheme is an R6RS Scheme compiler that runs on Linux and bare metal. To be useful on bare metal it needs device drivers. One of the more interesting device drivers is the virtio net driver, which paves the way for more virtio drivers.

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02. March 2020

Loko Scheme 0.4.3

Loko Scheme 0.4.3 is now out with a few important fixes, new features and network card drivers for eepro100, rtl8139, virtio net and Linux tuntap devices. The include form is now available and #u8() is recognized. Hashtables are written using Racket’s #hasheq() syntax, and cycles are handled while printing records.

Read more about the drivers in the companion article Device Drivers in Loko Scheme.

10. November 2019

Booting a Video BIOS

Graphics. Video! How do you get even basic graphics running on a PC? One way is to use the expansion ROM on the graphics card. Loko Scheme 0.3.4 is out now and comes with a rudimentary VBE driver that uses this method.

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02. October 2019

A New R6RS Scheme Compiler

Some readers already know this and a few have suspected. I’ve been working on a new R6RS Scheme compiler for a while. Now I have released it as free software. Read on to learn the many wonderful drawbacks of this niche compiler.

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