SIDCog v1.3 produces C64 sound on Propeller

Johannes Ahlebrand has released version 1.3 of SIDCog. This Spin language object emulates the famous sound chip in the Commodore 64 running in a single Propeller cog. The developer reports it’s much closer to the 8580 than the 6581 when it comes to filter emulation and combined waveforms. Features include a 31kHz sample rate, >16bit […]

Competition Pro retro joystick USB adapter

Markus decided to reuse an old Commodere 64 Competiton Pro joystick, so he added a USB adapter to it. The retro joystick uses a simple interface over the D-SUB 9 connector, using one connection for each movement direction and one connection per button. He used a PIC24FJ64GB002 microcontroller to translate the native joystick interface to […]

CommodoreFree online magazine

If you are into retrocomputing with the Commodore C64 or clone then you will be interested in reading CommodoreFree. This is a free online magazine which has been published since 2007 and is now in its 53 issue. You can download all issues beginning with number 4 from the CommodoreFree website in PDF, text, Epub […]

C64 sound on Parallax Propeller

The eight-core Parallax Propeller is capable of some pretty amazing things. One use developed by Johannes Ahlebrand is to emulate the famous Commodore 64 sound chip. His SIDcog V 1.0 code object allows the Propeller to accurately emulate an original C64 SID chip. With this code, your Prop can produce retro C64 game sounds like […]