Enabling HYP mode on the Raspberry Pi 2

The newest iteration of the wonderful machine designed by Raspberry Pi Foundation, the Raspberry Pi 2, sports a Broadcom BCM2836 SoC, with four Cortex-A7 cores. The Cortex-A7, being the little brother Cortex-A15, features the ARM Virtualization Extensions, so both Xen and KVM based virtualization should work on it. At this point, you probably are wondering why would someone want to use virtualization on a RPi2. In addition to the usual “because you can!

Running Alan Cox's Fuzix OS on a Z80 emulator

This past Halloween, Alan Cox announced Fuzix OS, a project for building a UNIX-like operating system for 8 bit computers, based on UZI sources. This OS targets a number of physical machines, both old and homebrew computers, and some emulators too. The easiest and more approachable way for trying Fuzix OS is running it on cpmsim, which comes bundled inside the Z80pack package. If want to give it a try the easy way, just continue reading.