Jesús A. Álvarez zydeco

A guide to building and using the audio-enabled "Screamer" fork of PowerPC QEMU on macOS and Windows

Karen/あけみ (Twitter, Homepage)

Last updated: 2021/10/09 (QEMU-screamer version 6.1.50)

Here's a quickly-written guide describing how to build and use mcayland's excellent "Screamer" fork of QEMU which adds working audio support to QEMU for PowerPC guests!

Yes, this means working audio in PowerPC versions of OS X, Mac OS 9, and even Linux!

This guide isn't… quite up to my quality standards yet, but I figured I'd release it in this state regardless for anyone that might benefit from it, especially since I had to figure out quite a bit of this myself due to some of the existing documentation being somewhat outdated or incorrect.

Block Storage & Network Protocol Changes

Paletted chunks & removing BlockIDs brings a few big changes to how blocks are represented. In Bedrock, Blocks used to be represented by their 8 bit ID and 4 bit data; this means that we can only represent 256 blocks and 16 variants for each block. As it happens we ran out of IDs in Update Aquatic, so we had to do something about it :)

After this change, we can represent infinite types of Blocks and infinite BlockStates, just like in Java. BlockStates are what is sent over the network as they are roughly equivalent to the old ID+data information, eg. they're all the information attached to a block.

BlockStates are serialized in two ways:

PersistentID: a PersistentID is a NBT tag containing the BlockState name and its variant number; for example

NokiaTool: control MediaTek-based Nokia phones from your PC

Overview

NokiaTool is a simple Bash script (nokiatool.sh) that allows you to use an undocumented serial connection in USB-enabled MediaTek-based Nokia feature phones manufactured by Microsoft (even the most basic ones, like the new 105) in order to control them from your PC.

This project is an ongoing work and uses only some bits and pieces of information about the phone internals available to the public, so under any circumstances don't consider it stable or a replacement for official tools if any are present.


	/* How to Hook with Logos
	Hooks are written with syntax similar to that of an Objective-C @implementation.
	You don't need to #include <substrate.h>, it will be done automatically, as will
	the generation of a class list and an automatic constructor.

	%hook ClassName

	// Hooking a class method
	+ (id)sharedInstance {

	//
	// main.m
	// wwcd15sessionlister
	//
	// Created by Steven Troughton-Smith on 10/06/2015.
	//

	#import <Foundation/Foundation.h>

	int main(int argc, const char * argv[]) {