Nick Renieris VelocityRa

GPU Optimization for GameDev

Graphics Pipeline / GPU Architecture Overview

2011 - A trip through the Graphics Pipeline 2011
2015 - Life of a triangle - NVIDIA's logical pipeline
2015 - Render Hell 2.0
2016 - How bad are small triangles on GPU and why?
2017 - GPU Performance for Game Artists
2019 - Understanding the anatomy of GPUs using Pokémon
2020 - GPU ARCHITECTURE RESOURCES

WannaCry|WannaDecrypt0r NSA-Cyberweapon-Powered Ransomware Worm

Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.
Ransom: between $300 to $600. There is code to 'rm' (delete) files in the virus. Seems to reset if the virus crashes.
Backdooring: The worm loops through every RDP session on a system to run the ransomware as that user. It also installs the DOUBLEPULSAR backdoor. It corrupts shadow volumes to make recovery harder. (source: malwarebytes)
Kill switch: If the website www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com is up the virus exits instead of infecting the host. (source: malwarebytes). This domain has been sinkholed, stopping the spread of the worm. Will not work if proxied (source).

update: A minor variant of the viru

GSBASE and FSBASE

When you're running out of registers while writing a JIT, you might resort to more unconventional methods for memory access. You might choose to resort to segment registers if you need a fixed register for memory offsets.

Instructions such as:

lea    rax,gs:[rcx+rdx*8]
mov    rax,gs:[rcx+rdx*8]

would then be available for your use.

	// ==UserScript==
	// @name Medium Paywall Bypass
	// @namespace Violentmonkey Scripts
	// @run-at document-start
	// @match ://.medium.com/*
	// @grant none
	// @version 2.4_3
	// @inject-into content
	// @updateURL https://gist.githubusercontent.com/zzJinux/364725e7c61810719286d94e88a4e38c/raw/medium.user.js
	// @downloadURL https://gist.githubusercontent.com/zzJinux/364725e7c61810719286d94e88a4e38c/raw/medium.user.js

	// ==UserScript==
	// @name Medium Paywall Bypass
	// @namespace Violentmonkey Scripts
	// @run-at document-start
	// @match ://.medium.com/*
	// @match ://medium.com/
	// @match :///*
	// @grant none
	// @version 2.4
	// @inject-into content

	/**
	* K.jpg's OpenSimplex 2, smooth variant ("SuperSimplex")
	*
	* More language ports, as well as legacy 2014 OpenSimplex, can be found here:
	* https://github.com/KdotJPG/OpenSimplex2
	*/

	public class OpenSimplex2S {

	private static final long PRIME_X = 0x5205402B9270C86FL;

	#!/usr/bin/perl
	#fetch Gravatars

	use strict;
	use warnings;

	use LWP::Simple;
	use Digest::MD5 qw(md5_hex);

	my $size = 90;