vrgtms

Foreward

This document was originally written several years ago. At the time I was working as an execution core verification engineer at Arm. The following points are coloured heavily by working in and around the execution cores of various processors. Apply a pinch of salt; points contain varying degrees of opinion.

It is still my opinion that RISC-V could be much better designed; though I will also say that if I was building a 32 or 64-bit CPU today I'd likely implement the architecture to benefit from the existing tooling.

Mostly based upon the RISC-V ISA spec v2.0. Some updates have been made for v2.2

Original Foreword: Some Opinion

The RISC-V ISA has pursued minimalism to a fault. There is a large emphasis on minimizing instruction count, normalizing encoding, etc. This pursuit of minimalism has resulted in false orthogonalities (such as reusing the same instruction for branches, calls and returns) and a requirement for superfluous instructions which impacts code density both in terms of size and

Genomics - A programmer's guide.

Andy Thomason is a Senior Programmer at Genomics PLC. He has been witing graphics systems, games and compilers since the '70s and specialises in code performance.

https://www.genomicsplc.com

How to upgrade a Heroku PostgreSQL database to a new plan

I started a project on a Hobby Dev plan (free, limit 10,000 rows), and then later needed to upgrade it to Hobby Basic ($9/month, limit 10,000,000 rows).

After assigning the new database, I had two databases attached to the application. They looked something like this:

HEROKU_POSTGRESQL_OLIVE (postgresql-dimensional-3321) Old, free-tier (Hobby Dev) database

Orthodox C++

This article has been updated and is available here.

Introduction

C-a == Ctrl-a
M-a == Alt-a

General

:q        close
:w        write/saves
:wa[!]    write/save all windows [force]
:wq       write/save and close

	# Syntactic Grammar for ECMAScript

	ecma-script-module ::= { top-level \| ignorable }

	top-level ::= statement
	\| function-declaration
	\| class-declaration

	function-declaration ::= [ "async" ] "function" identifier function-params-postfix compound-statement

	// Mini memory editor for Dear ImGui (to embed in your game/tools)
	// Animated GIF: https://twitter.com/ocornut/status/894242704317530112

	// THE MEMORY EDITOR CODE HAS MOVED TO GIT:
	// https://github.com/ocornut/imgui_club/tree/master/imgui_memory_editor
	// Click "Revisions" on the Gist to see old version.

	;SMBDIS.ASM - A COMPREHENSIVE SUPER MARIO BROS. DISASSEMBLY
	;by doppelganger (doppelheathen@gmail.com)

	;This file is provided for your own use as-is. It will require the character rom data
	;and an iNES file header to get it to work.

	;There are so many people I have to thank for this, that taking all the credit for
	;myself would be an unforgivable act of arrogance. Without their help this would
	;probably not be possible. So I thank all the peeps in the nesdev scene whose insight into
	;the 6502 and the NES helped me learn how it works (you guys know who you are, there's no