Ardhinata Juari ardhinata

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

Multiple PHP versions using `phpenv` and `php-build`

Install dependecies

Debian/Ubuntu users

sudo apt install \
  autoconf \
  bison \

Create and enter a working directory

mkdir -p ~/dnscrypt-working-directory && cd ~/dnscrypt-working-directory

Become root

sudo -s

	A collection of guides/sites/posts that you may want to look through when setting up a mail server.

	### General

	* https://www.digitalocean.com/community/tutorials/how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassassin

	### Postfix (SMTP)

	* https://seasonofcode.com/posts/custom-domain-e-mails-with-postfix-and-gmail-the-missing-tutorial.html
	* https://seasonofcode.com/posts/setting-up-dkim-and-srs-in-postfix.html

	#!/bin/bash
	# bash generate random alphanumeric string
	#

	# bash generate random 32 character alphanumeric string (upper and lowercase) and
	NEW_UUID=$(cat /dev/urandom \| tr -dc 'a-zA-Z0-9' \| fold -w 32 \| head -n 1)

	# bash generate random 32 character alphanumeric string (lowercase only)
	cat /dev/urandom \| tr -dc 'a-z0-9' \| fold -w 32 \| head -n 1