Скачать или смотреть 6 ways to random in 1980s assembly: illustrated & demystified

Today we'll go over several different approaches that retro software used to generate pseudo random numbers. We'll look at the 6809 assembly language code that implements each approach, explore how it works, and illustrate the pattern of random numbers generated using a visualizer. We will then pit them all against each other in the most exciting speed test you have ever experienced.

Download the visualizer and algorithms: https://cocotownretro.wordpress.com/2...

Description of Simple EOR routine:    • A retro random number generator written by...  

Description of the Simple EOR 16 routine (plus a lot more!):    • AI kept doing THIS while refining random n...  

Description of how the CoCo's BASIC ROM generates random numbers:    • How 1980s BASIC made random numbers  
and how I modified my calling code to get back two bytes at a time:    • Can you figure out why RND gives skewed re...  

Music during cold intro and speed test from bensounds:

Music I use: Bensound
License code: LKG49DBEYIXQX7ZF
Artist: : Benjamin Tissot

Music: bensound.com
License code: FLMDG1RJIUZHGNVF
Artist: : Benjamin Tissot


00:00 Intro
01:21 Simple EOR
03:19 BASIC-to-6809 8 bit
04:53 High Period
07:13 Mega-Bug
10:42 Simple EOR 16
12:16 ROM'S RND function
13:18 The random speed olympics!
16:45 Try it for yourself