Bootsector Game From Scratch - Space Invaders (x86 asm)

Making a simple space invaders ish level in 16bit real mode x86 assembly, in 512 bytes or less. I try to explain every line of code, so it takes a while. Bootsector games playlist:    • Bootsector Games   Source code for this game: https://git.sr.ht/~queso_fuego/bootse... Let me know any bootsector games or programs you'd like to see! Current ones on the list, if possible: Centipede, tetris, breakout, and asteroids Disclaimer: Ideas/techniques/inspirations for this came from Oscar Toledo's work on bootsector programs like nanochess, or for this video, invaders: https://github.com/nanochess/Invaders. I bought his 2 books on bootsector programming, which contain commented source code listings and explanations for several real mode bootsector programs. If that sounds interesting, consider his site for more details: https://nanochess.org/ and look at some of Mr. Toledo's github for more bootsector goodness: https://github.com/nanochess/ This isn't a sponsor or anything, but I want to acknowledge his work as this video would not have happened without it. Outline: 0:00 - Intro 2:08 - Create file and boot 9:22 - Set video mode, draw single color 16:20 - Single tick delay timer & test 24:07 - Sprites & constants 40:06 - Set initial variable values 48:20 - Draw aliens/draw sprite functions 1:17:58 - Draw player and barriers 1:26:01 - Check if shot hit barrier 1:41:54 - Get player input 1:49:44 - Draw shots 1:56:37 - Check if shot hit alien 2:08:28 - Create alien shots 2:19:00 - Move aliens 2:28:59 - Finished game & Outro ---------------------------------------------------------------------------------------------------------------------------------- Git repo for this project and other bootsector games: https://codeberg.org/queso_fuego/boot... Contact: https://queso_fuego.codeberg.page/contact.html Questions about setup/software/etc.? Check the FAQ: https://queso_fuego.srht.site/about.html Credits: Music from https://incompetech.com: "Your Call" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/b... The blue title tags: #x86 #gamedev #assembly