Uploaded September 2024 | Updated September 2026, 2 weeks ago

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Kick off #SepTandy with a music player for the TI SN76489 sound chip in Tandy 1000 computers.

Twitter: twitter.com/TalesOfWeird

Instagram: instagram.com/TalesOfWeirdStuff

00:00 Intro
02:57 Tandy sound background
05:22 VGM history
06:48 Project goals
09:25 VGMRips.net
10:21 VGM file format
11:20 Source code intro
14:17 Playback loop
17:43 Delay loop woes
27:45 Song playback analysis
35:22 Closing words
37:02 Music without talking

vgmplay 0.1 download link:

github.com/ianromanick/vgmplay/releases/tag/vgmplay-0.1

GitHub repository for the VGM player:

github.com/ianromanick/vgmplay

VGMRips:

vgmrips.net/packs

VGM Specification:

vgmrips.net/wiki/VGM_Specification

Michael Abrash article about run-slice line drawing:

phatcode.net/res/224/files/html/ch36/36-01.html

Image credits:

commons.wikimedia.org/wiki/File:SN76489_01.jpg

commons.wikimedia.org/wiki/File:AY-3-8910.jpg

commons.wikimedia.org/wiki/File:ColecoVision-wController-L.jpg

commons.wikimedia.org/wiki/File:Texas_Instruments_TI-99-4A_at_Computerspielemuseum_(16515751523).jpg

commons.wikimedia.org/wiki/File:Ibm_pcjr_with_display.jpg

commons.wikimedia.org/wiki/File:Canon_V-20_MSX_computer_(3).jpg

commons.wikimedia.org/wiki/File:Sega-Master-System-Set.png

commons.wikimedia.org/wiki/File:Tandy_1000_RLX_front_view.jpg