Awesome
32X DevKit
Useful links
DevKit by Chilly Willy
https://github.com/viciious/32XDK/releases
Wiki
https://github.com/viciious/32XDK/wiki
Hardware specs
http://www.tmeeco.eu/SMD/32x_hardware_manual.pdf
https://segaretro.org/Sega_32X/Technical_specifications
https://segaretro.org/File:SH7604_Hardware_Manual.pdf
https://mode5.net/32x-DDK/32Xtoc.html
General
https://segaretro.org/images/6/61/32X_Introduction_and_System_Features_-_26_-_04_-_1994.pdf
http://techdocs.exodusemulator.com/Console/SegaMegaDrive/Documentation.html#32x-documentation
http://gendev.spritesmind.net/forum/viewtopic.php?t=1157
http://gendev.spritesmind.net/forum/viewtopic.php?t=67
http://devster.monkeeh.com/sega/32xguide1.txt
http://gendev.spritesmind.net/forum/viewtopic.php?t=1279
http://gendev.spritesmind.net/forum/viewtopic.php?t=1455
http://gendev.spritesmind.net/forum/viewtopic.php?t=1043
https://devster.proboards.com/thread/648/cartridge-rom-size-32x-genesis
http://gendev.spritesmind.net/forum/viewtopic.php?t=590
https://www.sega-16.com/forum/showthread.php?34312-busting-32x-performance-myths
http://gendev.spritesmind.net/forum/viewtopic.php?t=1157
https://github.com/viciious/d32xr/commit/9492189ffcd222d5e8cc746e5dcdf9cf33e22a4a
https://github.com/viciious/d32xr/commit/427cf1a7ea19bf9e1e2ae8c6b78080156265ddfc + https://github.com/viciious/d32xr/commit/dbd82421669f252af6ac1e032d3a9c7fab274fa0
http://gendev.spritesmind.net/forum/viewtopic.php?f=4&t=3230
http://gendev.spritesmind.net/forum/viewtopic.php?f=4&t=3229
http://gendev.spritesmind.net/forum/viewtopic.php?f=4&t=3206
http://cyberwarriorx.com/sh2-assembly-optimizations
https://devblogs.microsoft.com/oldnewthing/20190805-00/?p=102749
https://sourceforge.net/projects/gdbstubs/
https://opensource.apple.com/source/gdb/gdb-309/src/gdb/sh-stub.c.auto.html
https://www.chibialiens.com/sh2/
Graphics
http://gendev.spritesmind.net/forum/viewtopic.php?t=1766
http://gendev.spritesmind.net/forum/viewtopic.php?t=95
http://gendev.spritesmind.net/forum/viewtopic.php?f=4&t=95&start=30
http://gendev.spritesmind.net/forum/viewtopic.php?f=4&t=95&start=75
http://gendev.spritesmind.net/forum/viewtopic.php?t=74
http://gendev.spritesmind.net/forum/viewtopic.php?t=1147
https://www.sega-16.com/forum/showthread.php?11104-32x-graphics-modes
http://gendev.spritesmind.net/forum/viewtopic.php?t=1372
https://forums.sonicretro.org/index.php?threads/32x-framebuffer-questions.19935/
http://gendev.spritesmind.net/forum/viewtopic.php?t=1372
https://gendev.spritesmind.net/forum/viewtopic.php?t=3011
https://blog.kaetemi.be/2015/04/01/practical-bayer-dithering/
Audio
https://forums.sonicretro.org/index.php?threads/interrupt-driven-dma-pwm-on-the-32x.29926/
https://gendev.spritesmind.net/forum/viewtopic.php?f=4&t=890
https://www.sega-16.com/forum/showthread.php?26052-32x-sound-programming
http://gendev.spritesmind.net/forum/viewtopic.php?t=592
https://gendev.spritesmind.net/forum/viewtopic.php?t=385
https://gendev.spritesmind.net/forum/viewtopic.php?t=1403
https://www.sega-16.com/forum/archive/index.php/t-3317.html
https://segaxtreme.net/threads/advanced-audio-compression-on-the-32x.17708/
Tutorials
http://gendev.spritesmind.net/forum/viewtopic.php?t=3024
https://librixxxi.blogspot.com/search/label/32X
Projects
https://github.com/gameblabla/32x-playground
https://github.com/mic-/lusid-dreams
https://github.com/viciious/d32xr
https://github.com/ammianus/32xHomebrew
https://github.com/andwn/marsdev
https://github.com/haroldo-ok/the-question-vn32x
https://github.com/haroldo-ok/BlocklyVN32X
https://github.com/haroldo-ok/vn32x
Other stuff
https://www.sega-16.com/forum/showthread.php?27775-Virtua-Fighter-32x-Questions
https://www.sega-16.com/forum/showthread.php?18716-Yeti-3D/page5
https://mdshock.com/2020/06/16/the-story-of-the-hitachi-sh-2-and-the-sega-saturn/
https://www.sega-16.com/forum/showthread.php?34266-32x-mod-player