https://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html#s3
https://gcc.gnu.org/onlinedocs/gcc/Extended-Asm.html#Assembler-Template
https://gcc.gnu.org/onlinedocs/gcc/Extended-Asm.html#Clobbers-and-Scratch-Registers
https://www.doshaven.eu/programming-tools/
https://www.delorie.com/djgpp/
https://www.delorie.com/djgpp/doc/dpmi/
https://www.delorie.com/howto/
http://www.brackeen.com/vga/basics.html
https://nullprogram.com/blog/2014/12/09/
https://github.com/balintkissdev/awesome-dos?tab=readme-ov-file#tutorials-and-programming-resources
https://docs.google.com/document/d/1kIvnSuqnf4m7yCcq8rrUeurZ_Dtuhs8J83fpZUz7oO8/edit?tab=t.0
https://itch.io/jam/dosember-game-jam
https://web.archive.org/web/20141003032417/http://www.japheth.de/HX.html