It’s time…time for a video on the Commodore Amiga Blitter! Topaz walks through the memory copy capabilities of this feature in the context of a small demo written to exercise the blitter, copper, and sprites.

Thanks to Tyrel (@tyrel@mastodon.social), corb0!

References

Code

• Cool Bun Demo on Hackerbun (https://code.hackerbun.dev/TheIndustriousRabbit/cool-bun-demo)
  • All the blitter code I used for this video is here, including the code to convert PNGs to Amiga assembler embedded images used in the main C code.

Documentation

• Amiga Blitter Hardware (https://amigadev.elowar.com/read/ADCD_2.1/Hardware_Manual_guide/node0118.html)
  • The Amiga Blitter section of the hardware manual
• SAS/C and DevPac interop (https://amigasourcecodepreservation.gitlab.io/total-amiga-assembler/#xdef-and-xref)
  • Since I use SAS/C and DevPac, I needed to know how to get the two to talk to each other

Credits

Music

• “Silly Fun” and “Wallpaper” by Kevin MacLeod
  • https://incompetech.com
  • CC-BY 3.0 (http://creativecommons.org/licenses/by/3.0/)

SFX

• Dragon_Wing.wav by Bsdjak
  • https://freesound.org/people/Brsjak/sounds/483095/
  • CC-BY 4.0 (http://creativecommons.org/licenses/by/4.0/)
• slap-cards.wav by themfish
  • https://freesound.org/people/themfish/sounds/45821/
  • CC-BY 4.0 (http://creativecommons.org/licenses/by/4.0/)
• Bell 3.wav by el1n
  • https://freesound.org/people/el1n/sounds/442747/
  • CC-0 (http://creativecommons.org/publicdomain/zero/1.0/)