This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.
To capture the video (filesize: 19MB), using the free "QuickTime Player" application:
; A Mind is Born by Linus Akesson | |
; https://linusakesson.net/scene/a-mind-is-born/index.php | |
; transcribed to 64tass and further commented by J.B. Langston | |
; important locations after program is copied to zero page | |
vmptr = $cb ; video matrix | |
clock = $13 ; global clock lsb - indicates position within bar | |
clock_msb = $20 ; global clock msb - indicates bar of song | |
script = $21 ; poke table |