We take another look at the Commodore 64 astronomy program Sky Travel, this time with the assistance of the 20 MHz CMD SuperCPU Accelerator. We examine the reasons for the 2 hour discrepancy between Sky Travel's depiction of the eclipse, and reality. It involves time zones and Daylight Saving Time. Other tangential topics include: JiffyDOS disk speed-up, 1541 disk drive "head knocking" copy protection. Then finally we go on a "round the world" easter egg hunt for many interesting "tokens" hidden in the Sky Travel program.
To support 8-Bit Show And Tell:
Become a patron: https://patreon.com/8BitShowAndTell
One-time donation: https://paypal.me/8BitShowAndTell
2nd channel: https://www.youtube.com/channel/UCAgWzEh5c8391eJnELDy9OA
The previous Sky Travel / Eclipse video that I reference: https://www.youtube.com/watch?v=gipFvhEMB0I titled "Viewing the 2024 Solar Eclipse with Commodore 64's 1984 Sky Travel"
My previous SuperCPU video: https://www.youtube.com/watch?v=x9clez2fxxw
Atari version: https://www.atarimania.com/pgesoft.awp?version=384
Index:
0:00 Intro
1:36 About the CMD SuperCPU and JiffyDOS
4:52 Booting Sky Travel with JiffyDOS, speed-up
6:40 Disable Head "Bump"
8:05 The 2 Hour Error: DST and Time Zones
12:07 The eclipse from Apache, Arizona: no error
18:49 The Sky Travel Easter Eggs: Polar Bear
20:50 Eggs 2 - 6
25:42 Eggs 7 - 11
31:14 One last egg
32:50 Thanks!
153 Comments