And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.
Genesis 1:6 KJV
New International Version
And God said, “Let there be a vault between the waters to separate water from water.”
Genesis 1:6 NIV
And God sayd: let there be a fyrmament betwene the waters ad let it devyde the waters a sonder.
Genesis 1:6 TYN
- Apple II Vapor Lock and the Floating Bus (deater.net)
First, I want to make it clear I didn’t invent any of this. It has been well known since the early 80s. You can read more about this in Bob Bishop’s 1982 Softalk article “Have an Apple Split” and Don Lancaster’s Vapor Lock and Fun with Mixed Fields and Glitch Stomper articles. The technique was really not used that much, probably because it is difficult to use and not really officially supported by Apple.