[Coco] Fwd: Shift-Break-Reset: Recollections from the CoCo 1 days

Steve Ostrom smostrom7 at comcast.net
Sun May 3 18:25:29 EDT 2020


Absolutely fantastic, Art !!  Thank you.  These are the nuggets that are so much fun to read about.

--- Steve ---


Sent from Mail for Windows 10

From: Arthur Flexser
Sent: Sunday, May 3, 2020 4:32 PM
To: CoCo
Subject: [Coco] Fwd: Shift-Break-Reset: Recollections from the CoCo 1 days

Here's a very interesting story from the CoCo 1 days, a bit of curious CoCo
hackery known to very few people.  How many folks here (I'll guess: none)
are aware that a 64K CoCo 1 or 2 can be fooled into booting up as a 4K CoCo
by hitting reset while pressing certain combinations of keys?  And further,
that this odd fact can provide a means of breaking out of a reset-protected
program and obtaining a snapshot of the program's memory contents,
providing a crucial shortcut for anyone wishing to circumvent the copy
protection?




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