How do I dump the ROM from a Newton?

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Einstein Wiki: Dumping a ROM from a Newton device you own.

Matthias Melcher on NewtonTalk:

Install Hammer in a Classic environment. Connect via serial.
Some very small tool must be installed on the Newton. TMChooser was the name I believe.

Main Menu [File] > [Save Memory...]

A dialog pops up. Choose a filename. “Start Address:” is 00000000, “Limit:” is 00800000.

Click “Save” and wait along time.

NewTen can also be used to extract (or dump) the ROM. For PowerPC or Intel.