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6502

Optimized Flags Code for 6502

2008-07-15 by Michael Steil

When I disassembled Steve Wozniak’s Apple I BASIC, I found a 6502 trick that I had never seen before, although I had read a lot of 6502 code, including the very well-written Commodore BASIC (i.e. Microsoft BASIC for 6502). read more

Categories 6502, Tricks 16 Comments

1200 Baud Archeology: Reconstructing Apple I BASIC from a Cassette Tape

2008-07-14 by Michael Steil

The audio file that was posted two weeks ago is indeed a very important artifact of computer history: It is a recording of the “Apple I BASIC” cassette tape that came with the Apple I. It is the first piece of Software ever sold by Apple (not counting computer firmware). read more

Categories 6502, Apple, Archeology, BASIC, Hacks, Tapes 123 Comments

Tool's 'Rosetta Stoned' Live Performance to Include Apple I Schematic

2007-12-12 by Michael Steil

It probably takes a geek in the front row (which is likely for a concert in San Francisco) to notice that the computer schematics Tool showed on the screens during their “Rosetta Stoned” performance are those of an Apple 1 – but distorted: read more

Categories 6502, Apple, Trivia 4 Comments
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