[stella] fingerprints

Subject: [stella] fingerprints
From: Adam Wozniak <adam@xxxxxxxxxxxxxxxx>
Date: Fri, 1 Apr 2005 12:45:52 -0500
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I'm looking for multi byte "fingerprints" that might identify and
differentiate 2600, 5200, and 7800 ROM images.  So far, these are the
"fingerprints" I've come up with for 2600 images.  I figure that it's
highly likely that at least one of these fingerprints will be contained
in 2600 rom images.  Can you think of other/more/better fingerprints
for 2600s?  How about fingerprints for 5200 and 7800 roms?


# LDA #02 ; STA VSYNC
a9 02 85 00
a9 02 8d 00 00

# LDX #02 ; STX VSYNC
a2 02 86 00
a2 02 8e 00 00

# LDY #02 ; STY VSYNC
a0 02 84 00
a0 02 8c 00 00

# LDA #02 ; STA VBLANK
a9 02 85 02
a9 02 8d 00 02

# LDX #02 ; STX VBLANK
a2 02 86 02
a2 02 8e 00 02

# LDY #02 ; STY VBLANK
a0 02 84 02
a0 02 8c 00 02

# STA WSYNC
85 01
8d 00 01

# STX WSYNC
86 01
8e 00 01

# STY WSYNC
84 01
8c 00 01


- -- 
adam@xxxxxxxxxxxxxxxx        http://cuddlepuddle.org/~adam
KG6GZR                       http://cuddlepuddle.org/~adam/resume.html

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