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RE: [AVR-Chat] Bogus op-codes

2005-07-25 by Larry Barello

Blank FLASH seems to operate a NOP for me.  When I am debugging the JTAG pod
erases the entire flash (including my bootloader), yet reset to the boot
vector still find 0x000 just fine :)


-----Original Message-----
From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of Bruce Parham
Sent: Monday, July 25, 2005 2:39 PM
To: icc-avr; AVR-Chat@yahoogroups.com
Subject: [AVR-Chat] Bogus op-codes

I'm working on a boot loader for the 'm128 and got curious about illegal
op-codes.
Does anybody know what the real hardware does when it executes an
unimplemented code?
Studio sim seems to treat the all ones (0xffff) case as a no-op but I don't
have the
real hardware handy at the moment to see what it does. Thanks in advance for
any
insights.

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