[A83] Re: Warming up


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[A83] Re: Warming up




You're probably thinking of the MC6800, with the Halt and Catch Fire (HCF)
opcode:

http://www.tuxedo.org/~esr/jargon/html/entry/HCF.html

> On an early microprocessor (I think it might be the 6502 but I'm not
sure),
> there was an undocumented instruction that caused the microprocessor to do
> nothing but toggle all its address lines as fast as possible. In certain
> cases this would heat up the peripheral chips enough that the circuit
board
> would catch fire.
>
> It's very easy to heat up the CPU more than a normal program, however you
> won't be able through software to heat it up any *noticeable* amount...





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