Hell, that ain't even new. Most microcontrollers have had a model or two with code protection since the 80s.
Rob Studdert wrote:
On 8 Jun 2003 at 14:20, [EMAIL PROTECTED] wrote:
And that there are any bytes left over in the address space to stick the new code into. (Of the two, recognizing the JMP instructions is the more easily solvable. How many different embedded controllers are in common use these days? ID the controller and look it up, or try different interpretations of the code until you find one that starts making sense.)
Many late microcontrollers have on-board EEPROMs and code protection security. I've just been down this path with a W78E58.
Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998