David Barto wrote: > > The 6502 had a HCF (halt and catch fire) undocumented instruction. > I forget the opcode and if you knew what you were doing you could get the > instruction executed on the chip using any assembler. > > Security through obscurity back in the 70s. > The chip was advanced enough that the DOD wanted to avoid it falling into the > “wrong” hands. > > David > > Sent from iPhone Hotblack Desiato >
Did someone tell you this on April 1st? Regards, Peter Coghlan Sent from my DEC Alphaserver 800
