Illegal instruction in ASM: lock cmpxchg dest, src?

This operation doesn't make sense unless the destination is a memory operand, however the instruction allows a register destination. The CPU will fault if the instruction uses a register mode.

Ross's answer already says most of this, but I'll try and clarify a couple of things.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.