On Thu, 17 Sep 2015, dwight wrote:
If working on a newer X86 processor, this is necessary, not to protect the code but because the code is cashed and my not be updated in time for it to be executed. Write through is expensive and only provided on the data side, if at all. Dwight
On some/most older X86 real mode, a JMP $+2 would flush the prefetch buffer, and make possible some simple self-modifying code (such as changing the second byte of an INT instruction)
