> modern processor would make a context switch a one instruction affair. Reduced instruction set (complexity) is a hallmark of modern processor designs, not th

> modern processor would make a context switch a one instruction affair. Reduced instruction set (complexity) is a hallmark of modern processor designs, not the other way around. You might want to read about what is involved in a task switch (either "thread" with same memory mapping, or "process") but it is not something that is conducive to reasonably carry out in one instruction.