How to judge A hexadecimal number. A, C, O, P, S, Z value status flag? In addition to turn into a binary after judgment, what is the simple and rapid method?
CodePudding user response:
A number, not mark place, although the government and PF as possible; Are generally is how flag bit after an instruction, or said the influence of the instruction for labeling, ZF manual analysis is simple, the zero or non-zero is obvious; PF parity bit, have to be written in binary number of snapping fingers; SF, the sign bit can also simply by the highest suddenly see out,