fn tax(&mut self) -> bool {
        self.x = self.acc;

        self.flags.set(Flags::N, self.x == 0);
        self.flags.set(Flags::Z, (self.x & 0x80) != 0);

        false
    }
// TAX: Transfer A to X
// Affects: N Z
Transfer A to X
Affects: N Z
Transfer A to X Affects : N Z
fn tax(&mut self) -> bool {
        self.x = self.acc;
        self.flags.set(Flags::N, self.x == 0);
        self.flags.set(Flags::Z, (self.x & 0x80) != 0);
        false
    }
fn tax ( & mut self ) -> bool { self . x = self . acc ; self . flags . set ( Flags :: N , self . x == 0 ) ; self . flags . set ( Flags :: Z , ( self . x & 0x80 ) != 0 ) ; false }
TAX: Transfer A to X
Affects: N Z
TAX : Transfer A to X Affects : N Z
&mut self