/// Increment the program counter and read the next u8 value following
/// the current pc.
Increment the program counter and read the next u8 value following
the current pc.
Increment the program counter and read the next u8 value following the current pc .
fn next_u8(&mut self) -> u8 {
        let value = self.bus.borrow().read_u8(self.pc);
        self.pc += 1;
        value
    }
fn next_u8 ( & mut self ) -> u8 { let value = self . bus . borrow ( ) . read_u8 ( self . pc ) ; self . pc += 1 ; value }
Increment the program counter and read the next u8 value following
the current pc.
Increment the program counter and read the next u8 value following the current pc .
&mut self