fn rl_e(cpu: &mut Cpu) {
        let e = cpu.e();

        let r = rl(cpu, e);

        cpu.set_e(r);
    }
/// Rotate `E` to the left through carry
Rotate `E` to the left through carry
Rotate ` E ` to the left through carry
fn rl_e(cpu: &mut Cpu) {
        let e = cpu.e();
        let r = rl(cpu, e);
        cpu.set_e(r);
    }
fn rl_e ( cpu : & mut Cpu ) { let e = cpu . e ( ) ; let r = rl ( cpu , e ) ; cpu . set_e ( r ) ; }
Rotate `E` to the left through carry
Rotate ` E ` to the left through carry
cpu
&mut Cpu
cpu
&mut Cpu