Method fsqrt64

pulley/src/interp.rs:3784–3788

(&mut self, dst: FReg, src: FReg)

    }

    fn fsqrt64(&mut self, dst: FReg, src: FReg) -> ControlFlow<Done> {
        let a = self.state[src].get_f64();
        self.state[dst].set_f64(a.wasm_sqrt());
        ControlFlow::Continue(())
    }

    fn fneg64(&mut self, dst: FReg, src: FReg) -> ControlFlow<Done> {
        let a = self.state[src].get_f64();