#![no_std]
#![no_main]

extern crate userspace_rt;

use types::bounded::CapSlot;
use userspace::syscall;

#[unsafe(no_mangle)]
extern "C" fn main() {
    let ep = CapSlot::const_new(0);

    let (w0, w1, w2, w3) = syscall::receive(ep);
    syscall::send(ep, w0.wrapping_add(1), w1, w2, w3);

    syscall::exit();
}