Impulse imp => dac; // provides a means of writing directly to dac
0.0 => float phase; // make a phase variable for sine argument

while (1) {
    Math.sin(phase) => imp.next; // write out next sample
    0.1 +=> phase; // increment phase
    if (phase > (2*pi)) phase-(2*pi) => phase; // modulo two pi
    1.0 :: samp => now; // write out each sample
}