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    driver.js gibberish.js waa.js context.js compatibility.js debug.js midi.js random.js stdlib.js index.js process.js utils.js vm.js
  • ¶

    MIDI

  • ¶

    This module gives MIDI support to the VM not working yet

    export function midi () {
  const sendMidi = () => {}
  return {
  • ¶

    [pitch, velocity, channel, “@note-on”]

        "@note-on": ({ stack }) => {
      const chan = Number(stack.pop())
      const vel = Number(stack.pop())
      const pitch = Number(stack.pop())
      sendMidi([0x90 + chan, pitch, vel], 0)
    },
  • ¶

    [pitch, velocity, channel, “@note-off”]

        "@note-off": ({ stack }) => {
      const chan = Number(stack.pop())
      const vel = Number(stack.pop())
      const pitch = Number(stack.pop())
      sendMidi([0x80 + chan, pitch, vel], 0)
    },
  • ¶

    [pitch, velocity, channel, duration, “@note”]

        "@note": proc => {
      const { stack, operations } = proc
      const dur = Number(stack.pop())
      let chan = Number(stack.pop())
      let vel = Number(stack.pop())
      let pitch = Number(stack.pop())

      sendMidi([0x90 + chan, pitch, vel], 0)
      operations.push(["@fork", [dur, "@wait", pitch, 0, chan, "note-off"]])
    },
  • ¶

    [controller, value, channel, “@cc”]

        "@cc": ({ stack }) => {
      let chan = Number(stack.pop())
      let value = Number(stack.pop())
      const controller = Number(stack.pop())
  • ¶

    Send cc controller value chan

          sendMidi([0xb0 + chan, controller, value], 0)
    }
  }
}