SchBootInit() {
  $07, $01
}
SchStartUp() {
  $07, $02
}
SchShutDown() {
  $07, $03
}
SchVersion(): int16 {
  $07, $04
}
SchReset() {
  $07, $05
}
SchStatus(): bool {
  $07, $06
}
SchAddTask(taskPtr: VoidProcPtr): bool {
  $07, $09
}
SchFlush() {
  $07, $0a
}