Command: machine_proc
  
Syntax: 
  machine_proc(a, x) 
  
Description: 
  Perform a machine-specific operation such as graphics and sound
  effects. This routine should normally be called indirectly via 
  one of the library routines in a Euphoria include file. A direct
  call can cause a machine exception if done incorrectly.
  
See Also: 
  machine_func
  
