# Platform (Kernel)

`Platform`(subFunction)

  Important

  SCI1.1 only.

  Retrieves platform information.

  Parameters: | subFunction (number) – One of the sub functions listed below.
  Returns: | A value depending on the sub function.

  SubFunction | Description | Returns
  --- | --- | ---
  1 | Get CD speed | Returns the CD speed
  3 | CD check | Unknown
  4 | Get platform | 1 for DOS, 2 for Windows.
  5 | Is not hi-res? | TRUE if not on a hi-res platform.
  6 | Is hi-res? | TRUE if on a hi-res platform, otherwise FALSE
  7 | Is windows? | TRUE if on Windows, otherwise FALSE.