h6. [[Portable]] h6(. » [[Portable SWI Calls|SWI Calls]] h6((. » [[Portable_Speed2]] h6(((. » Portable_Speed2 1 h2. Portable_Speed2 1 h5. (SWI &42FCE) |_<^{width:4em}. Entry | | |<^. R0 |<^. 1 (Reason code) | |_<^{width:4em}. Exit | | |<^. R0 |<^. Minimum supported CPU speed, in MHz | |<^. R1 |<^. Maximum supported CPU speed, in MHz | h4. Use The purpose of this call is to return the minimum and maximum CPU speeds that the system supports. h4. Notes To find out more information about the available CPU speeds, see [[Portable_Speed2 4]] and [[Portable_Speed2 5]]. To find the current CPU speed, see [[Portable_Speed2 0]]. To set the CPU speed, see [[Portable_Speed2 2]] or [[Portable_Speed2 8]] (to set the desired 'slow' and 'fast' speeds), and [[Portable_Speed]] (to switch between the configured 'slow' and 'fast' speeds). h4. See also * [[Portable_Speed]] * [[Portable_Speed2]] * [[Portable_Speed2 0]] * [[Portable_Speed2 2]] * [[Portable_Speed2 4]] * [[Portable_Speed2 5]] * [[Portable_Speed2 8]] * [[Portable SWI Calls]]