h6. [[Portable]] h6(. » [[Portable SWI Calls|SWI Calls]] h6((. » [[Portable_Speed2]] h6(((. » Portable_Speed2 3 h2. Portable_Speed2 3 h5. (SWI &42FCE) |_<^{width:4em}. Entry | | |<^. R0 |<^. 3 (Reason code) | |_<^{width:4em}. Exit | | |<^. R0 |<^. Preserved | |<^. R1 |<^. Currently configured 'slow' speed, in MHz | |<^. R2 |<^. Currently configured 'fast' speed, in MHz | h4. Use The purpose of this call is to read the currently configured 'slow' and 'fast' speeds. These are the speeds that [[Portable_Speed]] will use when asked to switch the CPU to either the 'slow' or 'fast' speed. h4. Notes [[Portable_Speed2 9]] provides similar functionality to this call, but the speeds will be expressed as indices into the list of supported CPU speeds, not as raw MHz values. 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]]