|All other registers are dependent on reason code|
|All registers dependent on reason code|
The purpose of this call is to provide extra functionality not available through Portable_Speed.
The action performed depends on the reason code value in R0.
|00||&00||Report current CPU speed in MHz|
|01||&01||Report min & max CPU speed in MHz|
|02||&02||Set 'slow' and 'fast' speeds in MHz|
|03||&03||Report current 'slow' and 'fast' speeds in MHz|
|04||&04||Report number of CPU speeds available|
|05||&05||Convert speed index to MHz|
|06||&06||Convert MHz to index|
|07||&07||Report current CPU speed as index|
|08||&08||Set 'slow' and 'fast' speeds using indices|
|09||&09||Report current 'slow' and 'fast' speed indices|