Floating-point event counters with automatic geometric pre-scaling, for electronic devices.

Disclosed is an event counter for electronic devices and a method of operation. The counter works by receiving a signal that indicates that an event in the device has occurred. The counter in then incremented each time a variable number of the events have occurred, and automatically increasing the variable number as the total count of events increases. The event counter may have a count mantissa and the variable number increases geometrically each time the count mantissa overflows. The count exponent may be incremented each time the count mantissa overflows, and the variable number is a pre-scale value equal to a counter base raised to the power of the value of the count exponent. The count mantissa may be set to a transitional value each time the count mantissa overflows, the transitional value equal to the overflow value of the count mantissa divided by the counter base.