Abstract: Techniques are disclosed relating to dedicated power function circuitry for a floating-point power instruction. In some embodiments, execution circuitry is configured to execute a floating-point power instruction to evaluate the power function xy as 2y log2x. In some embodiments, base-2 logarithm circuitry is configured to evaluate a base-2 logarithm for a first input (e.g., log2 x) by determining coefficients for a polynomial function and evaluating the polynomial function using the determined coefficients and the first input. In some embodiments, multiplication circuitry multiplies the base-2 logarithm result by a second input to generate a multiplication result. In some embodiments, base-2 power function circuitry is configured to evaluate a base-2 power function for the multiplication result. Disclosed techniques may advantageously increase performance and reduce power consumption of floating-point power function operations with reasonable area and accuracy, relative to traditional techniques.

Abstract: In an embodiment, a processor (e.g. a CPU) may offload transcendental computation to a computation engine that may efficiently perform transcendental functions. The computation engine may implement a range instruction that may be included in a program being executed by the CPU. The CPU may dispatch the range instruction to the computation engine. The range instruction may take an input operand (that is to be evaluated in a transcendental function, for example) and may reference a range table that defines a set of ranges for the transcendental function. The range instruction may identify one of the set of ranges that includes the input operand. For example, the range instruction may output an interval number identifying which interval of an overall set of valid input values contains the input operand. In an embodiment, the range instruction may take an input vector operand and output a vector of interval identifiers.

Abstract: In an embodiment, a computation engine may offload a processor (e.g. a CPU) and efficiently perform transcendental functions. The computation engine may implement a range instruction that may be included in a program being executed by the CPU. The CPU may dispatch the range instruction to the computation engine. The range instruction may take an input operand (that is to be evaluated in a transcendental function, for example) and may reference a range table that defines a set of ranges for the transcendental function. The range instruction may identify one of the set of ranges that includes the input operand. For example, the range instruction may output an interval number identifying which interval of an overall set of valid input values contains the input operand. In an embodiment, the range instruction may take an input vector operand and output a vector of interval identifiers.

Abstract: A method and system for played a mixed audio in a communications device during an active communication session is disclosed. One configuration allows for ringtone audio to be heard simultaneously with voice audio received during an on-going phone call. In one configuration, the device comprises a transceiver a transceiver configured to receiver a first audio signal, an event handler configured to receive a notification, a storage configured to store at least one audio file, a processor configured to initiate a conversion of an audio file stored in the storage into a second audio signal, based on the received notification, a mixer configured to mix the first audio signal and the second audio signal to create a mixed audio signal, and an output device to output the mixed audio signal.

Abstract: A method and system for played a mixed audio in a communications device during an active communication session is disclosed. One configuration allows for ringtone audio to be heard simultaneously with voice audio received during an on-going phone call. In one configuration, the device comprises a transceiver a transceiver configured to receiver a first audio signal, an event handler configured to receive a notification, a storage configured to store at least one audio file, a processor configured to initiate a conversion of an audio file stored in the storage into a second audio signal, based on the received notification, a mixer configured to mix the first audio signal and the second audio signal to create a mixed audio signal, and an output device to output the mixed audio signal.