首页>
外国专利>
IMPLEMENTATION OF FLOATING-POINT TRIGONOMETRIC FUNCTIONS IN AN INTEGRATED CIRCUIT DEVICE
IMPLEMENTATION OF FLOATING-POINT TRIGONOMETRIC FUNCTIONS IN AN INTEGRATED CIRCUIT DEVICE
展开▼
机译:集成电路设备中浮点三角函数的实现
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present embodiments relate to integrated circuits with circuitry that implements floating-point trigonometric functions. The circuitry may include an approximation circuit that generates an approximation of the output of the trigonometric functions, a storage circuit that stores predetermined output values of the trigonometric functions, and a selector circuit that selects between different possible output values based on a control signal from a control circuit. In some embodiments, the circuitry may include a mapping circuit and a restoration circuit. The mapping circuit may map an input value from an original quadrant of the trigonometric circle to a predetermined input interval, and the restoration circuit may map the output value selected by the selection circuit back to the original quadrant of the trigonometric circle. If desired, the circuitry may be implemented in specialized processing blocks.
展开▼