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Method, apparatus and program storage device that provides a shift process with saturation for digital signal processor operations
Method, apparatus and program storage device that provides a shift process with saturation for digital signal processor operations
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机译:为数字信号处理器操作提供饱和的移位过程的方法,装置和程序存储设备
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摘要
A method, apparatus and program storage device that provides a shift process with saturation for digital signal processor operations are disclosed. An instruction is generated for shifting an operand to either maximum or the minimum value depending on the bit of data input when saturation occurs. A saturation detection circuit is combined with an arithmetic shifter and a final decision multiplexor. The final decision multiplexor receives the output from the arithmetic shifter and the saturated value from the saturation circuit. When saturation is detected by the saturation detection circuit, the final decision multiplexor selects the saturate minimum or the saturate maximum depending on whether the MSB of the data in equals one or zero, respectively.
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