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System and method for accelerated performance of quadrature amplitude modulation (QAM) decoding operations in a processor
System and method for accelerated performance of quadrature amplitude modulation (QAM) decoding operations in a processor
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机译:用于在处理器中加速执行正交幅度调制(QAM)解码操作的系统和方法
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摘要
A system and method for accelerated performance of quadrature amplitude modulation (QAM) is provided. The system includes multiple general purpose registers and multiple execution units configured to decode a set of QAM tones in parallel or an individual QAM tone in response to a single instruction executable by the processor. Each of the plurality of execution units is configured to decode one of the set of QAM tones according to a constellation size associated with the one of the set of QAM tones. The QAM decoding method includes reading a constellation size value for each of a set of received input tones. For each tone in the set of input tones, an ideal point in a QAM constellation of the associated constellation size closest to the X and Y coordinates of the tone is determined. The data values of the ideal points are then stored in a destination register.
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