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1039678
2015 Sep 18
5
multiply-accumulate instruction
I'm trying to define a multiply-accumulate instruction for the LEON processor, a Subtarget of the Sparc target.
The documentation for the processor is as follows:
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To accelerate DSP algorithms, two multiply&accumulate instructions are implemented: UMAC and SMAC. The UMAC performs an unsigned 16-bit multiply, producing a 32-bit result, and adds the result to a 40-bit accumulator made