The next three supercells are served directly from

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Unformatted text preview: rmed by the general integer functional unit and that this unit is pipelined. This means that one cycle after a multiplication has started, a new integer operation (multiplication or otherwise) can begin. Assume also that the Integer/Branch function unit can perform simple integer operations. A. Show a translation of these lines of assembly code into a sequence of operations. The movl instruction translates into a single load operation. Register %eax gets updated twice in the loop. Label the different versions %eax.1a and %eax.1b. B. Explain how the function can go faster than the number of cycles required for integer multiplication. C. Explain what factor limits the performance of this code to at best a CPE of 2.5. D. For floating-point data, we get a CPE of 3.5. Without needing to examine the assembly code, describe a factor that will limit the performance to at best 3 cycles per iteration. Homework Problem 5.9 [Category 1]: Write a version of the inner product procedure described in Problem 5.8 that uses four-way loop...
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This note was uploaded on 09/02/2010 for the course ELECTRICAL 360 taught by Professor Schultz during the Spring '10 term at BYU.

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