Question
The Pentium processor used a ___ architecture, which implies that it has two pipelines. The second pipeline, known as the ____ pipeline, can handle any instruction. The second pipeline, known as the _____ pipeline, can only handle _____ instructions. Floating point instructions are first placed in the ____ pipeline, where they eventually are placed in the floating point unit: an exception to this rule is that the ____ instruction can stay in the u pipeline since it involves only ____ the operands, i.e. no floating - point operations are taking place during the instruction's execution. Using this type of architecture with two pipelines, the Pentium can achieve a maximum throughput of ____ (how many?) instructions per clock. You are working on some code, modifying the code that someone else wrote. When the following procedure executes, what happens? Note that SOMEPROC1 is a near procedure. We discussed the Columbia Space Shuttle accident, especially from an engineering/operational standpoint. Circle all that apply regarding the Columbia tragedy: a. Columbia exploded upon re-entry b. management was swift to address the concerns raised by engineering teams while Columbia was still on-orbit c. The Columbia accident was the first ever recorded incident at NASA d. The damage was due to a pressure valve erupting e. Columbia's electronic control systems worked flawlessly, but couldn't control the orbiter since the damage was so great f. the reinforced carbon-carbon (RCC) panels were not tested for brittleness g. The accident report states that a rescue attempt would have likely been successful
Explanation / Answer
10.
Superscalar architectutre.
u
v
simple
U
Fetch
Executes
12.2 tps
12.
Ans:
a,e and g
