Reference 1 Flashcards

1
Q

Calculate the value of the physical address that follows. Assume all number as hexadecimal numbers.

A. A32CFH; C2612
B. A33CEFH; C2513
C. A31CFH; C2512
D. A34CDH; C2112

A

A32CFH; C2612

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A pipeline lowers the performance because no work is done during the ___

A

Stall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Intel has embraced the newer EPIC philosophy. What does EPIC stand for?

A

Explicitly Parallel Instruction Computing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When FXCH is executed in parallel with another floating-point instruction, how many clock cycles are required for its execution?

A

0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The hit ratio affects the ___ access time.

A

Average

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

An attempt is made to keep instructions completing at a rate of ___ per clock cycle.

A

One

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the two important factors in determining power consumption of a processor?

A

Clock speed and operating voltage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How many parity bit/s there is for every 8 bytes of data (a quarter of a line) in the instruction cache?

A

1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Fill out the blank: ___ plays an important role in helping a CISC or RISC machine because this re-arranges certain pairs of instructions to allow them to execute in parallel in the floating-point

A

Compiler

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

A __ stored with the entry is compared with the remaining address bits.

A

Tag

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

This method is used in writing to the cache and to main memory.

A

Writethrough

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

For the direct-mapped cache organization, indicate all its field with their name and size in bits. Assume a main memory size of 4 Gigabytes & a cache memory capacity of 64 kilobytes of main memory data. Compute the total capacity of the cache memory.

A

16 bits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What formula is used to predict the average access time?

A

Tacc = HitRatio x Tcache + 1( 1 – HitRatio ) x ( Tcache + Tram )
+-+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Bypass 1 connects the output of the __ stage to the input of the __ stage.

A

X1, EX

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

It builds the schedule of condition-test, true and false instructions, and sets the predicate flags.

A

Compiler

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which of the following is not intended for personal computing processors

A

Xeon

17
Q

What is the Intel’s first sixth-generation processor?

A

Pentium Pro

18
Q

The MMX Technology added to the Pentium processes have a total of __ new instructions.

A

57

19
Q

What will happen if you lower the clock frequency?

A

Decrease in performance

20
Q

Which of the processors has no level 2 cache?

A

Celeron

21
Q

Processors capable of parallel instruction execution of multiple instructions

A

Superscalar machine

22
Q

These instructions allow the programmer to convert between integer and floating-point numbers, as well as perform floating-point reciprocal and square root.

A

SIMD-FP

23
Q

These instructions give the programmer ways to organize data for SIMD computations

A

New media

24
Q

This allows use of minimal logic in each stage and a higher clock speed for the pipeline

A

Hyper-pipelined technology

25
Q

The Pentium’s mechanism for maintaining cache coherency in its data cache is called MESI (modified/exclusive/shared/invalid). Which is the definition of the Exclusive state?

A

The current line has not been modified (matches main memory) and is only available in a single cache. Writing to this line changes its state to modified.