Computers and Technology, 10.04.2020 19:00 megancrader11

Consider the following MIPS code segment that is executed on a 5-stage pipeline architecture that does not implement forwarding or stalling in hardware. (1) add $4, $1, $1 (2) add $7, $4, $9 (3) lw $2, 40($8) (4) sub $8, $1, $2 (5) sw $8, 80($2) (6) sub $2, $8, $4 (7) lw $8, 2($1) (8) add $8, $4, $2 a. [6 marks] Identify the data dependences that cause hazards. You are to use the following format to inform each dependency reported: instruction (y) depends on instruction (z) caused by register $ b. [8 marks] If the hazards identified in (a.) are to be prevented by the compiler through no-op insertions but without reordering the instructions, indicate where would the compiler add no-ops. You are to use the following format to inform each dependency reported: insert x no-ops between instructions (y) and (z). c. [6 marks] Now assume a more intelligent compiler that can move instructions in the code. Can such a compiler reduce the number of added no-ops?

Answers: 2

Show answers

Another question on Computers and Technology

Computers and Technology, 22.06.2019 16:50

Consider a slotted aloha system, where the time slot equals the fixed duration of each packet. assume that there are 4 stations a,b,c,d sharing the medium. (a) stations a,b,c,d receive one packet each from higher layers at times 1.3, 1.5, 2.6,5.7 respectively. show which transmissions take place when, according to the slottedaloha protocol; describe all transmissions until all four packets have been successful.when needed, each station has access to the following sequence of random number, provided by a random number generator and drawn uniformly between 0 and 1: (1) station a draws numbers: 0.31, 0.27, 0.78, 0.9, 0.9, 0.11, 0. (2) station b draws numbers: 0.45, 0.28, 0.11, 0.83, 0.37, 0.22, 0. (3)station c draws numbers: 0.1, 0.2, 0.3, 0.4, 0. (4) station d draws numbers: 0.36, 0.77, 0.9, 0.1, 0.1, 0.1, 0.1, 0. (b) in slotted aloha, a station transmits in each time slot with a given probability. what probabilities would you assign to each of the four stations so as to: (i) maximize the efficiency of the protocol? (ii) maximize fairness among the four stations? (c) will the efficiency increase or decrease if we modify slotted aloha as follows: (i) get rid of slots and allow stations to transmit immediately? (ii) implement carrier sensing? (iii) implement collision detection? (iv) implement collision avoidance?

Answers: 3

Answer

Computers and Technology, 24.06.2019 19:00

In python a floating-point number must be written using scientific notation?

Answers: 1

Answer

Computers and Technology, 24.06.2019 23:00

Aselect query joins tables together by their a. table names. b. primary keys. c. first entries. d. field names.

Answers: 2

Answer

Computers and Technology, 25.06.2019 03:00

Match the categories in the first column with examples in the second column. 1. good for watching movies 2. maximum power with small size 3. older style mobile devices that may or may not have internet connectivity tablet computer a.)pda b.)smart phone c.)tablet computer

Answers: 1

Answer

You know the right answer?

Consider the following MIPS code segment that is executed on a 5-stage pipeline architecture that do...

Questions