What is the drawback of delayed branching?

Disadvantage of Delayed Branching Interrupt processing becomes more difficult. This is because interrupt requests caused by instructions in the delay slot have to be processed differently from those arising from ‘normal’ instructions.

What is delayed branching in computer architecture?

delayed branch A conditional branch instruction found in some RISC architectures that include pipelining. This avoids stalling the pipeline while the branch condition is evaluated, thus keeping the pipeline full and minimizing the effect of conditional branches on processor performance.

How does a branch delay slot work?

The idea of the branch shadow or delay slot is to recover one of those clocks. If you declare that the instruction after a branch is always executed then when a branch is taken the instruction in the decode slot also gets executed, the instruction in the fetch slot is discarded and you have one hole of time not two.

Why is branch prediction so important?

The purpose of the branch predictor is to improve the flow in the instruction pipeline. Branch predictors play a critical role in achieving high effective performance in many modern pipelined microprocessor architectures such as x86.

What are the two types of branch prediction techniques available?

Branch prediction technique can be of two types: Static Branch Prediction Technique. Dynamic Branch Prediction Technique.

What is meant by delayed branch?

The delayed branch means that the instruction following the branch is always executed before the PC is modified to perform the branch.

What is a branch delay slot MIPS?

On the MIPS architecture, jump and branch instructions have a “delay slot”. This means that the instruction after the jump or branch instruction is executed before the jump or branch is executed. The MIPS processors execute the jump or branch instruction and the delay slot instruction as an indivisible unit.

What is the disadvantage of dynamic branch prediction?

The disadvantage is that the history is diluted by irrelevant information if the different conditional jumps are uncorrelated, and that the history buffer may not include any bits from the same branch if there are many other branches in between. It may use a two-level adaptive predictor.

When pipeline makes wrong decision on branch prediction then it is called as?

Control Hazard Also known as branch hazard Pipeline makes wrong decision on | Course Hero.