What is a delayed branch and how does it contribute to minimizing the effect of pipeline bubbles? Why are delayed branch mechanisms less popular then they were?
What will be an ideal response?
The term delayed in delayed branch is not a very good description. In a pipelined computer a taken branch means
that the pipeline must be (partially) flushed. If the instruction sequence is P,B,Q where P, B, and Q are three
instructions and B is a branch, the instruction Q is executed if the branch is not taken and not executed if the
branch is taken. A delayed branch mechanism always executes the instruction after the branch. Thus, the
sequence P,Q,B (where P and Q are executed before the branch) becomes P,B,Q where Q is still executed before
the branch. Of course, if a suitable instruction P cannot be found, the so?called delayed branch slot must be filled
with a NOP (no operation).
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``` public static void main(String[] args) { xMethod(); } ``` a. a static method b. an instance method c. a static method or an instance method
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Indicate whether the statement is true or false
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A. animation-duration B. animation-delay C. animation-direction D. animation-iteration-count
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Answer the following statement true (T) or false (F)