Question
(10 points) Consider the following code segment. Calculate the time (in sec) required to execute the code segment in (i) a microprocessor runs at
(10 points) Consider the following code segment. Calculate the time (in sec) required to execute the code segment in (i) a microprocessor runs at 10 MHz and (ii) a microprocessor runs at 12 MHz. [(a) 5 points for calculating the total number of cycles, (b) 21/2 points for calculating the execution time for 10 MHz, and (c) 22 points for calculating the execution time for 12 MHz] ; Delay subroutine (DLY) ; Input: D0 (Longword) = 5000 DLY MOVEI.L #500,,D2 ; ..8 cycles INLP SUBI.L #1,D2 ; 4 cycles BNE INLP ; 10 cycles SUBI.L #1,D0 ; .4 cycles BNE DLY ; .10 cycles RTS ....... .16 cycles
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Computer Architecture A Quantitative Approach
Authors: John L. Hennessy, David A. Patterson
5th edition
012383872X, 978-8178672663
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