Homework Answers
Clock Frequency is 80MHz
80MHz/12 = 6.66MHz
1/6.66 = 0.150 us is the Machine Cycle.
MOV - 1 Machine Cycle
LDR - 1 Machine Cycle
NOP - 1 Machine Cycle
SUBS - 2 Machine Cycle
BNE - 1 Machine Cycle
SUBS - 2 Machine Cycle
BNE - 1 Machine Cycle
in the above code there are 2 loops. one is from here to here and other loop is from again to again.
so here: (1+2+1)*400=1600*0.15us = 240us
so again: (1+2+1)*200 = 800*0.15us = 120us
in this case here loop runs for 200 times so, 200*240 = 48000us
so the total delay is 0.15 + 48000 + 120 = 48120.15 us
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