Question: Suppose that you are working with a CISC machine using a 2.6 GHz clock (i.e., the clock ticks 2.6 billion times per second). This particular
Suppose that you are working with a CISC machine using a 2.6 GHz clock (i.e., the clock ticks 2.6 billion times per second). This particular computer uses MASM-like instructions with the following timings:
add reg, mem 7 clock cycles (i.e., the ADD micro-program has 7 instructions) add reg, immed 2 clock cycles loop label 5 clock cycles
Suppose that the following code fragment is used to sum elements of a numeric array. For this problem, assume that memory limitations are non-existent and that there is no limit to the size of the array.
mov bx, 0 ;initialize sum mov ecx, MAX_SIZE ;initialize loop counter mov esi, OFFSET list ;initialize array pointer more: add bx,[ esi ] ;add current list element add esi, 2 ;move array pointer to next element loop more ;auto-decrement ecx, jump to more if ecx 0
After initialization, how many array elements can be processed in 2.8 ms? Round your answer to the nearest integer. Note that 1 ms. = 0.001 second.
esl
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[ esi ] ;add current list element add esi, 2 ;move array pointer to next element loop more ;auto-decrement ecx, jump to more if ecx 0