22. . The table Q22 presents the results of executing the following quite random C code at several Arduino boards (S. Monk, Programming Arduino Next Steps, p.70-71): { long i=0, j=0; for (i=0, is 2000000000, i++) j = i + i *10; if (j>10) j=0; } Table Q22 Board CPU Uno Leonardo Mini Pro Mega Due AVR 8 bit @ 16 MHz AVR 8 bit @ 16 MHz AVR 8 bit @ 16 MHz AVR 8 bit @ 16 MHz ARM Cortex M3 32 bit @ 84 MHz Execution time, ms 28 29 28 28 2 lalalala (a) (b) Describe the operations that are performed in this test code, and the relevant data type(s). Compare this test with the industry standard benchmarks Whetstone, Dhrystone, CoreMark in terms of what sort of performance is benchmarked. (4 Marks) Uno, Leonardo and Mega boards use microcontrollers (SoCs) with different capabilities in terms of peripherals, RAM and flash memories. How come their execution times are nearly identical? (2 Marks) Based on the data from the middle column of Table Q22, try to explain the observed differences in the execution time between Uno and Due. Show your working. (4 Marks) (c) 22. . The table Q22 presents the results of executing the following quite random C code at several Arduino boards (S. Monk, Programming Arduino Next Steps, p.70-71): { long i=0, j=0; for (i=0, is 2000000000, i++) j = i + i *10; if (j>10) j=0; } Table Q22 Board CPU Uno Leonardo Mini Pro Mega Due AVR 8 bit @ 16 MHz AVR 8 bit @ 16 MHz AVR 8 bit @ 16 MHz AVR 8 bit @ 16 MHz ARM Cortex M3 32 bit @ 84 MHz Execution time, ms 28 29 28 28 2 lalalala (a) (b) Describe the operations that are performed in this test code, and the relevant data type(s). Compare this test with the industry standard benchmarks Whetstone, Dhrystone, CoreMark in terms of what sort of performance is benchmarked. (4 Marks) Uno, Leonardo and Mega boards use microcontrollers (SoCs) with different capabilities in terms of peripherals, RAM and flash memories. How come their execution times are nearly identical? (2 Marks) Based on the data from the middle column of Table Q22, try to explain the observed differences in the execution time between Uno and Due. Show your working. (4 Marks) (c)