f. Write a segment of code in C to program the bottom 3 bits of port C as outputs g. What are the usual steps required to utilise an interrupt handler in the ARM Cortex- h. Write an assembly language fragment for the MK20 that subtracts two 32-bit integers driving the value "101" without disturbing the other bits of the port. M4 device? to produce a 32-bit result. The two numbers to be added lie in memory starting at address 0x100 and 0x104, the result is placed in memory starting at address 0x108 i. Indicate the type of memory (RAM or ROM) that would be the likely location for each of the following assembly code lines .byte 1,2,3,4 .skip 10 ldr r3,-0x100 j. What would be the contents of r3 and the carry flag after executing the following code sequence? ldr r5,-0x8000011E adds r3,r5,r5