Intro to microprocessor

Need help with 6.5, 6.6 and 6.7 please

Will be assigned to the variable err. Your program should also produce the control (cont, in this problem) as + 1 if the variable err is less than zero and - 1 if it is than zero. Find the first four values of the variable y as the code in Listing 6.12 is run. Listing 6.12 The C code for Prob. 6.5. # include void main (void) { WDTCTL = WDTPW|WDTHOLD; int a = 4; int mask = 0x0003; int y = 0xFFFF; while (a) { a - = 1; y = (y ^mask) & a; } while (1); } What will be the entries of the array arr as the code in Listing 6.13 is run? Listing 6.13 The C code for Prob. 6.6. # include void main () WDTCTL = WDTPW|WDTHOLD; float arr [] = { 2.56, 4.88, 6.93, 0.0, 0.0); float *ptr = arr, sum = 0; short i; for (i = 0; I