Indicate the MIPS assembly corresponding to the following C blocks of code.

You can assume that the values of variables x and y are stored in registers R1 and R2, respectively. (a) [6 points]

if (x==1) then 

x+=5; else

x+=20;

(b)

for (int x=0; x<20; x++) y=y-2; 

For block of code (b), show two solutions: one using only conditional branches, and one using also an unconditional branch (or jump). [7 for solution #1 + 7 for solution #2] Which assembly code is better? Why? [3 points]

How can you easily distinguish a loop from an if-else-then block in an assembly program? [3 points]