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Problem 6: (8 pts, 4 each sub-part) Let register x28 hold the hex number 00a47c40hex- a) (4 pts) What value will be found in register x29 after the following sequence of RISC-V code and why? bne x28, xe, Lab1 j EXIT Labl addi x29, x28, 4 EXIT b) (4 pts) If the program counter (PC) for instruction j is 0000 0000 1000 ffff hex, what is the set of possible values of the PC after ju mp executes? b. addi St1, Ss0, 12 c. addi Stl, Ss0, 32 Solution: Problem 7: (8 pts) a) Xpts) Let's consider the RISC-V code below. Indicate what the value in register x20 after the code below is executed, and explain why: ori x18, x0, 16 addi x20, x18,0 beq x20, x18, HERE add x20, x20, x20 HERE b) (3 pts) Assume that the code above is part of a procedure called by main. What happens with the stack pointer (sp) during the procedure execution and why? Draw and explain. Solution