Problem 5 (20 points) Design a MIPS processor supporting only the R-type and the jset rs, rt, rd instruction. The _et rs, rt, rd instruction does the following:
If rs is not equal to rt, the next PC is the memory content at rs+rt and rd is set to be rs+rt; otherwise, the next pc is PC+4 and register $ra is set to be PC+4.
Recall that $ra is the special register used in the instruction.
For example.
• if r and are 20 and 8 respectively. r will be 28. and will be the memory content at 28. • if r = and 7 are 20 and 20 respectively. r Ci will not be changed, PC will be PC+4. and $ra will be PC+4.
For this problem. assume that the – -_-ir of R-type is 000000 and the opcode of j set is 100000.
(a) (15 points) Show the data path of this processor. add 2-1 MUX when necessary. Besides a group of wires. please show clearly the indices of the bits.
(b) (5 points) Consider the control signals for the 2-1 MUX. Please fill in the table (you should no
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