In this problem, you will design $($draw a datapath$)$ for a block that will help your

processor decide whether to take a branch for different conditions. As input, your block

will be given an opcode for the type of branch and signals from the ALU which perform

the actual comparisons. Your block will produce a single signal branch as output. The

internals of your block should be combinational $($logic gates and possibly muxes$).$

Inputs:

$$ zero $-1$ if R$[$rs$1]-$ R$[$rs$2]=0,0$ otherwise

$$ lt $-1$ if R$[$rs$1]<$ R$[$rs$2],0$ otherwise

$$ opcode $(2$b$)-00$: blt $(<),01$: bge $(>=),$

$10$: beq $(==),11$: bne $(!=)$

Output:

$$ branch $-1$ if branch should be taken, $0$ if not