Based on the first operand of the first step of the execute stage in Figures 4.18 to 4.21, write an HCL description for the signal aluB in SEQ.

Figures 4.18

Figures 4.21

Stage Fetch Decode Execute Memory Write back PC update OPq rA, rB icode: ifun rA:B M [PC] M [PC + 1] valp PC+2 valA - R[rA] valB R[RB] valEvalB OP valA Set CC R[rB] valE PC - valP rrmov rA, rB icode: ifun TA:rB valp PC+2 valA - R[RA] valE - M[PC] M[PC + 1] PC - 0 + valA R[RB] valE valP irmov V, rB icode: ifun + M[PC] rA:rB M[PC + 1] valc Mg[PC + 2] valp PC + 10 valE 0+ valC R[RB] 4 valE PC - valp