Define ID clk IR_ID[15..0] PC[15..0] src1[15..0] src2[15..0] src3[15..0] |
          src1_sel[0..3] src2_sel[0..3] src3_sel[0..3]
          PC1[15..0] A[15..0] B[15..0] IR_Const[15..0] D[15..0];


Endef;