diff --git a/insns/IsaRV32I.py b/insns/IsaRV32I.py
index e895d8d..c1a7985 100644
--- a/insns/IsaRV32I.py
+++ b/insns/IsaRV32I.py
@@ -143,6 +143,75 @@ class IsaRV32I(Elaboratable):
         m.submodules._or = insn_submodules['or'] = InsnOr(self.RISCV_FORMAL_ILEN, self.RISCV_FORMAL_XLEN, self.RISCV_FORMAL_CSR_MISA)
         m.submodules._and = insn_submodules['and'] = InsnAnd(self.RISCV_FORMAL_ILEN, self.RISCV_FORMAL_XLEN, self.RISCV_FORMAL_CSR_MISA)
 
-        # TODO
+        for _, insn in insn_submodules.items():
+            m.d.comb += insn.rvfi_valid.eq(self.rvfi_valid)
+            m.d.comb += insn.rvfi_insn.eq(self.rvfi_insn)
+            m.d.comb += insn.rvfi_pc_rdata.eq(self.rvfi_pc_rdata)
+            m.d.comb += insn.rvfi_rs1_rdata.eq(self.rvfi_rs1_rdata)
+            m.d.comb += insn.rvfi_rs2_rdata.eq(self.rvfi_rs2_rdata)
+            m.d.comb += insn.rvfi_mem_rdata.eq(self.rvfi_mem_rdata)
+            if self.RISCV_FORMAL_CSR_MISA:
+                m.d.comb += insn.rvfi_csr_misa_rdata.eq(self.rvfi_csr_misa_rdata)
+
+        spec_valid = 0
+        for _, insn in insn_submodules.items():
+            spec_valid = Mux(insn.spec_valid, insn.spec_valid, spec_valid)
+        m.d.comb += self.spec_valid.eq(spec_valid)
+
+        spec_trap = 0
+        for _, insn in insn_submodules.items():
+            spec_trap = Mux(insn.spec_valid, insn.spec_trap, spec_trap)
+        m.d.comb += self.spec_trap.eq(spec_trap)
+
+        spec_rs1_addr = 0
+        for _, insn in insn_submodules.items():
+            spec_rs1_addr = Mux(insn.spec_valid, insn.spec_rs1_addr, spec_rs1_addr)
+        m.d.comb += self.spec_rs1_addr.eq(spec_rs1_addr)
+
+        spec_rs2_addr = 0
+        for _, insn in insn_submodules.items():
+            spec_rs2_addr = Mux(insn.spec_valid, insn.spec_rs2_addr, spec_rs2_addr)
+        m.d.comb += self.spec_rs2_addr.eq(spec_rs2_addr)
+
+        spec_rd_addr = 0
+        for _, insn in insn_submodules.items():
+            spec_rd_addr = Mux(insn.spec_valid, insn.spec_rd_addr, spec_rd_addr)
+        m.d.comb += self.spec_rd_addr.eq(spec_rd_addr)
+
+        spec_rd_wdata = 0
+        for _, insn in insn_submodules.items():
+            spec_rd_wdata = Mux(insn.spec_valid, insn.spec_rd_wdata, spec_rd_wdata)
+        m.d.comb += self.spec_rd_wdata.eq(spec_rd_wdata)
+
+        spec_pc_wdata = 0
+        for _, insn in insn_submodules.items():
+            spec_pc_wdata = Mux(insn.spec_valid, insn.spec_pc_wdata, spec_pc_wdata)
+        m.d.comb += self.spec_pc_wdata.eq(spec_pc_wdata)
+
+        spec_mem_addr = 0
+        for _, insn in insn_submodules.items():
+            spec_mem_addr = Mux(insn.spec_valid, insn.spec_mem_addr, spec_mem_addr)
+        m.d.comb += self.spec_mem_addr.eq(spec_mem_addr)
+
+        spec_mem_rmask = 0
+        for _, insn in insn_submodules.items():
+            spec_mem_rmask = Mux(insn.spec_valid, insn.spec_mem_rmask, spec_mem_rmask)
+        m.d.comb += self.spec_mem_rmask.eq(spec_mem_rmask)
+
+        spec_mem_wmask = 0
+        for _, insn in insn_submodules.items():
+            spec_mem_wmask = Mux(insn.spec_valid, insn.spec_mem_wmask, spec_mem_wmask)
+        m.d.comb += self.spec_mem_wmask.eq(spec_mem_wmask)
+
+        spec_mem_wdata = 0
+        for _, insn in insn_submodules.items():
+            spec_mem_wdata = Mux(insn.spec_valid, insn.spec_mem_wdata, spec_mem_wdata)
+        m.d.comb += self.spec_mem_wdata.eq(spec_mem_wdata)
+
+        if self.RISCV_FORMAL_CSR_MISA:
+            spec_csr_misa_rmask = 0
+            for _, insn in insn_submodules.items():
+                spec_csr_misa_rmask = Mux(insn.spec_valid, insn.spec_csr_misa_rmask, spec_csr_misa_rmask)
+            m.d.comb += self.spec_csr_misa_rmask.eq(spec_csr_misa_rmask)
 
         return m