diff --git a/lab1/src/main/scala/riscv/core/CPU.scala b/lab1/src/main/scala/riscv/core/CPU.scala
index 5d16bfc..094229d 100644
--- a/lab1/src/main/scala/riscv/core/CPU.scala
+++ b/lab1/src/main/scala/riscv/core/CPU.scala
@@ -50,6 +50,13 @@ class CPU extends Module {
 
   // lab1(cpu)
 
+  ex.io.instruction := inst_fetch.io.instruction
+  ex.io.instruction_address := inst_fetch.io.instruction_address
+  ex.io.reg1_data := regs.io.read_data1
+  ex.io.reg2_data := regs.io.read_data2
+  ex.io.immediate := id.io.ex_immediate
+  ex.io.aluop1_source := id.io.ex_aluop1_source
+  ex.io.aluop2_source := id.io.ex_aluop2_source