diff --git a/include/alu.h b/include/alu.h
index 97068b9..e6faa05 100644
--- a/include/alu.h
+++ b/include/alu.h
@@ -1,6 +1,7 @@
 #pragma once
 #ifndef ALU_H
 #include "tools.h"
+namespace ZYM {
 struct ALU_Input {
   dark::Wire<7 + 3 + 1> request_full_id;
   dark::Wire<32> operand1;
@@ -8,16 +9,18 @@ struct ALU_Input {
   dark::Wire<5> request_ROB_index;
 };
 struct ALU_Output {
-  dark::Register<1> done;
-  dark::Register<32> result;
+  dark::Register<2> alu_status;
   dark::Register<5> result_ROB_index;
+  dark::Register<32> result;
+  dark::Register<32> completed_alu_resulting_PC;
 };
 struct ALU : public dark::Module<ALU_Input, ALU_Output> {
   ALU() {
     // Constructor
   }
-  void update() {
+  void work() {
     // Update function
   }
 };
+}
 #endif
\ No newline at end of file
diff --git a/include/csu.h b/include/csu.h
index 74fc9ed..c017036 100644
--- a/include/csu.h
+++ b/include/csu.h
@@ -16,6 +16,11 @@ struct CentralScheduleUnit_Input {
   dark::Wire<2> mem_status_receiver;
   dark::Wire<5> completed_memins_ROB_index;
   dark::Wire<32> completed_memins_read_data;
+  // data from LoadStoreQueue
+  dark::Wire<4> mem_request_type_input;
+  dark::Wire<32> mem_address_input;
+  dark::Wire<32> mem_data_input;
+  dark::Wire<5> mem_request_ROB_index;
   // data from alu
   dark::Wire<2> alu_status_receiver;
   dark::Wire<5> completed_aluins_ROB_index;
@@ -39,10 +44,17 @@ struct CentralScheduleUnit_Output {
   dark::Register<1> has_decoded_rd;
   dark::Register<5> decoded_rs1;
   dark::Register<1> has_decoded_rs1;
+  dark::Register<1> rs1_is_in_ROB;
+  dark::Register<32> rs1_in_ROB_value;
   dark::Register<5> decoded_rs2;
   dark::Register<1> has_decoded_rs2;
+  dark::Register<1> rs2_is_in_ROB;
+  dark::Register<32> rs2_in_ROB_value;
   dark::Register<32> decoded_imm;
   dark::Register<6> decoded_shamt;
+  dark::Register<1> cache_hit;
+  dark::Register<5> cache_hit_ROB_index;
+  dark::Register<32> cache_hit_data;
 };
 struct ROBRecordType {
   dark::Register<4> state;
diff --git a/include/loadstorequeue.h b/include/loadstorequeue.h
index 5fb0f5a..0e286a2 100644
--- a/include/loadstorequeue.h
+++ b/include/loadstorequeue.h
@@ -1,6 +1,7 @@
 #pragma once
 #ifndef LOADSTOREQUEUE_H
 #include "tools.h"
+namespace ZYM {
 struct LoadStoreQueue_Input {
   // receive control signal from CSU
   dark::Wire<1> reset;
@@ -14,9 +15,24 @@ struct LoadStoreQueue_Input {
   dark::Wire<1> has_decoded_rd;
   dark::Wire<5> decoded_rs1;
   dark::Wire<1> has_decoded_rs1;
+  dark::Wire<1> rs1_is_in_ROB;
+  dark::Wire<32> rs1_in_ROB_value;
   dark::Wire<5> decoded_rs2;
   dark::Wire<1> has_decoded_rs2;
+  dark::Wire<1> rs2_is_in_ROB;
+  dark::Wire<32> rs2_in_ROB_value;
   dark::Wire<32> decoded_imm;
+  // receive data from register file
+  dark::Wire<1> rs1_nodep;
+  dark::Wire<5> rs1_deps;
+  dark::Wire<32> rs1_value;
+  dark::Wire<1> rs2_nodep;
+  dark::Wire<5> rs2_deps;
+  dark::Wire<32> rs2_value;
+  // data from alu
+  dark::Wire<2> alu_status_receiver;
+  dark::Wire<5> completed_aluins_ROB_index;
+  dark::Wire<32> completed_aluins_result;
   // receive status signal from Memory
   dark::Wire<2> mem_data_sign;
   dark::Wire<5> completed_memins_ROB_index;
@@ -32,6 +48,7 @@ struct LoadStoreQueue_Output {
   dark::Register<5> request_ROB_index;
   dark::Register<32> request_address_output;
   dark::Register<32> request_data_output;
+  dark::Register<6> LSQ_remain_space_output;
 };
 struct LoadStoreQueue_Private {
   dark::Register<5> LSQ_head;
@@ -42,8 +59,9 @@ struct LoadStoreQueue: public dark::Module<LoadStoreQueue_Input,LoadStoreQueue_O
     LoadStoreQueue() {
         // Constructor
     }
-    void update() {
+    void work() {
         // Update function
     }
 };
+}
 #endif
\ No newline at end of file
diff --git a/include/registerfile.h b/include/registerfile.h
index edb81b1..359f9c9 100644
--- a/include/registerfile.h
+++ b/include/registerfile.h
@@ -1,6 +1,7 @@
 #pragma once
 #ifndef REGISTERFILE_H
 #include "tools.h"
+namespace ZYM {
 struct RegisterFile_Input {
   // receive control signal from CSU
   dark::Wire<1> reset;
@@ -29,8 +30,9 @@ struct RegisterFile : public dark::Module<RegisterFile_Input, RegisterFile_Outpu
     RegisterFile() {
         // Constructor
     }
-    void update() {
+    void work() {
         // Update function
     }
 };
+}
 #endif
\ No newline at end of file
diff --git a/include/reservestation.h b/include/reservestation.h
index c81159f..559fda9 100644
--- a/include/reservestation.h
+++ b/include/reservestation.h
@@ -1,6 +1,7 @@
 #pragma once
 #ifndef RESERVATIONSTATION_H
 #include "tools.h"
+namespace ZYM {
 struct ReserveStation_Input {
   // receive control signal from CSU
   dark::Wire<1> reset;
@@ -14,8 +15,12 @@ struct ReserveStation_Input {
   dark::Wire<1> has_decoded_rd;
   dark::Wire<5> decoded_rs1;
   dark::Wire<1> has_decoded_rs1;
+  dark::Wire<1> rs1_is_in_ROB;
+  dark::Wire<32> rs1_in_ROB_value;
   dark::Wire<5> decoded_rs2;
   dark::Wire<1> has_decoded_rs2;
+  dark::Wire<1> rs2_is_in_ROB;
+  dark::Wire<32> rs2_in_ROB_value;
   dark::Wire<32> decoded_imm;
   dark::Wire<6> decoded_shamt;
   // receive data from register file
@@ -25,6 +30,18 @@ struct ReserveStation_Input {
   dark::Wire<1> rs2_nodep;
   dark::Wire<5> rs2_deps;
   dark::Wire<32> rs2_value;
+  // data from alu
+  dark::Wire<2> alu_status_receiver;
+  dark::Wire<5> completed_aluins_ROB_index;
+  dark::Wire<32> completed_aluins_result;
+  // data from Memory
+  dark::Wire<2> mem_status_receiver;
+  dark::Wire<5> completed_memins_ROB_index;
+  dark::Wire<32> completed_memins_read_data;
+  // receive status signal from L0 cache(data from Memory)
+  dark::Wire<1> cache_hit;
+  dark::Wire<5> cache_hit_ROB_index;
+  dark::Wire<32> cache_hit_data;
 };
 struct ReserveStation_Output {
   // alu will listen for these:
@@ -32,6 +49,7 @@ struct ReserveStation_Output {
   dark::Register<32> operand1;
   dark::Register<32> operand2;
   dark::Register<5> request_ROB_index;
+  dark::Register<6> RS_remain_space_output;
 };
 struct ReserveStation_Private {
   dark::Register<5> RS_head;
@@ -41,8 +59,9 @@ struct ReserveStation : public dark::Module<ReserveStation_Input, ReserveStation
     ReserveStation() {
         // Constructor
     }
-    void update() {
+    void work() {
         // Update function
     }
 };
+}
 #endif
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index 3376009..3b0edea 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -6,20 +6,154 @@
 #include "registerfile.h"
 #include "reservestation.h"
 #include "tools.h"
-template <int N>
-inline static void DirectWireConnect(dark::Register<N> &src, dark::Wire<N> &dest) {
+template <std::size_t N>
+inline static void RWConnect(dark::Register<N> &src, dark::Wire<N> &dest) {
   dest.assign([&]() -> auto & { return src; });
 }
 int main(int argc, char **argv) {
   dark::CPU cpu;
   ZYM::CentralScheduleUnit csu;
   ZYM::Memory memory;
+  ZYM::LoadStoreQueue lsq;
+  ZYM::ALU alu;
+  ZYM::RegisterFile rf;
+  ZYM::ReserveStation rs;
   cpu.add_module(&csu);
   cpu.add_module(&memory);
+  cpu.add_module(&lsq);
+  cpu.add_module(&alu);
+  cpu.add_module(&rf);
+  cpu.add_module(&rs);
+  // some basic siganls
   cpu.halt_signal.assign([&]() -> auto & { return csu.halt_signal; });
-  memory.reset = [&]() { return cpu.GetResetSignal(); };
-  memory.LoadProgram(std::cin);
   csu.SetInstructionFetcher([&](auto addr) { return memory.FetchInstruction(addr); });
+  csu.reset.assign([&]() { return cpu.GetResetSignal(); });
+  memory.reset.assign([&]() { return cpu.GetResetSignal(); });
+  memory.LoadProgram(std::cin);
+  lsq.reset.assign([&]() { return cpu.GetResetSignal(); });
+  // alu.reset.assign([&]() { return cpu.GetResetSignal(); });
+  rf.reset.assign([&]() { return cpu.GetResetSignal(); });
+  rs.reset.assign([&]() { return cpu.GetResetSignal(); });
+  // now connect the wires, see the comment and docs for help
+  // csu <-> memory
+  RWConnect(csu.force_clear_announcer, memory.force_clear_receiver);
+  RWConnect(memory.data_sign, csu.mem_status_receiver);
+  RWConnect(memory.completed_memins_ROB_index, csu.completed_memins_ROB_index);
+  RWConnect(memory.completed_memins_read_data, csu.completed_memins_read_data);
+  // csu <-> lsq
+  RWConnect(csu.force_clear_announcer, lsq.force_clear_receiver);
+  RWConnect(csu.is_issuing, lsq.is_issuing);
+  RWConnect(csu.issue_type, lsq.issue_type);
+  RWConnect(csu.issue_ROB_index, lsq.issue_ROB_index);
+  RWConnect(csu.full_ins_id, lsq.full_ins_id);
+  RWConnect(csu.full_ins, lsq.full_ins);
+  RWConnect(csu.decoded_rd, lsq.decoded_rd);
+  RWConnect(csu.has_decoded_rd, lsq.has_decoded_rd);
+  RWConnect(csu.decoded_rs1, lsq.decoded_rs1);
+  RWConnect(csu.has_decoded_rs1, lsq.has_decoded_rs1);
+  RWConnect(csu.rs1_is_in_ROB, lsq.rs1_is_in_ROB);
+  RWConnect(csu.rs1_in_ROB_value, lsq.rs1_in_ROB_value);
+  RWConnect(csu.decoded_rs2, lsq.decoded_rs2);
+  RWConnect(csu.has_decoded_rs2, lsq.has_decoded_rs2);
+  RWConnect(csu.rs2_is_in_ROB, lsq.rs2_is_in_ROB);
+  RWConnect(csu.rs2_in_ROB_value, lsq.rs2_in_ROB_value);
+  RWConnect(csu.decoded_imm, lsq.decoded_imm);
+  RWConnect(csu.cache_hit, lsq.cache_hit);
+  RWConnect(csu.cache_hit_ROB_index, lsq.cache_hit_ROB_index);
+  RWConnect(csu.cache_hit_data, lsq.cache_hit_data);
+  RWConnect(lsq.request_type_output, csu.mem_request_type_input);
+  RWConnect(lsq.request_ROB_index, csu.mem_request_ROB_index);
+  RWConnect(lsq.request_address_output, csu.mem_address_input);
+  RWConnect(lsq.request_data_output, csu.mem_data_input);
+  RWConnect(lsq.LSQ_remain_space_output, csu.load_store_queue_emptyspace_receiver);
+  // csu <-> alu
+  RWConnect(alu.alu_status, csu.alu_status_receiver);
+  RWConnect(alu.result_ROB_index, csu.completed_aluins_ROB_index);
+  RWConnect(alu.result, csu.completed_aluins_result);
+  RWConnect(alu.completed_alu_resulting_PC, csu.completed_alu_resulting_PC);
+  // csu <-> register file
+  RWConnect(csu.force_clear_announcer, rf.force_clear_receiver);
+  RWConnect(csu.is_issuing, rf.is_issuing);
+  RWConnect(csu.issue_type, rf.issue_type);
+  RWConnect(csu.issue_ROB_index, rf.issue_ROB_index);
+  RWConnect(csu.full_ins_id, rf.full_ins_id);
+  RWConnect(csu.full_ins, rf.full_ins);
+  RWConnect(csu.decoded_rd, rf.decoded_rd);
+  RWConnect(csu.has_decoded_rd, rf.has_decoded_rd);
+  RWConnect(csu.decoded_rs1, rf.decoded_rs1);
+  RWConnect(csu.has_decoded_rs1, rf.has_decoded_rs1);
+  RWConnect(csu.decoded_rs2, rf.decoded_rs2);
+  RWConnect(csu.has_decoded_rs2, rf.has_decoded_rs2);
+  RWConnect(rf.rs1_nodep, csu.rs1_nodep);
+  RWConnect(rf.rs1_deps, csu.rs1_deps);
+  RWConnect(rf.rs2_nodep, csu.rs2_nodep);
+  RWConnect(rf.rs2_deps, csu.rs2_deps);
+  // csu <-> reserve station
+  RWConnect(csu.force_clear_announcer, rs.force_clear_receiver);
+  RWConnect(csu.is_issuing, rs.is_issuing);
+  RWConnect(csu.issue_type, rs.issue_type);
+  RWConnect(csu.issue_ROB_index, rs.issue_ROB_index);
+  RWConnect(csu.full_ins_id, rs.full_ins_id);
+  RWConnect(csu.full_ins, rs.full_ins);
+  RWConnect(csu.decoded_rd, rs.decoded_rd);
+  RWConnect(csu.has_decoded_rd, rs.has_decoded_rd);
+  RWConnect(csu.decoded_rs1, rs.decoded_rs1);
+  RWConnect(csu.has_decoded_rs1, rs.has_decoded_rs1);
+  RWConnect(csu.rs1_is_in_ROB, rs.rs1_is_in_ROB);
+  RWConnect(csu.rs1_in_ROB_value, rs.rs1_in_ROB_value);
+  RWConnect(csu.decoded_rs2, rs.decoded_rs2);
+  RWConnect(csu.has_decoded_rs2, rs.has_decoded_rs2);
+  RWConnect(csu.rs2_is_in_ROB, rs.rs2_is_in_ROB);
+  RWConnect(csu.rs2_in_ROB_value, rs.rs2_in_ROB_value);
+  RWConnect(csu.decoded_imm, rs.decoded_imm);
+  RWConnect(csu.decoded_shamt, rs.decoded_shamt);
+  RWConnect(csu.cache_hit, rs.cache_hit);
+  RWConnect(csu.cache_hit_ROB_index, rs.cache_hit_ROB_index);
+  RWConnect(csu.cache_hit_data, rs.cache_hit_data);
+  RWConnect(rs.RS_remain_space_output, csu.reservestation_emptyspace_receiver);
+  // memory <-> lsq
+  RWConnect(memory.data_sign, lsq.mem_data_sign);
+  RWConnect(memory.completed_memins_ROB_index, lsq.completed_memins_ROB_index);
+  RWConnect(memory.completed_memins_read_data, lsq.completed_memins_read_data);
+  RWConnect(lsq.request_type_output, memory.request_type_input);
+  RWConnect(lsq.request_ROB_index, memory.request_ROB_index);
+  RWConnect(lsq.request_address_output, memory.address_input);
+  RWConnect(lsq.request_data_output, memory.data_input);
+  // memory <-> alu : no connections
+  // memory <-> register file : no connections
+  // memory <-> reserve station :
+  RWConnect(memory.data_sign, rs.mem_status_receiver);
+  RWConnect(memory.completed_memins_ROB_index, rs.completed_memins_ROB_index);
+  RWConnect(memory.completed_memins_read_data, rs.completed_memins_read_data);
+  // lsq <-> alu :
+  RWConnect(alu.alu_status, lsq.alu_status_receiver);
+  RWConnect(alu.result_ROB_index, lsq.completed_aluins_ROB_index);
+  RWConnect(alu.result, lsq.completed_aluins_result);
+  // lsq <-> register file
+  RWConnect(rf.rs1_nodep, lsq.rs1_nodep);
+  RWConnect(rf.rs1_deps, lsq.rs1_deps);
+  RWConnect(rf.rs1_value, lsq.rs1_value);
+  RWConnect(rf.rs2_nodep, lsq.rs2_nodep);
+  RWConnect(rf.rs2_deps, lsq.rs2_deps);
+  RWConnect(rf.rs2_value, lsq.rs2_value);
+  // lsq <-> reserve station : no connections
+  // alu <-> register file : no connections
+  // alu <-> reserve station
+  RWConnect(rs.request_full_id, alu.request_full_id);
+  RWConnect(rs.operand1, alu.operand1);
+  RWConnect(rs.operand2, alu.operand2);
+  RWConnect(rs.request_ROB_index, alu.request_ROB_index);
+  RWConnect(alu.alu_status, rs.alu_status_receiver);
+  RWConnect(alu.result_ROB_index, rs.completed_aluins_ROB_index);
+  RWConnect(alu.result, rs.completed_aluins_result);
+  // register file <-> reserve station
+  RWConnect(rf.rs1_nodep, rs.rs1_nodep);
+  RWConnect(rf.rs1_deps, rs.rs1_deps);
+  RWConnect(rf.rs1_value, rs.rs1_value);
+  RWConnect(rf.rs2_nodep, rs.rs2_nodep);
+  RWConnect(rf.rs2_deps, rs.rs2_deps);
+  RWConnect(rf.rs2_value, rs.rs2_value);
+  // now start running
   std::cout << cpu.run(0, true) << std::endl;
   return 0;
 }
\ No newline at end of file