Add skeleton classes for 5 major pipeline stages

7 files changed, 81 insertions, 10 deletions

diff --git a/src/sim/controller.cc b/src/sim/controller.cc
index 8d48dc9..93fd0e0 100644
--- a/src/sim/controller.cc
+++ b/src/sim/controller.cc
@@ -1,7 +1,14 @@
 #include "controller.h"
+#include "ex.h"
+#include "id.h"
+#include "if.h"
+#include "mm.h"
+#include "response.h"
 #include "storage.h"
+#include "wb.h"
 
 Controller::Controller(Storage *storage, bool is_pipelined)
+	: Stage(nullptr)
 {
 	this->clock_cycle = 0;
 	this->storage = storage;
@@ -9,12 +16,14 @@ Controller::Controller(Storage *storage, bool is_pipelined)
 	this->pc = 0x0;
 	this->gprs = {0};
 
-	// setup the other pipeline stages
-	this->next = nullptr;
+	IF *f = new IF(nullptr);
+	ID *d = new ID(f);
+	EX *e = new EX(d);
+	MM *m = new MM(e);
+	WB *w = new WB(m);
+	this->next = w;
 }
 
-Controller::~Controller() { ; }
-
 void Controller::run_for(int number)
 {
 	int i;
@@ -25,14 +34,13 @@ void Controller::run_for(int number)
 
 int Controller::get_clock_cycle() { return this->clock_cycle; }
 
-std::array<int, GPR_NUM> Controller::get_gprs() {
-	return this->gprs;
-}
+std::array<int, GPR_NUM> Controller::get_gprs() { return this->gprs; }
 
 int Controller::get_pc() { return this->pc; }
 
-void Controller::advance() {
-	;
-	// this->next->advance()
+Response Controller::advance()
+{
+	this->next->advance();
 	++this->clock_cycle;
+	return OK;
 }
diff --git a/src/sim/ex.cc b/src/sim/ex.cc
new file mode 100644
index 0000000..f286713
--- /dev/null
+++ b/src/sim/ex.cc
@@ -0,0 +1,11 @@
+#include "ex.h"
+#include "logger.h"
+#include "response.h"
+
+static Logger *global_log = Logger::getInstance();
+
+Response EX::advance()
+{
+	global_log->log(INFO, "hello from execute!");
+	return OK;
+}
diff --git a/src/sim/id.cc b/src/sim/id.cc
new file mode 100644
index 0000000..56d9549
--- /dev/null
+++ b/src/sim/id.cc
@@ -0,0 +1,11 @@
+#include "id.h"
+#include "logger.h"
+#include "response.h"
+
+static Logger *global_log = Logger::getInstance();
+
+Response ID::advance()
+{
+	global_log->log(INFO, "hello from decode!");
+	return OK;
+}
diff --git a/src/sim/if.cc b/src/sim/if.cc
new file mode 100644
index 0000000..1026072
--- /dev/null
+++ b/src/sim/if.cc
@@ -0,0 +1,15 @@
+#include "if.h"
+#include "logger.h"
+#include "response.h"
+
+static Logger *global_log = Logger::getInstance();
+
+Response IF::advance()
+{
+	global_log->log(INFO, "hello from fetch!");
+	return OK;
+}
+
+
+
+
diff --git a/src/sim/mm.cc b/src/sim/mm.cc
new file mode 100644
index 0000000..be774ad
--- /dev/null
+++ b/src/sim/mm.cc
@@ -0,0 +1,11 @@
+#include "mm.h"
+#include "logger.h"
+#include "response.h"
+
+static Logger *global_log = Logger::getInstance();
+
+Response MM::advance()
+{
+	global_log->log(INFO, "hello from memory!");
+	return OK;
+}
diff --git a/src/sim/stage.cc b/src/sim/stage.cc
index 7d3a678..399743a 100644
--- a/src/sim/stage.cc
+++ b/src/sim/stage.cc
@@ -1,5 +1,9 @@
 #include "stage.h"
 
+Stage::Stage(Stage *next) {
+	this->next = next;
+}
+
 std::array<int, GPR_NUM> Stage::gprs;
 int Stage::pc;
 Storage *Stage::storage;
diff --git a/src/sim/wb.cc b/src/sim/wb.cc
new file mode 100644
index 0000000..83b1c3c
--- /dev/null
+++ b/src/sim/wb.cc
@@ -0,0 +1,11 @@
+#include "wb.h"
+#include "logger.h"
+#include "response.h"
+
+static Logger *global_log = Logger::getInstance();
+
+Response WB::advance()
+{
+	global_log->log(INFO, "hello from write back!");
+	return OK;
+}