diff --git a/lab2/a/a_meng/3/susan.sc b/lab2/a/a_meng/3/susan.sc
@@ -12,37 +12,8 @@ import "susan_thin";
 import "edge_draw";
 import "os";
 
-/*     
-behavior Susan(i_uchar7220r_receiver in_image, i_uchar7220s_sender out_image) 
-{
-
-    OS rtos;
-
-    c_int7220sr_queue r(1ul);
-    c_uchar7220sr_queue mid(1ul);
-    c_uchar7220sr_queue mid_edge_draw(1ul);
-    c_uchar7220sr_queue image_edge_draw(1ul);
-
-    Edges edges(in_image, r, mid, image_edge_draw, rtos);
-    Thin thin(r, mid, mid_edge_draw, rtos);
-    Draw draw(image_edge_draw, mid_edge_draw, out_image, rtos);
-        
-    void main(void)
-    {
-        par {
-            edges;
-            thin;
-            draw;
-        }      
-    }
-   
-};   
-*/
 behavior TASK_PE1(i_uchar7220r_receiver in_image, i_uchar7220s_sender out_image, OSAPI rtos){
 
-//    struct Task sedge;
-//    struct Task sthin;
-//    struct Task sdraw;
 
     c_int7220sr_queue r(1ul, rtos);
     c_uchar7220sr_queue mid(1ul, rtos);
@@ -55,8 +26,18 @@ behavior TASK_PE1(i_uchar7220r_receiver in_image, i_uchar7220s_sender out_image,
 
     struct Task my_t;
 
+    struct Task e;
+    struct Task t;
+    struct Task d;
+
+
     void main(void){
 
+	//e = rtos.task_create("edges");
+	//t = rtos.task_create("thin");
+	//d = rtos.task_create("draw"):
+
+	//rtos.init(e);
 	edges.init();
 	thin.init();
 	draw.init();

diff --git a/lab2/a/a_meng/3/susan.si b/lab2/a/a_meng/3/susan.si
@@ -1,5 +1,5 @@
 # 1 "susan.sc"
-# 1 "/home/ecelrc/students/mli2/EE382N/LAB1/EMBEDDED_SYSTEM_DESIGN/lab2/a/a_meng/3//"
+# 1 "/home/ecelrc/students/ssong/labs/lab2/a/a_meng/3//"
 # 1 "<built-in>"
 # 1 "<command line>"
 # 1 "susan.sc"
@@ -2745,11 +2745,8 @@ import "detect_edges";
 import "susan_thin";
 import "edge_draw";
 import "os";
-# 41 "susan.sc"
-behavior TASK_PE1(i_uchar7220r_receiver in_image, i_uchar7220s_sender out_image, OSAPI rtos){
-
-
 
+behavior TASK_PE1(i_uchar7220r_receiver in_image, i_uchar7220s_sender out_image, OSAPI rtos){
 
 
     c_int7220sr_queue r(1ul, rtos);
@@ -2763,8 +2760,18 @@ behavior TASK_PE1(i_uchar7220r_receiver in_image, i_uchar7220s_sender out_image,
 
     struct Task my_t;
 
+    struct Task e;
+    struct Task t;
+    struct Task d;
+
+
     void main(void){
 
+
+
+
+
+
  edges.init();
  thin.init();
  draw.init();

diff --git a/lab2/a/a_meng/3/susan.sir b/lab2/a/a_meng/3/susan.sir
diff --git a/lab2/a/a_meng/3/susan_edge_detector b/lab2/a/a_meng/3/susan_edge_detector
diff --git a/lab2/a/a_meng/3/susan_edge_detector.cc b/lab2/a/a_meng/3/susan_edge_detector.cc
diff --git a/lab2/a/a_meng/3/susan_edge_detector.h b/lab2/a/a_meng/3/susan_edge_detector.h
@@ -2,7 +2,7 @@
 // C++ header file generated by SpecC V2.2.1
 // Design: susan_edge_detector
 // File:   susan_edge_detector.h
-// Time:   Tue Oct 20 16:43:04 2015
+// Time:   Tue Oct 20 17:24:51 2015
 //////////////////////////////////////////////////////////////////////
 
 // Note: User-defined include files are inlined in this file.
@@ -1557,7 +1557,7 @@ class OS : public _specc::channel, public OSAPI
     unsigned int head;
 
 #line 35 "./os.sc"
-    struct Task rdyq[3];
+    struct Task rdyq[20];
 
 #line 44 "./os.sc"
     unsigned int start;
@@ -1568,7 +1568,7 @@ class OS : public _specc::channel, public OSAPI
     unsigned int task_pool;
 
 #line 37 "./os.sc"
-    c_handshake e0; c_handshake e1; c_handshake e2;
+    c_handshake e0; c_handshake e1; c_handshake e10; c_handshake e11; c_handshake e12; c_handshake e13; c_handshake e14; c_handshake e15; c_handshake e16; c_handshake e17; c_handshake e18; c_handshake e19; c_handshake e2; c_handshake e3; c_handshake e4; c_handshake e5; c_handshake e6; c_handshake e7; c_handshake e8; c_handshake e9;
 };
 
 #line 70 "c_double_handshake.sc"
@@ -2383,12 +2383,12 @@ class Thin : public _specc::behavior, public ST
     SusanThin_WriteOutput susan_thin_write_output;
 };
 
-#line 41 "susan.sc"
+#line 15 "susan.sc"
 class TASK_PE1 : public _specc::behavior
 {
 private:
 
-#line 41 "susan.sc"
+#line 15 "susan.sc"
     i_uchar7220r_receiver (&in_image); i_uchar7220s_sender (&out_image); OSAPI (&rtos);
 public:
 
@@ -2398,49 +2398,58 @@ class TASK_PE1 : public _specc::behavior
     void main(void);
 private:
 
-#line 56 "susan.sc"
+#line 31 "susan.sc"
+    struct Task d;
+
+#line 29 "susan.sc"
+    struct Task e;
+
+#line 27 "susan.sc"
     struct Task my_t;
+
+
+    struct Task t;
     unsigned long int _scc_const_port_0;
     unsigned long int _scc_const_port_1;
     unsigned long int _scc_const_port_2;
     unsigned long int _scc_const_port_3;
 
-#line 54 "susan.sc"
+#line 25 "susan.sc"
     Draw draw;
 
-#line 52 "susan.sc"
+#line 23 "susan.sc"
     Edges edges;
 
-#line 50 "susan.sc"
+#line 21 "susan.sc"
     c_uchar7220sr_queue image_edge_draw;
 
-#line 48 "susan.sc"
+#line 19 "susan.sc"
     c_uchar7220sr_queue mid;
     c_uchar7220sr_queue mid_edge_draw;
 
-#line 47 "susan.sc"
+#line 18 "susan.sc"
     c_int7220sr_queue r;
 
-#line 53 "susan.sc"
+#line 24 "susan.sc"
     Thin thin;
 };
 
-#line 78 "susan.sc"
+#line 59 "susan.sc"
 class PE1 : public _specc::behavior
 {
 private:
 
-#line 78 "susan.sc"
+#line 59 "susan.sc"
     i_uchar7220r_receiver (&in_image); i_uchar7220s_sender (&out_image); OSAPI (&rtos);
 public:
 
-#line 2438 "susan_edge_detector.h"
+#line 2447 "susan_edge_detector.h"
     PE1(unsigned int _idcnt, i_uchar7220r_receiver (&in_image), i_uchar7220s_sender (&out_image), OSAPI (&rtos));
     virtual ~PE1(void);
     void main(void);
 private:
 
-#line 79 "susan.sc"
+#line 60 "susan.sc"
     TASK_PE1 task_pe1;
 };
 
@@ -2453,7 +2462,7 @@ class Design : public _specc::behavior
     i_receive (&start); unsigned char (&image_buffer)[7220]; i_sender (&out_image_susan);
 public:
 
-#line 2457 "susan_edge_detector.h"
+#line 2466 "susan_edge_detector.h"
     Design(unsigned int _idcnt, i_receive (&start), unsigned char (&image_buffer)[7220], i_sender (&out_image_susan));
     virtual ~Design(void);
     void main(void);
@@ -2475,7 +2484,7 @@ class Design : public _specc::behavior
 #line 35 "design.sc"
     OS rtos;
 
-#line 46 "design.sc"
+#line 44 "design.sc"
     WriteImage_wp write_image;
 };
 
@@ -2488,7 +2497,7 @@ class Monitor : public _specc::behavior
     i_receiver (&img); i_receiver (&start_time_channel);
 public:
 
-#line 2492 "susan_edge_detector.h"
+#line 2501 "susan_edge_detector.h"
     Monitor(unsigned int _idcnt, i_receiver (&img), i_receiver (&start_time_channel));
     virtual ~Monitor(void);
     void main(void);
@@ -2504,7 +2513,7 @@ class Stimulus : public _specc::behavior
     i_send (&start); unsigned char (&image_buffer)[7220]; i_sender (&start_time_channel);
 public:
 
-#line 2508 "susan_edge_detector.h"
+#line 2517 "susan_edge_detector.h"
     Stimulus(unsigned int _idcnt, i_send (&start), unsigned char (&image_buffer)[7220], i_sender (&start_time_channel));
     virtual ~Stimulus(void);
     void get_image(char [200], unsigned char *);
@@ -2519,7 +2528,7 @@ class Main : public _specc::class_type
 private:
 public:
 
-#line 2523 "susan_edge_detector.h"
+#line 2532 "susan_edge_detector.h"
     Main(unsigned int _idcnt);
     virtual ~Main(void);
     int main(void);
@@ -3445,7 +3454,7 @@ extern "C" const char *time2str(char [21], unsigned long long int);
 
 extern "C" unsigned long long int str2time(const char *);
 
-#line 3449 "susan_edge_detector.h"
+#line 3458 "susan_edge_detector.h"
 void _scc_bit4_err_handle(const _bit4&);
 
 //////////////////////////////////////////////////////////////////////

diff --git a/lab2/a/a_meng/3/susan_edge_detector.o b/lab2/a/a_meng/3/susan_edge_detector.o
diff --git a/lab2/a/a_meng/3/susan_edge_detector.si b/lab2/a/a_meng/3/susan_edge_detector.si
@@ -1,5 +1,5 @@
 # 1 "susan_edge_detector.sc"
-# 1 "/home/ecelrc/students/mli2/EE382N/LAB1/EMBEDDED_SYSTEM_DESIGN/lab2/a/a_meng/3//"
+# 1 "/home/ecelrc/students/ssong/labs/lab2/a/a_meng/3//"
 # 1 "<built-in>"
 # 1 "<command line>"
 # 1 "susan_edge_detector.sc"

diff --git a/lab2/a/a_meng/3/susan_edge_detector.sir b/lab2/a/a_meng/3/susan_edge_detector.sir
diff --git a/lab2/a/a_meng/3/susan_edges.si b/lab2/a/a_meng/3/susan_edges.si
@@ -1,5 +1,5 @@
 # 1 "susan_edges.sc"
-# 1 "/home/ecelrc/students/mli2/EE382N/LAB1/EMBEDDED_SYSTEM_DESIGN/lab2/a/a_meng/3//"
+# 1 "/home/ecelrc/students/ssong/labs/lab2/a/a_meng/3//"
 # 1 "<built-in>"
 # 1 "<command line>"
 # 1 "susan_edges.sc"

diff --git a/lab2/a/a_meng/3/susan_edges.sir b/lab2/a/a_meng/3/susan_edges.sir
diff --git a/lab2/a/a_meng/3/susan_thin.si b/lab2/a/a_meng/3/susan_thin.si
@@ -1,5 +1,5 @@
 # 1 "susan_thin.sc"
-# 1 "/home/ecelrc/students/mli2/EE382N/LAB1/EMBEDDED_SYSTEM_DESIGN/lab2/a/a_meng/3//"
+# 1 "/home/ecelrc/students/ssong/labs/lab2/a/a_meng/3//"
 # 1 "<built-in>"
 # 1 "<command line>"
 # 1 "susan_thin.sc"

diff --git a/lab2/a/a_meng/3/susan_thin.sir b/lab2/a/a_meng/3/susan_thin.sir
diff --git a/lab2/a/a_meng/3/write_image.si b/lab2/a/a_meng/3/write_image.si
@@ -1,5 +1,5 @@
 # 1 "write_image.sc"
-# 1 "/home/ecelrc/students/mli2/EE382N/LAB1/EMBEDDED_SYSTEM_DESIGN/lab2/a/a_meng/3//"
+# 1 "/home/ecelrc/students/ssong/labs/lab2/a/a_meng/3//"
 # 1 "<built-in>"
 # 1 "<command line>"
 # 1 "write_image.sc"

diff --git a/lab2/a/a_meng/3/write_image.sir b/lab2/a/a_meng/3/write_image.sir