diff --git a/Checkpoint/arith_gt_float.dat b/Checkpoint/arith_gt_float.dat
new file mode 100755
index 0000000..3710028
--- /dev/null
+++ b/Checkpoint/arith_gt_float.dat
@@ -0,0 +1,3 @@
+funct: arith
+gin: x, float, 19
+gin: y, float, 2.5
diff --git a/Checkpoint/arith_gt_float.glsl b/Checkpoint/arith_gt_float.glsl
new file mode 100755
index 0000000..c64a684
--- /dev/null
+++ b/Checkpoint/arith_gt_float.glsl
@@ -0,0 +1,7 @@
+float x;
+float y;
+
+bool arith()
+{
+  return x > y;
+}
diff --git a/Checkpoint/arith_gt_float.out b/Checkpoint/arith_gt_float.out
new file mode 100755
index 0000000..bbb3397
--- /dev/null
+++ b/Checkpoint/arith_gt_float.out
@@ -0,0 +1 @@
+Result: -1
diff --git a/Checkpoint/arith_post_dec_int.dat b/Checkpoint/arith_post_dec_int.dat
new file mode 100755
index 0000000..2cf86f6
--- /dev/null
+++ b/Checkpoint/arith_post_dec_int.dat
@@ -0,0 +1,3 @@
+funct: arith
+gin: x, int, 10
+gin: y, int, 3
diff --git a/Checkpoint/arith_post_dec_int.glsl b/Checkpoint/arith_post_dec_int.glsl
new file mode 100755
index 0000000..edb98cd
--- /dev/null
+++ b/Checkpoint/arith_post_dec_int.glsl
@@ -0,0 +1,8 @@
+int x;
+int y;
+
+int arith()
+{
+  x--;
+  return x--;
+}
diff --git a/Checkpoint/arith_post_dec_int.out b/Checkpoint/arith_post_dec_int.out
new file mode 100755
index 0000000..ee120b0
--- /dev/null
+++ b/Checkpoint/arith_post_dec_int.out
@@ -0,0 +1 @@
+Result: 9
diff --git a/Checkpoint/arith_pre_inc_int.dat b/Checkpoint/arith_pre_inc_int.dat
new file mode 100755
index 0000000..2cf86f6
--- /dev/null
+++ b/Checkpoint/arith_pre_inc_int.dat
@@ -0,0 +1,3 @@
+funct: arith
+gin: x, int, 10
+gin: y, int, 3
diff --git a/Checkpoint/arith_pre_inc_int.glsl b/Checkpoint/arith_pre_inc_int.glsl
new file mode 100755
index 0000000..4db32b7
--- /dev/null
+++ b/Checkpoint/arith_pre_inc_int.glsl
@@ -0,0 +1,8 @@
+int x;
+int y;
+
+int arith()
+{
+  ++x;
+  return ++x;
+}
diff --git a/Checkpoint/arith_pre_inc_int.out b/Checkpoint/arith_pre_inc_int.out
new file mode 100755
index 0000000..a0b6728
--- /dev/null
+++ b/Checkpoint/arith_pre_inc_int.out
@@ -0,0 +1 @@
+Result: 12
diff --git a/Checkpoint/for_loop.dat b/Checkpoint/for_loop.dat
new file mode 100755
index 0000000..9e96dea
--- /dev/null
+++ b/Checkpoint/for_loop.dat
@@ -0,0 +1,3 @@
+funct: fortest
+gin: a, int, 10
+gin: v, float, 1.0
diff --git a/Checkpoint/for_loop.glsl b/Checkpoint/for_loop.glsl
new file mode 100755
index 0000000..6b6277c
--- /dev/null
+++ b/Checkpoint/for_loop.glsl
@@ -0,0 +1,14 @@
+float v;
+int a;
+
+float fortest()
+{
+  int i;
+  float sum;
+
+  sum = v;
+  for ( i = 0; i < a; i += 1 )
+    sum *= 2.0;
+
+  return sum;
+}
diff --git a/Checkpoint/for_loop.out b/Checkpoint/for_loop.out
new file mode 100755
index 0000000..5030baf
--- /dev/null
+++ b/Checkpoint/for_loop.out
@@ -0,0 +1 @@
+Result: 1.024000e+03
diff --git a/Checkpoint/func_ret_bool.dat b/Checkpoint/func_ret_bool.dat
new file mode 100755
index 0000000..9182397
--- /dev/null
+++ b/Checkpoint/func_ret_bool.dat
@@ -0,0 +1 @@
+funct: foo
diff --git a/Checkpoint/func_ret_bool.glsl b/Checkpoint/func_ret_bool.glsl
new file mode 100755
index 0000000..21c0fe4
--- /dev/null
+++ b/Checkpoint/func_ret_bool.glsl
@@ -0,0 +1,4 @@
+bool foo()
+{
+  return true;
+}
diff --git a/Checkpoint/func_ret_bool.out b/Checkpoint/func_ret_bool.out
new file mode 100755
index 0000000..bbb3397
--- /dev/null
+++ b/Checkpoint/func_ret_bool.out
@@ -0,0 +1 @@
+Result: -1
diff --git a/Checkpoint/if_test.dat b/Checkpoint/if_test.dat
new file mode 100755
index 0000000..2d284ae
--- /dev/null
+++ b/Checkpoint/if_test.dat
@@ -0,0 +1,2 @@
+funct: iftest
+gin: a, float, 0.5
diff --git a/Checkpoint/if_test.glsl b/Checkpoint/if_test.glsl
new file mode 100755
index 0000000..1519309
--- /dev/null
+++ b/Checkpoint/if_test.glsl
@@ -0,0 +1,12 @@
+float a;
+
+float iftest()
+{
+  float f;
+  if ( a > 1.0 ) {
+    f = 2.0;
+  } else {
+    f = 1.0;
+  }
+  return f;
+}
diff --git a/Checkpoint/if_test.out b/Checkpoint/if_test.out
new file mode 100755
index 0000000..8a56137
--- /dev/null
+++ b/Checkpoint/if_test.out
@@ -0,0 +1 @@
+Result: 1.000000e+00
diff --git a/Checkpoint/multi_ret.dat b/Checkpoint/multi_ret.dat
new file mode 100755
index 0000000..ee2c67a
--- /dev/null
+++ b/Checkpoint/multi_ret.dat
@@ -0,0 +1,2 @@
+funct: multiret
+param: int, 2
diff --git a/Checkpoint/multi_ret.glsl b/Checkpoint/multi_ret.glsl
new file mode 100755
index 0000000..16a7956
--- /dev/null
+++ b/Checkpoint/multi_ret.glsl
@@ -0,0 +1,20 @@
+
+int multiret(int a)
+{
+  if ( a > 1 ) 
+    return 1;
+  else
+    return 0;
+}
+
+int multiret2(int a)
+{
+  int b;
+
+  if ( a > 1 ) 
+    b = 1;
+  else
+    return 0;
+
+  return b;
+}
diff --git a/Checkpoint/multi_ret.out b/Checkpoint/multi_ret.out
new file mode 100755
index 0000000..5589610
--- /dev/null
+++ b/Checkpoint/multi_ret.out
@@ -0,0 +1 @@
+Result: 1
diff --git a/Checkpoint/switch_basic.dat b/Checkpoint/switch_basic.dat
new file mode 100755
index 0000000..1193087
--- /dev/null
+++ b/Checkpoint/switch_basic.dat
@@ -0,0 +1,2 @@
+funct: switchtest
+gin: a, int, 2
diff --git a/Checkpoint/switch_basic.glsl b/Checkpoint/switch_basic.glsl
new file mode 100755
index 0000000..484b815
--- /dev/null
+++ b/Checkpoint/switch_basic.glsl
@@ -0,0 +1,14 @@
+int a;
+float switchtest()
+{
+   float f;
+
+   switch( a ) {
+     case 0: f  = 0.0; break;
+     case 1: f  = 1.0; break;
+     case 2: f  = 2.0; break;
+     default: f = 3.0; break;
+   }
+
+   return f;
+}
diff --git a/Checkpoint/switch_basic.out b/Checkpoint/switch_basic.out
new file mode 100755
index 0000000..406b873
--- /dev/null
+++ b/Checkpoint/switch_basic.out
@@ -0,0 +1 @@
+Result: 2.000000e+00
diff --git a/Checkpoint/vect_assign.dat b/Checkpoint/vect_assign.dat
new file mode 100755
index 0000000..4adc6f8
--- /dev/null
+++ b/Checkpoint/vect_assign.dat
@@ -0,0 +1,2 @@
+funct: vectassign
+gin: v, vec2, 0.5, 1.5
diff --git a/Checkpoint/vect_assign.glsl b/Checkpoint/vect_assign.glsl
new file mode 100755
index 0000000..523abf6
--- /dev/null
+++ b/Checkpoint/vect_assign.glsl
@@ -0,0 +1,9 @@
+vec2 v;
+
+float vectassign()
+{
+   vec2 t;
+   t = v;
+   return t.x * t.y;
+}
+
diff --git a/Checkpoint/vect_assign.out b/Checkpoint/vect_assign.out
new file mode 100755
index 0000000..50975bc
--- /dev/null
+++ b/Checkpoint/vect_assign.out
@@ -0,0 +1 @@
+Result: 7.500000e-01
diff --git a/Checkpoint/while_loop.dat b/Checkpoint/while_loop.dat
new file mode 100755
index 0000000..6281e5c
--- /dev/null
+++ b/Checkpoint/while_loop.dat
@@ -0,0 +1,2 @@
+funct: whiletest
+gin: b, int, 101
diff --git a/Checkpoint/while_loop.glsl b/Checkpoint/while_loop.glsl
new file mode 100755
index 0000000..436c5c4
--- /dev/null
+++ b/Checkpoint/while_loop.glsl
@@ -0,0 +1,15 @@
+int b;
+int whiletest()
+{
+
+  int i;
+  int sum;
+
+  i = 0;
+  sum = 0;
+  while ( i < b ) {
+    sum = sum + i;
+    i = i + 1;
+  }
+  return sum;
+}
diff --git a/Checkpoint/while_loop.out b/Checkpoint/while_loop.out
new file mode 100755
index 0000000..a9cabb4
--- /dev/null
+++ b/Checkpoint/while_loop.out
@@ -0,0 +1 @@
+Result: 5050