Add missing test files

files/task4/IINCTest.jas

@@ -0,0 +1,19 @@
+.main
+
+.var
+hi
+there
+.end-var
+L1:
+    BIPUSH 0
+    DUP
+    ISTORE hi
+    ISTORE there
+    IINC hi 0
+    IINC hi 1
+    IINC hi 3
+    IINC there 0
+    IINC there -1
+    IINC there -3
+    HALT
+.end-main

files/task4/LoadTest1.jas

@@ -0,0 +1,12 @@
+.constant
+henk 1
+piet 2
+kees 3
+.end-constant
+
+.main
+		LDC_W henk
+		LDC_W piet
+		LDC_W kees
+    HALT
+.end-main

files/task4/LoadTest2.jas

@@ -0,0 +1,34 @@
+.constant
+henk 2
+piet 3
+kees 2
+.end-constant
+
+.main
+
+.var
+pew
+.end-var
+		BIPUSH 42
+		LDC_W henk
+		LDC_W kees
+		ISUB
+		IFEQ good
+		GOTO err
+good:	LDC_W piet
+		ISTORE pew
+		BIPUSH 0
+		ILOAD pew
+		BIPUSH 79
+		OUT
+		BIPUSH 75
+		OUT
+    HALT
+err:	BIPUSH 69
+		OUT
+		BIPUSH 82
+		OUT
+		BIPUSH 82
+		OUT
+    HALT
+.end-main

files/task4/LoadTest3.jas

@@ -0,0 +1,30 @@
+.constant
+henk 1
+piet 2
+kees 3
+.end-constant
+
+.main
+
+.var
+var1
+var2
+var3
+.end-var
+
+		BIPUSH 42
+		LDC_W henk
+		ISTORE var1
+		LDC_W piet
+		ISTORE var2
+		LDC_W kees
+		ISTORE var3
+		ILOAD var3
+		ILOAD var2
+		ILOAD var1
+		POP
+		POP
+		POP
+		BIPUSH 42
+    HALT
+.end-main

files/task4/LoadTest4.jas

@@ -0,0 +1,43 @@
+.main
+
+.var
+i
+a
+b
+c
+d
+e
+f
+g
+.end-var
+		BIPUSH 10
+		ISTORE i
+L1:		ILOAD i
+		DUP
+		BIPUSH 97
+		IADD
+		OUT
+		IFEQ END
+		BIPUSH 97
+		ISTORE a
+		BIPUSH 98
+		ISTORE b
+		BIPUSH 99
+		ISTORE c
+		BIPUSH 100
+		ISTORE d
+		ILOAD i
+		BIPUSH 1
+		ISUB
+		ISTORE i
+		GOTO L1
+END:	ILOAD d
+		ILOAD c
+		ILOAD b
+		ILOAD a
+		OUT
+		OUT
+		OUT
+		OUT
+    HALT
+.end-main