Adding var declaration and set statement handling

prog/Makefile

@@ -0,0 +1,11 @@
+gcc: gcca main-gcc.asm
+	gcc -o main-gcc.o main-gcc.asm
+gcca: main.c
+	gcc -S -o main-gcc.asm main.c
+
+ifcc: ifcca main-ifcc.asm
+	gcc -o main-ifcc.o main-ifcc.asm
+ifcca: main.c comp-ifcc
+	../compiler/ifcc main.c > main-ifcc.asm
+comp-ifcc:
+	cd ../compiler && make

prog/main.c

@@ -0,0 +1,5 @@
+int main() {
+    int x;
+    x=42;
+    return x;
+}