Added runtime checks and started fixing test code

runtime/main.cpp

@@ -4,6 +4,7 @@
 **  by Samuel D. Crow
 */
 #include "runtime.h"
+#include <cstdio>
 
 subroutine *callStack=nullptr;
 
@@ -26,9 +27,18 @@ unsigned int subroutine::close()
 int main(int argc, char *argv[])
 {
 	unsigned int ret=run();
-	if (ret!=EXIT)
-	{
+	switch (ret) {
+		case STACK_UNDERFLOW_ERROR:
+			puts("Stack Underflow\n");
+			break;
+		case UNDEFINED_STATE_ERROR:
+			puts("Program encountered an undefined state\n");
+			break;
+		case EXIT:
+			return 0;
+		default:
+			puts("Illegal fallthrough encountered\n");
+			break;
+	}
 	return 1;
 }
-	return 0;
-}

yabFunctions.cpp

@@ -75,8 +75,7 @@ void fn::addParameter(string &name, enum TYPES t)
 /* TODO needs to be broken into smaller pieces */
 operands *fn::generateCall(string &name, list<operands *>&paramList)
 {
-	static unsigned int callID;
-	unsigned int callEnumerator;
+	static unsigned int callEnumerator;
 	auto v=params.begin();
 	operands *current;
 	label *retAddr=new label();
@@ -90,10 +89,10 @@ operands *fn::generateCall(string &name, list<operands *>&paramList)
 		error(E_TOO_MANY_PARAMETERS);
 	}
 	/* TODO CHECK THIS */
-	callEnumerator = ++callID; 
+	++callEnumerator;
 	heap_h << "struct f" << g->getID()
 		<< " *sub" << callEnumerator << ";\n";
-	output_cpp << " sub" << this->getID()
+	output_cpp << " sub" << callEnumerator
 		<< "= new f" << g->getID()
 		<< "(" << retAddr->getID() << ");\n"
 		<< "callStack = sub" << callEnumerator << ";\n";