Rename mypc.c -> main.c

1 files changed, 140 insertions, 0 deletions

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..3d1401c
--- /dev/null
+++ b/main.c
@@ -0,0 +1,140 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include "y.tab.h"
+#include "pc.h"
+
+extern char *yytext;
+extern int line_num;
+
+char* pretty_type(t)
+int t;
+{
+	if (t == ARRAY) {
+		return "ARRAY";
+	} else if (t == INT - ARRAY) {
+		return "ARRAY of INT";
+	} else if (t == INT - ARRAY) {
+		return "ARRAY of INT";
+	} else if (t == INT) {
+		return "INT";
+	} else if (t == REAL) {
+		return "REAL";
+	} else if (t == BOOL) {
+		return "BOOL";
+	} else if (t == -1) {
+		return "NO TYPE";
+	} else {
+		return "Unknown type";
+	}
+}
+
+void debug_print(d, y)
+int d;
+union YYSTYPE* y;
+{
+#ifdef DEBUG
+	if (d == PROG){
+		fprintf(stderr, "[PROG]");
+	} else if (d == VAR){
+		fprintf(stderr, "[VAR]");
+	} else if (d == PROC){
+		fprintf(stderr, "[PROC]");
+	} else if (d == FUNC){
+		fprintf(stderr, "[FUNC]");
+	} else if (d == BEG){
+		fprintf(stderr, "[BEG]");
+	} else if (d == END){
+		fprintf(stderr, "[END]");
+	} else if (d == ARRAY){
+		fprintf(stderr, "[ARRAY]");
+	} else if (d == OF){
+		fprintf(stderr, "[OF]");
+	} else if (d == INT){
+		fprintf(stderr, "[INT]");
+	} else if (d == REAL){
+		fprintf(stderr, "[REAL]");
+	} else if (d == IF){
+		fprintf(stderr, "[IF]");
+	} else if (d == THEN){
+		fprintf(stderr, "[THEN]");
+	} else if (d == ELSE){
+		fprintf(stderr, "[ELSE]");
+	} else if (d == WHILE){
+		fprintf(stderr, "[WHILE]");
+	} else if (d == DO){
+		fprintf(stderr, "[DO]");
+	} else if (d == FOR){
+		fprintf(stderr, "[FOR]");
+	} else if (d == TO){
+		fprintf(stderr, "[TO]");
+	} else if (d == DT){
+		fprintf(stderr, "[DOWNTO]");
+	} else if (d == NOT){
+		fprintf(stderr, "[NOT]");
+	} else if (d == DOTS){
+		fprintf(stderr, "[ .. ]");
+	} else if (d == ASSIGNOP){
+		fprintf(stderr, "[ASSIGN]");
+	} else if (d == RELOP){
+		fprintf(stderr, "[RELOP:");
+		if (y->opval == EQ){
+			fprintf(stderr, "EQ");
+		} else if (y->opval == NE){
+			fprintf(stderr, "NE");
+		} else if (y->opval == LT){
+			fprintf(stderr, "LT");
+		} else if (y->opval == LE){
+			fprintf(stderr, "LE");
+		} else if (y->opval == GT){
+			fprintf(stderr, "GT");
+		} else if (y->opval == GE){
+			fprintf(stderr, "GE");
+		} else if (y->opval == ADD){
+			fprintf(stderr, "ADD");
+		} else if (y->opval == SUB){
+			fprintf(stderr, "SUB");
+		} else if (y->opval == OR){
+			fprintf(stderr, "OR");
+		} else if (y->opval == MUL){
+			fprintf(stderr, "MUL");
+		} else if (y->opval == DIV){
+			fprintf(stderr, "DIV");
+		} else if (y->opval == AND){
+			fprintf(stderr, "AND");
+		}
+		fprintf(stderr,"]");
+	} else if (d == INUM) {
+		fprintf(stderr, "[INUM: %d]", y->ival);
+	} else if (d == RNUM) {
+		fprintf(stderr, "[INUM: %f]", y->rval);
+	} else if (d == ID) {
+		fprintf(stderr, "[ID: %s]", y->sval);
+	} else if (d == '\n') {
+		fprintf(stderr, "\n");
+	} else {
+		fprintf(stderr, "{%c}", d);
+	}
+	fprintf(stderr, " ");
+#endif
+	return;
+}
+
+int yyerror(msg)
+char* msg;
+{
+	fprintf(stderr, "\nError, line %d: %s\n", line_num, msg);
+#ifdef DEBUG
+	fprintf(stderr, "%s\n", yytext);
+	exit(1);
+#endif
+	return 0;
+}
+
+int main()
+{
+	yyparse();
+
+	return 0;
+}