diff lwbasic/emit.c @ 26:26aa76da75ad

Additional parsing in function/sub; emission of prolog/epilog code
author lost@l-w.ca
date Thu, 27 Jan 2011 20:44:57 -0700
parents
children 77626fc37af2
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwbasic/emit.c	Thu Jan 27 20:44:57 2011 -0700
@@ -0,0 +1,47 @@
+/*
+emit.c
+
+Copyright © 2011 William Astle
+
+This file is part of LWTOOLS.
+
+LWTOOLS is free software: you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+This is the actual compiler bit; it drives the parser and code generation
+*/
+
+#include <stdio.h>
+
+#define __emit_c_seen__
+#include "lwbasic.h"
+
+void emit_prolog(cstate *state, int vis, int framesize)
+{
+	if (vis)
+	{
+		printf("\texport _%s\n", state -> currentsub);
+	}
+	printf("_%s\n", state -> currentsub);
+	if (framesize > 0)
+	{
+		printf("\tleas %d,s\n", -framesize);
+	}
+}
+
+void emit_epilog(cstate *state)
+{
+	printf("\trts\n");
+}