--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/interps/cfunge/cfunge-src/src/interpreter.h	Sun Dec 09 19:30:08 2012 +0000
@@ -0,0 +1,80 @@
+/* -*- mode: C; coding: utf-8; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
+ *
+ * cfunge - A standard-conforming Befunge93/98/109 interpreter in C.
+ * Copyright (C) 2008-2009 Arvid Norlander <anmaster AT tele2 DOT se>
+ *
+ * This program 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 the proxy's option) any later version. Arvid Norlander is a
+ * proxy who can decide which future versions of the GNU General Public
+ * License can be used.
+ *
+ * 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/>.
+ */
+
+/**
+ * @file
+ * Header for interpreter.c (that contains the main loop and parser).
+ */
+
+#ifndef FUNGE_HAD_SRC_INTERPRETER_H
+#define FUNGE_HAD_SRC_INTERPRETER_H
+
+#include "global.h"
+
+#include <sys/types.h>
+#include <stdint.h>
+
+#include "ip.h"
+
+// Certain instructions that are also used elsewhere.
+/**
+ * Run a _ instruction.
+ * @param ip to IP to execute this instruction for.
+ */
+FUNGE_ATTR_NONNULL FUNGE_ATTR_FAST
+void if_east_west(instructionPointer * restrict ip);
+/**
+ * Run a | instruction.
+ * @param ip to IP to execute this instruction for.
+ */
+FUNGE_ATTR_NONNULL FUNGE_ATTR_FAST
+void if_north_south(instructionPointer * restrict ip);
+
+/**
+ * Run instruction. Different prototype depending on if CONCURRENT_FUNGE
+ * is defined or not.
+ * @param opcode Instruction to execute
+ * @param ip Instruction pointer to execute the instruction in.
+ * @param threadindex The thread index (only if CONCURRENT_FUNGE is defined)
+ * @returns
+ * Return value only if CONCURRENT_FUNGE is defined. If true we executed an
+ * instruction that took 0 ticks, so call me again right away (in main loop)!
+ */
+#ifdef CONCURRENT_FUNGE
+FUNGE_ATTR_NONNULL FUNGE_ATTR_FAST
+bool execute_instruction(funge_cell opcode,
+                        instructionPointer * restrict ip,
+                        ssize_t * threadindex);
+#else
+FUNGE_ATTR_NONNULL FUNGE_ATTR_FAST
+void execute_instruction(funge_cell opcode,
+                        instructionPointer * restrict ip);
+#endif
+
+/**
+ * Start interpreter on a specific filename.
+ * @warning MUST only be called from main.c
+ * @param filename Filename to operate on.
+ */
+FUNGE_ATTR_NORET FUNGE_ATTR_FAST
+void interpreter_run(const char *filename);
+
+#endif