+/*
+ * opcodes.h -- part of ZilUtils/ZilAsm
+ *
+ * Copyright (C) 2016 Jason Self <j@jxself.org>
+ *
+ * Based on ZILF (c) 2010, 2015 Jesse McGrew
+ *
+ * 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 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/>
+ */
+
+#ifndef ZILASM_OPCODES
+#define ZILASM_OPCODES 1
+
+#include "symtable.h"
+
+typedef enum {
+ Zop_none = 0,
+ Zop_store = 1, // ..stores a result
+ Zop_branch = 2, // ..branches to a label
+ Zop_extra = 4, // ..takes an extra operand type byte, for a total of 8 possible operands
+ Zop_varargs = 8, // ..is nominally 2OP but can take up to 4 operands
+ Zop_string = 16, // ..has a string literal operand
+ Zop_label = 32, // ..can take a local label operand
+ Zop_indvar = 64, // ..first operand is an indirect variable number
+ Zop_call = 128, // ..first operand is a packed routine address
+ Zop_term = 256 // ..control flow does not pass to the following instruction
+} ZOpcode_flags;
+
+typedef struct {
+ unsigned opcode;
+ ZOpcode_flags flags;
+} ZOpcode;
+
+extern Symtable *Opcodes;
+
+void init_opcodes(int version, int inform_syntax);
+
+#endif /* ifndef ZILASM_OPCODES */