--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwasm/insn_rlist.c	Wed Jan 19 22:27:17 2011 -0700
@@ -0,0 +1,64 @@
+/*
+insn_rlist.c
+Copyright © 2009 William Astle
+
+This file is part of LWASM.
+
+LWASM 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/>.
+*/
+
+/*
+for handling inherent mode instructions
+*/
+
+#include "lwasm.h"
+#include "instab.h"
+
+PARSEFUNC(insn_parse_rlist)
+{
+	int rb = 0;
+	int rn;
+	static const char *regs = "CCA B DPX Y U PCD S ";
+
+	while (**p && !isspace(**p))
+	{
+		rn = lwasm_lookupreg2(regs, p);
+		if (rn < 0)
+		{
+			lwasm_register_error(as, l, "Bad register '%s'", *p);
+			return;
+		}
+		if (**p && **p != ',' && !isspace(**p))
+		{
+			lwasm_register_error(as, l, "Bad operand");
+		}
+		if (**p == ',')
+			(*p)++;
+		if (rn == 8)
+			rn = 6;
+		else if (rn == 9)
+			rn = 0x40;
+		else
+			rn = 1 << rn;
+		rb |= rn;
+	}
+	l -> len = OPLEN(instab[l -> insn].ops[0]) + 1;
+	l -> pb = rb;
+}
+
+EMITFUNC(insn_emit_rlist)
+{
+	lwasm_emitop(l, instab[l -> insn].ops[0]);
+	lwasm_emit(l, l -> pb);
+}