1 files changed, 38 insertions, 0 deletions

diff --git a/apps/plugins/zxbox/z80_op4x.c b/apps/plugins/zxbox/z80_op4x.c
new file mode 100644
index 0000000000..2d966163b4
--- /dev/null
+++ b/apps/plugins/zxbox/z80_op4x.c
@@ -0,0 +1,38 @@
+/* 
+ * Copyright (C) 1996-1998 Szeredi Miklos
+ * Email: mszeredi@inf.bme.hu
+ *
+ * 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 2 of the License, or
+ * (at your option) any later version. See the file COPYING. 
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/* IX */
+
+POP_RR(ix, IX, 2)
+PUSH_RR(ix, IX, 2)
+
+JP_RR(ix, IX)
+LD_SP_RR(ix, IX)
+EX_ISP_RR(ix, IX)
+
+
+/* IY */
+
+POP_RR(iy, IY, 2)
+PUSH_RR(iy, IY, 2)
+
+JP_RR(iy, IY)
+LD_SP_RR(iy, IY)
+EX_ISP_RR(iy, IY)