1 files changed, 120 insertions, 0 deletions
diff --git a/engines/glk/frotz/processor_table.cpp b/engines/glk/frotz/processor_table.cpp
new file mode 100644
index 0000000000..bb163899af
--- /dev/null
+++ b/engines/glk/frotz/processor_table.cpp
@@ -0,0 +1,120 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "glk/frotz/processor.h"
+
+namespace Gargoyle {
+namespace Frotz {
+
+void Processor::z_copy_table() {
+    zword addr;
+    zword size = zargs[2];
+    zbyte value;
+    int i;
+
+    if (zargs[1] == 0)      				/* zero table */
+
+	for (i = 0; i < size; i++)
+	    storeb((zword) (zargs[0] + i), 0);
+
+    else if ((short) size < 0 || zargs[0] > zargs[1])	/* copy forwards */
+
+	for (i = 0; i < (((short) size < 0) ? - (short) size : size); i++) {
+	    addr = zargs[0] + i;
+		LOW_BYTE(addr, value);
+	    storeb((zword) (zargs[1] + i), value);
+	} else {
+		// copy backwards
+		for (i = size - 1; i >= 0; i--) {
+			addr = zargs[0] + i;
+			LOW_BYTE(addr, value);
+			storeb((zword) (zargs[1] + i), value);
+		}
+	}
+}
+
+void Processor::z_loadb() {
+    zword addr = zargs[0] + zargs[1];
+    zbyte value;
+
+	LOW_BYTE(addr, value);
+
+    store(value);
+}
+
+void Processor::z_loadw() {
+    zword addr = zargs[0] + 2 * zargs[1];
+    zword value;
+
+	LOW_WORD(addr, value);
+
+    store(value);
+}
+
+void Processor::z_scan_table() {
+    zword addr = zargs[1];
+    int i;
+
+    // Supply default arguments
+    if (zargc < 4)
+	zargs[3] = 0x82;
+
+    // Scan byte or word array
+    for (i = 0; i < zargs[2]; i++) {
+		if (zargs[3] & 0x80) {
+			// scan word array
+			zword wvalue;
+
+			LOW_WORD(addr, wvalue);
+
+			if (wvalue == zargs[0])
+				goto finished;
+		} else {
+			// scan byte array
+			zbyte bvalue;
+
+			LOW_BYTE(addr, bvalue);
+
+			if (bvalue == zargs[0])
+				goto finished;
+		}
+
+		addr += zargs[3] & 0x7f;
+    }
+
+    addr = 0;
+
+finished:
+    store(addr);
+    branch(addr);
+}
+
+void Processor::z_storeb() {
+    storeb((zword) (zargs[0] + zargs[1]), zargs[2]);
+}
+
+void Processor::z_storew() {
+    storew((zword)(zargs[0] + 2 * zargs[1]), zargs[2]);
+}
+
+} // End of namespace Scott
+} // End of namespace Gargoyle