Initial commit - http://sourceforge.net/p/fceumm/code/160/

src/input/bworld.c

@@ -0,0 +1,65 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2003 Xodnizel
+ *
+ * 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 <string.h>
+#include "share.h"
+
+static int seq, ptr, bit, cnt, have;
+static uint8 bdata[20];
+
+
+static uint8 FP_FASTAPASS(2) Read(int w, uint8 ret) {
+	if (w && have) {
+		switch (seq) {
+		case 0: seq++; ptr = 0; ret |= 0x4; break;
+		case 1: seq++; bit = bdata[ptr]; cnt = 0; ret |= 0x4; break;
+		case 2: ret |= ((bit & 0x01) ^ 0x01) << 2; bit >>= 1; if (++cnt > 7) seq++;
+			break;
+		case 3: if (++ptr > 19) {
+				seq = -1;
+				have = 0;
+		} else
+				seq = 1;
+		default: break;
+		}
+	}
+	return(ret);
+}
+
+static void FP_FASTAPASS(1) Write(uint8 V) {
+	//printf("%02x\n",V);
+}
+
+static void FP_FASTAPASS(2) Update(void *data, int arg) {
+	if (*(uint8*)data) {
+		*(uint8*)data = 0;
+		seq = ptr = 0;
+		have = 1;
+		strcpy(bdata, (uint8*)data + 1);
+		strcpy(&bdata[13], "SUNSOFT");
+	}
+}
+
+static INPUTCFC BarcodeWorld = { Read, Write, 0, Update, 0, 0 };
+
+INPUTCFC *FCEU_InitBarcodeWorld(void) {
+	return(&BarcodeWorld);
+}
+