--- /dev/null
+/******************************************************************************
+*
+* Copyright (C) 2009 - 2015 Xilinx, Inc. All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* Use of the Software is limited solely to applications:
+* (a) running on a Xilinx device, or
+* (b) that interact with a Xilinx device through a bus or interconnect.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+* XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* Except as contained in this notice, the name of the Xilinx shall not be used
+* in advertising or otherwise to promote the sale, use or other dealings in
+* this Software without prior written authorization from Xilinx.
+*
+******************************************************************************/
+
+/* read.c -- read bytes from a input device.
+ */
+#ifndef UNDEFINE_FILE_OPS
+#include "xil_printf.h"
+#include "xparameters.h"
+
+#ifdef __cplusplus
+extern "C" {
+ __attribute__((weak)) s32 _read (s32 fd, char8* buf, s32 nbytes);
+}
+#endif
+
+/*
+ * read -- read bytes from the serial port. Ignore fd, since
+ * we only have stdin.
+ */
+__attribute__((weak)) s32
+read (s32 fd, char8* buf, s32 nbytes)
+{
+#ifdef STDIN_BASEADDRESS
+ s32 i;
+ s32 numbytes = 0;
+ char8* LocalBuf = buf;
+
+ (void)fd;
+ if(LocalBuf != NULL) {
+ for (i = 0; i < nbytes; i++) {
+ numbytes++;
+ *(LocalBuf + i) = inbyte();
+ if ((*(LocalBuf + i) == '\n' )|| (*(LocalBuf + i) == '\r')) {
+ break;
+ }
+ }
+ }
+
+ return numbytes;
+#else
+ (void)fd;
+ (void)buf;
+ (void)nbytes;
+ return 0;
+#endif
+}
+
+__attribute__((weak)) s32
+_read (s32 fd, char8* buf, s32 nbytes)
+{
+#ifdef STDIN_BASEADDRESS
+ s32 i;
+ s32 numbytes = 0;
+ char8* LocalBuf = buf;
+
+ (void)fd;
+ if(LocalBuf != NULL) {
+ for (i = 0; i < nbytes; i++) {
+ numbytes++;
+ *(LocalBuf + i) = inbyte();
+ if ((*(LocalBuf + i) == '\n' )|| (*(LocalBuf + i) == '\r')) {
+ break;
+ }
+ }
+ }
+
+ return numbytes;
+#else
+ (void)fd;
+ (void)buf;
+ (void)nbytes;
+ return 0;
+#endif
+}
+#endif