1 files changed, 319 insertions, 0 deletions
diff --git a/apps/interpreters/bas/vt100.c b/apps/interpreters/bas/vt100.c
new file mode 100644
index 000000000..45bee9852
--- /dev/null
+++ b/apps/interpreters/bas/vt100.c
@@ -0,0 +1,319 @@
+/****************************************************************************
+ * apps/interpreters/bas/vt100.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/stat.h>
+#include <stdio.h>
+
+#include <nuttx/vt100.h>
+
+#include "fs.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/* VT100 escape sequences */
+
+#if 0 /* Not used */
+static const char g_cursoron[]      = VT100_CURSORON;
+static const char g_cursoroff[]     = VT100_CURSOROFF;
+static const char g_cursorhome[]    = VT100_CURSORHOME;
+static const char g_erasetoeol[]    = VT100_CLEAREOL;
+#endif
+static const char g_clrscreen[]     = VT100_CLEARSCREEN;
+#if 0 /* Not used */
+static const char g_index[]         = VT100_INDEX;
+static const char g_revindex[]      = VT100_REVINDEX;
+static const char g_attriboff[]     = VT100_MODESOFF;
+static const char g_boldon[]        = VT100_BOLD;
+static const char g_reverseon[]     = VT100_REVERSE;
+static const char g_blinkon[]       = VT100_BLINK;
+static const char g_boldoff[]       = VT100_BOLDOFF;
+static const char g_reverseoff[]    = VT100_REVERSEOFF;
+static const char g_blinkoff[]      = VT100_BLINKOFF;
+#endif
+
+static const char g_fmtcursorpos[]  = VT100_FMT_CURSORPOS;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: vt100_write
+ *
+ * Description:
+ *   Write a sequence of bytes to the channel device
+ *
+ ****************************************************************************/
+
+static void vt100_write(int chn, FAR const char *buffer, size_t buflen)
+{
+  for (; buflen > 0; buflen--)
+    {
+      FS_putChar(chn, *buffer++);
+    }
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: vt100_blinkon
+ *
+ * Description:
+ *   Enable the blinking attribute at the current cursor location
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_blinkon(int chn)
+{
+  /* Send the VT100 BLINKON command */
+
+  vt100_write(chn, g_blinkon, sizeof(g_blinkon));
+}
+#endif
+
+/****************************************************************************
+ * Name: vt100_boldon
+ *
+ * Description:
+ *   Enable the blinking attribute at the current cursor location
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_boldon(int chn)
+{
+  /* Send the VT100 BOLDON command */
+
+  vt100_write(chn, g_boldon, sizeof(g_boldon));
+}
+#endif
+
+/****************************************************************************
+ * Name: vt100_reverseon
+ *
+ * Description:
+ *   Enable the blinking attribute at the current cursor location
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_reverseon(int chn)
+{
+  /* Send the VT100 REVERSON command */
+
+  vt100_write(chn, g_reverseon, sizeof(g_reverseon));
+}
+#endif
+
+/****************************************************************************
+ * Name:
+ *
+ * Description:
+ *   Disable all previously selected attributes.
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_attriboff(int chn)
+{
+  /* Send the VT100 ATTRIBOFF command */
+
+  vt100_write(chn, g_attriboff, sizeof(g_attriboff));
+}
+#endif
+
+/****************************************************************************
+ * Name: vt100_cursoron
+ *
+ * Description:
+ *   Turn on the cursor
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_cursoron(int chn)
+{
+  /* Send the VT100 CURSORON command */
+
+  vt100_write(chn, g_cursoron, sizeof(g_cursoron));
+}
+#endif
+
+/****************************************************************************
+ * Name: vt100_cursoroff
+ *
+ * Description:
+ *   Turn off the cursor
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_cursoroff(int chn)
+{
+  /* Send the VT100 CURSOROFF command */
+
+  vt100_write(chn, g_cursoroff, sizeof(g_cursoroff));
+}
+#endif
+
+/****************************************************************************
+ * Name: vt100_cursorhome
+ *
+ * Description:
+ *   Move the current cursor to the upper left hand corner of the display
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_cursorhome(int chn)
+{
+  /* Send the VT100 CURSORHOME command */
+
+  vt100_write(chn, g_cursorhome, sizeof(g_cursorhome));
+}
+#endif
+
+/****************************************************************************
+ * Name: vt100_setcursor
+ *
+ * Description:
+ *   Move the current cursor position to position (row,col)
+ *
+ ****************************************************************************/
+
+void vt100_setcursor(int chn, uint16_t row, uint16_t column)
+{
+  char buffer[16];
+  int len;
+
+  /* Format the cursor position command.  The origin is (1,1). */
+
+  len = snprintf(buffer, 16, g_fmtcursorpos, row + 1, column + 1);
+
+  /* Send the VT100 CURSORPOS command */
+
+  vt100_write(chn, buffer, len);
+}
+
+/****************************************************************************
+ * Name: vt100_clrtoeol
+ *
+ * Description:
+ *   Clear the display from the current cursor position to the end of the
+ *   current line.
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_clrtoeol(int chn)
+{
+  /* Send the VT100 ERASETOEOL command */
+
+  vt100_write(chn, g_erasetoeol, sizeof(g_erasetoeol));
+}
+#endif
+
+/****************************************************************************
+ * Name: vt100_clrscreen
+ *
+ * Description:
+ *   Clear the entire display
+ *
+ ****************************************************************************/
+
+void vt100_clrscreen(int chn)
+{
+  /* Send the VT100 CLRSCREEN command */
+
+  vt100_write(chn, g_clrscreen, sizeof(g_clrscreen));
+}
+
+/****************************************************************************
+ * Name: vt100_scrollup
+ *
+ * Description:
+ *   Scroll the display up 'nlines' by sending the VT100 INDEX command.
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_scrollup(int chn, uint16_t nlines)
+{
+  /* Scroll for the specified number of lines */
+
+  for (; nlines; nlines--)
+    {
+      /* Send the VT100 INDEX command */
+
+      vt100_write(chn, g_index, sizeof(g_index));
+    }
+}
+#endif
+
+/****************************************************************************
+ * Name: vt100_scrolldown
+ *
+ * Description:
+ *   Scroll the display down 'nlines' by sending the VT100 REVINDEX command.
+ *
+ ****************************************************************************/
+
+#if 0 /* Not used */
+void vt100_scrolldown(int chn, uint16_t nlines)
+{
+  /* Scroll for the specified number of lines */
+
+  for (; nlines; nlines--)
+    {
+      /* Send the VT100 REVINDEX command */
+
+      vt100_write(chn, g_revindex, sizeof(g_revindex));
+    }
+#endif