1 files changed, 0 insertions, 108 deletions
diff --git a/nuttx/libc/fixedmath/lib_b16atan2.c b/nuttx/libc/fixedmath/lib_b16atan2.c
deleted file mode 100644
index 443ab7be3..000000000
--- a/nuttx/libc/fixedmath/lib_b16atan2.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/****************************************************************************
- * libc/fixedmath/lib_b16atan2.c
- *
- *   Copyright (C) 2011 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 <fixedmath.h>
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#define B16_C1     0x00000373 /* 0.013480470 */
-#define B16_C2     0x00000eb7 /* 0.057477314 */
-#define B16_C3     0x00001f0a /* 0.121239071 */
-#define B16_C4     0x00003215 /* 0.195635925 */
-#define B16_C5     0x0000553f /* 0.332994597 */
-#define B16_C6     0x00010000 /* 0.999995630 */
-#define B16_HALFPI 0x00019220 /* 1.570796327 */
-#define B16_PI     0x00032440 /* 3.141592654 */
-
-#ifndef MAX
-#  define MAX(a,b) (a > b ? a : b)
-#endif
-
-#ifndef MIN
-#  define MIN(a,b) (a < b ? a : b)
-#endif
-
-#ifndef ABS
-#  define ABS(a)   (a < 0 ? -a : a)
-#endif
-
-/****************************************************************************
- * Global Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: b16atan2
- *
- * Description:
- *   atan2 calculates the arctangent of y/x.  (Based on a algorithm I saw
- *   posted on the internet... now I have lost the link -- sorry).
- *
- ****************************************************************************/
-
-b16_t b16atan2(b16_t y, b16_t x)
-{
-  b16_t t0;
-  b16_t t1;
-  b16_t t2;
-  b16_t t3;
-
-  t2 = ABS(x);
-  t1 = ABS(y);
-  t0 = MAX(t2, t1);
-  t1 = MIN(t2, t1);
-  t2 = ub16inv(t0);
-  t2 = b16mulb16(t1, t2);
-
-  t3 = b16mulb16(t2, t2); 
-  t0 =                   - B16_C1;
-  t0 = b16mulb16(t0, t3) + B16_C2;
-  t0 = b16mulb16(t0, t3) - B16_C3;
-  t0 = b16mulb16(t0, t3) + B16_C4;
-  t0 = b16mulb16(t0, t3) - B16_C5;
-  t0 = b16mulb16(t0, t3) + B16_C6;
-  t2 = b16mulb16(t0, t2);
-
-  t2 = (ABS(y) > ABS(x)) ? B16_HALFPI - t2 : t2;
-  t2 = (x < 0) ?  B16_PI - t2 : t2;
-  t2 = (y < 0) ? -t2 : t2;
-
-  return t2;
-}