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Diffstat (limited to 'nuttx/include/fixedmath.h')
| -rw-r--r-- | nuttx/include/fixedmath.h | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/nuttx/include/fixedmath.h b/nuttx/include/fixedmath.h deleted file mode 100644 index 4456361c7..000000000 --- a/nuttx/include/fixedmath.h +++ /dev/null @@ -1,226 +0,0 @@ -/**************************************************************************** - * include/fixedmath.h - * - * Copyright (C) 2008 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. - * - ****************************************************************************/ - -#ifndef __INCLUDE_FIXEDMATH_H -#define __INCLUDE_FIXEDMATH_H - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <stdint.h> - -/************************************************************************** - * Definitions - **************************************************************************/ - -/* Common numbers */ - -#define b8HUNDRED 0x6400 /* 100 */ -#define b8TEN 0x0a00 /* 10 */ -#define b8ONE 0x0100 /* 1 */ -#define b8HALF 0x0080 /* 0.5 */ -#define b8ONETENTH 0x001a /* 0.1 (acutally 0.1015625) */ -#define b8ONEHUNDRTH 0x0003 /* 0.01 (actualy 0.0117198765) */ -#define b8HALFPI 0x0192 /* 1.5703125 */ -#define b8PI 0x0324 /* 3.1406250 */ -#define b8TWOPI 0x0648 /* 6.2812500 */ - -#define b8MAX 0x7fff /* Max value of b8_t */ -#define ub8MAX 0xffff /* Max value of rb8_t */ -#define b8MIN 0x8000 /* Min value of b8_t */ -#define ub8MIN 0x0000 /* Min value of ub8_t */ - -#define b16THOUSAND 0x03e80000 /* 1000 */ -#define b16HUNDRED 0x00640000 /* 100 */ -#define b16TEN 0x000a0000 /* 10 */ -#define b16ONE 0x00010000 /* 1 */ -#define b16HALF 0x00008000 /* 0.5 */ -#define b16ONETENTH 0x0000199a /* 0.1 (actually 0.100006..) */ -#define b16ONEHUNDRTH 0x0000028f /* 0.01 (actually 0.0099945..) */ -#define b16ONETHOUSTH 0x00000042 /* 0.001 (actually 0.000100708..)*/ -#define b16HALFPI 0x0001921f /* 1.57078552246 */ -#define b16PI 0x0003243f /* 3.14158630371 */ -#define b16TWOPI 0x0006487b /* 6.28312683105 */ - -#define b16MAX 0x7fffffff /* Max value of b16_t */ -#define ub16MAX 0xffffffff /* Max value of ub16_t */ -#define b16MIN 0x80000000 /* Min value of b16_t */ -#define ub16MIN 0x00000000 /* Min value of ub16_t */ - -#define b32MILLION 0x000f424000000000 /* 1000000 */ -#define b32THOUSAND 0x000003e800000000 /* 1000 */ -#define b32HUNDRED 0x0000006400000000 /* 100 */ -#define b32TEN 0x0000000a00000000 /* 10 */ -#define b32ONE 0x0000000100000000 /* 1 */ -#define b32HALF 0x0000000080000000 /* 0.5 */ -#define b32ONETENTH 0x000000001999999a /* 0.1 */ -#define b32ONEHUNDRTH 0x00000000028f5c29 /* 0.01 */ -#define b32ONETHOUSTH 0x0000000000418937 /* 0.001 */ -#define b32ONETENTHOU 0x0000000000068db9 /* 0.0001 */ -#define b32HALFPI 0x00000001921eb9ff /* 1.57078134990 */ -#define b32PI 0x00000003243f6b4f /* 3.14159269980 */ -#define b32TWOPI 0x00000006487ae7fd /* 6.28312539984 */ - -#define b32MAX 0x7fffffffffffffff /* Max value of b16_t */ -#define ub32MAX 0xffffffffffffffff /* Max value of ub16_t */ -#define b32MIN 0x8000000000000000 /* Min value of b16_t */ -#define ub32MIN 0x0000000000000000 /* Min value of ub16_t */ - -/* Conversions between b16 and b8 *****************************************/ - -#define b8tob16(b) (((b16_t)(b)) << 8) -#define ub8toub16(b) (((ub16_t)(b)) << 8) -#define b16tob8(b) (b8_t)(((b)+0x0080)>>8) -#define ub16toub8(b) (ub8_t)(((b)+0x0080)>>8) - -#ifdef CONFIG_HAVE_LONG_LONG -# define b8tob32(b) (((b32_t)(b)) << 24) -# define ub8toub32(b) (((ub32_t)(b)) << 24) -# define b16tob32(b) (((b32_t)(b)) << 16) -# define ub16toub32(b) (((ub32_t)(b)) << 16) -# define b32tob16(b) (b16_t)(((b) + 0x0000000000008000)>>16) -# define ub32toub16(b) (ub16_t)(((b) + 0x0000000000008000)>>16) -# define b32tob8(b) (b8_t)(((b) + 0x0000000000000080)>>8) -#endif - -/* 16-bit values with 8 bits of precision *********************************/ - -/* Conversions */ - -#define b8toi(a) ((a) >> 8) /* Conversion to integer */ -#define itob8(i) (((b8_t)(i)) << 8) /* Conversion from integer */ -#define uitoub8(i) (((ub8_t)(i)) << 8) /* Conversion from unsigned integer */ -#define b8tof(b) (((float)b)/256.0) /* Conversion to float */ -#define ftob8(f) (b8_t)(((f)*256.0)) /* Conversion from float */ -#define b8trunc(a) ((a) & 0xff00) /* Truncate to integer b8 */ -#define b8round(a) (((a)+0x0080) & 0xff00) /* Round to integer b8 */ -#define b8frac(a) ((a) & 0x00ff) /* Take fractional part */ - -/* Operators */ - -#define ub8inv(b) (0x8000/((b)>>1)) /* Inversion (b8=b15/b7) */ -#define b8inv(b) (0x4000/((b)>>2)) /* Inversion (b8=b14/b6) */ -#define b8addb8(a,b) ((a)+(b)) /* Addition */ -#define b8addi(a,i) ((a)+itob8(i)) /* Add integer from b16 */ -#define b8subb8(a,b) ((a)-(b)) /* Subtraction */ -#define b8subi(a,i) ((a)-itob8(i)) /* Subtract integer from b8 */ -#define b8mulb8(a,b) b16tob8((b16_t)(a)*(b16_t)(b) /* Muliplication */ -#define ub8mulub8(a,b) ub16toub8((ub16_t)(a)*(ub16_t)(b) /* Muliplication */ -#define b8muli(a,i) ((a)*(i)) /* Simple multiplication by integer */ -#define b8sqr(a) b8mulb8(a,a) /* Square */ -#define ub8sqr(a) ub8mulub8(a,a) /* Square */ -#define b8divb8(a,b) b8tob16(a)/(b16_t)(b) /* Division */ -#define ub8divub8(a,b) ub8toub16(a)/(ub16_t)(b) /* Division */ -#define b8divi(a,i) ((a)/(i)) /* Simple division by integer */ -#define b8idiv(i,j) (((i)<<8)/j) /* Division of integer, b8 result */ - -/* 32-bit values with 16 bits of precision ********************************/ - -/* Conversions */ - -#define b16toi(a) ((a) >> 16) /* Conversion to integer */ -#define itob16(i) (((b16_t)(i)) << 16) /* Conversion from integer */ -#define uitoub16(i) (((ub16_t)(i)) << 16) /* Conversion from unsigned integer */ -#define b16tof(b) (((float)b)/65536.0) /* Conversion to float */ -#define ftob16(f) (b16_t)(((f)*65536.0)) /* Conversion from float */ -#define b16trunc(a) ((a) & 0xffff0000) /* Truncate to integer */ -#define b16round(a) (((a)+0x00008000) & 0xffff0000) -#define b16frac(a) ((a) & 0x0000ffff) /* Take fractional part */ - -/* Operators */ - -#define ub16inv(b) (0x80000000/((b)>>1)) /* Inversion (b16=b31/b15) */ -#define b16inv(b) (0x40000000/((b)>>2)) /* Inversion (b16=b30/b14) */ -#define b16addb16(a,b) ((a)+(b)) /* Addition */ -#define b16addi(a,i) ((a)+itob16(i)) /* Add integer to b16 */ -#define b16subb16(a,b) ((a)-(b)) /* Subtraction */ -#define b16subi(a,i) ((a)-itob16(i)) /* Subtract integer from b16 */ -#define b16muli(a,i) ((a)*(i)) /* Simple multiplication by integer */ -#define b16divi(a,i) ((a)/(i)) /* Simple division by integer*/ -#define b16idiv(i,j) (((i)<<16)/j) /* Division of integer, b16 result */ - -#ifdef CONFIG_HAVE_LONG_LONG -# define b16mulb16(a,b) b32tob16((b32_t)(a)*(b32_t)(b)) /* Muliplication */ -# define ub16mulub16(a,b) ub32toub16((ub32_t)(a)*(ub32_t)(b) -# define b16sqr(a) b16mulb16(a,a) /* Square */ -# define ub16sqr(a) ub16mulub16(a,a) /* Square */ -# define b16divb16(a,b) b16tob32(a)/(b32_t)(b) /* Division */ -# define ub16divub16(a,b) ub16toub32(a)/(ub32_t)(b) -#endif - -/************************************************************************** - * Public Types - **************************************************************************/ - -typedef int16_t b8_t; -typedef uint16_t ub8_t; -typedef int32_t b16_t; -typedef uint32_t ub16_t; -#ifdef CONFIG_HAVE_LONG_LONG -typedef int64_t b32_t; -typedef uint64_t ub32_t; -#endif - -/************************************************************************** - * Global Functions - **************************************************************************/ - -#undef EXTERN -#if defined(__cplusplus) -#define EXTERN extern "C" -extern "C" { -#else -#define EXTERN extern -#endif - -#ifndef CONFIG_HAVE_LONG_LONG -EXTERN b16_t b16mulb16(b16_t m1, b16_t m2); -EXTERN ub16_t ub16mulub16(ub16_t m1, ub16_t m2); -EXTERN b16_t b16sqr(b16_t a); -EXTERN ub16_t ub16sqr(ub16_t a); -EXTERN b16_t b16divb16(b16_t num, b16_t denom); -EXTERN ub16_t ub16divub16(ub16_t num, ub16_t denom); -#endif - -EXTERN b16_t b16sin(b16_t rad); -EXTERN b16_t b16cos(b16_t rad); -EXTERN b16_t b16atan2(b16_t y, b16_t x); - -#undef EXTERN -#if defined(__cplusplus) -} -#endif -#endif /* __INCLUDE_FIXEDMATH_H */ |