dspf_fltoq15.h

来自「详细的OFDM设计过程」· C头文件 代码 · 共 44 行

/* ======================================================================== */
/*  TEXAS INSTRUMENTS, INC.                                                 */
/*                                                                          */
/*  NAME                                                                    */
/*      DSPF_fltoq15 -- IEEE Single Precision floating point to Q15 format  */
/*                                                                          */
/*  USAGE                                                                   */
/*     This routine is C-callable and can be called as:                     */
/*                                                                          */
/*     void DSPF_fltoq15                                                    */
/*     (                                                                    */
/*         const float* restrict x,                                         */
/*         short*       restrict r,                                         */
/*         int         nx                                                   */
/*     );                                                                   */
/*                                                                          */
/*     x[nx] :  Input array contaning values of type float                  */
/*     r[nx] :  Output array contains Q15 equivalents of x[nx]              */
/*     nx    :  Number of elements in both arrays                           */
/*                                                                          */
/*  DESCRIPTION                                                             */
/*     Convert the IEEE floating point numbers stored in vector x[] into    */
/*     Q.15 format numbers stored in vector r[]. Results will be rounded    */
/*     towards negative infinity. All values that exceed the size limit     */
/*     will be saturated to 0x7fff if value is positive and 0x8000 if       */
/*     value is negative.                                                   */
/*                                                                          */
/* ------------------------------------------------------------------------ */
/*            Copyright (c) 2003 Texas Instruments, Incorporated.           */
/*                           All Rights Reserved.                           */
/* ======================================================================== */
#ifndef DSPF_FLTOQ15_
#define DSPF_FLTOQ15_ 1

void DSPF_fltoq15(const float * x, short * restrict r, int nx);

#endif
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/*  End of file: dspf_fltoq15.h                                             */
/* ------------------------------------------------------------------------ */
/*          Copyright (C) 2003 Texas Instruments, Incorporated.             */
/*                          All Rights Reserved.                            */
/* ======================================================================== */