1*a58d3d2aSXin Li /* Copyright (C) 2008 CSIRO */ 2*a58d3d2aSXin Li /** 3*a58d3d2aSXin Li @file fixed_c6x.h 4*a58d3d2aSXin Li @brief Fixed-point operations for the TI C6x DSP family 5*a58d3d2aSXin Li */ 6*a58d3d2aSXin Li /* 7*a58d3d2aSXin Li Redistribution and use in source and binary forms, with or without 8*a58d3d2aSXin Li modification, are permitted provided that the following conditions 9*a58d3d2aSXin Li are met: 10*a58d3d2aSXin Li 11*a58d3d2aSXin Li - Redistributions of source code must retain the above copyright 12*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer. 13*a58d3d2aSXin Li 14*a58d3d2aSXin Li - Redistributions in binary form must reproduce the above copyright 15*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer in the 16*a58d3d2aSXin Li documentation and/or other materials provided with the distribution. 17*a58d3d2aSXin Li 18*a58d3d2aSXin Li THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19*a58d3d2aSXin Li ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20*a58d3d2aSXin Li LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21*a58d3d2aSXin Li A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 22*a58d3d2aSXin Li OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 23*a58d3d2aSXin Li EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 24*a58d3d2aSXin Li PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 25*a58d3d2aSXin Li PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 26*a58d3d2aSXin Li LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 27*a58d3d2aSXin Li NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28*a58d3d2aSXin Li SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29*a58d3d2aSXin Li */ 30*a58d3d2aSXin Li 31*a58d3d2aSXin Li #ifndef FIXED_C6X_H 32*a58d3d2aSXin Li #define FIXED_C6X_H 33*a58d3d2aSXin Li 34*a58d3d2aSXin Li #undef MULT16_16SU 35*a58d3d2aSXin Li #define MULT16_16SU(a,b) _mpysu(a,b) 36*a58d3d2aSXin Li 37*a58d3d2aSXin Li #undef MULT_16_16 38*a58d3d2aSXin Li #define MULT_16_16(a,b) _mpy(a,b) 39*a58d3d2aSXin Li 40*a58d3d2aSXin Li #define celt_ilog2(x) (30 - _norm(x)) 41*a58d3d2aSXin Li #define OVERRIDE_CELT_ILOG2 42*a58d3d2aSXin Li 43*a58d3d2aSXin Li #undef MULT16_32_Q15 44*a58d3d2aSXin Li #define MULT16_32_Q15(a,b) (_mpylill(a, b) >> 15) 45*a58d3d2aSXin Li 46*a58d3d2aSXin Li #if 0 47*a58d3d2aSXin Li #include "dsplib.h" 48*a58d3d2aSXin Li 49*a58d3d2aSXin Li #undef MAX16 50*a58d3d2aSXin Li #define MAX16(a,b) _max(a,b) 51*a58d3d2aSXin Li 52*a58d3d2aSXin Li #undef MIN16 53*a58d3d2aSXin Li #define MIN16(a,b) _min(a,b) 54*a58d3d2aSXin Li 55*a58d3d2aSXin Li #undef MAX32 56*a58d3d2aSXin Li #define MAX32(a,b) _lmax(a,b) 57*a58d3d2aSXin Li 58*a58d3d2aSXin Li #undef MIN32 59*a58d3d2aSXin Li #define MIN32(a,b) _lmin(a,b) 60*a58d3d2aSXin Li 61*a58d3d2aSXin Li #undef VSHR32 62*a58d3d2aSXin Li #define VSHR32(a, shift) _lshl(a,-(shift)) 63*a58d3d2aSXin Li 64*a58d3d2aSXin Li #undef MULT16_16_Q15 65*a58d3d2aSXin Li #define MULT16_16_Q15(a,b) (_smpy(a,b)) 66*a58d3d2aSXin Li 67*a58d3d2aSXin Li #define celt_maxabs16(x, len) MAX32(EXTEND32(maxval((DATA *)x, len)),-EXTEND32(minval((DATA *)x, len))) 68*a58d3d2aSXin Li #define OVERRIDE_CELT_MAXABS16 69*a58d3d2aSXin Li 70*a58d3d2aSXin Li #endif /* FIXED_C6X_H */ 71