Diff: DuerOS-Light-SDK-v1.1.0/duer-os-light/external/speex/libspeex/fixed_arm5e.h

Revision:

47:9e361da97763

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DuerOS-Light-SDK-v1.1.0/duer-os-light/external/speex/libspeex/fixed_arm5e.h	Tue Jul 18 16:54:45 2017 +0800
@@ -0,0 +1,178 @@
+/* Copyright (C) 2003 Jean-Marc Valin */
+/**
+   @file fixed_arm5e.h
+   @brief ARM-tuned fixed-point operations
+*/
+/*
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+   
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+   
+   - 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.
+   
+   - Neither the name of the Xiph.org Foundation 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 FOUNDATION 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 FIXED_ARM5E_H
+#define FIXED_ARM5E_H
+
+#undef MULT16_16
+static inline spx_word32_t MULT16_16(spx_word16_t x, spx_word16_t y) {
+  int res;
+  asm ("smulbb  %0,%1,%2;\n"
+              : "=&r"(res)
+              : "%r"(x),"r"(y));
+  return(res);
+}
+
+#undef MAC16_16
+static inline spx_word32_t MAC16_16(spx_word32_t a, spx_word16_t x, spx_word32_t y) {
+  int res;
+  asm ("smlabb  %0,%1,%2,%3;\n"
+              : "=&r"(res)
+               : "%r"(x),"r"(y),"r"(a));
+  return(res);
+}
+
+#undef MULT16_32_Q15
+static inline spx_word32_t MULT16_32_Q15(spx_word16_t x, spx_word32_t y) {
+  int res;
+  asm ("smulwb  %0,%1,%2;\n"
+              : "=&r"(res)
+               : "%r"(y<<1),"r"(x));
+  return(res);
+}
+
+#undef MAC16_32_Q15
+static inline spx_word32_t MAC16_32_Q15(spx_word32_t a, spx_word16_t x, spx_word32_t y) {
+  int res;
+  asm ("smlawb  %0,%1,%2,%3;\n"
+              : "=&r"(res)
+               : "%r"(y<<1),"r"(x),"r"(a));
+  return(res);
+}
+
+#undef MULT16_32_Q11
+static inline spx_word32_t MULT16_32_Q11(spx_word16_t x, spx_word32_t y) {
+  int res;
+  asm ("smulwb  %0,%1,%2;\n"
+              : "=&r"(res)
+               : "%r"(y<<5),"r"(x));
+  return(res);
+}
+
+#undef MAC16_32_Q11
+static inline spx_word32_t MAC16_32_Q11(spx_word32_t a, spx_word16_t x, spx_word32_t y) {
+  int res;
+  asm ("smlawb  %0,%1,%2,%3;\n"
+              : "=&r"(res)
+               : "%r"(y<<5),"r"(x),"r"(a));
+  return(res);
+}
+
+#undef DIV32_16
+static inline short DIV32_16(int a, int b)
+{
+   int res=0;
+   int dead1, dead2, dead3, dead4, dead5;
+   __asm__ __volatile__ (
+         "\teor %5, %0, %1\n"
+         "\tmovs %4, %0\n"
+         "\trsbmi %0, %0, #0 \n"
+         "\tmovs %4, %1\n"
+         "\trsbmi %1, %1, #0 \n"
+         "\tmov %4, #1\n"
+
+         "\tsubs %3, %0, %1, asl #14 \n"
+         "\torrpl %2, %2, %4, asl #14 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #13 \n"
+         "\torrpl %2, %2, %4, asl #13 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #12 \n"
+         "\torrpl %2, %2, %4, asl #12 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #11 \n"
+         "\torrpl %2, %2, %4, asl #11 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #10 \n"
+         "\torrpl %2, %2, %4, asl #10 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #9 \n"
+         "\torrpl %2, %2, %4, asl #9 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #8 \n"
+         "\torrpl %2, %2, %4, asl #8 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #7 \n"
+         "\torrpl %2, %2, %4, asl #7 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #6 \n"
+         "\torrpl %2, %2, %4, asl #6 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #5 \n"
+         "\torrpl %2, %2, %4, asl #5 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #4 \n"
+         "\torrpl %2, %2, %4, asl #4 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #3 \n"
+         "\torrpl %2, %2, %4, asl #3 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #2 \n"
+         "\torrpl %2, %2, %4, asl #2 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1, asl #1 \n"
+         "\torrpl %2, %2, %4, asl #1 \n"
+         "\tmovpl %0, %3 \n"
+
+         "\tsubs %3, %0, %1 \n"
+         "\torrpl %2, %2, %4 \n"
+         "\tmovpl %0, %3 \n"
+         
+         "\tmovs %5, %5, lsr #31 \n"
+         "\trsbne %2, %2, #0 \n"
+   : "=r" (dead1), "=r" (dead2), "=r" (res),
+   "=r" (dead3), "=r" (dead4), "=r" (dead5)
+   : "0" (a), "1" (b), "2" (res)
+   : "memory", "cc"
+                        );
+   return res;
+}
+
+
+
+
+#endif