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diff --git a/lib/rbcodec/codecs/libspeex/lsp_bfin.h b/lib/rbcodec/codecs/libspeex/lsp_bfin.h
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+/* Copyright (C) 2006 David Rowe */
+/**
+ @file lsp_bfin.h
+ @author David Rowe
+ @brief LSP routines optimised for the Blackfin
+*/
+/*
+ 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.
+*/
+
+#define OVERRIDE_CHEB_POLY_EVA
+#ifdef OVERRIDE_CHEB_POLY_EVA
+static inline spx_word32_t cheb_poly_eva(
+ spx_word16_t *coef, /* P or Q coefs in Q13 format */
+ spx_word16_t x, /* cos of freq (-1.0 to 1.0) in Q14 format */
+ int m, /* LPC order/2 */
+ char *stack
+)
+{
+ spx_word32_t sum;
+
+ __asm__ __volatile__
+ (
+ "P0 = %2;\n\t" /* P0: coef[m], coef[m-1],..., coef[0] */
+ "R4 = 8192;\n\t" /* R4: rounding constant */
+ "R2 = %1;\n\t" /* R2: x */
+
+ "R5 = -16383;\n\t"
+ "R2 = MAX(R2,R5);\n\t"
+ "R5 = 16383;\n\t"
+ "R2 = MIN(R2,R5);\n\t"
+
+ "R3 = W[P0--] (X);\n\t" /* R3: sum */
+ "R5 = W[P0--] (X);\n\t"
+ "R5 = R5.L * R2.L (IS);\n\t"
+ "R5 = R5 + R4;\n\t"
+ "R5 >>>= 14;\n\t"
+ "R3 = R3 + R5;\n\t"
+
+ "R0 = R2;\n\t" /* R0: b0 */
+ "R1 = 16384;\n\t" /* R1: b1 */
+ "LOOP cpe%= LC0 = %3;\n\t"
+ "LOOP_BEGIN cpe%=;\n\t"
+ "P1 = R0;\n\t"
+ "R0 = R2.L * R0.L (IS) || R5 = W[P0--] (X);\n\t"
+ "R0 >>>= 13;\n\t"
+ "R0 = R0 - R1;\n\t"
+ "R1 = P1;\n\t"
+ "R5 = R5.L * R0.L (IS);\n\t"
+ "R5 = R5 + R4;\n\t"
+ "R5 >>>= 14;\n\t"
+ "R3 = R3 + R5;\n\t"
+ "LOOP_END cpe%=;\n\t"
+ "%0 = R3;\n\t"
+ : "=&d" (sum)
+ : "a" (x), "a" (&coef[m]), "a" (m-1)
+ : "R0", "R1", "R3", "R2", "R4", "R5", "P0", "P1"
+ );
+ return sum;
+}
+#endif
+
+
+