Chris@69: /***********************************************************************
Chris@69: Copyright (c) 2006-2011, Skype Limited. All rights reserved.
Chris@69: Copyright (c) 2013       Parrot
Chris@69: Redistribution and use in source and binary forms, with or without
Chris@69: modification, are permitted provided that the following conditions
Chris@69: are met:
Chris@69: - Redistributions of source code must retain the above copyright notice,
Chris@69: this list of conditions and the following disclaimer.
Chris@69: - Redistributions in binary form must reproduce the above copyright
Chris@69: notice, this list of conditions and the following disclaimer in the
Chris@69: documentation and/or other materials provided with the distribution.
Chris@69: - Neither the name of Internet Society, IETF or IETF Trust, nor the
Chris@69: names of specific contributors, may be used to endorse or promote
Chris@69: products derived from this software without specific prior written
Chris@69: permission.
Chris@69: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Chris@69: AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Chris@69: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
Chris@69: ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
Chris@69: LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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Chris@69: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Chris@69: INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
Chris@69: CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
Chris@69: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
Chris@69: POSSIBILITY OF SUCH DAMAGE.
Chris@69: ***********************************************************************/
Chris@69: 
Chris@69: #ifndef SILK_MACROS_ARMv5E_H
Chris@69: #define SILK_MACROS_ARMv5E_H
Chris@69: 
Chris@69: /* This macro only avoids the undefined behaviour from a left shift of
Chris@69:    a negative value. It should only be used in macros that can't include
Chris@69:    SigProc_FIX.h. In other cases, use silk_LSHIFT32(). */
Chris@69: #define SAFE_SHL(a,b) ((opus_int32)((opus_uint32)(a) << (b)))
Chris@69: 
Chris@69: /* (a32 * (opus_int32)((opus_int16)(b32))) >> 16 output have to be 32bit int */
Chris@69: #undef silk_SMULWB
Chris@69: static OPUS_INLINE opus_int32 silk_SMULWB_armv5e(opus_int32 a, opus_int16 b)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_SMULWB\n\t"
Chris@69:       "smulwb %0, %1, %2\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "r"(a), "r"(b)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_SMULWB(a, b) (silk_SMULWB_armv5e(a, b))
Chris@69: 
Chris@69: /* a32 + (b32 * (opus_int32)((opus_int16)(c32))) >> 16 output have to be 32bit int */
Chris@69: #undef silk_SMLAWB
Chris@69: static OPUS_INLINE opus_int32 silk_SMLAWB_armv5e(opus_int32 a, opus_int32 b,
Chris@69:  opus_int16 c)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_SMLAWB\n\t"
Chris@69:       "smlawb %0, %1, %2, %3\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "r"(b), "r"(c), "r"(a)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_SMLAWB(a, b, c) (silk_SMLAWB_armv5e(a, b, c))
Chris@69: 
Chris@69: /* (a32 * (b32 >> 16)) >> 16 */
Chris@69: #undef silk_SMULWT
Chris@69: static OPUS_INLINE opus_int32 silk_SMULWT_armv5e(opus_int32 a, opus_int32 b)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_SMULWT\n\t"
Chris@69:       "smulwt %0, %1, %2\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "r"(a), "r"(b)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_SMULWT(a, b) (silk_SMULWT_armv5e(a, b))
Chris@69: 
Chris@69: /* a32 + (b32 * (c32 >> 16)) >> 16 */
Chris@69: #undef silk_SMLAWT
Chris@69: static OPUS_INLINE opus_int32 silk_SMLAWT_armv5e(opus_int32 a, opus_int32 b,
Chris@69:  opus_int32 c)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_SMLAWT\n\t"
Chris@69:       "smlawt %0, %1, %2, %3\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "r"(b), "r"(c), "r"(a)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_SMLAWT(a, b, c) (silk_SMLAWT_armv5e(a, b, c))
Chris@69: 
Chris@69: /* (opus_int32)((opus_int16)(a3))) * (opus_int32)((opus_int16)(b32)) output have to be 32bit int */
Chris@69: #undef silk_SMULBB
Chris@69: static OPUS_INLINE opus_int32 silk_SMULBB_armv5e(opus_int32 a, opus_int32 b)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_SMULBB\n\t"
Chris@69:       "smulbb %0, %1, %2\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "%r"(a), "r"(b)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_SMULBB(a, b) (silk_SMULBB_armv5e(a, b))
Chris@69: 
Chris@69: /* a32 + (opus_int32)((opus_int16)(b32)) * (opus_int32)((opus_int16)(c32)) output have to be 32bit int */
Chris@69: #undef silk_SMLABB
Chris@69: static OPUS_INLINE opus_int32 silk_SMLABB_armv5e(opus_int32 a, opus_int32 b,
Chris@69:  opus_int32 c)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_SMLABB\n\t"
Chris@69:       "smlabb %0, %1, %2, %3\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "%r"(b), "r"(c), "r"(a)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_SMLABB(a, b, c) (silk_SMLABB_armv5e(a, b, c))
Chris@69: 
Chris@69: /* (opus_int32)((opus_int16)(a32)) * (b32 >> 16) */
Chris@69: #undef silk_SMULBT
Chris@69: static OPUS_INLINE opus_int32 silk_SMULBT_armv5e(opus_int32 a, opus_int32 b)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_SMULBT\n\t"
Chris@69:       "smulbt %0, %1, %2\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "r"(a), "r"(b)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_SMULBT(a, b) (silk_SMULBT_armv5e(a, b))
Chris@69: 
Chris@69: /* a32 + (opus_int32)((opus_int16)(b32)) * (c32 >> 16) */
Chris@69: #undef silk_SMLABT
Chris@69: static OPUS_INLINE opus_int32 silk_SMLABT_armv5e(opus_int32 a, opus_int32 b,
Chris@69:  opus_int32 c)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_SMLABT\n\t"
Chris@69:       "smlabt %0, %1, %2, %3\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "r"(b), "r"(c), "r"(a)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_SMLABT(a, b, c) (silk_SMLABT_armv5e(a, b, c))
Chris@69: 
Chris@69: /* add/subtract with output saturated */
Chris@69: #undef silk_ADD_SAT32
Chris@69: static OPUS_INLINE opus_int32 silk_ADD_SAT32_armv5e(opus_int32 a, opus_int32 b)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_ADD_SAT32\n\t"
Chris@69:       "qadd %0, %1, %2\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "%r"(a), "r"(b)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_ADD_SAT32(a, b) (silk_ADD_SAT32_armv5e(a, b))
Chris@69: 
Chris@69: #undef silk_SUB_SAT32
Chris@69: static OPUS_INLINE opus_int32 silk_SUB_SAT32_armv5e(opus_int32 a, opus_int32 b)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_SUB_SAT32\n\t"
Chris@69:       "qsub %0, %1, %2\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "r"(a), "r"(b)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_SUB_SAT32(a, b) (silk_SUB_SAT32_armv5e(a, b))
Chris@69: 
Chris@69: #undef silk_CLZ16
Chris@69: static OPUS_INLINE opus_int32 silk_CLZ16_armv5(opus_int16 in16)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_CLZ16\n\t"
Chris@69:       "clz %0, %1;\n"
Chris@69:       : "=r"(res)
Chris@69:       : "r"(SAFE_SHL(in16,16)|0x8000)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_CLZ16(in16) (silk_CLZ16_armv5(in16))
Chris@69: 
Chris@69: #undef silk_CLZ32
Chris@69: static OPUS_INLINE opus_int32 silk_CLZ32_armv5(opus_int32 in32)
Chris@69: {
Chris@69:   int res;
Chris@69:   __asm__(
Chris@69:       "#silk_CLZ32\n\t"
Chris@69:       "clz %0, %1\n\t"
Chris@69:       : "=r"(res)
Chris@69:       : "r"(in32)
Chris@69:   );
Chris@69:   return res;
Chris@69: }
Chris@69: #define silk_CLZ32(in32) (silk_CLZ32_armv5(in32))
Chris@69: 
Chris@69: #undef SAFE_SHL
Chris@69: 
Chris@69: #endif /* SILK_MACROS_ARMv5E_H */