mirror of https://github.com/mstorsjo/fdk-aac.git
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*************************** Fraunhofer IIS FDK Tools **********************
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(C) Copyright Fraunhofer IIS (2006)
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All Rights Reserved
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Please be advised that this software and/or program delivery is
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Confidential Information of Fraunhofer and subject to and covered by the
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Fraunhofer IIS Software Evaluation Agreement
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between Google Inc. and Fraunhofer
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effective and in full force since March 1, 2012.
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You may use this software and/or program only under the terms and
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conditions described in the above mentioned Fraunhofer IIS Software
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Evaluation Agreement. Any other and/or further use requires a separate agreement.
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$Id$
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Author(s):
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Description: fixed point intrinsics
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This software and/or program is protected by copyright law and international
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treaties. Any reproduction or distribution of this software and/or program,
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or any portion of it, may result in severe civil and criminal penalties, and
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will be prosecuted to the maximum extent possible under law.
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******************************************************************************/
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#if defined(__GNUC__) && defined(__mips__)
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//#define FUNCTION_cplxMultDiv2_32x16
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//#define FUNCTION_cplxMultDiv2_32x16X2
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#define FUNCTION_cplxMultDiv2_32x32X2
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//#define FUNCTION_cplxMult_32x16
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//#define FUNCTION_cplxMult_32x16X2
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#define FUNCTION_cplxMult_32x32X2
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#if defined(FUNCTION_cplxMultDiv2_32x32X2)
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inline void cplxMultDiv2( FIXP_DBL *c_Re,
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FIXP_DBL *c_Im,
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FIXP_DBL a_Re,
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FIXP_DBL a_Im,
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FIXP_DBL b_Re,
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FIXP_DBL b_Im)
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{
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INT result;
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__asm__ ("mult %[a_Re], %[b_Re];\n"
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"msub %[a_Im], %[b_Im];\n"
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: "=hi"(result)
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: [a_Re]"r"(a_Re), [b_Re]"r"(b_Re), [a_Im]"r"(a_Im), [b_Im]"r"(b_Im)
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: "lo");
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*c_Re = result;
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__asm__ ("mult %[a_Re], %[b_Im];\n"
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"madd %[a_Im], %[b_Re];\n"
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: "=hi"(result)
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: [a_Re]"r"(a_Re), [b_Im]"r"(b_Im), [a_Im]"r"(a_Im), [b_Re]"r"(b_Re)
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: "lo");
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*c_Im = result;
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}
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#endif
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#if defined(FUNCTION_cplxMult_32x32X2)
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inline void cplxMult( FIXP_DBL *c_Re,
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FIXP_DBL *c_Im,
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FIXP_DBL a_Re,
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FIXP_DBL a_Im,
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FIXP_DBL b_Re,
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FIXP_DBL b_Im)
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{
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INT result;
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__asm__ ("mult %[a_Re], %[b_Re];\n"
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"msub %[a_Im], %[b_Im];\n"
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: "=hi"(result)
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: [a_Re]"r"(a_Re), [b_Re]"r"(b_Re), [a_Im]"r"(a_Im), [b_Im]"r"(b_Im)
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: "lo");
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*c_Re = result<<1;
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__asm__ ("mult %[a_Re], %[b_Im];\n"
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"madd %[a_Im], %[b_Re];\n"
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: "=hi"(result)
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: [a_Re]"r"(a_Re), [b_Im]"r"(b_Im), [a_Im]"r"(a_Im), [b_Re]"r"(b_Re)
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: "lo");
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*c_Im = result<<1;
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}
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#endif
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#endif /* defined(__GNUC__) && defined(__mips__) */
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