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fmtconvert: fix int32_to_float_fmul_scalar() for windows x86_64
The calling convention only allows 4 non-stack parameter, with each float or int register being skipped if not used. fixes Bug 64
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@ -28,10 +28,14 @@ SECTION_TEXT
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; void int32_to_float_fmul_scalar(float *dst, const int *src, float mul, int len);
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;---------------------------------------------------------------------------------
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%macro INT32_TO_FLOAT_FMUL_SCALAR 2
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%ifdef ARCH_X86_64
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%ifdef UNIX64
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cglobal int32_to_float_fmul_scalar_%1, 3,3,%2, dst, src, len
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%else
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cglobal int32_to_float_fmul_scalar_%1, 4,4,%2, dst, src, mul, len
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%endif
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%ifdef WIN64
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SWAP 0, 2
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%elifdef ARCH_X86_32
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movss m0, mulm
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%endif
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SPLATD m0
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