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Diffstat (limited to 'libFDK/include/mips/cplx_mul.h')
-rw-r--r--libFDK/include/mips/cplx_mul.h39
1 files changed, 33 insertions, 6 deletions
diff --git a/libFDK/include/mips/cplx_mul.h b/libFDK/include/mips/cplx_mul.h
index 4e8f26f..fb777ce 100644
--- a/libFDK/include/mips/cplx_mul.h
+++ b/libFDK/include/mips/cplx_mul.h
@@ -107,10 +107,23 @@ inline void cplxMultDiv2( FIXP_DBL *c_Re,
FIXP_DBL b_Re,
FIXP_DBL b_Im)
{
- INT result;
- result = (((long long)a_Re * b_Re) - ((long long) a_Im * b_Im)) >> 32;
+ INT result;
+
+ __asm__ ("mult %[a_Re], %[b_Re];\n"
+ "msub %[a_Im], %[b_Im];\n"
+ "mfhi %[result];\n"
+ : [result]"=r"(result)
+ : [a_Re]"d"(a_Re), [b_Re]"d"(b_Re), [a_Im]"d"(a_Im), [b_Im]"d"(b_Im)
+ : "lo");
+
*c_Re = result;
- result = (((long long)a_Re * b_Im) - ((long long) a_Im * b_Re)) >> 32;
+
+ __asm__ ("mult %[a_Re], %[b_Im];\n"
+ "madd %[a_Im], %[b_Re];\n"
+ "mfhi %[result];\n"
+ : [result]"=r"(result)
+ : [a_Re]"r"(a_Re), [b_Im]"r"(b_Im), [a_Im]"r"(a_Im), [b_Re]"r"(b_Re)
+ : "lo");
*c_Im = result;
}
#endif
@@ -123,10 +136,24 @@ inline void cplxMult( FIXP_DBL *c_Re,
FIXP_DBL b_Re,
FIXP_DBL b_Im)
{
- INT result;
- result = (((long long)a_Re * b_Re) - ((long long) a_Im * b_Im)) >> 32;
+ INT result;
+
+ __asm__ ("mult %[a_Re], %[b_Re];\n"
+ "msub %[a_Im], %[b_Im];\n"
+ "mfhi %[result];\n"
+ //"extr_w %[result], 31;\n"
+ : [result]"=r"(result)
+ : [a_Re]"r"(a_Re), [b_Re]"r"(b_Re), [a_Im]"r"(a_Im), [b_Im]"r"(b_Im)
+ : "lo");
*c_Re = result<<1;
- result = (((long long)a_Re * b_Im) - ((long long) a_Im * b_Re)) >> 32;
+
+ __asm__ ("mult %[a_Re], %[b_Im];\n"
+ "madd %[a_Im], %[b_Re];\n"
+ "mfhi %[result];\n"
+ //"extr_w %[result], 31;\n"
+ : [result]"=r"(result)
+ : [a_Re]"r"(a_Re), [b_Im]"r"(b_Im), [a_Im]"r"(a_Im), [b_Re]"r"(b_Re)
+ : "lo");
*c_Im = result<<1;
}
#endif