Index: celt/arm/kiss_fft_armv5e.h |
diff --git a/celt/arm/kiss_fft_armv5e.h b/celt/arm/kiss_fft_armv5e.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..9eca183d77d6d148396c1b51e7e92870910bb853 |
--- /dev/null |
+++ b/celt/arm/kiss_fft_armv5e.h |
@@ -0,0 +1,118 @@ |
+/*Copyright (c) 2013, Xiph.Org Foundation and contributors. |
+ |
+ All rights reserved. |
+ |
+ 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. |
+ |
+ 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 COPYRIGHT OWNER 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.*/ |
+ |
+#ifndef KISS_FFT_ARMv5E_H |
+#define KISS_FFT_ARMv5E_H |
+ |
+#if !defined(KISS_FFT_GUTS_H) |
+#error "This file should only be included from _kiss_fft_guts.h" |
+#endif |
+ |
+#ifdef FIXED_POINT |
+ |
+#if defined(__thumb__)||defined(__thumb2__) |
+#define LDRD_CONS "Q" |
+#else |
+#define LDRD_CONS "Uq" |
+#endif |
+ |
+#undef C_MUL |
+#define C_MUL(m,a,b) \ |
+ do{ \ |
+ int mr1__; \ |
+ int mr2__; \ |
+ int mi__; \ |
+ long long aval__; \ |
+ int bval__; \ |
+ __asm__( \ |
+ "#C_MUL\n\t" \ |
+ "ldrd %[aval], %H[aval], %[ap]\n\t" \ |
+ "ldr %[bval], %[bp]\n\t" \ |
+ "smulwb %[mi], %H[aval], %[bval]\n\t" \ |
+ "smulwb %[mr1], %[aval], %[bval]\n\t" \ |
+ "smulwt %[mr2], %H[aval], %[bval]\n\t" \ |
+ "smlawt %[mi], %[aval], %[bval], %[mi]\n\t" \ |
+ : [mr1]"=r"(mr1__), [mr2]"=r"(mr2__), [mi]"=r"(mi__), \ |
+ [aval]"=&r"(aval__), [bval]"=r"(bval__) \ |
+ : [ap]LDRD_CONS(a), [bp]"m"(b) \ |
+ ); \ |
+ (m).r = SHL32(SUB32(mr1__, mr2__), 1); \ |
+ (m).i = SHL32(mi__, 1); \ |
+ } \ |
+ while(0) |
+ |
+#undef C_MUL4 |
+#define C_MUL4(m,a,b) \ |
+ do{ \ |
+ int mr1__; \ |
+ int mr2__; \ |
+ int mi__; \ |
+ long long aval__; \ |
+ int bval__; \ |
+ __asm__( \ |
+ "#C_MUL4\n\t" \ |
+ "ldrd %[aval], %H[aval], %[ap]\n\t" \ |
+ "ldr %[bval], %[bp]\n\t" \ |
+ "smulwb %[mi], %H[aval], %[bval]\n\t" \ |
+ "smulwb %[mr1], %[aval], %[bval]\n\t" \ |
+ "smulwt %[mr2], %H[aval], %[bval]\n\t" \ |
+ "smlawt %[mi], %[aval], %[bval], %[mi]\n\t" \ |
+ : [mr1]"=r"(mr1__), [mr2]"=r"(mr2__), [mi]"=r"(mi__), \ |
+ [aval]"=&r"(aval__), [bval]"=r"(bval__) \ |
+ : [ap]LDRD_CONS(a), [bp]"m"(b) \ |
+ ); \ |
+ (m).r = SHR32(SUB32(mr1__, mr2__), 1); \ |
+ (m).i = SHR32(mi__, 1); \ |
+ } \ |
+ while(0) |
+ |
+#undef C_MULC |
+#define C_MULC(m,a,b) \ |
+ do{ \ |
+ int mr__; \ |
+ int mi1__; \ |
+ int mi2__; \ |
+ long long aval__; \ |
+ int bval__; \ |
+ __asm__( \ |
+ "#C_MULC\n\t" \ |
+ "ldrd %[aval], %H[aval], %[ap]\n\t" \ |
+ "ldr %[bval], %[bp]\n\t" \ |
+ "smulwb %[mr], %[aval], %[bval]\n\t" \ |
+ "smulwb %[mi1], %H[aval], %[bval]\n\t" \ |
+ "smulwt %[mi2], %[aval], %[bval]\n\t" \ |
+ "smlawt %[mr], %H[aval], %[bval], %[mr]\n\t" \ |
+ : [mr]"=r"(mr__), [mi1]"=r"(mi1__), [mi2]"=r"(mi2__), \ |
+ [aval]"=&r"(aval__), [bval]"=r"(bval__) \ |
+ : [ap]LDRD_CONS(a), [bp]"m"(b) \ |
+ ); \ |
+ (m).r = SHL32(mr__, 1); \ |
+ (m).i = SHL32(SUB32(mi1__, mi2__), 1); \ |
+ } \ |
+ while(0) |
+ |
+#endif /* FIXED_POINT */ |
+ |
+#endif /* KISS_FFT_GUTS_H */ |