mirror of
https://git.busybox.net/buildroot.git
synced 2024-11-29 16:40:02 +08:00
2923 lines
83 KiB
Diff
2923 lines
83 KiB
Diff
diff --git a/bit.c b/bit.c
|
||
index c2bfb24..262ce3a 100644
|
||
--- a/bit.c
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||
+++ b/bit.c
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||
@@ -25,12 +25,6 @@
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||
|
||
# include "global.h"
|
||
|
||
-# ifdef HAVE_LIMITS_H
|
||
-# include <limits.h>
|
||
-# else
|
||
-# define CHAR_BIT 8
|
||
-# endif
|
||
-
|
||
# include "bit.h"
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||
|
||
/*
|
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@@ -81,6 +75,8 @@ unsigned short const crc_table[256] = {
|
||
|
||
# define CRC_POLY 0x8005
|
||
|
||
+#ifndef FPM_AVR32
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||
+
|
||
/*
|
||
* NAME: bit->init()
|
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* DESCRIPTION: initialize bit pointer struct
|
||
@@ -190,6 +186,8 @@ void mad_bit_write(struct mad_bitptr *bitptr, unsigned int len,
|
||
}
|
||
# endif
|
||
|
||
+#endif
|
||
+
|
||
/*
|
||
* NAME: bit->crc()
|
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* DESCRIPTION: compute CRC-check word
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||
diff --git a/bit.h b/bit.h
|
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index 5a51570..70f550a 100644
|
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--- a/bit.h
|
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+++ b/bit.h
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@@ -22,6 +22,92 @@
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# ifndef LIBMAD_BIT_H
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# define LIBMAD_BIT_H
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|
||
+# ifdef HAVE_LIMITS_H
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+# include <limits.h>
|
||
+# else
|
||
+# define CHAR_BIT 8
|
||
+# endif
|
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+
|
||
+#ifdef FPM_AVR32
|
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+
|
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+struct mad_bitptr {
|
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+ unsigned char const *byte;
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+ unsigned int read_bytes;
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+};
|
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+
|
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+/*
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+ * NAME: bit->init()
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+ * DESCRIPTION: initialize bit pointer struct
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+ */
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+static void mad_bit_init(struct mad_bitptr *bitptr, unsigned char const *byte)
|
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+{
|
||
+ bitptr->byte = byte;
|
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+ bitptr->read_bytes = 0;
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+}
|
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+
|
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+/*
|
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+ * NAME: bit->length()
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+ * DESCRIPTION: return number of bits between start and end points
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+ */
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+static unsigned int mad_bit_length(struct mad_bitptr const *begin,
|
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+ struct mad_bitptr const *end)
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+{
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+ return (end->read_bytes - begin->read_bytes) +
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+ 8 * (end->byte - begin->byte);
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+}
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+
|
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+/*
|
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+ * NAME: bit->nextbyte()
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+ * DESCRIPTION: return pointer to next unprocessed byte
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+ */
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+static unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *bitptr)
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+{
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+ return bitptr->byte + ((bitptr->read_bytes + 0x7) >> 3);
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+}
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+
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+/*
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+ * NAME: bit->skip()
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+ * DESCRIPTION: advance bit pointer
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+ */
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+static void mad_bit_skip(struct mad_bitptr *bitptr, unsigned int len)
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+{
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+ bitptr->read_bytes += len;
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+ bitptr->byte += (bitptr->read_bytes >> 3);
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+ bitptr->read_bytes &= 0x7;
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+}
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+
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+/*
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+ * NAME: bit->read()
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+ * DESCRIPTION: read an arbitrary number of bits and return their UIMSBF value
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+ */
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+static unsigned long mad_bit_read(struct mad_bitptr *bitptr, unsigned int len)
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+{
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+ register unsigned long value;
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+
|
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+ if (!len)
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+ return 0;
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+
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+ value = *(unsigned int *)bitptr->byte;
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+
|
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+ value <<= bitptr->read_bytes;
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+ value >>= (32 - len);
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+
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+ bitptr->read_bytes += len;
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+ bitptr->byte += (bitptr->read_bytes >> 3);
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+ bitptr->read_bytes &= 0x7;
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+
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+ return value;
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+}
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+
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+# define mad_bit_finish(bitptr) /* nothing */
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+
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+static unsigned long mad_bit_bitsleft(struct mad_bitptr *bitptr)
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+{
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+ return (8 - (bitptr)->read_bytes);
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+}
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+
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+#else /* #ifdef FPM_AVR32 */
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+
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struct mad_bitptr {
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unsigned char const *byte;
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unsigned short cache;
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@@ -42,6 +128,8 @@ void mad_bit_skip(struct mad_bitptr *, unsigned int);
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unsigned long mad_bit_read(struct mad_bitptr *, unsigned int);
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void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long);
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+#endif
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+
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unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short);
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# endif
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diff --git a/configure b/configure
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index ee421cc..7a9f0c8 100755
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--- a/configure
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+++ b/configure
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@@ -1048,7 +1048,7 @@ Optional Features:
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--enable-speed optimize for speed over accuracy
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--enable-accuracy optimize for accuracy over speed
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--enable-fpm=ARCH use ARCH-specific fixed-point math routines (one of:
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- intel, arm, mips, sparc, ppc, 64bit, default)
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+ intel, arm, avr32, mips, sparc, ppc, 64bit, default)
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--enable-sso use subband synthesis optimization
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--disable-aso disable architecture-specific optimizations
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--enable-strict-iso use strict ISO/IEC interpretations
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@@ -21477,6 +21477,7 @@ if test "${enable_fpm+set}" = set; then
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no|default|approx) FPM="DEFAULT" ;;
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intel|i?86) FPM="INTEL" ;;
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arm) FPM="ARM" ;;
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+ avr32) FPM="AVR32" ;;
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mips) FPM="MIPS" ;;
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sparc) FPM="SPARC" ;;
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ppc|powerpc) FPM="PPC" ;;
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@@ -21498,6 +21499,7 @@ then
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case "$host" in
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i?86-*) FPM="INTEL" ;;
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arm*-*) FPM="ARM" ;;
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+ avr32*-*) FPM="AVR32" ;;
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mips*-*) FPM="MIPS" ;;
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sparc*-*) FPM="SPARC" ;;
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powerpc*-*) FPM="PPC" ;;
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@@ -21554,6 +21556,11 @@ then
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ASO="$ASO -DASO_IMDCT"
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ASO_OBJS="imdct_l_arm.lo"
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;;
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+ avr32*-*)
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+ ASO="$ASO -DASO_INTERLEAVE2"
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+ ASO="$ASO -DASO_ZEROCHECK"
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+ ASO_OBJS="dct32_avr32.lo synth_avr32.lo imdct_avr32.lo"
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+ ;;
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mips*-*)
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ASO="$ASO -DASO_INTERLEAVE2"
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ASO="$ASO -DASO_ZEROCHECK"
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diff --git a/configure.ac b/configure.ac
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index 9b79399..063cb9b 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -274,13 +274,14 @@ fi
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AC_MSG_CHECKING(for architecture-specific fixed-point math routines)
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AC_ARG_ENABLE(fpm, AC_HELP_STRING([--enable-fpm=ARCH],
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[use ARCH-specific fixed-point math routines
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- (one of: intel, arm, mips, sparc, ppc, 64bit, default)]),
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+ (one of: intel, arm, avr32, mips, sparc, ppc, 64bit, default)]),
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[
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case "$enableval" in
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yes) ;;
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no|default|approx) FPM="DEFAULT" ;;
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intel|i?86) FPM="INTEL" ;;
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arm) FPM="ARM" ;;
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+ avr32) FPM="AVR32" ;;
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mips) FPM="MIPS" ;;
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sparc) FPM="SPARC" ;;
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ppc|powerpc) FPM="PPC" ;;
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@@ -298,6 +299,7 @@ then
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case "$host" in
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i?86-*) FPM="INTEL" ;;
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arm*-*) FPM="ARM" ;;
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+ avr32*-*) FPM="AVR32" ;;
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mips*-*) FPM="MIPS" ;;
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sparc*-*) FPM="SPARC" ;;
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powerpc*-*) FPM="PPC" ;;
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@@ -343,6 +345,11 @@ then
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ASO="$ASO -DASO_IMDCT"
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ASO_OBJS="imdct_l_arm.lo"
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;;
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+ avr32*-*)
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+ ASO="$ASO -DASO_INTERLEAVE2"
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+ ASO="$ASO -DASO_ZEROCHECK"
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+ ASO_OBJS="dct32_avr32.lo synth_avr32.lo imdct_avr32.lo"
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+ ;;
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mips*-*)
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ASO="$ASO -DASO_INTERLEAVE2"
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ASO="$ASO -DASO_ZEROCHECK"
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diff --git a/dct32_avr32.S b/dct32_avr32.S
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new file mode 100644
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index 0000000..7513340
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--- /dev/null
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+++ b/dct32_avr32.S
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@@ -0,0 +1,780 @@
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+/*
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+ Optimized 32-point Discrete Cosine Transform (DCT)
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+ Copyright 2003-2006 Atmel Corporation.
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+
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+ Written by Ronny Pedersen, Atmel Norway
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
|
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+ the Free Software Foundation; either version 2 of the License, or
|
||
+ (at your option) any later version.
|
||
+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
+ GNU General Public License for more details.
|
||
+
|
||
+ You should have received a copy of the GNU General Public License
|
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+ along with this program; if not, write to the Free Software
|
||
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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+
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+#define SHIFT 12
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+#define MAD_F_SCALEBITS 28
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+#define SLOTS 8
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+
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+#define MAD_F(x) ((x + (1 << 15)) >> 16)
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+
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+# define costab1 MAD_F(0x7fd8878e)
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+# define costab2 MAD_F(0x7f62368f)
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+# define costab3 MAD_F(0x7e9d55fc)
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+# define costab4 MAD_F(0x7d8a5f40)
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+# define costab5 MAD_F(0x7c29fbee)
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+# define costab6 MAD_F(0x7a7d055b)
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+# define costab7 MAD_F(0x78848414)
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+# define costab8 MAD_F(0x7641af3d)
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+# define costab9 MAD_F(0x73b5ebd1)
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+# define costab10 MAD_F(0x70e2cbc6)
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+# define costab11 MAD_F(0x6dca0d14)
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+# define costab12 MAD_F(0x6a6d98a4)
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+# define costab13 MAD_F(0x66cf8120)
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+# define costab14 MAD_F(0x62f201ac)
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+# define costab15 MAD_F(0x5ed77c8a)
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+# define costab16 MAD_F(0x5a82799a)
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+# define costab17 MAD_F(0x55f5a4d2)
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+# define costab18 MAD_F(0x5133cc94)
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+# define costab19 MAD_F(0x4c3fdff4)
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+# define costab20 MAD_F(0x471cece7)
|
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+# define costab21 MAD_F(0x41ce1e65)
|
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+# define costab22 MAD_F(0x3c56ba70)
|
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+# define costab23 MAD_F(0x36ba2014)
|
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+# define costab24 MAD_F(0x30fbc54d)
|
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+# define costab25 MAD_F(0x2b1f34eb)
|
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+# define costab26 MAD_F(0x25280c5e)
|
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+# define costab27 MAD_F(0x1f19f97b)
|
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+# define costab28 MAD_F(0x18f8b83c)
|
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+# define costab29 MAD_F(0x12c8106f)
|
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+# define costab30 MAD_F(0x0c8bd35e)
|
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+# define costab31 MAD_F(0x0647d97c)
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+
|
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+
|
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+ .macro butterfly2_in out1, out2, out3, out4, in, idx_in1, idx_in2, idx_in3, idx_in4, coeff1, coeff2, tmplo, tmphi
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+ mov \tmplo, \coeff1
|
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+ ld.w \out1, \in[\idx_in1 * 4]
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+ ld.w \out2, \in[\idx_in2 * 4]
|
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+ ld.w \out3, \in[\idx_in3 * 4]
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+ ld.w \out4, \in[\idx_in4 * 4]
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+ sub \tmphi, \out1, \out2
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+ add \out1, \out2
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+ mulsatrndwh.w \out2, \tmphi, \tmplo:b
|
||
+
|
||
+ sub \tmphi, \out3, \out4
|
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+ mov \tmplo, \coeff2
|
||
+ add \out3, \out4
|
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+ mulsatrndwh.w \out4, \tmphi, \tmplo:b
|
||
+ .endm
|
||
+
|
||
+ .macro butterfly2 in1, in2, in3, in4, coeff1, tmplo, tmphi, tmp
|
||
+ mov \tmp, \coeff1
|
||
+ sub \tmphi, \in1, \in2
|
||
+ add \in1, \in2
|
||
+ mulsatrndwh.w \in2, \tmphi, \tmp:b
|
||
+
|
||
+ sub \tmphi, \in3, \in4
|
||
+ add \in3, \in4
|
||
+ mulsatrndwh.w \in4, \tmphi, \tmp:b
|
||
+ .endm
|
||
+
|
||
+ .macro butterfly4 in1, in2, in3, in4, in5, in6, in7, in8, coeff1, tmplo, tmphi, tmp
|
||
+ mov \tmp, \coeff1
|
||
+ sub \tmphi, \in1, \in2
|
||
+ add \in1, \in2
|
||
+ mulsatrndwh.w \in2, \tmphi, \tmp:b
|
||
+
|
||
+ sub \tmphi, \in3, \in4
|
||
+ add \in3, \in4
|
||
+ mulsatrndwh.w \in4, \tmphi, \tmp:b
|
||
+
|
||
+ sub \tmphi, \in5, \in6
|
||
+ add \in5, \in6
|
||
+ mulsatrndwh.w \in6, \tmphi, \tmp:b
|
||
+
|
||
+ sub \tmphi, \in7, \in8
|
||
+ add \in7, \in8
|
||
+ mulsatrndwh.w \in8, \tmphi, \tmp:b
|
||
+ .endm
|
||
+
|
||
+ .macro scale reg
|
||
+ .endm
|
||
+
|
||
+/*void dct32( mad_fixed_t const in[32], unsigned int slot,
|
||
+ mad_fixed_t lo[16][8], mad_fixed_t hi[16][8]) */
|
||
+
|
||
+ .global dct32_avr32
|
||
+dct32_avr32:
|
||
+ stm --sp, r0-r7, r9-r11, lr
|
||
+
|
||
+ sub sp, 32*4
|
||
+
|
||
+/* t0 = in[0] + in[31]; t16 = MUL(in[0] - in[31], costab1);
|
||
+ t1 = in[15] + in[16]; t17 = MUL(in[15] - in[16], costab31); */
|
||
+ butterfly2_in r4/*t0*/, r5/*t16*/, r6/*t1*/, r7/*t17*/, r12, 0, 31, 15, 16, costab1, costab31, r10, r11
|
||
+
|
||
+/* t41 = t16 + t17;
|
||
+ t59 = MUL(t16 - t17, costab2);
|
||
+ t33 = t0 + t1;
|
||
+ t50 = MUL(t0 - t1, costab2);*/
|
||
+ butterfly2 r5/*t41*/, r7/*t59*/, r4/*t33*/, r6/*t50*/, costab2, r10, r11, lr
|
||
+
|
||
+/* t2 = in[7] + in[24]; t18 = MUL(in[7] - in[24], costab15);
|
||
+ t3 = in[8] + in[23]; t19 = MUL(in[8] - in[23], costab17); */
|
||
+ butterfly2_in r0/*t2*/, r1/*t18*/, r2/*t3*/, r3/*t19*/, r12, 7, 24, 8, 23, costab15, costab17, r10, r11
|
||
+
|
||
+/* t42 = t18 + t19;
|
||
+ t60 = MUL(t18 - t19, costab30);
|
||
+ t34 = t2 + t3;
|
||
+ t51 = MUL(t2 - t3, costab30); */
|
||
+ butterfly2 r1/*t42*/, r3/*t60*/, r0/*t34*/, r2/*t51*/, costab30, r10, r11, lr
|
||
+
|
||
+/* t73 = t41 + t42; t94 = MUL(t41 - t42, costab4);
|
||
+ t83 = t59 + t60; t106 = MUL(t59 - t60, costab4); */
|
||
+
|
||
+
|
||
+/* t69 = t33 + t34; t89 = MUL(t33 - t34, costab4);
|
||
+ t78 = t50 + t51; t100 = MUL(t50 - t51, costab4); */
|
||
+ butterfly4 r5/*t73*/, r1/*t94*/, r7/*t83*/, r3/*t106*/,r4/*t69*/, r0/*t89*/, r6/*t78*/, r2/*t100*/, costab4, r10, r11, lr
|
||
+
|
||
+/* Store away the computed butterflies:
|
||
+ sp[0-7] = t83, t78, t73, t69, t106, t100, t94, t89 */
|
||
+ stm sp, r0-r7
|
||
+
|
||
+
|
||
+/* t4 = in[3] + in[28]; t20 = MUL(in[3] - in[28], costab7);
|
||
+ t5 = in[12] + in[19]; t21 = MUL(in[12] - in[19], costab25); */
|
||
+ butterfly2_in r4/*t4*/, r5/*t20*/, r6/*t5*/, r7/*t21*/, r12, 3, 28, 12, 19, costab7, costab25, r10, r11
|
||
+
|
||
+/* t43 = t20 + t21;
|
||
+ t61 = MUL(t20 - t21, costab14);
|
||
+ t35 = t4 + t5;
|
||
+ t52 = MUL(t4 - t5, costab14); */
|
||
+ butterfly2 r5/*t43*/, r7/*t61*/, r4/*t35*/, r6/*t52*/, costab14, r10, r11, lr
|
||
+
|
||
+/* t6 = in[4] + in[27]; t22 = MUL(in[4] - in[27], costab9);
|
||
+ t7 = in[11] + in[20]; t23 = MUL(in[11] - in[20], costab23); */
|
||
+ butterfly2_in r0/*t6*/, r1/*t22*/, r2/*t7*/, r3/*t23*/, r12, 4, 27, 11, 20, costab9, costab23, r10, r11
|
||
+
|
||
+/* t44 = t22 + t23;
|
||
+ t62 = MUL(t22 - t23, costab18);
|
||
+ t36 = t6 + t7;
|
||
+ t53 = MUL(t6 - t7, costab18); */
|
||
+ butterfly2 r1/*t44*/, r3/*t62*/, r0/*t36*/, r2/*t53*/, costab18, r10, r11, lr
|
||
+
|
||
+/* t74 = t43 + t44; t95 = MUL(t43 - t44, costab28);
|
||
+ t84 = t61 + t62; t107 = MUL(t61 - t62, costab28); */
|
||
+
|
||
+/* t70 = t35 + t36; t90 = MUL(t35 - t36, costab28);
|
||
+ t79 = t52 + t53; t101 = MUL(t52 - t53, costab28); */
|
||
+ butterfly4 r5/*t74*/, r1/*t95*/, r7/*t84*/, r3/*t107*/, r4/*t70*/, r0/*t90*/, r6/*t79*/, r2/*t101*/, costab28, r10, r11, lr
|
||
+
|
||
+/* Store away the computed butterflies:
|
||
+ sp[8-15] = t84, t79, t74, t70, t107, t101, t95, t90 */
|
||
+ sub r10, sp, -8*4
|
||
+ stm r10, r0-r7
|
||
+
|
||
+
|
||
+/* t8 = in[1] + in[30]; t24 = MUL(in[1] - in[30], costab3);
|
||
+ t9 = in[14] + in[17]; t25 = MUL(in[14] - in[17], costab29); */
|
||
+ butterfly2_in r4/*t8*/, r5/*t24*/, r6/*t9*/, r7/*t25*/, r12, 1, 30, 14, 17, costab3, costab29, r10, r11
|
||
+
|
||
+
|
||
+/* t45 = t24 + t25;
|
||
+ t63 = MUL(t24 - t25, costab6);
|
||
+ t37 = t8 + t9;
|
||
+ t54 = MUL(t8 - t9, costab6); */
|
||
+ butterfly2 r5/*t45*/, r7/*t63*/, r4/*t37*/, r6/*t54*/, costab6, r10, r11, lr
|
||
+
|
||
+/* t10 = in[6] + in[25]; t26 = MUL(in[6] - in[25], costab13);
|
||
+ t11 = in[9] + in[22]; t27 = MUL(in[9] - in[22], costab19); */
|
||
+ butterfly2_in r0/*t10*/, r1/*t26*/, r2/*t11*/, r3/*t27*/, r12, 6, 25, 9, 22, costab13, costab19, r10, r11
|
||
+
|
||
+/* t46 = t26 + t27;
|
||
+ t64 = MUL(t26 - t27, costab26);
|
||
+ t38 = t10 + t11;
|
||
+ t55 = MUL(t10 - t11, costab26); */
|
||
+ butterfly2 r1/*t46*/, r3/*t64*/, r0/*t38*/, r2/*t55*/, costab26, r10, r11, lr
|
||
+
|
||
+/* t75 = t45 + t46; t96 = MUL(t45 - t46, costab12);
|
||
+ t85 = t63 + t64; t108 = MUL(t63 - t64, costab12); */
|
||
+
|
||
+/* t71 = t37 + t38; t91 = MUL(t37 - t38, costab12);
|
||
+ t80 = t54 + t55; t102 = MUL(t54 - t55, costab12); */
|
||
+ butterfly4 r5/*t75*/, r1/*t96*/, r7/*t85*/, r3/*t108*/, r4/*t71*/, r0/*t91*/, r6/*t80*/, r2/*t102*/, costab12, r10, r11, lr
|
||
+
|
||
+/* Store away the computed butterflies:
|
||
+ sp[16-23] = t85, t80, t75, t71, t108, t102, t96, t91 */
|
||
+ sub r10, sp, -16*4
|
||
+ stm r10, r0-r7
|
||
+
|
||
+/* t12 = in[2] + in[29]; t28 = MUL(in[2] - in[29], costab5);
|
||
+ t13 = in[13] + in[18]; t29 = MUL(in[13] - in[18], costab27); */
|
||
+ butterfly2_in r4/*t12*/, r5/*t28*/, r6/*t13*/, r7/*t29*/, r12, 2, 29, 13, 18, costab5, costab27, r10, r11
|
||
+
|
||
+/* t47 = t28 + t29;
|
||
+ t65 = MUL(t28 - t29, costab10);
|
||
+ t39 = t12 + t13;
|
||
+ t56 = MUL(t12 - t13, costab10); */
|
||
+ butterfly2 r5/*t47*/, r7/*t65*/, r4/*t39*/, r6/*t56*/, costab10, r10, r11, lr
|
||
+
|
||
+/* t14 = in[5] + in[26]; t30 = MUL(in[5] - in[26], costab11);
|
||
+ t15 = in[10] + in[21]; t31 = MUL(in[10] - in[21], costab21);*/
|
||
+ butterfly2_in r0/*t14*/, r1/*t30*/, r2/*t15*/, r3/*t31*/, r12, 5, 26, 10, 21, costab11, costab21, r10, r11
|
||
+
|
||
+/* t48 = t30 + t31;
|
||
+ t66 = MUL(t30 - t31, costab22);
|
||
+ t40 = t14 + t15;
|
||
+ t57 = MUL(t14 - t15, costab22);*/
|
||
+ butterfly2 r1/*t48*/, r3/*t66*/, r0/*t40*/, r2/*t57*/, costab22, r10, r11, lr
|
||
+
|
||
+/* t76 = t47 + t48; t97 = MUL(t47 - t48, costab20);
|
||
+ t86 = t65 + t66; t109 = MUL(t65 - t66, costab20);*/
|
||
+
|
||
+/* t72 = t39 + t40; t92 = MUL(t39 - t40, costab20);
|
||
+ t81 = t56 + t57; t103 = MUL(t56 - t57, costab20);*/
|
||
+ butterfly4 r5/*t76*/, r1/*t97*/, r7/*t86*/, r3/*t109*/,r4/*t72*/, r0/*t92*/, r6/*t81*/, r2/*t103*/, costab20, r10, r11, lr
|
||
+
|
||
+/* Store away the computed butterflies:
|
||
+ sp[24-31] = t86, t81, t76, t72, t109, t103, t97, t92 */
|
||
+ sub r10, sp, -24*4
|
||
+ stm r10, r0-r7
|
||
+
|
||
+/* We now have the following on the stack:
|
||
+
|
||
+ sp[0-7] = t83, t78, t73, t69, t106, t100, t94, t89
|
||
+ sp[8-15] = t84, t79, t74, t70, t107, t101, t95, t90
|
||
+ sp[16-23] = t85, t80, t75, t71, t108, t102, t96, t91
|
||
+ sp[24-31] = t86, t81, t76, t72, t109, t103, t97, t92 */
|
||
+
|
||
+/* Load {r0...r7} = { t72, t76, t71, t75, t70, t74, t69, t73 } */
|
||
+ ld.d r6, sp[2*4]
|
||
+ ld.d r4, sp[10*4]
|
||
+ ld.d r2, sp[18*4]
|
||
+ ld.d r0, sp[26*4]
|
||
+
|
||
+
|
||
+/* t113 = t69 + t70;
|
||
+ t141 = MUL(t69 - t70, costab8);
|
||
+
|
||
+ t115 = t73 + t74;
|
||
+ t144 = MUL(t73 - t74, costab8); */
|
||
+ butterfly2 r6/*t113*/, r4/*t141*/, r7/*t115*/, r5/*t144*/, costab8, r10, r11, lr
|
||
+
|
||
+/* t114 = t71 + t72;
|
||
+ t142 = MUL(t71 - t72, costab24);
|
||
+
|
||
+ t116 = t75 + t76;
|
||
+ t145 = MUL(t75 - t76, costab24); */
|
||
+ butterfly2 r2/*t114*/, r0/*t142*/, r3/*t116*/, r1/*t145*/, costab24, r10, r11, lr
|
||
+
|
||
+
|
||
+/*
|
||
+ t191 = t113 + t114;
|
||
+ t192 = MUL(t113 - t114, costab16)
|
||
+
|
||
+ t32 = t115 + t116;
|
||
+ t177 = MUL(t115 - t116, costab16) ;
|
||
+
|
||
+ t143 = t141 + t142;
|
||
+ t190 = MUL(t141 - t142, costab16) ;
|
||
+
|
||
+ t146 = t144 + t145;
|
||
+ t184 = MUL(t144 - t145, costab16) ; */
|
||
+ butterfly4 r6/*t191*/, r2/*t192*/, r7/*t32*/, r3/*t177*/, r4/*t143*/, r0/*190*/, r5/*t146*/, r1/*t184*/, costab16, r10, r11, lr
|
||
+
|
||
+/* Store away the computed butterflies:
|
||
+ sp[2-3] = t32, t191
|
||
+ sp[10-11] = t146, t143
|
||
+ sp[18-19] = t177, t192
|
||
+ sp[26-27] = t184, t190 */
|
||
+ st.d sp[2*4] , r6
|
||
+ st.d sp[10*4], r4
|
||
+ st.d sp[18*4], r2
|
||
+ st.d sp[26*4], r0
|
||
+
|
||
+/* Load {r0...r7} = { t81, t86, t80, t85, t79, t84, t78, t83 } */
|
||
+ ld.d r6, sp[0*4]
|
||
+ ld.d r4, sp[8*4]
|
||
+ ld.d r2, sp[16*4]
|
||
+ ld.d r0, sp[24*4]
|
||
+
|
||
+
|
||
+/* t118 = t78 + t79;
|
||
+ t148 = MUL(t78 - t79, costab8);
|
||
+
|
||
+ t121 = t83 + t84;
|
||
+ t152 = MUL(t83 - t84, costab8); */
|
||
+ butterfly2 r6/*t118*/, r4/*t148*/, r7/*t121*/, r5/*t152*/, costab8, r10, r11, lr
|
||
+
|
||
+/* t119 = t80 + t81;
|
||
+ t149 = MUL(t80 - t81, costab24);
|
||
+
|
||
+ t122 = t85 + t86;
|
||
+ t153 = MUL(t85 - t86, costab24); */
|
||
+ butterfly2 r2/*t119*/, r0/*t149*/, r3/*t122*/, r1/*t153*/, costab24, r10, r11, lr
|
||
+
|
||
+
|
||
+
|
||
+/* t58 = t118 + t119;
|
||
+ t178 = MUL(t118 - t119, costab16) ;
|
||
+
|
||
+ t67 = t121 + t122;
|
||
+ t179 = MUL(t121 - t122, costab16) ;
|
||
+
|
||
+ t150 = t148 + t149;
|
||
+ t185 = MUL(t148 - t149, costab16) ;
|
||
+
|
||
+ t154 = t152 + t153;
|
||
+ t186 = MUL(t152 - t153, costab16) ; */
|
||
+ butterfly4 r6/*t58*/, r2/*t178*/, r7/*t67*/, r3/*t179*/, r4/*t150*/, r0/*185*/, r5/*t154*/, r1/*t186*/, costab16, r10, r11, lr
|
||
+
|
||
+/* Store away the computed butterflies:
|
||
+ sp[0-1] = t67, t58
|
||
+ sp[8-9] = t154, t150
|
||
+ sp[16-17] = t179, t178
|
||
+ sp[24-25] = t186, t185 */
|
||
+ st.d sp[0*4] , r6
|
||
+ st.d sp[8*4], r4
|
||
+ st.d sp[16*4], r2
|
||
+ st.d sp[24*4], r0
|
||
+
|
||
+/* Load {r0...r7} = { t92, t97, t91, t96, t90, t95, t89, t94 } */
|
||
+ ld.d r6, sp[6*4]
|
||
+ ld.d r4, sp[14*4]
|
||
+ ld.d r2, sp[22*4]
|
||
+ ld.d r0, sp[30*4]
|
||
+
|
||
+
|
||
+/* t125 = t89 + t90;
|
||
+ t157 = MUL(t89 - t90, costab8);
|
||
+
|
||
+ t128 = t94 + t95;
|
||
+ t161 = MUL(t94 - t95, costab8); */
|
||
+ butterfly2 r6/*t125*/, r4/*t157*/, r7/*t128*/, r5/*t161*/, costab8, r10, r11, lr
|
||
+
|
||
+/* t126 = t91 + t92;
|
||
+ t158 = MUL(t91 - t92, costab24);
|
||
+
|
||
+ t129 = t96 + t97;
|
||
+ t162 = MUL(t96 - t97, costab24); */
|
||
+ butterfly2 r2/*t126*/, r0/*t158*/, r3/*t129*/, r1/*t162*/, costab24, r10, r11, lr
|
||
+
|
||
+
|
||
+/*
|
||
+ t93 = t125 + t126;
|
||
+ t180 = MUL(t125 - t126, costab16) ;
|
||
+
|
||
+ t98 = t128 + t129;
|
||
+ t181 = MUL(t128 - t129, costab16) ;
|
||
+
|
||
+ t159 = t157 + t158;
|
||
+ t187 = MUL(t157 - t158, costab16) ;
|
||
+
|
||
+ t163 = t161 + t162;
|
||
+ t188 = MUL(t161 - t162, costab16) ; */
|
||
+ butterfly4 r6/*t93*/, r2/*t180*/, r7/*t98*/, r3/*t181*/, r4/*t159*/, r0/*187*/, r5/*t163*/, r1/*t188*/, costab16, r10, r11, lr
|
||
+
|
||
+
|
||
+/* Store away the computed butterflies:
|
||
+ sp[6-7] = t98, t93
|
||
+ sp[14-15] = t163, t159
|
||
+ sp[22-23] = t181, t180
|
||
+ sp[30-31] = t188, t187 */
|
||
+ st.d sp[6*4] , r6
|
||
+ st.d sp[14*4], r4
|
||
+ st.d sp[22*4], r2
|
||
+ st.d sp[30*4], r0
|
||
+
|
||
+/* Load {r0...r7} = { t103, t109, t102, t108, t101, t107, t100, t106 } */
|
||
+ ld.d r6, sp[4*4]
|
||
+ ld.d r4, sp[12*4]
|
||
+ ld.d r2, sp[20*4]
|
||
+ ld.d r0, sp[28*4]
|
||
+
|
||
+
|
||
+
|
||
+/* t132 = t100 + t101;
|
||
+ t166 = MUL(t100 - t101, costab8);
|
||
+
|
||
+ t136 = t106 + t107;
|
||
+ t171 = MUL(t106 - t107, costab8); */
|
||
+ butterfly2 r6/*t132*/, r4/*t166*/, r7/*t136*/, r5/*t171*/, costab8, r10, r11, lr
|
||
+
|
||
+/* t133 = t102 + t103;
|
||
+ t167 = MUL(t102 - t103, costab24);
|
||
+
|
||
+ t137 = t108 + t109;
|
||
+ t172 = MUL(t108 - t109, costab24);*/
|
||
+ butterfly2 r2/*t133*/, r0/*t167*/, r3/*t137*/, r1/*t172*/, costab24, r10, r11, lr
|
||
+
|
||
+
|
||
+/* t104 = t132 + t133;
|
||
+ t182 = MUL(t132 - t133, costab16) ;
|
||
+
|
||
+ t110 = t136 + t137;
|
||
+ t183 = MUL(t136 - t137, costab16) ;
|
||
+
|
||
+ t168 = t166 + t167;
|
||
+ t189 = MUL(t166 - t167, costab16) ;
|
||
+
|
||
+ t173 = t171 + t172;
|
||
+ t208 = MUL(t171 - t172, costab16) ; */
|
||
+ butterfly4 r6/*t104*/, r2/*t182*/, r7/*t110*/, r3/*t183*/, r4/*t168*/, r0/*189*/, r5/*t173*/, r1/*t208*/, costab16, r10, r11, lr
|
||
+
|
||
+/* Store away the computed butterflies:
|
||
+ sp[4-5] = t110, t104
|
||
+ sp[12-13] = t173, t168
|
||
+ sp[20-21] = t183, t182
|
||
+ sp[28-29] = t208, t189 */
|
||
+ st.d sp[4*4] , r6
|
||
+ st.d sp[12*4], r4
|
||
+ st.d sp[20*4], r2
|
||
+ st.d sp[28*4], r0
|
||
+
|
||
+/* Now we have the following stack
|
||
+
|
||
+ sp[0-7] = t67, t58 , t32, t191, t110, t104, t98, t93
|
||
+ sp[8-15] = t154, t150, t146, t143, t173, t168, t163, t159
|
||
+ sp[16-23] = t179, t178, t177, t192, t183, t182, t181, t180
|
||
+ sp[24-31] = t186, t185, t184, t190, t208, t189, t188, t187
|
||
+*/
|
||
+
|
||
+ /* Get slot, lo and hi from stack */
|
||
+ lddsp lr, sp[32*4 + 4] /*slot*/
|
||
+ lddsp r12, sp[32*4 + 8] /*lo*/
|
||
+ lddsp r11, sp[32*4 + 12] /*hi*/
|
||
+
|
||
+ add r12, r12, lr << 2
|
||
+ add r11, r11, lr << 2
|
||
+
|
||
+
|
||
+/* t49 = -(t67 * 2) + t32;
|
||
+ hi[14][slot] = SHIFT(t32);
|
||
+ t87 = -(t110 * 2) + t67;
|
||
+ t138 = -(t173 * 2) + t110;
|
||
+ t203 = -(t208 * 2) + t173; */
|
||
+
|
||
+ lddsp r0/*t67*/, sp[0]
|
||
+ lddsp r1/*t32*/, sp[2*4]
|
||
+ lddsp r2/*t110*/, sp[4*4]
|
||
+ lddsp r3/*t173*/, sp[12*4]
|
||
+ lddsp r5/*t208*/, sp[28*4]
|
||
+
|
||
+ sub r4/*t49*/, r1, r0 << 1
|
||
+ scale r1
|
||
+ sub r0/*t87*/, r0, r2 << 1
|
||
+ st.w r11[14*SLOTS*4], r1
|
||
+ sub r2/*t138*/, r2, r3 << 1
|
||
+ sub r1/*t203*/, r3, r5 << 1
|
||
+
|
||
+/* Live: r0 = t87, r1= t203, r2= t138, r4 = t49
|
||
+ Free: r3, r5, r6, r7, r8, r9, r10, lr */
|
||
+
|
||
+/* t68 = (t98 * 2) + t49;
|
||
+ hi[12][slot] = SHIFT(-t49);
|
||
+ t130 = -(t163 * 2) + t98;
|
||
+ t201 = -(t188 * 2) + t163;
|
||
+ t200 = -(t186 * 2) + t154;
|
||
+ t111 = (t154 * 2) + t87;
|
||
+ t77 = -(-(t87 * 2) - t68);
|
||
+ t88 = (t146 * 2) + t77;
|
||
+ t199 = -(t184 * 2) + t146;
|
||
+ hi[ 8][slot] = SHIFT(-t77);
|
||
+ hi[10][slot] = SHIFT(t68);*/
|
||
+ lddsp r3/*t98*/, sp[6*4]
|
||
+ lddsp r5/*t163*/, sp[14*4]
|
||
+ lddsp r6/*t188*/, sp[30*4]
|
||
+ lddsp r10/*t186*/, sp[24*4]
|
||
+
|
||
+ add r7/*t68*/, r4, r3 << 1
|
||
+ neg r4
|
||
+ scale r4
|
||
+ lddsp r9/*t154*/, sp[8*4]
|
||
+ sub r3/*t130*/, r3, r5 << 1
|
||
+ st.w r11[12*SLOTS*4], r4
|
||
+ sub r8/*t201*/, r5, r6 << 1
|
||
+ sub r4/*t200*/, r9, r10 << 1
|
||
+ lddsp lr/*t146*/, sp[10*4]
|
||
+ lddsp r6/*t184*/, sp[26*4]
|
||
+ add r10/*t111*/, r0, r9 << 1
|
||
+ add r5/*t77*/,r7, r0 << 1
|
||
+ add r0/*t88*/, r5, lr << 1
|
||
+ sub r6/*t199*/, lr, r6 << 1
|
||
+ neg r5
|
||
+ scale r5
|
||
+ scale r7
|
||
+ st.w r11[8*SLOTS*4], r5
|
||
+ st.w r11[10*SLOTS*4], r7
|
||
+
|
||
+/* Live: r0 = t88, r1= t203, r2= t138, r3 = t130, r4 = t200,
|
||
+ r6 = 199, r8 = t201, r10 = t111
|
||
+ Free: r5, r7, r9, lr */
|
||
+
|
||
+
|
||
+/*
|
||
+ t123 = -(-(t138 * 2) - t111);
|
||
+ t174 = (t183 * 2) + t138;
|
||
+ t99 = -(t111 * 2) + t88;
|
||
+ hi[ 6][slot] = SHIFT(t88); */
|
||
+ lddsp r5/*t183*/, sp[20*4]
|
||
+
|
||
+ add r7/*t123*/, r10, r2 << 1
|
||
+ sub r10/*t99*/, r0, r10 << 1
|
||
+ scale r0
|
||
+ add r2/*t174*/, r2, r5 << 1
|
||
+ st.w r11[6*SLOTS*4], r0
|
||
+
|
||
+/* Live: r1 = t203, r2 = t174, r3 = t130, r4 = t200,
|
||
+ r6 = t199, r7 = t123, r8 = t201, r10 = t99
|
||
+ Free: r0, r5, r9, lr */
|
||
+
|
||
+/* t112 = -(t130 * 2) + t99;
|
||
+ t164 = (t181 * 2) + t130;
|
||
+ hi[ 4][slot] = SHIFT(-t99); */
|
||
+ lddsp r0/*t181*/, sp[22*4]
|
||
+
|
||
+ sub r5/*t112*/, r10, r3 << 1
|
||
+ neg r10
|
||
+ scale r10
|
||
+ add r3/*164*/, r3, r0 << 1
|
||
+ st.w r11[4*SLOTS*4], r10
|
||
+
|
||
+/* Live: r1 = t203, r2 = t174, r3 = t164, r4 = t200,
|
||
+ r5 = t112, r6 = t199, r7 = t123, r8 = t201
|
||
+ Free: r0, r9, r10, lr */
|
||
+
|
||
+
|
||
+/* t117 = -(-(t123 * 2) - t112);
|
||
+ t139 = (t179 * 2) + t123;
|
||
+ hi[ 2][slot] = SHIFT(t112); */
|
||
+ lddsp r0/*t179*/, sp[16*4]
|
||
+
|
||
+ add r9/*t117*/, r5, r7 << 1
|
||
+ scale r5
|
||
+ add r7/*t139*/, r7, r0 << 1
|
||
+ st.w r11[2*SLOTS*4], r5
|
||
+
|
||
+/* Live: r1 = t203, r2 = t174, r3 = t164, r4 = t200,
|
||
+ r6 = t199, r7 = t139, r8 = t201, r9 = t117
|
||
+ Free: r0, r5, r10, lr */
|
||
+
|
||
+/* t155 = -(t174 * 2) + t139;
|
||
+ t204 = -(-(t203 * 2) - t174);
|
||
+ t124 = (t177 * 2) + t117;
|
||
+ hi[ 0][slot] = SHIFT(-t117);
|
||
+ t131 = -(t139 * 2) + t124;
|
||
+ lo[ 1][slot] = SHIFT(t124);*/
|
||
+ lddsp r0/*t177*/, sp[18*4]
|
||
+
|
||
+ sub r5/*t155*/, r7, r2 << 1
|
||
+ add r2/*t204*/, r2, r1 << 1
|
||
+ add r0/*t124*/, r9, r0 << 1
|
||
+ neg r9
|
||
+ scale r9
|
||
+ sub r7/*t131*/, r0, r7 << 1
|
||
+ scale r0
|
||
+ st.w r11[0*SLOTS*4], r9
|
||
+ st.w r12[1*SLOTS*4], r0
|
||
+
|
||
+/* Live: r2 = t204, r3 = t164, r4 = t200,
|
||
+ r5 = t155, r6 = t199, r7 = t131, r8 = t201
|
||
+ Free: r0, r1, r9, r10, lr */
|
||
+
|
||
+/* t140 = (t164 * 2) + t131;
|
||
+ lo[ 3][slot] = SHIFT(-t131);
|
||
+ t202 = -(-(t201 * 2) - t164); */
|
||
+ add r0/*t140*/, r7, r3 << 1
|
||
+ neg r7
|
||
+ scale r7
|
||
+ add r3/*t202*/, r3, r8 << 1
|
||
+ st.w r12[3*SLOTS*4], r7
|
||
+
|
||
+/* Live: r0 = t140, r2 = t204, r3 = t202, r4 = t200,
|
||
+ r5 = t155, r6 = t199
|
||
+ Free: r1, r7, r8, r9, r10, lr */
|
||
+
|
||
+
|
||
+/* t147 = -(-(t155 * 2) - t140);
|
||
+ lo[ 5][slot] = SHIFT(t140);
|
||
+ t175 = -(t200 * 2) + t155;
|
||
+ t156 = -(t199 * 2) + t147;
|
||
+ lo[ 7][slot] = SHIFT(-t147); */
|
||
+ add r1/*t147*/, r0, r5 << 1
|
||
+ scale r0
|
||
+ sub r5/*t175*/, r5, r4 << 1
|
||
+ sub r4/*156*/, r1, r6 << 1
|
||
+ neg r1
|
||
+ scale r1
|
||
+ st.w r12[5*SLOTS*4], r0
|
||
+ st.w r12[7*SLOTS*4], r1
|
||
+
|
||
+/* Live: r2 = t204, r3 = t202,
|
||
+ r4 = t156, r5 = t175
|
||
+ Free: r0, r1, r6, r7, r8, r9, r10, lr */
|
||
+
|
||
+
|
||
+/* t205 = -(-(t204 * 2) - t175);
|
||
+ t165 = -(t175 * 2) + t156;
|
||
+ lo[ 9][slot] = SHIFT(t156);
|
||
+ t176 = -(t202 * 2) + t165;
|
||
+ lo[11][slot] = SHIFT(-t165);
|
||
+ t206 = -(-(t205 * 2) - t176);
|
||
+ lo[15][slot] = SHIFT(-t206)
|
||
+ lo[13][slot] = SHIFT(t176) */
|
||
+ add r0/*t205*/, r5, r2 << 1
|
||
+ sub r1/*t165*/, r4, r5 << 1
|
||
+ scale r4
|
||
+ sub r3/*t176*/, r1, r3 << 1
|
||
+ st.w r12[9*SLOTS*4], r4
|
||
+ neg r1
|
||
+ scale r1
|
||
+ add r6/*t206*/, r3, r0 << 1
|
||
+ neg r6
|
||
+ scale r6
|
||
+ scale r3
|
||
+ st.w r12[11*SLOTS*4], r1
|
||
+ st.w r12[15*SLOTS*4], r6
|
||
+ st.w r12[13*SLOTS*4], r3
|
||
+
|
||
+/* t193 = -((t190 * 2) - t143)
|
||
+ hi[ 7][slot] = SHIFT(t143);
|
||
+ lo[ 8][slot] = SHIFT(-t193);
|
||
+ t82 = -(t104 * 2) + t58;
|
||
+ hi[13][slot] = SHIFT(t58);
|
||
+ t134 = -(t168 * 2) + t104;
|
||
+ t196 = -(t189 * 2) + t168; */
|
||
+
|
||
+ lddsp r0/*t190*/, sp[27*4]
|
||
+ lddsp r1/*t143*/, sp[11*4]
|
||
+ lddsp r2/*t104*/, sp[5*4]
|
||
+ lddsp r3/*t58*/, sp[1*4]
|
||
+ lddsp r4/*t168*/, sp[13*4]
|
||
+ lddsp r5/*t189*/, sp[29*4]
|
||
+ sub r0/*t193*/, r1, r0 << 1
|
||
+ neg r0
|
||
+ scale r1
|
||
+ scale r0
|
||
+ st.w r11[7*SLOTS*4], r1
|
||
+ st.w r12[8*SLOTS*4], r0
|
||
+ sub r0/*t82*/, r3, r2 << 1
|
||
+ scale r3
|
||
+ sub r2/*t134*/, r2, r4 << 1
|
||
+ sub r4/*t196*/, r4, r5 << 1
|
||
+ st.w r11[13*SLOTS*4], r3
|
||
+
|
||
+/* Live: r0 = t82, r2 = t134,
|
||
+ r4 = t196
|
||
+ Free: r1, r3, r5, r6, r7, r8, r9, r10, lr */
|
||
+
|
||
+
|
||
+
|
||
+/*
|
||
+
|
||
+ t207 = -(t185 * 2) + t150;
|
||
+ t105 = (t150 * 2) + t82;
|
||
+ hi[ 9][slot] = SHIFT(-t82);
|
||
+ t120 = -(-(t134 * 2) - t105);
|
||
+ hi[ 5][slot] = SHIFT(t105);
|
||
+ t169 = (t182 * 2) + t134;
|
||
+
|
||
+ t135 = (t178 * 2) + t120;
|
||
+ hi[ 1][slot] = SHIFT(-t120);
|
||
+ t197 = -(-(t196 * 2) - t169);
|
||
+ t151 = -(t169 * 2) + t135;
|
||
+ lo[ 2][slot] = SHIFT(t135); */
|
||
+ lddsp r1/*t185*/, sp[25*4]
|
||
+ lddsp r3/*t150*/, sp[9*4]
|
||
+ lddsp r5/*t182*/, sp[21*4]
|
||
+ lddsp r8/*t178*/, sp[17*4]
|
||
+
|
||
+ sub r6/*t207*/, r3, r1 << 1
|
||
+ add r3/*t105*/, r0, r3 << 1
|
||
+ neg r0
|
||
+ scale r0
|
||
+ add r7/*t120*/, r3, r2 << 1
|
||
+ scale r3
|
||
+ st.w r11[9*SLOTS*4], r0
|
||
+ st.w r11[5*SLOTS*4], r3
|
||
+ add r2/*t169*/, r2, r5 << 1
|
||
+ add r8/*t135*/, r7, r8 << 1
|
||
+ neg r7
|
||
+ scale r7
|
||
+ add r4/*t197*/, r2, r4 << 1
|
||
+ sub r2/*t151*/, r8, r2 << 1
|
||
+ scale r8
|
||
+ st.w r11[1*SLOTS*4], r7
|
||
+ st.w r12[2*SLOTS*4], r8
|
||
+
|
||
+/* Live: r2 = t151, r4 = t197, r6 = t207
|
||
+
|
||
+ Free: r0, r1, r3, r5, r7, r8, r9, r10, lr */
|
||
+
|
||
+
|
||
+
|
||
+/* t170 = -(t207 * 2) + t151;
|
||
+ lo[ 6][slot] = SHIFT(-t151);
|
||
+
|
||
+ t198 = -(-(t197 * 2) - t170);
|
||
+ lo[10][slot] = SHIFT(t170);
|
||
+ lo[14][slot] = SHIFT(-t198);
|
||
+
|
||
+ t127 = -(t159 * 2) + t93;
|
||
+ hi[11][slot] = SHIFT(t93);
|
||
+ t194 = -(t187 * 2) + t159; */
|
||
+ lddsp r0/*t159*/, sp[15*4]
|
||
+ lddsp r1/*t93*/, sp[7*4]
|
||
+ lddsp r3/*t187*/, sp[31*4]
|
||
+ sub r5/*t170*/, r2, r6 << 1
|
||
+ neg r2
|
||
+ scale r2
|
||
+ add r4/*t198*/,r5, r4 << 1
|
||
+ neg r4
|
||
+ scale r5
|
||
+ scale r4
|
||
+ st.w r12[6*SLOTS*4], r2
|
||
+ st.w r12[10*SLOTS*4], r5
|
||
+ st.w r12[14*SLOTS*4], r4
|
||
+ sub r7/*t127*/, r1, r0 << 1
|
||
+ scale r1
|
||
+ sub r0/*t194*/, r0, r3 << 1
|
||
+ st.w r11[11*SLOTS*4], r1
|
||
+
|
||
+
|
||
+/* Live: r0 = t194, r7 = t127
|
||
+ Free: r1, r2, r3, r4, r6, r5, r8, r9, r10, lr */
|
||
+
|
||
+/* t160 = (t180 * 2) + t127;
|
||
+ hi[ 3][slot] = SHIFT(-t127);
|
||
+ t195 = -(-(t194 * 2) - t160);
|
||
+ lo[ 4][slot] = SHIFT(t160);
|
||
+ lo[12][slot] = SHIFT(-t195);
|
||
+
|
||
+ hi[15][slot] = SHIFT(t191);
|
||
+ lo[ 0][slot] = SHIFT(t192); */
|
||
+ lddsp r1/*t180*/, sp[23*4]
|
||
+ lddsp r2/*t191*/, sp[3*4]
|
||
+ lddsp r3/*t192*/, sp[19*4]
|
||
+ add r4/*t160*/, r7, r1 << 1
|
||
+ neg r7
|
||
+ scale r7
|
||
+ add r6/*t195*/, r4, r0 << 1
|
||
+ scale r4
|
||
+ neg r6
|
||
+ scale r6
|
||
+ st.w r11[3*SLOTS*4], r7
|
||
+ st.w r12[4*SLOTS*4], r4
|
||
+ st.w r12[12*SLOTS*4], r6
|
||
+ scale r2
|
||
+ scale r3
|
||
+ st.w r11[15*SLOTS*4], r2
|
||
+ st.w r12[0*SLOTS*4], r3
|
||
+
|
||
+ sub sp, -32*4
|
||
+ ldm sp++,r0-r7, r9-r11, pc
|
||
diff --git a/fixed.h b/fixed.h
|
||
index 4b58abf..0a1350a 100644
|
||
--- a/fixed.h
|
||
+++ b/fixed.h
|
||
@@ -237,6 +237,46 @@ mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
|
||
# define MAD_F_SCALEBITS MAD_F_FRACBITS
|
||
# endif
|
||
|
||
+/* --- AVR32 ----------------------------------------------------------------- */
|
||
+
|
||
+# elif defined(FPM_AVR32)
|
||
+
|
||
+typedef signed short mad_coeff_t;
|
||
+
|
||
+struct DWstruct {int high, low;};
|
||
+
|
||
+typedef union {
|
||
+ struct DWstruct s;
|
||
+ long long ll;
|
||
+} DWunion;
|
||
+
|
||
+# define MAD_F_MLX(hi, lo, x, y) \
|
||
+ { register DWunion __res; \
|
||
+ __res.ll = (long long)x * (long long)y; \
|
||
+ /* asm ("muls.d\t%0, %1, %2" : "=r" (__res.ll) : "r" (x), "r" (y));*/ \
|
||
+ hi = __res.s.high; \
|
||
+ lo = __res.s.low; }
|
||
+
|
||
+# define MAD_F_MLA(hi, lo, x, y) \
|
||
+ { register DWunion __res; \
|
||
+ __res.s.high = hi; \
|
||
+ __res.s.low = lo; \
|
||
+ __res.ll += (long long)x * (long long)y; \
|
||
+/* asm ("macs.d\t%0, %1, %2" : "+r" (__res.ll) : "r" (x), "r" (y));*/ \
|
||
+ hi = __res.s.high; \
|
||
+ lo = __res.s.low; }
|
||
+
|
||
+
|
||
+# define MAD_F_MLN(hi, lo) \
|
||
+ asm ("neg %0\n" \
|
||
+ "acr %1\n" \
|
||
+ "neg %1" \
|
||
+ : "+r" (lo), "+r" (hi) \
|
||
+ :: "cc")
|
||
+
|
||
+
|
||
+# define MAD_F_SCALEBITS MAD_F_FRACBITS
|
||
+
|
||
/* --- ARM ----------------------------------------------------------------- */
|
||
|
||
# elif defined(FPM_ARM)
|
||
@@ -433,6 +473,8 @@ mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
|
||
*
|
||
* Pre-rounding is required to stay within the limits of compliance.
|
||
*/
|
||
+typedef signed int mad_coeff_t;
|
||
+
|
||
# if defined(OPT_SPEED)
|
||
# define mad_f_mul(x, y) (((x) >> 12) * ((y) >> 16))
|
||
# else
|
||
diff --git a/imdct_avr32.S b/imdct_avr32.S
|
||
new file mode 100644
|
||
index 0000000..d0ee6b4
|
||
--- /dev/null
|
||
+++ b/imdct_avr32.S
|
||
@@ -0,0 +1,789 @@
|
||
+/*
|
||
+ Optimized 36-point Inverse Modified Cosine Transform (IMDCT)
|
||
+ Copyright 2003-2006 Atmel Corporation.
|
||
+
|
||
+ Written by Ronny Pedersen, Atmel Norway
|
||
+
|
||
+ This program is free software; you can redistribute it and/or modify
|
||
+ it under the terms of the GNU General Public License as published by
|
||
+ the Free Software Foundation; either version 2 of the License, or
|
||
+ (at your option) any later version.
|
||
+
|
||
+ This program is distributed in the hope that it will be useful,
|
||
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
+ GNU General Public License for more details.
|
||
+
|
||
+ You should have received a copy of the GNU General Public License
|
||
+ along with this program; if not, write to the Free Software
|
||
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
+
|
||
+#define MAD_F(x) ((x + (1 << 13)) >> 14)
|
||
+
|
||
+ .public imdct36_avr32
|
||
+
|
||
+/*
|
||
+ void imdct36(mad_fixed_t const x[18], mad_fixed_t y[36])
|
||
+ {
|
||
+ mad_fixed_t tmp[18];
|
||
+ int i;
|
||
+*/
|
||
+/* DCT-IV */
|
||
+imdct36_avr32:
|
||
+ pushm r0-r7,r11,lr
|
||
+ sub sp, 4*18
|
||
+/*
|
||
+ {
|
||
+ mad_fixed_t tmp2[18];
|
||
+ int i;
|
||
+
|
||
+ /* scale[i] = 2 * cos(PI * (2 * i + 1) / (4 * 18)) */
|
||
+/*
|
||
+ static mad_fixed_t const scale[18] = {
|
||
+ MAD_F(0x1ff833fa), MAD_F(0x1fb9ea93), MAD_F(0x1f3dd120),
|
||
+ MAD_F(0x1e84d969), MAD_F(0x1d906bcf), MAD_F(0x1c62648b),
|
||
+ MAD_F(0x1afd100f), MAD_F(0x1963268b), MAD_F(0x1797c6a4),
|
||
+ MAD_F(0x159e6f5b), MAD_F(0x137af940), MAD_F(0x11318ef3),
|
||
+ MAD_F(0x0ec6a507), MAD_F(0x0c3ef153), MAD_F(0x099f61c5),
|
||
+ MAD_F(0x06ed12c5), MAD_F(0x042d4544), MAD_F(0x0165547c)
|
||
+ };
|
||
+*/
|
||
+
|
||
+ /* scaling */
|
||
+
|
||
+/*
|
||
+ for (i = 0; i < 18; i += 3) {
|
||
+ tmp2[i + 0] = mad_f_mul(x[i + 0], scale[i + 0]);
|
||
+ tmp2[i + 1] = mad_f_mul(x[i + 1], scale[i + 1]);
|
||
+ tmp2[i + 2] = mad_f_mul(x[i + 2], scale[i + 2]);
|
||
+ }
|
||
+*/
|
||
+ /* even input butterfly */
|
||
+
|
||
+/*
|
||
+ for (i = 0; i < 9; i += 3) {
|
||
+ tmp3[i + 0] = tmp2[i + 0] + tmp2[18 - (i + 0) - 1];
|
||
+ tmp3[i + 1] = tmp2[i + 1] + tmp2[18 - (i + 1) - 1];
|
||
+ tmp3[i + 2] = tmp2[i + 2] + tmp2[18 - (i + 2) - 1];
|
||
+ }
|
||
+ for (i = 0; i < 9; i += 3) {
|
||
+ tmp4[i + 0] = tmp2[i + 0] - tmp2[18 - (i + 0) - 1];
|
||
+ tmp4[i + 1] = tmp2[i + 1] - tmp2[18 - (i + 1) - 1];
|
||
+ tmp4[i + 2] = tmp2[i + 2] - tmp2[18 - (i + 2) - 1];
|
||
+ }
|
||
+*/
|
||
+
|
||
+ ld.d r8, r12[0] /*r8 = x[1], r9 = x[0]*/
|
||
+ ld.d r0, pc[scale_dctIV - .] /*r0 = {scale[2], scale[3]}, r1 = { scale[0], scale[1] }*/
|
||
+ ld.d r2, r12[2*4] /*r2 = x[3], r3 = x[2]*/
|
||
+ ld.d r4, pc[scale_dctIV - . + 14*2] /*r4 = {scale[16], scale[17]}, r5 = { scale[14], scale[15] }*/
|
||
+ mulsatrndwh.w r9/*tmp2[0]*/, r9, r1:t /*tmp2[0] = mad_f_mul(x[0], scale[0]) */
|
||
+ ld.d r6, r12[16*4] /*r6 = x[17], r7 = x[16]*/
|
||
+ mulsatrndwh.w r8/*tmp2[1]*/, r8, r1:b /*tmp2[1] = mad_f_mul(x[1], scale[1]) */
|
||
+ mulsatrndwh.w r3/*tmp2[2]*/, r3, r0:t /*tmp2[2] = mad_f_mul(x[2], scale[2]) */
|
||
+ mulsatrndwh.w r2/*tmp2[3]*/, r2, r0:b /*tmp2[3] = mad_f_mul(x[3], scale[3]) */
|
||
+ ld.d r0, r12[14*4] /*r0 = x[15], r1 = x[14]*/
|
||
+ mulsatrndwh.w r7/*tmp2[16]*/, r7, r4:t /*tmp2[16] = mad_f_mul(x[16], scale[16]) */
|
||
+ mulsatrndwh.w r6/*tmp2[17]*/, r6, r4:b /*tmp2[17] = mad_f_mul(x[17], scale[17]) */
|
||
+ mulsatrndwh.w r1/*tmp2[14]*/, r1, r5:t /*tmp2[14] = mad_f_mul(x[14], scale[14]) */
|
||
+ mulsatrndwh.w r0/*tmp2[15]*/, r0, r5:b /*tmp2[15] = mad_f_mul(x[15], scale[15]) */
|
||
+
|
||
+ ld.d r4, r12[4*4] /*r4 = x[5], r5 = x[4]*/
|
||
+
|
||
+ sub lr/*tmp4[0]*/, r9, r6
|
||
+ add r6/*tmp3[0]*/, r9, r6
|
||
+ sub r10/*tmp4[1]*/, r8, r7
|
||
+ add r7/*tmp3[1]*/, r8, r7
|
||
+ sub r9/*tmp4[2]*/, r3, r0
|
||
+ add r0/*tmp3[2]*/, r3, r0
|
||
+ sub r8/*tmp4[3]*/, r2, r1
|
||
+ add r1/*tmp3[3]*/, r2, r1
|
||
+
|
||
+ ld.d r2, pc[scale_dctIV - . + 4*2] /*r2 = {scale[6], scale[7]}, r3 = { scale[4], scale[5] }*/
|
||
+
|
||
+ stm --sp, r8-r10, lr /*sp[0] = tmp4[0],sp[1] = tmp4[1],
|
||
+ sp[2] = tmp4[2],sp[3] = tmp4[3] */
|
||
+
|
||
+ /* Registers used: r0 = tmp3[2], r1 = tmp3[3], r6 = tmp3[0], r7 = tmp3[1], r12 = x
|
||
+ Free registers: r2-r5, r8-r11, lr
|
||
+ */
|
||
+ ld.d r8, r12[6*4] /*r8 = x[7], r9 = x[6]*/
|
||
+ ld.d r10, pc[scale_dctIV - . + 10*2] /*r10 = {scale[12], scale[13]}, r11 = { scale[10], scale[11] }*/
|
||
+ mulsatrndwh.w r5/*tmp2[4]*/, r5, r3:t /*tmp2[4] = mad_f_mul(x[4], scale[4]) */
|
||
+ mulsatrndwh.w r4/*tmp2[5]*/, r4, r3:b /*tmp2[5] = mad_f_mul(x[5], scale[5]) */
|
||
+ mulsatrndwh.w r9/*tmp2[6]*/, r9, r2:t /*tmp2[6] = mad_f_mul(x[6], scale[6]) */
|
||
+ mulsatrndwh.w r8/*tmp2[7]*/, r8, r2:b /*tmp2[7] = mad_f_mul(x[7], scale[7]) */
|
||
+
|
||
+ ld.d r2, r12[12*4] /*r2 = x[13], r3 = x[12]*/
|
||
+ ld.w lr, r12[11*4] /*lr = x[11] */
|
||
+ mulsatrndwh.w r3/*tmp2[12]*/, r3, r10:t /*tmp2[12] = mad_f_mul(x[12], scale[12]) */
|
||
+ mulsatrndwh.w r2/*tmp2[13]*/, r2, r10:b /*tmp2[13] = mad_f_mul(x[13], scale[13]) */
|
||
+ ld.w r10, r12[10*4] /*r10 = x[10] */
|
||
+ mulsatrndwh.w lr/*tmp2[11]*/, lr, r11:b /*tmp2[11] = mad_f_mul(x[11], scale[11]) */
|
||
+ mulsatrndwh.w r10/*tmp2[10]*/, r10, r11:t /*tmp2[10] = mad_f_mul(x[10], scale[10]) */
|
||
+
|
||
+ sub r11/*tmp4[4]*/, r5, r2
|
||
+ add r2/*tmp3[4]*/, r5, r2
|
||
+ sub r5/*tmp4[5]*/, r4, r3
|
||
+ add r3/*tmp3[5]*/, r4, r3
|
||
+ sub r4/*tmp4[6]*/, r9, lr
|
||
+ add lr/*tmp3[6]*/, r9, lr
|
||
+ sub r9/*tmp4[7]*/, r8, r10
|
||
+ add r10/*tmp3[7]*/, r8, r10
|
||
+ lddpc r8, scale_dctIV + 8*2 /*r8 = {scale[8], scale[9]} */
|
||
+
|
||
+ stm --sp, r4, r5, r9, r11 /*sp[0] = tmp4[4],sp[1] = tmp4[7],
|
||
+ sp[2] = tmp4[5],sp[3] = tmp4[6] */
|
||
+ ld.d r4, r12[8*4] /*r4 = x[9], r5 = x[8]*/
|
||
+ mulsatrndwh.w r5/*tmp2[8]*/, r5, r8:t /*tmp2[8] = mad_f_mul(x[8], scale[8]) */
|
||
+ mulsatrndwh.w r4/*tmp2[9]*/, r4, r8:b /*tmp2[9] = mad_f_mul(x[9], scale[9]) */
|
||
+ sub r9/*tmp4[8]*/, r5, r4
|
||
+ add r5/*tmp3[8]*/, r5, r4
|
||
+
|
||
+ st.w --sp, r9 /* sp[0] = tmp4[8] */
|
||
+
|
||
+ /* Registers used:
|
||
+
|
||
+ r0=tmp3[2], r1=tmp3[3], r2=tmp3[4], r3=tmp3[5], r5=tmp3[8], r6 = tmp3[0],
|
||
+ r7 = tmp3[1], r10=tmp3[7], lr=tmp3[6]
|
||
+ Free registers:
|
||
+ r4, r8, r9, r11, r12
|
||
+ */
|
||
+
|
||
+
|
||
+ /* SDCT-II */
|
||
+/*
|
||
+
|
||
+ {
|
||
+ mad_fixed_t tmp3[9];
|
||
+ int i;
|
||
+*/
|
||
+ /* scale[i] = 2 * cos(PI * (2 * i + 1) / (2 * 18)) */
|
||
+/*
|
||
+ static mad_fixed_t const scale[9] = {
|
||
+ MAD_F(0x1fe0d3b4), MAD_F(0x1ee8dd47), MAD_F(0x1d007930),
|
||
+ MAD_F(0x1a367e59), MAD_F(0x16a09e66), MAD_F(0x125abcf8),
|
||
+ MAD_F(0x0d8616bc), MAD_F(0x08483ee1), MAD_F(0x02c9fad7)
|
||
+ };
|
||
+*/
|
||
+ /* divide the 18-point SDCT-II into two 9-point SDCT-IIs */
|
||
+
|
||
+
|
||
+ /* fastdct */
|
||
+
|
||
+/*
|
||
+ {
|
||
+ mad_fixed_t a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12;
|
||
+ mad_fixed_t a13, a14, a15, a16, a17, a18, a19, a20, a21, a22, a23, a24, a25;
|
||
+ mad_fixed_t m0, m1, m2, m3, m4, m5, m6, m7;
|
||
+*/
|
||
+// enum {
|
||
+// c0 = MAD_F(0x1f838b8d), /* 2 * cos( 1 * PI / 18) */
|
||
+// c1 = MAD_F(0x1bb67ae8), /* 2 * cos( 3 * PI / 18) */
|
||
+// c2 = MAD_F(0x18836fa3), /* 2 * cos( 4 * PI / 18) */
|
||
+// c3 = MAD_F(0x1491b752), /* 2 * cos( 5 * PI / 18) */
|
||
+// c4 = MAD_F(0x0af1d43a), /* 2 * cos( 7 * PI / 18) */
|
||
+// c5 = MAD_F(0x058e86a0), /* 2 * cos( 8 * PI / 18) */
|
||
+// c6 = -MAD_F(0x1e11f642) /* 2 * cos(16 * PI / 18) */
|
||
+// };
|
||
+
|
||
+/*
|
||
+ a2 = tmp3[6] + tmp3[2];
|
||
+ a6 = tmp3[8] + tmp3[0];
|
||
+ a11 = a2 - a6;
|
||
+ m5 = mad_f_mul(a11, -c6) ;
|
||
+ a4 = tmp3[1] + tmp3[7];
|
||
+
|
||
+ a18 = tmp3[4] + a4;
|
||
+ a19 = -2 * tmp3[4] + a4;
|
||
+
|
||
+ a0 = tmp3[3] + tmp3[5];
|
||
+
|
||
+*/
|
||
+ add r11/*a4*/, r7, r10
|
||
+ add r12/*a18*/, r2, r11
|
||
+ sub r11/*a19*/, r11, r2<<1
|
||
+
|
||
+ add r4/*a2*/, lr, r0
|
||
+ add r8/*a6*/, r5, r6
|
||
+ sub r9/*a11*/, r4, r8
|
||
+
|
||
+ st.d --sp, r0 /* sp[0] = tmp3[3], sp1[1] = tmp3[2]*/
|
||
+
|
||
+ mov r2, MAD_F(0x1e11f642)
|
||
+ mulsatrndwh.w r9/*m5*/, r9, r2:b
|
||
+
|
||
+ add r2/*a0*/, r1, r3
|
||
+
|
||
+ /* Registers used:
|
||
+
|
||
+ r2=a0, r3=tmp3[5], r4=a2, r5=tmp3[8], r6 = tmp3[0],
|
||
+ r7 = tmp3[1], r8=a6, r10=tmp3[7], r9=m5, r11=a19, r12=a18,lr=tmp3[6]
|
||
+ Free registers:
|
||
+ r0, r1
|
||
+ */
|
||
+
|
||
+/*
|
||
+ a8 = a0 + a2;
|
||
+ a12 = a8 + a6;
|
||
+ a10 = a0 - a6;
|
||
+ a9 = a0 - a2;
|
||
+ m7 = mad_f_mul(a9, -c2) ;
|
||
+ m6 = mad_f_mul(a10, -c5) ;
|
||
+*/
|
||
+
|
||
+ add r0/*a8*/, r2, r4
|
||
+ add r0/*a12*/, r8
|
||
+ rsub r8/*a10*/, r2
|
||
+ sub r2/*a9*/, r4
|
||
+ mov r1, -MAD_F(0x18836fa3)
|
||
+ mulsatrndwh.w r2/*m7*/, r2, r1:b
|
||
+ mov r1, -MAD_F(0x058e86a0)
|
||
+ mulsatrndwh.w r8/*m6*/, r8, r1:b
|
||
+
|
||
+ /* Registers used:
|
||
+
|
||
+ r0=a12, r2=m7, r3=tmp3[5], r5=tmp3[8], r6 = tmp3[0],
|
||
+ r7 = tmp3[1], r8=m6, r10=tmp3[7], r9=m5, r11=a19, r12=a18,lr=tmp3[6]
|
||
+ Free registers:
|
||
+ r1, r4
|
||
+ */
|
||
+
|
||
+
|
||
+/*
|
||
+ a21 = -a19 - (m5 << 1);
|
||
+ tmp[ 8] = a21 - (m6 << 1);
|
||
+
|
||
+ a20 = a19 - (m5 << 1);
|
||
+ tmp[ 4] = (m7 << 1) + a20;
|
||
+ a22 = -a19 + (m6 << 1);
|
||
+ tmp[16] = a22 + (m7 << 1);
|
||
+ tmp[ 0] = a18 + a12;
|
||
+ tmp[12] = a12 - 2 * a18;
|
||
+*/
|
||
+ add r1/*a21*/, r11, r9 << 1
|
||
+ neg r1
|
||
+ sub r1/*tmp[8]*/, r1, r8 << 1
|
||
+ stdsp sp[4*11/*tmp3[..] on the stack*/ + 8*4], r1
|
||
+ sub r4/*a20*/, r11, r9 << 1
|
||
+ add r4/*tmp[4]*/, r4, r2 << 1
|
||
+ stdsp sp[4*11/*tmp3[..] on the stack*/ + 4*4], r4
|
||
+ neg r11
|
||
+ add r1/*a22*/, r11, r8 << 1
|
||
+ add r1/*tmp[16]*/, r1, r2 << 1
|
||
+ stdsp sp[4*11/*tmp3[..] on the stack*/ + 16*4], r1
|
||
+ add r4, r12, r0
|
||
+ sub r1, r0, r12 << 1
|
||
+ stdsp sp[4*11/*tmp3[..] on the stack*/ + 0*4], r4
|
||
+ stdsp sp[4*11/*tmp3[..] on the stack*/ + 12*4], r1
|
||
+
|
||
+ ld.d r0, sp++
|
||
+
|
||
+ /* Registers used:
|
||
+
|
||
+ r0 = tmp3[2], r1 = tmp3[3], r3=tmp3[5], r5=tmp3[8], r6 = tmp3[0],
|
||
+ r7 = tmp3[1], r10=tmp3[7], r11=a19, lr=tmp3[6]
|
||
+ Free registers:
|
||
+ r2,r4,r8,r9,r12
|
||
+ */
|
||
+
|
||
+/*
|
||
+ a5 = tmp3[1] - tmp3[7];
|
||
+ a7 = tmp3[8] - tmp3[0];
|
||
+ a3 = tmp3[6] - tmp3[2];
|
||
+ a1 = tmp3[3] - tmp3[5];
|
||
+ a13 = a1 - a3;
|
||
+ a14 = a13 + a7;
|
||
+ m3 = mad_f_mul(a14, -c1) ;
|
||
+ m4 = mad_f_mul(a5, -c1) ;
|
||
+ tmp[ 6] = m3 << 1;
|
||
+*/
|
||
+ sub r7/*a5*/, r10
|
||
+ sub r2/*a7*/, r5, r6
|
||
+ sub r4/*a3*/, lr, r0
|
||
+ sub r8/*a1*/, r1, r3
|
||
+ sub r9/*a13*/, r8, r4
|
||
+ add r12/*a14*/, r9, r2
|
||
+ mov r0, -MAD_F(0x1bb67ae8)
|
||
+ mulsatrndwh.w r12/*m3*/, r12, r0:b
|
||
+ mulsatrndwh.w r7/*m4*/, r7, r0:b
|
||
+ lsl r12, 1
|
||
+ stdsp sp[4*9/*tmp3[..] on the stack*/ + 6*4], r12
|
||
+
|
||
+ /* Registers used:
|
||
+ r2 = a7, r4 = a3, r7 = m4, r8 = a1, r12 = m3
|
||
+
|
||
+ Free registers:
|
||
+ r0, r1, r3, r5, r6, r10, r9, r11, lr
|
||
+ */
|
||
+
|
||
+
|
||
+/*
|
||
+ a15 = a3 + a7;
|
||
+ m2 = mad_f_mul(a15, -c4) ;
|
||
+ a17 = a1 + a3;
|
||
+ m0 = mad_f_mul(a17, -c3) ;
|
||
+ a23 = (m4 << 1) + (m2 << 1);
|
||
+ tmp[14] = a23 + (m0 << 1); */
|
||
+ add r0/*a15*/, r4, r2
|
||
+ mov r1, -MAD_F(0x0af1d43a)
|
||
+ mulsatrndwh.w r0/*m2*/, r0, r1:b
|
||
+ mov r3, -MAD_F(0x1491b752)
|
||
+ add r5/*a17*/, r8, r4
|
||
+ mulsatrndwh.w r5/*m0*/, r5, r3:b
|
||
+ lsl r7, 1
|
||
+ add r6/*a23*/, r7, r0 << 1
|
||
+ add r6/*tmp[14]*/, r6, r5 << 1
|
||
+ stdsp sp[4*9/*tmp3[..] on the stack*/ + 14*4], r6
|
||
+
|
||
+ /* Registers used:
|
||
+ r0 = m2, r2 = a7, r5 = m0, r7 = m4, r8 = a1
|
||
+
|
||
+ Free registers:
|
||
+ r1, r3, r4, r6, r10, r9, r11, lr
|
||
+ */
|
||
+
|
||
+/*
|
||
+ a16 = a1 - a7;
|
||
+ m1 = mad_f_mul(a16, -c0) ;
|
||
+ a24 = (m4 << 1) - (m2 << 1);
|
||
+ tmp[10] = a24 - (m1 << 1);
|
||
+
|
||
+ a25 = (m4 << 1) + (m1 << 1);
|
||
+ tmp[ 2] = (m0 << 1) - a25;
|
||
+*/
|
||
+ sub r3/*a16*/, r8, r2
|
||
+ mov r4, -MAD_F(0x1f838b8d)
|
||
+ mulsatrndwh.w r3/*m1*/, r3, r4:b
|
||
+ sub r1/*a24*/, r7, r0 << 1
|
||
+ sub r1/*tmp[10]*/, r1, r3 << 1
|
||
+ stdsp sp[4*9/*tmp3[..] on the stack*/ + 10*4], r1
|
||
+ add r7/*a25*/, r7, r3 << 1
|
||
+ sub r7, r7, r5 << 1
|
||
+ neg r7
|
||
+ stdsp sp[4*9/*tmp3[..] on the stack*/ + 2*4], r7
|
||
+
|
||
+
|
||
+
|
||
+
|
||
+ /* output to every other slot for convenience */
|
||
+
|
||
+ /*} */
|
||
+ /* End fastdct */
|
||
+
|
||
+ /* odd input butterfly and scaling */
|
||
+
|
||
+
|
||
+ /* On the stack:
|
||
+ sp[0] = tmp4[8], sp[1] = tmp4[4],sp[2] = tmp4[7], sp[3] = tmp4[5],sp[4] = tmp4[6]
|
||
+ sp[5] = tmp4[0], sp[6] = tmp4[1],sp[7] = tmp4[2],sp[8] = tmp4[3]
|
||
+ */
|
||
+
|
||
+ /*
|
||
+ tmp3[0] = mad_f_mul(tmp4[0], scale[0]);
|
||
+ tmp3[1] = mad_f_mul(tmp4[1], scale[1]) << 1;
|
||
+ tmp3[2] = mad_f_mul(tmp4[2], scale[2]);
|
||
+ tmp3[3] = mad_f_mul(tmp4[3], scale[3]) << 1;
|
||
+ tmp3[4] = mad_f_mul(tmp4[4], scale[4]);
|
||
+ tmp3[5] = mad_f_mul(tmp4[5], scale[5]);
|
||
+ tmp3[6] = mad_f_mul(tmp4[6], scale[6]) << 1;
|
||
+ tmp3[7] = mad_f_mul(tmp4[7], scale[7]);
|
||
+ tmp3[8] = mad_f_mul(tmp4[8], scale[8]) << 1;
|
||
+ */
|
||
+ /* Registers used:
|
||
+ r1 = tmp4[3], r2 = tmp4[2], r3 = tmp4[1], r4 = tmp4[0], r7 = tmp4[6]
|
||
+ r10 = tmp4[5], r11 = tmp4[7], r12 = tmp4[4], lr = tmp4[8]
|
||
+
|
||
+ Free registers:
|
||
+ r0, r5, r6, r8, r9
|
||
+ */
|
||
+ ld.d r8, pc[ scale_sdctII - . + 4*2] /* r8 = { scale[6], scale[7] }, r9 = { scale[4], scale[5]} */
|
||
+ ldm sp++, r1, r2, r3, r4, r7, r10, r11, r12, lr
|
||
+ mov r5, MAD_F(0x02c9fad7) /* r3 = scale[8] */
|
||
+ mulsatrndwh.w r5/*tmp3[8]*/, lr, r5:b
|
||
+ mulsatrndwh.w lr/*tmp3[6]*/, r7, r8:t
|
||
+ ld.d r6, pc[ scale_sdctII - . + 0*2] /* r6 = { scale[2], scale[3] }, r7 = { scale[0], scale[1]} */
|
||
+ lsl lr, 1
|
||
+ lsl r5, 1
|
||
+ mulsatrndwh.w r0/*tmp3[2]*/, r2, r6:t
|
||
+ mulsatrndwh.w r1/*tmp3[3]*/, r1, r6:b
|
||
+ mulsatrndwh.w r6/*tmp3[0]*/, r4, r7:t
|
||
+ mulsatrndwh.w r7/*tmp3[1]*/, r3, r7:b
|
||
+ mulsatrndwh.w r3/*tmp3[5]*/, r10, r9:b
|
||
+ mulsatrndwh.w r2/*tmp3[4]*/, r12, r9:t
|
||
+ mulsatrndwh.w r9/*tmp3[7]*/, r11, r8:b
|
||
+ lsl r1, 1
|
||
+ lsl r7, 1
|
||
+
|
||
+
|
||
+ /* fastdct */
|
||
+
|
||
+/*
|
||
+ {
|
||
+ mad_fixed_t a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12;
|
||
+ mad_fixed_t a13, a14, a15, a16, a17, a18, a19, a20, a21, a22, a23, a24, a25;
|
||
+ mad_fixed_t m0, m1, m2, m3, m4, m5, m6, m7;
|
||
+*/
|
||
+// enum {
|
||
+// c0 = MAD_F(0x1f838b8d), /* 2 * cos( 1 * PI / 18) */
|
||
+// c1 = MAD_F(0x1bb67ae8), /* 2 * cos( 3 * PI / 18) */
|
||
+// c2 = MAD_F(0x18836fa3), /* 2 * cos( 4 * PI / 18) */
|
||
+// c3 = MAD_F(0x1491b752), /* 2 * cos( 5 * PI / 18) */
|
||
+// c4 = MAD_F(0x0af1d43a), /* 2 * cos( 7 * PI / 18) */
|
||
+// c5 = MAD_F(0x058e86a0), /* 2 * cos( 8 * PI / 18) */
|
||
+// c6 = -MAD_F(0x1e11f642) /* 2 * cos(16 * PI / 18) */
|
||
+// };
|
||
+
|
||
+ /* Registers used:
|
||
+
|
||
+ r0=tmp3[2], r1=tmp3[3], r2=tmp3[4], r3=tmp3[5], r5=tmp3[8], r6 = tmp3[0],
|
||
+ r7 = tmp3[1], r9=tmp3[7], lr=tmp3[6]
|
||
+ Free registers:
|
||
+ r4, r8, r10, r11, r12
|
||
+ */
|
||
+
|
||
+/*
|
||
+ a2 = tmp3[6] + (tmp3[2] << 1);
|
||
+ a6 = tmp3[8] + (tmp3[0] << 1);
|
||
+ a11 = a2 - a6;
|
||
+ m5 = mad_f_mul(a11, c6) ;
|
||
+ a4 = tmp3[1] + (tmp3[7] << 1);
|
||
+
|
||
+ a18 = (tmp3[4] << 1) + a4;
|
||
+ a19 = -2 * (tmp3[4] << 1) + a4;
|
||
+
|
||
+ a0 = tmp3[3] + (tmp3[5] << 1);
|
||
+
|
||
+*/
|
||
+ add r11/*a4*/, r7, r9 << 1
|
||
+ add r12/*a18*/, r11, r2 << 1
|
||
+ sub r11/*a19*/, r11, r2 << 2
|
||
+
|
||
+ add r4/*a2*/, lr, r0 << 1
|
||
+ add r8/*a6*/, r5, r6 << 1
|
||
+ sub r10/*a11*/, r4, r8
|
||
+
|
||
+ st.d --sp, r0 /* sp[0] = tmp3[3], sp1[1] = tmp3[2]*/
|
||
+
|
||
+ mov r2, -MAD_F(0x1e11f642)
|
||
+ mulsatrndwh.w r10/*m5*/, r10, r2:b
|
||
+
|
||
+ add r2/*a0*/, r1, r3 << 1
|
||
+
|
||
+ /* Registers used:
|
||
+
|
||
+ r2=a0, r3=tmp3[5], r4=a2, r5=tmp3[8], r6 = tmp3[0],
|
||
+ r7 = tmp3[1], r8=a6, r9=tmp3[7], r10=m5, r11=a19, r12=a18,lr=tmp3[6]
|
||
+ Free registers:
|
||
+ r0, r1
|
||
+ */
|
||
+
|
||
+/*
|
||
+ a8 = a0 + a2;
|
||
+ a12 = a8 + a6;
|
||
+ a10 = a0 - a6;
|
||
+ a9 = a0 - a2;
|
||
+ m7 = mad_f_mul(a9, -c2) ;
|
||
+ m6 = mad_f_mul(a10, -c5) ;
|
||
+*/
|
||
+
|
||
+ add r0/*a8*/, r2, r4
|
||
+ add r0/*a12*/, r8
|
||
+ rsub r8/*a10*/, r2
|
||
+ sub r2/*a9*/, r4
|
||
+ mov r1, -MAD_F(0x18836fa3)
|
||
+ mulsatrndwh.w r2/*m7*/, r2, r1:b
|
||
+ mov r1, -MAD_F(0x058e86a0)
|
||
+ mulsatrndwh.w r8/*m6*/, r8, r1:b
|
||
+
|
||
+ /* Registers used:
|
||
+
|
||
+ r0=a12, r2=m7, r3=tmp3[5], r5=tmp3[8], r6 = tmp3[0],
|
||
+ r7 = tmp3[1], r8=m6, r9=tmp3[7], r10=m5, r11=a19, r12=a18,lr=tmp3[6]
|
||
+ Free registers:
|
||
+ r1, r4
|
||
+ */
|
||
+
|
||
+
|
||
+/*
|
||
+ a21 = -a19 + (m5 << 1);
|
||
+ tmp[ 9] = a21 - (m6 << 1);
|
||
+
|
||
+ a20 = -(-a19 - (m5 << 1));
|
||
+ tmp[ 5] = (m7 << 1) + a20;
|
||
+ a22 = -a19 + (m6 << 1);
|
||
+ tmp[17] = a22 + (m7 << 1);
|
||
+ tmp[ 1] = a18 + a12;
|
||
+ tmp[13] = a12 - 2 * a18;
|
||
+*/
|
||
+ sub r1/*a21*/, r11, r10 << 1
|
||
+ neg r1
|
||
+ sub r1/*tmp[9]*/, r1, r8 << 1
|
||
+ stdsp sp[4*2/*tmp3[..] on the stack*/ + 9*4], r1
|
||
+ add r4/*a20*/, r11, r10 << 1
|
||
+ add r4/*tmp[5]*/, r4, r2 << 1
|
||
+ stdsp sp[4*2/*tmp3[..] on the stack*/ + 5*4], r4
|
||
+ neg r11
|
||
+ add r1/*a22*/, r11, r8 << 1
|
||
+ add r1/*tmp[17]*/, r1, r2 << 1
|
||
+ stdsp sp[4*2/*tmp3[..] on the stack*/ + 17*4], r1
|
||
+ add r4, r12, r0
|
||
+ sub r1, r0, r12 << 1
|
||
+ stdsp sp[4*2/*tmp3[..] on the stack*/ + 1*4], r4
|
||
+ stdsp sp[4*2/*tmp3[..] on the stack*/ + 13*4], r1
|
||
+
|
||
+ ld.d r0, sp++
|
||
+
|
||
+ /* Registers used:
|
||
+
|
||
+ r0 = tmp3[2], r1 = tmp3[3], r3=tmp3[5], r5=tmp3[8], r6 = tmp3[0],
|
||
+ r7 = tmp3[1], r9=tmp3[7], r11=a19, lr=tmp3[6]
|
||
+ Free registers:
|
||
+ r2,r4,r8,r10,r12
|
||
+ */
|
||
+
|
||
+/*
|
||
+ a5 = tmp3[1] - (tmp3[7] << 1);
|
||
+ a7 = tmp3[8] - (tmp3[0] << 1);
|
||
+ a3 = tmp3[6] - (tmp3[2] << 1);
|
||
+ a1 = tmp3[3] - (tmp3[5] << 1);
|
||
+ a13 = a1 - a3;
|
||
+ a14 = a13 + a7;
|
||
+ m3 = mad_f_mul(a14, -c1) ;
|
||
+ m4 = mad_f_mul(a5, -c1) ;
|
||
+ tmp[ 7] = m3 << 1;
|
||
+*/
|
||
+ sub r7/*a5*/, r7, r9 << 1
|
||
+ sub r2/*a7*/, r5, r6 << 1
|
||
+ sub r4/*a3*/, lr, r0 << 1
|
||
+ sub r8/*a1*/, r1, r3 << 1
|
||
+ sub r10/*a13*/, r8, r4
|
||
+ add r12/*a14*/, r10, r2
|
||
+ mov r0, -MAD_F(0x1bb67ae8)
|
||
+ mulsatrndwh.w r12/*m3*/, r12, r0:b
|
||
+ mulsatrndwh.w r7/*m4*/, r7, r0:b
|
||
+ lsl r12, 1
|
||
+ stdsp sp[7*4], r12
|
||
+
|
||
+ /* Registers used:
|
||
+ r2 = a7, r4 = a3, r7 = m4, r8 = a1, r12 = m3
|
||
+
|
||
+ Free registers:
|
||
+ r0, r1, r3, r5, r6, r9, r10, r11, lr
|
||
+ */
|
||
+
|
||
+
|
||
+/*
|
||
+ a15 = a3 + a7;
|
||
+ m2 = mad_f_mul(a15, -c4) ;
|
||
+ a17 = a1 + a3;
|
||
+ m0 = mad_f_mul(a17, -c3) ;
|
||
+ a23 = (m4 << 1) + (m2 << 1);
|
||
+ tmp[15] = a23 + (m0 << 1); */
|
||
+ add r0/*a15*/, r4, r2
|
||
+ mov r1, -MAD_F(0x0af1d43a)
|
||
+ mulsatrndwh.w r0/*m2*/, r0, r1:b
|
||
+ mov r3, -MAD_F(0x1491b752)
|
||
+ add r5/*a17*/, r8, r4
|
||
+ mulsatrndwh.w r5/*m0*/, r5, r3:b
|
||
+ lsl r7, 1
|
||
+ add r6/*a23*/, r7, r0 << 1
|
||
+ add r6/*tmp[15]*/, r6, r5 << 1
|
||
+ stdsp sp[15*4], r6
|
||
+
|
||
+ /* Registers used:
|
||
+ r0 = m2, r2 = a7, r5 = m0, r7 = m4, r8 = a1
|
||
+
|
||
+ Free registers:
|
||
+ r1, r3, r4, r6, r9, r10, r11, lr
|
||
+ */
|
||
+
|
||
+/*
|
||
+ a16 = a1 - a7;
|
||
+ m1 = mad_f_mul(a16, -c0) ;
|
||
+ a24 = (m4 << 1) - (m2 << 1);
|
||
+ tmp[11] = a24 - (m1 << 1);
|
||
+
|
||
+ a25 = (m4 << 1) + (m1 << 1);
|
||
+ tmp[ 3] = (m0 << 1) - a25;
|
||
+*/
|
||
+ sub r3/*a16*/, r8, r2
|
||
+ mov r4, -MAD_F(0x1f838b8d)
|
||
+ mulsatrndwh.w r3/*m1*/, r3, r4:b
|
||
+ sub r1/*a24*/, r7, r0 << 1
|
||
+ sub r1/*tmp[11]*/, r1, r3 << 1
|
||
+ stdsp sp[11*4], r1
|
||
+ add r7/*a25*/, r7, r3 << 1
|
||
+ sub r7, r7, r5 << 1
|
||
+ neg r7
|
||
+ lddsp r12, sp[4*18+4] /* Get y from stack */
|
||
+ stdsp sp[3*4], r7
|
||
+
|
||
+
|
||
+ /* output to every other slot for convenience */
|
||
+
|
||
+ /* End fastdct */
|
||
+
|
||
+ /* output accumulation */
|
||
+
|
||
+/* for (i = 3; i < 18; i += 8) {
|
||
+ tmp[i + 0] -= tmp[(i + 0) - 2];
|
||
+ tmp[i + 2] -= tmp[(i + 2) - 2];
|
||
+ tmp[i + 4] -= tmp[(i + 4) - 2];
|
||
+ tmp[i + 6] -= tmp[(i + 6) - 2];
|
||
+ }
|
||
+ }
|
||
+*/
|
||
+
|
||
+/* End SDCT-II */
|
||
+
|
||
+
|
||
+
|
||
+ /* scale reduction and output accumulation */
|
||
+
|
||
+/*
|
||
+ for (i = 1; i < 17; i += 4) {
|
||
+ tmp[i + 0] = tmp[i + 0] - tmp[(i + 0) - 1];
|
||
+ tmp[i + 1] = tmp[i + 1] - tmp[(i + 1) - 1];
|
||
+ tmp[i + 2] = tmp[i + 2] - tmp[(i + 2) - 1];
|
||
+ tmp[i + 3] = tmp[i + 3] - tmp[(i + 3) - 1];
|
||
+ }
|
||
+ tmp[17] = tmp[17] - tmp[16];
|
||
+ }
|
||
+*/
|
||
+/* End DCT-IV */
|
||
+
|
||
+
|
||
+ /* convert 18-point DCT-IV to 36-point IMDCT */
|
||
+
|
||
+/*
|
||
+ for (i = 0; i < 9; i += 3) {
|
||
+ y[i + 0] = tmp[9 + (i + 0)];
|
||
+ y[i + 1] = tmp[9 + (i + 1)];
|
||
+ y[i + 2] = tmp[9 + (i + 2)];
|
||
+ }
|
||
+ for (i = 9; i < 27; i += 3) {
|
||
+ y[i + 0] = -tmp[36 - (9 + (i + 0)) - 1];
|
||
+ y[i + 1] = -tmp[36 - (9 + (i + 1)) - 1];
|
||
+ y[i + 2] = -tmp[36 - (9 + (i + 2)) - 1];
|
||
+ }
|
||
+ for (i = 27; i < 36; i += 3) {
|
||
+ y[i + 0] = -tmp[(i + 0) - 27];
|
||
+ y[i + 1] = -tmp[(i + 1) - 27];
|
||
+ y[i + 2] = -tmp[(i + 2) - 27];
|
||
+ }
|
||
+ }
|
||
+*/
|
||
+
|
||
+ /* Registers used:
|
||
+ r0 = tmp[8], r1 = tmp[7], r2 = tmp[6], r3 = tmp[5], r4 = tmp[4]
|
||
+ r5 = tmp[3], r6 = tmp[2], r7 = tmp[1], r8 = tmp[0], r12 = y
|
||
+
|
||
+ Free registers:
|
||
+ r9, r10, r11, lr
|
||
+ */
|
||
+
|
||
+ ldm sp++, r0-r8 /* Get tmp[0]-tmp[8] from stack */
|
||
+ sub r5, r7 /* tmp[3] -= tmp[1]*/
|
||
+ sub r3, r5 /* tmp[5] -= tmp[3]*/
|
||
+ sub r1, r3 /* tmp[7] -= tmp[5]*/
|
||
+
|
||
+ sub r7, r8 /* tmp[1] -= tmp[0]*/
|
||
+ sub r6, r7 /* tmp[2] -= tmp[1]*/
|
||
+ sub r5, r6 /* tmp[3] -= tmp[2]*/
|
||
+ neg r8
|
||
+ st.w r12[26*4], r8 /* y[26] = -tmp[0] */
|
||
+ st.w r12[27*4], r8 /* y[27] = -tmp[0] */
|
||
+ neg r7
|
||
+ neg r6
|
||
+ st.w r12[25*4], r7 /* y[25] = -tmp[1] */
|
||
+ st.w r12[24*4], r6 /* y[24] = -tmp[2] */
|
||
+ st.d r12[28*4], r6 /* y[28] = -tmp[1], y[29] = -tmp[2]*/
|
||
+
|
||
+ sub r4, r5 /* tmp[4] -= tmp[3]*/
|
||
+ sub r3, r4 /* tmp[5] -= tmp[4]*/
|
||
+ neg r5
|
||
+ neg r4
|
||
+ st.w r12[23*4], r5 /* y[23] = -tmp[3] */
|
||
+ st.w r12[22*4], r4 /* y[22] = -tmp[4] */
|
||
+ st.d r12[30*4], r4 /* y[30] = -tmp[3], y[31] = -tmp[4]*/
|
||
+
|
||
+ ldm sp++, r4-r11,lr /* Get tmp[9]-tmp[17] from stack */
|
||
+
|
||
+ sub r2, r3 /* tmp[6] -= tmp[5]*/
|
||
+
|
||
+ sub lr, r1 /* tmp[9] -= tmp[7]*/
|
||
+ sub r10, lr /* tmp[11] -= tmp[9]*/
|
||
+ sub r8, r10 /* tmp[13] -= tmp[11]*/
|
||
+ sub r6, r8 /* tmp[15] -= tmp[13]*/
|
||
+ sub r4, r6 /* tmp[17] -= tmp[15]*/
|
||
+
|
||
+ sub r1, r2 /* tmp[7] -= tmp[6]*/
|
||
+ sub r0, r1 /* tmp[8] -= tmp[7]*/
|
||
+ neg r3
|
||
+ neg r2
|
||
+ st.w r12[21*4], r3 /* y[21] = -tmp[5] */
|
||
+ st.w r12[20*4], r2 /* y[20] = -tmp[6] */
|
||
+ st.d r12[32*4], r2 /* y[32] = -tmp[5], y[33] = -tmp[6]*/
|
||
+
|
||
+ sub lr, r0 /* tmp[9] -= tmp[8]*/
|
||
+ sub r11, lr /* tmp[10] -= tmp[9]*/
|
||
+ neg r1
|
||
+ neg r0
|
||
+ st.w r12[19*4], r1 /* y[19] = -tmp[7] */
|
||
+ st.w r12[18*4], r0 /* y[18] = -tmp[8] */
|
||
+ st.d r12[34*4], r0 /* y[34] = -tmp[7], y[35] = -tmp[8]*/
|
||
+
|
||
+ sub r10, r11 /* tmp[11] -= tmp[10]*/
|
||
+ sub r9, r10 /* tmp[12] -= tmp[11]*/
|
||
+
|
||
+ st.w r12[0*4], lr /* y[0] = tmp[9]*/
|
||
+ neg lr
|
||
+ st.w r12[17*4], lr /* y[17] = -tmp[9]*/
|
||
+ st.d r12[1*4], r10 /* y[1] = tmp[10], y[2] = tmp[11] */
|
||
+ neg r11
|
||
+ neg r10
|
||
+ st.w r12[16*4], r11 /* y[16] = -tmp[10] */
|
||
+ st.w r12[15*4], r10 /* y[15] = -tmp[11] */
|
||
+
|
||
+
|
||
+ sub r8, r9 /* tmp[13] -= tmp[12]*/
|
||
+ sub r7, r8 /* tmp[14] -= tmp[13]*/
|
||
+ st.d r12[3*4], r8 /* y[3] = tmp[12], y[4] = tmp[13] */
|
||
+ neg r9
|
||
+ neg r8
|
||
+ st.w r12[14*4], r9 /* y[14] = -tmp[12] */
|
||
+ st.w r12[13*4], r8 /* y[13] = -tmp[13] */
|
||
+
|
||
+ sub r6, r7 /* tmp[15] -= tmp[14]*/
|
||
+ sub r5, r6 /* tmp[16] -= tmp[15]*/
|
||
+ sub r4, r5 /* tmp[17] -= tmp[16]*/
|
||
+
|
||
+ st.d r12[5*4], r6 /* y[5] = tmp[14], y[6] = tmp[15] */
|
||
+ neg r7
|
||
+ neg r6
|
||
+ st.w r12[12*4], r7 /* y[12] = -tmp[14] */
|
||
+ st.w r12[11*4], r6 /* y[11] = -tmp[15] */
|
||
+
|
||
+ st.d r12[7*4], r4 /* y[7] = tmp[16], y[8] = tmp[17] */
|
||
+ neg r5
|
||
+ neg r4
|
||
+ st.w r12[10*4], r5 /* y[10] = -tmp[16] */
|
||
+ st.w r12[9*4], r4 /* y[9] = -tmp[17] */
|
||
+
|
||
+ popm r0-r7,r11,pc
|
||
+
|
||
+ .align 2
|
||
+scale_dctIV:
|
||
+ .short MAD_F(0x1ff833fa), MAD_F(0x1fb9ea93), MAD_F(0x1f3dd120)
|
||
+ .short MAD_F(0x1e84d969), MAD_F(0x1d906bcf), MAD_F(0x1c62648b)
|
||
+ .short MAD_F(0x1afd100f), MAD_F(0x1963268b), MAD_F(0x1797c6a4)
|
||
+ .short MAD_F(0x159e6f5b), MAD_F(0x137af940), MAD_F(0x11318ef3)
|
||
+ .short MAD_F(0x0ec6a507), MAD_F(0x0c3ef153), MAD_F(0x099f61c5)
|
||
+ .short MAD_F(0x06ed12c5), MAD_F(0x042d4544), MAD_F(0x0165547c)
|
||
+
|
||
+ .align 2
|
||
+scale_sdctII:
|
||
+ .short MAD_F(0x1fe0d3b4), MAD_F(0x1ee8dd47), MAD_F(0x1d007930)
|
||
+ .short MAD_F(0x1a367e59), MAD_F(0x16a09e66), MAD_F(0x125abcf8)
|
||
+ .short MAD_F(0x0d8616bc), MAD_F(0x08483ee1), MAD_F(0x02c9fad7)
|
||
diff --git a/layer3.c b/layer3.c
|
||
index 4e5d3fa..dffdab3 100644
|
||
--- a/layer3.c
|
||
+++ b/layer3.c
|
||
@@ -378,6 +378,11 @@ mad_fixed_t const ca[8] = {
|
||
-MAD_F(0x003a2847) /* -0.014198569 */, -MAD_F(0x000f27b4) /* -0.003699975 */
|
||
};
|
||
|
||
+#ifdef FPM_AVR32
|
||
+# undef MAD_F
|
||
+# define MAD_F(x) ((x + (1 << 12)) >> 13)
|
||
+#endif
|
||
+
|
||
/*
|
||
* IMDCT coefficients for short blocks
|
||
* derived from section 2.4.3.4.10.2 of ISO/IEC 11172-3
|
||
@@ -386,7 +391,7 @@ mad_fixed_t const ca[8] = {
|
||
* imdct_s[i /odd][k] = cos((PI / 24) * (2 * (6 + (i-1)/2) + 7) * (2 * k + 1))
|
||
*/
|
||
static
|
||
-mad_fixed_t const imdct_s[6][6] = {
|
||
+mad_coeff_t const imdct_s[6][6] = {
|
||
# include "imdct_s.dat"
|
||
};
|
||
|
||
@@ -398,7 +403,7 @@ mad_fixed_t const imdct_s[6][6] = {
|
||
* window_l[i] = sin((PI / 36) * (i + 1/2))
|
||
*/
|
||
static
|
||
-mad_fixed_t const window_l[36] = {
|
||
+mad_coeff_t const window_l[36] = {
|
||
MAD_F(0x00b2aa3e) /* 0.043619387 */, MAD_F(0x0216a2a2) /* 0.130526192 */,
|
||
MAD_F(0x03768962) /* 0.216439614 */, MAD_F(0x04cfb0e2) /* 0.300705800 */,
|
||
MAD_F(0x061f78aa) /* 0.382683432 */, MAD_F(0x07635284) /* 0.461748613 */,
|
||
@@ -429,7 +434,7 @@ mad_fixed_t const window_l[36] = {
|
||
* window_s[i] = sin((PI / 12) * (i + 1/2))
|
||
*/
|
||
static
|
||
-mad_fixed_t const window_s[12] = {
|
||
+mad_coeff_t const window_s[12] = {
|
||
MAD_F(0x0216a2a2) /* 0.130526192 */, MAD_F(0x061f78aa) /* 0.382683432 */,
|
||
MAD_F(0x09bd7ca0) /* 0.608761429 */, MAD_F(0x0cb19346) /* 0.793353340 */,
|
||
MAD_F(0x0ec835e8) /* 0.923879533 */, MAD_F(0x0fdcf549) /* 0.991444861 */,
|
||
@@ -438,6 +443,11 @@ mad_fixed_t const window_s[12] = {
|
||
MAD_F(0x061f78aa) /* 0.382683432 */, MAD_F(0x0216a2a2) /* 0.130526192 */,
|
||
};
|
||
|
||
+#ifdef FPM_AVR32
|
||
+# undef MAD_F
|
||
+# define MAD_F(x) ((mad_fixed_t) (x##L))
|
||
+#endif
|
||
+
|
||
/*
|
||
* coefficients for intensity stereo processing
|
||
* derived from section 2.4.3.4.9.3 of ISO/IEC 11172-3
|
||
@@ -879,6 +889,42 @@ void III_exponents(struct channel const *channel,
|
||
* NAME: III_requantize()
|
||
* DESCRIPTION: requantize one (positive) value
|
||
*/
|
||
+
|
||
+#if 0
|
||
+/*static*/
|
||
+mad_fixed_t III_requantize(unsigned int value, signed int exp)
|
||
+{
|
||
+ register mad_fixed_t tmp2, tmp3;
|
||
+ long long tmp_d;
|
||
+
|
||
+ asm ("asr\t%0, %1, 2\n"
|
||
+ "ld.w\t%2, %4[%5 << 2]\n"
|
||
+ "sub\t%1, %1, %0 << 2\n"
|
||
+ "asr\t%3, %2, 7\n"
|
||
+ "andl\t%2, 0x7f, COH\n"
|
||
+ "add\t%0, %2\n"
|
||
+ "lsl\t%m0,%3,%0\n"
|
||
+ "neg\t%0\n"
|
||
+ "asr\t%3,%3,%0\n"
|
||
+ "add\t%2, %6, %1 << 2\n"
|
||
+ "ld.w\t%2, %2[12]\n"
|
||
+ "cp.w\t%0, 0\n"
|
||
+ "movlt\t%3, %m0\n"
|
||
+ "muls.d\t%0, %3, %2\n"
|
||
+ "cp.w\t%1, 0\n"
|
||
+ "breq\t0f\n"
|
||
+ "lsr\t%0, %0, 28\n"
|
||
+ "or\t%3, %0, %m0 << 4\n"
|
||
+ "0:\n"
|
||
+ : "=&r"(tmp_d), "+r"(exp), "=&r"(tmp2), "=&r"(tmp3)
|
||
+ : "r"(&rq_table), "r"(value), "r"(root_table));
|
||
+
|
||
+
|
||
+ return tmp3;
|
||
+}
|
||
+
|
||
+#else
|
||
+
|
||
static
|
||
mad_fixed_t III_requantize(unsigned int value, signed int exp)
|
||
{
|
||
@@ -918,6 +964,7 @@ mad_fixed_t III_requantize(unsigned int value, signed int exp)
|
||
|
||
return frac ? mad_f_mul(requantized, root_table[3 + frac]) : requantized;
|
||
}
|
||
+#endif
|
||
|
||
/* we must take care that sz >= bits and sz < sizeof(long) lest bits == 0 */
|
||
# define MASK(cache, sz, bits) \
|
||
@@ -2054,27 +2101,42 @@ void imdct36(mad_fixed_t const X[18], mad_fixed_t x[36])
|
||
}
|
||
# endif
|
||
|
||
+
|
||
+#ifdef FPM_AVR32
|
||
+# undef mad_f_mul
|
||
+# define mad_f_mul(x, y) __builtin_mulsatrndwh_w(x, y)
|
||
+#endif
|
||
+
|
||
/*
|
||
* NAME: III_imdct_l()
|
||
* DESCRIPTION: perform IMDCT and windowing for long blocks
|
||
*/
|
||
static
|
||
-void III_imdct_l(mad_fixed_t const X[18], mad_fixed_t z[36],
|
||
+void III_imdct_l(mad_fixed_t /*const*/ X[18], mad_fixed_t z[36],
|
||
unsigned int block_type)
|
||
{
|
||
unsigned int i;
|
||
+ mad_fixed_t *z_ptr;
|
||
+ mad_coeff_t *w_ptr;
|
||
|
||
/* IMDCT */
|
||
|
||
+#ifdef FPM_AVR32
|
||
+ imdct36_avr32(X, z);
|
||
+#else
|
||
imdct36(X, z);
|
||
+#endif
|
||
|
||
/* windowing */
|
||
|
||
+ z_ptr = &z[0];
|
||
+ w_ptr = &window_l[0];
|
||
+
|
||
switch (block_type) {
|
||
case 0: /* normal window */
|
||
# if defined(ASO_INTERLEAVE1)
|
||
{
|
||
- register mad_fixed_t tmp1, tmp2;
|
||
+ register mad_coeff_t tmp1, tmp2;
|
||
|
||
tmp1 = window_l[0];
|
||
tmp2 = window_l[1];
|
||
@@ -2091,15 +2153,16 @@ void III_imdct_l(mad_fixed_t const X[18], mad_fixed_t z[36],
|
||
}
|
||
# elif defined(ASO_INTERLEAVE2)
|
||
{
|
||
- register mad_fixed_t tmp1, tmp2;
|
||
+ register mad_fixed_t tmp1;
|
||
+ register mad_coeff_t tmp2;
|
||
|
||
- tmp1 = z[0];
|
||
- tmp2 = window_l[0];
|
||
+ tmp1 = *z_ptr;
|
||
+ tmp2 = *w_ptr++;
|
||
|
||
for (i = 0; i < 35; ++i) {
|
||
- z[i] = mad_f_mul(tmp1, tmp2);
|
||
- tmp1 = z[i + 1];
|
||
- tmp2 = window_l[i + 1];
|
||
+ *z_ptr++ = mad_f_mul(tmp1, tmp2);
|
||
+ tmp1 = *z_ptr;
|
||
+ tmp2 = *w_ptr++;
|
||
}
|
||
|
||
z[35] = mad_f_mul(tmp1, tmp2);
|
||
@@ -2118,23 +2181,28 @@ void III_imdct_l(mad_fixed_t const X[18], mad_fixed_t z[36],
|
||
|
||
case 1: /* start block */
|
||
for (i = 0; i < 18; i += 3) {
|
||
- z[i + 0] = mad_f_mul(z[i + 0], window_l[i + 0]);
|
||
- z[i + 1] = mad_f_mul(z[i + 1], window_l[i + 1]);
|
||
- z[i + 2] = mad_f_mul(z[i + 2], window_l[i + 2]);
|
||
+ *(z_ptr++) = mad_f_mul(*z_ptr, *w_ptr++);
|
||
+ *(z_ptr++) = mad_f_mul(*z_ptr, *w_ptr++);
|
||
+ *(z_ptr++) = mad_f_mul(*z_ptr, *w_ptr++);
|
||
}
|
||
+ z_ptr += 6;
|
||
+ w_ptr = &window_s[6];
|
||
/* (i = 18; i < 24; ++i) z[i] unchanged */
|
||
- for (i = 24; i < 30; ++i) z[i] = mad_f_mul(z[i], window_s[i - 18]);
|
||
- for (i = 30; i < 36; ++i) z[i] = 0;
|
||
+ for (i = 24; i < 30; ++i) *z_ptr++ = mad_f_mul(*z_ptr, *w_ptr++);
|
||
+ for (i = 30; i < 36; ++i) *z_ptr++ = 0;
|
||
break;
|
||
|
||
case 3: /* stop block */
|
||
- for (i = 0; i < 6; ++i) z[i] = 0;
|
||
- for (i = 6; i < 12; ++i) z[i] = mad_f_mul(z[i], window_s[i - 6]);
|
||
+ w_ptr = &window_s[0];
|
||
+ for (i = 0; i < 6; ++i) *z_ptr++ = 0;
|
||
+ for (i = 6; i < 12; ++i) *z_ptr++ = mad_f_mul(*z_ptr, *w_ptr++);
|
||
/* (i = 12; i < 18; ++i) z[i] unchanged */
|
||
+ w_ptr = &window_l[18];
|
||
+ z_ptr += 6;
|
||
for (i = 18; i < 36; i += 3) {
|
||
- z[i + 0] = mad_f_mul(z[i + 0], window_l[i + 0]);
|
||
- z[i + 1] = mad_f_mul(z[i + 1], window_l[i + 1]);
|
||
- z[i + 2] = mad_f_mul(z[i + 2], window_l[i + 2]);
|
||
+ *z_ptr++ = mad_f_mul(*z_ptr, *w_ptr++ );
|
||
+ *z_ptr++ = mad_f_mul(*z_ptr, *w_ptr++);
|
||
+ *z_ptr++ = mad_f_mul(*z_ptr, *w_ptr++);
|
||
}
|
||
break;
|
||
}
|
||
@@ -2146,10 +2214,10 @@ void III_imdct_l(mad_fixed_t const X[18], mad_fixed_t z[36],
|
||
* DESCRIPTION: perform IMDCT and windowing for short blocks
|
||
*/
|
||
static
|
||
-void III_imdct_s(mad_fixed_t const X[18], mad_fixed_t z[36])
|
||
+void III_imdct_s(mad_fixed_t /*const*/ X[18], mad_fixed_t z[36])
|
||
{
|
||
mad_fixed_t y[36], *yptr;
|
||
- mad_fixed_t const *wptr;
|
||
+ mad_coeff_t const *wptr;
|
||
int w, i;
|
||
register mad_fixed64hi_t hi;
|
||
register mad_fixed64lo_t lo;
|
||
@@ -2159,11 +2227,56 @@ void III_imdct_s(mad_fixed_t const X[18], mad_fixed_t z[36])
|
||
yptr = &y[0];
|
||
|
||
for (w = 0; w < 3; ++w) {
|
||
- register mad_fixed_t const (*s)[6];
|
||
+ register mad_coeff_t const (*s)[6];
|
||
|
||
s = imdct_s;
|
||
|
||
for (i = 0; i < 3; ++i) {
|
||
+#ifdef FPM_AVR32
|
||
+ register long long int acc, tmp1, tmp2, tmp3, tmp4;
|
||
+ asm volatile ("ld.d\t%0, %5++\n"
|
||
+ "ld.d\t%1, %6[0]\n"
|
||
+ "ld.d\t%2, %6[2*4]\n"
|
||
+ "ld.d\t%3, %6[4*4]\n"
|
||
+ "mulwh.d\t%4, %m1, %m0:t\n"
|
||
+ "macwh.d\t%4, %1, %m0:b\n"
|
||
+ "ld.w\t%m0, %5++\n"
|
||
+ "macwh.d\t%4, %m2, %0:t\n"
|
||
+ "macwh.d\t%4, %2, %0:b\n"
|
||
+ "macwh.d\t%4, %m3, %m0:t\n"
|
||
+ "macwh.d\t%4, %3, %m0:b\n"
|
||
+ "ld.d\t%0, %5++\n"
|
||
+ "rol\t%4\n"
|
||
+ "rol\t%m4\n"
|
||
+ : "=&r"(tmp1), "=&r"(tmp2), "=&r"(tmp3), "=&r"(tmp4),
|
||
+ "=&r"(acc), "+r"(s)
|
||
+ : "r"(X));
|
||
+
|
||
+ asm volatile ("st.w\t%1[0], %m0\n"
|
||
+ "neg\t%m0\n"
|
||
+ "st.w\t%2[5*4], %m0\n"
|
||
+ : "+r"(acc)
|
||
+ : "r"(&yptr[i]), "r"(&yptr[-i]));
|
||
+
|
||
+ asm volatile ("mulwh.d\t%4, %m1, %m0:t\n"
|
||
+ "macwh.d\t%4, %1, %m0:b\n"
|
||
+ "ld.w\t%m0, %5++\n"
|
||
+ "macwh.d\t%4, %m2, %0:t\n"
|
||
+ "macwh.d\t%4, %2, %0:b\n"
|
||
+ "macwh.d\t%4, %m3, %m0:t\n"
|
||
+ "macwh.d\t%4, %3, %m0:b\n"
|
||
+ "rol\t%4\n"
|
||
+ "rol\t%m4\n"
|
||
+ : "+r"(tmp1), "+r"(tmp2), "+r"(tmp3), "+r"(tmp4),
|
||
+ "=&r"(acc), "+r"(s)
|
||
+ : "r"(X));
|
||
+
|
||
+ asm volatile ( "st.w\t%1[6*4], %m0\n"
|
||
+ "st.w\t%2[11*4], %m0\n"
|
||
+ :: "r"(acc), "r"(&yptr[i]), "r"(&yptr[-i]));
|
||
+
|
||
+
|
||
+#else
|
||
MAD_F_ML0(hi, lo, X[0], (*s)[0]);
|
||
MAD_F_MLA(hi, lo, X[1], (*s)[1]);
|
||
MAD_F_MLA(hi, lo, X[2], (*s)[2]);
|
||
@@ -2187,6 +2300,7 @@ void III_imdct_s(mad_fixed_t const X[18], mad_fixed_t z[36])
|
||
yptr[11 - i] = yptr[i + 6];
|
||
|
||
++s;
|
||
+#endif
|
||
}
|
||
|
||
yptr += 12;
|
||
@@ -2198,6 +2312,196 @@ void III_imdct_s(mad_fixed_t const X[18], mad_fixed_t z[36])
|
||
yptr = &y[0];
|
||
wptr = &window_s[0];
|
||
|
||
+#ifdef FPM_AVR32
|
||
+ /* z[0] = 0;
|
||
+ z[1] = 0;
|
||
+ z[2] = 0;
|
||
+ z[3] = 0;
|
||
+ z[4] = 0;
|
||
+ z[5] = 0;
|
||
+ z[30] = 0;
|
||
+ z[31] = 0;
|
||
+ z[32] = 0;
|
||
+ z[33] = 0;
|
||
+ z[34] = 0;
|
||
+ z[35] = 0;
|
||
+ */
|
||
+ {
|
||
+ register long long int tmp, tmp2, tmp3, w0123, w4567, w891011;
|
||
+ asm volatile ("mov\t%m0, 0\n"
|
||
+ "mov\t%0, %m0\n"
|
||
+ "st.d\t%1[0], %0\n"
|
||
+ "st.d\t%1[2*4], %0\n"
|
||
+ "st.d\t%1[4*4], %0\n"
|
||
+ "st.d\t%1[30*4], %0\n"
|
||
+ "st.d\t%1[32*4], %0\n"
|
||
+ "st.d\t%1[34*4], %0\n"
|
||
+ : "=&r"(tmp) : "r"(z));
|
||
+
|
||
+
|
||
+
|
||
+ /*
|
||
+ z[6] = mad_f_mul(yptr [0], wptr[0]);
|
||
+ z[7] = mad_f_mul(yptr [1], wptr[1]);
|
||
+ z[8] = mad_f_mul(yptr [2], wptr[2]);
|
||
+ z[9] = mad_f_mul(yptr [3], wptr[3]);
|
||
+ z[10] = mad_f_mul(yptr[4], wptr[4]);
|
||
+ z[11] = mad_f_mul(yptr[5], wptr[5]);
|
||
+ z[24] = mad_f_mul(yptr [30], wptr[6]);
|
||
+ z[25] = mad_f_mul(yptr [31], wptr[7]);
|
||
+ z[26] = mad_f_mul(yptr [32], wptr[8]);
|
||
+ z[27] = mad_f_mul(yptr [33], wptr[9]);
|
||
+ z[28] = mad_f_mul(yptr[34], wptr[10]);
|
||
+ z[29] = mad_f_mul(yptr[35], wptr[11]);
|
||
+ */
|
||
+
|
||
+
|
||
+ asm volatile ("ld.d\t%0, %5[0*4]\n"
|
||
+ "ld.d\t%3, %6[0*4]\n"
|
||
+ "ld.d\t%1, %5[2*4]\n"
|
||
+ "ld.d\t%2, %5[4*4]\n"
|
||
+ "mulsatrndwh.w\t%m3, %m3, %m0:t\n"
|
||
+ "mulsatrndwh.w\t%3, %3, %m0:b\n"
|
||
+ "ld.d\t%4, %6[2*4]\n"
|
||
+ "st.d\t%7[6*4], %3\n"
|
||
+
|
||
+ "mulsatrndwh.w\t%m4, %m4, %0:t\n"
|
||
+ "mulsatrndwh.w\t%4, %4, %0:b\n"
|
||
+ "ld.d\t%3, %6[4*4]\n"
|
||
+ "st.d\t%7[8*4], %4\n"
|
||
+
|
||
+ "mulsatrndwh.w\t%m3, %m3, %m1:t\n"
|
||
+ "mulsatrndwh.w\t%3, %3, %m1:b\n"
|
||
+ "ld.d\t%4, %6[30*4]\n"
|
||
+ "st.d\t%7[10*4], %3\n"
|
||
+
|
||
+ "mulsatrndwh.w\t%m4, %m4, %1:t\n"
|
||
+ "mulsatrndwh.w\t%4, %4, %1:b\n"
|
||
+ "ld.d\t%3, %6[32*4]\n"
|
||
+ "st.d\t%7[24*4], %4\n"
|
||
+
|
||
+ "mulsatrndwh.w\t%m3, %m3, %m2:t\n"
|
||
+ "mulsatrndwh.w\t%3, %3, %m2:b\n"
|
||
+ "ld.d\t%4, %6[34*4]\n"
|
||
+ "st.d\t%7[26*4], %3\n"
|
||
+
|
||
+ "mulsatrndwh.w\t%m4, %m4, %2:t\n"
|
||
+ "mulsatrndwh.w\t%4, %4, %2:b\n"
|
||
+ "st.d\t%7[28*4], %4\n"
|
||
+
|
||
+ : "=&r"(w0123), "=&r"(w4567), "=&r"(w891011), "=&r"(tmp), "=&r"(tmp2)
|
||
+ : "r"(wptr), "r"(yptr), "r"(z));
|
||
+ /*
|
||
+ MAD_F_ML0(hi, lo, yptr[6], wptr[6]);
|
||
+ MAD_F_MLA(hi, lo, yptr[12], wptr[0]);
|
||
+ z[12] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[7], wptr[7]);
|
||
+ MAD_F_MLA(hi, lo, yptr[13], wptr[1]);
|
||
+ z[13] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[8], wptr[8]);
|
||
+ MAD_F_MLA(hi, lo, yptr[14], wptr[2]);
|
||
+ z[14] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[9], wptr[9]);
|
||
+ MAD_F_MLA(hi, lo, yptr[15], wptr[3]);
|
||
+ z[15] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[10], wptr[10]);
|
||
+ MAD_F_MLA(hi, lo, yptr[16], wptr[4]);
|
||
+ z[16] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[11], wptr[11]);
|
||
+ MAD_F_MLA(hi, lo, yptr[17], wptr[5]);
|
||
+ z[17] = MAD_F_MLZ(hi, lo);
|
||
+
|
||
+ MAD_F_ML0(hi, lo, yptr[18], wptr[6]);
|
||
+ MAD_F_MLA(hi, lo, yptr[24], wptr[0]);
|
||
+ z[18] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[19], wptr[7]);
|
||
+ MAD_F_MLA(hi, lo, yptr[25], wptr[1]);
|
||
+ z[19] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[20], wptr[8]);
|
||
+ MAD_F_MLA(hi, lo, yptr[26], wptr[2]);
|
||
+ z[20] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[21], wptr[9]);
|
||
+ MAD_F_MLA(hi, lo, yptr[27], wptr[3]);
|
||
+ z[21] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[22], wptr[10]);
|
||
+ MAD_F_MLA(hi, lo, yptr[28], wptr[4]);
|
||
+ z[22] = MAD_F_MLZ(hi, lo);
|
||
+ MAD_F_ML0(hi, lo, yptr[23], wptr[11]);
|
||
+ MAD_F_MLA(hi, lo, yptr[29], wptr[5]);
|
||
+ z[23] = MAD_F_MLZ(hi, lo);*/
|
||
+
|
||
+
|
||
+ asm volatile ("ld.d\t%0, %3[6*4]\n"
|
||
+ "ld.d\t%1, %3[12*4]\n"
|
||
+ "mulwh.d\t%2, %m0, %5:t\n"
|
||
+ "macwh.d\t%2, %m1, %m4:t\n"
|
||
+ "mulwh.d\t%0, %0, %5:b\n"
|
||
+ "macwh.d\t%0, %1, %m4:b\n"
|
||
+ "lsl\t%m2, 1\n"
|
||
+ "lsl\t%2, %m0, 1\n"
|
||
+ "st.d\t%6[12*4], %2\n"
|
||
+
|
||
+ "ld.d\t%0, %3[18*4]\n"
|
||
+ "ld.d\t%1, %3[24*4]\n"
|
||
+ "mulwh.d\t%2, %m0, %5:t\n"
|
||
+ "macwh.d\t%2, %m1, %m4:t\n"
|
||
+ "mulwh.d\t%0, %0, %5:b\n"
|
||
+ "macwh.d\t%0, %1, %m4:b\n"
|
||
+ "lsl\t%m2, 1\n"
|
||
+ "lsl\t%2, %m0, 1\n"
|
||
+ "st.d\t%6[18*4], %2\n"
|
||
+
|
||
+ : "=&r"(tmp), "=&r"(tmp2), "=&r"(tmp3)
|
||
+ : "r"(yptr), "r"(w0123), "r"(w4567), "r"(z));
|
||
+
|
||
+ asm volatile ("ld.d\t%0, %3[8*4]\n"
|
||
+ "ld.d\t%1, %3[14*4]\n"
|
||
+ "mulwh.d\t%2, %m0, %m5:t\n"
|
||
+ "macwh.d\t%2, %m1, %4:t\n"
|
||
+ "mulwh.d\t%0, %0, %m5:b\n"
|
||
+ "macwh.d\t%0, %1, %4:b\n"
|
||
+ "lsl\t%m2, 1\n"
|
||
+ "lsl\t%2, %m0, 1\n"
|
||
+ "st.d\t%6[14*4], %2\n"
|
||
+
|
||
+ "ld.d\t%0, %3[20*4]\n"
|
||
+ "ld.d\t%1, %3[26*4]\n"
|
||
+ "mulwh.d\t%2, %m0, %m5:t\n"
|
||
+ "macwh.d\t%2, %m1, %4:t\n"
|
||
+ "mulwh.d\t%0, %0, %m5:b\n"
|
||
+ "macwh.d\t%0, %1, %4:b\n"
|
||
+ "lsl\t%m2, 1\n"
|
||
+ "lsl\t%2, %m0, 1\n"
|
||
+ "st.d\t%6[20*4], %2\n"
|
||
+
|
||
+ : "=&r"(tmp), "=&r"(tmp2), "=&r"(tmp3)
|
||
+ : "r"(yptr), "r"(w0123), "r"(w891011), "r"(z));
|
||
+
|
||
+ asm volatile ("ld.d\t%0, %3[10*4]\n"
|
||
+ "ld.d\t%1, %3[16*4]\n"
|
||
+ "mulwh.d\t%2, %m0, %5:t\n"
|
||
+ "macwh.d\t%2, %m1, %m4:t\n"
|
||
+ "mulwh.d\t%0, %0, %5:b\n"
|
||
+ "macwh.d\t%0, %1, %m4:b\n"
|
||
+ "lsl\t%m2, 1\n"
|
||
+ "lsl\t%2, %m0, 1\n"
|
||
+ "st.d\t%6[16*4], %2\n"
|
||
+
|
||
+ "ld.d\t%0, %3[22*4]\n"
|
||
+ "ld.d\t%1, %3[28*4]\n"
|
||
+ "mulwh.d\t%2, %m0, %5:t\n"
|
||
+ "macwh.d\t%2, %m1, %m4:t\n"
|
||
+ "mulwh.d\t%0, %0, %5:b\n"
|
||
+ "macwh.d\t%0, %1, %m4:b\n"
|
||
+ "lsl\t%m2, 1\n"
|
||
+ "lsl\t%2, %m0, 1\n"
|
||
+ "st.d\t%6[22*4], %2\n"
|
||
+
|
||
+ : "=&r"(tmp), "=&r"(tmp2), "=&r"(tmp3)
|
||
+ : "r"(yptr), "r"(w4567), "r"(w891011), "r"(z));
|
||
+
|
||
+ }
|
||
+#else
|
||
for (i = 0; i < 6; ++i) {
|
||
z[i + 0] = 0;
|
||
z[i + 6] = mad_f_mul(yptr[ 0 + 0], wptr[0]);
|
||
@@ -2218,8 +2522,15 @@ void III_imdct_s(mad_fixed_t const X[18], mad_fixed_t z[36])
|
||
++yptr;
|
||
++wptr;
|
||
}
|
||
+#endif
|
||
}
|
||
|
||
+#ifdef FPM_AVR32
|
||
+# undef mad_f_mul
|
||
+# define mad_f_mul(x, y) ((((x) + (1L << 11)) >> 12) * \
|
||
+ (((y) + (1L << 15)) >> 16))
|
||
+#endif
|
||
+
|
||
/*
|
||
* NAME: III_overlap()
|
||
* DESCRIPTION: perform overlap-add of windowed IMDCT outputs
|
||
diff --git a/synth.c b/synth.c
|
||
index 1d28d43..f42d49b 100644
|
||
--- a/synth.c
|
||
+++ b/synth.c
|
||
@@ -29,20 +29,6 @@
|
||
# include "frame.h"
|
||
# include "synth.h"
|
||
|
||
-/*
|
||
- * NAME: synth->init()
|
||
- * DESCRIPTION: initialize synth struct
|
||
- */
|
||
-void mad_synth_init(struct mad_synth *synth)
|
||
-{
|
||
- mad_synth_mute(synth);
|
||
-
|
||
- synth->phase = 0;
|
||
-
|
||
- synth->pcm.samplerate = 0;
|
||
- synth->pcm.channels = 0;
|
||
- synth->pcm.length = 0;
|
||
-}
|
||
|
||
/*
|
||
* NAME: synth->mute()
|
||
@@ -88,6 +74,10 @@ void mad_synth_mute(struct mad_synth *synth)
|
||
|
||
/* FPM_DEFAULT without OPT_SSO will actually lose accuracy and performance */
|
||
|
||
+# if defined(FPM_AVR32)
|
||
+# define OPT_SSO
|
||
+# endif
|
||
+
|
||
# if defined(FPM_DEFAULT) && !defined(OPT_SSO)
|
||
# define OPT_SSO
|
||
# endif
|
||
@@ -522,9 +512,15 @@ void dct32(mad_fixed_t const in[32], unsigned int slot,
|
||
# endif
|
||
# define ML0(hi, lo, x, y) ((lo) = (x) * (y))
|
||
# define MLA(hi, lo, x, y) ((lo) += (x) * (y))
|
||
-# define MLN(hi, lo) ((lo) = -(lo))
|
||
-# define MLZ(hi, lo) ((void) (hi), (mad_fixed_t) (lo))
|
||
-# define SHIFT(x) ((x) >> 2)
|
||
+# if defined(FPM_AVR32)
|
||
+# define MLN(hi, lo) MAD_F_MLN((hi), (lo))
|
||
+# define MLZ(hi, lo) (hi)
|
||
+# define SHIFT(x) ((x) << 2)
|
||
+# else
|
||
+# define MLN(hi, lo) ((lo) = -(lo))
|
||
+# define MLZ(hi, lo) ((void) (hi), (mad_fixed_t) (lo))
|
||
+# define SHIFT(x) ((x) >> 2)
|
||
+# endif
|
||
# define PRESHIFT(x) ((MAD_F(x) + (1L << 13)) >> 14)
|
||
# else
|
||
# define ML0(hi, lo, x, y) MAD_F_ML0((hi), (lo), (x), (y))
|
||
@@ -541,11 +537,54 @@ void dct32(mad_fixed_t const in[32], unsigned int slot,
|
||
# endif
|
||
# endif
|
||
|
||
+/*
|
||
+ * NAME: synth->init()
|
||
+ * DESCRIPTION: initialize synth struct
|
||
+ */
|
||
+
|
||
+#ifdef FPM_AVR32
|
||
+short Dmod[17][33];
|
||
+#endif
|
||
+
|
||
static
|
||
+#ifdef FPM_AVR32
|
||
+short const D[17][32] = {
|
||
+#else
|
||
mad_fixed_t const D[17][32] = {
|
||
+#endif
|
||
# include "D.dat"
|
||
};
|
||
|
||
+void mad_synth_init(struct mad_synth *synth)
|
||
+{
|
||
+
|
||
+ mad_synth_mute(synth);
|
||
+
|
||
+ synth->phase = 0;
|
||
+
|
||
+ synth->pcm.samplerate = 0;
|
||
+ synth->pcm.channels = 0;
|
||
+ synth->pcm.length = 0;
|
||
+
|
||
+#ifdef FPM_AVR32
|
||
+ {
|
||
+ int i, j;
|
||
+ for ( i = 0; i < 17; i++ ){
|
||
+ for ( j = 0; j < 32; j++ ){
|
||
+ if ( j & 1 ){
|
||
+ Dmod[i][17 + (j >> 1)]= D[i][j];
|
||
+ } else {
|
||
+ Dmod[i][(j >> 1)]= D[i][j];
|
||
+ }
|
||
+ }
|
||
+
|
||
+ Dmod[i][16]= Dmod[i][16+8];
|
||
+ }
|
||
+ }
|
||
+#endif
|
||
+
|
||
+}
|
||
+
|
||
# if defined(ASO_SYNTH)
|
||
void synth_full(struct mad_synth *, struct mad_frame const *,
|
||
unsigned int, unsigned int);
|
||
@@ -560,9 +599,13 @@ void synth_full(struct mad_synth *synth, struct mad_frame const *frame,
|
||
{
|
||
unsigned int phase, ch, s, sb, pe, po;
|
||
mad_fixed_t *pcm1, *pcm2, (*filter)[2][2][16][8];
|
||
- mad_fixed_t const (*sbsample)[36][32];
|
||
+ mad_fixed_t /*const*/ (*sbsample)[36][32];
|
||
register mad_fixed_t (*fe)[8], (*fx)[8], (*fo)[8];
|
||
+#ifdef FPM_AVR32
|
||
+ register short const (*Dptr)[32], *ptr;
|
||
+#else
|
||
register mad_fixed_t const (*Dptr)[32], *ptr;
|
||
+#endif
|
||
register mad_fixed64hi_t hi;
|
||
register mad_fixed64lo_t lo;
|
||
|
||
@@ -573,6 +616,20 @@ void synth_full(struct mad_synth *synth, struct mad_frame const *frame,
|
||
pcm1 = synth->pcm.samples[ch];
|
||
|
||
for (s = 0; s < ns; ++s) {
|
||
+# ifdef FPM_AVR32
|
||
+/*
|
||
+ int i;
|
||
+ for ( i = 0; i < 32; i++ ){
|
||
+ (*sbsample)[s][i] = ((*sbsample)[s][i] + (1 << 13)) & 0xFFFFC000;
|
||
+ }
|
||
+*/
|
||
+ dct32_avr32((*sbsample)[s], phase >> 1,
|
||
+ (*filter)[0][phase & 1], (*filter)[1][phase & 1]);
|
||
+ /* printf("dct32: %d\n", GET_CYCLES);*/
|
||
+ pcm1 = synth_avr32(phase, (mad_fixed_t *)filter, \
|
||
+ pcm1, (short *)&Dmod[0]);
|
||
+ /* printf("synth_window: %d\n", GET_CYCLES);*/
|
||
+# else
|
||
dct32((*sbsample)[s], phase >> 1,
|
||
(*filter)[0][phase & 1], (*filter)[1][phase & 1]);
|
||
|
||
@@ -679,6 +736,7 @@ void synth_full(struct mad_synth *synth, struct mad_frame const *frame,
|
||
MLA(hi, lo, (*fo)[7], ptr[ 2]);
|
||
|
||
*pcm1 = SHIFT(-MLZ(hi, lo));
|
||
+# endif
|
||
pcm1 += 16;
|
||
|
||
phase = (phase + 1) % 16;
|
||
diff --git a/synth_avr32.S b/synth_avr32.S
|
||
new file mode 100644
|
||
index 0000000..701077b
|
||
--- /dev/null
|
||
+++ b/synth_avr32.S
|
||
@@ -0,0 +1,394 @@
|
||
+/*
|
||
+ Optimized function for speeding up synthesis filter
|
||
+ in MPEG Audio Decoding.
|
||
+ Copyright 2003-2006 Atmel Corporation.
|
||
+
|
||
+ Written by Ronny Pedersen and Lars Even Alm<6C>s, Atmel Norway
|
||
+
|
||
+ This program is free software; you can redistribute it and/or modify
|
||
+ it under the terms of the GNU General Public License as published by
|
||
+ the Free Software Foundation; either version 2 of the License, or
|
||
+ (at your option) any later version.
|
||
+
|
||
+ This program is distributed in the hope that it will be useful,
|
||
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
+ GNU General Public License for more details.
|
||
+
|
||
+ You should have received a copy of the GNU General Public License
|
||
+ along with this program; if not, write to the Free Software
|
||
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
+
|
||
+
|
||
+/* *****************
|
||
+ Defining macros
|
||
+ ***************** */
|
||
+
|
||
+ .macro window_1 f, ptr, acc, ptr_offset, mul, tmp1_lo, tmp1_hi, tmp2_lo, tmp2_hi, tmp3_lo, tmp3_hi
|
||
+ ld.d \tmp1_lo, \f[0*4] /* tmp1 = { f[0], f[1] } */
|
||
+ ld.w \tmp2_lo, \ptr[0*2+\ptr_offset*2] /* tmp2_lo = { ptr[0], ptr[1] }*/
|
||
+ ld.d \tmp3_lo, \f[6*4] /* tmp3 = { f[6], f[7] } */
|
||
+ ld.w \tmp2_hi, \ptr[6*2+\ptr_offset*2] /* tmp2_hi = { ptr[6], ptr[7] }*/
|
||
+ .if \mul
|
||
+ mulwh.d \acc, \tmp1_hi, \tmp2_lo:t /* f[0] * ptr[0]*/
|
||
+ .else
|
||
+ macwh.d \acc, \tmp1_hi, \tmp2_lo:t /* f[0] * ptr[0]*/
|
||
+ .endif
|
||
+ macwh.d \acc, \tmp3_lo, \tmp2_lo:b /* f[7] * ptr[1]*/
|
||
+ ld.w \tmp2_lo, \ptr[2*2+\ptr_offset*2] /* tmp2_lo = { ptr[2], ptr[3] }*/
|
||
+ macwh.d \acc, \tmp1_lo, \tmp2_hi:b /* f[1] * ptr[7]*/
|
||
+ ld.d \tmp1_lo, \f[2*4] /* tmp1 = { f[2], f[3] } */
|
||
+
|
||
+ macwh.d \acc, \tmp3_hi, \tmp2_lo:t /* f[6] * ptr[2]*/
|
||
+ macwh.d \acc, \tmp1_hi, \tmp2_hi:t /* f[2] * ptr[6]*/
|
||
+ ld.d \tmp3_lo, \f[4*4] /* tmp3 = { f[4], f[5] } */
|
||
+ ld.w \tmp2_hi, \ptr[4*2+\ptr_offset*2] /* tmp2_hi = { ptr[4], ptr[5] }*/
|
||
+ macwh.d \acc, \tmp3_lo, \tmp2_lo:b /* f[5] * ptr[3]*/
|
||
+
|
||
+ macwh.d \acc, \tmp1_lo, \tmp2_hi:b /* f[3] * ptr[5]*/
|
||
+ macwh.d \acc, \tmp3_hi, \tmp2_hi:t /* f[4] * ptr[4]*/
|
||
+ .endm
|
||
+
|
||
+ .macro window_2 f, ptr, acc, ptr_offset, mul, tmp1_lo, tmp1_hi, tmp2_lo, tmp2_hi, tmp3_lo, tmp3_hi
|
||
+ ld.d \tmp1_lo, \f[0*4] /* tmp1 = { f[0], f[1] } */
|
||
+ ld.w \tmp2_lo, \ptr[7*2+\ptr_offset*2] /* tmp2_lo = { ptr[7], ptr[8] }*/
|
||
+ ld.d \tmp3_lo, \f[2*4] /* tmp3 = { f[2], f[3] } */
|
||
+ ld.w \tmp2_hi, \ptr[9*2+\ptr_offset*2] /* tmp2_hi = { ptr[9], ptr[10] }*/
|
||
+ .if \mul
|
||
+ mulwh.d \acc, \tmp1_hi, \tmp2_lo:t /* f[0] * ptr[7]*/
|
||
+ .else
|
||
+ macwh.d \acc, \tmp1_hi, \tmp2_lo:t /* f[0] * ptr[7]*/
|
||
+ .endif
|
||
+ macwh.d \acc, \tmp1_lo, \tmp2_lo:b /* f[1] * ptr[8]*/
|
||
+
|
||
+ ld.d \tmp1_lo, \f[4*4] /* tmp1 = { f[4], f[5] } */
|
||
+ ld.w \tmp2_lo, \ptr[11*2+\ptr_offset*2] /* tmp2_lo = { ptr[11], ptr[12] }*/
|
||
+
|
||
+ macwh.d \acc, \tmp3_hi, \tmp2_hi:t /* f[2] * ptr[9]*/
|
||
+ macwh.d \acc, \tmp3_lo, \tmp2_hi:b /* f[3] * ptr[10]*/
|
||
+
|
||
+ ld.d \tmp3_lo, \f[6*4] /* tmp3 = { f[6], f[7] } */
|
||
+ ld.w \tmp2_hi, \ptr[13*2+\ptr_offset*2] /* tmp2_hi = { ptr[13], ptr[14] }*/
|
||
+
|
||
+ macwh.d \acc, \tmp1_hi, \tmp2_lo:t /* f[4] * ptr[11]*/
|
||
+ macwh.d \acc, \tmp1_lo, \tmp2_lo:b /* f[5] * ptr[12]*/
|
||
+ macwh.d \acc, \tmp3_hi, \tmp2_hi:t /* f[6] * ptr[13]*/
|
||
+ macwh.d \acc, \tmp3_lo, \tmp2_hi:b /* f[7] * ptr[14]*/
|
||
+ .endm
|
||
+
|
||
+ .macro scale res, d_lo, d_hi
|
||
+ lsl \d_hi, 2
|
||
+ .endm
|
||
+
|
||
+/* **********************
|
||
+ Starting main function
|
||
+ ********************** */
|
||
+
|
||
+/* Function synth_avr32 is called from synth.c with arguments:
|
||
+ phase, filter, *pcm1, &D[0] */
|
||
+
|
||
+ .global synth_avr32
|
||
+synth_avr32:
|
||
+ pushm r0-r7, lr
|
||
+ sub sp, 8
|
||
+
|
||
+ /* R12 = phase, R11 = filter, R10 = pcm1, r9 = D*/
|
||
+ bld r12, 0
|
||
+ brcc synth_even
|
||
+
|
||
+ /* Filter for odd phases */
|
||
+
|
||
+ /* fe = &(*filter)[0][1][0];
|
||
+ fx = &(*filter)[0][0][0];
|
||
+ fo = &(*filter)[1][0][0]; */
|
||
+ sub lr /*fe*/, r11, -16*8*4
|
||
+ sub r8 /*fo*/, r11, -16*8*4*2
|
||
+
|
||
+ /* pe = phase >> 1; */
|
||
+ lsr r12, 1
|
||
+ stdsp sp[4], r12
|
||
+ /* ptr = (short const *)Dmod + pe; */
|
||
+ add r12, r9, r12 << 1
|
||
+
|
||
+ /* ML0(hi, lo, (*fx)[0], ptr[0 + 17]);
|
||
+ MLA(hi, lo, (*fx)[1], ptr[7 + 17]);
|
||
+ MLA(hi, lo, (*fx)[2], ptr[6 + 17]);
|
||
+ MLA(hi, lo, (*fx)[3], ptr[5 + 17]);
|
||
+ MLA(hi, lo, (*fx)[4], ptr[4 + 17]);
|
||
+ MLA(hi, lo, (*fx)[5], ptr[3 + 17]);
|
||
+ MLA(hi, lo, (*fx)[6], ptr[2 + 17]);
|
||
+ MLA(hi, lo, (*fx)[7], ptr[1 + 17]); */
|
||
+ window_1 r11/*fx*/,r12/*ptr*/,r0/*acc*/,17/*off*/,1/*mul*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+ /* MLN(hi, lo); */
|
||
+ neg r0
|
||
+ acr r1
|
||
+ neg r1
|
||
+
|
||
+ /* MLA(hi, lo, (*fe)[0], ptr[0]);
|
||
+ MLA(hi, lo, (*fe)[1], ptr[7]);
|
||
+ MLA(hi, lo, (*fe)[2], ptr[6]);
|
||
+ MLA(hi, lo, (*fe)[3], ptr[5]);
|
||
+ MLA(hi, lo, (*fe)[4], ptr[4]);
|
||
+ MLA(hi, lo, (*fe)[5], ptr[3]);
|
||
+ MLA(hi, lo, (*fe)[6], ptr[2]);
|
||
+ MLA(hi, lo, (*fe)[7], ptr[1]); */
|
||
+ window_1 lr/*fe*/,r12/*ptr*/,r0/*acc*/,0/*off*/,0/*mac*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+ /* *pcm1++ = SHIFT(MLZ(hi, lo));
|
||
+
|
||
+ pcm2 = pcm1 + 31; */
|
||
+ scale r1, r0, r1
|
||
+ st.w r10/*pcm_1*/++, r1
|
||
+ sub r11/*pcm2*/, r10, -4*31
|
||
+
|
||
+ /* for (sb = 1; sb < 16; ++sb) { */
|
||
+ mov r2, 15
|
||
+ stdsp sp[0], r2
|
||
+odd_loop:
|
||
+ /* ++fe;
|
||
+ ptr += 33; */
|
||
+ sub lr /*fe*/, -8*4
|
||
+ sub r12, -33*2
|
||
+
|
||
+ /* ML0(hi, lo, (*fo)[0], ptr[0 + 17]);
|
||
+ MLA(hi, lo, (*fo)[1], ptr[7 + 17]);
|
||
+ MLA(hi, lo, (*fo)[2], ptr[6 + 17]);
|
||
+ MLA(hi, lo, (*fo)[3], ptr[5 + 17]);
|
||
+ MLA(hi, lo, (*fo)[4], ptr[4 + 17]);
|
||
+ MLA(hi, lo, (*fo)[5], ptr[3 + 17]);
|
||
+ MLA(hi, lo, (*fo)[6], ptr[2 + 17]);
|
||
+ MLA(hi, lo, (*fo)[7], ptr[1 + 17]); */
|
||
+ window_1 r8/*fo*/,r12/*ptr*/,r0/*acc*/,17/*off*/,1/*mul*/,r2,r3,r4,r5,r6,r7
|
||
+ /* MLN(hi, lo); */
|
||
+
|
||
+ neg r0
|
||
+ acr r1
|
||
+ neg r1
|
||
+
|
||
+ /* MLA(hi, lo, (*fe)[7], ptr[1]);
|
||
+ MLA(hi, lo, (*fe)[6], ptr[2]);
|
||
+ MLA(hi, lo, (*fe)[5], ptr[3]);
|
||
+ MLA(hi, lo, (*fe)[4], ptr[4]);
|
||
+ MLA(hi, lo, (*fe)[3], ptr[5]);
|
||
+ MLA(hi, lo, (*fe)[2], ptr[6]);
|
||
+ MLA(hi, lo, (*fe)[1], ptr[7]);
|
||
+ MLA(hi, lo, (*fe)[0], ptr[0]); */
|
||
+ window_1 lr/*fe*/,r12/*ptr*/,r0/*acc*/,0/*off*/,0/*mac*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+ /* ptr -= 2*pe; */
|
||
+ lddsp r2, sp[4]
|
||
+
|
||
+ /* *pcm1++ = SHIFT(MLZ(hi, lo)); */
|
||
+
|
||
+ scale r1, r0, r1
|
||
+ sub r12/*ptr*/, r12, r2/*pe*/<< 2
|
||
+ st.w r10/*pcm_1*/++, r1
|
||
+
|
||
+
|
||
+ /* ML0(hi, lo, (*fe)[0], ptr[7 + 17]);
|
||
+ MLA(hi, lo, (*fe)[1], ptr[8 + 17]);
|
||
+ MLA(hi, lo, (*fe)[2], ptr[9 + 17]);
|
||
+ MLA(hi, lo, (*fe)[3], ptr[10 + 17]);
|
||
+ MLA(hi, lo, (*fe)[4], ptr[11 + 17]);
|
||
+ MLA(hi, lo, (*fe)[5], ptr[12 + 17]);
|
||
+ MLA(hi, lo, (*fe)[6], ptr[13 + 17]);
|
||
+ MLA(hi, lo, (*fe)[7], ptr[14 + 17]); */
|
||
+ window_2 lr/*fe*/,r12/*ptr*/,r0/*acc*/,17/*off*/,1/*mul*/,r2,r3,r4,r5,r6,r7
|
||
+ /* MLA(hi, lo, (*fo)[7], ptr[14]);
|
||
+ MLA(hi, lo, (*fo)[6], ptr[13]);
|
||
+ MLA(hi, lo, (*fo)[5], ptr[12]);
|
||
+ MLA(hi, lo, (*fo)[4], ptr[11]);
|
||
+ MLA(hi, lo, (*fo)[3], ptr[10]);
|
||
+ MLA(hi, lo, (*fo)[2], ptr[9]);
|
||
+ MLA(hi, lo, (*fo)[1], ptr[8]);
|
||
+ MLA(hi, lo, (*fo)[0], ptr[7]); */
|
||
+ window_2 r8/*fo*/,r12/*ptr*/,r0/*acc*/,0/*off*/,0/*mac*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+
|
||
+ /* *pcm2-- = SHIFT(MLZ(hi, lo)); */
|
||
+ lddsp r3, sp[4]
|
||
+ lddsp r2, sp[0]
|
||
+ scale r1, r0, r1
|
||
+ st.w --r11/*pcm_2*/, r1
|
||
+
|
||
+ /* ptr += 2*pe; */
|
||
+ add r12/*ptr*/, r12, r3/*pe*/<< 2
|
||
+
|
||
+ /* ++fo;
|
||
+ } */
|
||
+ sub r8/*fo*/, -8*4
|
||
+
|
||
+ sub r2, 1
|
||
+ stdsp sp[0], r2
|
||
+ brne odd_loop
|
||
+
|
||
+ /* ptr += 33; */
|
||
+ sub r12/*ptr*/, -33*2
|
||
+
|
||
+ /* ML0(hi, lo, (*fo)[0], ptr[0 + 17]);
|
||
+ MLA(hi, lo, (*fo)[1], ptr[7 + 17]);
|
||
+ MLA(hi, lo, (*fo)[2], ptr[6 + 17]);
|
||
+ MLA(hi, lo, (*fo)[3], ptr[5 + 17]);
|
||
+ MLA(hi, lo, (*fo)[4], ptr[4 + 17]);
|
||
+ MLA(hi, lo, (*fo)[5], ptr[3 + 17]);
|
||
+ MLA(hi, lo, (*fo)[6], ptr[2 + 17]);
|
||
+ MLA(hi, lo, (*fo)[7], ptr[1 + 17]); */
|
||
+ window_1 r8/*fo*/,r12/*ptr*/,r0/*acc*/,17/*off*/,1/*mul*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+ rjmp synth_end
|
||
+synth_even:
|
||
+ /* Filter for even phases */
|
||
+
|
||
+ /* fe = &(*filter)[0][0][0];
|
||
+ fx = &(*filter)[0][1][0];
|
||
+ fo = &(*filter)[1][1][0]; */
|
||
+ sub lr /*fx*/, r11, -16*8*4
|
||
+ sub r8 /*fo*/, r11, -(16*8*4*2 + 16*8*4)
|
||
+
|
||
+ /* po = ((phase - 1) & 0xF) >> 1; */
|
||
+ sub r12, 1
|
||
+ andl r12, 0xe, COH
|
||
+ stdsp sp[4], r12
|
||
+ /* ptr = (short const *)Dmod + po; */
|
||
+ add r12, r9, r12
|
||
+
|
||
+ /* ML0(hi, lo, (*fx)[0], ptr[0 + 17]);
|
||
+ MLA(hi, lo, (*fx)[1], ptr[7 + 17]);
|
||
+ MLA(hi, lo, (*fx)[2], ptr[6 + 17]);
|
||
+ MLA(hi, lo, (*fx)[3], ptr[5 + 17]);
|
||
+ MLA(hi, lo, (*fx)[4], ptr[4 + 17]);
|
||
+ MLA(hi, lo, (*fx)[5], ptr[3 + 17]);
|
||
+ MLA(hi, lo, (*fx)[6], ptr[2 + 17]);
|
||
+ MLA(hi, lo, (*fx)[7], ptr[1 + 17]); */
|
||
+ window_1 lr/*fx*/,r12/*ptr*/,r0/*acc*/,17/*off*/,1/*mul*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+ /* MLN(hi, lo); */
|
||
+ neg r0
|
||
+ acr r1
|
||
+ neg r1
|
||
+
|
||
+ /* MLA(hi, lo, (*fe)[0], ptr[0 + 1]);
|
||
+ MLA(hi, lo, (*fe)[1], ptr[7 + 1]);
|
||
+ MLA(hi, lo, (*fe)[2], ptr[6 + 1]);
|
||
+ MLA(hi, lo, (*fe)[3], ptr[5 + 1]);
|
||
+ MLA(hi, lo, (*fe)[4], ptr[4 + 1]);
|
||
+ MLA(hi, lo, (*fe)[5], ptr[3 + 1]);
|
||
+ MLA(hi, lo, (*fe)[6], ptr[2 + 1]);
|
||
+ MLA(hi, lo, (*fe)[7], ptr[1 + 1]); */
|
||
+ window_1 r11/*fe*/,r12/*ptr*/,r0/*acc*/,1/*off*/,0/*mac*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+ /* *pcm1++ = SHIFT(MLZ(hi, lo));
|
||
+
|
||
+ pcm2 = pcm1 + 31; */
|
||
+ scale r1, r0, r1
|
||
+ st.w r10/*pcm_1*/++, r1
|
||
+ sub lr/*pcm2*/, r10, -4*31
|
||
+
|
||
+ /* for (sb = 1; sb < 16; ++sb) { */
|
||
+ mov r2, 15
|
||
+ stdsp sp[0], r2
|
||
+even_loop:
|
||
+ /* ++fe;
|
||
+ ptr += 33; */
|
||
+ sub r11 /*fe*/, -8*4
|
||
+ sub r12, -33*2
|
||
+
|
||
+ /* ML0(hi, lo, (*fo)[0], ptr[0 + 17]);
|
||
+ MLA(hi, lo, (*fo)[1], ptr[7 + 17]);
|
||
+ MLA(hi, lo, (*fo)[2], ptr[6 + 17]);
|
||
+ MLA(hi, lo, (*fo)[3], ptr[5 + 17]);
|
||
+ MLA(hi, lo, (*fo)[4], ptr[4 + 17]);
|
||
+ MLA(hi, lo, (*fo)[5], ptr[3 + 17]);
|
||
+ MLA(hi, lo, (*fo)[6], ptr[2 + 17]);
|
||
+ MLA(hi, lo, (*fo)[7], ptr[1 + 17]); */
|
||
+ window_1 r8/*fo*/,r12/*ptr*/,r0/*acc*/,17/*off*/,1/*mul*/,r2,r3,r4,r5,r6,r7
|
||
+ /* MLN(hi, lo); */
|
||
+ neg r0
|
||
+ acr r1
|
||
+ neg r1
|
||
+
|
||
+ /* MLA(hi, lo, (*fe)[7], ptr[1 + 1]);
|
||
+ MLA(hi, lo, (*fe)[6], ptr[2 + 1]);
|
||
+ MLA(hi, lo, (*fe)[5], ptr[3 + 1]);
|
||
+ MLA(hi, lo, (*fe)[4], ptr[4 + 1]);
|
||
+ MLA(hi, lo, (*fe)[3], ptr[5 + 1]);
|
||
+ MLA(hi, lo, (*fe)[2], ptr[6 + 1]);
|
||
+ MLA(hi, lo, (*fe)[1], ptr[7 + 1]);
|
||
+ MLA(hi, lo, (*fe)[0], ptr[0 + 1]); */
|
||
+ window_1 r11/*fe*/,r12/*ptr*/,r0/*acc*/,1/*off*/,0/*mac*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+ /* *pcm1++ = SHIFT(MLZ(hi, lo)); */
|
||
+ lddsp r2, sp[4]
|
||
+ scale r1, r0, r1
|
||
+ /* ptr -= 2*po; */
|
||
+ sub r12/*ptr*/, r12, r2/*po*/<< 1
|
||
+ st.w r10/*pcm_1*/++, r1
|
||
+
|
||
+
|
||
+ /* ML0(hi, lo, (*fe)[0], ptr[7 + 17 - 1]);
|
||
+ MLA(hi, lo, (*fe)[1], ptr[8 + 17 - 1]);
|
||
+ MLA(hi, lo, (*fe)[2], ptr[9 + 17 - 1]);
|
||
+ MLA(hi, lo, (*fe)[3], ptr[10 + 17 - 1]);
|
||
+ MLA(hi, lo, (*fe)[4], ptr[11 + 17 - 1]);
|
||
+ MLA(hi, lo, (*fe)[5], ptr[12 + 17 - 1]);
|
||
+ MLA(hi, lo, (*fe)[6], ptr[13 + 17 - 1]);
|
||
+ MLA(hi, lo, (*fe)[7], ptr[14 + 17 - 1]); */
|
||
+ window_2 r11/*fe*/,r12/*ptr*/,r0/*acc*/,16/*off*/,1/*mul*/,r2,r3,r4,r5,r6,r7
|
||
+ /* MLA(hi, lo, (*fo)[7], ptr[14]);
|
||
+ MLA(hi, lo, (*fo)[6], ptr[13]);
|
||
+ MLA(hi, lo, (*fo)[5], ptr[12]);
|
||
+ MLA(hi, lo, (*fo)[4], ptr[11]);
|
||
+ MLA(hi, lo, (*fo)[3], ptr[10]);
|
||
+ MLA(hi, lo, (*fo)[2], ptr[9]);
|
||
+ MLA(hi, lo, (*fo)[1], ptr[8]);
|
||
+ MLA(hi, lo, (*fo)[0], ptr[7]); */
|
||
+ window_2 r8/*fo*/,r12/*ptr*/,r0/*acc*/,0/*off*/,0/*mac*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+
|
||
+ /* *pcm2-- = SHIFT(MLZ(hi, lo)); */
|
||
+ lddsp r3, sp[4]
|
||
+ lddsp r2, sp[0]
|
||
+ scale r1, r0, r1
|
||
+ st.w --lr/*pcm_2*/, r1
|
||
+
|
||
+ /* ptr += 2*po; */
|
||
+ add r12/*ptr*/, r12, r3/*po*/<< 1
|
||
+
|
||
+ /* ++fo;
|
||
+ } */
|
||
+ sub r8/*fo*/, -8*4
|
||
+
|
||
+ sub r2, 1
|
||
+ stdsp sp[0], r2
|
||
+ brne even_loop
|
||
+
|
||
+ /* ptr += 33; */
|
||
+ sub r12/*ptr*/, -33*2
|
||
+
|
||
+ /* ML0(hi, lo, (*fo)[0], ptr[0 + 17]);
|
||
+ MLA(hi, lo, (*fo)[1], ptr[7 + 17]);
|
||
+ MLA(hi, lo, (*fo)[2], ptr[6 + 17]);
|
||
+ MLA(hi, lo, (*fo)[3], ptr[5 + 17]);
|
||
+ MLA(hi, lo, (*fo)[4], ptr[4 + 17]);
|
||
+ MLA(hi, lo, (*fo)[5], ptr[3 + 17]);
|
||
+ MLA(hi, lo, (*fo)[6], ptr[2 + 17]);
|
||
+ MLA(hi, lo, (*fo)[7], ptr[1 + 17]); */
|
||
+ window_1 r8/*fo*/,r12/*ptr*/,r0/*acc*/,17/*off*/,1/*mul*/,r2,r3,r4,r5,r6,r7
|
||
+
|
||
+
|
||
+
|
||
+synth_end:
|
||
+ /* *pcm1 = SHIFT(-MLZ(hi, lo)); */
|
||
+ scale r1, r0, r1
|
||
+ neg r1
|
||
+ st.w r10/*pcm_1*/, r1
|
||
+
|
||
+ mov r12, r10
|
||
+ sub sp, -8
|
||
+ popm r0-r7, pc
|
||
+
|
||
+
|
||
+
|
||
+
|
||
+
|