summaryrefslogtreecommitdiff
path: root/libavcodec/mips
diff options
context:
space:
mode:
authorMåns Rullgård <mans@mansr.com>2009-05-28 23:19:32 +0000
committerMåns Rullgård <mans@mansr.com>2009-05-28 23:19:32 +0000
commit9d48e28f00c992cfc870726533e0d5b3b1390ee2 (patch)
treeb65bd4c7565f639128c8de4c4afa3c471ba833a3 /libavcodec/mips
parent85dd97adff3560b5d3c79f6cd12b59f1d3c771ca (diff)
downloadffmpeg-9d48e28f00c992cfc870726533e0d5b3b1390ee2.tar.gz
MIPS: add MIPS64 and Loongson asm for MAC64/MLS64
Originally committed as revision 18979 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mips')
-rw-r--r--libavcodec/mips/mathops.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/libavcodec/mips/mathops.h b/libavcodec/mips/mathops.h
new file mode 100644
index 0000000000..e763f7be9e
--- /dev/null
+++ b/libavcodec/mips/mathops.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MIPS_MATHOPS_H
+#define AVCODEC_MIPS_MATHOPS_H
+
+#include "config.h"
+
+#if HAVE_LOONGSON
+
+static inline av_const int64_t MAC64(int64_t d, int a, int b)
+{
+ int64_t m;
+ __asm__ ("dmult.g %1, %2, %3 \n\t"
+ "daddu %0, %0, %1 \n\t"
+ : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
+ return d;
+}
+#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
+
+static inline av_const int64_t MLS64(int64_t d, int a, int b)
+{
+ int64_t m;
+ __asm__ ("dmult.g %1, %2, %3 \n\t"
+ "dsubu %0, %0, %1 \n\t"
+ : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
+ return d;
+}
+#define MLS64(d, a, b) ((d) = MLS64(d, a, b))
+
+#elif ARCH_MIPS64
+
+static inline av_const int64_t MAC64(int64_t d, int a, int b)
+{
+ int64_t m;
+ __asm__ ("dmult %2, %3 \n\t"
+ "mflo %1 \n\t"
+ "daddu %0, %0, %1 \n\t"
+ : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
+ return d;
+}
+#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
+
+static inline av_const int64_t MLS64(int64_t d, int a, int b)
+{
+ int64_t m;
+ __asm__ ("dmult %2, %3 \n\t"
+ "mflo %1 \n\t"
+ "dsubu %0, %0, %1 \n\t"
+ : "+r"(d), "=&r"(m) : "r"(a), "r"(b));
+ return d;
+}
+#define MLS64(d, a, b) ((d) = MLS64(d, a, b))
+
+#endif
+
+#endif /* AVCODEC_MIPS_MATHOPS_H */