From 05a6e1afb3b0111e8fafcb8ca2d1ca8674390c11 Mon Sep 17 00:00:00 2001
From: Brad Midgley <bmidgley@xmission.com>
Date: Mon, 28 Jan 2008 17:32:36 +0000
Subject: arm-assembly from cidoca for MULA

---
 sbc/sbc_math.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'sbc')

diff --git a/sbc/sbc_math.h b/sbc/sbc_math.h
index 625d4dd0..68b0f197 100644
--- a/sbc/sbc_math.h
+++ b/sbc/sbc_math.h
@@ -65,5 +65,13 @@ typedef long long sbc_extended_t;
 #define ADD(dst, src)    { dst += src; }
 #define SUB(dst, src)    { dst -= src; }
 #define MUL(dst, a, b)   { dst = (sbc_extended_t) (a) * (b); }
-#define MULA(dst, a, b)  { dst += (sbc_extended_t) (a) * (b); }
 #define DIV2(dst, src)   { dst = ASR(src, 1); }
+
+#ifdef __arm__
+#define MULA(res, a, b) __asm__(               \
+               "smlal %Q0, %R0, %2, %3"        \
+               : "=&r" (res)                   \
+               : "0" (res), "r" (a), "r" (b));
+#else
+#define MULA(dst, a, b)  { dst += (sbc_extended_t) (a) * (b); }
+#endif
-- 
cgit