From e51de7f6fb5385c9df62842ce9cf92f9fd33f040 Mon Sep 17 00:00:00 2001
From: Brad Midgley <bmidgley@xmission.com>
Date: Wed, 30 Jan 2008 20:39:33 +0000
Subject: arm assembly version of MULA

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

diff --git a/sbc/sbc_math.h b/sbc/sbc_math.h
index 9aa8c366..8db67ca8 100644
--- a/sbc/sbc_math.h
+++ b/sbc/sbc_math.h
@@ -63,4 +63,14 @@ typedef long long sbc_extended_t;
 
 #define SBC_FIXED_0(val) { val = 0; }
 #define MUL(a, b)        ((sbc_extended_t)(a) * (b))
+#ifdef __arm__
+#define MULA(a, b, res) ({				\
+		long long tmp = res;			\
+		__asm__(				\
+			"smlal %Q0, %R0, %2, %3"	\
+			: "=&r" (tmp)			\
+			: "0" (tmp), "r" (a), "r" (b));	\
+		tmp; })
+#else
 #define MULA(a, b, res)  ((sbc_extended_t)(a) * (b) + (res))
+#endif
-- 
cgit