From 5947e49f467cdf3cf5d2acfcc3c0bd6f97ab29f7 Mon Sep 17 00:00:00 2001
From: Thom Johansen <thomj@rockbox.org>
Date: Sat, 28 Jan 2006 21:21:21 +0000
Subject: Make Tremor usable on ARM targets.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8475 a1c6a512-1295-4272-9138-f99709370657
---
 apps/codecs/Tremor/asm_arm.h       | 27 +++++++++++----------------
 apps/codecs/Tremor/config-tremor.h |  4 ++++
 apps/codecs/Tremor/floor0.c        |  2 ++
 3 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/apps/codecs/Tremor/asm_arm.h b/apps/codecs/Tremor/asm_arm.h
index 3a3716df1f..e623ce9b3d 100644
--- a/apps/codecs/Tremor/asm_arm.h
+++ b/apps/codecs/Tremor/asm_arm.h
@@ -46,22 +46,17 @@ static inline ogg_int32_t MULT31_SHIFT15(ogg_int32_t x, ogg_int32_t y) {
 
 #define MB() asm volatile ("" : : : "memory")
 
-static inline void XPROD32(ogg_int32_t  a, ogg_int32_t  b,
-			   ogg_int32_t  t, ogg_int32_t  v,
-			   ogg_int32_t *x, ogg_int32_t *y)
-{
-  int x1, y1, l;
-  asm(	"smull	%0, %1, %4, %6\n\t"
-	"smlal	%0, %1, %5, %7\n\t"
-	"rsb	%3, %4, #0\n\t"
-	"smull	%0, %2, %5, %6\n\t"
-	"smlal	%0, %2, %3, %7"
-	: "=&r" (l), "=&r" (x1), "=&r" (y1), "=r" (a)
-	: "3" (a), "r" (b), "r" (t), "r" (v)
-	: "cc" );
-  *x = x1;
-  MB();
-  *y = y1;
+#define XPROD32(a, b, t, v, x, y) \
+{ \
+  long l; \
+  asm(	"smull	%0, %1, %4, %6\n\t" \
+	"smlal	%0, %1, %5, %7\n\t" \
+	"rsb	%3, %4, #0\n\t" \
+	"smull	%0, %2, %5, %6\n\t" \
+	"smlal	%0, %2, %3, %7" \
+	: "=&r" (l), "=&r" (x), "=&r" (y), "=r" ((a)) \
+	: "3" ((a)), "r" ((b)), "r" ((t)), "r" ((v)) \
+	: "cc" ); \
 }
 
 static inline void XPROD31(ogg_int32_t  a, ogg_int32_t  b,
diff --git a/apps/codecs/Tremor/config-tremor.h b/apps/codecs/Tremor/config-tremor.h
index 402feb5363..f4a0e1c0bf 100644
--- a/apps/codecs/Tremor/config-tremor.h
+++ b/apps/codecs/Tremor/config-tremor.h
@@ -1,4 +1,8 @@
 #include "../codec.h" 
+#ifdef CPU_ARM
+#define _ARM_ASSEM_
+#endif
+
 #ifdef ROCKBOX_BIG_ENDIAN
 #define BIG_ENDIAN 1
 #define LITTLE_ENDIAN 0
diff --git a/apps/codecs/Tremor/floor0.c b/apps/codecs/Tremor/floor0.c
index 8ea36aba2a..c412f71ddd 100644
--- a/apps/codecs/Tremor/floor0.c
+++ b/apps/codecs/Tremor/floor0.c
@@ -173,6 +173,8 @@ void vorbis_lsp_to_curve(ogg_int32_t *curve,int *map,int n,int ln,
     ogg_int32_t wi=icos[k];
 
 #ifdef _V_LSP_MATH_ASM
+    (void)shift; /* kill warnings */
+    (void)j;
     lsp_loop_asm(&qi,&pi,&qexp,ilsp,wi,m);
 
     pi=((pi*pi)>>16);
-- 
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