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-rw-r--r--sysdeps/m68k/fpu/k_sin.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/sysdeps/m68k/fpu/k_sin.c b/sysdeps/m68k/fpu/k_sin.c
index 8c6dfef720..3eed1d466c 100644
--- a/sysdeps/m68k/fpu/k_sin.c
+++ b/sysdeps/m68k/fpu/k_sin.c
@@ -16,7 +16,6 @@ License along with the GNU C Library; see the file COPYING.LIB.  If
 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
 Cambridge, MA 02139, USA.  */
 
-#include <ansidecl.h>
 #include <math.h>
 
 #ifndef FUNC
@@ -29,8 +28,17 @@ Cambridge, MA 02139, USA.  */
 #define __CONCATX(a,b) __CONCAT(a,b)
 
 float_type
-DEFUN(__CONCATX(__kernel_,FUNC), (x, y, iy),
-      float_type x AND float_type y AND int iy)
+__CONCATX(__kernel_,FUNC) (x, y, iy)
+     float_type x;
+     float_type y;
+     int iy;
 {
-  return __CONCATX(__,FUNC) (x + y);
+  float_type sin_x, cos_x, sin_y, cos_y;
+  if (iy == 0)
+    return __m81_u_(__CONCATX(__,FUNC)) (x);
+  __asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_x), "=f" (sin_x)
+			: "f" (x));
+  __asm__ __volatile__ ("fsincosx %2,%0:%1" : "=f" (cos_y), "=f" (sin_y)
+			: "f" (y));
+  return sin_x * cos_y + cos_x * sin_y;
 }