Changeset 0a306cee0a5040ccbe9073a129753b7945911826

Timestamp:

02/02/04 00:02:02 (5 years ago)

Author:

Sigmund Augdal Helberg <sigmunau@videolan.org>

git-committer:

Sigmund Augdal Helberg <sigmunau@videolan.org> 1075676522 +0000

git-parent:

[675864e25602627b2128e1ff0d8570a1b668da87]

git-author:

Sigmund Augdal Helberg <sigmunau@videolan.org> 1075676522 +0000

Message:

src/misc/cpu.c:

• SSE2 detection, using a similar approch as for SSE
  

Files:

• src/misc/cpu.c (modified) (2 diffs)

src/misc/cpu.c

@@ -3 +3 @@
- *****************************************************************************
- * Copyright (C) 1998-2004 VideoLAN
-3 2004/01/20 15:34:44 hartman
+4 2004/02/01 23:02:02 sigmunau
- *
- * Authors: Samuel Hocevar <sam@zoy.org>
@@ -186 +186 @@
-#   endif
-    }
+    if( i_edx & 0x04000000 )
+    {
+#   ifdef CAN_COMPILE_SSE
+        /* We test if OS supports the SSE instructions */
+        psz_capability = "SSE2";
+        i_illegal = 0;
+
+        if( setjmp( env ) == 0 )
+        {
+            /* Test a SSE2 instruction */
+            __asm__ __volatile__ ( "movupd %%xmm0, %%xmm0\n" : : );
+        }
+
+        if( i_illegal == 0 )
+        {
+            i_capabilities |= CPU_CAPABILITY_SSE2;
+        }
+#   endif
+    }
-
-    /* test for additional capabilities */