From 4c99f2cdbed8bb7e6c40cf9a057aa6569d6a33eb Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Thu, 24 Jun 2004 22:13:44 +0000
Subject: [PATCH] transmeta crusoe mmx detection by "Nobody/Anonymous - nobody"
/ sf feature request tracker
Originally committed as revision 3248 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/i386/cputest.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/libavcodec/i386/cputest.c b/libavcodec/i386/cputest.c
index b50d653c4d5..e4b1b515584 100644
--- a/libavcodec/i386/cputest.c
+++ b/libavcodec/i386/cputest.c
@@ -114,6 +114,17 @@ int mm_support(void)
if (eax & 0x01000000)
rval |= MM_MMXEXT;
return rval;
+ } else if (ebx == 0x756e6547 &&
+ edx == 0x54656e69 &&
+ ecx == 0x3638784d) {
+ /* Tranmeta Crusoe */
+ cpuid(0x80000000, eax, ebx, ecx, edx);
+ if ((unsigned)eax < 0x80000001)
+ return 0;
+ cpuid(0x80000001, eax, ebx, ecx, edx);
+ if ((edx & 0x00800000) == 0)
+ return 0;
+ return MM_MMX;
} else {
return 0;
}
--
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