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From: Gregor Jasny <jasny@vidsoft.de>
To: thierry.merle@free.fr
Cc: video4linux-list@redhat.com, v4l2-library@linuxtv.org
Subject: PATCH: libv4l-fix-idct-inline-assembly.diff
Date: Fri, 4 Jul 2008 16:40:37 +0200	[thread overview]
Message-ID: <20080704144036.GJ18818@vidsoft.de> (raw)

Hi,

This patch fixes the input constraint for the sar instruction. It allows only an
immediate or cl as shift width.

Thanks,
Gregor

Signed-off-by: Gregor Jasny <jasny@vidsoft.de>

diff -r 61deeffda900 v4l2-apps/lib/libv4l/libv4lconvert/jidctflt.c
--- a/v4l2-apps/lib/libv4l/libv4lconvert/jidctflt.c	Fri Jul 04 07:21:55 2008 +0200
+++ b/v4l2-apps/lib/libv4l/libv4lconvert/jidctflt.c	Fri Jul 04 16:24:33 2008 +0200
@@ -92,7 +92,7 @@ static inline unsigned char descale_and_
       "\tcmpl %4,%1\n"
       "\tcmovg %4,%1\n"
       : "=r"(x)
-      : "0"(x), "Ir"(shift), "ir"(1UL<<(shift-1)), "r" (0xff), "r" (0)
+      : "0"(x), "Ic"((unsigned char)shift), "ir"(1UL<<(shift-1)), "r" (0xff), "r" (0)
       );
   return x;
 }

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             reply	other threads:[~2008-07-04 14:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-04 14:40 Gregor Jasny [this message]
2008-07-04 15:07 ` PATCH: libv4l-fix-idct-inline-assembly.diff Hans de Goede
2008-07-04 17:35 ` Thierry Merle

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