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Date: Sat, 2 Feb 2008 22:08:05 +0100 From: Marcus von Appen To: sdl@lists.libsdl.org Subject: [SDL] [Patch] SDL-1.2 SDL_revcpy() asm patch for the cld flag Hi, as reported through the FreeBSD bug tracking system in SDL 1.2.13 (and in the 1.2 branch, if I see that correctly) the SDL_revcpy() macro sets the direction flag (std), but does not clear it afterwards (cld), which is wrong according to the GCC and SYS V specs. This can cause some weird side effects, which in turn can lead to memory corruption. You can read the full report with a detailed description and test program at http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/120052 Attached is the submitted patch, which fixes the issue. Regards Marcus
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 04 Feb 2008 17:22:56 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_CDNumDrives</TITLE
><META
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><H1
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NAME="SDLCDNUMDRIVES"
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>SDL_CDNumDrives</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN7218"
></A
><H2
>Name</H2
>SDL_CDNumDrives&nbsp;--&nbsp;Returns the number of CD-ROM drives on the system.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN7221"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN7222"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_CDNumDrives</B
></CODE
>(void);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7228"
></A
><H2
>Description</H2
><P
>Returns the number of CD-ROM drives on the system.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7231"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlcdopen.html"
><TT
CLASS="FUNCTION"
>SDL_CDOpen</TT
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