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Date: Sat, 24 Jan 2004 14:49:58 +0100 From: Stephane Marchesin Subject: Re: [SDL] 3DNow! detection on a P4 system Well... I found another bug : 3dnow was detected on P2/P3 cpus. So I took one more look at the code and found a mistake in CPU_getCPUIDFeaturesExt : The condition for having extended cpuinfo is that when we query extended cpuinfo we get a result >= 0x80000001. So we must exit if eax < 0x80000001. The attached patch does that.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 24 Jan 2004 15:55:00 +0000
parents e5bc29de3f0a
children 355632dca928
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<HTML
><HEAD
><TITLE
>SDL_JoystickOpened</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.64
"><LINK
REL="HOME"
TITLE="SDL Library Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="Joystick"
HREF="joystick.html"><LINK
REL="PREVIOUS"
TITLE="SDL_JoystickOpen"
HREF="sdljoystickopen.html"><LINK
REL="NEXT"
TITLE="SDL_JoystickIndex"
HREF="sdljoystickindex.html"></HEAD
><BODY
CLASS="REFENTRY"
BGCOLOR="#FFF8DC"
TEXT="#000000"
LINK="#0000ee"
VLINK="#551a8b"
ALINK="#ff0000"
><DIV
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><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
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><TR
><TH
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>SDL Library Documentation</TH
></TR
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><TD
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><A
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>Prev</A
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><HR
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><H1
><A
NAME="SDLJOYSTICKOPENED"
>SDL_JoystickOpened</A
></H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN5740"
></A
><H2
>Name</H2
>SDL_JoystickOpened&nbsp;--&nbsp;Determine if a joystick has been opened</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN5743"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN5744"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_JoystickOpened</B
></CODE
>(int index);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN5750"
></A
><H2
>Description</H2
><P
>Determines whether a joystick has already been opened within the application. <TT
CLASS="PARAMETER"
><I
>index</I
></TT
> refers to the N'th joystick on the system.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN5754"
></A
><H2
>Return Value</H2
><P
>Returns <SPAN
CLASS="RETURNVALUE"
>1</SPAN
> if the joystick has been opened, or <SPAN
CLASS="RETURNVALUE"
>0</SPAN
> if it has not.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN5759"
></A
><H2
>See Also</H2
><P
><A
HREF="sdljoystickopen.html"
><TT
CLASS="FUNCTION"
>SDL_JoystickOpen</TT
></A
>,
<A
HREF="sdljoystickclose.html"
><TT
CLASS="FUNCTION"
>SDL_JoystickClose</TT
></A
></P
></DIV
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><A
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>Prev</A
></TD
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>Home</A
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>SDL_JoystickOpen</TD
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>