From e6fc55b07b7adba8c1880f967dfd119f2a7c8faf Mon Sep 17 00:00:00 2001
From: rubidium <rubidium@openttd.org>
Date: Fri, 3 Jan 2014 13:29:12 +0000
Subject: (svn r26219) -Fix: cpuid code still didn't work right in some
 situations

---
 src/cpu.cpp | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/src/cpu.cpp b/src/cpu.cpp
index b1d1c328f..e6a8656c2 100644
--- a/src/cpu.cpp
+++ b/src/cpu.cpp
@@ -98,20 +98,11 @@ void ottd_cpuid(int info[4], int type)
 {
 	/* The easy variant would be just cpuid, however... ebx gets clobbered by PIC. */
 	__asm__ __volatile__ (
-#if defined(__x86_64__)
-			"pushq %%rbx    \n\t" // save %rbx
-#else
-			"pushl %%ebx    \n\t" // save %ebx
-#endif
-			"cpuid          \n\t"
-			"movl %%ebx, %1 \n\t" // write the result into output var
-#if defined(__x86_64__)
-			"popq %%rbx     \n\t" // restore %rbx
-#else
-			"popl %%ebx     \n\t" // restore %ebc
-#endif
+			"xchgl %%ebx, %1 \n\t"
+			"cpuid           \n\t"
+			"xchgl %%ebx, %1 \n\t"
 			: "=a" (info[0]), "=r" (info[1]), "=c" (info[2]), "=d" (info[3])
-			: "a" (type)
+			: "0" (type)
 	);
 }
 #else
-- 
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