[PD-cvs] pd/src m_simd_sse_gcc.c,1.1.4.13.2.3,1.1.4.13.2.4

[Tim Blechmann]

Update of /cvsroot/pure-data/pd/src
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27310

Modified Files:
      Tag: devel_0_39
	m_simd_sse_gcc.c 
Log Message:
push/pop seems more secure

Index: m_simd_sse_gcc.c
===================================================================
RCS file: /cvsroot/pure-data/pd/src/Attic/m_simd_sse_gcc.c,v
retrieving revision 1.1.4.13.2.3
retrieving revision 1.1.4.13.2.4
diff -C2 -d -r1.1.4.13.2.3 -r1.1.4.13.2.4
*** m_simd_sse_gcc.c	23 Dec 2005 11:32:49 -0000	1.1.4.13.2.3
--- m_simd_sse_gcc.c	10 Jan 2006 20:28:13 -0000	1.1.4.13.2.4
***************
*** 950,961 ****
  int simd_runtime_check()
  {
!     unsigned int eax, edx;
!     __asm__("mov  %%bx, %%si \n"
!             "cpuid           \n"
!             "xchg %%bx, %%si \n"
! 		: "=a"(eax),"=d"(edx)
!         : "a" (1)
!         : "cx", "si");
!     return (0x2000000 & edx);
  }
  
--- 950,960 ----
  int simd_runtime_check()
  {
!     unsigned int eax, edx, ret;
!     __asm__("push %%ebx \n" /* ebx might be used as PIC register :-( */
!         "cpuid      \n"
!         "pop  %%ebx \n"
!  		: "=a"(eax),"=d"(edx) : "a" (1): "cx");
!     ret = 0x2000000 & edx;
!     return (ret);
  }