dnl x86 pentium time stamp counter access routine.
dnl Copyright 1999, 2000 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl The GNU MP Library is free software; you can redistribute it and/or
dnl modify it under the terms of the GNU Lesser General Public License as
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dnl Lesser General Public License for more details.
dnl You should have received a copy of the GNU Lesser General Public
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C void speed_cyclecounter (unsigned p);
C Get the pentium rdtsc cycle counter, storing the least significant word in
C p and the most significant in p.
C cpuid is used to serialize execution. On big measurements this won't be
C significant but it may help make small single measurements more accurate.
xorl %eax, %eax
movl PARAM_P, %ebx
movl %eax, (%ebx)
movl %edx, 4(%ebx)