##=============================================================================####      linux.S####      Linux setup####=============================================================================#####COPYRIGHTBEGIN###### -------------------------------------------# The contents of this file are subject to the Cygnus eCos Public License# Version 1.0 (the "License"); you may not use this file except in# compliance with the License.  You may obtain a copy of the License at# http://sourceware.cygnus.com/ecos# # Software distributed under the License is distributed on an "AS IS"# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the# License for the specific language governing rights and limitations under# the License.# # The Original Code is eCos - Embedded Cygnus Operating System, released# September 30, 1998.# # The Initial Developer of the Original Code is Cygnus.  Portions created# by Cygnus are Copyright (C) 1998, 1999 Cygnus Solutions.  # All Rights Reserved.# -------------------------------------------######COPYRIGHTEND######=============================================================================#######DESCRIPTIONBEGIN######## Author(s):   jskov## Contributors:jskov## Date:        1999-03-11## Purpose:     Linux setup## Description: This file contains any code needed to initialize the##              CPU on an i386/Linux synthetic target.########DESCRIPTIONEND########=============================================================================        .globl  cyg_hal_hardware_initcyg_hal_hardware_init:        push   %ebp        mov    %esp,%ebp        sub    $0x4,%esp        ## FIXME: The below turns out to have no effect. At some point        ## before the cause_fpe test of signal2.c gets executes, the        ## flags have been reverted. Don't know what's causing it. Are        ## magic Linux calls required perhaps?        ## Maybe it is because a segv happens before the FPE..        ## Enable floating point exceptions. Bit mask:        ##  1 - invalid operation        ##  2 - denormalized operand        ##  4 - zero divide        ##  8 - overflow        ## 16 - underflow        ## 32 - precision        fstcw  -4(%ebp)        movl   -4(%ebp),%eax        andb   $(~0x04),%al        movl   %eax,-4(%ebp)        fldcw  -4(%ebp)        mov    %ebp,%esp        pop    %ebp        ret#------------------------------------------------------------------------------# end of linux.S