Subversion Repositories openrisc

# MIPS simulator testsuite MDMX utility functions.
# Copyright (C) 2004, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
# Contributed by Chris Demetriou of Broadcom Corporation.
#
# This file is part of the GNU simulators.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

        .include "utils-fpu.inc"

        ###
        ### Shared macros
        ###

        # Enable MDMX: enable the FPU w/ FR=1, then set Status.MX
        .macro  enable_mdmx
        enable_fpu 1
        mfc0    $20, $12
        or      $20, $20, (1 << 24)
        mtc0    $20, $12
        .endm


        ###
        ### .OB-format macros
        ###

        .macro ld_ob r, v
        .data
1:      .dword  \v
        .previous
        ldc1    \r, 1b
        .endm

        .macro ck_ob r, v
        .data
1:      .dword  \v
        .previous
        dmfc1   $20, \r
        ld      $21, 1b
        bne     $20, $21, _fail
         nop
        .endm

        .macro ld_acc_ob h, m, l
        ld_ob   $f20, \m
        ld_ob   $f21, \l
        wacl.ob $f20, $f21
        ld_ob   $f20, \h
        wach.ob $f20
        .endm

        .macro ck_acc_ob h, m, l
        rach.ob $f20
        ck_ob   $f20, \h
        racm.ob $f20
        ck_ob   $f20, \m
        racl.ob $f20
        ck_ob   $f20, \l
        .endm