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# MIPS simulator testsuite FPU utility functions.
# Copyright (C) 2004-2023 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/>. */
.macro enable_fpu fr
mfc0 $20, $12
or $20, $20, (1 << 29) | (\fr << 26)
mtc0 $20, $20
.endm
###
### Data movement macros
###
.macro ld_fp_df r, v
.data
1: .double \v
.previous
ldc1 \r, 1b
.endm
.macro ld_fp_di r, v
.data
1: .dword \v
.previous
ldc1 \r, 1b
.endm
.macro ld_fp_sf r, v
.data
1: .float \v
.previous
lwc1 \r, 1b
.endm
.macro ld_fp_si r, v
.data
1: .word \v
.previous
lwc1 \r, 1b
.endm
###
### FP condition code manipulation macros
###
.macro clrset_fp_cc clr, set
cfc1 $20, $31
or $20, $20, (((\clr & 0xfe) << 24) | ((\clr & 0x01) << 23))
xor $20, $20, (((\clr & 0xfe) << 24) | ((\clr & 0x01) << 23))
or $20, $20, (((\set & 0xfe) << 24) | ((\set & 0x01) << 23))
ctc1 $20, $31
.endm
.macro clr_fp_cc clr
clrset_fp_cc \clr, 0
.endm
.macro set_fp_cc set
clrset_fp_cc 0, \set
.endm
.macro get_fp_cc r
.set push
.set noat
cfc1 $1, $31
srl $1, $1, 23
andi \r, $1, 0x1fc
andi $1, $1, 0x1
srl \r, \r, 1
or \r, \r, $1
.set pop
.endm
.macro ck_fp_cc v
get_fp_cc $20
xori $20, $20, \v
bnez $20, _fail
nop
.endm
.macro ckm_fp_cc v, mask
get_fp_cc $20
xori $20, $20, \v
andi $20, $20, \mask
bnez $20, _fail
nop
.endm
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