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- # MIPS simulator testsuite FPU utility functions.
- # Copyright (C) 2004-2022 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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