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105 lines
2.0 KiB
PHP
105 lines
2.0 KiB
PHP
# MIPS simulator testsuite FPU utility functions.
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# Copyright (C) 2004-2024 Free Software Foundation, Inc.
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# Contributed by Chris Demetriou of Broadcom Corporation.
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#
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# This file is part of the GNU simulators.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>. */
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.macro enable_fpu fr
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mfc0 $20, $12
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or $20, $20, (1 << 29) | (\fr << 26)
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mtc0 $20, $20
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.endm
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###
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### Data movement macros
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###
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.macro ld_fp_df r, v
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.data
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1: .double \v
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.previous
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ldc1 \r, 1b
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.endm
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.macro ld_fp_di r, v
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.data
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1: .dword \v
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.previous
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ldc1 \r, 1b
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.endm
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.macro ld_fp_sf r, v
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.data
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1: .float \v
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.previous
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lwc1 \r, 1b
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.endm
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.macro ld_fp_si r, v
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.data
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1: .word \v
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.previous
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lwc1 \r, 1b
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.endm
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###
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### FP condition code manipulation macros
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###
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.macro clrset_fp_cc clr, set
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cfc1 $20, $31
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or $20, $20, (((\clr & 0xfe) << 24) | ((\clr & 0x01) << 23))
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xor $20, $20, (((\clr & 0xfe) << 24) | ((\clr & 0x01) << 23))
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or $20, $20, (((\set & 0xfe) << 24) | ((\set & 0x01) << 23))
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ctc1 $20, $31
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.endm
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.macro clr_fp_cc clr
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clrset_fp_cc \clr, 0
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.endm
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.macro set_fp_cc set
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clrset_fp_cc 0, \set
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.endm
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.macro get_fp_cc r
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.set push
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.set noat
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cfc1 $1, $31
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srl $1, $1, 23
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andi \r, $1, 0x1fc
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andi $1, $1, 0x1
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srl \r, \r, 1
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or \r, \r, $1
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.set pop
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.endm
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.macro ck_fp_cc v
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get_fp_cc $20
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xori $20, $20, \v
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bnez $20, _fail
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nop
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.endm
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.macro ckm_fp_cc v, mask
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get_fp_cc $20
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xori $20, $20, \v
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andi $20, $20, \mask
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bnez $20, _fail
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nop
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.endm
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