| 1 | # MIPS simulator testsuite FPU utility functions. |
| 2 | # Copyright (C) 2004-2013 Free Software Foundation, Inc. |
| 3 | # Contributed by Chris Demetriou of Broadcom Corporation. |
| 4 | # |
| 5 | # This file is part of the GNU simulators. |
| 6 | # |
| 7 | # This program is free software; you can redistribute it and/or modify |
| 8 | # it under the terms of the GNU General Public License as published by |
| 9 | # the Free Software Foundation; either version 3 of the License, or |
| 10 | # (at your option) any later version. |
| 11 | # |
| 12 | # This program is distributed in the hope that it will be useful, |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | # GNU General Public License for more details. |
| 16 | # |
| 17 | # You should have received a copy of the GNU General Public License |
| 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | .macro enable_fpu fr |
| 21 | mfc0 $20, $12 |
| 22 | or $20, $20, (1 << 29) | (\fr << 26) |
| 23 | mtc0 $20, $20 |
| 24 | .endm |
| 25 | |
| 26 | ### |
| 27 | ### Data movement macros |
| 28 | ### |
| 29 | |
| 30 | .macro ld_fp_df r, v |
| 31 | .data |
| 32 | 1: .double \v |
| 33 | .previous |
| 34 | ldc1 \r, 1b |
| 35 | .endm |
| 36 | |
| 37 | .macro ld_fp_di r, v |
| 38 | .data |
| 39 | 1: .dword \v |
| 40 | .previous |
| 41 | ldc1 \r, 1b |
| 42 | .endm |
| 43 | |
| 44 | .macro ld_fp_sf r, v |
| 45 | .data |
| 46 | 1: .float \v |
| 47 | .previous |
| 48 | lwc1 \r, 1b |
| 49 | .endm |
| 50 | |
| 51 | .macro ld_fp_si r, v |
| 52 | .data |
| 53 | 1: .word \v |
| 54 | .previous |
| 55 | lwc1 \r, 1b |
| 56 | .endm |
| 57 | |
| 58 | |
| 59 | ### |
| 60 | ### FP condition code manipulation macros |
| 61 | ### |
| 62 | |
| 63 | .macro clrset_fp_cc clr, set |
| 64 | cfc1 $20, $31 |
| 65 | or $20, $20, (((\clr & 0xfe) << 24) | ((\clr & 0x01) << 23)) |
| 66 | xor $20, $20, (((\clr & 0xfe) << 24) | ((\clr & 0x01) << 23)) |
| 67 | or $20, $20, (((\set & 0xfe) << 24) | ((\set & 0x01) << 23)) |
| 68 | ctc1 $20, $31 |
| 69 | .endm |
| 70 | |
| 71 | .macro clr_fp_cc clr |
| 72 | clrset_fp_cc \clr, 0 |
| 73 | .endm |
| 74 | |
| 75 | .macro set_fp_cc set |
| 76 | clrset_fp_cc 0, \set |
| 77 | .endm |
| 78 | |
| 79 | .macro get_fp_cc r |
| 80 | .set push |
| 81 | .set noat |
| 82 | cfc1 $1, $31 |
| 83 | srl $1, $1, 23 |
| 84 | andi \r, $1, 0x1fc |
| 85 | andi $1, $1, 0x1 |
| 86 | srl \r, \r, 1 |
| 87 | or \r, \r, $1 |
| 88 | .set pop |
| 89 | .endm |
| 90 | |
| 91 | .macro ck_fp_cc v |
| 92 | get_fp_cc $20 |
| 93 | xori $20, $20, \v |
| 94 | bnez $20, _fail |
| 95 | nop |
| 96 | .endm |
| 97 | |
| 98 | .macro ckm_fp_cc v, mask |
| 99 | get_fp_cc $20 |
| 100 | xori $20, $20, \v |
| 101 | andi $20, $20, \mask |
| 102 | bnez $20, _fail |
| 103 | nop |
| 104 | .endm |