projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 702d582e PG |
1 | /* Tests some basic fpu instructions. |
| 2 | ||
| b811d2c2 | 3 | Copyright (C) 2017-2020 Free Software Foundation, Inc. |
| 702d582e PG |
4 | |
| 5 | This program is free software; you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU General Public License as published by | |
| 7 | the Free Software Foundation; either version 3 of the License, or | |
| 8 | (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU General Public License | |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 17 | ||
| 18 | # mach: or1k | |
| 19 | # output: report(0x00007ab7);\n | |
| 20 | # output: report(0xffffd8f0);\n | |
| 21 | # output: report(0x46f56e00);\n | |
| 22 | # output: report(0xc61c4000);\n | |
| 23 | # output: report(0x00007ab7);\n | |
| 24 | # output: report(0xffffd8f0);\n | |
| 25 | # output: \n | |
| 26 | # output: report(0xc0490e56);\n | |
| 27 | # output: report(0xfffffffd);\n | |
| 28 | # output: \n | |
| 29 | # output: report(0x4e6b4bbb);\n | |
| 30 | # output: \n | |
| 31 | # output: report(0xbdc0be40);\n | |
| 32 | # output: \n | |
| 33 | # output: report(0x00000001);\n | |
| 34 | # output: \n | |
| 35 | # output: WARNING: ignoring fpu error caught in fast mode.\n | |
| 36 | # output: report(0x00000000);\n | |
| 37 | # output: \n | |
| 38 | # output: exit(0)\n | |
| 39 | ||
| 40 | #include "or1k-asm-test-helpers.h" | |
| 41 | ||
| 42 | STANDARD_TEST_ENVIRONMENT | |
| 43 | ||
| 44 | .section .exception_vectors | |
| 45 | ||
| 46 | /* Floating point exception. */ | |
| 47 | .org 0xd00 | |
| 48 | ||
| 49 | /* The handling is a bit dubious at present. We just patch the | |
| 50 | instruction with l.nop and restart. This will go wrong in branch | |
| 51 | delay slots. But we don't have those in this test. */ | |
| 52 | l.addi r1, r1, -EXCEPTION_STACK_SKIP_SIZE | |
| 53 | PUSH r2 | |
| 54 | PUSH r3 | |
| 55 | /* Save the address of the instruction that caused the problem. */ | |
| 56 | MOVE_FROM_SPR r2, SPR_EPCR_BASE | |
| 57 | LOAD_IMMEDIATE r3, 0x15000000 /* Opcode for l.nop */ | |
| 58 | l.sw -4(r2), r3 | |
| 59 | POP r3 | |
| 60 | POP r2 | |
| 61 | l.addi r1, r1, EXCEPTION_STACK_SKIP_SIZE | |
| 62 | l.rfe | |
| 63 | ||
| 64 | .section .text | |
| 65 | start_tests: | |
| 66 | PUSH LINK_REGISTER_R9 | |
| 67 | ||
| 68 | /* Test lf.itof.s int to float conversion. Setting up: | |
| 69 | * r10 31415.0f | |
| 70 | * r12 -10000.0f | |
| 71 | */ | |
| 72 | l.ori r11, r0, 31415 | |
| 73 | l.ori r13, r0, -10000 | |
| 74 | l.movhi r15, 0xffff | |
| 75 | l.or r13, r13, r15 | |
| 76 | ||
| 77 | REPORT_REG_TO_CONSOLE r11 | |
| 78 | REPORT_REG_TO_CONSOLE r13 | |
| 79 | lf.itof.s r10, r11 | |
| 80 | lf.itof.s r12, r13 | |
| 81 | REPORT_REG_TO_CONSOLE r10 | |
| 82 | REPORT_REG_TO_CONSOLE r12 | |
| 83 | ||
| 84 | /* Test lf.ftoi.s float to int conversion. */ | |
| 85 | lf.ftoi.s r11, r10 | |
| 86 | lf.ftoi.s r13, r12 | |
| 87 | REPORT_REG_TO_CONSOLE r11 | |
| 88 | REPORT_REG_TO_CONSOLE r13 | |
| 89 | PRINT_NEWLINE_TO_CONSOLE | |
| 90 | ||
| 91 | /* Test lf.div.s divide 31415 by -1000 to get -pi. Setting up: | |
| 92 | * r8 -3.1415f | |
| 93 | */ | |
| 94 | lf.div.s r8, r10, r12 | |
| 95 | REPORT_REG_TO_CONSOLE r8 | |
| 96 | ||
| 97 | lf.ftoi.s r11, r8 | |
| 98 | REPORT_REG_TO_CONSOLE r11 | |
| 99 | PRINT_NEWLINE_TO_CONSOLE | |
| 100 | ||
| 101 | /* Test lf.mul.s multiply -pi x -10000 x 31415. Setting up: | |
| 102 | * r6 986902225 | |
| 103 | */ | |
| 104 | lf.mul.s r6, r8, r12 | |
| 105 | lf.mul.s r6, r6, r10 | |
| 106 | REPORT_REG_TO_CONSOLE r6 | |
| 107 | PRINT_NEWLINE_TO_CONSOLE | |
| 108 | ||
| 109 | /* Test lf.rem.s remainder of 986902225 / -pi. */ | |
| 110 | lf.rem.s r2, r6, r8 | |
| 111 | REPORT_REG_TO_CONSOLE r2 | |
| 112 | PRINT_NEWLINE_TO_CONSOLE | |
| 113 | ||
| 114 | /* Test lf.sfge.s set flag if r6 >= r10. */ | |
| 115 | lf.sfge.s r6, r10 | |
| 116 | MOVE_FROM_SPR r2, SPR_SR | |
| 117 | REPORT_BIT_TO_CONSOLE r2, SPR_SR_F | |
| 118 | PRINT_NEWLINE_TO_CONSOLE | |
| 119 | ||
| 120 | /* Test raising an exception by dividing by 0. */ | |
| 121 | MOVE_FROM_SPR r2, SPR_FPCSR | |
| 122 | l.ori r2, r2, 0x1 | |
| 123 | MOVE_TO_SPR SPR_FPCSR, r2 | |
| 124 | div0: lf.div.s r2, r8, r0 | |
| 125 | REPORT_EXCEPTION div0 | |
| 126 | PRINT_NEWLINE_TO_CONSOLE | |
| 127 | ||
| 128 | POP LINK_REGISTER_R9 | |
| 129 | RETURN_TO_LINK_REGISTER_R9 |