projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| b4f9e003 SH |
1 | /* Tests some basic fpu instructions. |
| 2 | ||
| 3 | Copyright (C) 2019 Free Software Foundation, Inc. | |
| 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(0x400921f9);\n | |
| 20 | # output: report(0xf01b866e);\n | |
| 21 | # output: report(0x4005bf09);\n | |
| 22 | # output: report(0x95aaf790);\n | |
| 23 | # output: report(0x00000000);\n | |
| 24 | # output: report(0x00001234);\n | |
| 25 | # output: \n | |
| 26 | # output: report(0x40b23400);\n | |
| 27 | # output: report(0x00000000);\n | |
| 28 | # output: report(0x40b23400);\n | |
| 29 | # output: report(0x00000000);\n | |
| 30 | # output: \n | |
| 31 | # output: report(0x40177081);\n | |
| 32 | # output: report(0xc2e33eff);\n | |
| 33 | # output: report(0x400921f9);\n | |
| 34 | # output: report(0xf01b866e);\n | |
| 35 | # output: \n | |
| 36 | # output: report(0x40211456);\n | |
| 37 | # output: report(0x587dfabf);\n | |
| 38 | # output: report(0x400921f9);\n | |
| 39 | # output: report(0xf01b866d);\n | |
| 40 | # output: \n | |
| 41 | # output: report(0x00000001);\n | |
| 42 | # output: \n | |
| 43 | # output: WARNING: ignoring fpu error caught in fast mode.\n | |
| 44 | # output: report(0x00000000);\n | |
| 45 | # output: \n | |
| 46 | # output: exit(0)\n | |
| 47 | ||
| 48 | #include "or1k-asm-test-helpers.h" | |
| 49 | ||
| 50 | STANDARD_TEST_ENVIRONMENT | |
| 51 | ||
| 52 | .section .exception_vectors | |
| 53 | ||
| 54 | /* Floating point exception. */ | |
| 55 | .org 0xd00 | |
| 56 | ||
| 57 | /* The handling is a bit dubious at present. We just patch the | |
| 58 | instruction with l.nop and restart. This will go wrong in branch | |
| 59 | delay slots. But we don't have those in this test. */ | |
| 60 | l.addi r1, r1, -EXCEPTION_STACK_SKIP_SIZE | |
| 61 | PUSH r2 | |
| 62 | PUSH r3 | |
| 63 | /* Save the address of the instruction that caused the problem. */ | |
| 64 | MOVE_FROM_SPR r2, SPR_EPCR_BASE | |
| 65 | LOAD_IMMEDIATE r3, 0x15000000 /* Opcode for l.nop */ | |
| 66 | l.sw -4(r2), r3 | |
| 67 | POP r3 | |
| 68 | POP r2 | |
| 69 | l.addi r1, r1, EXCEPTION_STACK_SKIP_SIZE | |
| 70 | l.rfe | |
| 71 | ||
| 72 | .section .data | |
| 73 | .align 4 | |
| 74 | .type pi, @object | |
| 75 | .size pi, 8 | |
| 76 | anchor: | |
| 77 | pi: | |
| 78 | .double 3.14159 | |
| 79 | ||
| 80 | .type e, @object | |
| 81 | .size e, 8 | |
| 82 | e: | |
| 83 | .double 2.71828 | |
| 84 | ||
| 85 | .type large, @object | |
| 86 | .size large, 8 | |
| 87 | large: | |
| 88 | .long 0 | |
| 89 | .long 0x1234 | |
| 90 | ||
| 91 | .section .text | |
| 92 | start_tests: | |
| 93 | PUSH LINK_REGISTER_R9 | |
| 94 | ||
| 95 | /* Test lf.itof.d int to double conversion. Setting up: | |
| 96 | * r11 pointer to data | |
| 97 | * r12,r13 pi as double | |
| 98 | * r14,r15 e as double | |
| 99 | * r16,r17 a long long | |
| 100 | */ | |
| 101 | l.ori r11, r0, ha(anchor) | |
| 102 | l.addi r11, r11, lo(anchor) | |
| 103 | l.lwz r12, 0(r11) | |
| 104 | l.lwz r13, 4(r11) | |
| 105 | ||
| 106 | l.lwz r14, 8(r11) | |
| 107 | l.lwz r15, 12(r11) | |
| 108 | ||
| 109 | l.lwz r16, 16(r11) | |
| 110 | l.lwz r18, 20(r11) | |
| 111 | ||
| 112 | /* Output to ensure we loaded it correctly. */ | |
| 113 | REPORT_REG_TO_CONSOLE r12 | |
| 114 | REPORT_REG_TO_CONSOLE r13 | |
| 115 | ||
| 116 | REPORT_REG_TO_CONSOLE r14 | |
| 117 | REPORT_REG_TO_CONSOLE r15 | |
| 118 | ||
| 119 | REPORT_REG_TO_CONSOLE r16 | |
| 120 | REPORT_REG_TO_CONSOLE r18 | |
| 121 | PRINT_NEWLINE_TO_CONSOLE | |
| 122 | ||
| 123 | /* Convert the big long to a double. */ | |
| 124 | lf.itof.d r16,r18, r16,r18 | |
| 125 | REPORT_REG_TO_CONSOLE r16 | |
| 126 | REPORT_REG_TO_CONSOLE r18 | |
| 127 | ||
| 128 | /* Convert the double back to a long, it should match before. */ | |
| 129 | lf.ftoi.d r16,r18, r16,r18 | |
| 130 | lf.itof.d r16,r18, r16,r18 | |
| 131 | ||
| 132 | REPORT_REG_TO_CONSOLE r16 | |
| 133 | REPORT_REG_TO_CONSOLE r18 | |
| 134 | ||
| 135 | PRINT_NEWLINE_TO_CONSOLE | |
| 136 | ||
| 137 | /* Add and subtract some double values. */ | |
| 138 | lf.add.d r12,r13, r12,r13, r14,r15 | |
| 139 | REPORT_REG_TO_CONSOLE r12 | |
| 140 | REPORT_REG_TO_CONSOLE r13 | |
| 141 | ||
| 142 | lf.sub.d r12,r13, r12,r13, r14,r15 | |
| 143 | REPORT_REG_TO_CONSOLE r12 | |
| 144 | REPORT_REG_TO_CONSOLE r13 | |
| 145 | PRINT_NEWLINE_TO_CONSOLE | |
| 146 | ||
| 147 | /* Multiply and divide double values. */ | |
| 148 | lf.mul.d r12,r13, r12,r13, r14,r15 | |
| 149 | REPORT_REG_TO_CONSOLE r12 | |
| 150 | REPORT_REG_TO_CONSOLE r13 | |
| 151 | ||
| 152 | lf.div.d r12,r13, r12,r13, r14,r15 | |
| 153 | REPORT_REG_TO_CONSOLE r12 | |
| 154 | REPORT_REG_TO_CONSOLE r13 | |
| 155 | PRINT_NEWLINE_TO_CONSOLE | |
| 156 | ||
| 157 | /* Test lf.sfge.s set flag if r6 >= r10. */ | |
| 158 | lf.sfge.d r12,r13, r14,r15 | |
| 159 | MOVE_FROM_SPR r2, SPR_SR | |
| 160 | REPORT_BIT_TO_CONSOLE r2, SPR_SR_F | |
| 161 | PRINT_NEWLINE_TO_CONSOLE | |
| 162 | ||
| 163 | /* Test raising an exception by dividing by 0. */ | |
| 164 | MOVE_FROM_SPR r2, SPR_FPCSR | |
| 165 | l.ori r2, r2, 0x1 | |
| 166 | MOVE_TO_SPR SPR_FPCSR, r2 | |
| 167 | div0: lf.div.d r2,r3, r12,r13, r0,r1 | |
| 168 | REPORT_EXCEPTION div0 | |
| 169 | PRINT_NEWLINE_TO_CONSOLE | |
| 170 | ||
| 171 | POP LINK_REGISTER_R9 | |
| 172 | RETURN_TO_LINK_REGISTER_R9 |