| /* Tests instructions l.mfspr and l.mtspr. |
| |
| Copyright (C) 2017-2021 Free Software Foundation, Inc. |
| |
| 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/>. */ |
| |
| # mach: or1k |
| # output: report(0x00000000);\n |
| # output: report(0x00002801);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00002801);\n |
| # output: report(0x00000000);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00002801);\n |
| # output: report(0x00002801);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00000801);\n |
| # output: report(0x00002000);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00002000);\n |
| # output: report(0x00000801);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00002801);\n |
| # output: report(0x00000001);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00000800);\n |
| # output: report(0x00002801);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00000000);\n |
| # output: report(0x00002801);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00002801);\n |
| # output: report(0x00000000);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00002801);\n |
| # output: report(0x00002801);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00000801);\n |
| # output: report(0x00002000);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00002000);\n |
| # output: report(0x00000801);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00002801);\n |
| # output: report(0x00000001);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: report(0x00000800);\n |
| # output: report(0x00002801);\n |
| # output: report(0xdeadbeef);\n |
| # output: \n |
| # output: exit(0)\n |
| |
| #include "or1k-asm-test-env.h" |
| |
| #define MACLO_VAL 0xdeadbeef |
| |
| /* A macro to carry out a test of l.mfspr. |
| |
| MACLO (0x2801) is used as the SPR, since it can be read and |
| cleared using l.macrc and can be set using l.maci. spr_number |
| and immediate_val_to_or should be chosen to address this |
| register. |
| |
| The value placed in the register is entirely arbitrary - we use |
| 0xdeadbeef. */ |
| |
| .macro TEST_MFSPR spr_number, immediate_val_to_or |
| REPORT_IMMEDIATE_TO_CONSOLE \spr_number |
| REPORT_IMMEDIATE_TO_CONSOLE \immediate_val_to_or |
| /* Write MACLO_VAL to MACLO. */ |
| l.macrc r2 |
| LOAD_IMMEDIATE r2, MACLO_VAL |
| l.maci r2, 1 |
| LOAD_IMMEDIATE r5, \spr_number |
| l.mfspr r4, r5, \immediate_val_to_or |
| REPORT_REG_TO_CONSOLE r4 |
| PRINT_NEWLINE_TO_CONSOLE |
| .endm |
| |
| /* A macro to carry out a test of l.mtspr |
| |
| MACLO (0x2801) is used as the SPR, since it can be read and |
| cleared using l.macrc and can be set using l.maci. The |
| arguments spr_number and immediate_val_to_or should be chosen |
| to address this register. |
| |
| The value placed in the register is entirely arbitrary - we use |
| 0xdeadbeef. */ |
| |
| .macro TEST_MTSPR spr_number, immediate_val_to_or |
| REPORT_IMMEDIATE_TO_CONSOLE \spr_number |
| REPORT_IMMEDIATE_TO_CONSOLE \immediate_val_to_or |
| /* Clear MACLO */ |
| l.macrc r2 |
| LOAD_IMMEDIATE r4, MACLO_VAL |
| LOAD_IMMEDIATE r5, \spr_number |
| l.mtspr r5, r4, \immediate_val_to_or |
| /* Retrieve MACLO. */ |
| l.macrc r4 |
| REPORT_REG_TO_CONSOLE r4 |
| PRINT_NEWLINE_TO_CONSOLE |
| .endm |
| |
| STANDARD_TEST_ENVIRONMENT |
| |
| .section .text |
| start_tests: |
| PUSH LINK_REGISTER_R9 |
| |
| /* Test the l.mfspr instruction with a range of operands. */ |
| |
| /* Move a test value using zero in the register. */ |
| TEST_MFSPR SPR_VR, SPR_MACLO /* 0x0000, 0x2801 */ |
| |
| /* Move a test value using zero as the constant. */ |
| TEST_MFSPR SPR_MACLO, SPR_VR /* 0x2801, 0x0000 */ |
| |
| /* Move a test value using non-zero in both register and constant. */ |
| |
| /* Some of these values will not give the correct result if OR |
| rather than ADD is used to determine the SPR address. */ |
| TEST_MFSPR SPR_MACLO, SPR_MACLO /* 0x2801, 0x2801 */ |
| TEST_MFSPR SPR_DMMUPR, SPR_ICCR /* 0x0801, 0x2000 */ |
| TEST_MFSPR SPR_ICCR, SPR_DMMUPR /* 0x2000, 0x0801 */ |
| TEST_MFSPR SPR_MACLO, SPR_UPR /* 0x2801, 0x0001 */ |
| TEST_MFSPR SPR_DMMUCR, SPR_MACLO /* 0x0800, 0x2801 */ |
| |
| /* Test the l.mtspr instruction with a range of operands. */ |
| |
| /* Move a test value using zero in the register. */ |
| TEST_MTSPR SPR_VR, SPR_MACLO /* 0x0000, 0x2801 */ |
| |
| /* Move a test value using zero as the constant. */ |
| TEST_MTSPR SPR_MACLO, SPR_VR /* 0x2801, 0x0000 */ |
| |
| /* Move a test value using non-zero in both register and constant. */ |
| |
| /* Some of these values will not give the correct result if or |
| rather than add is used to determine the SPR address. */ |
| TEST_MTSPR SPR_MACLO, SPR_MACLO /* 0x2801, 0x2801 */ |
| TEST_MTSPR SPR_DMMUPR, SPR_ICCR /* 0x0801, 0x2000 */ |
| TEST_MTSPR SPR_ICCR, SPR_DMMUPR /* 0x2000, 0x0801 */ |
| TEST_MTSPR SPR_MACLO, SPR_UPR /* 0x2801, 0x0001 */ |
| TEST_MTSPR SPR_DMMUCR, SPR_MACLO /* 0x0800, 0x2801 */ |
| |
| POP LINK_REGISTER_R9 |
| RETURN_TO_LINK_REGISTER_R9 |
