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Diffstat (limited to 'sim/testsuite/or1k/mfspr.S')
| -rw-r--r-- | sim/testsuite/or1k/mfspr.S | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/sim/testsuite/or1k/mfspr.S b/sim/testsuite/or1k/mfspr.S new file mode 100644 index 0000000..1aa74e1 --- /dev/null +++ b/sim/testsuite/or1k/mfspr.S @@ -0,0 +1,171 @@ +/* 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 |