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/* 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
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