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/* Tests the jump instructions.
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(0x48000000);\n
# output: report(0x00000005);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x48000000);\n
# output: report(0x00000009);\n
# output: report(0x00000000);\n
# output: report(0x00000001);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x44000000);\n
# output: report(0x00000005);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: report(0x44000000);\n
# output: report(0x00000009);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: report(0x00000000);\n
# output: \n
# output: exit(0)\n
#include "or1k-asm-test-helpers.h"
/* Tests a jump instruction using a register destination.
Checks whether the jump succeeds, or whether an exception is triggered
(but not if the right exception was triggered yet).
We manually construct the opcode, to allow us to force R9 into the
destination field, to test exception handling. Usually the assembler
would prevent this.
Do not specify R31 as the register to use for the jump, as it's used
internally. */
.macro TEST_JUMP opcode_value dest_register_number alignment_offset
REPORT_IMMEDIATE_TO_CONSOLE \opcode_value
REPORT_IMMEDIATE_TO_CONSOLE \dest_register_number
REPORT_IMMEDIATE_TO_CONSOLE \alignment_offset
LOAD_IMMEDIATE r\dest_register_number, 51f + \alignment_offset
/* Generate the jump opcode. */
\@1$: OR1K_DELAYED_NOP \
(.word ( \opcode_value | (\dest_register_number << 11) ))
/* If the jump failed, we land here. */
REPORT_IMMEDIATE_TO_CONSOLE 1
OR1K_DELAYED_NOP (l.j 52f)
/* If the jump succeeds, we land here. */
51: REPORT_IMMEDIATE_TO_CONSOLE 0
52: REPORT_EXCEPTION \@1$
PRINT_NEWLINE_TO_CONSOLE
.endm
STANDARD_TEST_ENVIRONMENT
.section .text
start_tests:
PUSH LINK_REGISTER_R9
/* Test l.jalr (jump and link register) */
TEST_JUMP 0x48000000, 5, 0
/* TODO: The sim does not support unaligned memory access yet.
TEST_JUMP 0x48000000, 5, 1
TEST_JUMP 0x48000000, 5, 2
TEST_JUMP 0x48000000, 5, 3
*/
/* Test with link register as the destination. This is not
allowed. */
TEST_JUMP 0x48000000, 9, 0
/* Test l.jr (jump register) */
TEST_JUMP 0x44000000, 5, 0
/* TODO: The sim does not support unaligned memory access yet.
TEST_JUMP 0x44000000, 5, 1
TEST_JUMP 0x44000000, 5, 2
TEST_JUMP 0x44000000, 5, 3
*/
/* Test with link register as the destination. */
TEST_JUMP 0x44000000, 9, 0
POP LINK_REGISTER_R9
RETURN_TO_LINK_REGISTER_R9
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