105 lines
3.3 KiB
ArmAsm
105 lines
3.3 KiB
ArmAsm
/* Tests the jump instructions.
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Copyright (C) 2017-2022 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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# mach: or1k
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# output: report(0x48000000);\n
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# output: report(0x00000005);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x48000000);\n
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# output: report(0x00000009);\n
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# output: report(0x00000000);\n
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# output: report(0x00000001);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x44000000);\n
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# output: report(0x00000005);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: report(0x44000000);\n
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# output: report(0x00000009);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: report(0x00000000);\n
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# output: \n
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# output: exit(0)\n
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#include "or1k-asm-test-helpers.h"
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/* Tests a jump instruction using a register destination.
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Checks whether the jump succeeds, or whether an exception is triggered
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(but not if the right exception was triggered yet).
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We manually construct the opcode, to allow us to force R9 into the
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destination field, to test exception handling. Usually the assembler
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would prevent this.
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Do not specify R31 as the register to use for the jump, as it's used
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internally. */
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.macro TEST_JUMP opcode_value dest_register_number alignment_offset
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REPORT_IMMEDIATE_TO_CONSOLE \opcode_value
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REPORT_IMMEDIATE_TO_CONSOLE \dest_register_number
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REPORT_IMMEDIATE_TO_CONSOLE \alignment_offset
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LOAD_IMMEDIATE r\dest_register_number, 51f + \alignment_offset
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/* Generate the jump opcode. */
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\@1$: OR1K_DELAYED_NOP \
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(.word ( \opcode_value | (\dest_register_number << 11) ))
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/* If the jump failed, we land here. */
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REPORT_IMMEDIATE_TO_CONSOLE 1
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OR1K_DELAYED_NOP (l.j 52f)
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/* If the jump succeeds, we land here. */
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51: REPORT_IMMEDIATE_TO_CONSOLE 0
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52: REPORT_EXCEPTION \@1$
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PRINT_NEWLINE_TO_CONSOLE
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.endm
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STANDARD_TEST_ENVIRONMENT
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.section .text
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start_tests:
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PUSH LINK_REGISTER_R9
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/* Test l.jalr (jump and link register) */
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TEST_JUMP 0x48000000, 5, 0
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/* TODO: The sim does not support unaligned memory access yet.
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TEST_JUMP 0x48000000, 5, 1
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TEST_JUMP 0x48000000, 5, 2
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TEST_JUMP 0x48000000, 5, 3
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*/
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/* Test with link register as the destination. This is not
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allowed. */
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TEST_JUMP 0x48000000, 9, 0
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/* Test l.jr (jump register) */
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TEST_JUMP 0x44000000, 5, 0
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/* TODO: The sim does not support unaligned memory access yet.
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TEST_JUMP 0x44000000, 5, 1
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TEST_JUMP 0x44000000, 5, 2
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TEST_JUMP 0x44000000, 5, 3
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*/
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/* Test with link register as the destination. */
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TEST_JUMP 0x44000000, 9, 0
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POP LINK_REGISTER_R9
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RETURN_TO_LINK_REGISTER_R9
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