1 /* Tests the jump instructions.
3 Copyright (C) 2017 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 # output: report(0x48000000);\n
20 # output: report(0x00000005);\n
21 # output: report(0x00000000);\n
22 # output: report(0x00000000);\n
23 # output: report(0x00000000);\n
25 # output: report(0x48000000);\n
26 # output: report(0x00000009);\n
27 # output: report(0x00000000);\n
28 # output: report(0x00000001);\n
29 # output: report(0x00000000);\n
31 # output: report(0x44000000);\n
32 # output: report(0x00000005);\n
33 # output: report(0x00000000);\n
34 # output: report(0x00000000);\n
35 # output: report(0x00000000);\n
37 # output: report(0x44000000);\n
38 # output: report(0x00000009);\n
39 # output: report(0x00000000);\n
40 # output: report(0x00000000);\n
41 # output: report(0x00000000);\n
45 #include "or1k-asm-test-helpers.h"
47 /* Tests a jump instruction using a register destination.
48 Checks whether the jump succeeds, or whether an exception is triggered
49 (but not if the right exception was triggered yet).
51 We manually construct the opcode, to allow us to force R9 into the
52 destination field, to test exception handling. Usually the assembler
55 Do not specify R31 as the register to use for the jump, as it's used
58 .macro TEST_JUMP opcode_value dest_register_number alignment_offset
59 REPORT_IMMEDIATE_TO_CONSOLE \opcode_value
60 REPORT_IMMEDIATE_TO_CONSOLE \dest_register_number
61 REPORT_IMMEDIATE_TO_CONSOLE \alignment_offset
62 LOAD_IMMEDIATE r\dest_register_number, 51f + \alignment_offset
63 /* Generate the jump opcode. */
64 \@1$: OR1K_DELAYED_NOP \
65 (.word ( \opcode_value | (\dest_register_number << 11) ))
66 /* If the jump failed, we land here. */
67 REPORT_IMMEDIATE_TO_CONSOLE 1
68 OR1K_DELAYED_NOP (l.j 52f)
69 /* If the jump succeeds, we land here. */
70 51: REPORT_IMMEDIATE_TO_CONSOLE 0
71 52: REPORT_EXCEPTION \@1$
72 PRINT_NEWLINE_TO_CONSOLE
75 STANDARD_TEST_ENVIRONMENT
81 /* Test l.jalr (jump and link register) */
82 TEST_JUMP 0x48000000, 5, 0
83 /* TODO: The sim does not support unaligned memory access yet.
84 TEST_JUMP 0x48000000, 5, 1
85 TEST_JUMP 0x48000000, 5, 2
86 TEST_JUMP 0x48000000, 5, 3
89 /* Test with link register as the destination. This is not
91 TEST_JUMP 0x48000000, 9, 0
93 /* Test l.jr (jump register) */
94 TEST_JUMP 0x44000000, 5, 0
95 /* TODO: The sim does not support unaligned memory access yet.
96 TEST_JUMP 0x44000000, 5, 1
97 TEST_JUMP 0x44000000, 5, 2
98 TEST_JUMP 0x44000000, 5, 3
101 /* Test with link register as the destination. */
102 TEST_JUMP 0x44000000, 9, 0
105 RETURN_TO_LINK_REGISTER_R9