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702d582e PG |
1 | /* Tests instructions l.mfspr and l.mtspr. |
2 | ||
e2882c85 | 3 | Copyright (C) 2017-2018 Free Software Foundation, Inc. |
702d582e PG |
4 | |
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. | |
9 | ||
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. | |
14 | ||
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/>. */ | |
17 | ||
18 | # mach: or1k | |
19 | # output: report(0x00000000);\n | |
20 | # output: report(0x00002801);\n | |
21 | # output: report(0xdeadbeef);\n | |
22 | # output: \n | |
23 | # output: report(0x00002801);\n | |
24 | # output: report(0x00000000);\n | |
25 | # output: report(0xdeadbeef);\n | |
26 | # output: \n | |
27 | # output: report(0x00002801);\n | |
28 | # output: report(0x00002801);\n | |
29 | # output: report(0xdeadbeef);\n | |
30 | # output: \n | |
31 | # output: report(0x00000801);\n | |
32 | # output: report(0x00002000);\n | |
33 | # output: report(0xdeadbeef);\n | |
34 | # output: \n | |
35 | # output: report(0x00002000);\n | |
36 | # output: report(0x00000801);\n | |
37 | # output: report(0xdeadbeef);\n | |
38 | # output: \n | |
39 | # output: report(0x00002801);\n | |
40 | # output: report(0x00000001);\n | |
41 | # output: report(0xdeadbeef);\n | |
42 | # output: \n | |
43 | # output: report(0x00000800);\n | |
44 | # output: report(0x00002801);\n | |
45 | # output: report(0xdeadbeef);\n | |
46 | # output: \n | |
47 | # output: report(0x00000000);\n | |
48 | # output: report(0x00002801);\n | |
49 | # output: report(0xdeadbeef);\n | |
50 | # output: \n | |
51 | # output: report(0x00002801);\n | |
52 | # output: report(0x00000000);\n | |
53 | # output: report(0xdeadbeef);\n | |
54 | # output: \n | |
55 | # output: report(0x00002801);\n | |
56 | # output: report(0x00002801);\n | |
57 | # output: report(0xdeadbeef);\n | |
58 | # output: \n | |
59 | # output: report(0x00000801);\n | |
60 | # output: report(0x00002000);\n | |
61 | # output: report(0xdeadbeef);\n | |
62 | # output: \n | |
63 | # output: report(0x00002000);\n | |
64 | # output: report(0x00000801);\n | |
65 | # output: report(0xdeadbeef);\n | |
66 | # output: \n | |
67 | # output: report(0x00002801);\n | |
68 | # output: report(0x00000001);\n | |
69 | # output: report(0xdeadbeef);\n | |
70 | # output: \n | |
71 | # output: report(0x00000800);\n | |
72 | # output: report(0x00002801);\n | |
73 | # output: report(0xdeadbeef);\n | |
74 | # output: \n | |
75 | # output: exit(0)\n | |
76 | ||
77 | #include "or1k-asm-test-env.h" | |
78 | ||
79 | #define MACLO_VAL 0xdeadbeef | |
80 | ||
81 | /* A macro to carry out a test of l.mfspr. | |
82 | ||
83 | MACLO (0x2801) is used as the SPR, since it can be read and | |
84 | cleared using l.macrc and can be set using l.maci. spr_number | |
85 | and immediate_val_to_or should be chosen to address this | |
86 | register. | |
87 | ||
88 | The value placed in the register is entirely arbitrary - we use | |
89 | 0xdeadbeef. */ | |
90 | ||
91 | .macro TEST_MFSPR spr_number, immediate_val_to_or | |
92 | REPORT_IMMEDIATE_TO_CONSOLE \spr_number | |
93 | REPORT_IMMEDIATE_TO_CONSOLE \immediate_val_to_or | |
94 | /* Write MACLO_VAL to MACLO. */ | |
95 | l.macrc r2 | |
96 | LOAD_IMMEDIATE r2, MACLO_VAL | |
97 | l.maci r2, 1 | |
98 | LOAD_IMMEDIATE r5, \spr_number | |
99 | l.mfspr r4, r5, \immediate_val_to_or | |
100 | REPORT_REG_TO_CONSOLE r4 | |
101 | PRINT_NEWLINE_TO_CONSOLE | |
102 | .endm | |
103 | ||
104 | /* A macro to carry out a test of l.mtspr | |
105 | ||
106 | MACLO (0x2801) is used as the SPR, since it can be read and | |
107 | cleared using l.macrc and can be set using l.maci. The | |
108 | arguments spr_number and immediate_val_to_or should be chosen | |
109 | to address this register. | |
110 | ||
111 | The value placed in the register is entirely arbitrary - we use | |
112 | 0xdeadbeef. */ | |
113 | ||
114 | .macro TEST_MTSPR spr_number, immediate_val_to_or | |
115 | REPORT_IMMEDIATE_TO_CONSOLE \spr_number | |
116 | REPORT_IMMEDIATE_TO_CONSOLE \immediate_val_to_or | |
117 | /* Clear MACLO */ | |
118 | l.macrc r2 | |
119 | LOAD_IMMEDIATE r4, MACLO_VAL | |
120 | LOAD_IMMEDIATE r5, \spr_number | |
121 | l.mtspr r5, r4, \immediate_val_to_or | |
122 | /* Retrieve MACLO. */ | |
123 | l.macrc r4 | |
124 | REPORT_REG_TO_CONSOLE r4 | |
125 | PRINT_NEWLINE_TO_CONSOLE | |
126 | .endm | |
127 | ||
128 | STANDARD_TEST_ENVIRONMENT | |
129 | ||
130 | .section .text | |
131 | start_tests: | |
132 | PUSH LINK_REGISTER_R9 | |
133 | ||
134 | /* Test the l.mfspr instruction with a range of operands. */ | |
135 | ||
136 | /* Move a test value using zero in the register. */ | |
137 | TEST_MFSPR SPR_VR, SPR_MACLO /* 0x0000, 0x2801 */ | |
138 | ||
139 | /* Move a test value using zero as the constant. */ | |
140 | TEST_MFSPR SPR_MACLO, SPR_VR /* 0x2801, 0x0000 */ | |
141 | ||
142 | /* Move a test value using non-zero in both register and constant. */ | |
143 | ||
144 | /* Some of these values will not give the correct result if OR | |
145 | rather than ADD is used to determine the SPR address. */ | |
146 | TEST_MFSPR SPR_MACLO, SPR_MACLO /* 0x2801, 0x2801 */ | |
147 | TEST_MFSPR SPR_DMMUPR, SPR_ICCR /* 0x0801, 0x2000 */ | |
148 | TEST_MFSPR SPR_ICCR, SPR_DMMUPR /* 0x2000, 0x0801 */ | |
149 | TEST_MFSPR SPR_MACLO, SPR_UPR /* 0x2801, 0x0001 */ | |
150 | TEST_MFSPR SPR_DMMUCR, SPR_MACLO /* 0x0800, 0x2801 */ | |
151 | ||
152 | /* Test the l.mtspr instruction with a range of operands. */ | |
153 | ||
154 | /* Move a test value using zero in the register. */ | |
155 | TEST_MTSPR SPR_VR, SPR_MACLO /* 0x0000, 0x2801 */ | |
156 | ||
157 | /* Move a test value using zero as the constant. */ | |
158 | TEST_MTSPR SPR_MACLO, SPR_VR /* 0x2801, 0x0000 */ | |
159 | ||
160 | /* Move a test value using non-zero in both register and constant. */ | |
161 | ||
162 | /* Some of these values will not give the correct result if or | |
163 | rather than add is used to determine the SPR address. */ | |
164 | TEST_MTSPR SPR_MACLO, SPR_MACLO /* 0x2801, 0x2801 */ | |
165 | TEST_MTSPR SPR_DMMUPR, SPR_ICCR /* 0x0801, 0x2000 */ | |
166 | TEST_MTSPR SPR_ICCR, SPR_DMMUPR /* 0x2000, 0x0801 */ | |
167 | TEST_MTSPR SPR_MACLO, SPR_UPR /* 0x2801, 0x0001 */ | |
168 | TEST_MTSPR SPR_DMMUCR, SPR_MACLO /* 0x0800, 0x2801 */ | |
169 | ||
170 | POP LINK_REGISTER_R9 | |
171 | RETURN_TO_LINK_REGISTER_R9 |