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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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64 "%s\n" | 64 "%s\n" |
65 "disassembled: \n" | 65 "disassembled: \n" |
66 "%s\n\n", | 66 "%s\n\n", |
67 compare_string, disasm_buffer.start()); | 67 compare_string, disasm_buffer.start()); |
68 return false; | 68 return false; |
69 } | 69 } |
70 return true; | 70 return true; |
71 } | 71 } |
72 | 72 |
73 | 73 |
74 // Setup V8 to a state where we can at least run the assembler and | 74 // Set up V8 to a state where we can at least run the assembler and |
75 // disassembler. Declare the variables and allocate the data structures used | 75 // disassembler. Declare the variables and allocate the data structures used |
76 // in the rest of the macros. | 76 // in the rest of the macros. |
77 #define SETUP() \ | 77 #define SET_UP() \ |
78 InitializeVM(); \ | 78 InitializeVM(); \ |
79 v8::HandleScope scope; \ | 79 v8::HandleScope scope; \ |
80 byte *buffer = reinterpret_cast<byte*>(malloc(4*1024)); \ | 80 byte *buffer = reinterpret_cast<byte*>(malloc(4*1024)); \ |
81 Assembler assm(Isolate::Current(), buffer, 4*1024); \ | 81 Assembler assm(Isolate::Current(), buffer, 4*1024); \ |
82 bool failure = false; | 82 bool failure = false; |
83 | 83 |
84 | 84 |
85 // This macro assembles one instruction using the preallocated assembler and | 85 // This macro assembles one instruction using the preallocated assembler and |
86 // disassembles the generated instruction, comparing the output to the expected | 86 // disassembles the generated instruction, comparing the output to the expected |
87 // value. If the comparison fails an error message is printed, but the test | 87 // value. If the comparison fails an error message is printed, but the test |
88 // continues to run until the end. | 88 // continues to run until the end. |
89 #define COMPARE(asm_, compare_string) \ | 89 #define COMPARE(asm_, compare_string) \ |
90 { \ | 90 { \ |
91 int pc_offset = assm.pc_offset(); \ | 91 int pc_offset = assm.pc_offset(); \ |
92 byte *progcounter = &buffer[pc_offset]; \ | 92 byte *progcounter = &buffer[pc_offset]; \ |
93 assm.asm_; \ | 93 assm.asm_; \ |
94 if (!DisassembleAndCompare(progcounter, compare_string)) failure = true; \ | 94 if (!DisassembleAndCompare(progcounter, compare_string)) failure = true; \ |
95 } | 95 } |
96 | 96 |
97 | 97 |
98 // Verify that all invocations of the COMPARE macro passed successfully. | 98 // Verify that all invocations of the COMPARE macro passed successfully. |
99 // Exit with a failure if at least one of the tests failed. | 99 // Exit with a failure if at least one of the tests failed. |
100 #define VERIFY_RUN() \ | 100 #define VERIFY_RUN() \ |
101 if (failure) { \ | 101 if (failure) { \ |
102 V8_Fatal(__FILE__, __LINE__, "MIPS Disassembler tests failed.\n"); \ | 102 V8_Fatal(__FILE__, __LINE__, "MIPS Disassembler tests failed.\n"); \ |
103 } | 103 } |
104 | 104 |
105 | 105 |
106 TEST(Type0) { | 106 TEST(Type0) { |
107 SETUP(); | 107 SET_UP(); |
108 | 108 |
109 COMPARE(addu(a0, a1, a2), | 109 COMPARE(addu(a0, a1, a2), |
110 "00a62021 addu a0, a1, a2"); | 110 "00a62021 addu a0, a1, a2"); |
111 COMPARE(addu(t2, t3, t4), | 111 COMPARE(addu(t2, t3, t4), |
112 "016c5021 addu t2, t3, t4"); | 112 "016c5021 addu t2, t3, t4"); |
113 COMPARE(addu(v0, v1, s0), | 113 COMPARE(addu(v0, v1, s0), |
114 "00701021 addu v0, v1, s0"); | 114 "00701021 addu v0, v1, s0"); |
115 | 115 |
116 COMPARE(subu(a0, a1, a2), | 116 COMPARE(subu(a0, a1, a2), |
117 "00a62023 subu a0, a1, a2"); | 117 "00a62023 subu a0, a1, a2"); |
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428 COMPARE(ext_(a0, a1, 31, 1), | 428 COMPARE(ext_(a0, a1, 31, 1), |
429 "7ca407c0 ext a0, a1, 31, 1"); | 429 "7ca407c0 ext a0, a1, 31, 1"); |
430 COMPARE(ext_(s6, s7, 30, 2), | 430 COMPARE(ext_(s6, s7, 30, 2), |
431 "7ef60f80 ext s6, s7, 30, 2"); | 431 "7ef60f80 ext s6, s7, 30, 2"); |
432 COMPARE(ext_(v0, v1, 0, 32), | 432 COMPARE(ext_(v0, v1, 0, 32), |
433 "7c62f800 ext v0, v1, 0, 32"); | 433 "7c62f800 ext v0, v1, 0, 32"); |
434 } | 434 } |
435 | 435 |
436 VERIFY_RUN(); | 436 VERIFY_RUN(); |
437 } | 437 } |
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