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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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298 Major MajorKey() { return ConvertToDouble; } | 298 Major MajorKey() { return ConvertToDouble; } |
299 int MinorKey() { | 299 int MinorKey() { |
300 // Encode the parameters in a unique 16 bit value. | 300 // Encode the parameters in a unique 16 bit value. |
301 return result1_.code() + | 301 return result1_.code() + |
302 (result2_.code() << 4) + | 302 (result2_.code() << 4) + |
303 (source_.code() << 8) + | 303 (source_.code() << 8) + |
304 (zeros_.code() << 12); | 304 (zeros_.code() << 12); |
305 } | 305 } |
306 | 306 |
307 void Generate(MacroAssembler* masm); | 307 void Generate(MacroAssembler* masm); |
308 | |
309 const char* GetName() { return "ConvertToDoubleStub"; } | |
310 | |
311 #ifdef DEBUG | |
312 void Print() { PrintF("ConvertToDoubleStub\n"); } | |
313 #endif | |
314 }; | 308 }; |
315 | 309 |
316 | 310 |
317 void ConvertToDoubleStub::Generate(MacroAssembler* masm) { | 311 void ConvertToDoubleStub::Generate(MacroAssembler* masm) { |
318 #ifndef BIG_ENDIAN_FLOATING_POINT | 312 #ifndef BIG_ENDIAN_FLOATING_POINT |
319 Register exponent = result1_; | 313 Register exponent = result1_; |
320 Register mantissa = result2_; | 314 Register mantissa = result2_; |
321 #else | 315 #else |
322 Register exponent = result2_; | 316 Register exponent = result2_; |
323 Register mantissa = result1_; | 317 Register mantissa = result1_; |
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6879 __ mov(result, zero_reg); | 6873 __ mov(result, zero_reg); |
6880 __ Ret(); | 6874 __ Ret(); |
6881 } | 6875 } |
6882 | 6876 |
6883 | 6877 |
6884 #undef __ | 6878 #undef __ |
6885 | 6879 |
6886 } } // namespace v8::internal | 6880 } } // namespace v8::internal |
6887 | 6881 |
6888 #endif // V8_TARGET_ARCH_MIPS | 6882 #endif // V8_TARGET_ARCH_MIPS |
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