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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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