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Issue 545155: Add vstr and vldr floating point load and store to ARM assembler, disassemble... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 10 years, 11 months ago
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1 // Copyright 2009 the V8 project authors. All rights reserved. 1 // Copyright 2010 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
11 // with the distribution. 11 // with the distribution.
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230 // The naming of these accessor corresponds to figure A3-1. 230 // The naming of these accessor corresponds to figure A3-1.
231 // Generally applicable fields 231 // Generally applicable fields
232 inline Condition ConditionField() const { 232 inline Condition ConditionField() const {
233 return static_cast<Condition>(Bits(31, 28)); 233 return static_cast<Condition>(Bits(31, 28));
234 } 234 }
235 inline int TypeField() const { return Bits(27, 25); } 235 inline int TypeField() const { return Bits(27, 25); }
236 236
237 inline int RnField() const { return Bits(19, 16); } 237 inline int RnField() const { return Bits(19, 16); }
238 inline int RdField() const { return Bits(15, 12); } 238 inline int RdField() const { return Bits(15, 12); }
239 239
240 inline int CoprocessorField() const { return Bits(11, 8); }
240 // Support for VFP. 241 // Support for VFP.
241 // Vn(19-16) | Vd(15-12) | Vm(3-0) 242 // Vn(19-16) | Vd(15-12) | Vm(3-0)
242 inline int VnField() const { return Bits(19, 16); } 243 inline int VnField() const { return Bits(19, 16); }
243 inline int VmField() const { return Bits(3, 0); } 244 inline int VmField() const { return Bits(3, 0); }
244 inline int VdField() const { return Bits(15, 12); } 245 inline int VdField() const { return Bits(15, 12); }
245 inline int NField() const { return Bit(7); } 246 inline int NField() const { return Bit(7); }
246 inline int MField() const { return Bit(5); } 247 inline int MField() const { return Bit(5); }
247 inline int DField() const { return Bit(22); } 248 inline int DField() const { return Bit(22); }
248 inline int RtField() const { return Bits(15, 12); } 249 inline int RtField() const { return Bits(15, 12); }
250 inline int PField() const { return Bit(24); }
251 inline int UField() const { return Bit(23); }
249 252
250 // Fields used in Data processing instructions 253 // Fields used in Data processing instructions
251 inline Opcode OpcodeField() const { 254 inline Opcode OpcodeField() const {
252 return static_cast<Opcode>(Bits(24, 21)); 255 return static_cast<Opcode>(Bits(24, 21));
253 } 256 }
254 inline int SField() const { return Bit(20); } 257 inline int SField() const { return Bit(20); }
255 // with register 258 // with register
256 inline int RmField() const { return Bits(3, 0); } 259 inline int RmField() const { return Bits(3, 0); }
257 inline Shift ShiftField() const { return static_cast<Shift>(Bits(6, 5)); } 260 inline Shift ShiftField() const { return static_cast<Shift>(Bits(6, 5)); }
258 inline int RegShiftField() const { return Bit(4); } 261 inline int RegShiftField() const { return Bit(4); }
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289 292
290 // Test for special encodings of type 0 instructions (extra loads and stores, 293 // Test for special encodings of type 0 instructions (extra loads and stores,
291 // as well as multiplications). 294 // as well as multiplications).
292 inline bool IsSpecialType0() const { return (Bit(7) == 1) && (Bit(4) == 1); } 295 inline bool IsSpecialType0() const { return (Bit(7) == 1) && (Bit(4) == 1); }
293 296
294 // Special accessors that test for existence of a value. 297 // Special accessors that test for existence of a value.
295 inline bool HasS() const { return SField() == 1; } 298 inline bool HasS() const { return SField() == 1; }
296 inline bool HasB() const { return BField() == 1; } 299 inline bool HasB() const { return BField() == 1; }
297 inline bool HasW() const { return WField() == 1; } 300 inline bool HasW() const { return WField() == 1; }
298 inline bool HasL() const { return LField() == 1; } 301 inline bool HasL() const { return LField() == 1; }
302 inline bool HasU() const { return UField() == 1; }
299 inline bool HasSign() const { return SignField() == 1; } 303 inline bool HasSign() const { return SignField() == 1; }
300 inline bool HasH() const { return HField() == 1; } 304 inline bool HasH() const { return HField() == 1; }
301 inline bool HasLink() const { return LinkField() == 1; } 305 inline bool HasLink() const { return LinkField() == 1; }
302 306
303 // Instructions are read of out a code stream. The only way to get a 307 // Instructions are read of out a code stream. The only way to get a
304 // reference to an instruction is to convert a pointer. There is no way 308 // reference to an instruction is to convert a pointer. There is no way
305 // to allocate or create instances of class Instr. 309 // to allocate or create instances of class Instr.
306 // Use the At(pc) function to create references to Instr. 310 // Use the At(pc) function to create references to Instr.
307 static Instr* At(byte* pc) { return reinterpret_cast<Instr*>(pc); } 311 static Instr* At(byte* pc) { return reinterpret_cast<Instr*>(pc); }
308 312
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338 static const char* Name(int reg); 342 static const char* Name(int reg);
339 343
340 private: 344 private:
341 static const char* names_[kNumVFPRegisters]; 345 static const char* names_[kNumVFPRegisters];
342 }; 346 };
343 347
344 348
345 } } // namespace assembler::arm 349 } } // namespace assembler::arm
346 350
347 #endif // V8_ARM_CONSTANTS_ARM_H_ 351 #endif // V8_ARM_CONSTANTS_ARM_H_
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