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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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253 rmode_ = RelocInfo::NONE32; | 253 rmode_ = RelocInfo::NONE32; |
254 } | 254 } |
255 } | 255 } |
256 | 256 |
257 | 257 |
258 MemOperand::MemOperand(Register rm, int32_t offset) : Operand(rm) { | 258 MemOperand::MemOperand(Register rm, int32_t offset) : Operand(rm) { |
259 offset_ = offset; | 259 offset_ = offset; |
260 } | 260 } |
261 | 261 |
262 | 262 |
| 263 MemOperand::MemOperand(Register rm, int32_t unit, int32_t multiplier, |
| 264 OffsetAddend offset_addend) : Operand(rm) { |
| 265 offset_ = unit * multiplier + offset_addend; |
| 266 } |
| 267 |
| 268 |
263 // ----------------------------------------------------------------------------- | 269 // ----------------------------------------------------------------------------- |
264 // Specific instructions, constants, and masks. | 270 // Specific instructions, constants, and masks. |
265 | 271 |
266 static const int kNegOffset = 0x00008000; | 272 static const int kNegOffset = 0x00008000; |
267 // addiu(sp, sp, 4) aka Pop() operation or part of Pop(r) | 273 // addiu(sp, sp, 4) aka Pop() operation or part of Pop(r) |
268 // operations as post-increment of sp. | 274 // operations as post-increment of sp. |
269 const Instr kPopInstruction = ADDIU | (kRegister_sp_Code << kRsShift) | 275 const Instr kPopInstruction = ADDIU | (kRegister_sp_Code << kRsShift) |
270 | (kRegister_sp_Code << kRtShift) | (kPointerSize & kImm16Mask); | 276 | (kRegister_sp_Code << kRtShift) | (kPointerSize & kImm16Mask); |
271 // addiu(sp, sp, -4) part of Push(r) operation as pre-decrement of sp. | 277 // addiu(sp, sp, -4) part of Push(r) operation as pre-decrement of sp. |
272 const Instr kPushInstruction = ADDIU | (kRegister_sp_Code << kRsShift) | 278 const Instr kPushInstruction = ADDIU | (kRegister_sp_Code << kRsShift) |
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1616 | 1622 |
1617 | 1623 |
1618 void Assembler::ext_(Register rt, Register rs, uint16_t pos, uint16_t size) { | 1624 void Assembler::ext_(Register rt, Register rs, uint16_t pos, uint16_t size) { |
1619 // Should be called via MacroAssembler::Ext. | 1625 // Should be called via MacroAssembler::Ext. |
1620 // Ext instr has 'rt' field as dest, and two uint5: msb, lsb. | 1626 // Ext instr has 'rt' field as dest, and two uint5: msb, lsb. |
1621 ASSERT(kArchVariant == kMips32r2); | 1627 ASSERT(kArchVariant == kMips32r2); |
1622 GenInstrRegister(SPECIAL3, rs, rt, size - 1, pos, EXT); | 1628 GenInstrRegister(SPECIAL3, rs, rt, size - 1, pos, EXT); |
1623 } | 1629 } |
1624 | 1630 |
1625 | 1631 |
| 1632 void Assembler::pref(int32_t hint, const MemOperand& rs) { |
| 1633 ASSERT(kArchVariant != kLoongson); |
| 1634 ASSERT(is_uint5(hint) && is_uint16(rs.offset_)); |
| 1635 Instr instr = PREF | (rs.rm().code() << kRsShift) | (hint << kRtShift) |
| 1636 | (rs.offset_); |
| 1637 emit(instr); |
| 1638 } |
| 1639 |
| 1640 |
1626 //--------Coprocessor-instructions---------------- | 1641 //--------Coprocessor-instructions---------------- |
1627 | 1642 |
1628 // Load, store, move. | 1643 // Load, store, move. |
1629 void Assembler::lwc1(FPURegister fd, const MemOperand& src) { | 1644 void Assembler::lwc1(FPURegister fd, const MemOperand& src) { |
1630 GenInstrImmediate(LWC1, src.rm(), fd, src.offset_); | 1645 GenInstrImmediate(LWC1, src.rm(), fd, src.offset_); |
1631 } | 1646 } |
1632 | 1647 |
1633 | 1648 |
1634 void Assembler::ldc1(FPURegister fd, const MemOperand& src) { | 1649 void Assembler::ldc1(FPURegister fd, const MemOperand& src) { |
1635 // Workaround for non-8-byte alignment of HeapNumber, convert 64-bit | 1650 // Workaround for non-8-byte alignment of HeapNumber, convert 64-bit |
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2302 } | 2317 } |
2303 | 2318 |
2304 if (patched) { | 2319 if (patched) { |
2305 CPU::FlushICache(pc+2, sizeof(Address)); | 2320 CPU::FlushICache(pc+2, sizeof(Address)); |
2306 } | 2321 } |
2307 } | 2322 } |
2308 | 2323 |
2309 } } // namespace v8::internal | 2324 } } // namespace v8::internal |
2310 | 2325 |
2311 #endif // V8_TARGET_ARCH_MIPS | 2326 #endif // V8_TARGET_ARCH_MIPS |
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