diff options
Diffstat (limited to 'JavaScriptCore/assembler/MacroAssemblerARMv7.h')
| -rw-r--r-- | JavaScriptCore/assembler/MacroAssemblerARMv7.h | 88 |
1 files changed, 86 insertions, 2 deletions
diff --git a/JavaScriptCore/assembler/MacroAssemblerARMv7.h b/JavaScriptCore/assembler/MacroAssemblerARMv7.h index 532a9cf..31a68d9 100644 --- a/JavaScriptCore/assembler/MacroAssemblerARMv7.h +++ b/JavaScriptCore/assembler/MacroAssemblerARMv7.h @@ -1,5 +1,6 @@ /* * Copyright (C) 2009 Apple Inc. All rights reserved. + * Copyright (C) 2010 University of Szeged * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -26,8 +27,6 @@ #ifndef MacroAssemblerARMv7_h #define MacroAssemblerARMv7_h -#include <wtf/Platform.h> - #if ENABLE(ASSEMBLER) #include "ARMv7Assembler.h" @@ -258,6 +257,21 @@ public: { m_assembler.asr(dest, dest, imm.m_value & 0x1f); } + + void urshift32(RegisterID shift_amount, RegisterID dest) + { + // Clamp the shift to the range 0..31 + ARMThumbImmediate armImm = ARMThumbImmediate::makeEncodedImm(0x1f); + ASSERT(armImm.isValid()); + m_assembler.ARM_and(dataTempRegister, shift_amount, armImm); + + m_assembler.lsr(dest, dest, dataTempRegister); + } + + void urshift32(Imm32 imm, RegisterID dest) + { + m_assembler.lsr(dest, dest, imm.m_value & 0x1f); + } void sub32(RegisterID src, RegisterID dest) { @@ -368,6 +382,20 @@ private: } } + void load8(ArmAddress address, RegisterID dest) + { + if (address.type == ArmAddress::HasIndex) + m_assembler.ldrb(dest, address.base, address.u.index, address.u.scale); + else if (address.u.offset >= 0) { + ARMThumbImmediate armImm = ARMThumbImmediate::makeUInt12(address.u.offset); + ASSERT(armImm.isValid()); + m_assembler.ldrb(dest, address.base, armImm); + } else { + ASSERT(address.u.offset >= -255); + m_assembler.ldrb(dest, address.base, address.u.offset, true, false); + } + } + void store32(RegisterID src, ArmAddress address) { if (address.type == ArmAddress::HasIndex) @@ -404,6 +432,11 @@ public: m_assembler.ldr(dest, addressTempRegister, ARMThumbImmediate::makeUInt16(0)); } + void load8(ImplicitAddress address, RegisterID dest) + { + load8(setupArmAddress(address), dest); + } + DataLabel32 load32WithAddressOffsetPatch(Address address, RegisterID dest) { DataLabel32 label = moveWithPatch(Imm32(address.offset), dataTempRegister); @@ -423,6 +456,11 @@ public: { m_assembler.ldrh(dest, makeBaseIndexBase(address), address.index, address.scale); } + + void load16(ImplicitAddress address, RegisterID dest) + { + m_assembler.ldrh(dest, address.base, address.offset); + } DataLabel32 store32WithAddressOffsetPatch(RegisterID src, Address address) { @@ -476,6 +514,11 @@ public: // In short, FIXME:. bool supportsFloatingPointTruncate() const { return false; } + bool supportsFloatingPointSqrt() const + { + return false; + } + void loadDouble(ImplicitAddress address, FPRegisterID dest) { RegisterID base = address.base; @@ -539,6 +582,11 @@ public: mulDouble(fpTempRegister, dest); } + void sqrtDouble(FPRegisterID, FPRegisterID) + { + ASSERT_NOT_REACHED(); + } + void convertInt32ToDouble(RegisterID src, FPRegisterID dest) { m_assembler.vmov(fpTempRegister, src); @@ -793,6 +841,19 @@ public: return branch32(cond, addressTempRegister, Imm32(right.m_value << 16)); } + Jump branch8(Condition cond, RegisterID left, Imm32 right) + { + compare32(left, right); + return Jump(makeBranch(cond)); + } + + Jump branch8(Condition cond, Address left, Imm32 right) + { + // use addressTempRegister incase the branch8 we call uses dataTempRegister. :-/ + load8(left, addressTempRegister); + return branch8(cond, addressTempRegister, right); + } + Jump branchTest32(Condition cond, RegisterID reg, RegisterID mask) { ASSERT((cond == Zero) || (cond == NonZero)); @@ -823,6 +884,21 @@ public: return branchTest32(cond, addressTempRegister, mask); } + Jump branchTest8(Condition cond, RegisterID reg, Imm32 mask = Imm32(-1)) + { + ASSERT((cond == Zero) || (cond == NonZero)); + test32(reg, mask); + return Jump(makeBranch(cond)); + } + + Jump branchTest8(Condition cond, Address address, Imm32 mask = Imm32(-1)) + { + ASSERT((cond == Zero) || (cond == NonZero)); + // use addressTempRegister incase the branchTest8 we call uses dataTempRegister. :-/ + load8(address, addressTempRegister); + return branchTest8(cond, addressTempRegister, mask); + } + Jump jump() { return Jump(makeJump()); @@ -973,6 +1049,14 @@ public: m_assembler.mov(dest, ARMThumbImmediate::makeUInt16(0)); } + void setTest8(Condition cond, Address address, Imm32 mask, RegisterID dest) + { + load8(address, dataTempRegister); + test32(dataTempRegister, mask); + m_assembler.it(armV7Condition(cond), false); + m_assembler.mov(dest, ARMThumbImmediate::makeUInt16(1)); + m_assembler.mov(dest, ARMThumbImmediate::makeUInt16(0)); + } DataLabel32 moveWithPatch(Imm32 imm, RegisterID dst) { |