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Diffstat (limited to 'source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp')
-rw-r--r--source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp406
1 files changed, 205 insertions, 201 deletions
diff --git a/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp b/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
index 95ae549e0e4b3..d646d4d4754a1 100644
--- a/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
+++ b/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
@@ -290,9 +290,8 @@ EmulateInstructionARM::GetRegisterInfo (lldb::RegisterKind reg_kind, uint32_t re
uint32_t
EmulateInstructionARM::GetFramePointerRegisterNumber () const
{
- if (m_arch.GetTriple().getEnvironment() == llvm::Triple::Android)
+ if (m_arch.GetTriple().isAndroid())
return LLDB_INVALID_REGNUM; // Don't use frame pointer on android
-
bool is_apple = false;
if (m_arch.GetTriple().getVendor() == llvm::Triple::Apple)
is_apple = true;
@@ -301,6 +300,8 @@ EmulateInstructionARM::GetFramePointerRegisterNumber () const
case llvm::Triple::Darwin:
case llvm::Triple::MacOSX:
case llvm::Triple::IOS:
+ case llvm::Triple::TvOS:
+ case llvm::Triple::WatchOS:
is_apple = true;
break;
default:
@@ -387,9 +388,8 @@ EmulateInstructionARM::EmulatePUSH (const uint32_t opcode, const ARMEncoding enc
}
#endif
- bool conditional = false;
bool success = false;
- if (ConditionPassed(opcode, &conditional))
+ if (ConditionPassed(opcode))
{
const uint32_t addr_byte_size = GetAddressByteSize();
const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -442,10 +442,7 @@ EmulateInstructionARM::EmulatePUSH (const uint32_t opcode, const ARMEncoding enc
uint32_t i;
EmulateInstruction::Context context;
- if (conditional)
- context.type = EmulateInstruction::eContextRegisterStore;
- else
- context.type = EmulateInstruction::eContextPushRegisterOnStack;
+ context.type = EmulateInstruction::eContextPushRegisterOnStack;
RegisterInfo reg_info;
RegisterInfo sp_reg;
GetRegisterInfo (eRegisterKindDWARF, dwarf_sp, sp_reg);
@@ -511,8 +508,7 @@ EmulateInstructionARM::EmulatePOP (const uint32_t opcode, const ARMEncoding enco
bool success = false;
- bool conditional = false;
- if (ConditionPassed(opcode, &conditional))
+ if (ConditionPassed(opcode))
{
const uint32_t addr_byte_size = GetAddressByteSize();
const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -574,10 +570,7 @@ EmulateInstructionARM::EmulatePOP (const uint32_t opcode, const ARMEncoding enco
uint32_t i, data;
EmulateInstruction::Context context;
- if (conditional)
- context.type = EmulateInstruction::eContextRegisterLoad;
- else
- context.type = EmulateInstruction::eContextPopRegisterOffStack;
+ context.type = EmulateInstruction::eContextPopRegisterOffStack;
RegisterInfo sp_reg;
GetRegisterInfo (eRegisterKindDWARF, dwarf_sp, sp_reg);
@@ -586,7 +579,7 @@ EmulateInstructionARM::EmulatePOP (const uint32_t opcode, const ARMEncoding enco
{
if (BitIsSet (registers, i))
{
- context.SetRegisterPlusOffset (sp_reg, addr - sp);
+ context.SetAddress(addr);
data = MemARead(context, addr, 4, 0, &success);
if (!success)
return false;
@@ -900,12 +893,12 @@ EmulateInstructionARM::EmulateMOVRdImm (const uint32_t opcode, const ARMEncoding
break;
case eEncodingA1:
- // d = UInt(Rd); setflags = (S == Ô1Õ); (imm32, carry) = ARMExpandImm_C(imm12, APSR.C);
+ // d = UInt(Rd); setflags = (S == '1'); (imm32, carry) = ARMExpandImm_C(imm12, APSR.C);
Rd = Bits32 (opcode, 15, 12);
setflags = BitIsSet (opcode, 20);
imm32 = ARMExpandImm_C (opcode, APSR_C, carry);
- // if Rd == Ô1111Õ && S == Ô1Õ then SEE SUBS PC, LR and related instructions;
+ // if Rd == '1111' && S == '1' then SEE SUBS PC, LR and related instructions;
if ((Rd == 15) && setflags)
return EmulateSUBSPcLrEtc (opcode, encoding);
@@ -1971,9 +1964,8 @@ EmulateInstructionARM::EmulateSTRRtSP (const uint32_t opcode, const ARMEncoding
}
#endif
- bool conditional = false;
bool success = false;
- if (ConditionPassed(opcode, &conditional))
+ if (ConditionPassed(opcode))
{
const uint32_t addr_byte_size = GetAddressByteSize();
const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -2018,10 +2010,7 @@ EmulateInstructionARM::EmulateSTRRtSP (const uint32_t opcode, const ARMEncoding
addr = sp;
EmulateInstruction::Context context;
- if (conditional)
- context.type = EmulateInstruction::eContextRegisterStore;
- else
- context.type = EmulateInstruction::eContextPushRegisterOnStack;
+ context.type = EmulateInstruction::eContextPushRegisterOnStack;
RegisterInfo sp_reg;
RegisterInfo dwarf_reg;
@@ -2082,8 +2071,7 @@ EmulateInstructionARM::EmulateVPUSH (const uint32_t opcode, const ARMEncoding en
#endif
bool success = false;
- bool conditional = false;
- if (ConditionPassed(opcode, &conditional))
+ if (ConditionPassed(opcode))
{
const uint32_t addr_byte_size = GetAddressByteSize();
const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -2125,10 +2113,8 @@ EmulateInstructionARM::EmulateVPUSH (const uint32_t opcode, const ARMEncoding en
uint32_t i;
EmulateInstruction::Context context;
- if (conditional)
- context.type = EmulateInstruction::eContextRegisterStore;
- else
- context.type = EmulateInstruction::eContextPushRegisterOnStack;
+ context.type = EmulateInstruction::eContextPushRegisterOnStack;
+
RegisterInfo dwarf_reg;
RegisterInfo sp_reg;
GetRegisterInfo (eRegisterKindDWARF, dwarf_sp, sp_reg);
@@ -2178,8 +2164,7 @@ EmulateInstructionARM::EmulateVPOP (const uint32_t opcode, const ARMEncoding enc
#endif
bool success = false;
- bool conditional = false;
- if (ConditionPassed(opcode, &conditional))
+ if (ConditionPassed(opcode))
{
const uint32_t addr_byte_size = GetAddressByteSize();
const addr_t sp = ReadCoreReg (SP_REG, &success);
@@ -2222,17 +2207,15 @@ EmulateInstructionARM::EmulateVPOP (const uint32_t opcode, const ARMEncoding enc
uint64_t data; // uint64_t to accommodate 64-bit registers.
EmulateInstruction::Context context;
- if (conditional)
- context.type = EmulateInstruction::eContextRegisterLoad;
- else
- context.type = EmulateInstruction::eContextPopRegisterOffStack;
+ context.type = EmulateInstruction::eContextPopRegisterOffStack;
+
RegisterInfo dwarf_reg;
RegisterInfo sp_reg;
GetRegisterInfo (eRegisterKindDWARF, dwarf_sp, sp_reg);
for (i=0; i<regs; ++i)
{
GetRegisterInfo (eRegisterKindDWARF, start_reg + d + i, dwarf_reg);
- context.SetRegisterPlusOffset (sp_reg, addr - sp);
+ context.SetAddress(addr);
data = MemARead(context, addr, reg_byte_size, 0, &success);
if (!success)
return false;
@@ -3462,8 +3445,7 @@ EmulateInstructionARM::EmulateLDM (const uint32_t opcode, const ARMEncoding enco
#endif
bool success = false;
- bool conditional = false;
- if (ConditionPassed(opcode, &conditional))
+ if (ConditionPassed(opcode))
{
uint32_t n;
uint32_t registers = 0;
@@ -3536,10 +3518,8 @@ EmulateInstructionARM::EmulateLDM (const uint32_t opcode, const ARMEncoding enco
context.SetRegisterPlusOffset (dwarf_reg, offset);
if (wback && (n == 13)) // Pop Instruction
{
- if (conditional)
- context.type = EmulateInstruction::eContextRegisterLoad;
- else
- context.type = EmulateInstruction::eContextPopRegisterOffStack;
+ context.type = EmulateInstruction::eContextPopRegisterOffStack;
+ context.SetAddress(base_address + offset);
}
// R[i] = MemA [address, 4]; address = address + 4;
@@ -4459,7 +4439,7 @@ EmulateInstructionARM::EmulateSTMDB (const uint32_t opcode, const ARMEncoding en
break;
case eEncodingA1:
- // if W == '1' && Rn == '1101Õ && BitCount(register_list) >= 2 then SEE PUSH;
+ // if W == '1' && Rn == '1101' && BitCount(register_list) >= 2 then SEE PUSH;
if (BitIsSet (opcode, 21) && (Bits32 (opcode, 19, 16) == 13) && BitCount (Bits32 (opcode, 15, 0)) >= 2)
{
// See Push
@@ -4801,7 +4781,11 @@ EmulateInstructionARM::EmulateSTRThumb (const uint32_t opcode, const ARMEncoding
address = base_address;
EmulateInstruction::Context context;
- context.type = eContextRegisterStore;
+ if (n == 13)
+ context.type = eContextPushRegisterOnStack;
+ else
+ context.type = eContextRegisterStore;
+
RegisterInfo base_reg;
GetRegisterInfo (eRegisterKindDWARF, dwarf_r0 + n, base_reg);
@@ -4829,8 +4813,12 @@ EmulateInstructionARM::EmulateSTRThumb (const uint32_t opcode, const ARMEncoding
// if wback then R[n] = offset_addr;
if (wback)
{
- context.type = eContextRegisterLoad;
+ if (n == 13)
+ context.type = eContextAdjustStackPointer;
+ else
+ context.type = eContextAdjustBaseRegister;
context.SetAddress (offset_addr);
+
if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_r0 + n, offset_addr))
return false;
}
@@ -9579,7 +9567,7 @@ EmulateInstructionARM::EmulateSUBSPReg (const uint32_t opcode, const ARMEncoding
if ConditionPassed() then
EncodingSpecificOperations();
shifted = Shift(R[m], shift_t, shift_n, APSR.C);
- (result, carry, overflow) = AddWithCarry(SP, NOT(shifted), Ô1Õ);
+ (result, carry, overflow) = AddWithCarry(SP, NOT(shifted), '1');
if d == 15 then // Can only occur for ARM encoding
ALUWritePC(result); // setflags is always FALSE here
else
@@ -9604,7 +9592,7 @@ EmulateInstructionARM::EmulateSUBSPReg (const uint32_t opcode, const ARMEncoding
switch (encoding)
{
case eEncodingT1:
- // d = UInt(Rd); m = UInt(Rm); setflags = (S == Ô1Õ);
+ // d = UInt(Rd); m = UInt(Rm); setflags = (S == '1');
d = Bits32 (opcode, 11, 8);
m = Bits32 (opcode, 3, 0);
setflags = BitIsSet (opcode, 20);
@@ -9622,12 +9610,12 @@ EmulateInstructionARM::EmulateSUBSPReg (const uint32_t opcode, const ARMEncoding
break;
case eEncodingA1:
- // d = UInt(Rd); m = UInt(Rm); setflags = (S == Ô1Õ);
+ // d = UInt(Rd); m = UInt(Rm); setflags = (S == '1');
d = Bits32 (opcode, 15, 12);
m = Bits32 (opcode, 3, 0);
setflags = BitIsSet (opcode, 20);
- // if Rd == Ô1111Õ && S == Ô1Õ then SEE SUBS PC, LR and related instructions;
+ // if Rd == '1111' && S == '1' then SEE SUBS PC, LR and related instructions;
if (d == 15 && setflags)
EmulateSUBSPcLrEtc (opcode, encoding);
@@ -9648,7 +9636,7 @@ EmulateInstructionARM::EmulateSUBSPReg (const uint32_t opcode, const ARMEncoding
if (!success)
return false;
- // (result, carry, overflow) = AddWithCarry(SP, NOT(shifted), Ô1Õ);
+ // (result, carry, overflow) = AddWithCarry(SP, NOT(shifted), '1');
uint32_t sp_val = ReadCoreReg (SP_REG, &success);
if (!success)
return false;
@@ -9679,7 +9667,7 @@ EmulateInstructionARM::EmulateADDRegShift (const uint32_t opcode, const ARMEncod
EncodingSpecificOperations();
shift_n = UInt(R[s]<7:0>);
shifted = Shift(R[m], shift_t, shift_n, APSR.C);
- (result, carry, overflow) = AddWithCarry(R[n], shifted, Ô0Õ);
+ (result, carry, overflow) = AddWithCarry(R[n], shifted, '0');
R[d] = result;
if setflags then
APSR.N = result<31>;
@@ -9708,7 +9696,7 @@ EmulateInstructionARM::EmulateADDRegShift (const uint32_t opcode, const ARMEncod
m = Bits32 (opcode, 3, 0);
s = Bits32 (opcode, 11, 8);
- // setflags = (S == Ô1Õ); shift_t = DecodeRegShift(type);
+ // setflags = (S == '1'); shift_t = DecodeRegShift(type);
setflags = BitIsSet (opcode, 20);
shift_t = DecodeRegShift (Bits32 (opcode, 6, 5));
@@ -9737,7 +9725,7 @@ EmulateInstructionARM::EmulateADDRegShift (const uint32_t opcode, const ARMEncod
if (!success)
return false;
- // (result, carry, overflow) = AddWithCarry(R[n], shifted, Ô0Õ);
+ // (result, carry, overflow) = AddWithCarry(R[n], shifted, '0');
uint32_t Rn = ReadCoreReg (n, &success);
if (!success)
return false;
@@ -9776,7 +9764,7 @@ EmulateInstructionARM::EmulateSUBReg (const uint32_t opcode, const ARMEncoding e
if ConditionPassed() then
EncodingSpecificOperations();
shifted = Shift(R[m], shift_t, shift_n, APSR.C);
- (result, carry, overflow) = AddWithCarry(R[n], NOT(shifted), Ô1Õ);
+ (result, carry, overflow) = AddWithCarry(R[n], NOT(shifted), '1');
if d == 15 then // Can only occur for ARM encoding
ALUWritePC(result); // setflags is always FALSE here
else
@@ -9839,14 +9827,14 @@ EmulateInstructionARM::EmulateSUBReg (const uint32_t opcode, const ARMEncoding e
break;
case eEncodingA1:
- // if Rn == Ô1101Õ then SEE SUB (SP minus register);
- // d = UInt(Rd); n = UInt(Rn); m = UInt(Rm); setflags = (S == Ô1Õ);
+ // if Rn == '1101' then SEE SUB (SP minus register);
+ // d = UInt(Rd); n = UInt(Rn); m = UInt(Rm); setflags = (S == '1');
d = Bits32 (opcode, 15, 12);
n = Bits32 (opcode, 19, 16);
m = Bits32 (opcode, 3, 0);
setflags = BitIsSet (opcode, 20);
- // if Rd == Ô1111Õ && S == Ô1Õ then SEE SUBS PC, LR and related instructions;
+ // if Rd == '1111' && S == '1' then SEE SUBS PC, LR and related instructions;
if ((d == 15) && setflags)
EmulateSUBSPcLrEtc (opcode, encoding);
@@ -9868,7 +9856,7 @@ EmulateInstructionARM::EmulateSUBReg (const uint32_t opcode, const ARMEncoding e
if (!success)
return false;
- // (result, carry, overflow) = AddWithCarry(R[n], NOT(shifted), Ô1Õ);
+ // (result, carry, overflow) = AddWithCarry(R[n], NOT(shifted), '1');
uint32_t Rn = ReadCoreReg (n, &success);
if (!success)
return false;
@@ -9929,7 +9917,7 @@ EmulateInstructionARM::EmulateSTREX (const uint32_t opcode, const ARMEncoding en
switch (encoding)
{
case eEncodingT1:
- // d = UInt(Rd); t = UInt(Rt); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+ // d = UInt(Rd); t = UInt(Rt); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
d = Bits32 (opcode, 11, 8);
t = Bits32 (opcode, 15, 12);
n = Bits32 (opcode, 19, 16);
@@ -10037,13 +10025,13 @@ EmulateInstructionARM::EmulateSTRBImmARM (const uint32_t opcode, const ARMEncodi
switch (encoding)
{
case eEncodingA1:
- // if P == Ô0Õ && W == Ô1Õ then SEE STRBT;
+ // if P == '0' && W == '1' then SEE STRBT;
// t = UInt(Rt); n = UInt(Rn); imm32 = ZeroExtend(imm12, 32);
t = Bits32 (opcode, 15, 12);
n = Bits32 (opcode, 19, 16);
imm32 = Bits32 (opcode, 11, 0);
- // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+ // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
index = BitIsSet (opcode, 24);
add = BitIsSet (opcode, 23);
wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
@@ -10135,14 +10123,14 @@ EmulateInstructionARM::EmulateSTRImmARM (const uint32_t opcode, const ARMEncodin
switch (encoding)
{
case eEncodingA1:
- // if P == Ô0Õ && W == Ô1Õ then SEE STRT;
- // if Rn == Ô1101Õ && P == Ô1Õ && U == Ô0Õ && W == Ô1Õ && imm12 == Ô000000000100Õ then SEE PUSH;
+ // if P == '0' && W == '1' then SEE STRT;
+ // if Rn == '1101' && P == '1' && U == '0' && W == '1' && imm12 == '000000000100' then SEE PUSH;
// t = UInt(Rt); n = UInt(Rn); imm32 = ZeroExtend(imm12, 32);
t = Bits32 (opcode, 15, 12);
n = Bits32 (opcode, 19, 16);
imm32 = Bits32 (opcode, 11, 0);
- // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+ // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
index = BitIsSet (opcode, 24);
add = BitIsSet (opcode, 23);
wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
@@ -10247,15 +10235,15 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
switch (encoding)
{
case eEncodingT1:
- //if P == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
- //if Rn == Ô1111Õ then SEE LDRD (literal);
- //t = UInt(Rt); t2 = UInt(Rt2); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+ //if P == '0' && W == '0' then SEE 'Related encodings';
+ //if Rn == '1111' then SEE LDRD (literal);
+ //t = UInt(Rt); t2 = UInt(Rt2); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
t = Bits32 (opcode, 15, 12);
t2 = Bits32 (opcode, 11, 8);
n = Bits32 (opcode, 19, 16);
imm32 = Bits32 (opcode, 7, 0) << 2;
- //index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (W == Ô1Õ);
+ //index = (P == '1'); add = (U == '1'); wback = (W == '1');
index = BitIsSet (opcode, 24);
add = BitIsSet (opcode, 23);
wback = BitIsSet (opcode, 21);
@@ -10271,8 +10259,8 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
break;
case eEncodingA1:
- //if Rn == Ô1111Õ then SEE LDRD (literal);
- //if Rt<0> == Ô1Õ then UNPREDICTABLE;
+ //if Rn == '1111' then SEE LDRD (literal);
+ //if Rt<0> == '1' then UNPREDICTABLE;
//t = UInt(Rt); t2 = t+1; n = UInt(Rn); imm32 = ZeroExtend(imm4H:imm4L, 32);
t = Bits32 (opcode, 15, 12);
if (BitIsSet (t, 0))
@@ -10281,12 +10269,12 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
n = Bits32 (opcode, 19, 16);
imm32 = (Bits32 (opcode, 11, 8) << 4) | Bits32 (opcode, 3, 0);
- //index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+ //index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
index = BitIsSet (opcode, 24);
add = BitIsSet (opcode, 23);
wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
- //if P == Ô0Õ && W == Ô1Õ then UNPREDICTABLE;
+ //if P == '0' && W == '1' then UNPREDICTABLE;
if (BitIsClear (opcode, 24) && BitIsSet (opcode, 21))
return false;
@@ -10327,8 +10315,11 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
GetRegisterInfo (eRegisterKindDWARF, dwarf_r0 + n, base_reg);
EmulateInstruction::Context context;
- context.type = eContextRegisterLoad;
- context.SetRegisterPlusOffset (base_reg, address - Rn);
+ if (n == 13)
+ context.type = eContextPopRegisterOffStack;
+ else
+ context.type = eContextRegisterLoad;
+ context.SetAddress(address);
const uint32_t addr_byte_size = GetAddressByteSize();
uint32_t data = MemARead (context, address, addr_byte_size, 0, &success);
@@ -10339,8 +10330,7 @@ EmulateInstructionARM::EmulateLDRDImmediate (const uint32_t opcode, const ARMEnc
return false;
//R[t2] = MemA[address+4,4];
-
- context.SetRegisterPlusOffset (base_reg, (address + 4) - Rn);
+ context.SetAddress(address + 4);
data = MemARead (context, address + 4, addr_byte_size, 0, &success);
if (!success)
return false;
@@ -10392,7 +10382,7 @@ EmulateInstructionARM::EmulateLDRDRegister (const uint32_t opcode, const ARMEnco
switch (encoding)
{
case eEncodingA1:
- // if Rt<0> == Ô1Õ then UNPREDICTABLE;
+ // if Rt<0> == '1' then UNPREDICTABLE;
// t = UInt(Rt); t2 = t+1; n = UInt(Rn); m = UInt(Rm);
t = Bits32 (opcode, 15, 12);
if (BitIsSet (t, 0))
@@ -10401,12 +10391,12 @@ EmulateInstructionARM::EmulateLDRDRegister (const uint32_t opcode, const ARMEnco
n = Bits32 (opcode, 19, 16);
m = Bits32 (opcode, 3, 0);
- // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+ // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
index = BitIsSet (opcode, 24);
add = BitIsSet (opcode, 23);
wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
- // if P == Ô0Õ && W == Ô1Õ then UNPREDICTABLE;
+ // if P == '0' && W == '1' then UNPREDICTABLE;
if (BitIsClear (opcode, 24) && BitIsSet (opcode, 21))
return false;
@@ -10454,8 +10444,11 @@ EmulateInstructionARM::EmulateLDRDRegister (const uint32_t opcode, const ARMEnco
address = Rn;
EmulateInstruction::Context context;
- context.type = eContextRegisterLoad;
- context.SetRegisterPlusIndirectOffset (base_reg, offset_reg);
+ if (n == 13)
+ context.type = eContextPopRegisterOffStack;
+ else
+ context.type = eContextRegisterLoad;
+ context.SetAddress(address);
// R[t] = MemA[address,4];
const uint32_t addr_byte_size = GetAddressByteSize();
@@ -10519,14 +10512,14 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
switch (encoding)
{
case eEncodingT1:
- // if P == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
- // t = UInt(Rt); t2 = UInt(Rt2); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+ // if P == '0' && W == '0' then SEE 'Related encodings';
+ // t = UInt(Rt); t2 = UInt(Rt2); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
t = Bits32 (opcode, 15, 12);
t2 = Bits32 (opcode, 11, 8);
n = Bits32 (opcode, 19, 16);
imm32 = Bits32 (opcode, 7, 0) << 2;
- // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (W == Ô1Õ);
+ // index = (P == '1'); add = (U == '1'); wback = (W == '1');
index = BitIsSet (opcode, 24);
add = BitIsSet (opcode, 23);
wback = BitIsSet (opcode, 21);
@@ -10542,7 +10535,7 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
break;
case eEncodingA1:
- // if Rt<0> == Ô1Õ then UNPREDICTABLE;
+ // if Rt<0> == '1' then UNPREDICTABLE;
// t = UInt(Rt); t2 = t+1; n = UInt(Rn); imm32 = ZeroExtend(imm4H:imm4L, 32);
t = Bits32 (opcode, 15, 12);
if (BitIsSet (t, 0))
@@ -10552,12 +10545,12 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
n = Bits32 (opcode, 19, 16);
imm32 = (Bits32 (opcode, 11, 8) << 4) | Bits32 (opcode, 3, 0);
- // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+ // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
index = BitIsSet (opcode, 24);
add = BitIsSet (opcode, 23);
wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
- // if P == Ô0Õ && W == Ô1Õ then UNPREDICTABLE;
+ // if P == '0' && W == '1' then UNPREDICTABLE;
if (BitIsClear (opcode, 24) && BitIsSet (opcode, 21))
return false;
@@ -10605,7 +10598,10 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
return false;
EmulateInstruction::Context context;
- context.type = eContextRegisterStore;
+ if (n == 13)
+ context.type = eContextPushRegisterOnStack;
+ else
+ context.type = eContextRegisterStore;
context.SetRegisterToRegisterPlusOffset (data_reg, base_reg, address - Rn);
const uint32_t addr_byte_size = GetAddressByteSize();
@@ -10627,9 +10623,12 @@ EmulateInstructionARM::EmulateSTRDImm (const uint32_t opcode, const ARMEncoding
//if wback then R[n] = offset_addr;
if (wback)
{
- context.type = eContextAdjustBaseRegister;
+ if (n == 13)
+ context.type = eContextAdjustStackPointer;
+ else
+ context.type = eContextAdjustBaseRegister;
context.SetAddress (offset_addr);
-
+
if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_r0 + n, offset_addr))
return false;
}
@@ -10667,7 +10666,7 @@ EmulateInstructionARM::EmulateSTRDReg (const uint32_t opcode, const ARMEncoding
switch (encoding)
{
case eEncodingA1:
- // if Rt<0> == Ô1Õ then UNPREDICTABLE;
+ // if Rt<0> == '1' then UNPREDICTABLE;
// t = UInt(Rt); t2 = t+1; n = UInt(Rn); m = UInt(Rm);
t = Bits32 (opcode, 15, 12);
if (BitIsSet (t, 0))
@@ -10677,12 +10676,12 @@ EmulateInstructionARM::EmulateSTRDReg (const uint32_t opcode, const ARMEncoding
n = Bits32 (opcode, 19, 16);
m = Bits32 (opcode, 3, 0);
- // index = (P == Ô1Õ); add = (U == Ô1Õ); wback = (P == Ô0Õ) || (W == Ô1Õ);
+ // index = (P == '1'); add = (U == '1'); wback = (P == '0') || (W == '1');
index = BitIsSet (opcode, 24);
add = BitIsSet (opcode, 23);
wback = BitIsClear (opcode, 24) || BitIsSet (opcode, 21);
- // if P == Ô0Õ && W == Ô1Õ then UNPREDICTABLE;
+ // if P == '0' && W == '1' then UNPREDICTABLE;
if (BitIsClear (opcode, 24) && BitIsSet (opcode, 21))
return false;
@@ -10737,7 +10736,11 @@ EmulateInstructionARM::EmulateSTRDReg (const uint32_t opcode, const ARMEncoding
return false;
EmulateInstruction::Context context;
- context.type = eContextRegisterStore;
+ if (t == 13)
+ context.type = eContextPushRegisterOnStack;
+ else
+ context.type = eContextRegisterStore;
+
GetRegisterInfo (eRegisterKindDWARF, dwarf_r0 + t, data_reg);
context.SetRegisterToRegisterPlusIndirectOffset (base_reg, offset_reg, data_reg);
@@ -10808,25 +10811,25 @@ EmulateInstructionARM::EmulateVLDM (const uint32_t opcode, const ARMEncoding enc
{
case eEncodingT1:
case eEncodingA1:
- // if P == Ô0Õ && U == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
- // if P == Ô0Õ && U == Ô1Õ && W == Ô1Õ && Rn == Ô1101Õ then SEE VPOP;
- // if P == Ô1Õ && W == Ô0Õ then SEE VLDR;
- // if P == U && W == Ô1Õ then UNDEFINED;
+ // if P == '0' && U == '0' && W == '0' then SEE 'Related encodings';
+ // if P == '0' && U == '1' && W == '1' && Rn == '1101' then SEE VPOP;
+ // if P == '1' && W == '0' then SEE VLDR;
+ // if P == U && W == '1' then UNDEFINED;
if ((Bit32 (opcode, 24) == Bit32 (opcode, 23)) && BitIsSet (opcode, 21))
return false;
// // Remaining combinations are PUW = 010 (IA without !), 011 (IA with !), 101 (DB with !)
- // single_regs = FALSE; add = (U == Ô1Õ); wback = (W == Ô1Õ);
+ // single_regs = FALSE; add = (U == '1'); wback = (W == '1');
single_regs = false;
add = BitIsSet (opcode, 23);
wback = BitIsSet (opcode, 21);
- // d = UInt(D:Vd); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+ // d = UInt(D:Vd); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
d = (Bit32 (opcode, 22) << 4) | Bits32 (opcode, 15, 12);
n = Bits32 (opcode, 19, 16);
imm32 = Bits32 (opcode, 7, 0) << 2;
- // regs = UInt(imm8) DIV 2; // If UInt(imm8) is odd, see ÒFLDMXÓ.
+ // regs = UInt(imm8) DIV 2; // If UInt(imm8) is odd, see 'FLDMX'.
regs = Bits32 (opcode, 7, 0) / 2;
// if n == 15 && (wback || CurrentInstrSet() != InstrSet_ARM) then UNPREDICTABLE;
@@ -10841,22 +10844,22 @@ EmulateInstructionARM::EmulateVLDM (const uint32_t opcode, const ARMEncoding enc
case eEncodingT2:
case eEncodingA2:
- // if P == Ô0Õ && U == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
- // if P == Ô0Õ && U == Ô1Õ && W == Ô1Õ && Rn == Ô1101Õ then SEE VPOP;
- // if P == Ô1Õ && W == Ô0Õ then SEE VLDR;
- // if P == U && W == Ô1Õ then UNDEFINED;
+ // if P == '0' && U == '0' && W == '0' then SEE 'Related encodings';
+ // if P == '0' && U == '1' && W == '1' && Rn == '1101' then SEE VPOP;
+ // if P == '1' && W == '0' then SEE VLDR;
+ // if P == U && W == '1' then UNDEFINED;
if ((Bit32 (opcode, 24) == Bit32 (opcode, 23)) && BitIsSet (opcode, 21))
return false;
// // Remaining combinations are PUW = 010 (IA without !), 011 (IA with !), 101 (DB with !)
- // single_regs = TRUE; add = (U == Ô1Õ); wback = (W == Ô1Õ); d = UInt(Vd:D); n = UInt(Rn);
+ // single_regs = TRUE; add = (U == '1'); wback = (W == '1'); d = UInt(Vd:D); n = UInt(Rn);
single_regs = true;
add = BitIsSet (opcode, 23);
wback = BitIsSet (opcode, 21);
d = (Bits32 (opcode, 15, 12) << 1) | Bit32 (opcode, 22);
n = Bits32 (opcode, 19, 16);
- // imm32 = ZeroExtend(imm8:Õ00Õ, 32); regs = UInt(imm8);
+ // imm32 = ZeroExtend(imm8:'00', 32); regs = UInt(imm8);
imm32 = Bits32 (opcode, 7, 0) << 2;
regs = Bits32 (opcode, 7, 0);
@@ -11000,25 +11003,25 @@ EmulateInstructionARM::EmulateVSTM (const uint32_t opcode, const ARMEncoding enc
{
case eEncodingT1:
case eEncodingA1:
- // if P == Ô0Õ && U == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
- // if P == Ô1Õ && U == Ô0Õ && W == Ô1Õ && Rn == Ô1101Õ then SEE VPUSH;
- // if P == Ô1Õ && W == Ô0Õ then SEE VSTR;
- // if P == U && W == Ô1Õ then UNDEFINED;
+ // if P == '0' && U == '0' && W == '0' then SEE 'Related encodings';
+ // if P == '1' && U == '0' && W == '1' && Rn == '1101' then SEE VPUSH;
+ // if P == '1' && W == '0' then SEE VSTR;
+ // if P == U && W == '1' then UNDEFINED;
if ((Bit32 (opcode, 24) == Bit32 (opcode, 23)) && BitIsSet (opcode, 21))
return false;
// // Remaining combinations are PUW = 010 (IA without !), 011 (IA with !), 101 (DB with !)
- // single_regs = FALSE; add = (U == Ô1Õ); wback = (W == Ô1Õ);
+ // single_regs = FALSE; add = (U == '1'); wback = (W == '1');
single_regs = false;
add = BitIsSet (opcode, 23);
wback = BitIsSet (opcode, 21);
- // d = UInt(D:Vd); n = UInt(Rn); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+ // d = UInt(D:Vd); n = UInt(Rn); imm32 = ZeroExtend(imm8:'00', 32);
d = (Bit32 (opcode, 22) << 4) | Bits32 (opcode, 15, 12);
n = Bits32 (opcode, 19, 16);
imm32 = Bits32 (opcode, 7, 0) << 2;
- // regs = UInt(imm8) DIV 2; // If UInt(imm8) is odd, see ÒFSTMXÓ.
+ // regs = UInt(imm8) DIV 2; // If UInt(imm8) is odd, see 'FSTMX'.
regs = Bits32 (opcode, 7, 0) / 2;
// if n == 15 && (wback || CurrentInstrSet() != InstrSet_ARM) then UNPREDICTABLE;
@@ -11033,22 +11036,22 @@ EmulateInstructionARM::EmulateVSTM (const uint32_t opcode, const ARMEncoding enc
case eEncodingT2:
case eEncodingA2:
- // if P == Ô0Õ && U == Ô0Õ && W == Ô0Õ then SEE ÒRelated encodingsÓ;
- // if P == Ô1Õ && U == Ô0Õ && W == Ô1Õ && Rn == Ô1101Õ then SEE VPUSH;
- // if P == Ô1Õ && W == Ô0Õ then SEE VSTR;
- // if P == U && W == Ô1Õ then UNDEFINED;
+ // if P == '0' && U == '0' && W == '0' then SEE 'Related encodings';
+ // if P == '1' && U == '0' && W == '1' && Rn == '1101' then SEE VPUSH;
+ // if P == '1' && W == '0' then SEE VSTR;
+ // if P == U && W == '1' then UNDEFINED;
if ((Bit32 (opcode, 24) == Bit32 (opcode, 23)) && BitIsSet (opcode, 21))
return false;
// // Remaining combinations are PUW = 010 (IA without !), 011 (IA with !), 101 (DB with !)
- // single_regs = TRUE; add = (U == Ô1Õ); wback = (W == Ô1Õ); d = UInt(Vd:D); n = UInt(Rn);
+ // single_regs = TRUE; add = (U == '1'); wback = (W == '1'); d = UInt(Vd:D); n = UInt(Rn);
single_regs = true;
add = BitIsSet (opcode, 23);
wback = BitIsSet (opcode, 21);
d = (Bits32 (opcode, 15, 12) << 1) | Bit32 (opcode, 22);
n = Bits32 (opcode, 19, 16);
- // imm32 = ZeroExtend(imm8:Õ00Õ, 32); regs = UInt(imm8);
+ // imm32 = ZeroExtend(imm8:'00', 32); regs = UInt(imm8);
imm32 = Bits32 (opcode, 7, 0) << 2;
regs = Bits32 (opcode, 7, 0);
@@ -11193,7 +11196,7 @@ EmulateInstructionARM::EmulateVLDR (const uint32_t opcode, ARMEncoding encoding)
{
case eEncodingT1:
case eEncodingA1:
- // single_reg = FALSE; add = (U == Ô1Õ); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+ // single_reg = FALSE; add = (U == '1'); imm32 = ZeroExtend(imm8:'00', 32);
single_reg = false;
add = BitIsSet (opcode, 23);
imm32 = Bits32 (opcode, 7, 0) << 2;
@@ -11206,7 +11209,7 @@ EmulateInstructionARM::EmulateVLDR (const uint32_t opcode, ARMEncoding encoding)
case eEncodingT2:
case eEncodingA2:
- // single_reg = TRUE; add = (U == Ô1Õ); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+ // single_reg = TRUE; add = (U == '1'); imm32 = ZeroExtend(imm8:'00', 32);
single_reg = true;
add = BitIsSet (opcode, 23);
imm32 = Bits32 (opcode, 7, 0) << 2;
@@ -11322,7 +11325,7 @@ EmulateInstructionARM::EmulateVSTR (const uint32_t opcode, ARMEncoding encoding)
{
case eEncodingT1:
case eEncodingA1:
- // single_reg = FALSE; add = (U == Ô1Õ); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+ // single_reg = FALSE; add = (U == '1'); imm32 = ZeroExtend(imm8:'00', 32);
single_reg = false;
add = BitIsSet (opcode, 23);
imm32 = Bits32 (opcode, 7, 0) << 2;
@@ -11339,7 +11342,7 @@ EmulateInstructionARM::EmulateVSTR (const uint32_t opcode, ARMEncoding encoding)
case eEncodingT2:
case eEncodingA2:
- // single_reg = TRUE; add = (U == Ô1Õ); imm32 = ZeroExtend(imm8:Õ00Õ, 32);
+ // single_reg = TRUE; add = (U == '1'); imm32 = ZeroExtend(imm8:'00', 32);
single_reg = true;
add = BitIsSet (opcode, 23);
imm32 = Bits32 (opcode, 7, 0) << 2;
@@ -11461,16 +11464,16 @@ EmulateInstructionARM::EmulateVLD1Multiple (const uint32_t opcode, ARMEncoding e
case eEncodingA1:
{
// case type of
- // when Ô0111Õ
- // regs = 1; if align<1> == Ô1Õ then UNDEFINED;
- // when Ô1010Õ
- // regs = 2; if align == Ô11Õ then UNDEFINED;
- // when Ô0110Õ
- // regs = 3; if align<1> == Ô1Õ then UNDEFINED;
- // when Ô0010Õ
+ // when '0111'
+ // regs = 1; if align<1> == '1' then UNDEFINED;
+ // when '1010'
+ // regs = 2; if align == '11' then UNDEFINED;
+ // when '0110'
+ // regs = 3; if align<1> == '1' then UNDEFINED;
+ // when '0010'
// regs = 4;
// otherwise
- // SEE ÒRelated encodingsÓ;
+ // SEE 'Related encodings';
uint32_t type = Bits32 (opcode, 11, 8);
uint32_t align = Bits32 (opcode, 5, 4);
if (type == 7) // '0111'
@@ -11499,7 +11502,7 @@ EmulateInstructionARM::EmulateVLD1Multiple (const uint32_t opcode, ARMEncoding e
else
return false;
- // alignment = if align == Ô00Õ then 1 else 4 << UInt(align);
+ // alignment = if align == '00' then 1 else 4 << UInt(align);
if (align == 0)
alignment = 1;
else
@@ -11624,13 +11627,13 @@ EmulateInstructionARM::EmulateVLD1Single (const uint32_t opcode, const ARMEncodi
{
uint32_t size = Bits32 (opcode, 11, 10);
uint32_t index_align = Bits32 (opcode, 7, 4);
- // if size == Ô11Õ then SEE VLD1 (single element to all lanes);
+ // if size == '11' then SEE VLD1 (single element to all lanes);
if (size == 3)
return EmulateVLD1SingleAll (opcode, encoding);
// case size of
if (size == 0) // when '00'
{
- // if index_align<0> != Ô0Õ then UNDEFINED;
+ // if index_align<0> != '0' then UNDEFINED;
if (BitIsClear (index_align, 0))
return false;
@@ -11640,9 +11643,9 @@ EmulateInstructionARM::EmulateVLD1Single (const uint32_t opcode, const ARMEncodi
index = Bits32 (index_align, 3, 1);
alignment = 1;
}
- else if (size == 1) // when Ô01Õ
+ else if (size == 1) // when '01'
{
- // if index_align<1> != Ô0Õ then UNDEFINED;
+ // if index_align<1> != '0' then UNDEFINED;
if (BitIsClear (index_align, 1))
return false;
@@ -11651,19 +11654,19 @@ EmulateInstructionARM::EmulateVLD1Single (const uint32_t opcode, const ARMEncodi
esize = 16;
index = Bits32 (index_align, 3, 2);
- // alignment = if index_align<0> == Ô0Õ then 1 else 2;
+ // alignment = if index_align<0> == '0' then 1 else 2;
if (BitIsClear (index_align, 0))
alignment = 1;
else
alignment = 2;
}
- else if (size == 2) // when Ô10Õ
+ else if (size == 2) // when '10'
{
- // if index_align<2> != Ô0Õ then UNDEFINED;
+ // if index_align<2> != '0' then UNDEFINED;
if (BitIsClear (index_align, 2))
return false;
- // if index_align<1:0> != Ô00Õ && index_align<1:0> != Ô11Õ then UNDEFINED;
+ // if index_align<1:0> != '00' && index_align<1:0> != '11' then UNDEFINED;
if ((Bits32 (index_align, 1, 0) != 0) && (Bits32 (index_align, 1, 0) != 3))
return false;
@@ -11672,7 +11675,7 @@ EmulateInstructionARM::EmulateVLD1Single (const uint32_t opcode, const ARMEncodi
esize = 32;
index = Bit32 (index_align, 3);
- // alignment = if index_align<1:0> == Ô00Õ then 1 else 4;
+ // alignment = if index_align<1:0> == '00' then 1 else 4;
if (Bits32 (index_align, 1, 0) == 0)
alignment = 1;
else
@@ -11806,35 +11809,35 @@ EmulateInstructionARM::EmulateVST1Multiple (const uint32_t opcode, ARMEncoding e
uint32_t align = Bits32 (opcode, 5, 4);
// case type of
- if (type == 7) // when Ô0111Õ
+ if (type == 7) // when '0111'
{
- // regs = 1; if align<1> == Ô1Õ then UNDEFINED;
+ // regs = 1; if align<1> == '1' then UNDEFINED;
regs = 1;
if (BitIsSet (align, 1))
return false;
}
- else if (type == 10) // when Ô1010Õ
+ else if (type == 10) // when '1010'
{
- // regs = 2; if align == Ô11Õ then UNDEFINED;
+ // regs = 2; if align == '11' then UNDEFINED;
regs = 2;
if (align == 3)
return false;
}
- else if (type == 6) // when Ô0110Õ
+ else if (type == 6) // when '0110'
{
- // regs = 3; if align<1> == Ô1Õ then UNDEFINED;
+ // regs = 3; if align<1> == '1' then UNDEFINED;
regs = 3;
if (BitIsSet (align, 1))
return false;
}
- else if (type == 2) // when Ô0010Õ
+ else if (type == 2) // when '0010'
// regs = 4;
regs = 4;
else // otherwise
- // SEE ÒRelated encodingsÓ;
+ // SEE 'Related encodings';
return false;
- // alignment = if align == Ô00Õ then 1 else 4 << UInt(align);
+ // alignment = if align == '00' then 1 else 4 << UInt(align);
if (align == 0)
alignment = 1;
else
@@ -11964,14 +11967,14 @@ EmulateInstructionARM::EmulateVST1Single (const uint32_t opcode, ARMEncoding enc
uint32_t size = Bits32 (opcode, 11, 10);
uint32_t index_align = Bits32 (opcode, 7, 4);
- // if size == Ô11Õ then UNDEFINED;
+ // if size == '11' then UNDEFINED;
if (size == 3)
return false;
// case size of
- if (size == 0) // when Ô00Õ
+ if (size == 0) // when '00'
{
- // if index_align<0> != Ô0Õ then UNDEFINED;
+ // if index_align<0> != '0' then UNDEFINED;
if (BitIsClear (index_align, 0))
return false;
// ebytes = 1; esize = 8; index = UInt(index_align<3:1>); alignment = 1;
@@ -11980,9 +11983,9 @@ EmulateInstructionARM::EmulateVST1Single (const uint32_t opcode, ARMEncoding enc
index = Bits32 (index_align, 3, 1);
alignment = 1;
}
- else if (size == 1) // when Ô01Õ
+ else if (size == 1) // when '01'
{
- // if index_align<1> != Ô0Õ then UNDEFINED;
+ // if index_align<1> != '0' then UNDEFINED;
if (BitIsClear (index_align, 1))
return false;
@@ -11991,19 +11994,19 @@ EmulateInstructionARM::EmulateVST1Single (const uint32_t opcode, ARMEncoding enc
esize = 16;
index = Bits32 (index_align, 3, 2);
- // alignment = if index_align<0> == Ô0Õ then 1 else 2;
+ // alignment = if index_align<0> == '0' then 1 else 2;
if (BitIsClear (index_align, 0))
alignment = 1;
else
alignment = 2;
}
- else if (size == 2) // when Ô10Õ
+ else if (size == 2) // when '10'
{
- // if index_align<2> != Ô0Õ then UNDEFINED;
+ // if index_align<2> != '0' then UNDEFINED;
if (BitIsClear (index_align, 2))
return false;
- // if index_align<1:0> != Ô00Õ && index_align<1:0> != Ô11Õ then UNDEFINED;
+ // if index_align<1:0> != '00' && index_align<1:0> != '11' then UNDEFINED;
if ((Bits32 (index_align, 1, 0) != 0) && (Bits32 (index_align, 1, 0) != 3))
return false;
@@ -12012,7 +12015,7 @@ EmulateInstructionARM::EmulateVST1Single (const uint32_t opcode, ARMEncoding enc
esize = 32;
index = Bit32 (index_align, 3);
- // alignment = if index_align<1:0> == Ô00Õ then 1 else 4;
+ // alignment = if index_align<1:0> == '00' then 1 else 4;
if (Bits32 (index_align, 1, 0) == 0)
alignment = 1;
else
@@ -12125,12 +12128,12 @@ EmulateInstructionARM::EmulateVLD1SingleAll (const uint32_t opcode, const ARMEnc
case eEncodingT1:
case eEncodingA1:
{
- //if size == Ô11Õ || (size == Ô00Õ && a == Ô1Õ) then UNDEFINED;
+ //if size == '11' || (size == '00' && a == '1') then UNDEFINED;
uint32_t size = Bits32 (opcode, 7, 6);
if ((size == 3) || ((size == 0) && BitIsSet (opcode, 4)))
return false;
- //ebytes = 1 << UInt(size); elements = 8 DIV ebytes; regs = if T == Ô0Õ then 1 else 2;
+ //ebytes = 1 << UInt(size); elements = 8 DIV ebytes; regs = if T == '0' then 1 else 2;
ebytes = 1 << size;
elements = 8 / ebytes;
if (BitIsClear (opcode, 5))
@@ -12138,7 +12141,7 @@ EmulateInstructionARM::EmulateVLD1SingleAll (const uint32_t opcode, const ARMEnc
else
regs = 2;
- //alignment = if a == Ô0Õ then 1 else ebytes;
+ //alignment = if a == '0' then 1 else ebytes;
if (BitIsClear (opcode, 4))
alignment = 1;
else
@@ -12235,19 +12238,19 @@ EmulateInstructionARM::EmulateSUBSPcLrEtc (const uint32_t opcode, const ARMEncod
UNPREDICTABLE;
operand2 = if register_form then Shift(R[m], shift_t, shift_n, APSR.C) else imm32;
case opcode of
- when Ô0000Õ result = R[n] AND operand2; // AND
- when Ô0001Õ result = R[n] EOR operand2; // EOR
- when Ô0010Õ (result, -, -) = AddWithCarry(R[n], NOT(operand2), Ô1Õ); // SUB
- when Ô0011Õ (result, -, -) = AddWithCarry(NOT(R[n]), operand2, Ô1Õ); // RSB
- when Ô0100Õ (result, -, -) = AddWithCarry(R[n], operand2, Ô0Õ); // ADD
- when Ô0101Õ (result, -, -) = AddWithCarry(R[n], operand2, APSR.c); // ADC
- when Ô0110Õ (result, -, -) = AddWithCarry(R[n], NOT(operand2), APSR.C); // SBC
- when Ô0111Õ (result, -, -) = AddWithCarry(NOT(R[n]), operand2, APSR.C); // RSC
- when Ô1100Õ result = R[n] OR operand2; // ORR
- when Ô1101Õ result = operand2; // MOV
- when Ô1110Õ result = R[n] AND NOT(operand2); // BIC
- when Ô1111Õ result = NOT(operand2); // MVN
- CPSRWriteByInstr(SPSR[], Ô1111Õ, TRUE);
+ when '0000' result = R[n] AND operand2; // AND
+ when '0001' result = R[n] EOR operand2; // EOR
+ when '0010' (result, -, -) = AddWithCarry(R[n], NOT(operand2), '1'); // SUB
+ when '0011' (result, -, -) = AddWithCarry(NOT(R[n]), operand2, '1'); // RSB
+ when '0100' (result, -, -) = AddWithCarry(R[n], operand2, '0'); // ADD
+ when '0101' (result, -, -) = AddWithCarry(R[n], operand2, APSR.c); // ADC
+ when '0110' (result, -, -) = AddWithCarry(R[n], NOT(operand2), APSR.C); // SBC
+ when '0111' (result, -, -) = AddWithCarry(NOT(R[n]), operand2, APSR.C); // RSC
+ when '1100' result = R[n] OR operand2; // ORR
+ when '1101' result = operand2; // MOV
+ when '1110' result = R[n] AND NOT(operand2); // BIC
+ when '1111' result = NOT(operand2); // MVN
+ CPSRWriteByInstr(SPSR[], '1111', TRUE);
BranchWritePC(result);
#endif
@@ -12267,7 +12270,7 @@ EmulateInstructionARM::EmulateSUBSPcLrEtc (const uint32_t opcode, const ARMEncod
{
case eEncodingT1:
// if CurrentInstrSet() == InstrSet_ThumbEE then UNPREDICTABLE
- // n = 14; imm32 = ZeroExtend(imm8, 32); register_form = FALSE; opcode = Ô0010Õ; // = SUB
+ // n = 14; imm32 = ZeroExtend(imm8, 32); register_form = FALSE; opcode = '0010'; // = SUB
n = 14;
imm32 = Bits32 (opcode, 7, 0);
register_form = false;
@@ -12329,62 +12332,62 @@ EmulateInstructionARM::EmulateSUBSPcLrEtc (const uint32_t opcode, const ARMEncod
// case opcode of
switch (code)
{
- case 0: // when Ô0000Õ
+ case 0: // when '0000'
// result = R[n] AND operand2; // AND
result.result = Rn & operand2;
break;
- case 1: // when Ô0001Õ
+ case 1: // when '0001'
// result = R[n] EOR operand2; // EOR
result.result = Rn ^ operand2;
break;
- case 2: // when Ô0010Õ
- // (result, -, -) = AddWithCarry(R[n], NOT(operand2), Ô1Õ); // SUB
+ case 2: // when '0010'
+ // (result, -, -) = AddWithCarry(R[n], NOT(operand2), '1'); // SUB
result = AddWithCarry (Rn, ~(operand2), 1);
break;
- case 3: // when Ô0011Õ
- // (result, -, -) = AddWithCarry(NOT(R[n]), operand2, Ô1Õ); // RSB
+ case 3: // when '0011'
+ // (result, -, -) = AddWithCarry(NOT(R[n]), operand2, '1'); // RSB
result = AddWithCarry (~(Rn), operand2, 1);
break;
- case 4: // when Ô0100Õ
- // (result, -, -) = AddWithCarry(R[n], operand2, Ô0Õ); // ADD
+ case 4: // when '0100'
+ // (result, -, -) = AddWithCarry(R[n], operand2, '0'); // ADD
result = AddWithCarry (Rn, operand2, 0);
break;
- case 5: // when Ô0101Õ
+ case 5: // when '0101'
// (result, -, -) = AddWithCarry(R[n], operand2, APSR.c); // ADC
result = AddWithCarry (Rn, operand2, APSR_C);
break;
- case 6: // when Ô0110Õ
+ case 6: // when '0110'
// (result, -, -) = AddWithCarry(R[n], NOT(operand2), APSR.C); // SBC
result = AddWithCarry (Rn, ~(operand2), APSR_C);
break;
- case 7: // when Ô0111Õ
+ case 7: // when '0111'
// (result, -, -) = AddWithCarry(NOT(R[n]), operand2, APSR.C); // RSC
result = AddWithCarry (~(Rn), operand2, APSR_C);
break;
- case 10: // when Ô1100Õ
+ case 10: // when '1100'
// result = R[n] OR operand2; // ORR
result.result = Rn | operand2;
break;
- case 11: // when Ô1101Õ
+ case 11: // when '1101'
// result = operand2; // MOV
result.result = operand2;
break;
- case 12: // when Ô1110Õ
+ case 12: // when '1110'
// result = R[n] AND NOT(operand2); // BIC
result.result = Rn & ~(operand2);
break;
- case 15: // when Ô1111Õ
+ case 15: // when '1111'
// result = NOT(operand2); // MVN
result.result = ~(operand2);
break;
@@ -12392,7 +12395,7 @@ EmulateInstructionARM::EmulateSUBSPcLrEtc (const uint32_t opcode, const ARMEncod
default:
return false;
}
- // CPSRWriteByInstr(SPSR[], Ô1111Õ, TRUE);
+ // CPSRWriteByInstr(SPSR[], '1111', TRUE);
// For now, in emulation mode, we don't have access to the SPSR, so we will use the CPSR instead, and hope for
// the best.
@@ -13076,7 +13079,7 @@ EmulateInstructionARM::ArchVersion ()
}
bool
-EmulateInstructionARM::ConditionPassed (const uint32_t opcode, bool *is_conditional)
+EmulateInstructionARM::ConditionPassed (const uint32_t opcode)
{
// If we are ignoring conditions, then always return true.
// this allows us to iterate over disassembly code and still
@@ -13084,12 +13087,8 @@ EmulateInstructionARM::ConditionPassed (const uint32_t opcode, bool *is_conditio
// bits set in the CPSR register...
if (m_ignore_conditions)
return true;
-
- if (is_conditional)
- *is_conditional = true;
const uint32_t cond = CurrentCond (opcode);
-
if (cond == UINT32_MAX)
return false;
@@ -13149,8 +13148,6 @@ EmulateInstructionARM::ConditionPassed (const uint32_t opcode, bool *is_conditio
case 7:
// Always execute (cond == 0b1110, or the special 0b1111 which gives
// opcodes different meanings, but always means execution happens.
- if (is_conditional)
- *is_conditional = false;
return true;
}
@@ -13643,6 +13640,13 @@ EmulateInstructionARM::EvaluateInstruction (uint32_t evaluate_options)
}
bool
+EmulateInstructionARM::IsInstructionConditional()
+{
+ const uint32_t cond = CurrentCond (m_opcode.GetOpcode32());
+ return cond != 0xe && cond != 0xf && cond != UINT32_MAX;
+}
+
+bool
EmulateInstructionARM::TestEmulation (Stream *out_stream, ArchSpec &arch, OptionValueDictionary *test_data)
{
if (!test_data)
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 06:54:02 +0000