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Unified Diff: src/arm/disasm-arm.cc

Issue 6274009: ARM: Merging constants in simulator and assembler header files and other clea... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 11 months ago
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Index: src/arm/disasm-arm.cc
===================================================================
--- src/arm/disasm-arm.cc (revision 6474)
+++ src/arm/disasm-arm.cc (working copy)
@@ -64,12 +64,10 @@
#include "platform.h"
-namespace assembler {
-namespace arm {
+namespace v8 {
+namespace internal {
-namespace v8i = v8::internal;
-
//------------------------------------------------------------------------------
// Decoder decodes and disassembles instructions into an output buffer.
@@ -78,7 +76,7 @@
class Decoder {
public:
Decoder(const disasm::NameConverter& converter,
- v8::internal::Vector<char> out_buffer)
+ Vector<char> out_buffer)
: converter_(converter),
out_buffer_(out_buffer),
out_buffer_pos_(0) {
@@ -100,45 +98,45 @@
void PrintRegister(int reg);
void PrintSRegister(int reg);
void PrintDRegister(int reg);
- int FormatVFPRegister(Instr* instr, const char* format);
- void PrintMovwMovt(Instr* instr);
- int FormatVFPinstruction(Instr* instr, const char* format);
- void PrintCondition(Instr* instr);
- void PrintShiftRm(Instr* instr);
- void PrintShiftImm(Instr* instr);
- void PrintShiftSat(Instr* instr);
- void PrintPU(Instr* instr);
+ int FormatVFPRegister(Instruction* instr, const char* format);
+ void PrintMovwMovt(Instruction* instr);
+ int FormatVFPinstruction(Instruction* instr, const char* format);
+ void PrintCondition(Instruction* instr);
+ void PrintShiftRm(Instruction* instr);
+ void PrintShiftImm(Instruction* instr);
+ void PrintShiftSat(Instruction* instr);
+ void PrintPU(Instruction* instr);
void PrintSoftwareInterrupt(SoftwareInterruptCodes svc);
// Handle formatting of instructions and their options.
- int FormatRegister(Instr* instr, const char* option);
- int FormatOption(Instr* instr, const char* option);
- void Format(Instr* instr, const char* format);
- void Unknown(Instr* instr);
+ int FormatRegister(Instruction* instr, const char* option);
+ int FormatOption(Instruction* instr, const char* option);
+ void Format(Instruction* instr, const char* format);
+ void Unknown(Instruction* instr);
// Each of these functions decodes one particular instruction type, a 3-bit
// field in the instruction encoding.
// Types 0 and 1 are combined as they are largely the same except for the way
// they interpret the shifter operand.
- void DecodeType01(Instr* instr);
- void DecodeType2(Instr* instr);
- void DecodeType3(Instr* instr);
- void DecodeType4(Instr* instr);
- void DecodeType5(Instr* instr);
- void DecodeType6(Instr* instr);
+ void DecodeType01(Instruction* instr);
+ void DecodeType2(Instruction* instr);
+ void DecodeType3(Instruction* instr);
+ void DecodeType4(Instruction* instr);
+ void DecodeType5(Instruction* instr);
+ void DecodeType6(Instruction* instr);
// Type 7 includes special Debugger instructions.
- int DecodeType7(Instr* instr);
+ int DecodeType7(Instruction* instr);
// For VFP support.
- void DecodeTypeVFP(Instr* instr);
- void DecodeType6CoprocessorIns(Instr* instr);
+ void DecodeTypeVFP(Instruction* instr);
+ void DecodeType6CoprocessorIns(Instruction* instr);
- void DecodeVMOVBetweenCoreAndSinglePrecisionRegisters(Instr* instr);
- void DecodeVCMP(Instr* instr);
- void DecodeVCVTBetweenDoubleAndSingle(Instr* instr);
- void DecodeVCVTBetweenFloatingPointAndInteger(Instr* instr);
+ void DecodeVMOVBetweenCoreAndSinglePrecisionRegisters(Instruction* instr);
+ void DecodeVCMP(Instruction* instr);
+ void DecodeVCVTBetweenDoubleAndSingle(Instruction* instr);
+ void DecodeVCVTBetweenFloatingPointAndInteger(Instruction* instr);
const disasm::NameConverter& converter_;
- v8::internal::Vector<char> out_buffer_;
+ Vector<char> out_buffer_;
int out_buffer_pos_;
DISALLOW_COPY_AND_ASSIGN(Decoder);
@@ -169,15 +167,15 @@
// These condition names are defined in a way to match the native disassembler
// formatting. See for example the command "objdump -d <binary file>".
-static const char* cond_names[max_condition] = {
+static const char* cond_names[kNumberOfConditions] = {
"eq", "ne", "cs" , "cc" , "mi" , "pl" , "vs" , "vc" ,
"hi", "ls", "ge", "lt", "gt", "le", "", "invalid",
};
// Print the condition guarding the instruction.
-void Decoder::PrintCondition(Instr* instr) {
- Print(cond_names[instr->ConditionField()]);
+void Decoder::PrintCondition(Instruction* instr) {
+ Print(cond_names[instr->ConditionValue()]);
}
@@ -188,36 +186,37 @@
// Print the VFP S register name according to the active name converter.
void Decoder::PrintSRegister(int reg) {
- Print(assembler::arm::VFPRegisters::Name(reg, false));
+ Print(VFPRegisters::Name(reg, false));
}
// Print the VFP D register name according to the active name converter.
void Decoder::PrintDRegister(int reg) {
- Print(assembler::arm::VFPRegisters::Name(reg, true));
+ Print(VFPRegisters::Name(reg, true));
}
// These shift names are defined in a way to match the native disassembler
// formatting. See for example the command "objdump -d <binary file>".
-static const char* shift_names[max_shift] = {
+static const char* shift_names[kNumberOfShifts] = {
"lsl", "lsr", "asr", "ror"
};
// Print the register shift operands for the instruction. Generally used for
// data processing instructions.
-void Decoder::PrintShiftRm(Instr* instr) {
- Shift shift = instr->ShiftField();
- int shift_amount = instr->ShiftAmountField();
- int rm = instr->RmField();
+void Decoder::PrintShiftRm(Instruction* instr) {
+ ShiftOp shift = instr->ShiftField();
+ int shift_index = instr->ShiftValue();
+ int shift_amount = instr->ShiftAmountValue();
+ int rm = instr->RmValue();
PrintRegister(rm);
- if ((instr->RegShiftField() == 0) && (shift == LSL) && (shift_amount == 0)) {
+ if ((instr->RegShiftValue() == 0) && (shift == LSL) && (shift_amount == 0)) {
// Special case for using rm only.
return;
}
- if (instr->RegShiftField() == 0) {
+ if (instr->RegShiftValue() == 0) {
// by immediate
if ((shift == ROR) && (shift_amount == 0)) {
Print(", RRX");
@@ -225,14 +224,15 @@
} else if (((shift == LSR) || (shift == ASR)) && (shift_amount == 0)) {
shift_amount = 32;
}
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- ", %s #%d",
- shift_names[shift], shift_amount);
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ ", %s #%d",
+ shift_names[shift_index],
+ shift_amount);
} else {
// by register
- int rs = instr->RsField();
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- ", %s ", shift_names[shift]);
+ int rs = instr->RsValue();
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ ", %s ", shift_names[shift_index]);
PrintRegister(rs);
}
}
@@ -240,43 +240,43 @@
// Print the immediate operand for the instruction. Generally used for data
// processing instructions.
-void Decoder::PrintShiftImm(Instr* instr) {
- int rotate = instr->RotateField() * 2;
- int immed8 = instr->Immed8Field();
+void Decoder::PrintShiftImm(Instruction* instr) {
+ int rotate = instr->RotateValue() * 2;
+ int immed8 = instr->Immed8Value();
int imm = (immed8 >> rotate) | (immed8 << (32 - rotate));
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "#%d", imm);
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "#%d", imm);
}
// Print the optional shift and immediate used by saturating instructions.
-void Decoder::PrintShiftSat(Instr* instr) {
+void Decoder::PrintShiftSat(Instruction* instr) {
int shift = instr->Bits(11, 7);
if (shift > 0) {
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- ", %s #%d",
- shift_names[instr->Bit(6) * 2],
- instr->Bits(11, 7));
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ ", %s #%d",
+ shift_names[instr->Bit(6) * 2],
+ instr->Bits(11, 7));
}
}
// Print PU formatting to reduce complexity of FormatOption.
-void Decoder::PrintPU(Instr* instr) {
+void Decoder::PrintPU(Instruction* instr) {
switch (instr->PUField()) {
- case 0: {
+ case da_x: {
Print("da");
break;
}
- case 1: {
+ case ia_x: {
Print("ia");
break;
}
- case 2: {
+ case db_x: {
Print("db");
break;
}
- case 3: {
+ case ib_x: {
Print("ib");
break;
}
@@ -292,22 +292,22 @@
// the FormatOption method.
void Decoder::PrintSoftwareInterrupt(SoftwareInterruptCodes svc) {
switch (svc) {
- case call_rt_redirected:
- Print("call_rt_redirected");
+ case kCallRtRedirected:
+ Print("call rt redirected");
return;
- case break_point:
- Print("break_point");
+ case kBreakpoint:
+ Print("breakpoint");
return;
default:
- if (svc >= stop) {
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "%d - 0x%x",
- svc & kStopCodeMask,
- svc & kStopCodeMask);
+ if (svc >= kStopCode) {
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "%d - 0x%x",
+ svc & kStopCodeMask,
+ svc & kStopCodeMask);
} else {
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "%d",
- svc);
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "%d",
+ svc);
}
return;
}
@@ -316,32 +316,32 @@
// Handle all register based formatting in this function to reduce the
// complexity of FormatOption.
-int Decoder::FormatRegister(Instr* instr, const char* format) {
+int Decoder::FormatRegister(Instruction* instr, const char* format) {
ASSERT(format[0] == 'r');
if (format[1] == 'n') { // 'rn: Rn register
- int reg = instr->RnField();
+ int reg = instr->RnValue();
PrintRegister(reg);
return 2;
} else if (format[1] == 'd') { // 'rd: Rd register
- int reg = instr->RdField();
+ int reg = instr->RdValue();
PrintRegister(reg);
return 2;
} else if (format[1] == 's') { // 'rs: Rs register
- int reg = instr->RsField();
+ int reg = instr->RsValue();
PrintRegister(reg);
return 2;
} else if (format[1] == 'm') { // 'rm: Rm register
- int reg = instr->RmField();
+ int reg = instr->RmValue();
PrintRegister(reg);
return 2;
} else if (format[1] == 't') { // 'rt: Rt register
- int reg = instr->RtField();
+ int reg = instr->RtValue();
PrintRegister(reg);
return 2;
} else if (format[1] == 'l') {
// 'rlist: register list for load and store multiple instructions
ASSERT(STRING_STARTS_WITH(format, "rlist"));
- int rlist = instr->RlistField();
+ int rlist = instr->RlistValue();
int reg = 0;
Print("{");
// Print register list in ascending order, by scanning the bit mask.
@@ -365,22 +365,22 @@
// Handle all VFP register based formatting in this function to reduce the
// complexity of FormatOption.
-int Decoder::FormatVFPRegister(Instr* instr, const char* format) {
+int Decoder::FormatVFPRegister(Instruction* instr, const char* format) {
ASSERT((format[0] == 'S') || (format[0] == 'D'));
if (format[1] == 'n') {
- int reg = instr->VnField();
- if (format[0] == 'S') PrintSRegister(((reg << 1) | instr->NField()));
+ int reg = instr->VnValue();
+ if (format[0] == 'S') PrintSRegister(((reg << 1) | instr->NValue()));
if (format[0] == 'D') PrintDRegister(reg);
return 2;
} else if (format[1] == 'm') {
- int reg = instr->VmField();
- if (format[0] == 'S') PrintSRegister(((reg << 1) | instr->MField()));
+ int reg = instr->VmValue();
+ if (format[0] == 'S') PrintSRegister(((reg << 1) | instr->MValue()));
if (format[0] == 'D') PrintDRegister(reg);
return 2;
} else if (format[1] == 'd') {
- int reg = instr->VdField();
- if (format[0] == 'S') PrintSRegister(((reg << 1) | instr->DField()));
+ int reg = instr->VdValue();
+ if (format[0] == 'S') PrintSRegister(((reg << 1) | instr->DValue()));
if (format[0] == 'D') PrintDRegister(reg);
return 2;
}
@@ -390,19 +390,19 @@
}
-int Decoder::FormatVFPinstruction(Instr* instr, const char* format) {
+int Decoder::FormatVFPinstruction(Instruction* instr, const char* format) {
Print(format);
return 0;
}
// Print the movw or movt instruction.
-void Decoder::PrintMovwMovt(Instr* instr) {
- int imm = instr->ImmedMovwMovtField();
- int rd = instr->RdField();
+void Decoder::PrintMovwMovt(Instruction* instr) {
+ int imm = instr->ImmedMovwMovtValue();
+ int rd = instr->RdValue();
PrintRegister(rd);
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- ", #%d", imm);
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ ", #%d", imm);
}
@@ -411,7 +411,7 @@
// character of the option string (the option escape has already been
// consumed by the caller.) FormatOption returns the number of
// characters that were consumed from the formatting string.
-int Decoder::FormatOption(Instr* instr, const char* format) {
+int Decoder::FormatOption(Instruction* instr, const char* format) {
switch (format[0]) {
case 'a': { // 'a: accumulate multiplies
if (instr->Bit(21) == 0) {
@@ -434,8 +434,8 @@
}
case 'd': { // 'd: vmov double immediate.
double d = instr->DoubleImmedVmov();
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "#%g", d);
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "#%g", d);
return 1;
}
case 'f': { // 'f: bitfield instructions - v7 and above.
@@ -448,8 +448,8 @@
ASSERT(width > 0);
}
ASSERT((width + lsbit) <= 32);
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "#%d, #%d", lsbit, width);
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "#%d, #%d", lsbit, width);
return 1;
}
case 'h': { // 'h: halfword operation for extra loads and stores
@@ -469,9 +469,9 @@
ASSERT((lsb >= 0) && (lsb <= 31));
ASSERT((width + lsb) <= 32);
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "%d",
- instr->Bits(width + lsb - 1, lsb));
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "%d",
+ instr->Bits(width + lsb - 1, lsb));
return 8;
}
case 'l': { // 'l: branch and link
@@ -505,31 +505,31 @@
ASSERT(STRING_STARTS_WITH(format, "msg"));
byte* str =
reinterpret_cast<byte*>(instr->InstructionBits() & 0x0fffffff);
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "%s", converter_.NameInCode(str));
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "%s", converter_.NameInCode(str));
return 3;
}
case 'o': {
if ((format[3] == '1') && (format[4] == '2')) {
// 'off12: 12-bit offset for load and store instructions
ASSERT(STRING_STARTS_WITH(format, "off12"));
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "%d", instr->Offset12Field());
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "%d", instr->Offset12Value());
return 5;
} else if (format[3] == '0') {
// 'off0to3and8to19 16-bit immediate encoded in bits 19-8 and 3-0.
ASSERT(STRING_STARTS_WITH(format, "off0to3and8to19"));
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "%d",
- (instr->Bits(19, 8) << 4) +
- instr->Bits(3, 0));
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "%d",
+ (instr->Bits(19, 8) << 4) +
+ instr->Bits(3, 0));
return 15;
}
// 'off8: 8-bit offset for extra load and store instructions
ASSERT(STRING_STARTS_WITH(format, "off8"));
- int offs8 = (instr->ImmedHField() << 4) | instr->ImmedLField();
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "%d", offs8);
+ int offs8 = (instr->ImmedHValue() << 4) | instr->ImmedLValue();
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "%d", offs8);
return 4;
}
case 'p': { // 'pu: P and U bits for load and store instructions
@@ -544,10 +544,10 @@
if (format[1] == 'h') { // 'shift_op or 'shift_rm or 'shift_sat.
if (format[6] == 'o') { // 'shift_op
ASSERT(STRING_STARTS_WITH(format, "shift_op"));
- if (instr->TypeField() == 0) {
+ if (instr->TypeValue() == 0) {
PrintShiftRm(instr);
} else {
- ASSERT(instr->TypeField() == 1);
+ ASSERT(instr->TypeValue() == 1);
PrintShiftImm(instr);
}
return 8;
@@ -562,7 +562,7 @@
}
} else if (format[1] == 'v') { // 'svc
ASSERT(STRING_STARTS_WITH(format, "svc"));
- PrintSoftwareInterrupt(instr->SvcField());
+ PrintSoftwareInterrupt(instr->SvcValue());
return 3;
} else if (format[1] == 'i') { // 'sign: signed extra loads and stores
ASSERT(STRING_STARTS_WITH(format, "sign"));
@@ -579,12 +579,12 @@
}
case 't': { // 'target: target of branch instructions
ASSERT(STRING_STARTS_WITH(format, "target"));
- int off = (instr->SImmed24Field() << 2) + 8;
- out_buffer_pos_ += v8i::OS::SNPrintF(
- out_buffer_ + out_buffer_pos_,
- "%+d -> %s",
- off,
- converter_.NameOfAddress(reinterpret_cast<byte*>(instr) + off));
+ int off = (instr->SImmed24Value() << 2) + 8;
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "%+d -> %s",
+ off,
+ converter_.NameOfAddress(
+ reinterpret_cast<byte*>(instr) + off));
return 6;
}
case 'u': { // 'u: signed or unsigned multiplies
@@ -633,7 +633,7 @@
// Format takes a formatting string for a whole instruction and prints it into
// the output buffer. All escaped options are handed to FormatOption to be
// parsed further.
-void Decoder::Format(Instr* instr, const char* format) {
+void Decoder::Format(Instruction* instr, const char* format) {
char cur = *format++;
while ((cur != 0) && (out_buffer_pos_ < (out_buffer_.length() - 1))) {
if (cur == '\'') { // Single quote is used as the formatting escape.
@@ -649,13 +649,13 @@
// For currently unimplemented decodings the disassembler calls Unknown(instr)
// which will just print "unknown" of the instruction bits.
-void Decoder::Unknown(Instr* instr) {
+void Decoder::Unknown(Instruction* instr) {
Format(instr, "unknown");
}
-void Decoder::DecodeType01(Instr* instr) {
- int type = instr->TypeField();
+void Decoder::DecodeType01(Instruction* instr) {
+ int type = instr->TypeValue();
if ((type == 0) && instr->IsSpecialType0()) {
// multiply instruction or extra loads and stores
if (instr->Bits(7, 4) == 9) {
@@ -689,7 +689,7 @@
} else if ((instr->Bit(20) == 0) && ((instr->Bits(7, 4) & 0xd) == 0xd)) {
// ldrd, strd
switch (instr->PUField()) {
- case 0: {
+ case da_x: {
if (instr->Bit(22) == 0) {
Format(instr, "'memop'cond's 'rd, ['rn], -'rm");
} else {
@@ -697,7 +697,7 @@
}
break;
}
- case 1: {
+ case ia_x: {
if (instr->Bit(22) == 0) {
Format(instr, "'memop'cond's 'rd, ['rn], +'rm");
} else {
@@ -705,7 +705,7 @@
}
break;
}
- case 2: {
+ case db_x: {
if (instr->Bit(22) == 0) {
Format(instr, "'memop'cond's 'rd, ['rn, -'rm]'w");
} else {
@@ -713,7 +713,7 @@
}
break;
}
- case 3: {
+ case ib_x: {
if (instr->Bit(22) == 0) {
Format(instr, "'memop'cond's 'rd, ['rn, +'rm]'w");
} else {
@@ -730,7 +730,7 @@
} else {
// extra load/store instructions
switch (instr->PUField()) {
- case 0: {
+ case da_x: {
if (instr->Bit(22) == 0) {
Format(instr, "'memop'cond'sign'h 'rd, ['rn], -'rm");
} else {
@@ -738,7 +738,7 @@
}
break;
}
- case 1: {
+ case ia_x: {
if (instr->Bit(22) == 0) {
Format(instr, "'memop'cond'sign'h 'rd, ['rn], +'rm");
} else {
@@ -746,7 +746,7 @@
}
break;
}
- case 2: {
+ case db_x: {
if (instr->Bit(22) == 0) {
Format(instr, "'memop'cond'sign'h 'rd, ['rn, -'rm]'w");
} else {
@@ -754,7 +754,7 @@
}
break;
}
- case 3: {
+ case ib_x: {
if (instr->Bit(22) == 0) {
Format(instr, "'memop'cond'sign'h 'rd, ['rn, +'rm]'w");
} else {
@@ -772,7 +772,7 @@
}
} else if ((type == 0) && instr->IsMiscType0()) {
if (instr->Bits(22, 21) == 1) {
- switch (instr->Bits(7, 4)) {
+ switch (instr->BitField(7, 4)) {
case BX:
Format(instr, "bx'cond 'rm");
break;
@@ -787,7 +787,7 @@
break;
}
} else if (instr->Bits(22, 21) == 3) {
- switch (instr->Bits(7, 4)) {
+ switch (instr->BitField(7, 4)) {
case CLZ:
Format(instr, "clz'cond 'rd, 'rm");
break;
@@ -894,27 +894,27 @@
}
-void Decoder::DecodeType2(Instr* instr) {
+void Decoder::DecodeType2(Instruction* instr) {
switch (instr->PUField()) {
- case 0: {
+ case da_x: {
if (instr->HasW()) {
Unknown(instr); // not used in V8
}
Format(instr, "'memop'cond'b 'rd, ['rn], #-'off12");
break;
}
- case 1: {
+ case ia_x: {
if (instr->HasW()) {
Unknown(instr); // not used in V8
}
Format(instr, "'memop'cond'b 'rd, ['rn], #+'off12");
break;
}
- case 2: {
+ case db_x: {
Format(instr, "'memop'cond'b 'rd, ['rn, #-'off12]'w");
break;
}
- case 3: {
+ case ib_x: {
Format(instr, "'memop'cond'b 'rd, ['rn, #+'off12]'w");
break;
}
@@ -927,14 +927,14 @@
}
-void Decoder::DecodeType3(Instr* instr) {
+void Decoder::DecodeType3(Instruction* instr) {
switch (instr->PUField()) {
- case 0: {
+ case da_x: {
ASSERT(!instr->HasW());
Format(instr, "'memop'cond'b 'rd, ['rn], -'shift_rm");
break;
}
- case 1: {
+ case ia_x: {
if (instr->HasW()) {
ASSERT(instr->Bits(5, 4) == 0x1);
if (instr->Bit(22) == 0x1) {
@@ -947,11 +947,11 @@
}
break;
}
- case 2: {
+ case db_x: {
Format(instr, "'memop'cond'b 'rd, ['rn, -'shift_rm]'w");
break;
}
- case 3: {
+ case ib_x: {
if (instr->HasW() && (instr->Bits(6, 4) == 0x5)) {
uint32_t widthminus1 = static_cast<uint32_t>(instr->Bits(20, 16));
uint32_t lsbit = static_cast<uint32_t>(instr->Bits(11, 7));
@@ -969,7 +969,7 @@
uint32_t lsbit = static_cast<uint32_t>(instr->Bits(11, 7));
uint32_t msbit = static_cast<uint32_t>(instr->Bits(20, 16));
if (msbit >= lsbit) {
- if (instr->RmField() == 15) {
+ if (instr->RmValue() == 15) {
Format(instr, "bfc'cond 'rd, 'f");
} else {
Format(instr, "bfi'cond 'rd, 'rm, 'f");
@@ -991,7 +991,7 @@
}
-void Decoder::DecodeType4(Instr* instr) {
+void Decoder::DecodeType4(Instruction* instr) {
ASSERT(instr->Bit(22) == 0); // Privileged mode currently not supported.
if (instr->HasL()) {
Format(instr, "ldm'cond'pu 'rn'w, 'rlist");
@@ -1001,41 +1001,43 @@
}
-void Decoder::DecodeType5(Instr* instr) {
+void Decoder::DecodeType5(Instruction* instr) {
Format(instr, "b'l'cond 'target");
}
-void Decoder::DecodeType6(Instr* instr) {
+void Decoder::DecodeType6(Instruction* instr) {
DecodeType6CoprocessorIns(instr);
}
-int Decoder::DecodeType7(Instr* instr) {
+int Decoder::DecodeType7(Instruction* instr) {
if (instr->Bit(24) == 1) {
- if (instr->SvcField() >= stop) {
+ if (instr->SvcValue() >= kStopCode) {
Format(instr, "stop'cond 'svc");
// Also print the stop message. Its address is encoded
// in the following 4 bytes.
- out_buffer_pos_ +=
- v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "\n %p %08x stop message: %s",
- reinterpret_cast<int32_t*>(instr + Instr::kInstrSize),
- *reinterpret_cast<char**>(instr + Instr::kInstrSize),
- *reinterpret_cast<char**>(instr + Instr::kInstrSize));
- // We have decoded 2 * Instr::kInstrSize bytes.
- return 2 * Instr::kInstrSize;
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "\n %p %08x stop message: %s",
+ reinterpret_cast<int32_t*>(instr
+ + Instruction::kInstrSize),
+ *reinterpret_cast<char**>(instr
+ + Instruction::kInstrSize),
+ *reinterpret_cast<char**>(instr
+ + Instruction::kInstrSize));
+ // We have decoded 2 * Instruction::kInstrSize bytes.
+ return 2 * Instruction::kInstrSize;
} else {
Format(instr, "svc'cond 'svc");
}
} else {
DecodeTypeVFP(instr);
}
- return Instr::kInstrSize;
+ return Instruction::kInstrSize;
}
-// void Decoder::DecodeTypeVFP(Instr* instr)
+// void Decoder::DecodeTypeVFP(Instruction* instr)
// vmov: Sn = Rt
// vmov: Rt = Sn
// vcvt: Dd = Sm
@@ -1048,34 +1050,34 @@
// vmrs
// vmsr
// Dd = vsqrt(Dm)
-void Decoder::DecodeTypeVFP(Instr* instr) {
- ASSERT((instr->TypeField() == 7) && (instr->Bit(24) == 0x0) );
+void Decoder::DecodeTypeVFP(Instruction* instr) {
+ ASSERT((instr->TypeValue() == 7) && (instr->Bit(24) == 0x0) );
ASSERT(instr->Bits(11, 9) == 0x5);
if (instr->Bit(4) == 0) {
- if (instr->Opc1Field() == 0x7) {
+ if (instr->Opc1Value() == 0x7) {
// Other data processing instructions
- if ((instr->Opc2Field() == 0x0) && (instr->Opc3Field() == 0x1)) {
+ if ((instr->Opc2Value() == 0x0) && (instr->Opc3Value() == 0x1)) {
// vmov register to register.
- if (instr->SzField() == 0x1) {
+ if (instr->SzValue() == 0x1) {
Format(instr, "vmov.f64'cond 'Dd, 'Dm");
} else {
Format(instr, "vmov.f32'cond 'Sd, 'Sm");
}
- } else if ((instr->Opc2Field() == 0x7) && (instr->Opc3Field() == 0x3)) {
+ } else if ((instr->Opc2Value() == 0x7) && (instr->Opc3Value() == 0x3)) {
DecodeVCVTBetweenDoubleAndSingle(instr);
- } else if ((instr->Opc2Field() == 0x8) && (instr->Opc3Field() & 0x1)) {
+ } else if ((instr->Opc2Value() == 0x8) && (instr->Opc3Value() & 0x1)) {
DecodeVCVTBetweenFloatingPointAndInteger(instr);
- } else if (((instr->Opc2Field() >> 1) == 0x6) &&
- (instr->Opc3Field() & 0x1)) {
+ } else if (((instr->Opc2Value() >> 1) == 0x6) &&
+ (instr->Opc3Value() & 0x1)) {
DecodeVCVTBetweenFloatingPointAndInteger(instr);
- } else if (((instr->Opc2Field() == 0x4) || (instr->Opc2Field() == 0x5)) &&
- (instr->Opc3Field() & 0x1)) {
+ } else if (((instr->Opc2Value() == 0x4) || (instr->Opc2Value() == 0x5)) &&
+ (instr->Opc3Value() & 0x1)) {
DecodeVCMP(instr);
- } else if (((instr->Opc2Field() == 0x1)) && (instr->Opc3Field() == 0x3)) {
+ } else if (((instr->Opc2Value() == 0x1)) && (instr->Opc3Value() == 0x3)) {
Format(instr, "vsqrt.f64'cond 'Dd, 'Dm");
- } else if (instr->Opc3Field() == 0x0) {
- if (instr->SzField() == 0x1) {
+ } else if (instr->Opc3Value() == 0x0) {
+ if (instr->SzValue() == 0x1) {
Format(instr, "vmov.f64'cond 'Dd, 'd");
} else {
Unknown(instr); // Not used by V8.
@@ -1083,9 +1085,9 @@
} else {
Unknown(instr); // Not used by V8.
}
- } else if (instr->Opc1Field() == 0x3) {
- if (instr->SzField() == 0x1) {
- if (instr->Opc3Field() & 0x1) {
+ } else if (instr->Opc1Value() == 0x3) {
+ if (instr->SzValue() == 0x1) {
+ if (instr->Opc3Value() & 0x1) {
Format(instr, "vsub.f64'cond 'Dd, 'Dn, 'Dm");
} else {
Format(instr, "vadd.f64'cond 'Dd, 'Dn, 'Dm");
@@ -1093,14 +1095,14 @@
} else {
Unknown(instr); // Not used by V8.
}
- } else if ((instr->Opc1Field() == 0x2) && !(instr->Opc3Field() & 0x1)) {
- if (instr->SzField() == 0x1) {
+ } else if ((instr->Opc1Value() == 0x2) && !(instr->Opc3Value() & 0x1)) {
+ if (instr->SzValue() == 0x1) {
Format(instr, "vmul.f64'cond 'Dd, 'Dn, 'Dm");
} else {
Unknown(instr); // Not used by V8.
}
- } else if ((instr->Opc1Field() == 0x4) && !(instr->Opc3Field() & 0x1)) {
- if (instr->SzField() == 0x1) {
+ } else if ((instr->Opc1Value() == 0x4) && !(instr->Opc3Value() & 0x1)) {
+ if (instr->SzValue() == 0x1) {
Format(instr, "vdiv.f64'cond 'Dd, 'Dn, 'Dm");
} else {
Unknown(instr); // Not used by V8.
@@ -1109,13 +1111,13 @@
Unknown(instr); // Not used by V8.
}
} else {
- if ((instr->VCField() == 0x0) &&
- (instr->VAField() == 0x0)) {
+ if ((instr->VCValue() == 0x0) &&
+ (instr->VAValue() == 0x0)) {
DecodeVMOVBetweenCoreAndSinglePrecisionRegisters(instr);
- } else if ((instr->VCField() == 0x0) &&
- (instr->VAField() == 0x7) &&
+ } else if ((instr->VCValue() == 0x0) &&
+ (instr->VAValue() == 0x7) &&
(instr->Bits(19, 16) == 0x1)) {
- if (instr->VLField() == 0) {
+ if (instr->VLValue() == 0) {
if (instr->Bits(15, 12) == 0xF) {
Format(instr, "vmsr'cond FPSCR, APSR");
} else {
@@ -1133,11 +1135,12 @@
}
-void Decoder::DecodeVMOVBetweenCoreAndSinglePrecisionRegisters(Instr* instr) {
- ASSERT((instr->Bit(4) == 1) && (instr->VCField() == 0x0) &&
- (instr->VAField() == 0x0));
+void Decoder::DecodeVMOVBetweenCoreAndSinglePrecisionRegisters(
+ Instruction* instr) {
+ ASSERT((instr->Bit(4) == 1) && (instr->VCValue() == 0x0) &&
+ (instr->VAValue() == 0x0));
- bool to_arm_register = (instr->VLField() == 0x1);
+ bool to_arm_register = (instr->VLValue() == 0x1);
if (to_arm_register) {
Format(instr, "vmov'cond 'rt, 'Sn");
@@ -1147,19 +1150,19 @@
}
-void Decoder::DecodeVCMP(Instr* instr) {
- ASSERT((instr->Bit(4) == 0) && (instr->Opc1Field() == 0x7));
- ASSERT(((instr->Opc2Field() == 0x4) || (instr->Opc2Field() == 0x5)) &&
- (instr->Opc3Field() & 0x1));
+void Decoder::DecodeVCMP(Instruction* instr) {
+ ASSERT((instr->Bit(4) == 0) && (instr->Opc1Value() == 0x7));
+ ASSERT(((instr->Opc2Value() == 0x4) || (instr->Opc2Value() == 0x5)) &&
+ (instr->Opc3Value() & 0x1));
// Comparison.
- bool dp_operation = (instr->SzField() == 1);
+ bool dp_operation = (instr->SzValue() == 1);
bool raise_exception_for_qnan = (instr->Bit(7) == 0x1);
if (dp_operation && !raise_exception_for_qnan) {
- if (instr->Opc2Field() == 0x4) {
+ if (instr->Opc2Value() == 0x4) {
Format(instr, "vcmp.f64'cond 'Dd, 'Dm");
- } else if (instr->Opc2Field() == 0x5) {
+ } else if (instr->Opc2Value() == 0x5) {
Format(instr, "vcmp.f64'cond 'Dd, #0.0");
} else {
Unknown(instr); // invalid
@@ -1170,11 +1173,11 @@
}
-void Decoder::DecodeVCVTBetweenDoubleAndSingle(Instr* instr) {
- ASSERT((instr->Bit(4) == 0) && (instr->Opc1Field() == 0x7));
- ASSERT((instr->Opc2Field() == 0x7) && (instr->Opc3Field() == 0x3));
+void Decoder::DecodeVCVTBetweenDoubleAndSingle(Instruction* instr) {
+ ASSERT((instr->Bit(4) == 0) && (instr->Opc1Value() == 0x7));
+ ASSERT((instr->Opc2Value() == 0x7) && (instr->Opc3Value() == 0x3));
- bool double_to_single = (instr->SzField() == 1);
+ bool double_to_single = (instr->SzValue() == 1);
if (double_to_single) {
Format(instr, "vcvt.f32.f64'cond 'Sd, 'Dm");
@@ -1184,13 +1187,13 @@
}
-void Decoder::DecodeVCVTBetweenFloatingPointAndInteger(Instr* instr) {
- ASSERT((instr->Bit(4) == 0) && (instr->Opc1Field() == 0x7));
- ASSERT(((instr->Opc2Field() == 0x8) && (instr->Opc3Field() & 0x1)) ||
- (((instr->Opc2Field() >> 1) == 0x6) && (instr->Opc3Field() & 0x1)));
+void Decoder::DecodeVCVTBetweenFloatingPointAndInteger(Instruction* instr) {
+ ASSERT((instr->Bit(4) == 0) && (instr->Opc1Value() == 0x7));
+ ASSERT(((instr->Opc2Value() == 0x8) && (instr->Opc3Value() & 0x1)) ||
+ (((instr->Opc2Value() >> 1) == 0x6) && (instr->Opc3Value() & 0x1)));
bool to_integer = (instr->Bit(18) == 1);
- bool dp_operation = (instr->SzField() == 1);
+ bool dp_operation = (instr->SzValue() == 1);
if (to_integer) {
bool unsigned_integer = (instr->Bit(16) == 0);
@@ -1232,11 +1235,11 @@
// <Rt, Rt2> = vmov(Dm)
// Ddst = MEM(Rbase + 4*offset).
// MEM(Rbase + 4*offset) = Dsrc.
-void Decoder::DecodeType6CoprocessorIns(Instr* instr) {
- ASSERT((instr->TypeField() == 6));
+void Decoder::DecodeType6CoprocessorIns(Instruction* instr) {
+ ASSERT(instr->TypeValue() == 6);
- if (instr->CoprocessorField() == 0xA) {
- switch (instr->OpcodeField()) {
+ if (instr->CoprocessorValue() == 0xA) {
+ switch (instr->OpcodeValue()) {
case 0x8:
case 0xA:
if (instr->HasL()) {
@@ -1257,8 +1260,8 @@
Unknown(instr); // Not used by V8.
break;
}
- } else if (instr->CoprocessorField() == 0xB) {
- switch (instr->OpcodeField()) {
+ } else if (instr->CoprocessorValue() == 0xB) {
+ switch (instr->OpcodeValue()) {
case 0x2:
// Load and store double to two GP registers
if (instr->Bits(7, 4) != 0x1) {
@@ -1295,16 +1298,16 @@
// Disassemble the instruction at *instr_ptr into the output buffer.
int Decoder::InstructionDecode(byte* instr_ptr) {
- Instr* instr = Instr::At(instr_ptr);
+ Instruction* instr = Instruction::At(instr_ptr);
// Print raw instruction bytes.
- out_buffer_pos_ += v8i::OS::SNPrintF(out_buffer_ + out_buffer_pos_,
- "%08x ",
- instr->InstructionBits());
- if (instr->ConditionField() == special_condition) {
+ out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,
+ "%08x ",
+ instr->InstructionBits());
+ if (instr->ConditionField() == kSpecialCondition) {
UNIMPLEMENTED();
- return Instr::kInstrSize;
+ return Instruction::kInstrSize;
}
- switch (instr->TypeField()) {
+ switch (instr->TypeValue()) {
case 0:
case 1: {
DecodeType01(instr);
@@ -1339,11 +1342,11 @@
break;
}
}
- return Instr::kInstrSize;
+ return Instruction::kInstrSize;
}
-} } // namespace assembler::arm
+} } // namespace v8::internal
@@ -1351,9 +1354,7 @@
namespace disasm {
-namespace v8i = v8::internal;
-
const char* NameConverter::NameOfAddress(byte* addr) const {
static v8::internal::EmbeddedVector<char, 32> tmp_buffer;
v8::internal::OS::SNPrintF(tmp_buffer, "%p", addr);
@@ -1367,7 +1368,7 @@
const char* NameConverter::NameOfCPURegister(int reg) const {
- return assembler::arm::Registers::Name(reg);
+ return v8::internal::Registers::Name(reg);
}
@@ -1401,7 +1402,7 @@
int Disassembler::InstructionDecode(v8::internal::Vector<char> buffer,
byte* instruction) {
- assembler::arm::Decoder d(converter_, buffer);
+ v8::internal::Decoder d(converter_, buffer);
return d.InstructionDecode(instruction);
}
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