b7833cb5f1
Review URL: http://codereview.chromium.org/993002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4228 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
// Copyright 2009 the V8 project authors. All rights reserved.
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following
|
|
// disclaimer in the documentation and/or other materials provided
|
|
// with the distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#include "v8.h"
|
|
|
|
#include "constants-arm.h"
|
|
|
|
|
|
namespace assembler {
|
|
namespace arm {
|
|
|
|
namespace v8i = v8::internal;
|
|
|
|
|
|
// These register names are defined in a way to match the native disassembler
|
|
// formatting. See for example the command "objdump -d <binary file>".
|
|
const char* Registers::names_[kNumRegisters] = {
|
|
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
|
|
"r8", "r9", "r10", "fp", "ip", "sp", "lr", "pc",
|
|
};
|
|
|
|
|
|
// List of alias names which can be used when referring to ARM registers.
|
|
const Registers::RegisterAlias Registers::aliases_[] = {
|
|
{10, "sl"},
|
|
{11, "r11"},
|
|
{12, "r12"},
|
|
{13, "r13"},
|
|
{14, "r14"},
|
|
{15, "r15"},
|
|
{kNoRegister, NULL}
|
|
};
|
|
|
|
|
|
const char* Registers::Name(int reg) {
|
|
const char* result;
|
|
if ((0 <= reg) && (reg < kNumRegisters)) {
|
|
result = names_[reg];
|
|
} else {
|
|
result = "noreg";
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
// Support for VFP registers s0 to s31 (d0 to d15).
|
|
// Note that "sN:sM" is the same as "dN/2"
|
|
// These register names are defined in a way to match the native disassembler
|
|
// formatting. See for example the command "objdump -d <binary file>".
|
|
const char* VFPRegisters::names_[kNumVFPRegisters] = {
|
|
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
|
|
"s8", "s9", "s10", "s11", "s12", "s13", "s14", "s15",
|
|
"s16", "s17", "s18", "s19", "s20", "s21", "s22", "s23",
|
|
"s24", "s25", "s26", "s27", "s28", "s29", "s30", "s31",
|
|
"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7",
|
|
"d8", "d9", "d10", "d11", "d12", "d13", "d14", "d15"
|
|
};
|
|
|
|
|
|
const char* VFPRegisters::Name(int reg, bool is_double) {
|
|
ASSERT((0 <= reg) && (reg < kNumVFPRegisters));
|
|
return names_[reg + is_double ? kNumVFPSingleRegisters : 0];
|
|
}
|
|
|
|
|
|
int VFPRegisters::Number(const char* name, bool* is_double) {
|
|
for (int i = 0; i < kNumVFPRegisters; i++) {
|
|
if (strcmp(names_[i], name) == 0) {
|
|
if (i < kNumVFPSingleRegisters) {
|
|
*is_double = false;
|
|
return i;
|
|
} else {
|
|
*is_double = true;
|
|
return i - kNumVFPSingleRegisters;
|
|
}
|
|
}
|
|
}
|
|
|
|
// No register with the requested name found.
|
|
return kNoRegister;
|
|
}
|
|
|
|
|
|
int Registers::Number(const char* name) {
|
|
// Look through the canonical names.
|
|
for (int i = 0; i < kNumRegisters; i++) {
|
|
if (strcmp(names_[i], name) == 0) {
|
|
return i;
|
|
}
|
|
}
|
|
|
|
// Look through the alias names.
|
|
int i = 0;
|
|
while (aliases_[i].reg != kNoRegister) {
|
|
if (strcmp(aliases_[i].name, name) == 0) {
|
|
return aliases_[i].reg;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
// No register with the requested name found.
|
|
return kNoRegister;
|
|
}
|
|
|
|
|
|
} } // namespace assembler::arm
|