1                 : /*
       2                 :  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
       3                 :  * Use of this source code is governed by a BSD-style license that can be
       4                 :  * found in the LICENSE file.
       5                 :  */
       6                 : 
       7                 : #include "native_client/src/trusted/validator_arm/model.h"
       8                 : 
       9                 : namespace nacl_arm_dec {
      10                 : 
      11               0 : const char* Register::ToString() const {
      12                 :   static const char* Name[17] = {
      13                 :     "r0",
      14                 :     "r1",
      15                 :     "r2",
      16                 :     "r3",
      17                 :     "r4",
      18                 :     "r5",
      19                 :     "r6",
      20                 :     "r7",
      21                 :     "r8",
      22                 :     "r9",
      23                 :     "r10",
      24                 :     "r11",
      25                 :     "r12",
      26                 :     "sp",
      27                 :     "lr",
      28                 :     "pc",
      29                 :     "APSR.NZCV",
      30                 :   };
      31               0 :   Number n = number();
      32               0 :   return (n < NACL_ARRAY_SIZE(Name)) ? Name[n] : "r?";
      33               0 : }
      34                 : 
      35               0 : const char* Instruction::ToString(Instruction::Condition cond) {
      36                 :   static const char conditions[] =
      37                 :       "eq\0\0ne\0\0cs\0\0cc\0\0mi\0\0pl\0\0vs\0\0vc\0\0"
      38                 :       "hi\0\0ls\0\0ge\0\0lt\0\0gt\0\0le\0\0al";
      39                 :   static const size_t offset_to_null_char = 2;
      40               0 :   size_t offset = static_cast<size_t>(cond) << 2;
      41               0 :   return conditions + ((cond <= AL) ? offset : offset_to_null_char);
      42               0 : }
      43                 : 
      44               0 : Register::Number RegisterList::SmallestGPR() const {
      45               0 :   if (numGPRs() == 0) return Register::kNone;
      46                 :   return static_cast<Register::Number>(
      47               0 :       nacl::CountTrailingZeroes(bits_ & Register::kGprMask));
      48               0 : }
      49                 : 
      50                 : }  // namespace nacl_arm_dec