ARMDefines.h revision 4302f85ab6d8737c6b44541ffb006b52010596f4 
1//===-- lldb_ARMDefines.h ---------------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef lldb_ARMDefines_h_
11#define lldb_ARMDefines_h_
12
13#include "InstructionUtils.h"
14
15// Common defintions for the ARM/Thumb Instruction Set Architecture.
16
17namespace lldb_private {
18
19// ARM conditions          // Meaning (integer)         Meaning (floating-point)      Condition flags
20#define COND_EQ     0x0    // Equal                     Equal                         Z == 1
21#define COND_NE     0x1    // Not equal                 Not equal, or unordered       Z == 0
22#define COND_CS     0x2    // Carry set                 >, ==, or unordered           C == 1
23#define COND_HS     0x2
24#define COND_CC     0x3    // Carry clear               Less than                     C == 0
25#define COND_LO     0x3
26#define COND_MI     0x4    // Minus, negative           Less than                     N == 1
27#define COND_PL     0x5    // Plus, positive or zero    >, ==, or unordered           N == 0
28#define COND_VS     0x6    // Overflow                  Unordered                     V == 1
29#define COND_VC     0x7    // No overflow               Not unordered                 V == 0
30#define COND_HI     0x8    // Unsigned higher           Greater than, or unordered    C == 1 and Z == 0
31#define COND_LS     0x9    // Unsigned lower or same    Less than or equal            C == 0 or Z == 1
32#define COND_GE     0xA    // Greater than or equal     Greater than or equal         N == V
33#define COND_LT     0xB    // Less than                 Less than, or unordered       N != V
34#define COND_GT     0xC    // Greater than              Greater than                  Z == 0 and N == V
35#define COND_LE     0xD    // Less than or equal        <, ==, or unordered           Z == 1 or N != V
36#define COND_AL     0xE    // Always (unconditional)    Always (unconditional)        Any
37#define COND_UNCOND 0xF
38
39static inline const char *ARMCondCodeToString(uint32_t CC)
40{
41    switch (CC) {
42    default: assert(0 && "Unknown condition code");
43    case COND_EQ:  return "eq";
44    case COND_NE:  return "ne";
45    case COND_HS:  return "hs";
46    case COND_LO:  return "lo";
47    case COND_MI:  return "mi";
48    case COND_PL:  return "pl";
49    case COND_VS:  return "vs";
50    case COND_VC:  return "vc";
51    case COND_HI:  return "hi";
52    case COND_LS:  return "ls";
53    case COND_GE:  return "ge";
54    case COND_LT:  return "lt";
55    case COND_GT:  return "gt";
56    case COND_LE:  return "le";
57    case COND_AL:  return "al";
58    }
59}
60
61// Masks for CPSR
62#define MASK_CPSR_MODE_MASK     (0x0000001fu)
63#define MASK_CPSR_T         (1u << 5)
64#define MASK_CPSR_F         (1u << 6)
65#define MASK_CPSR_I         (1u << 7)
66#define MASK_CPSR_A         (1u << 8)
67#define MASK_CPSR_E         (1u << 9)
68#define MASK_CPSR_GE_MASK   (0x000f0000u)
69#define MASK_CPSR_J         (1u << 24)
70#define MASK_CPSR_Q         (1u << 27)
71#define MASK_CPSR_V         (1u << 28)
72#define MASK_CPSR_C         (1u << 29)
73#define MASK_CPSR_Z         (1u << 30)
74#define MASK_CPSR_N         (1u << 31)
75
76}   // namespace lldb_private
77
78#endif  // lldb_ARMDefines_h_
79