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1 | 6af0bf9c | bellard | /*
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2 | 6af0bf9c | bellard | * MIPS32 emulation for qemu: main translation routines.
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3 | 6af0bf9c | bellard | *
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4 | 6af0bf9c | bellard | * Copyright (c) 2004-2005 Jocelyn Mayer
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5 | 6ea83fed | bellard | * Copyright (c) 2006 Marius Groeger (FPU operations)
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6 | 6af0bf9c | bellard | *
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7 | 6af0bf9c | bellard | * This library is free software; you can redistribute it and/or
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8 | 6af0bf9c | bellard | * modify it under the terms of the GNU Lesser General Public
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9 | 6af0bf9c | bellard | * License as published by the Free Software Foundation; either
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10 | 6af0bf9c | bellard | * version 2 of the License, or (at your option) any later version.
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11 | 6af0bf9c | bellard | *
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12 | 6af0bf9c | bellard | * This library is distributed in the hope that it will be useful,
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13 | 6af0bf9c | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | 6af0bf9c | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 | 6af0bf9c | bellard | * Lesser General Public License for more details.
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16 | 6af0bf9c | bellard | *
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17 | 6af0bf9c | bellard | * You should have received a copy of the GNU Lesser General Public
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18 | 6af0bf9c | bellard | * License along with this library; if not, write to the Free Software
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19 | 6af0bf9c | bellard | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 | 6af0bf9c | bellard | */
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21 | 6af0bf9c | bellard | |
22 | 6af0bf9c | bellard | #include <stdarg.h> |
23 | 6af0bf9c | bellard | #include <stdlib.h> |
24 | 6af0bf9c | bellard | #include <stdio.h> |
25 | 6af0bf9c | bellard | #include <string.h> |
26 | 6af0bf9c | bellard | #include <inttypes.h> |
27 | 6af0bf9c | bellard | |
28 | 6af0bf9c | bellard | #include "cpu.h" |
29 | 6af0bf9c | bellard | #include "exec-all.h" |
30 | 6af0bf9c | bellard | #include "disas.h" |
31 | 6af0bf9c | bellard | |
32 | eeef26cd | bellard | //#define MIPS_DEBUG_DISAS
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33 | 6af0bf9c | bellard | //#define MIPS_SINGLE_STEP
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34 | 6af0bf9c | bellard | |
35 | c53be334 | bellard | #ifdef USE_DIRECT_JUMP
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36 | c53be334 | bellard | #define TBPARAM(x)
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37 | c53be334 | bellard | #else
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38 | c53be334 | bellard | #define TBPARAM(x) (long)(x) |
39 | c53be334 | bellard | #endif
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40 | c53be334 | bellard | |
41 | 6af0bf9c | bellard | enum {
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42 | 6af0bf9c | bellard | #define DEF(s, n, copy_size) INDEX_op_ ## s, |
43 | 6af0bf9c | bellard | #include "opc.h" |
44 | 6af0bf9c | bellard | #undef DEF
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45 | 6af0bf9c | bellard | NB_OPS, |
46 | 6af0bf9c | bellard | }; |
47 | 6af0bf9c | bellard | |
48 | 6af0bf9c | bellard | static uint16_t *gen_opc_ptr;
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49 | 6af0bf9c | bellard | static uint32_t *gen_opparam_ptr;
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50 | 6af0bf9c | bellard | |
51 | 6af0bf9c | bellard | #include "gen-op.h" |
52 | 6af0bf9c | bellard | |
53 | e37e863f | bellard | /* MIPS opcodes */
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54 | e37e863f | bellard | #define EXT_SPECIAL 0x100 |
55 | e37e863f | bellard | #define EXT_SPECIAL2 0x200 |
56 | e37e863f | bellard | #define EXT_REGIMM 0x300 |
57 | e37e863f | bellard | #define EXT_CP0 0x400 |
58 | e37e863f | bellard | #define EXT_CP1 0x500 |
59 | e37e863f | bellard | #define EXT_CP2 0x600 |
60 | e37e863f | bellard | #define EXT_CP3 0x700 |
61 | e37e863f | bellard | |
62 | e37e863f | bellard | enum {
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63 | e37e863f | bellard | /* indirect opcode tables */
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64 | e37e863f | bellard | OPC_SPECIAL = 0x00,
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65 | e37e863f | bellard | OPC_BREGIMM = 0x01,
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66 | e37e863f | bellard | OPC_CP0 = 0x10,
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67 | e37e863f | bellard | OPC_CP1 = 0x11,
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68 | e37e863f | bellard | OPC_CP2 = 0x12,
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69 | e37e863f | bellard | OPC_CP3 = 0x13,
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70 | e37e863f | bellard | OPC_SPECIAL2 = 0x1C,
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71 | e37e863f | bellard | /* arithmetic with immediate */
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72 | e37e863f | bellard | OPC_ADDI = 0x08,
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73 | e37e863f | bellard | OPC_ADDIU = 0x09,
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74 | e37e863f | bellard | OPC_SLTI = 0x0A,
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75 | e37e863f | bellard | OPC_SLTIU = 0x0B,
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76 | e37e863f | bellard | OPC_ANDI = 0x0C,
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77 | e37e863f | bellard | OPC_ORI = 0x0D,
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78 | e37e863f | bellard | OPC_XORI = 0x0E,
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79 | e37e863f | bellard | OPC_LUI = 0x0F,
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80 | e37e863f | bellard | /* Jump and branches */
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81 | e37e863f | bellard | OPC_J = 0x02,
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82 | e37e863f | bellard | OPC_JAL = 0x03,
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83 | e37e863f | bellard | OPC_BEQ = 0x04, /* Unconditional if rs = rt = 0 (B) */ |
84 | e37e863f | bellard | OPC_BEQL = 0x14,
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85 | e37e863f | bellard | OPC_BNE = 0x05,
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86 | e37e863f | bellard | OPC_BNEL = 0x15,
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87 | e37e863f | bellard | OPC_BLEZ = 0x06,
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88 | e37e863f | bellard | OPC_BLEZL = 0x16,
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89 | e37e863f | bellard | OPC_BGTZ = 0x07,
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90 | e37e863f | bellard | OPC_BGTZL = 0x17,
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91 | e37e863f | bellard | OPC_JALX = 0x1D, /* MIPS 16 only */ |
92 | e37e863f | bellard | /* Load and stores */
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93 | e37e863f | bellard | OPC_LB = 0x20,
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94 | e37e863f | bellard | OPC_LH = 0x21,
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95 | e37e863f | bellard | OPC_LWL = 0x22,
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96 | e37e863f | bellard | OPC_LW = 0x23,
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97 | e37e863f | bellard | OPC_LBU = 0x24,
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98 | e37e863f | bellard | OPC_LHU = 0x25,
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99 | e37e863f | bellard | OPC_LWR = 0x26,
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100 | d796321b | bellard | OPC_LWU = 0x27,
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101 | e37e863f | bellard | OPC_SB = 0x28,
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102 | e37e863f | bellard | OPC_SH = 0x29,
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103 | e37e863f | bellard | OPC_SWL = 0x2A,
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104 | e37e863f | bellard | OPC_SW = 0x2B,
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105 | e37e863f | bellard | OPC_SWR = 0x2E,
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106 | e37e863f | bellard | OPC_LL = 0x30,
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107 | e37e863f | bellard | OPC_SC = 0x38,
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108 | e37e863f | bellard | /* Floating point load/store */
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109 | e37e863f | bellard | OPC_LWC1 = 0x31,
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110 | e37e863f | bellard | OPC_LWC2 = 0x32,
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111 | e37e863f | bellard | OPC_LDC1 = 0x35,
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112 | e37e863f | bellard | OPC_LDC2 = 0x36,
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113 | e37e863f | bellard | OPC_SWC1 = 0x39,
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114 | e37e863f | bellard | OPC_SWC2 = 0x3A,
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115 | e37e863f | bellard | OPC_SDC1 = 0x3D,
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116 | e37e863f | bellard | OPC_SDC2 = 0x3E,
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117 | e37e863f | bellard | /* Cache and prefetch */
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118 | e37e863f | bellard | OPC_CACHE = 0x2F,
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119 | e37e863f | bellard | OPC_PREF = 0x33,
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120 | e37e863f | bellard | }; |
121 | e37e863f | bellard | |
122 | e37e863f | bellard | /* MIPS special opcodes */
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123 | e37e863f | bellard | enum {
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124 | e37e863f | bellard | /* Shifts */
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125 | e37e863f | bellard | OPC_SLL = 0x00 | EXT_SPECIAL,
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126 | e37e863f | bellard | /* NOP is SLL r0, r0, 0 */
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127 | e37e863f | bellard | /* SSNOP is SLL r0, r0, 1 */
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128 | e37e863f | bellard | OPC_SRL = 0x02 | EXT_SPECIAL,
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129 | e37e863f | bellard | OPC_SRA = 0x03 | EXT_SPECIAL,
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130 | e37e863f | bellard | OPC_SLLV = 0x04 | EXT_SPECIAL,
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131 | e37e863f | bellard | OPC_SRLV = 0x06 | EXT_SPECIAL,
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132 | e37e863f | bellard | OPC_SRAV = 0x07 | EXT_SPECIAL,
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133 | e37e863f | bellard | /* Multiplication / division */
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134 | e37e863f | bellard | OPC_MULT = 0x18 | EXT_SPECIAL,
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135 | e37e863f | bellard | OPC_MULTU = 0x19 | EXT_SPECIAL,
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136 | e37e863f | bellard | OPC_DIV = 0x1A | EXT_SPECIAL,
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137 | e37e863f | bellard | OPC_DIVU = 0x1B | EXT_SPECIAL,
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138 | e37e863f | bellard | /* 2 registers arithmetic / logic */
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139 | e37e863f | bellard | OPC_ADD = 0x20 | EXT_SPECIAL,
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140 | e37e863f | bellard | OPC_ADDU = 0x21 | EXT_SPECIAL,
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141 | e37e863f | bellard | OPC_SUB = 0x22 | EXT_SPECIAL,
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142 | e37e863f | bellard | OPC_SUBU = 0x23 | EXT_SPECIAL,
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143 | e37e863f | bellard | OPC_AND = 0x24 | EXT_SPECIAL,
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144 | e37e863f | bellard | OPC_OR = 0x25 | EXT_SPECIAL,
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145 | e37e863f | bellard | OPC_XOR = 0x26 | EXT_SPECIAL,
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146 | e37e863f | bellard | OPC_NOR = 0x27 | EXT_SPECIAL,
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147 | e37e863f | bellard | OPC_SLT = 0x2A | EXT_SPECIAL,
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148 | e37e863f | bellard | OPC_SLTU = 0x2B | EXT_SPECIAL,
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149 | e37e863f | bellard | /* Jumps */
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150 | e37e863f | bellard | OPC_JR = 0x08 | EXT_SPECIAL,
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151 | e37e863f | bellard | OPC_JALR = 0x09 | EXT_SPECIAL,
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152 | e37e863f | bellard | /* Traps */
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153 | e37e863f | bellard | OPC_TGE = 0x30 | EXT_SPECIAL,
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154 | e37e863f | bellard | OPC_TGEU = 0x31 | EXT_SPECIAL,
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155 | e37e863f | bellard | OPC_TLT = 0x32 | EXT_SPECIAL,
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156 | e37e863f | bellard | OPC_TLTU = 0x33 | EXT_SPECIAL,
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157 | e37e863f | bellard | OPC_TEQ = 0x34 | EXT_SPECIAL,
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158 | e37e863f | bellard | OPC_TNE = 0x36 | EXT_SPECIAL,
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159 | e37e863f | bellard | /* HI / LO registers load & stores */
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160 | e37e863f | bellard | OPC_MFHI = 0x10 | EXT_SPECIAL,
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161 | e37e863f | bellard | OPC_MTHI = 0x11 | EXT_SPECIAL,
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162 | e37e863f | bellard | OPC_MFLO = 0x12 | EXT_SPECIAL,
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163 | e37e863f | bellard | OPC_MTLO = 0x13 | EXT_SPECIAL,
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164 | e37e863f | bellard | /* Conditional moves */
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165 | e37e863f | bellard | OPC_MOVZ = 0x0A | EXT_SPECIAL,
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166 | e37e863f | bellard | OPC_MOVN = 0x0B | EXT_SPECIAL,
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167 | e37e863f | bellard | |
168 | e37e863f | bellard | OPC_MOVCI = 0x01 | EXT_SPECIAL,
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169 | e37e863f | bellard | |
170 | e37e863f | bellard | /* Special */
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171 | e37e863f | bellard | OPC_PMON = 0x05 | EXT_SPECIAL,
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172 | e37e863f | bellard | OPC_SYSCALL = 0x0C | EXT_SPECIAL,
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173 | e37e863f | bellard | OPC_BREAK = 0x0D | EXT_SPECIAL,
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174 | e37e863f | bellard | OPC_SYNC = 0x0F | EXT_SPECIAL,
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175 | e37e863f | bellard | }; |
176 | e37e863f | bellard | |
177 | e37e863f | bellard | enum {
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178 | e37e863f | bellard | /* Mutiply & xxx operations */
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179 | e37e863f | bellard | OPC_MADD = 0x00 | EXT_SPECIAL2,
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180 | e37e863f | bellard | OPC_MADDU = 0x01 | EXT_SPECIAL2,
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181 | e37e863f | bellard | OPC_MUL = 0x02 | EXT_SPECIAL2,
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182 | e37e863f | bellard | OPC_MSUB = 0x04 | EXT_SPECIAL2,
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183 | e37e863f | bellard | OPC_MSUBU = 0x05 | EXT_SPECIAL2,
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184 | e37e863f | bellard | /* Misc */
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185 | e37e863f | bellard | OPC_CLZ = 0x20 | EXT_SPECIAL2,
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186 | e37e863f | bellard | OPC_CLO = 0x21 | EXT_SPECIAL2,
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187 | e37e863f | bellard | /* Special */
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188 | e37e863f | bellard | OPC_SDBBP = 0x3F | EXT_SPECIAL2,
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189 | e37e863f | bellard | }; |
190 | e37e863f | bellard | |
191 | e37e863f | bellard | /* Branch REGIMM */
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192 | e37e863f | bellard | enum {
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193 | e37e863f | bellard | OPC_BLTZ = 0x00 | EXT_REGIMM,
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194 | e37e863f | bellard | OPC_BLTZL = 0x02 | EXT_REGIMM,
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195 | e37e863f | bellard | OPC_BGEZ = 0x01 | EXT_REGIMM,
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196 | e37e863f | bellard | OPC_BGEZL = 0x03 | EXT_REGIMM,
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197 | e37e863f | bellard | OPC_BLTZAL = 0x10 | EXT_REGIMM,
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198 | e37e863f | bellard | OPC_BLTZALL = 0x12 | EXT_REGIMM,
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199 | e37e863f | bellard | OPC_BGEZAL = 0x11 | EXT_REGIMM,
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200 | e37e863f | bellard | OPC_BGEZALL = 0x13 | EXT_REGIMM,
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201 | e37e863f | bellard | OPC_TGEI = 0x08 | EXT_REGIMM,
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202 | e37e863f | bellard | OPC_TGEIU = 0x09 | EXT_REGIMM,
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203 | e37e863f | bellard | OPC_TLTI = 0x0A | EXT_REGIMM,
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204 | e37e863f | bellard | OPC_TLTIU = 0x0B | EXT_REGIMM,
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205 | e37e863f | bellard | OPC_TEQI = 0x0C | EXT_REGIMM,
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206 | e37e863f | bellard | OPC_TNEI = 0x0E | EXT_REGIMM,
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207 | e37e863f | bellard | }; |
208 | e37e863f | bellard | |
209 | e37e863f | bellard | enum {
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210 | e37e863f | bellard | /* Coprocessor 0 (MMU) */
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211 | e37e863f | bellard | OPC_MFC0 = 0x00 | EXT_CP0,
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212 | e37e863f | bellard | OPC_MTC0 = 0x04 | EXT_CP0,
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213 | e37e863f | bellard | OPC_TLBR = 0x01 | EXT_CP0,
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214 | e37e863f | bellard | OPC_TLBWI = 0x02 | EXT_CP0,
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215 | e37e863f | bellard | OPC_TLBWR = 0x06 | EXT_CP0,
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216 | e37e863f | bellard | OPC_TLBP = 0x08 | EXT_CP0,
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217 | e37e863f | bellard | OPC_ERET = 0x18 | EXT_CP0,
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218 | e37e863f | bellard | OPC_DERET = 0x1F | EXT_CP0,
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219 | e37e863f | bellard | OPC_WAIT = 0x20 | EXT_CP0,
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220 | e37e863f | bellard | }; |
221 | e37e863f | bellard | |
222 | 6ea83fed | bellard | #ifdef MIPS_USES_FPU
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223 | 6ea83fed | bellard | enum {
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224 | 6ea83fed | bellard | /* Coprocessor 1 (FPU) */
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225 | 6ea83fed | bellard | OPC_MFC1 = 0x00 | EXT_CP1,
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226 | 6ea83fed | bellard | OPC_MTC1 = 0x04 | EXT_CP1,
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227 | 6ea83fed | bellard | OPC_CFC1 = 0x02 | EXT_CP1,
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228 | 6ea83fed | bellard | OPC_CTC1 = 0x06 | EXT_CP1,
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229 | 6ea83fed | bellard | }; |
230 | 6ea83fed | bellard | #endif
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231 | 6ea83fed | bellard | |
232 | 6af0bf9c | bellard | const unsigned char *regnames[] = |
233 | 6af0bf9c | bellard | { "r0", "at", "v0", "v1", "a0", "a1", "a2", "a3", |
234 | 6af0bf9c | bellard | "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", |
235 | 6af0bf9c | bellard | "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", |
236 | 6af0bf9c | bellard | "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", }; |
237 | 6af0bf9c | bellard | |
238 | 6af0bf9c | bellard | /* Warning: no function for r0 register (hard wired to zero) */
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239 | 6af0bf9c | bellard | #define GEN32(func, NAME) \
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240 | 6af0bf9c | bellard | static GenOpFunc *NAME ## _table [32] = { \ |
241 | 6af0bf9c | bellard | NULL, NAME ## 1, NAME ## 2, NAME ## 3, \ |
242 | 6af0bf9c | bellard | NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
243 | 6af0bf9c | bellard | NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
244 | 6af0bf9c | bellard | NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
245 | 6af0bf9c | bellard | NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
246 | 6af0bf9c | bellard | NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
247 | 6af0bf9c | bellard | NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
248 | 6af0bf9c | bellard | NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ |
249 | 6af0bf9c | bellard | }; \ |
250 | 6af0bf9c | bellard | static inline void func(int n) \ |
251 | 6af0bf9c | bellard | { \ |
252 | 6af0bf9c | bellard | NAME ## _table[n](); \ |
253 | 6af0bf9c | bellard | } |
254 | 6af0bf9c | bellard | |
255 | 6af0bf9c | bellard | /* General purpose registers moves */
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256 | 6af0bf9c | bellard | GEN32(gen_op_load_gpr_T0, gen_op_load_gpr_T0_gpr); |
257 | 6af0bf9c | bellard | GEN32(gen_op_load_gpr_T1, gen_op_load_gpr_T1_gpr); |
258 | 6af0bf9c | bellard | GEN32(gen_op_load_gpr_T2, gen_op_load_gpr_T2_gpr); |
259 | 6af0bf9c | bellard | |
260 | 6af0bf9c | bellard | GEN32(gen_op_store_T0_gpr, gen_op_store_T0_gpr_gpr); |
261 | 6af0bf9c | bellard | GEN32(gen_op_store_T1_gpr, gen_op_store_T1_gpr_gpr); |
262 | 6af0bf9c | bellard | |
263 | 6ea83fed | bellard | #ifdef MIPS_USES_FPU
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264 | 6ea83fed | bellard | const unsigned char *fregnames[] = |
265 | 6ea83fed | bellard | { "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", |
266 | 6ea83fed | bellard | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", |
267 | 6ea83fed | bellard | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", |
268 | 6ea83fed | bellard | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", }; |
269 | 6ea83fed | bellard | |
270 | 6ea83fed | bellard | # define SFGEN32(func, NAME) \
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271 | 6ea83fed | bellard | static GenOpFunc *NAME ## _table [32] = { \ |
272 | 6ea83fed | bellard | NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
273 | 6ea83fed | bellard | NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
274 | 6ea83fed | bellard | NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
275 | 6ea83fed | bellard | NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
276 | 6ea83fed | bellard | NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
277 | 6ea83fed | bellard | NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
278 | 6ea83fed | bellard | NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
279 | 6ea83fed | bellard | NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ |
280 | 6ea83fed | bellard | }; \ |
281 | 6ea83fed | bellard | static inline void func(int n) \ |
282 | 6ea83fed | bellard | { \ |
283 | 6ea83fed | bellard | NAME ## _table[n](); \ |
284 | 6ea83fed | bellard | } |
285 | 6ea83fed | bellard | |
286 | 6ea83fed | bellard | # define DFGEN32(func, NAME) \
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287 | 6ea83fed | bellard | static GenOpFunc *NAME ## _table [32] = { \ |
288 | 6ea83fed | bellard | NAME ## 0, 0, NAME ## 2, 0, \ |
289 | 6ea83fed | bellard | NAME ## 4, 0, NAME ## 6, 0, \ |
290 | 6ea83fed | bellard | NAME ## 8, 0, NAME ## 10, 0, \ |
291 | 6ea83fed | bellard | NAME ## 12, 0, NAME ## 14, 0, \ |
292 | 6ea83fed | bellard | NAME ## 16, 0, NAME ## 18, 0, \ |
293 | 6ea83fed | bellard | NAME ## 20, 0, NAME ## 22, 0, \ |
294 | 6ea83fed | bellard | NAME ## 24, 0, NAME ## 26, 0, \ |
295 | 6ea83fed | bellard | NAME ## 28, 0, NAME ## 30, 0, \ |
296 | 6ea83fed | bellard | }; \ |
297 | 6ea83fed | bellard | static inline void func(int n) \ |
298 | 6ea83fed | bellard | { \ |
299 | 6ea83fed | bellard | NAME ## _table[n](); \ |
300 | 6ea83fed | bellard | } |
301 | 6ea83fed | bellard | |
302 | 6ea83fed | bellard | SFGEN32(gen_op_load_fpr_WT0, gen_op_load_fpr_WT0_fpr); |
303 | 6ea83fed | bellard | SFGEN32(gen_op_store_fpr_WT0, gen_op_store_fpr_WT0_fpr); |
304 | 6ea83fed | bellard | |
305 | 6ea83fed | bellard | SFGEN32(gen_op_load_fpr_WT1, gen_op_load_fpr_WT1_fpr); |
306 | 6ea83fed | bellard | SFGEN32(gen_op_store_fpr_WT1, gen_op_store_fpr_WT1_fpr); |
307 | 6ea83fed | bellard | |
308 | 6ea83fed | bellard | SFGEN32(gen_op_load_fpr_WT2, gen_op_load_fpr_WT2_fpr); |
309 | 6ea83fed | bellard | SFGEN32(gen_op_store_fpr_WT2, gen_op_store_fpr_WT2_fpr); |
310 | 6ea83fed | bellard | |
311 | 6ea83fed | bellard | DFGEN32(gen_op_load_fpr_DT0, gen_op_load_fpr_DT0_fpr); |
312 | 6ea83fed | bellard | DFGEN32(gen_op_store_fpr_DT0, gen_op_store_fpr_DT0_fpr); |
313 | 6ea83fed | bellard | |
314 | 6ea83fed | bellard | DFGEN32(gen_op_load_fpr_DT1, gen_op_load_fpr_DT1_fpr); |
315 | 6ea83fed | bellard | DFGEN32(gen_op_store_fpr_DT1, gen_op_store_fpr_DT1_fpr); |
316 | 6ea83fed | bellard | |
317 | 6ea83fed | bellard | DFGEN32(gen_op_load_fpr_DT2, gen_op_load_fpr_DT2_fpr); |
318 | 6ea83fed | bellard | DFGEN32(gen_op_store_fpr_DT2, gen_op_store_fpr_DT2_fpr); |
319 | 6ea83fed | bellard | |
320 | 6ea83fed | bellard | #define FOP_CONDS(fmt) \
|
321 | 6ea83fed | bellard | static GenOpFunc * cond_ ## fmt ## _table[16] = { \ |
322 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _f, \ |
323 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _un, \ |
324 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _eq, \ |
325 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _ueq, \ |
326 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _olt, \ |
327 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _ult, \ |
328 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _ole, \ |
329 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _ule, \ |
330 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _sf, \ |
331 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _ngle, \ |
332 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _seq, \ |
333 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _ngl, \ |
334 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _lt, \ |
335 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _nge, \ |
336 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _le, \ |
337 | 6ea83fed | bellard | gen_op_cmp_ ## fmt ## _ngt, \ |
338 | 6ea83fed | bellard | }; \ |
339 | 6ea83fed | bellard | static inline void gen_cmp_ ## fmt(int n) \ |
340 | 6ea83fed | bellard | { \ |
341 | 6ea83fed | bellard | cond_ ## fmt ## _table[n](); \ |
342 | 6ea83fed | bellard | } |
343 | 6ea83fed | bellard | |
344 | 6ea83fed | bellard | FOP_CONDS(d) |
345 | 6ea83fed | bellard | FOP_CONDS(s) |
346 | 6ea83fed | bellard | |
347 | 6ea83fed | bellard | #endif
|
348 | 6ea83fed | bellard | |
349 | 6af0bf9c | bellard | typedef struct DisasContext { |
350 | 6af0bf9c | bellard | struct TranslationBlock *tb;
|
351 | 6af0bf9c | bellard | target_ulong pc, saved_pc; |
352 | 6af0bf9c | bellard | uint32_t opcode; |
353 | 6af0bf9c | bellard | /* Routine used to access memory */
|
354 | 6af0bf9c | bellard | int mem_idx;
|
355 | 6af0bf9c | bellard | uint32_t hflags, saved_hflags; |
356 | 6af0bf9c | bellard | uint32_t CP0_Status; |
357 | 6af0bf9c | bellard | int bstate;
|
358 | 6af0bf9c | bellard | target_ulong btarget; |
359 | 6af0bf9c | bellard | } DisasContext; |
360 | 6af0bf9c | bellard | |
361 | 6af0bf9c | bellard | enum {
|
362 | 6af0bf9c | bellard | BS_NONE = 0, /* We go out of the TB without reaching a branch or an |
363 | 6af0bf9c | bellard | * exception condition
|
364 | 6af0bf9c | bellard | */
|
365 | 6af0bf9c | bellard | BS_STOP = 1, /* We want to stop translation for any reason */ |
366 | 6af0bf9c | bellard | BS_BRANCH = 2, /* We reached a branch condition */ |
367 | 6af0bf9c | bellard | BS_EXCP = 3, /* We reached an exception condition */ |
368 | 6af0bf9c | bellard | }; |
369 | 6af0bf9c | bellard | |
370 | 6af0bf9c | bellard | #if defined MIPS_DEBUG_DISAS
|
371 | 6af0bf9c | bellard | #define MIPS_DEBUG(fmt, args...) \
|
372 | 6af0bf9c | bellard | do { \
|
373 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_IN_ASM) { \
|
374 | 6af0bf9c | bellard | fprintf(logfile, "%08x: %08x " fmt "\n", \ |
375 | 6af0bf9c | bellard | ctx->pc, ctx->opcode , ##args); \ |
376 | 6af0bf9c | bellard | } \ |
377 | 6af0bf9c | bellard | } while (0) |
378 | 6af0bf9c | bellard | #else
|
379 | 6af0bf9c | bellard | #define MIPS_DEBUG(fmt, args...) do { } while(0) |
380 | 6af0bf9c | bellard | #endif
|
381 | 6af0bf9c | bellard | |
382 | 6af0bf9c | bellard | #define MIPS_INVAL(op) \
|
383 | 6af0bf9c | bellard | do { \
|
384 | 6af0bf9c | bellard | MIPS_DEBUG("Invalid %s %03x %03x %03x", op, ctx->opcode >> 26, \ |
385 | 6af0bf9c | bellard | ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F)); \ |
386 | 6af0bf9c | bellard | } while (0) |
387 | 6af0bf9c | bellard | |
388 | 6af0bf9c | bellard | #define GEN_LOAD_REG_TN(Tn, Rn) \
|
389 | 6af0bf9c | bellard | do { \
|
390 | 6af0bf9c | bellard | if (Rn == 0) { \ |
391 | 6af0bf9c | bellard | glue(gen_op_reset_, Tn)(); \ |
392 | 6af0bf9c | bellard | } else { \
|
393 | 6af0bf9c | bellard | glue(gen_op_load_gpr_, Tn)(Rn); \ |
394 | 6af0bf9c | bellard | } \ |
395 | 6af0bf9c | bellard | } while (0) |
396 | 6af0bf9c | bellard | |
397 | 6af0bf9c | bellard | #define GEN_LOAD_IMM_TN(Tn, Imm) \
|
398 | 6af0bf9c | bellard | do { \
|
399 | 6af0bf9c | bellard | if (Imm == 0) { \ |
400 | 6af0bf9c | bellard | glue(gen_op_reset_, Tn)(); \ |
401 | 6af0bf9c | bellard | } else { \
|
402 | 6af0bf9c | bellard | glue(gen_op_set_, Tn)(Imm); \ |
403 | 6af0bf9c | bellard | } \ |
404 | 6af0bf9c | bellard | } while (0) |
405 | 6af0bf9c | bellard | |
406 | 6af0bf9c | bellard | #define GEN_STORE_TN_REG(Rn, Tn) \
|
407 | 6af0bf9c | bellard | do { \
|
408 | 6af0bf9c | bellard | if (Rn != 0) { \ |
409 | 6af0bf9c | bellard | glue(glue(gen_op_store_, Tn),_gpr)(Rn); \ |
410 | 6af0bf9c | bellard | } \ |
411 | 6af0bf9c | bellard | } while (0) |
412 | 6af0bf9c | bellard | |
413 | 6ea83fed | bellard | #ifdef MIPS_USES_FPU
|
414 | 6ea83fed | bellard | |
415 | 6ea83fed | bellard | # define GEN_LOAD_FREG_FTN(FTn, Fn) \
|
416 | 6ea83fed | bellard | do { \
|
417 | 6ea83fed | bellard | glue(gen_op_load_fpr_, FTn)(Fn); \ |
418 | 6ea83fed | bellard | } while (0) |
419 | 6ea83fed | bellard | |
420 | 6ea83fed | bellard | #define GEN_STORE_FTN_FREG(Fn, FTn) \
|
421 | 6ea83fed | bellard | do { \
|
422 | 6ea83fed | bellard | glue(gen_op_store_fpr_, FTn)(Fn); \ |
423 | 6ea83fed | bellard | } while (0) |
424 | 6ea83fed | bellard | |
425 | 6ea83fed | bellard | #endif
|
426 | 6ea83fed | bellard | |
427 | 6af0bf9c | bellard | static inline void save_cpu_state (DisasContext *ctx, int do_save_pc) |
428 | 6af0bf9c | bellard | { |
429 | 6af0bf9c | bellard | #if defined MIPS_DEBUG_DISAS
|
430 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_IN_ASM) {
|
431 | 6af0bf9c | bellard | fprintf(logfile, "hflags %08x saved %08x\n",
|
432 | 6af0bf9c | bellard | ctx->hflags, ctx->saved_hflags); |
433 | 6af0bf9c | bellard | } |
434 | 6af0bf9c | bellard | #endif
|
435 | 6af0bf9c | bellard | if (do_save_pc && ctx->pc != ctx->saved_pc) {
|
436 | 6af0bf9c | bellard | gen_op_save_pc(ctx->pc); |
437 | 6af0bf9c | bellard | ctx->saved_pc = ctx->pc; |
438 | 6af0bf9c | bellard | } |
439 | 6af0bf9c | bellard | if (ctx->hflags != ctx->saved_hflags) {
|
440 | 6af0bf9c | bellard | gen_op_save_state(ctx->hflags); |
441 | 6af0bf9c | bellard | ctx->saved_hflags = ctx->hflags; |
442 | 6af0bf9c | bellard | if (ctx->hflags & MIPS_HFLAG_BR) {
|
443 | 6af0bf9c | bellard | gen_op_save_breg_target(); |
444 | 6af0bf9c | bellard | } else if (ctx->hflags & MIPS_HFLAG_B) { |
445 | 6af0bf9c | bellard | gen_op_save_btarget(ctx->btarget); |
446 | 6af0bf9c | bellard | } else if (ctx->hflags & MIPS_HFLAG_BMASK) { |
447 | 6af0bf9c | bellard | gen_op_save_bcond(); |
448 | 6af0bf9c | bellard | gen_op_save_btarget(ctx->btarget); |
449 | 6af0bf9c | bellard | } |
450 | 6af0bf9c | bellard | } |
451 | 6af0bf9c | bellard | } |
452 | 6af0bf9c | bellard | |
453 | 4ad40f36 | bellard | static inline void generate_exception_err (DisasContext *ctx, int excp, int err) |
454 | 6af0bf9c | bellard | { |
455 | 6af0bf9c | bellard | #if defined MIPS_DEBUG_DISAS
|
456 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_IN_ASM)
|
457 | 6af0bf9c | bellard | fprintf(logfile, "%s: raise exception %d\n", __func__, excp);
|
458 | 6af0bf9c | bellard | #endif
|
459 | 6af0bf9c | bellard | save_cpu_state(ctx, 1);
|
460 | 4ad40f36 | bellard | if (err == 0) |
461 | 4ad40f36 | bellard | gen_op_raise_exception(excp); |
462 | 4ad40f36 | bellard | else
|
463 | 4ad40f36 | bellard | gen_op_raise_exception_err(excp, err); |
464 | 6af0bf9c | bellard | ctx->bstate = BS_EXCP; |
465 | 6af0bf9c | bellard | } |
466 | 6af0bf9c | bellard | |
467 | 4ad40f36 | bellard | static inline void generate_exception (DisasContext *ctx, int excp) |
468 | 4ad40f36 | bellard | { |
469 | 4ad40f36 | bellard | generate_exception_err (ctx, excp, 0);
|
470 | 4ad40f36 | bellard | } |
471 | 4ad40f36 | bellard | |
472 | 6af0bf9c | bellard | #if defined(CONFIG_USER_ONLY)
|
473 | 6af0bf9c | bellard | #define op_ldst(name) gen_op_##name##_raw() |
474 | 6af0bf9c | bellard | #define OP_LD_TABLE(width)
|
475 | 6af0bf9c | bellard | #define OP_ST_TABLE(width)
|
476 | 6af0bf9c | bellard | #else
|
477 | 6af0bf9c | bellard | #define op_ldst(name) (*gen_op_##name[ctx->mem_idx])() |
478 | 6af0bf9c | bellard | #define OP_LD_TABLE(width) \
|
479 | 6af0bf9c | bellard | static GenOpFunc *gen_op_l##width[] = { \ |
480 | 6af0bf9c | bellard | &gen_op_l##width##_user, \ |
481 | 6af0bf9c | bellard | &gen_op_l##width##_kernel, \ |
482 | 6af0bf9c | bellard | } |
483 | 6af0bf9c | bellard | #define OP_ST_TABLE(width) \
|
484 | 6af0bf9c | bellard | static GenOpFunc *gen_op_s##width[] = { \ |
485 | 6af0bf9c | bellard | &gen_op_s##width##_user, \ |
486 | 6af0bf9c | bellard | &gen_op_s##width##_kernel, \ |
487 | 6af0bf9c | bellard | } |
488 | 6af0bf9c | bellard | #endif
|
489 | 6af0bf9c | bellard | |
490 | 6af0bf9c | bellard | #ifdef TARGET_MIPS64
|
491 | 6af0bf9c | bellard | OP_LD_TABLE(d); |
492 | 6af0bf9c | bellard | OP_LD_TABLE(dl); |
493 | 6af0bf9c | bellard | OP_LD_TABLE(dr); |
494 | 6af0bf9c | bellard | OP_ST_TABLE(d); |
495 | 6af0bf9c | bellard | OP_ST_TABLE(dl); |
496 | 6af0bf9c | bellard | OP_ST_TABLE(dr); |
497 | 6af0bf9c | bellard | #endif
|
498 | 6af0bf9c | bellard | OP_LD_TABLE(w); |
499 | d796321b | bellard | OP_LD_TABLE(wu); |
500 | 6af0bf9c | bellard | OP_LD_TABLE(wl); |
501 | 6af0bf9c | bellard | OP_LD_TABLE(wr); |
502 | 6af0bf9c | bellard | OP_ST_TABLE(w); |
503 | 6af0bf9c | bellard | OP_ST_TABLE(wl); |
504 | 6af0bf9c | bellard | OP_ST_TABLE(wr); |
505 | 6af0bf9c | bellard | OP_LD_TABLE(h); |
506 | 6af0bf9c | bellard | OP_LD_TABLE(hu); |
507 | 6af0bf9c | bellard | OP_ST_TABLE(h); |
508 | 6af0bf9c | bellard | OP_LD_TABLE(b); |
509 | 6af0bf9c | bellard | OP_LD_TABLE(bu); |
510 | 6af0bf9c | bellard | OP_ST_TABLE(b); |
511 | 6af0bf9c | bellard | OP_LD_TABLE(l); |
512 | 6af0bf9c | bellard | OP_ST_TABLE(c); |
513 | 6ea83fed | bellard | #ifdef MIPS_USES_FPU
|
514 | 6ea83fed | bellard | OP_LD_TABLE(wc1); |
515 | 6ea83fed | bellard | OP_ST_TABLE(wc1); |
516 | 6ea83fed | bellard | OP_LD_TABLE(dc1); |
517 | 6ea83fed | bellard | OP_ST_TABLE(dc1); |
518 | 6ea83fed | bellard | #endif
|
519 | 6af0bf9c | bellard | |
520 | 6af0bf9c | bellard | /* Load and store */
|
521 | 6af0bf9c | bellard | static void gen_ldst (DisasContext *ctx, uint16_t opc, int rt, |
522 | 6af0bf9c | bellard | int base, int16_t offset)
|
523 | 6af0bf9c | bellard | { |
524 | 6af0bf9c | bellard | const unsigned char *opn = "unk"; |
525 | 6af0bf9c | bellard | |
526 | 6af0bf9c | bellard | if (base == 0) { |
527 | 6af0bf9c | bellard | GEN_LOAD_IMM_TN(T0, offset); |
528 | 6af0bf9c | bellard | } else if (offset == 0) { |
529 | 6af0bf9c | bellard | gen_op_load_gpr_T0(base); |
530 | 6af0bf9c | bellard | } else {
|
531 | 6af0bf9c | bellard | gen_op_load_gpr_T0(base); |
532 | 6af0bf9c | bellard | gen_op_set_T1(offset); |
533 | 6af0bf9c | bellard | gen_op_add(); |
534 | 6af0bf9c | bellard | } |
535 | 6af0bf9c | bellard | /* Don't do NOP if destination is zero: we must perform the actual
|
536 | 6af0bf9c | bellard | * memory access
|
537 | 6af0bf9c | bellard | */
|
538 | 6af0bf9c | bellard | switch (opc) {
|
539 | 6af0bf9c | bellard | #if defined(TARGET_MIPS64)
|
540 | 6af0bf9c | bellard | case OPC_LD:
|
541 | 6af0bf9c | bellard | #if defined (MIPS_HAS_UNALIGNED_LS)
|
542 | 6af0bf9c | bellard | case OPC_ULD:
|
543 | 6af0bf9c | bellard | #endif
|
544 | 6af0bf9c | bellard | op_ldst(ld); |
545 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
546 | 6af0bf9c | bellard | opn = "ld";
|
547 | 6af0bf9c | bellard | break;
|
548 | 6af0bf9c | bellard | case OPC_SD:
|
549 | 6af0bf9c | bellard | #if defined (MIPS_HAS_UNALIGNED_LS)
|
550 | 6af0bf9c | bellard | case OPC_USD:
|
551 | 6af0bf9c | bellard | #endif
|
552 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
553 | 6af0bf9c | bellard | op_ldst(sd); |
554 | 6af0bf9c | bellard | opn = "sd";
|
555 | 6af0bf9c | bellard | break;
|
556 | 6af0bf9c | bellard | case OPC_LDL:
|
557 | 6af0bf9c | bellard | op_ldst(ldl); |
558 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
559 | 6af0bf9c | bellard | opn = "ldl";
|
560 | 6af0bf9c | bellard | break;
|
561 | 6af0bf9c | bellard | case OPC_SDL:
|
562 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
563 | 6af0bf9c | bellard | op_ldst(sdl); |
564 | 6af0bf9c | bellard | opn = "sdl";
|
565 | 6af0bf9c | bellard | break;
|
566 | 6af0bf9c | bellard | case OPC_LDR:
|
567 | 6af0bf9c | bellard | op_ldst(ldr); |
568 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
569 | 6af0bf9c | bellard | opn = "ldr";
|
570 | 6af0bf9c | bellard | break;
|
571 | 6af0bf9c | bellard | case OPC_SDR:
|
572 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
573 | 6af0bf9c | bellard | op_ldst(sdr); |
574 | 6af0bf9c | bellard | opn = "sdr";
|
575 | 6af0bf9c | bellard | break;
|
576 | 6af0bf9c | bellard | #endif
|
577 | 6af0bf9c | bellard | case OPC_LW:
|
578 | 6af0bf9c | bellard | #if defined (MIPS_HAS_UNALIGNED_LS)
|
579 | 6af0bf9c | bellard | case OPC_ULW:
|
580 | 6af0bf9c | bellard | #endif
|
581 | 6af0bf9c | bellard | op_ldst(lw); |
582 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
583 | 6af0bf9c | bellard | opn = "lw";
|
584 | 6af0bf9c | bellard | break;
|
585 | d796321b | bellard | case OPC_LWU:
|
586 | d796321b | bellard | op_ldst(lwu); |
587 | d796321b | bellard | GEN_STORE_TN_REG(rt, T0); |
588 | d796321b | bellard | opn = "lwu";
|
589 | d796321b | bellard | break;
|
590 | 6af0bf9c | bellard | case OPC_SW:
|
591 | 6af0bf9c | bellard | #if defined (MIPS_HAS_UNALIGNED_LS)
|
592 | 6af0bf9c | bellard | case OPC_USW:
|
593 | 6af0bf9c | bellard | #endif
|
594 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
595 | 6af0bf9c | bellard | op_ldst(sw); |
596 | 6af0bf9c | bellard | opn = "sw";
|
597 | 6af0bf9c | bellard | break;
|
598 | 6af0bf9c | bellard | case OPC_LH:
|
599 | 6af0bf9c | bellard | #if defined (MIPS_HAS_UNALIGNED_LS)
|
600 | 6af0bf9c | bellard | case OPC_ULH:
|
601 | 6af0bf9c | bellard | #endif
|
602 | 6af0bf9c | bellard | op_ldst(lh); |
603 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
604 | 6af0bf9c | bellard | opn = "lh";
|
605 | 6af0bf9c | bellard | break;
|
606 | 6af0bf9c | bellard | case OPC_SH:
|
607 | 6af0bf9c | bellard | #if defined (MIPS_HAS_UNALIGNED_LS)
|
608 | 6af0bf9c | bellard | case OPC_USH:
|
609 | 6af0bf9c | bellard | #endif
|
610 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
611 | 6af0bf9c | bellard | op_ldst(sh); |
612 | 6af0bf9c | bellard | opn = "sh";
|
613 | 6af0bf9c | bellard | break;
|
614 | 6af0bf9c | bellard | case OPC_LHU:
|
615 | 6af0bf9c | bellard | #if defined (MIPS_HAS_UNALIGNED_LS)
|
616 | 6af0bf9c | bellard | case OPC_ULHU:
|
617 | 6af0bf9c | bellard | #endif
|
618 | 6af0bf9c | bellard | op_ldst(lhu); |
619 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
620 | 6af0bf9c | bellard | opn = "lhu";
|
621 | 6af0bf9c | bellard | break;
|
622 | 6af0bf9c | bellard | case OPC_LB:
|
623 | 6af0bf9c | bellard | op_ldst(lb); |
624 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
625 | 6af0bf9c | bellard | opn = "lb";
|
626 | 6af0bf9c | bellard | break;
|
627 | 6af0bf9c | bellard | case OPC_SB:
|
628 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
629 | 6af0bf9c | bellard | op_ldst(sb); |
630 | 6af0bf9c | bellard | opn = "sb";
|
631 | 6af0bf9c | bellard | break;
|
632 | 6af0bf9c | bellard | case OPC_LBU:
|
633 | 6af0bf9c | bellard | op_ldst(lbu); |
634 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
635 | 6af0bf9c | bellard | opn = "lbu";
|
636 | 6af0bf9c | bellard | break;
|
637 | 6af0bf9c | bellard | case OPC_LWL:
|
638 | 9d1d106a | bellard | GEN_LOAD_REG_TN(T1, rt); |
639 | 6af0bf9c | bellard | op_ldst(lwl); |
640 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
641 | 6af0bf9c | bellard | opn = "lwl";
|
642 | 6af0bf9c | bellard | break;
|
643 | 6af0bf9c | bellard | case OPC_SWL:
|
644 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
645 | 6af0bf9c | bellard | op_ldst(swl); |
646 | 6af0bf9c | bellard | opn = "swr";
|
647 | 6af0bf9c | bellard | break;
|
648 | 6af0bf9c | bellard | case OPC_LWR:
|
649 | 9d1d106a | bellard | GEN_LOAD_REG_TN(T1, rt); |
650 | 6af0bf9c | bellard | op_ldst(lwr); |
651 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
652 | 6af0bf9c | bellard | opn = "lwr";
|
653 | 6af0bf9c | bellard | break;
|
654 | 6af0bf9c | bellard | case OPC_SWR:
|
655 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
656 | 6af0bf9c | bellard | op_ldst(swr); |
657 | 6af0bf9c | bellard | opn = "swr";
|
658 | 6af0bf9c | bellard | break;
|
659 | 6af0bf9c | bellard | case OPC_LL:
|
660 | 6af0bf9c | bellard | op_ldst(ll); |
661 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
662 | 6af0bf9c | bellard | opn = "ll";
|
663 | 6af0bf9c | bellard | break;
|
664 | 6af0bf9c | bellard | case OPC_SC:
|
665 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
666 | 6af0bf9c | bellard | op_ldst(sc); |
667 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
668 | 6af0bf9c | bellard | opn = "sc";
|
669 | 6af0bf9c | bellard | break;
|
670 | 6af0bf9c | bellard | default:
|
671 | 6af0bf9c | bellard | MIPS_INVAL("load/store");
|
672 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
673 | 6af0bf9c | bellard | return;
|
674 | 6af0bf9c | bellard | } |
675 | 6af0bf9c | bellard | MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
|
676 | 6af0bf9c | bellard | } |
677 | 6af0bf9c | bellard | |
678 | 6ea83fed | bellard | #ifdef MIPS_USES_FPU
|
679 | 6ea83fed | bellard | |
680 | 6ea83fed | bellard | /* Load and store */
|
681 | 6ea83fed | bellard | static void gen_flt_ldst (DisasContext *ctx, uint16_t opc, int ft, |
682 | 6ea83fed | bellard | int base, int16_t offset)
|
683 | 6ea83fed | bellard | { |
684 | 6ea83fed | bellard | const unsigned char *opn = "unk"; |
685 | 6ea83fed | bellard | |
686 | 6ea83fed | bellard | if (base == 0) { |
687 | 6ea83fed | bellard | GEN_LOAD_IMM_TN(T0, offset); |
688 | 6ea83fed | bellard | } else if (offset == 0) { |
689 | 6ea83fed | bellard | gen_op_load_gpr_T0(base); |
690 | 6ea83fed | bellard | } else {
|
691 | 6ea83fed | bellard | gen_op_load_gpr_T0(base); |
692 | 6ea83fed | bellard | gen_op_set_T1(offset); |
693 | 6ea83fed | bellard | gen_op_add(); |
694 | 6ea83fed | bellard | } |
695 | 6ea83fed | bellard | /* Don't do NOP if destination is zero: we must perform the actual
|
696 | 6ea83fed | bellard | * memory access
|
697 | 6ea83fed | bellard | */
|
698 | 6ea83fed | bellard | switch (opc) {
|
699 | 6ea83fed | bellard | case OPC_LWC1:
|
700 | 6ea83fed | bellard | op_ldst(lwc1); |
701 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(ft, WT0); |
702 | 6ea83fed | bellard | opn = "lwc1";
|
703 | 6ea83fed | bellard | break;
|
704 | 6ea83fed | bellard | case OPC_SWC1:
|
705 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, ft); |
706 | 6ea83fed | bellard | op_ldst(swc1); |
707 | 6ea83fed | bellard | opn = "swc1";
|
708 | 6ea83fed | bellard | break;
|
709 | 6ea83fed | bellard | case OPC_LDC1:
|
710 | 6ea83fed | bellard | op_ldst(ldc1); |
711 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(ft, DT0); |
712 | 6ea83fed | bellard | opn = "ldc1";
|
713 | 6ea83fed | bellard | break;
|
714 | 6ea83fed | bellard | case OPC_SDC1:
|
715 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, ft); |
716 | 6ea83fed | bellard | op_ldst(sdc1); |
717 | 6ea83fed | bellard | opn = "sdc1";
|
718 | 6ea83fed | bellard | break;
|
719 | 6ea83fed | bellard | default:
|
720 | 6ea83fed | bellard | MIPS_INVAL("float load/store");
|
721 | 6ea83fed | bellard | generate_exception(ctx, EXCP_CpU); |
722 | 6ea83fed | bellard | return;
|
723 | 6ea83fed | bellard | } |
724 | 6ea83fed | bellard | MIPS_DEBUG("%s %s, %d(%s)", opn, fregnames[ft], offset, regnames[base]);
|
725 | 6ea83fed | bellard | } |
726 | 6ea83fed | bellard | #endif
|
727 | 6ea83fed | bellard | |
728 | 6af0bf9c | bellard | /* Arithmetic with immediate operand */
|
729 | 6af0bf9c | bellard | static void gen_arith_imm (DisasContext *ctx, uint16_t opc, int rt, |
730 | 6af0bf9c | bellard | int rs, int16_t imm)
|
731 | 6af0bf9c | bellard | { |
732 | 6af0bf9c | bellard | uint32_t uimm; |
733 | 6af0bf9c | bellard | const unsigned char *opn = "unk"; |
734 | 6af0bf9c | bellard | |
735 | 6af0bf9c | bellard | if (rt == 0 && opc != OPC_ADDI) { |
736 | 6af0bf9c | bellard | /* if no destination, treat it as a NOP
|
737 | 6af0bf9c | bellard | * For addi, we must generate the overflow exception when needed.
|
738 | 6af0bf9c | bellard | */
|
739 | 6af0bf9c | bellard | MIPS_DEBUG("NOP");
|
740 | 6af0bf9c | bellard | return;
|
741 | 6af0bf9c | bellard | } |
742 | 6af0bf9c | bellard | if (opc == OPC_ADDI || opc == OPC_ADDIU ||
|
743 | 6af0bf9c | bellard | opc == OPC_SLTI || opc == OPC_SLTIU) |
744 | 6af0bf9c | bellard | uimm = (int32_t)imm; /* Sign extent to 32 bits */
|
745 | 6af0bf9c | bellard | else
|
746 | 6af0bf9c | bellard | uimm = (uint16_t)imm; |
747 | 6af0bf9c | bellard | if (opc != OPC_LUI) {
|
748 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, rs); |
749 | 6af0bf9c | bellard | GEN_LOAD_IMM_TN(T1, uimm); |
750 | 6af0bf9c | bellard | } else {
|
751 | 6af0bf9c | bellard | uimm = uimm << 16;
|
752 | 6af0bf9c | bellard | GEN_LOAD_IMM_TN(T0, uimm); |
753 | 6af0bf9c | bellard | } |
754 | 6af0bf9c | bellard | switch (opc) {
|
755 | 6af0bf9c | bellard | case OPC_ADDI:
|
756 | 6af0bf9c | bellard | save_cpu_state(ctx, 1);
|
757 | 6af0bf9c | bellard | gen_op_addo(); |
758 | 6af0bf9c | bellard | opn = "addi";
|
759 | 6af0bf9c | bellard | break;
|
760 | 6af0bf9c | bellard | case OPC_ADDIU:
|
761 | 6af0bf9c | bellard | gen_op_add(); |
762 | 6af0bf9c | bellard | opn = "addiu";
|
763 | 6af0bf9c | bellard | break;
|
764 | 6af0bf9c | bellard | case OPC_SLTI:
|
765 | 6af0bf9c | bellard | gen_op_lt(); |
766 | 6af0bf9c | bellard | opn = "slti";
|
767 | 6af0bf9c | bellard | break;
|
768 | 6af0bf9c | bellard | case OPC_SLTIU:
|
769 | 6af0bf9c | bellard | gen_op_ltu(); |
770 | 6af0bf9c | bellard | opn = "sltiu";
|
771 | 6af0bf9c | bellard | break;
|
772 | 6af0bf9c | bellard | case OPC_ANDI:
|
773 | 6af0bf9c | bellard | gen_op_and(); |
774 | 6af0bf9c | bellard | opn = "andi";
|
775 | 6af0bf9c | bellard | break;
|
776 | 6af0bf9c | bellard | case OPC_ORI:
|
777 | 6af0bf9c | bellard | gen_op_or(); |
778 | 6af0bf9c | bellard | opn = "ori";
|
779 | 6af0bf9c | bellard | break;
|
780 | 6af0bf9c | bellard | case OPC_XORI:
|
781 | 6af0bf9c | bellard | gen_op_xor(); |
782 | 6af0bf9c | bellard | opn = "xori";
|
783 | 6af0bf9c | bellard | break;
|
784 | 6af0bf9c | bellard | case OPC_LUI:
|
785 | 6af0bf9c | bellard | opn = "lui";
|
786 | 6af0bf9c | bellard | break;
|
787 | 6af0bf9c | bellard | case OPC_SLL:
|
788 | 6af0bf9c | bellard | gen_op_sll(); |
789 | 6af0bf9c | bellard | opn = "sll";
|
790 | 6af0bf9c | bellard | break;
|
791 | 6af0bf9c | bellard | case OPC_SRA:
|
792 | 6af0bf9c | bellard | gen_op_sra(); |
793 | 6af0bf9c | bellard | opn = "sra";
|
794 | 6af0bf9c | bellard | break;
|
795 | 6af0bf9c | bellard | case OPC_SRL:
|
796 | 6af0bf9c | bellard | gen_op_srl(); |
797 | 6af0bf9c | bellard | opn = "srl";
|
798 | 6af0bf9c | bellard | break;
|
799 | 6af0bf9c | bellard | default:
|
800 | 6af0bf9c | bellard | MIPS_INVAL("imm arith");
|
801 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
802 | 6af0bf9c | bellard | return;
|
803 | 6af0bf9c | bellard | } |
804 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rt, T0); |
805 | 6af0bf9c | bellard | MIPS_DEBUG("%s %s, %s, %x", opn, regnames[rt], regnames[rs], uimm);
|
806 | 6af0bf9c | bellard | } |
807 | 6af0bf9c | bellard | |
808 | 6af0bf9c | bellard | /* Arithmetic */
|
809 | 6af0bf9c | bellard | static void gen_arith (DisasContext *ctx, uint16_t opc, |
810 | 6af0bf9c | bellard | int rd, int rs, int rt) |
811 | 6af0bf9c | bellard | { |
812 | 6af0bf9c | bellard | const unsigned char *opn = "unk"; |
813 | 6af0bf9c | bellard | |
814 | 6af0bf9c | bellard | if (rd == 0 && opc != OPC_ADD && opc != OPC_SUB) { |
815 | 6af0bf9c | bellard | /* if no destination, treat it as a NOP
|
816 | 6af0bf9c | bellard | * For add & sub, we must generate the overflow exception when needed.
|
817 | 6af0bf9c | bellard | */
|
818 | 6af0bf9c | bellard | MIPS_DEBUG("NOP");
|
819 | 6af0bf9c | bellard | return;
|
820 | 6af0bf9c | bellard | } |
821 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, rs); |
822 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
823 | 6af0bf9c | bellard | switch (opc) {
|
824 | 6af0bf9c | bellard | case OPC_ADD:
|
825 | 6af0bf9c | bellard | save_cpu_state(ctx, 1);
|
826 | 6af0bf9c | bellard | gen_op_addo(); |
827 | 6af0bf9c | bellard | opn = "add";
|
828 | 6af0bf9c | bellard | break;
|
829 | 6af0bf9c | bellard | case OPC_ADDU:
|
830 | 6af0bf9c | bellard | gen_op_add(); |
831 | 6af0bf9c | bellard | opn = "addu";
|
832 | 6af0bf9c | bellard | break;
|
833 | 6af0bf9c | bellard | case OPC_SUB:
|
834 | 6af0bf9c | bellard | save_cpu_state(ctx, 1);
|
835 | 6af0bf9c | bellard | gen_op_subo(); |
836 | 6af0bf9c | bellard | opn = "sub";
|
837 | 6af0bf9c | bellard | break;
|
838 | 6af0bf9c | bellard | case OPC_SUBU:
|
839 | 6af0bf9c | bellard | gen_op_sub(); |
840 | 6af0bf9c | bellard | opn = "subu";
|
841 | 6af0bf9c | bellard | break;
|
842 | 6af0bf9c | bellard | case OPC_SLT:
|
843 | 6af0bf9c | bellard | gen_op_lt(); |
844 | 6af0bf9c | bellard | opn = "slt";
|
845 | 6af0bf9c | bellard | break;
|
846 | 6af0bf9c | bellard | case OPC_SLTU:
|
847 | 6af0bf9c | bellard | gen_op_ltu(); |
848 | 6af0bf9c | bellard | opn = "sltu";
|
849 | 6af0bf9c | bellard | break;
|
850 | 6af0bf9c | bellard | case OPC_AND:
|
851 | 6af0bf9c | bellard | gen_op_and(); |
852 | 6af0bf9c | bellard | opn = "and";
|
853 | 6af0bf9c | bellard | break;
|
854 | 6af0bf9c | bellard | case OPC_NOR:
|
855 | 6af0bf9c | bellard | gen_op_nor(); |
856 | 6af0bf9c | bellard | opn = "nor";
|
857 | 6af0bf9c | bellard | break;
|
858 | 6af0bf9c | bellard | case OPC_OR:
|
859 | 6af0bf9c | bellard | gen_op_or(); |
860 | 6af0bf9c | bellard | opn = "or";
|
861 | 6af0bf9c | bellard | break;
|
862 | 6af0bf9c | bellard | case OPC_XOR:
|
863 | 6af0bf9c | bellard | gen_op_xor(); |
864 | 6af0bf9c | bellard | opn = "xor";
|
865 | 6af0bf9c | bellard | break;
|
866 | 6af0bf9c | bellard | case OPC_MUL:
|
867 | 6af0bf9c | bellard | gen_op_mul(); |
868 | 6af0bf9c | bellard | opn = "mul";
|
869 | 6af0bf9c | bellard | break;
|
870 | 6af0bf9c | bellard | case OPC_MOVN:
|
871 | 6af0bf9c | bellard | gen_op_movn(rd); |
872 | 6af0bf9c | bellard | opn = "movn";
|
873 | 6af0bf9c | bellard | goto print;
|
874 | 6af0bf9c | bellard | case OPC_MOVZ:
|
875 | 6af0bf9c | bellard | gen_op_movz(rd); |
876 | 6af0bf9c | bellard | opn = "movz";
|
877 | 6af0bf9c | bellard | goto print;
|
878 | 6af0bf9c | bellard | case OPC_SLLV:
|
879 | 6af0bf9c | bellard | gen_op_sllv(); |
880 | 6af0bf9c | bellard | opn = "sllv";
|
881 | 6af0bf9c | bellard | break;
|
882 | 6af0bf9c | bellard | case OPC_SRAV:
|
883 | 6af0bf9c | bellard | gen_op_srav(); |
884 | 6af0bf9c | bellard | opn = "srav";
|
885 | 6af0bf9c | bellard | break;
|
886 | 6af0bf9c | bellard | case OPC_SRLV:
|
887 | 6af0bf9c | bellard | gen_op_srlv(); |
888 | 6af0bf9c | bellard | opn = "srlv";
|
889 | 6af0bf9c | bellard | break;
|
890 | 6af0bf9c | bellard | default:
|
891 | 6af0bf9c | bellard | MIPS_INVAL("arith");
|
892 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
893 | 6af0bf9c | bellard | return;
|
894 | 6af0bf9c | bellard | } |
895 | 6af0bf9c | bellard | GEN_STORE_TN_REG(rd, T0); |
896 | 6af0bf9c | bellard | print:
|
897 | 6af0bf9c | bellard | MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
|
898 | 6af0bf9c | bellard | } |
899 | 6af0bf9c | bellard | |
900 | 6af0bf9c | bellard | /* Arithmetic on HI/LO registers */
|
901 | 6af0bf9c | bellard | static void gen_HILO (DisasContext *ctx, uint16_t opc, int reg) |
902 | 6af0bf9c | bellard | { |
903 | 6af0bf9c | bellard | const unsigned char *opn = "unk"; |
904 | 6af0bf9c | bellard | |
905 | 6af0bf9c | bellard | if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) { |
906 | 6af0bf9c | bellard | /* Treat as a NOP */
|
907 | 6af0bf9c | bellard | MIPS_DEBUG("NOP");
|
908 | 6af0bf9c | bellard | return;
|
909 | 6af0bf9c | bellard | } |
910 | 6af0bf9c | bellard | switch (opc) {
|
911 | 6af0bf9c | bellard | case OPC_MFHI:
|
912 | 6af0bf9c | bellard | gen_op_load_HI(); |
913 | 6af0bf9c | bellard | GEN_STORE_TN_REG(reg, T0); |
914 | 6af0bf9c | bellard | opn = "mfhi";
|
915 | 6af0bf9c | bellard | break;
|
916 | 6af0bf9c | bellard | case OPC_MFLO:
|
917 | 6af0bf9c | bellard | gen_op_load_LO(); |
918 | 6af0bf9c | bellard | GEN_STORE_TN_REG(reg, T0); |
919 | 6af0bf9c | bellard | opn = "mflo";
|
920 | 6af0bf9c | bellard | break;
|
921 | 6af0bf9c | bellard | case OPC_MTHI:
|
922 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, reg); |
923 | 6af0bf9c | bellard | gen_op_store_HI(); |
924 | 6af0bf9c | bellard | opn = "mthi";
|
925 | 6af0bf9c | bellard | break;
|
926 | 6af0bf9c | bellard | case OPC_MTLO:
|
927 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, reg); |
928 | 6af0bf9c | bellard | gen_op_store_LO(); |
929 | 6af0bf9c | bellard | opn = "mtlo";
|
930 | 6af0bf9c | bellard | break;
|
931 | 6af0bf9c | bellard | default:
|
932 | 6af0bf9c | bellard | MIPS_INVAL("HILO");
|
933 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
934 | 6af0bf9c | bellard | return;
|
935 | 6af0bf9c | bellard | } |
936 | 6af0bf9c | bellard | MIPS_DEBUG("%s %s", opn, regnames[reg]);
|
937 | 6af0bf9c | bellard | } |
938 | 6af0bf9c | bellard | |
939 | 6af0bf9c | bellard | static void gen_muldiv (DisasContext *ctx, uint16_t opc, |
940 | 6af0bf9c | bellard | int rs, int rt) |
941 | 6af0bf9c | bellard | { |
942 | 6af0bf9c | bellard | const unsigned char *opn = "unk"; |
943 | 6af0bf9c | bellard | |
944 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, rs); |
945 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
946 | 6af0bf9c | bellard | switch (opc) {
|
947 | 6af0bf9c | bellard | case OPC_DIV:
|
948 | 6af0bf9c | bellard | gen_op_div(); |
949 | 6af0bf9c | bellard | opn = "div";
|
950 | 6af0bf9c | bellard | break;
|
951 | 6af0bf9c | bellard | case OPC_DIVU:
|
952 | 6af0bf9c | bellard | gen_op_divu(); |
953 | 6af0bf9c | bellard | opn = "divu";
|
954 | 6af0bf9c | bellard | break;
|
955 | 6af0bf9c | bellard | case OPC_MULT:
|
956 | 6af0bf9c | bellard | gen_op_mult(); |
957 | 6af0bf9c | bellard | opn = "mult";
|
958 | 6af0bf9c | bellard | break;
|
959 | 6af0bf9c | bellard | case OPC_MULTU:
|
960 | 6af0bf9c | bellard | gen_op_multu(); |
961 | 6af0bf9c | bellard | opn = "multu";
|
962 | 6af0bf9c | bellard | break;
|
963 | 6af0bf9c | bellard | case OPC_MADD:
|
964 | 6af0bf9c | bellard | gen_op_madd(); |
965 | 6af0bf9c | bellard | opn = "madd";
|
966 | 6af0bf9c | bellard | break;
|
967 | 6af0bf9c | bellard | case OPC_MADDU:
|
968 | 6af0bf9c | bellard | gen_op_maddu(); |
969 | 6af0bf9c | bellard | opn = "maddu";
|
970 | 6af0bf9c | bellard | break;
|
971 | 6af0bf9c | bellard | case OPC_MSUB:
|
972 | 6af0bf9c | bellard | gen_op_msub(); |
973 | 6af0bf9c | bellard | opn = "msub";
|
974 | 6af0bf9c | bellard | break;
|
975 | 6af0bf9c | bellard | case OPC_MSUBU:
|
976 | 6af0bf9c | bellard | gen_op_msubu(); |
977 | 6af0bf9c | bellard | opn = "msubu";
|
978 | 6af0bf9c | bellard | break;
|
979 | 6af0bf9c | bellard | default:
|
980 | 6af0bf9c | bellard | MIPS_INVAL("mul/div");
|
981 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
982 | 6af0bf9c | bellard | return;
|
983 | 6af0bf9c | bellard | } |
984 | 6af0bf9c | bellard | MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]);
|
985 | 6af0bf9c | bellard | } |
986 | 6af0bf9c | bellard | |
987 | 6af0bf9c | bellard | static void gen_cl (DisasContext *ctx, uint16_t opc, |
988 | 6af0bf9c | bellard | int rd, int rs) |
989 | 6af0bf9c | bellard | { |
990 | 6af0bf9c | bellard | const unsigned char *opn = "unk"; |
991 | 6af0bf9c | bellard | if (rd == 0) { |
992 | 6af0bf9c | bellard | /* Treat as a NOP */
|
993 | 6af0bf9c | bellard | MIPS_DEBUG("NOP");
|
994 | 6af0bf9c | bellard | return;
|
995 | 6af0bf9c | bellard | } |
996 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, rs); |
997 | 6af0bf9c | bellard | switch (opc) {
|
998 | 6af0bf9c | bellard | case OPC_CLO:
|
999 | 6af0bf9c | bellard | /* CLO */
|
1000 | 6af0bf9c | bellard | gen_op_clo(); |
1001 | 6af0bf9c | bellard | opn = "clo";
|
1002 | 6af0bf9c | bellard | break;
|
1003 | 6af0bf9c | bellard | case OPC_CLZ:
|
1004 | 6af0bf9c | bellard | /* CLZ */
|
1005 | 6af0bf9c | bellard | gen_op_clz(); |
1006 | 6af0bf9c | bellard | opn = "clz";
|
1007 | 6af0bf9c | bellard | break;
|
1008 | 6af0bf9c | bellard | default:
|
1009 | 6af0bf9c | bellard | MIPS_INVAL("CLx");
|
1010 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
1011 | 6af0bf9c | bellard | return;
|
1012 | 6af0bf9c | bellard | } |
1013 | 6af0bf9c | bellard | gen_op_store_T0_gpr(rd); |
1014 | 6af0bf9c | bellard | MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
|
1015 | 6af0bf9c | bellard | } |
1016 | 6af0bf9c | bellard | |
1017 | 6af0bf9c | bellard | /* Traps */
|
1018 | 6af0bf9c | bellard | static void gen_trap (DisasContext *ctx, uint16_t opc, |
1019 | 6af0bf9c | bellard | int rs, int rt, int16_t imm) |
1020 | 6af0bf9c | bellard | { |
1021 | 6af0bf9c | bellard | int cond;
|
1022 | 6af0bf9c | bellard | |
1023 | 6af0bf9c | bellard | cond = 0;
|
1024 | 6af0bf9c | bellard | /* Load needed operands */
|
1025 | 6af0bf9c | bellard | switch (opc) {
|
1026 | 6af0bf9c | bellard | case OPC_TEQ:
|
1027 | 6af0bf9c | bellard | case OPC_TGE:
|
1028 | 6af0bf9c | bellard | case OPC_TGEU:
|
1029 | 6af0bf9c | bellard | case OPC_TLT:
|
1030 | 6af0bf9c | bellard | case OPC_TLTU:
|
1031 | 6af0bf9c | bellard | case OPC_TNE:
|
1032 | 6af0bf9c | bellard | /* Compare two registers */
|
1033 | 6af0bf9c | bellard | if (rs != rt) {
|
1034 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, rs); |
1035 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
1036 | 6af0bf9c | bellard | cond = 1;
|
1037 | 6af0bf9c | bellard | } |
1038 | 6af0bf9c | bellard | case OPC_TEQI:
|
1039 | 6af0bf9c | bellard | case OPC_TGEI:
|
1040 | 6af0bf9c | bellard | case OPC_TGEIU:
|
1041 | 6af0bf9c | bellard | case OPC_TLTI:
|
1042 | 6af0bf9c | bellard | case OPC_TLTIU:
|
1043 | 6af0bf9c | bellard | case OPC_TNEI:
|
1044 | 6af0bf9c | bellard | /* Compare register to immediate */
|
1045 | 6af0bf9c | bellard | if (rs != 0 || imm != 0) { |
1046 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, rs); |
1047 | 6af0bf9c | bellard | GEN_LOAD_IMM_TN(T1, (int32_t)imm); |
1048 | 6af0bf9c | bellard | cond = 1;
|
1049 | 6af0bf9c | bellard | } |
1050 | 6af0bf9c | bellard | break;
|
1051 | 6af0bf9c | bellard | } |
1052 | 6af0bf9c | bellard | if (cond == 0) { |
1053 | 6af0bf9c | bellard | switch (opc) {
|
1054 | 6af0bf9c | bellard | case OPC_TEQ: /* rs == rs */ |
1055 | 6af0bf9c | bellard | case OPC_TEQI: /* r0 == 0 */ |
1056 | 6af0bf9c | bellard | case OPC_TGE: /* rs >= rs */ |
1057 | 6af0bf9c | bellard | case OPC_TGEI: /* r0 >= 0 */ |
1058 | 6af0bf9c | bellard | case OPC_TGEU: /* rs >= rs unsigned */ |
1059 | 6af0bf9c | bellard | case OPC_TGEIU: /* r0 >= 0 unsigned */ |
1060 | 6af0bf9c | bellard | /* Always trap */
|
1061 | 6af0bf9c | bellard | gen_op_set_T0(1);
|
1062 | 6af0bf9c | bellard | break;
|
1063 | 6af0bf9c | bellard | case OPC_TLT: /* rs < rs */ |
1064 | 6af0bf9c | bellard | case OPC_TLTI: /* r0 < 0 */ |
1065 | 6af0bf9c | bellard | case OPC_TLTU: /* rs < rs unsigned */ |
1066 | 6af0bf9c | bellard | case OPC_TLTIU: /* r0 < 0 unsigned */ |
1067 | 6af0bf9c | bellard | case OPC_TNE: /* rs != rs */ |
1068 | 6af0bf9c | bellard | case OPC_TNEI: /* r0 != 0 */ |
1069 | 6af0bf9c | bellard | /* Never trap: treat as NOP */
|
1070 | 6af0bf9c | bellard | return;
|
1071 | 6af0bf9c | bellard | default:
|
1072 | 6af0bf9c | bellard | MIPS_INVAL("TRAP");
|
1073 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
1074 | 6af0bf9c | bellard | return;
|
1075 | 6af0bf9c | bellard | } |
1076 | 6af0bf9c | bellard | } else {
|
1077 | 6af0bf9c | bellard | switch (opc) {
|
1078 | 6af0bf9c | bellard | case OPC_TEQ:
|
1079 | 6af0bf9c | bellard | case OPC_TEQI:
|
1080 | 6af0bf9c | bellard | gen_op_eq(); |
1081 | 6af0bf9c | bellard | break;
|
1082 | 6af0bf9c | bellard | case OPC_TGE:
|
1083 | 6af0bf9c | bellard | case OPC_TGEI:
|
1084 | 6af0bf9c | bellard | gen_op_ge(); |
1085 | 6af0bf9c | bellard | break;
|
1086 | 6af0bf9c | bellard | case OPC_TGEU:
|
1087 | 6af0bf9c | bellard | case OPC_TGEIU:
|
1088 | 6af0bf9c | bellard | gen_op_geu(); |
1089 | 6af0bf9c | bellard | break;
|
1090 | 6af0bf9c | bellard | case OPC_TLT:
|
1091 | 6af0bf9c | bellard | case OPC_TLTI:
|
1092 | 6af0bf9c | bellard | gen_op_lt(); |
1093 | 6af0bf9c | bellard | break;
|
1094 | 6af0bf9c | bellard | case OPC_TLTU:
|
1095 | 6af0bf9c | bellard | case OPC_TLTIU:
|
1096 | 6af0bf9c | bellard | gen_op_ltu(); |
1097 | 6af0bf9c | bellard | break;
|
1098 | 6af0bf9c | bellard | case OPC_TNE:
|
1099 | 6af0bf9c | bellard | case OPC_TNEI:
|
1100 | 6af0bf9c | bellard | gen_op_ne(); |
1101 | 6af0bf9c | bellard | break;
|
1102 | 6af0bf9c | bellard | default:
|
1103 | 6af0bf9c | bellard | MIPS_INVAL("TRAP");
|
1104 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
1105 | 6af0bf9c | bellard | return;
|
1106 | 6af0bf9c | bellard | } |
1107 | 6af0bf9c | bellard | } |
1108 | 6af0bf9c | bellard | save_cpu_state(ctx, 1);
|
1109 | 6af0bf9c | bellard | gen_op_trap(); |
1110 | 6af0bf9c | bellard | ctx->bstate = BS_STOP; |
1111 | 6af0bf9c | bellard | } |
1112 | 6af0bf9c | bellard | |
1113 | 6e256c93 | bellard | static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) |
1114 | c53be334 | bellard | { |
1115 | 6e256c93 | bellard | TranslationBlock *tb; |
1116 | 6e256c93 | bellard | tb = ctx->tb; |
1117 | 6e256c93 | bellard | if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
|
1118 | 6e256c93 | bellard | if (n == 0) |
1119 | 6e256c93 | bellard | gen_op_goto_tb0(TBPARAM(tb)); |
1120 | 6e256c93 | bellard | else
|
1121 | 6e256c93 | bellard | gen_op_goto_tb1(TBPARAM(tb)); |
1122 | 6e256c93 | bellard | gen_op_save_pc(dest); |
1123 | 6e256c93 | bellard | gen_op_set_T0((long)tb + n);
|
1124 | 6e256c93 | bellard | gen_op_exit_tb(); |
1125 | 6e256c93 | bellard | } else {
|
1126 | 6e256c93 | bellard | gen_op_save_pc(dest); |
1127 | 6e256c93 | bellard | gen_op_set_T0(0);
|
1128 | 6e256c93 | bellard | gen_op_exit_tb(); |
1129 | 6e256c93 | bellard | } |
1130 | c53be334 | bellard | } |
1131 | c53be334 | bellard | |
1132 | 6af0bf9c | bellard | /* Branches (before delay slot) */
|
1133 | 6af0bf9c | bellard | static void gen_compute_branch (DisasContext *ctx, uint16_t opc, |
1134 | 6af0bf9c | bellard | int rs, int rt, int32_t offset) |
1135 | 6af0bf9c | bellard | { |
1136 | 6af0bf9c | bellard | target_ulong btarget; |
1137 | 6af0bf9c | bellard | int blink, bcond;
|
1138 | 6af0bf9c | bellard | |
1139 | 6af0bf9c | bellard | btarget = -1;
|
1140 | 6af0bf9c | bellard | blink = 0;
|
1141 | 6af0bf9c | bellard | bcond = 0;
|
1142 | 6af0bf9c | bellard | /* Load needed operands */
|
1143 | 6af0bf9c | bellard | switch (opc) {
|
1144 | 6af0bf9c | bellard | case OPC_BEQ:
|
1145 | 6af0bf9c | bellard | case OPC_BEQL:
|
1146 | 6af0bf9c | bellard | case OPC_BNE:
|
1147 | 6af0bf9c | bellard | case OPC_BNEL:
|
1148 | 6af0bf9c | bellard | /* Compare two registers */
|
1149 | 6af0bf9c | bellard | if (rs != rt) {
|
1150 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, rs); |
1151 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T1, rt); |
1152 | 6af0bf9c | bellard | bcond = 1;
|
1153 | 6af0bf9c | bellard | } |
1154 | 6af0bf9c | bellard | btarget = ctx->pc + 4 + offset;
|
1155 | 6af0bf9c | bellard | break;
|
1156 | 6af0bf9c | bellard | case OPC_BGEZ:
|
1157 | 6af0bf9c | bellard | case OPC_BGEZAL:
|
1158 | 6af0bf9c | bellard | case OPC_BGEZALL:
|
1159 | 6af0bf9c | bellard | case OPC_BGEZL:
|
1160 | 6af0bf9c | bellard | case OPC_BGTZ:
|
1161 | 6af0bf9c | bellard | case OPC_BGTZL:
|
1162 | 6af0bf9c | bellard | case OPC_BLEZ:
|
1163 | 6af0bf9c | bellard | case OPC_BLEZL:
|
1164 | 6af0bf9c | bellard | case OPC_BLTZ:
|
1165 | 6af0bf9c | bellard | case OPC_BLTZAL:
|
1166 | 6af0bf9c | bellard | case OPC_BLTZALL:
|
1167 | 6af0bf9c | bellard | case OPC_BLTZL:
|
1168 | 6af0bf9c | bellard | /* Compare to zero */
|
1169 | 6af0bf9c | bellard | if (rs != 0) { |
1170 | 6af0bf9c | bellard | gen_op_load_gpr_T0(rs); |
1171 | 6af0bf9c | bellard | bcond = 1;
|
1172 | 6af0bf9c | bellard | } |
1173 | 6af0bf9c | bellard | btarget = ctx->pc + 4 + offset;
|
1174 | 6af0bf9c | bellard | break;
|
1175 | 6af0bf9c | bellard | case OPC_J:
|
1176 | 6af0bf9c | bellard | case OPC_JAL:
|
1177 | 6af0bf9c | bellard | /* Jump to immediate */
|
1178 | bc9ed47b | bellard | btarget = ((ctx->pc + 4) & 0xF0000000) | offset; |
1179 | 6af0bf9c | bellard | break;
|
1180 | 6af0bf9c | bellard | case OPC_JR:
|
1181 | 6af0bf9c | bellard | case OPC_JALR:
|
1182 | 6af0bf9c | bellard | /* Jump to register */
|
1183 | 6af0bf9c | bellard | if (offset != 0) { |
1184 | 6af0bf9c | bellard | /* Only hint = 0 is valid */
|
1185 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
1186 | 6af0bf9c | bellard | return;
|
1187 | 6af0bf9c | bellard | } |
1188 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T2, rs); |
1189 | 6af0bf9c | bellard | break;
|
1190 | 6af0bf9c | bellard | default:
|
1191 | 6af0bf9c | bellard | MIPS_INVAL("branch/jump");
|
1192 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
1193 | 6af0bf9c | bellard | return;
|
1194 | 6af0bf9c | bellard | } |
1195 | 6af0bf9c | bellard | if (bcond == 0) { |
1196 | 6af0bf9c | bellard | /* No condition to be computed */
|
1197 | 6af0bf9c | bellard | switch (opc) {
|
1198 | 6af0bf9c | bellard | case OPC_BEQ: /* rx == rx */ |
1199 | 6af0bf9c | bellard | case OPC_BEQL: /* rx == rx likely */ |
1200 | 6af0bf9c | bellard | case OPC_BGEZ: /* 0 >= 0 */ |
1201 | 6af0bf9c | bellard | case OPC_BGEZL: /* 0 >= 0 likely */ |
1202 | 6af0bf9c | bellard | case OPC_BLEZ: /* 0 <= 0 */ |
1203 | 6af0bf9c | bellard | case OPC_BLEZL: /* 0 <= 0 likely */ |
1204 | 6af0bf9c | bellard | /* Always take */
|
1205 | 4ad40f36 | bellard | ctx->hflags |= MIPS_HFLAG_B; |
1206 | 6af0bf9c | bellard | MIPS_DEBUG("balways");
|
1207 | 6af0bf9c | bellard | break;
|
1208 | 6af0bf9c | bellard | case OPC_BGEZAL: /* 0 >= 0 */ |
1209 | 6af0bf9c | bellard | case OPC_BGEZALL: /* 0 >= 0 likely */ |
1210 | 6af0bf9c | bellard | /* Always take and link */
|
1211 | 6af0bf9c | bellard | blink = 31;
|
1212 | 4ad40f36 | bellard | ctx->hflags |= MIPS_HFLAG_B; |
1213 | 6af0bf9c | bellard | MIPS_DEBUG("balways and link");
|
1214 | 6af0bf9c | bellard | break;
|
1215 | 6af0bf9c | bellard | case OPC_BNE: /* rx != rx */ |
1216 | 6af0bf9c | bellard | case OPC_BGTZ: /* 0 > 0 */ |
1217 | 6af0bf9c | bellard | case OPC_BLTZ: /* 0 < 0 */ |
1218 | 6af0bf9c | bellard | /* Treated as NOP */
|
1219 | 6af0bf9c | bellard | MIPS_DEBUG("bnever (NOP)");
|
1220 | 6af0bf9c | bellard | return;
|
1221 | eeef26cd | bellard | case OPC_BLTZAL: /* 0 < 0 */ |
1222 | eeef26cd | bellard | gen_op_set_T0(ctx->pc + 8);
|
1223 | eeef26cd | bellard | gen_op_store_T0_gpr(31);
|
1224 | eeef26cd | bellard | return;
|
1225 | eeef26cd | bellard | case OPC_BLTZALL: /* 0 < 0 likely */ |
1226 | eeef26cd | bellard | gen_op_set_T0(ctx->pc + 8);
|
1227 | eeef26cd | bellard | gen_op_store_T0_gpr(31);
|
1228 | eeef26cd | bellard | gen_goto_tb(ctx, 0, ctx->pc + 4); |
1229 | eeef26cd | bellard | return;
|
1230 | 6af0bf9c | bellard | case OPC_BNEL: /* rx != rx likely */ |
1231 | 6af0bf9c | bellard | case OPC_BGTZL: /* 0 > 0 likely */ |
1232 | 6af0bf9c | bellard | case OPC_BLTZL: /* 0 < 0 likely */ |
1233 | 6af0bf9c | bellard | /* Skip the instruction in the delay slot */
|
1234 | 6af0bf9c | bellard | MIPS_DEBUG("bnever and skip");
|
1235 | 6e256c93 | bellard | gen_goto_tb(ctx, 0, ctx->pc + 4); |
1236 | 6af0bf9c | bellard | return;
|
1237 | 6af0bf9c | bellard | case OPC_J:
|
1238 | 4ad40f36 | bellard | ctx->hflags |= MIPS_HFLAG_B; |
1239 | 6af0bf9c | bellard | MIPS_DEBUG("j %08x", btarget);
|
1240 | 6af0bf9c | bellard | break;
|
1241 | 6af0bf9c | bellard | case OPC_JAL:
|
1242 | 6af0bf9c | bellard | blink = 31;
|
1243 | 4ad40f36 | bellard | ctx->hflags |= MIPS_HFLAG_B; |
1244 | 6af0bf9c | bellard | MIPS_DEBUG("jal %08x", btarget);
|
1245 | 6af0bf9c | bellard | break;
|
1246 | 6af0bf9c | bellard | case OPC_JR:
|
1247 | 4ad40f36 | bellard | ctx->hflags |= MIPS_HFLAG_BR; |
1248 | 6af0bf9c | bellard | MIPS_DEBUG("jr %s", regnames[rs]);
|
1249 | 6af0bf9c | bellard | break;
|
1250 | 6af0bf9c | bellard | case OPC_JALR:
|
1251 | 6af0bf9c | bellard | blink = rt; |
1252 | 4ad40f36 | bellard | ctx->hflags |= MIPS_HFLAG_BR; |
1253 | 6af0bf9c | bellard | MIPS_DEBUG("jalr %s, %s", regnames[rt], regnames[rs]);
|
1254 | 6af0bf9c | bellard | break;
|
1255 | 6af0bf9c | bellard | default:
|
1256 | 6af0bf9c | bellard | MIPS_INVAL("branch/jump");
|
1257 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
1258 | 6af0bf9c | bellard | return;
|
1259 | 6af0bf9c | bellard | } |
1260 | 6af0bf9c | bellard | } else {
|
1261 | 6af0bf9c | bellard | switch (opc) {
|
1262 | 6af0bf9c | bellard | case OPC_BEQ:
|
1263 | 6af0bf9c | bellard | gen_op_eq(); |
1264 | 6af0bf9c | bellard | MIPS_DEBUG("beq %s, %s, %08x",
|
1265 | 6af0bf9c | bellard | regnames[rs], regnames[rt], btarget); |
1266 | 6af0bf9c | bellard | goto not_likely;
|
1267 | 6af0bf9c | bellard | case OPC_BEQL:
|
1268 | 6af0bf9c | bellard | gen_op_eq(); |
1269 | 6af0bf9c | bellard | MIPS_DEBUG("beql %s, %s, %08x",
|
1270 | 6af0bf9c | bellard | regnames[rs], regnames[rt], btarget); |
1271 | 6af0bf9c | bellard | goto likely;
|
1272 | 6af0bf9c | bellard | case OPC_BNE:
|
1273 | 6af0bf9c | bellard | gen_op_ne(); |
1274 | 6af0bf9c | bellard | MIPS_DEBUG("bne %s, %s, %08x",
|
1275 | 6af0bf9c | bellard | regnames[rs], regnames[rt], btarget); |
1276 | 6af0bf9c | bellard | goto not_likely;
|
1277 | 6af0bf9c | bellard | case OPC_BNEL:
|
1278 | 6af0bf9c | bellard | gen_op_ne(); |
1279 | 6af0bf9c | bellard | MIPS_DEBUG("bnel %s, %s, %08x",
|
1280 | 6af0bf9c | bellard | regnames[rs], regnames[rt], btarget); |
1281 | 6af0bf9c | bellard | goto likely;
|
1282 | 6af0bf9c | bellard | case OPC_BGEZ:
|
1283 | 6af0bf9c | bellard | gen_op_gez(); |
1284 | 6af0bf9c | bellard | MIPS_DEBUG("bgez %s, %08x", regnames[rs], btarget);
|
1285 | 6af0bf9c | bellard | goto not_likely;
|
1286 | 6af0bf9c | bellard | case OPC_BGEZL:
|
1287 | 6af0bf9c | bellard | gen_op_gez(); |
1288 | 6af0bf9c | bellard | MIPS_DEBUG("bgezl %s, %08x", regnames[rs], btarget);
|
1289 | 6af0bf9c | bellard | goto likely;
|
1290 | 6af0bf9c | bellard | case OPC_BGEZAL:
|
1291 | 6af0bf9c | bellard | gen_op_gez(); |
1292 | 6af0bf9c | bellard | MIPS_DEBUG("bgezal %s, %08x", regnames[rs], btarget);
|
1293 | 6af0bf9c | bellard | blink = 31;
|
1294 | 6af0bf9c | bellard | goto not_likely;
|
1295 | 6af0bf9c | bellard | case OPC_BGEZALL:
|
1296 | 6af0bf9c | bellard | gen_op_gez(); |
1297 | 6af0bf9c | bellard | blink = 31;
|
1298 | 6af0bf9c | bellard | MIPS_DEBUG("bgezall %s, %08x", regnames[rs], btarget);
|
1299 | 6af0bf9c | bellard | goto likely;
|
1300 | 6af0bf9c | bellard | case OPC_BGTZ:
|
1301 | 6af0bf9c | bellard | gen_op_gtz(); |
1302 | 6af0bf9c | bellard | MIPS_DEBUG("bgtz %s, %08x", regnames[rs], btarget);
|
1303 | 6af0bf9c | bellard | goto not_likely;
|
1304 | 6af0bf9c | bellard | case OPC_BGTZL:
|
1305 | 6af0bf9c | bellard | gen_op_gtz(); |
1306 | 6af0bf9c | bellard | MIPS_DEBUG("bgtzl %s, %08x", regnames[rs], btarget);
|
1307 | 6af0bf9c | bellard | goto likely;
|
1308 | 6af0bf9c | bellard | case OPC_BLEZ:
|
1309 | 6af0bf9c | bellard | gen_op_lez(); |
1310 | 6af0bf9c | bellard | MIPS_DEBUG("blez %s, %08x", regnames[rs], btarget);
|
1311 | 6af0bf9c | bellard | goto not_likely;
|
1312 | 6af0bf9c | bellard | case OPC_BLEZL:
|
1313 | 6af0bf9c | bellard | gen_op_lez(); |
1314 | 6af0bf9c | bellard | MIPS_DEBUG("blezl %s, %08x", regnames[rs], btarget);
|
1315 | 6af0bf9c | bellard | goto likely;
|
1316 | 6af0bf9c | bellard | case OPC_BLTZ:
|
1317 | 6af0bf9c | bellard | gen_op_ltz(); |
1318 | 6af0bf9c | bellard | MIPS_DEBUG("bltz %s, %08x", regnames[rs], btarget);
|
1319 | 6af0bf9c | bellard | goto not_likely;
|
1320 | 6af0bf9c | bellard | case OPC_BLTZL:
|
1321 | 6af0bf9c | bellard | gen_op_ltz(); |
1322 | 6af0bf9c | bellard | MIPS_DEBUG("bltzl %s, %08x", regnames[rs], btarget);
|
1323 | 6af0bf9c | bellard | goto likely;
|
1324 | 6af0bf9c | bellard | case OPC_BLTZAL:
|
1325 | 6af0bf9c | bellard | gen_op_ltz(); |
1326 | 6af0bf9c | bellard | blink = 31;
|
1327 | 6af0bf9c | bellard | MIPS_DEBUG("bltzal %s, %08x", regnames[rs], btarget);
|
1328 | 6af0bf9c | bellard | not_likely:
|
1329 | 4ad40f36 | bellard | ctx->hflags |= MIPS_HFLAG_BC; |
1330 | 6af0bf9c | bellard | break;
|
1331 | 6af0bf9c | bellard | case OPC_BLTZALL:
|
1332 | 6af0bf9c | bellard | gen_op_ltz(); |
1333 | 6af0bf9c | bellard | blink = 31;
|
1334 | 6af0bf9c | bellard | MIPS_DEBUG("bltzall %s, %08x", regnames[rs], btarget);
|
1335 | 6af0bf9c | bellard | likely:
|
1336 | 4ad40f36 | bellard | ctx->hflags |= MIPS_HFLAG_BL; |
1337 | 6af0bf9c | bellard | break;
|
1338 | 6af0bf9c | bellard | } |
1339 | 6af0bf9c | bellard | gen_op_set_bcond(); |
1340 | 6af0bf9c | bellard | } |
1341 | 6af0bf9c | bellard | MIPS_DEBUG("enter ds: link %d cond %02x target %08x",
|
1342 | 6af0bf9c | bellard | blink, ctx->hflags, btarget); |
1343 | 6af0bf9c | bellard | ctx->btarget = btarget; |
1344 | 6af0bf9c | bellard | if (blink > 0) { |
1345 | 6af0bf9c | bellard | gen_op_set_T0(ctx->pc + 8);
|
1346 | 6af0bf9c | bellard | gen_op_store_T0_gpr(blink); |
1347 | 6af0bf9c | bellard | } |
1348 | 6af0bf9c | bellard | return;
|
1349 | 6af0bf9c | bellard | } |
1350 | 6af0bf9c | bellard | |
1351 | 6af0bf9c | bellard | /* CP0 (MMU and control) */
|
1352 | 6af0bf9c | bellard | static void gen_cp0 (DisasContext *ctx, uint16_t opc, int rt, int rd) |
1353 | 6af0bf9c | bellard | { |
1354 | 6af0bf9c | bellard | const unsigned char *opn = "unk"; |
1355 | 6af0bf9c | bellard | |
1356 | bc2c3909 | bellard | if (!(ctx->CP0_Status & (1 << CP0St_CU0)) && |
1357 | cd7dd10f | bellard | (ctx->hflags & MIPS_HFLAG_UM) && |
1358 | bc2c3909 | bellard | !(ctx->hflags & MIPS_HFLAG_ERL) && |
1359 | bc2c3909 | bellard | !(ctx->hflags & MIPS_HFLAG_EXL)) { |
1360 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_IN_ASM) {
|
1361 | 6af0bf9c | bellard | fprintf(logfile, "CP0 is not usable\n");
|
1362 | 6af0bf9c | bellard | } |
1363 | 4ad40f36 | bellard | generate_exception_err (ctx, EXCP_CpU, 0);
|
1364 | 6af0bf9c | bellard | return;
|
1365 | 6af0bf9c | bellard | } |
1366 | d796321b | bellard | |
1367 | 6af0bf9c | bellard | switch (opc) {
|
1368 | 6af0bf9c | bellard | case OPC_MFC0:
|
1369 | 6af0bf9c | bellard | if (rt == 0) { |
1370 | 6af0bf9c | bellard | /* Treat as NOP */
|
1371 | 6af0bf9c | bellard | return;
|
1372 | 6af0bf9c | bellard | } |
1373 | 6af0bf9c | bellard | gen_op_mfc0(rd, ctx->opcode & 0x7);
|
1374 | 6af0bf9c | bellard | gen_op_store_T0_gpr(rt); |
1375 | 6af0bf9c | bellard | opn = "mfc0";
|
1376 | 6af0bf9c | bellard | break;
|
1377 | 6af0bf9c | bellard | case OPC_MTC0:
|
1378 | 6af0bf9c | bellard | /* If we get an exception, we want to restart at next instruction */
|
1379 | 6af0bf9c | bellard | ctx->pc += 4;
|
1380 | 6af0bf9c | bellard | save_cpu_state(ctx, 1);
|
1381 | 6af0bf9c | bellard | ctx->pc -= 4;
|
1382 | 6af0bf9c | bellard | GEN_LOAD_REG_TN(T0, rt); |
1383 | 6af0bf9c | bellard | gen_op_mtc0(rd, ctx->opcode & 0x7);
|
1384 | 6af0bf9c | bellard | /* Stop translation as we may have switched the execution mode */
|
1385 | 6af0bf9c | bellard | ctx->bstate = BS_STOP; |
1386 | 6af0bf9c | bellard | opn = "mtc0";
|
1387 | 6af0bf9c | bellard | break;
|
1388 | 6af0bf9c | bellard | #if defined(MIPS_USES_R4K_TLB)
|
1389 | 6af0bf9c | bellard | case OPC_TLBWI:
|
1390 | 6af0bf9c | bellard | gen_op_tlbwi(); |
1391 | 6af0bf9c | bellard | opn = "tlbwi";
|
1392 | 6af0bf9c | bellard | break;
|
1393 | 6af0bf9c | bellard | case OPC_TLBWR:
|
1394 | 6af0bf9c | bellard | gen_op_tlbwr(); |
1395 | 6af0bf9c | bellard | opn = "tlbwr";
|
1396 | 6af0bf9c | bellard | break;
|
1397 | 6af0bf9c | bellard | case OPC_TLBP:
|
1398 | 6af0bf9c | bellard | gen_op_tlbp(); |
1399 | 6af0bf9c | bellard | opn = "tlbp";
|
1400 | 6af0bf9c | bellard | break;
|
1401 | 6af0bf9c | bellard | case OPC_TLBR:
|
1402 | 6af0bf9c | bellard | gen_op_tlbr(); |
1403 | 6af0bf9c | bellard | opn = "tlbr";
|
1404 | 6af0bf9c | bellard | break;
|
1405 | 6af0bf9c | bellard | #endif
|
1406 | 6af0bf9c | bellard | case OPC_ERET:
|
1407 | 6af0bf9c | bellard | opn = "eret";
|
1408 | 6af0bf9c | bellard | save_cpu_state(ctx, 0);
|
1409 | 6af0bf9c | bellard | gen_op_eret(); |
1410 | 6af0bf9c | bellard | ctx->bstate = BS_EXCP; |
1411 | 6af0bf9c | bellard | break;
|
1412 | 6af0bf9c | bellard | case OPC_DERET:
|
1413 | 6af0bf9c | bellard | opn = "deret";
|
1414 | 6af0bf9c | bellard | if (!(ctx->hflags & MIPS_HFLAG_DM)) {
|
1415 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
1416 | 6af0bf9c | bellard | } else {
|
1417 | 6af0bf9c | bellard | save_cpu_state(ctx, 0);
|
1418 | 6af0bf9c | bellard | gen_op_deret(); |
1419 | 6af0bf9c | bellard | ctx->bstate = BS_EXCP; |
1420 | 6af0bf9c | bellard | } |
1421 | 6af0bf9c | bellard | break;
|
1422 | 4ad40f36 | bellard | case OPC_WAIT:
|
1423 | 4ad40f36 | bellard | opn = "wait";
|
1424 | 4ad40f36 | bellard | /* If we get an exception, we want to restart at next instruction */
|
1425 | 4ad40f36 | bellard | ctx->pc += 4;
|
1426 | 4ad40f36 | bellard | save_cpu_state(ctx, 1);
|
1427 | 4ad40f36 | bellard | ctx->pc -= 4;
|
1428 | 4ad40f36 | bellard | gen_op_wait(); |
1429 | 4ad40f36 | bellard | ctx->bstate = BS_EXCP; |
1430 | 4ad40f36 | bellard | break;
|
1431 | 6af0bf9c | bellard | default:
|
1432 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_IN_ASM) {
|
1433 | 6af0bf9c | bellard | fprintf(logfile, "Invalid CP0 opcode: %08x %03x %03x %03x\n",
|
1434 | 6af0bf9c | bellard | ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, |
1435 | 6af0bf9c | bellard | ((ctx->opcode >> 16) & 0x1F)); |
1436 | 6af0bf9c | bellard | } |
1437 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
1438 | 6af0bf9c | bellard | return;
|
1439 | 6af0bf9c | bellard | } |
1440 | 6af0bf9c | bellard | MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd);
|
1441 | 6af0bf9c | bellard | } |
1442 | 6af0bf9c | bellard | |
1443 | 6ea83fed | bellard | #ifdef MIPS_USES_FPU
|
1444 | 6ea83fed | bellard | /* CP1 Branches (before delay slot) */
|
1445 | 6ea83fed | bellard | static void gen_compute_branch1 (DisasContext *ctx, uint16_t cond, |
1446 | 6ea83fed | bellard | int32_t offset) |
1447 | 6ea83fed | bellard | { |
1448 | 6ea83fed | bellard | target_ulong btarget; |
1449 | 6ea83fed | bellard | |
1450 | 6ea83fed | bellard | btarget = ctx->pc + 4 + offset;
|
1451 | 6ea83fed | bellard | |
1452 | 6ea83fed | bellard | switch (cond) {
|
1453 | 6ea83fed | bellard | case 0x0000: /* bc1f */ |
1454 | 6ea83fed | bellard | gen_op_bc1f(); |
1455 | 6ea83fed | bellard | MIPS_DEBUG("bc1f %08x", btarget);
|
1456 | 6ea83fed | bellard | goto not_likely;
|
1457 | 6ea83fed | bellard | case 0x0002: /* bc1fl */ |
1458 | 6ea83fed | bellard | gen_op_bc1f(); |
1459 | 6ea83fed | bellard | MIPS_DEBUG("bc1fl %08x", btarget);
|
1460 | 6ea83fed | bellard | goto likely;
|
1461 | 6ea83fed | bellard | case 0x0001: /* bc1t */ |
1462 | 6ea83fed | bellard | gen_op_bc1t(); |
1463 | 6ea83fed | bellard | MIPS_DEBUG("bc1t %08x", btarget);
|
1464 | 6ea83fed | bellard | not_likely:
|
1465 | 6ea83fed | bellard | ctx->hflags |= MIPS_HFLAG_BC; |
1466 | 6ea83fed | bellard | break;
|
1467 | 6ea83fed | bellard | case 0x0003: /* bc1tl */ |
1468 | 6ea83fed | bellard | gen_op_bc1t(); |
1469 | 6ea83fed | bellard | MIPS_DEBUG("bc1tl %08x", btarget);
|
1470 | 6ea83fed | bellard | likely:
|
1471 | 6ea83fed | bellard | ctx->hflags |= MIPS_HFLAG_BL; |
1472 | 6ea83fed | bellard | break;
|
1473 | 6ea83fed | bellard | default:
|
1474 | 6ea83fed | bellard | MIPS_INVAL("cp1 branch/jump");
|
1475 | 6ea83fed | bellard | generate_exception(ctx, EXCP_RI); |
1476 | 6ea83fed | bellard | return;
|
1477 | 6ea83fed | bellard | } |
1478 | 6ea83fed | bellard | gen_op_set_bcond(); |
1479 | 6ea83fed | bellard | |
1480 | 6ea83fed | bellard | MIPS_DEBUG("enter ds: cond %02x target %08x",
|
1481 | 6ea83fed | bellard | ctx->hflags, btarget); |
1482 | 6ea83fed | bellard | ctx->btarget = btarget; |
1483 | 6ea83fed | bellard | |
1484 | 6ea83fed | bellard | return;
|
1485 | 6ea83fed | bellard | } |
1486 | 6ea83fed | bellard | |
1487 | 6af0bf9c | bellard | /* Coprocessor 1 (FPU) */
|
1488 | 6ea83fed | bellard | static void gen_cp1 (DisasContext *ctx, uint16_t opc, int rt, int fs) |
1489 | 6ea83fed | bellard | { |
1490 | 6ea83fed | bellard | const unsigned char *opn = "unk"; |
1491 | 6ea83fed | bellard | |
1492 | 6ea83fed | bellard | switch (opc) {
|
1493 | 6ea83fed | bellard | case OPC_MFC1:
|
1494 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1495 | 6ea83fed | bellard | gen_op_mfc1(); |
1496 | 6ea83fed | bellard | GEN_STORE_TN_REG(rt, T0); |
1497 | 6ea83fed | bellard | opn = "mfc1";
|
1498 | 6ea83fed | bellard | break;
|
1499 | 6ea83fed | bellard | case OPC_MTC1:
|
1500 | 6ea83fed | bellard | GEN_LOAD_REG_TN(T0, rt); |
1501 | 6ea83fed | bellard | gen_op_mtc1(); |
1502 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fs, WT0); |
1503 | 6ea83fed | bellard | opn = "mtc1";
|
1504 | 6ea83fed | bellard | break;
|
1505 | 6ea83fed | bellard | case OPC_CFC1:
|
1506 | 6ea83fed | bellard | if (fs != 0 && fs != 31) { |
1507 | 6ea83fed | bellard | MIPS_INVAL("cfc1 freg");
|
1508 | 6ea83fed | bellard | generate_exception(ctx, EXCP_RI); |
1509 | 6ea83fed | bellard | return;
|
1510 | 6ea83fed | bellard | } |
1511 | 6ea83fed | bellard | GEN_LOAD_IMM_TN(T1, fs); |
1512 | 6ea83fed | bellard | gen_op_cfc1(); |
1513 | 6ea83fed | bellard | GEN_STORE_TN_REG(rt, T0); |
1514 | 6ea83fed | bellard | opn = "cfc1";
|
1515 | 6ea83fed | bellard | break;
|
1516 | 6ea83fed | bellard | case OPC_CTC1:
|
1517 | 6ea83fed | bellard | if (fs != 0 && fs != 31) { |
1518 | 6ea83fed | bellard | MIPS_INVAL("ctc1 freg");
|
1519 | 6ea83fed | bellard | generate_exception(ctx, EXCP_RI); |
1520 | 6ea83fed | bellard | return;
|
1521 | 6ea83fed | bellard | } |
1522 | 6ea83fed | bellard | GEN_LOAD_IMM_TN(T1, fs); |
1523 | 6ea83fed | bellard | GEN_LOAD_REG_TN(T0, rt); |
1524 | 6ea83fed | bellard | gen_op_ctc1(); |
1525 | 6ea83fed | bellard | opn = "ctc1";
|
1526 | 6ea83fed | bellard | break;
|
1527 | 6ea83fed | bellard | default:
|
1528 | 6ea83fed | bellard | if (loglevel & CPU_LOG_TB_IN_ASM) {
|
1529 | 6ea83fed | bellard | fprintf(logfile, "Invalid CP1 opcode: %08x %03x %03x %03x\n",
|
1530 | 6ea83fed | bellard | ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, |
1531 | 6ea83fed | bellard | ((ctx->opcode >> 16) & 0x1F)); |
1532 | 6ea83fed | bellard | } |
1533 | 6ea83fed | bellard | generate_exception(ctx, EXCP_RI); |
1534 | 6ea83fed | bellard | return;
|
1535 | 6ea83fed | bellard | } |
1536 | 6ea83fed | bellard | MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]);
|
1537 | 6ea83fed | bellard | } |
1538 | 6ea83fed | bellard | |
1539 | 6ea83fed | bellard | /* verify if floating point register is valid; an operation is not defined
|
1540 | 6ea83fed | bellard | * if bit 0 of any register specification is set and the FR bit in the
|
1541 | 6ea83fed | bellard | * Status register equals zero, since the register numbers specify an
|
1542 | 6ea83fed | bellard | * even-odd pair of adjacent coprocessor general registers. When the FR bit
|
1543 | 6ea83fed | bellard | * in the Status register equals one, both even and odd register numbers
|
1544 | 6ea83fed | bellard | * are valid.
|
1545 | 6ea83fed | bellard | *
|
1546 | 6ea83fed | bellard | * Multiple float registers can be checked by calling
|
1547 | 6ea83fed | bellard | * CHECK_FR(ctx, freg1 | freg2 | ... | fregN);
|
1548 | 6ea83fed | bellard | */
|
1549 | 6ea83fed | bellard | #define CHECK_FR(ctx, freg) do { \ |
1550 | 6ea83fed | bellard | if (!((ctx)->CP0_Status & (1<<CP0St_FR)) && ((freg) & 1)) { \ |
1551 | 6ea83fed | bellard | generate_exception(ctx, EXCP_RI); \ |
1552 | 6ea83fed | bellard | return; \
|
1553 | 6ea83fed | bellard | } \ |
1554 | 6ea83fed | bellard | } while(0) |
1555 | 6ea83fed | bellard | |
1556 | 6ea83fed | bellard | #define FOP(func, fmt) (((fmt) << 21) | (func)) |
1557 | 6ea83fed | bellard | |
1558 | 6ea83fed | bellard | static void gen_farith (DisasContext *ctx, int fmt, int ft, int fs, int fd, int func) |
1559 | 6ea83fed | bellard | { |
1560 | 6ea83fed | bellard | const unsigned char *opn = "unk"; |
1561 | 6ea83fed | bellard | const char *condnames[] = { |
1562 | 6ea83fed | bellard | "c.f",
|
1563 | 6ea83fed | bellard | "c.un",
|
1564 | 6ea83fed | bellard | "c.eq",
|
1565 | 6ea83fed | bellard | "c.ueq",
|
1566 | 6ea83fed | bellard | "c.olt",
|
1567 | 6ea83fed | bellard | "c.ult",
|
1568 | 6ea83fed | bellard | "c.ole",
|
1569 | 6ea83fed | bellard | "c.ule",
|
1570 | 6ea83fed | bellard | "c.sf",
|
1571 | 6ea83fed | bellard | "c.ngle",
|
1572 | 6ea83fed | bellard | "c.seq",
|
1573 | 6ea83fed | bellard | "c.ngl",
|
1574 | 6ea83fed | bellard | "c.lt",
|
1575 | 6ea83fed | bellard | "c.nge",
|
1576 | 6ea83fed | bellard | "c.le",
|
1577 | 6ea83fed | bellard | "c.ngt",
|
1578 | 6ea83fed | bellard | }; |
1579 | 6ea83fed | bellard | int binary = 0; |
1580 | 6ea83fed | bellard | |
1581 | 6ea83fed | bellard | switch (ctx->opcode & FOP(0x3f, 0x1f)) { |
1582 | 6ea83fed | bellard | case FOP(0, 17): |
1583 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft | fd); |
1584 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1585 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT1, ft); |
1586 | 6ea83fed | bellard | gen_op_float_add_d(); |
1587 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1588 | 6ea83fed | bellard | opn = "add.d";
|
1589 | 6ea83fed | bellard | binary = 1;
|
1590 | 6ea83fed | bellard | break;
|
1591 | 6ea83fed | bellard | case FOP(1, 17): |
1592 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft | fd); |
1593 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1594 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT1, ft); |
1595 | 6ea83fed | bellard | gen_op_float_sub_d(); |
1596 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1597 | 6ea83fed | bellard | opn = "sub.d";
|
1598 | 6ea83fed | bellard | binary = 1;
|
1599 | 6ea83fed | bellard | break;
|
1600 | 6ea83fed | bellard | case FOP(2, 17): |
1601 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft | fd); |
1602 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1603 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT1, ft); |
1604 | 6ea83fed | bellard | gen_op_float_mul_d(); |
1605 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1606 | 6ea83fed | bellard | opn = "mul.d";
|
1607 | 6ea83fed | bellard | binary = 1;
|
1608 | 6ea83fed | bellard | break;
|
1609 | 6ea83fed | bellard | case FOP(3, 17): |
1610 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft | fd); |
1611 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1612 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT1, ft); |
1613 | 6ea83fed | bellard | gen_op_float_div_d(); |
1614 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1615 | 6ea83fed | bellard | opn = "div.d";
|
1616 | 6ea83fed | bellard | binary = 1;
|
1617 | 6ea83fed | bellard | break;
|
1618 | 6ea83fed | bellard | case FOP(4, 17): |
1619 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1620 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1621 | 6ea83fed | bellard | gen_op_float_sqrt_d(); |
1622 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1623 | 6ea83fed | bellard | opn = "sqrt.d";
|
1624 | 6ea83fed | bellard | break;
|
1625 | 6ea83fed | bellard | case FOP(5, 17): |
1626 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1627 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1628 | 6ea83fed | bellard | gen_op_float_abs_d(); |
1629 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1630 | 6ea83fed | bellard | opn = "abs.d";
|
1631 | 6ea83fed | bellard | break;
|
1632 | 6ea83fed | bellard | case FOP(6, 17): |
1633 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1634 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1635 | 6ea83fed | bellard | gen_op_float_mov_d(); |
1636 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1637 | 6ea83fed | bellard | opn = "mov.d";
|
1638 | 6ea83fed | bellard | break;
|
1639 | 6ea83fed | bellard | case FOP(7, 17): |
1640 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1641 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1642 | 6ea83fed | bellard | gen_op_float_chs_d(); |
1643 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1644 | 6ea83fed | bellard | opn = "neg.d";
|
1645 | 6ea83fed | bellard | break;
|
1646 | 6ea83fed | bellard | /* 8 - round.l */
|
1647 | 6ea83fed | bellard | /* 9 - trunc.l */
|
1648 | 6ea83fed | bellard | /* 10 - ceil.l */
|
1649 | 6ea83fed | bellard | /* 11 - floor.l */
|
1650 | 6ea83fed | bellard | case FOP(12, 17): |
1651 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1652 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1653 | 6ea83fed | bellard | gen_op_float_roundw_d(); |
1654 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1655 | 6ea83fed | bellard | opn = "round.w.d";
|
1656 | 6ea83fed | bellard | break;
|
1657 | 6ea83fed | bellard | case FOP(13, 17): |
1658 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1659 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1660 | 6ea83fed | bellard | gen_op_float_truncw_d(); |
1661 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1662 | 6ea83fed | bellard | opn = "trunc.w.d";
|
1663 | 6ea83fed | bellard | break;
|
1664 | 6ea83fed | bellard | case FOP(14, 17): |
1665 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1666 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1667 | 6ea83fed | bellard | gen_op_float_ceilw_d(); |
1668 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1669 | 6ea83fed | bellard | opn = "ceil.w.d";
|
1670 | 6ea83fed | bellard | break;
|
1671 | 6ea83fed | bellard | case FOP(15, 17): |
1672 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1673 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1674 | 6ea83fed | bellard | gen_op_float_floorw_d(); |
1675 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1676 | 6ea83fed | bellard | opn = "ceil.w.d";
|
1677 | 6ea83fed | bellard | break;
|
1678 | dd016883 | bellard | case FOP(33, 16): /* cvt.d.s */ |
1679 | dd016883 | bellard | CHECK_FR(ctx, fs | fd); |
1680 | dd016883 | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1681 | dd016883 | bellard | gen_op_float_cvtd_s(); |
1682 | dd016883 | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1683 | dd016883 | bellard | opn = "cvt.d.s";
|
1684 | dd016883 | bellard | break;
|
1685 | 6ea83fed | bellard | case FOP(33, 20): /* cvt.d.w */ |
1686 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1687 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1688 | 6ea83fed | bellard | gen_op_float_cvtd_w(); |
1689 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, DT2); |
1690 | 6ea83fed | bellard | opn = "cvt.d.w";
|
1691 | 6ea83fed | bellard | break;
|
1692 | 6ea83fed | bellard | case FOP(48, 17): |
1693 | 6ea83fed | bellard | case FOP(49, 17): |
1694 | 6ea83fed | bellard | case FOP(50, 17): |
1695 | 6ea83fed | bellard | case FOP(51, 17): |
1696 | 6ea83fed | bellard | case FOP(52, 17): |
1697 | 6ea83fed | bellard | case FOP(53, 17): |
1698 | 6ea83fed | bellard | case FOP(54, 17): |
1699 | 6ea83fed | bellard | case FOP(55, 17): |
1700 | 6ea83fed | bellard | case FOP(56, 17): |
1701 | 6ea83fed | bellard | case FOP(57, 17): |
1702 | 6ea83fed | bellard | case FOP(58, 17): |
1703 | 6ea83fed | bellard | case FOP(59, 17): |
1704 | 6ea83fed | bellard | case FOP(60, 17): |
1705 | 6ea83fed | bellard | case FOP(61, 17): |
1706 | 6ea83fed | bellard | case FOP(62, 17): |
1707 | 6ea83fed | bellard | case FOP(63, 17): |
1708 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft); |
1709 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT0, fs); |
1710 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(DT1, ft); |
1711 | 6ea83fed | bellard | gen_cmp_d(func-48);
|
1712 | 6ea83fed | bellard | opn = condnames[func-48];
|
1713 | 6ea83fed | bellard | break;
|
1714 | 6ea83fed | bellard | case FOP(0, 16): |
1715 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft | fd); |
1716 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1717 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT1, ft); |
1718 | 6ea83fed | bellard | gen_op_float_add_s(); |
1719 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1720 | 6ea83fed | bellard | opn = "add.s";
|
1721 | 6ea83fed | bellard | binary = 1;
|
1722 | 6ea83fed | bellard | break;
|
1723 | 6ea83fed | bellard | case FOP(1, 16): |
1724 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft | fd); |
1725 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1726 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT1, ft); |
1727 | 6ea83fed | bellard | gen_op_float_sub_s(); |
1728 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1729 | 6ea83fed | bellard | opn = "sub.s";
|
1730 | 6ea83fed | bellard | binary = 1;
|
1731 | 6ea83fed | bellard | break;
|
1732 | 6ea83fed | bellard | case FOP(2, 16): |
1733 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft | fd); |
1734 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1735 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT1, ft); |
1736 | 6ea83fed | bellard | gen_op_float_mul_s(); |
1737 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1738 | 6ea83fed | bellard | opn = "mul.s";
|
1739 | 6ea83fed | bellard | binary = 1;
|
1740 | 6ea83fed | bellard | break;
|
1741 | 6ea83fed | bellard | case FOP(3, 16): |
1742 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft | fd); |
1743 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1744 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT1, ft); |
1745 | 6ea83fed | bellard | gen_op_float_div_s(); |
1746 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1747 | 6ea83fed | bellard | opn = "div.s";
|
1748 | 6ea83fed | bellard | binary = 1;
|
1749 | 6ea83fed | bellard | break;
|
1750 | 6ea83fed | bellard | case FOP(4, 16): |
1751 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1752 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1753 | 6ea83fed | bellard | gen_op_float_sqrt_s(); |
1754 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1755 | 6ea83fed | bellard | opn = "sqrt.s";
|
1756 | 6ea83fed | bellard | break;
|
1757 | 6ea83fed | bellard | case FOP(5, 16): |
1758 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1759 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1760 | 6ea83fed | bellard | gen_op_float_abs_s(); |
1761 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1762 | 6ea83fed | bellard | opn = "abs.s";
|
1763 | 6ea83fed | bellard | break;
|
1764 | 6ea83fed | bellard | case FOP(6, 16): |
1765 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1766 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1767 | 6ea83fed | bellard | gen_op_float_mov_s(); |
1768 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1769 | 6ea83fed | bellard | opn = "mov.s";
|
1770 | 6ea83fed | bellard | break;
|
1771 | 6ea83fed | bellard | case FOP(7, 16): |
1772 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1773 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1774 | 6ea83fed | bellard | gen_op_float_chs_s(); |
1775 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1776 | 6ea83fed | bellard | opn = "neg.s";
|
1777 | 6ea83fed | bellard | break;
|
1778 | 6ea83fed | bellard | case FOP(12, 16): |
1779 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1780 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1781 | 6ea83fed | bellard | gen_op_float_roundw_s(); |
1782 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1783 | 6ea83fed | bellard | opn = "round.w.s";
|
1784 | 6ea83fed | bellard | break;
|
1785 | 6ea83fed | bellard | case FOP(13, 16): |
1786 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1787 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1788 | 6ea83fed | bellard | gen_op_float_truncw_s(); |
1789 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1790 | 6ea83fed | bellard | opn = "trunc.w.s";
|
1791 | 6ea83fed | bellard | break;
|
1792 | dd016883 | bellard | case FOP(32, 17): /* cvt.s.d */ |
1793 | dd016883 | bellard | CHECK_FR(ctx, fs | fd); |
1794 | 417f38f0 | pbrook | GEN_LOAD_FREG_FTN(DT0, fs); |
1795 | dd016883 | bellard | gen_op_float_cvts_d(); |
1796 | dd016883 | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1797 | dd016883 | bellard | opn = "cvt.s.d";
|
1798 | dd016883 | bellard | break;
|
1799 | 6ea83fed | bellard | case FOP(32, 20): /* cvt.s.w */ |
1800 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1801 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1802 | 6ea83fed | bellard | gen_op_float_cvts_w(); |
1803 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1804 | 6ea83fed | bellard | opn = "cvt.s.w";
|
1805 | 6ea83fed | bellard | break;
|
1806 | 6ea83fed | bellard | case FOP(36, 16): /* cvt.w.s */ |
1807 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1808 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1809 | 6ea83fed | bellard | gen_op_float_cvtw_s(); |
1810 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1811 | 6ea83fed | bellard | opn = "cvt.w.s";
|
1812 | 6ea83fed | bellard | break;
|
1813 | 6ea83fed | bellard | case FOP(36, 17): /* cvt.w.d */ |
1814 | 6ea83fed | bellard | CHECK_FR(ctx, fs | fd); |
1815 | 417f38f0 | pbrook | GEN_LOAD_FREG_FTN(DT0, fs); |
1816 | 6ea83fed | bellard | gen_op_float_cvtw_d(); |
1817 | 6ea83fed | bellard | GEN_STORE_FTN_FREG(fd, WT2); |
1818 | 6ea83fed | bellard | opn = "cvt.w.d";
|
1819 | 6ea83fed | bellard | break;
|
1820 | 6ea83fed | bellard | case FOP(48, 16): |
1821 | 6ea83fed | bellard | case FOP(49, 16): |
1822 | 6ea83fed | bellard | case FOP(50, 16): |
1823 | 6ea83fed | bellard | case FOP(51, 16): |
1824 | 6ea83fed | bellard | case FOP(52, 16): |
1825 | 6ea83fed | bellard | case FOP(53, 16): |
1826 | 6ea83fed | bellard | case FOP(54, 16): |
1827 | 6ea83fed | bellard | case FOP(55, 16): |
1828 | 6ea83fed | bellard | case FOP(56, 16): |
1829 | 6ea83fed | bellard | case FOP(57, 16): |
1830 | 6ea83fed | bellard | case FOP(58, 16): |
1831 | 6ea83fed | bellard | case FOP(59, 16): |
1832 | 6ea83fed | bellard | case FOP(60, 16): |
1833 | 6ea83fed | bellard | case FOP(61, 16): |
1834 | 6ea83fed | bellard | case FOP(62, 16): |
1835 | 6ea83fed | bellard | case FOP(63, 16): |
1836 | 6ea83fed | bellard | CHECK_FR(ctx, fs | ft); |
1837 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT0, fs); |
1838 | 6ea83fed | bellard | GEN_LOAD_FREG_FTN(WT1, ft); |
1839 | 6ea83fed | bellard | gen_cmp_s(func-48);
|
1840 | 6ea83fed | bellard | opn = condnames[func-48];
|
1841 | 6ea83fed | bellard | break;
|
1842 | 6ea83fed | bellard | default:
|
1843 | 6ea83fed | bellard | if (loglevel & CPU_LOG_TB_IN_ASM) {
|
1844 | 6ea83fed | bellard | fprintf(logfile, "Invalid arith function: %08x %03x %03x %03x\n",
|
1845 | 6ea83fed | bellard | ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F, |
1846 | 6ea83fed | bellard | ((ctx->opcode >> 16) & 0x1F)); |
1847 | 6ea83fed | bellard | } |
1848 | 6ea83fed | bellard | generate_exception(ctx, EXCP_RI); |
1849 | 6ea83fed | bellard | return;
|
1850 | 6ea83fed | bellard | } |
1851 | 6ea83fed | bellard | if (binary)
|
1852 | 6ea83fed | bellard | MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]);
|
1853 | 6ea83fed | bellard | else
|
1854 | 6ea83fed | bellard | MIPS_DEBUG("%s %s,%s", opn, fregnames[fd], fregnames[fs]);
|
1855 | 6ea83fed | bellard | } |
1856 | 6ea83fed | bellard | #endif
|
1857 | 6af0bf9c | bellard | |
1858 | 6af0bf9c | bellard | /* ISA extensions */
|
1859 | 6af0bf9c | bellard | /* MIPS16 extension to MIPS32 */
|
1860 | 6af0bf9c | bellard | /* SmartMIPS extension to MIPS32 */
|
1861 | 6af0bf9c | bellard | |
1862 | 6af0bf9c | bellard | #ifdef TARGET_MIPS64
|
1863 | 6af0bf9c | bellard | static void gen_arith64 (DisasContext *ctx, uint16_t opc) |
1864 | 6af0bf9c | bellard | { |
1865 | 6af0bf9c | bellard | if (func == 0x02 && rd == 0) { |
1866 | 6af0bf9c | bellard | /* NOP */
|
1867 | 6af0bf9c | bellard | return;
|
1868 | 6af0bf9c | bellard | } |
1869 | 6af0bf9c | bellard | if (rs == 0 || rt == 0) { |
1870 | 6af0bf9c | bellard | gen_op_reset_T0(); |
1871 | 6af0bf9c | bellard | gen_op_save64(); |
1872 | 6af0bf9c | bellard | } else {
|
1873 | 6af0bf9c | bellard | gen_op_load_gpr_T0(rs); |
1874 | 6af0bf9c | bellard | gen_op_load_gpr_T1(rt); |
1875 | 6af0bf9c | bellard | gen_op_save64(); |
1876 | 6af0bf9c | bellard | if (func & 0x01) |
1877 | 6af0bf9c | bellard | gen_op_mul64u(); |
1878 | 6af0bf9c | bellard | else
|
1879 | 6af0bf9c | bellard | gen_op_mul64s(); |
1880 | 6af0bf9c | bellard | } |
1881 | 6af0bf9c | bellard | if (func & 0x02) |
1882 | 6af0bf9c | bellard | gen_op_add64(); |
1883 | 6af0bf9c | bellard | else
|
1884 | 6af0bf9c | bellard | gen_op_sub64(); |
1885 | 6af0bf9c | bellard | } |
1886 | 6af0bf9c | bellard | |
1887 | 6af0bf9c | bellard | /* Coprocessor 3 (FPU) */
|
1888 | 6af0bf9c | bellard | |
1889 | 6af0bf9c | bellard | /* MDMX extension to MIPS64 */
|
1890 | 6af0bf9c | bellard | /* MIPS-3D extension to MIPS64 */
|
1891 | 6af0bf9c | bellard | |
1892 | 6af0bf9c | bellard | #endif
|
1893 | 6af0bf9c | bellard | |
1894 | c53be334 | bellard | static void gen_blikely(DisasContext *ctx) |
1895 | c53be334 | bellard | { |
1896 | eeef26cd | bellard | int l1;
|
1897 | eeef26cd | bellard | l1 = gen_new_label(); |
1898 | eeef26cd | bellard | gen_op_jnz_T2(l1); |
1899 | 4ad40f36 | bellard | gen_op_save_state(ctx->hflags & ~MIPS_HFLAG_BMASK); |
1900 | eeef26cd | bellard | gen_goto_tb(ctx, 1, ctx->pc + 4); |
1901 | eeef26cd | bellard | gen_set_label(l1); |
1902 | c53be334 | bellard | } |
1903 | c53be334 | bellard | |
1904 | 6af0bf9c | bellard | static void decode_opc (DisasContext *ctx) |
1905 | 6af0bf9c | bellard | { |
1906 | 6af0bf9c | bellard | int32_t offset; |
1907 | 6af0bf9c | bellard | int rs, rt, rd, sa;
|
1908 | 6af0bf9c | bellard | uint16_t op, op1; |
1909 | 6af0bf9c | bellard | int16_t imm; |
1910 | 6af0bf9c | bellard | |
1911 | d796321b | bellard | /* make sure instructions are on a word boundary */
|
1912 | d796321b | bellard | if (ctx->pc & 0x3) { |
1913 | d796321b | bellard | generate_exception(ctx, EXCP_AdEL); |
1914 | d796321b | bellard | return;
|
1915 | d796321b | bellard | } |
1916 | d796321b | bellard | |
1917 | 4ad40f36 | bellard | if ((ctx->hflags & MIPS_HFLAG_BMASK) == MIPS_HFLAG_BL) {
|
1918 | 6af0bf9c | bellard | /* Handle blikely not taken case */
|
1919 | 6af0bf9c | bellard | MIPS_DEBUG("blikely condition (%08x)", ctx->pc + 4); |
1920 | c53be334 | bellard | gen_blikely(ctx); |
1921 | 6af0bf9c | bellard | } |
1922 | 6af0bf9c | bellard | op = ctx->opcode >> 26;
|
1923 | 6af0bf9c | bellard | rs = ((ctx->opcode >> 21) & 0x1F); |
1924 | 6af0bf9c | bellard | rt = ((ctx->opcode >> 16) & 0x1F); |
1925 | 6af0bf9c | bellard | rd = ((ctx->opcode >> 11) & 0x1F); |
1926 | 6af0bf9c | bellard | sa = ((ctx->opcode >> 6) & 0x1F); |
1927 | 6af0bf9c | bellard | imm = (int16_t)ctx->opcode; |
1928 | 6af0bf9c | bellard | switch (op) {
|
1929 | 6af0bf9c | bellard | case 0x00: /* Special opcode */ |
1930 | 6af0bf9c | bellard | op1 = ctx->opcode & 0x3F;
|
1931 | 6af0bf9c | bellard | switch (op1) {
|
1932 | 6af0bf9c | bellard | case 0x00: /* Arithmetic with immediate */ |
1933 | 6af0bf9c | bellard | case 0x02 ... 0x03: |
1934 | 6af0bf9c | bellard | gen_arith_imm(ctx, op1 | EXT_SPECIAL, rd, rt, sa); |
1935 | 6af0bf9c | bellard | break;
|
1936 | 6af0bf9c | bellard | case 0x04: /* Arithmetic */ |
1937 | 6af0bf9c | bellard | case 0x06 ... 0x07: |
1938 | 6af0bf9c | bellard | case 0x0A ... 0x0B: |
1939 | 6af0bf9c | bellard | case 0x20 ... 0x27: |
1940 | 6af0bf9c | bellard | case 0x2A ... 0x2B: |
1941 | 6af0bf9c | bellard | gen_arith(ctx, op1 | EXT_SPECIAL, rd, rs, rt); |
1942 | 6af0bf9c | bellard | break;
|
1943 | 6af0bf9c | bellard | case 0x18 ... 0x1B: /* MULT / DIV */ |
1944 | 6af0bf9c | bellard | gen_muldiv(ctx, op1 | EXT_SPECIAL, rs, rt); |
1945 | 6af0bf9c | bellard | break;
|
1946 | 6af0bf9c | bellard | case 0x08 ... 0x09: /* Jumps */ |
1947 | 6af0bf9c | bellard | gen_compute_branch(ctx, op1 | EXT_SPECIAL, rs, rd, sa); |
1948 | 6af0bf9c | bellard | return;
|
1949 | 6af0bf9c | bellard | case 0x30 ... 0x34: /* Traps */ |
1950 | 6af0bf9c | bellard | case 0x36: |
1951 | 6af0bf9c | bellard | gen_trap(ctx, op1 | EXT_SPECIAL, rs, rt, -1);
|
1952 | 6af0bf9c | bellard | break;
|
1953 | 6af0bf9c | bellard | case 0x10: /* Move from HI/LO */ |
1954 | 6af0bf9c | bellard | case 0x12: |
1955 | 6af0bf9c | bellard | gen_HILO(ctx, op1 | EXT_SPECIAL, rd); |
1956 | 6af0bf9c | bellard | break;
|
1957 | 6af0bf9c | bellard | case 0x11: |
1958 | 6af0bf9c | bellard | case 0x13: /* Move to HI/LO */ |
1959 | 6af0bf9c | bellard | gen_HILO(ctx, op1 | EXT_SPECIAL, rs); |
1960 | 6af0bf9c | bellard | break;
|
1961 | 6af0bf9c | bellard | case 0x0C: /* SYSCALL */ |
1962 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_SYSCALL); |
1963 | 6af0bf9c | bellard | break;
|
1964 | 6af0bf9c | bellard | case 0x0D: /* BREAK */ |
1965 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_BREAK); |
1966 | 6af0bf9c | bellard | break;
|
1967 | 6af0bf9c | bellard | case 0x0F: /* SYNC */ |
1968 | 6af0bf9c | bellard | /* Treat as a noop */
|
1969 | 6af0bf9c | bellard | break;
|
1970 | 6af0bf9c | bellard | case 0x05: /* Pmon entry point */ |
1971 | 6af0bf9c | bellard | gen_op_pmon((ctx->opcode >> 6) & 0x1F); |
1972 | 6af0bf9c | bellard | break;
|
1973 | 4ad40f36 | bellard | |
1974 | 6af0bf9c | bellard | case 0x01: /* MOVCI */ |
1975 | 4ad40f36 | bellard | #if defined (MIPS_HAS_MOVCI)
|
1976 | 4ad40f36 | bellard | /* XXX */
|
1977 | 4ad40f36 | bellard | #else
|
1978 | 4ad40f36 | bellard | /* Not implemented */
|
1979 | 4ad40f36 | bellard | generate_exception_err (ctx, EXCP_CpU, 1);
|
1980 | 6af0bf9c | bellard | #endif
|
1981 | 4ad40f36 | bellard | break;
|
1982 | 4ad40f36 | bellard | |
1983 | 6af0bf9c | bellard | #if defined (TARGET_MIPS64)
|
1984 | 6af0bf9c | bellard | case 0x14: /* MIPS64 specific opcodes */ |
1985 | 6af0bf9c | bellard | case 0x16: |
1986 | 6af0bf9c | bellard | case 0x17: |
1987 | 6af0bf9c | bellard | case 0x1C ... 0x1F: |
1988 | 6af0bf9c | bellard | case 0x2C ... 0x2F: |
1989 | 6af0bf9c | bellard | case 0x37: |
1990 | 6af0bf9c | bellard | case 0x39 ... 0x3B: |
1991 | 6af0bf9c | bellard | case 0x3E ... 0x3F: |
1992 | 6af0bf9c | bellard | #endif
|
1993 | 6af0bf9c | bellard | default: /* Invalid */ |
1994 | 6af0bf9c | bellard | MIPS_INVAL("special");
|
1995 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
1996 | 6af0bf9c | bellard | break;
|
1997 | 6af0bf9c | bellard | } |
1998 | 6af0bf9c | bellard | break;
|
1999 | 6af0bf9c | bellard | case 0x1C: /* Special2 opcode */ |
2000 | 6af0bf9c | bellard | op1 = ctx->opcode & 0x3F;
|
2001 | 6af0bf9c | bellard | switch (op1) {
|
2002 | 6af0bf9c | bellard | #if defined (MIPS_USES_R4K_EXT)
|
2003 | 6af0bf9c | bellard | /* Those instructions are not part of MIPS32 core */
|
2004 | 6af0bf9c | bellard | case 0x00 ... 0x01: /* Multiply and add/sub */ |
2005 | 6af0bf9c | bellard | case 0x04 ... 0x05: |
2006 | 6af0bf9c | bellard | gen_muldiv(ctx, op1 | EXT_SPECIAL2, rs, rt); |
2007 | 6af0bf9c | bellard | break;
|
2008 | 6af0bf9c | bellard | case 0x02: /* MUL */ |
2009 | 6af0bf9c | bellard | gen_arith(ctx, op1 | EXT_SPECIAL2, rd, rs, rt); |
2010 | 6af0bf9c | bellard | break;
|
2011 | 6af0bf9c | bellard | case 0x20 ... 0x21: /* CLO / CLZ */ |
2012 | 6af0bf9c | bellard | gen_cl(ctx, op1 | EXT_SPECIAL2, rd, rs); |
2013 | 6af0bf9c | bellard | break;
|
2014 | 6af0bf9c | bellard | #endif
|
2015 | 6af0bf9c | bellard | case 0x3F: /* SDBBP */ |
2016 | 6af0bf9c | bellard | /* XXX: not clear which exception should be raised
|
2017 | 6af0bf9c | bellard | * when in debug mode...
|
2018 | 6af0bf9c | bellard | */
|
2019 | 6af0bf9c | bellard | if (!(ctx->hflags & MIPS_HFLAG_DM)) {
|
2020 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_DBp); |
2021 | 6af0bf9c | bellard | } else {
|
2022 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_DBp); |
2023 | 6af0bf9c | bellard | } |
2024 | 6af0bf9c | bellard | /* Treat as a noop */
|
2025 | 6af0bf9c | bellard | break;
|
2026 | 6af0bf9c | bellard | default: /* Invalid */ |
2027 | 6af0bf9c | bellard | MIPS_INVAL("special2");
|
2028 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
2029 | 6af0bf9c | bellard | break;
|
2030 | 6af0bf9c | bellard | } |
2031 | 6af0bf9c | bellard | break;
|
2032 | 6af0bf9c | bellard | case 0x01: /* B REGIMM opcode */ |
2033 | 6af0bf9c | bellard | op1 = ((ctx->opcode >> 16) & 0x1F); |
2034 | 6af0bf9c | bellard | switch (op1) {
|
2035 | 6af0bf9c | bellard | case 0x00 ... 0x03: /* REGIMM branches */ |
2036 | 6af0bf9c | bellard | case 0x10 ... 0x13: |
2037 | 6af0bf9c | bellard | gen_compute_branch(ctx, op1 | EXT_REGIMM, rs, -1, imm << 2); |
2038 | 6af0bf9c | bellard | return;
|
2039 | 6af0bf9c | bellard | case 0x08 ... 0x0C: /* Traps */ |
2040 | 6af0bf9c | bellard | case 0x0E: |
2041 | 6af0bf9c | bellard | gen_trap(ctx, op1 | EXT_REGIMM, rs, -1, imm);
|
2042 | 6af0bf9c | bellard | break;
|
2043 | 6af0bf9c | bellard | default: /* Invalid */ |
2044 | 6af0bf9c | bellard | MIPS_INVAL("REGIMM");
|
2045 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
2046 | 6af0bf9c | bellard | break;
|
2047 | 6af0bf9c | bellard | } |
2048 | 6af0bf9c | bellard | break;
|
2049 | 6af0bf9c | bellard | case 0x10: /* CP0 opcode */ |
2050 | 6af0bf9c | bellard | op1 = ((ctx->opcode >> 21) & 0x1F); |
2051 | 6af0bf9c | bellard | switch (op1) {
|
2052 | 6af0bf9c | bellard | case 0x00: |
2053 | 6af0bf9c | bellard | case 0x04: |
2054 | 6af0bf9c | bellard | gen_cp0(ctx, op1 | EXT_CP0, rt, rd); |
2055 | 6af0bf9c | bellard | break;
|
2056 | 6af0bf9c | bellard | default:
|
2057 | 4ad40f36 | bellard | gen_cp0(ctx, (ctx->opcode & 0x3F) | EXT_CP0, rt, rd);
|
2058 | 6af0bf9c | bellard | break;
|
2059 | 6af0bf9c | bellard | } |
2060 | 6af0bf9c | bellard | break;
|
2061 | 6af0bf9c | bellard | case 0x08 ... 0x0F: /* Arithmetic with immediate opcode */ |
2062 | 6af0bf9c | bellard | gen_arith_imm(ctx, op, rt, rs, imm); |
2063 | 6af0bf9c | bellard | break;
|
2064 | 6af0bf9c | bellard | case 0x02 ... 0x03: /* Jump */ |
2065 | 6af0bf9c | bellard | offset = (int32_t)(ctx->opcode & 0x03FFFFFF) << 2; |
2066 | 6af0bf9c | bellard | gen_compute_branch(ctx, op, rs, rt, offset); |
2067 | 6af0bf9c | bellard | return;
|
2068 | 6af0bf9c | bellard | case 0x04 ... 0x07: /* Branch */ |
2069 | 6af0bf9c | bellard | case 0x14 ... 0x17: |
2070 | 6af0bf9c | bellard | gen_compute_branch(ctx, op, rs, rt, imm << 2);
|
2071 | 6af0bf9c | bellard | return;
|
2072 | d796321b | bellard | case 0x20 ... 0x2E: /* Load and stores */ |
2073 | 6af0bf9c | bellard | case 0x30: |
2074 | 6af0bf9c | bellard | case 0x38: |
2075 | 6af0bf9c | bellard | gen_ldst(ctx, op, rt, rs, imm); |
2076 | 6af0bf9c | bellard | break;
|
2077 | 6af0bf9c | bellard | case 0x2F: /* Cache operation */ |
2078 | 6af0bf9c | bellard | /* Treat as a noop */
|
2079 | 6af0bf9c | bellard | break;
|
2080 | 6af0bf9c | bellard | case 0x33: /* Prefetch */ |
2081 | 6af0bf9c | bellard | /* Treat as a noop */
|
2082 | 6af0bf9c | bellard | break;
|
2083 | 6af0bf9c | bellard | case 0x3F: /* HACK */ |
2084 | 6af0bf9c | bellard | break;
|
2085 | 4ad40f36 | bellard | |
2086 | 4ad40f36 | bellard | /* Floating point. */
|
2087 | 4ad40f36 | bellard | case 0x31: /* LWC1 */ |
2088 | 4ad40f36 | bellard | case 0x35: /* LDC1 */ |
2089 | 4ad40f36 | bellard | case 0x39: /* SWC1 */ |
2090 | 4ad40f36 | bellard | case 0x3D: /* SDC1 */ |
2091 | 6ea83fed | bellard | #if defined(MIPS_USES_FPU)
|
2092 | 417f38f0 | pbrook | save_cpu_state(ctx, 1);
|
2093 | 6ea83fed | bellard | gen_op_cp1_enabled(); |
2094 | 6ea83fed | bellard | gen_flt_ldst(ctx, op, rt, rs, imm); |
2095 | 6ea83fed | bellard | #else
|
2096 | 6ea83fed | bellard | generate_exception_err(ctx, EXCP_CpU, 1);
|
2097 | 6ea83fed | bellard | #endif
|
2098 | 6ea83fed | bellard | break;
|
2099 | 6ea83fed | bellard | |
2100 | 4ad40f36 | bellard | case 0x11: /* CP1 opcode */ |
2101 | 6af0bf9c | bellard | #if defined(MIPS_USES_FPU)
|
2102 | 417f38f0 | pbrook | save_cpu_state(ctx, 1);
|
2103 | 6ea83fed | bellard | gen_op_cp1_enabled(); |
2104 | 6ea83fed | bellard | op1 = ((ctx->opcode >> 21) & 0x1F); |
2105 | 6ea83fed | bellard | switch (op1) {
|
2106 | 6ea83fed | bellard | case 0x00: /* mfc1 */ |
2107 | 6ea83fed | bellard | case 0x02: /* cfc1 */ |
2108 | 6ea83fed | bellard | case 0x04: /* mtc1 */ |
2109 | 6ea83fed | bellard | case 0x06: /* ctc1 */ |
2110 | 6ea83fed | bellard | gen_cp1(ctx, op1 | EXT_CP1, rt, rd); |
2111 | 6ea83fed | bellard | break;
|
2112 | 6ea83fed | bellard | case 0x08: /* bc */ |
2113 | 6ea83fed | bellard | gen_compute_branch1(ctx, rt, imm << 2);
|
2114 | 6ea83fed | bellard | return;
|
2115 | 6ea83fed | bellard | case 0x10: /* 16: fmt=single fp */ |
2116 | 6ea83fed | bellard | case 0x11: /* 17: fmt=double fp */ |
2117 | 6ea83fed | bellard | case 0x14: /* 20: fmt=32bit fixed */ |
2118 | 6ea83fed | bellard | case 0x15: /* 21: fmt=64bit fixed */ |
2119 | 6ea83fed | bellard | gen_farith(ctx, op1, rt, rd, sa, ctx->opcode & 0x3f);
|
2120 | 6ea83fed | bellard | break;
|
2121 | 6ea83fed | bellard | default:
|
2122 | 6ea83fed | bellard | generate_exception_err(ctx, EXCP_RI, 1);
|
2123 | 6ea83fed | bellard | break;
|
2124 | 6ea83fed | bellard | } |
2125 | 6ea83fed | bellard | break;
|
2126 | 4ad40f36 | bellard | #else
|
2127 | 4ad40f36 | bellard | generate_exception_err(ctx, EXCP_CpU, 1);
|
2128 | 6af0bf9c | bellard | #endif
|
2129 | 4ad40f36 | bellard | break;
|
2130 | 4ad40f36 | bellard | |
2131 | 4ad40f36 | bellard | /* COP2. */
|
2132 | 4ad40f36 | bellard | case 0x32: /* LWC2 */ |
2133 | 4ad40f36 | bellard | case 0x36: /* LDC2 */ |
2134 | 4ad40f36 | bellard | case 0x3A: /* SWC2 */ |
2135 | 4ad40f36 | bellard | case 0x3E: /* SDC2 */ |
2136 | 6af0bf9c | bellard | case 0x12: /* CP2 opcode */ |
2137 | 6af0bf9c | bellard | /* Not implemented */
|
2138 | 4ad40f36 | bellard | generate_exception_err(ctx, EXCP_CpU, 2);
|
2139 | 4ad40f36 | bellard | break;
|
2140 | 4ad40f36 | bellard | |
2141 | 6af0bf9c | bellard | case 0x13: /* CP3 opcode */ |
2142 | 6af0bf9c | bellard | /* Not implemented */
|
2143 | 4ad40f36 | bellard | generate_exception_err(ctx, EXCP_CpU, 3);
|
2144 | 4ad40f36 | bellard | break;
|
2145 | 4ad40f36 | bellard | |
2146 | 6af0bf9c | bellard | #if defined (TARGET_MIPS64)
|
2147 | 6af0bf9c | bellard | case 0x18 ... 0x1B: |
2148 | 6af0bf9c | bellard | case 0x27: |
2149 | 6af0bf9c | bellard | case 0x34: |
2150 | 6af0bf9c | bellard | case 0x37: |
2151 | 6af0bf9c | bellard | /* MIPS64 opcodes */
|
2152 | 6af0bf9c | bellard | #endif
|
2153 | 6af0bf9c | bellard | #if defined (MIPS_HAS_JALX)
|
2154 | 6af0bf9c | bellard | case 0x1D: |
2155 | 6af0bf9c | bellard | /* JALX: not implemented */
|
2156 | 6af0bf9c | bellard | #endif
|
2157 | 6af0bf9c | bellard | case 0x1E: |
2158 | 6af0bf9c | bellard | /* ASE specific */
|
2159 | 6af0bf9c | bellard | default: /* Invalid */ |
2160 | 6af0bf9c | bellard | MIPS_INVAL("");
|
2161 | 6af0bf9c | bellard | generate_exception(ctx, EXCP_RI); |
2162 | 6af0bf9c | bellard | break;
|
2163 | 6af0bf9c | bellard | } |
2164 | 4ad40f36 | bellard | if (ctx->hflags & MIPS_HFLAG_BMASK) {
|
2165 | 6af0bf9c | bellard | int hflags = ctx->hflags;
|
2166 | 6af0bf9c | bellard | /* Branches completion */
|
2167 | 4ad40f36 | bellard | ctx->hflags &= ~MIPS_HFLAG_BMASK; |
2168 | 6af0bf9c | bellard | ctx->bstate = BS_BRANCH; |
2169 | 6af0bf9c | bellard | save_cpu_state(ctx, 0);
|
2170 | 6af0bf9c | bellard | switch (hflags & MIPS_HFLAG_BMASK) {
|
2171 | 6af0bf9c | bellard | case MIPS_HFLAG_B:
|
2172 | 6af0bf9c | bellard | /* unconditional branch */
|
2173 | 6af0bf9c | bellard | MIPS_DEBUG("unconditional branch");
|
2174 | 6e256c93 | bellard | gen_goto_tb(ctx, 0, ctx->btarget);
|
2175 | 6af0bf9c | bellard | break;
|
2176 | 6af0bf9c | bellard | case MIPS_HFLAG_BL:
|
2177 | 6af0bf9c | bellard | /* blikely taken case */
|
2178 | 6af0bf9c | bellard | MIPS_DEBUG("blikely branch taken");
|
2179 | 6e256c93 | bellard | gen_goto_tb(ctx, 0, ctx->btarget);
|
2180 | 6af0bf9c | bellard | break;
|
2181 | 6af0bf9c | bellard | case MIPS_HFLAG_BC:
|
2182 | 6af0bf9c | bellard | /* Conditional branch */
|
2183 | 6af0bf9c | bellard | MIPS_DEBUG("conditional branch");
|
2184 | c53be334 | bellard | { |
2185 | c53be334 | bellard | int l1;
|
2186 | c53be334 | bellard | l1 = gen_new_label(); |
2187 | c53be334 | bellard | gen_op_jnz_T2(l1); |
2188 | 6e256c93 | bellard | gen_goto_tb(ctx, 1, ctx->pc + 4); |
2189 | eeef26cd | bellard | gen_set_label(l1); |
2190 | eeef26cd | bellard | gen_goto_tb(ctx, 0, ctx->btarget);
|
2191 | c53be334 | bellard | } |
2192 | 6af0bf9c | bellard | break;
|
2193 | 6af0bf9c | bellard | case MIPS_HFLAG_BR:
|
2194 | 6af0bf9c | bellard | /* unconditional branch to register */
|
2195 | 6af0bf9c | bellard | MIPS_DEBUG("branch to register");
|
2196 | 6af0bf9c | bellard | gen_op_breg(); |
2197 | 6af0bf9c | bellard | break;
|
2198 | 6af0bf9c | bellard | default:
|
2199 | 6af0bf9c | bellard | MIPS_DEBUG("unknown branch");
|
2200 | 6af0bf9c | bellard | break;
|
2201 | 6af0bf9c | bellard | } |
2202 | 6af0bf9c | bellard | } |
2203 | 6af0bf9c | bellard | } |
2204 | 6af0bf9c | bellard | |
2205 | 6af0bf9c | bellard | int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
|
2206 | 6af0bf9c | bellard | int search_pc)
|
2207 | 6af0bf9c | bellard | { |
2208 | 6af0bf9c | bellard | DisasContext ctx, *ctxp = &ctx; |
2209 | 6af0bf9c | bellard | target_ulong pc_start; |
2210 | 6af0bf9c | bellard | uint16_t *gen_opc_end; |
2211 | 6af0bf9c | bellard | int j, lj = -1; |
2212 | 6af0bf9c | bellard | |
2213 | 4ad40f36 | bellard | if (search_pc && loglevel)
|
2214 | 6ea83fed | bellard | fprintf (logfile, "search pc %d\n", search_pc);
|
2215 | 4ad40f36 | bellard | |
2216 | 6af0bf9c | bellard | pc_start = tb->pc; |
2217 | 6af0bf9c | bellard | gen_opc_ptr = gen_opc_buf; |
2218 | 6af0bf9c | bellard | gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
2219 | 6af0bf9c | bellard | gen_opparam_ptr = gen_opparam_buf; |
2220 | c53be334 | bellard | nb_gen_labels = 0;
|
2221 | 6af0bf9c | bellard | ctx.pc = pc_start; |
2222 | 4ad40f36 | bellard | ctx.saved_pc = -1;
|
2223 | 6af0bf9c | bellard | ctx.tb = tb; |
2224 | 6af0bf9c | bellard | ctx.bstate = BS_NONE; |
2225 | 4ad40f36 | bellard | /* Restore delay slot state from the tb context. */
|
2226 | 4ad40f36 | bellard | ctx.hflags = tb->flags; |
2227 | 6af0bf9c | bellard | ctx.saved_hflags = ctx.hflags; |
2228 | 6af0bf9c | bellard | if (ctx.hflags & MIPS_HFLAG_BR) {
|
2229 | 6af0bf9c | bellard | gen_op_restore_breg_target(); |
2230 | 6af0bf9c | bellard | } else if (ctx.hflags & MIPS_HFLAG_B) { |
2231 | 6af0bf9c | bellard | ctx.btarget = env->btarget; |
2232 | 6af0bf9c | bellard | } else if (ctx.hflags & MIPS_HFLAG_BMASK) { |
2233 | 6af0bf9c | bellard | /* If we are in the delay slot of a conditional branch,
|
2234 | 6af0bf9c | bellard | * restore the branch condition from env->bcond to T2
|
2235 | 6af0bf9c | bellard | */
|
2236 | 6af0bf9c | bellard | ctx.btarget = env->btarget; |
2237 | 6af0bf9c | bellard | gen_op_restore_bcond(); |
2238 | 6af0bf9c | bellard | } |
2239 | 6af0bf9c | bellard | #if defined(CONFIG_USER_ONLY)
|
2240 | 6af0bf9c | bellard | ctx.mem_idx = 0;
|
2241 | 6af0bf9c | bellard | #else
|
2242 | 3d9fb9fe | bellard | ctx.mem_idx = !((ctx.hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM); |
2243 | 6af0bf9c | bellard | #endif
|
2244 | 6af0bf9c | bellard | ctx.CP0_Status = env->CP0_Status; |
2245 | 6af0bf9c | bellard | #ifdef DEBUG_DISAS
|
2246 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_CPU) {
|
2247 | 6af0bf9c | bellard | fprintf(logfile, "------------------------------------------------\n");
|
2248 | 4ad40f36 | bellard | /* FIXME: This may print out stale hflags from env... */
|
2249 | 6af0bf9c | bellard | cpu_dump_state(env, logfile, fprintf, 0);
|
2250 | 6af0bf9c | bellard | } |
2251 | 6af0bf9c | bellard | #endif
|
2252 | 6af0bf9c | bellard | #if defined MIPS_DEBUG_DISAS
|
2253 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_IN_ASM)
|
2254 | 4ad40f36 | bellard | fprintf(logfile, "\ntb %p super %d cond %04x\n",
|
2255 | 4ad40f36 | bellard | tb, ctx.mem_idx, ctx.hflags); |
2256 | 6af0bf9c | bellard | #endif
|
2257 | 6af0bf9c | bellard | while (ctx.bstate == BS_NONE && gen_opc_ptr < gen_opc_end) {
|
2258 | 4ad40f36 | bellard | if (env->nb_breakpoints > 0) { |
2259 | 4ad40f36 | bellard | for(j = 0; j < env->nb_breakpoints; j++) { |
2260 | 4ad40f36 | bellard | if (env->breakpoints[j] == ctx.pc) {
|
2261 | 4ad40f36 | bellard | save_cpu_state(ctxp, 1);
|
2262 | 4ad40f36 | bellard | ctx.bstate = BS_BRANCH; |
2263 | 4ad40f36 | bellard | gen_op_debug(); |
2264 | 4ad40f36 | bellard | goto done_generating;
|
2265 | 4ad40f36 | bellard | } |
2266 | 4ad40f36 | bellard | } |
2267 | 4ad40f36 | bellard | } |
2268 | 4ad40f36 | bellard | |
2269 | 6af0bf9c | bellard | if (search_pc) {
|
2270 | 6af0bf9c | bellard | j = gen_opc_ptr - gen_opc_buf; |
2271 | 6af0bf9c | bellard | if (lj < j) {
|
2272 | 6af0bf9c | bellard | lj++; |
2273 | 6af0bf9c | bellard | while (lj < j)
|
2274 | 6af0bf9c | bellard | gen_opc_instr_start[lj++] = 0;
|
2275 | 6af0bf9c | bellard | } |
2276 | 4ad40f36 | bellard | gen_opc_pc[lj] = ctx.pc; |
2277 | 4ad40f36 | bellard | gen_opc_hflags[lj] = ctx.hflags & MIPS_HFLAG_BMASK; |
2278 | 4ad40f36 | bellard | gen_opc_instr_start[lj] = 1;
|
2279 | 6af0bf9c | bellard | } |
2280 | 6af0bf9c | bellard | ctx.opcode = ldl_code(ctx.pc); |
2281 | 6af0bf9c | bellard | decode_opc(&ctx); |
2282 | 6af0bf9c | bellard | ctx.pc += 4;
|
2283 | 4ad40f36 | bellard | |
2284 | 4ad40f36 | bellard | if (env->singlestep_enabled)
|
2285 | 4ad40f36 | bellard | break;
|
2286 | 4ad40f36 | bellard | |
2287 | 6af0bf9c | bellard | if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) |
2288 | 6af0bf9c | bellard | break;
|
2289 | 4ad40f36 | bellard | |
2290 | 6af0bf9c | bellard | #if defined (MIPS_SINGLE_STEP)
|
2291 | 6af0bf9c | bellard | break;
|
2292 | 6af0bf9c | bellard | #endif
|
2293 | 6af0bf9c | bellard | } |
2294 | 4ad40f36 | bellard | if (env->singlestep_enabled) {
|
2295 | 4ad40f36 | bellard | save_cpu_state(ctxp, ctx.bstate == BS_NONE); |
2296 | 4ad40f36 | bellard | gen_op_debug(); |
2297 | 4ad40f36 | bellard | goto done_generating;
|
2298 | 4ad40f36 | bellard | } |
2299 | 4ad40f36 | bellard | else if (ctx.bstate != BS_BRANCH && ctx.bstate != BS_EXCP) { |
2300 | 6af0bf9c | bellard | save_cpu_state(ctxp, 0);
|
2301 | 6e256c93 | bellard | gen_goto_tb(&ctx, 0, ctx.pc);
|
2302 | 6af0bf9c | bellard | } |
2303 | 6af0bf9c | bellard | gen_op_reset_T0(); |
2304 | 6af0bf9c | bellard | /* Generate the return instruction */
|
2305 | 6af0bf9c | bellard | gen_op_exit_tb(); |
2306 | 4ad40f36 | bellard | done_generating:
|
2307 | 6af0bf9c | bellard | *gen_opc_ptr = INDEX_op_end; |
2308 | 6af0bf9c | bellard | if (search_pc) {
|
2309 | 6af0bf9c | bellard | j = gen_opc_ptr - gen_opc_buf; |
2310 | 6af0bf9c | bellard | lj++; |
2311 | 6af0bf9c | bellard | while (lj <= j)
|
2312 | 6af0bf9c | bellard | gen_opc_instr_start[lj++] = 0;
|
2313 | 6af0bf9c | bellard | tb->size = 0;
|
2314 | 6af0bf9c | bellard | } else {
|
2315 | 6af0bf9c | bellard | tb->size = ctx.pc - pc_start; |
2316 | 6af0bf9c | bellard | } |
2317 | 6af0bf9c | bellard | #ifdef DEBUG_DISAS
|
2318 | 6af0bf9c | bellard | #if defined MIPS_DEBUG_DISAS
|
2319 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_IN_ASM)
|
2320 | 6af0bf9c | bellard | fprintf(logfile, "\n");
|
2321 | 6af0bf9c | bellard | #endif
|
2322 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_IN_ASM) {
|
2323 | 6af0bf9c | bellard | fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
|
2324 | 6ea83fed | bellard | target_disas(logfile, pc_start, ctx.pc - pc_start, 0);
|
2325 | 6af0bf9c | bellard | fprintf(logfile, "\n");
|
2326 | 6af0bf9c | bellard | } |
2327 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_OP) {
|
2328 | 6af0bf9c | bellard | fprintf(logfile, "OP:\n");
|
2329 | 6af0bf9c | bellard | dump_ops(gen_opc_buf, gen_opparam_buf); |
2330 | 6af0bf9c | bellard | fprintf(logfile, "\n");
|
2331 | 6af0bf9c | bellard | } |
2332 | 6af0bf9c | bellard | if (loglevel & CPU_LOG_TB_CPU) {
|
2333 | 6af0bf9c | bellard | fprintf(logfile, "---------------- %d %08x\n", ctx.bstate, ctx.hflags);
|
2334 | 6af0bf9c | bellard | } |
2335 | 6af0bf9c | bellard | #endif
|
2336 | 6af0bf9c | bellard | |
2337 | 6af0bf9c | bellard | return 0; |
2338 | 6af0bf9c | bellard | } |
2339 | 6af0bf9c | bellard | |
2340 | 6af0bf9c | bellard | int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) |
2341 | 6af0bf9c | bellard | { |
2342 | 6af0bf9c | bellard | return gen_intermediate_code_internal(env, tb, 0); |
2343 | 6af0bf9c | bellard | } |
2344 | 6af0bf9c | bellard | |
2345 | 6af0bf9c | bellard | int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) |
2346 | 6af0bf9c | bellard | { |
2347 | 6af0bf9c | bellard | return gen_intermediate_code_internal(env, tb, 1); |
2348 | 6af0bf9c | bellard | } |
2349 | 6af0bf9c | bellard | |
2350 | 6ea83fed | bellard | #ifdef MIPS_USES_FPU
|
2351 | 6ea83fed | bellard | void fpu_dump_state(CPUState *env, FILE *f,
|
2352 | 6ea83fed | bellard | int (*fpu_fprintf)(FILE *f, const char *fmt, ...), |
2353 | 6ea83fed | bellard | int flags)
|
2354 | 6ea83fed | bellard | { |
2355 | 6ea83fed | bellard | int i;
|
2356 | 6ea83fed | bellard | |
2357 | 6ea83fed | bellard | # define printfpr(fp) do { \ |
2358 | 6ea83fed | bellard | fpu_fprintf(f, "w:%08x d:%08lx%08lx fd:%g fs:%g\n", \
|
2359 | 6ea83fed | bellard | (fp)->w[FP_ENDIAN_IDX], (fp)->w[0], (fp)->w[1], (fp)->fd, (fp)->fs[FP_ENDIAN_IDX]); \ |
2360 | 6ea83fed | bellard | } while(0) |
2361 | 6ea83fed | bellard | |
2362 | 6ea83fed | bellard | fpu_fprintf(f, "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d\n",
|
2363 | 6ea83fed | bellard | env->fcr0, env->fcr31, |
2364 | 6ea83fed | bellard | (env->CP0_Status & (1<<CP0St_FR)) != 0); |
2365 | 6ea83fed | bellard | fpu_fprintf(f, "FT0: "); printfpr(&env->ft0);
|
2366 | 6ea83fed | bellard | fpu_fprintf(f, "FT1: "); printfpr(&env->ft1);
|
2367 | 6ea83fed | bellard | fpu_fprintf(f, "FT2: "); printfpr(&env->ft2);
|
2368 | 6ea83fed | bellard | for(i=0; i < 32; i+=2) { |
2369 | 6ea83fed | bellard | fpu_fprintf(f, "f%02d: ", i);
|
2370 | 6ea83fed | bellard | printfpr(FPR(env, i)); |
2371 | 6ea83fed | bellard | } |
2372 | 6ea83fed | bellard | |
2373 | 6ea83fed | bellard | #undef printfpr
|
2374 | 6ea83fed | bellard | } |
2375 | 6ea83fed | bellard | |
2376 | 6ea83fed | bellard | void dump_fpu(CPUState *env)
|
2377 | 6ea83fed | bellard | { |
2378 | 6ea83fed | bellard | if (loglevel) {
|
2379 | 6ea83fed | bellard | fprintf(logfile, "pc=0x%08x HI=0x%08x LO=0x%08x ds %04x %08x %d\n",
|
2380 | 6ea83fed | bellard | env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond); |
2381 | 6ea83fed | bellard | fpu_dump_state(env, logfile, fprintf, 0);
|
2382 | 6ea83fed | bellard | } |
2383 | 6ea83fed | bellard | } |
2384 | 6ea83fed | bellard | #endif /* MIPS_USES_FPU */ |
2385 | 6ea83fed | bellard | |
2386 | 6af0bf9c | bellard | void cpu_dump_state (CPUState *env, FILE *f,
|
2387 | 6af0bf9c | bellard | int (*cpu_fprintf)(FILE *f, const char *fmt, ...), |
2388 | 6af0bf9c | bellard | int flags)
|
2389 | 6af0bf9c | bellard | { |
2390 | 568b600d | bellard | uint32_t c0_status; |
2391 | 6af0bf9c | bellard | int i;
|
2392 | 6af0bf9c | bellard | |
2393 | 6af0bf9c | bellard | cpu_fprintf(f, "pc=0x%08x HI=0x%08x LO=0x%08x ds %04x %08x %d\n",
|
2394 | 6af0bf9c | bellard | env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond); |
2395 | 6af0bf9c | bellard | for (i = 0; i < 32; i++) { |
2396 | 6af0bf9c | bellard | if ((i & 3) == 0) |
2397 | 6af0bf9c | bellard | cpu_fprintf(f, "GPR%02d:", i);
|
2398 | 6af0bf9c | bellard | cpu_fprintf(f, " %s %08x", regnames[i], env->gpr[i]);
|
2399 | 6af0bf9c | bellard | if ((i & 3) == 3) |
2400 | 6af0bf9c | bellard | cpu_fprintf(f, "\n");
|
2401 | 6af0bf9c | bellard | } |
2402 | 568b600d | bellard | |
2403 | 568b600d | bellard | c0_status = env->CP0_Status; |
2404 | 568b600d | bellard | if (env->hflags & MIPS_HFLAG_UM)
|
2405 | 568b600d | bellard | c0_status |= (1 << CP0St_UM);
|
2406 | 568b600d | bellard | if (env->hflags & MIPS_HFLAG_ERL)
|
2407 | 568b600d | bellard | c0_status |= (1 << CP0St_ERL);
|
2408 | 568b600d | bellard | if (env->hflags & MIPS_HFLAG_EXL)
|
2409 | 568b600d | bellard | c0_status |= (1 << CP0St_EXL);
|
2410 | 568b600d | bellard | |
2411 | 6af0bf9c | bellard | cpu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x%08x\n",
|
2412 | 568b600d | bellard | c0_status, env->CP0_Cause, env->CP0_EPC); |
2413 | 6af0bf9c | bellard | cpu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x%08x\n",
|
2414 | 6af0bf9c | bellard | env->CP0_Config0, env->CP0_Config1, env->CP0_LLAddr); |
2415 | 6ea83fed | bellard | #ifdef MIPS_USES_FPU
|
2416 | 6ea83fed | bellard | fpu_dump_state(env, f, cpu_fprintf, flags); |
2417 | 6ea83fed | bellard | #endif
|
2418 | 6af0bf9c | bellard | } |
2419 | 6af0bf9c | bellard | |
2420 | 6af0bf9c | bellard | CPUMIPSState *cpu_mips_init (void)
|
2421 | 6af0bf9c | bellard | { |
2422 | 6af0bf9c | bellard | CPUMIPSState *env; |
2423 | 6af0bf9c | bellard | |
2424 | 6af0bf9c | bellard | env = qemu_mallocz(sizeof(CPUMIPSState));
|
2425 | 6af0bf9c | bellard | if (!env)
|
2426 | 6af0bf9c | bellard | return NULL; |
2427 | 173d6cfe | bellard | cpu_exec_init(env); |
2428 | 6ae81775 | ths | cpu_reset(env); |
2429 | 6ae81775 | ths | return env;
|
2430 | 6ae81775 | ths | } |
2431 | 6ae81775 | ths | |
2432 | 6ae81775 | ths | void cpu_reset (CPUMIPSState *env)
|
2433 | 6ae81775 | ths | { |
2434 | 6ae81775 | ths | memset(env, 0, offsetof(CPUMIPSState, breakpoints));
|
2435 | 6ae81775 | ths | |
2436 | 6af0bf9c | bellard | tlb_flush(env, 1);
|
2437 | 6ae81775 | ths | |
2438 | 6af0bf9c | bellard | /* Minimal init */
|
2439 | 6af0bf9c | bellard | env->PC = 0xBFC00000;
|
2440 | 6af0bf9c | bellard | #if defined (MIPS_USES_R4K_TLB)
|
2441 | 6af0bf9c | bellard | env->CP0_random = MIPS_TLB_NB - 1;
|
2442 | 814b9a47 | ths | env->tlb_in_use = MIPS_TLB_NB; |
2443 | 6af0bf9c | bellard | #endif
|
2444 | 6af0bf9c | bellard | env->CP0_Wired = 0;
|
2445 | 6af0bf9c | bellard | env->CP0_Config0 = MIPS_CONFIG0; |
2446 | 6af0bf9c | bellard | #if defined (MIPS_CONFIG1)
|
2447 | 6af0bf9c | bellard | env->CP0_Config1 = MIPS_CONFIG1; |
2448 | 6af0bf9c | bellard | #endif
|
2449 | 6af0bf9c | bellard | #if defined (MIPS_CONFIG2)
|
2450 | 6af0bf9c | bellard | env->CP0_Config2 = MIPS_CONFIG2; |
2451 | 6af0bf9c | bellard | #endif
|
2452 | 6af0bf9c | bellard | #if defined (MIPS_CONFIG3)
|
2453 | 6af0bf9c | bellard | env->CP0_Config3 = MIPS_CONFIG3; |
2454 | 6af0bf9c | bellard | #endif
|
2455 | 6af0bf9c | bellard | env->CP0_Status = (1 << CP0St_CU0) | (1 << CP0St_BEV); |
2456 | 6af0bf9c | bellard | env->CP0_WatchLo = 0;
|
2457 | 6af0bf9c | bellard | env->hflags = MIPS_HFLAG_ERL; |
2458 | 6af0bf9c | bellard | /* Count register increments in debug mode, EJTAG version 1 */
|
2459 | 6af0bf9c | bellard | env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER); |
2460 | 6af0bf9c | bellard | env->CP0_PRid = MIPS_CPU; |
2461 | 6af0bf9c | bellard | env->exception_index = EXCP_NONE; |
2462 | eeef26cd | bellard | #if defined(CONFIG_USER_ONLY)
|
2463 | eeef26cd | bellard | env->hflags |= MIPS_HFLAG_UM; |
2464 | eeef26cd | bellard | #endif
|
2465 | 6ea83fed | bellard | #ifdef MIPS_USES_FPU
|
2466 | 6ea83fed | bellard | env->fcr0 = MIPS_FCR0; |
2467 | 6ea83fed | bellard | #endif
|
2468 | 6af0bf9c | bellard | } |