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| 1 | 2c0262af | bellard | /*
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| 2 | 2c0262af | bellard | * ARM translation
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| 3 | 2c0262af | bellard | *
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| 4 | 2c0262af | bellard | * Copyright (c) 2003 Fabrice Bellard
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| 5 | b7bcbe95 | bellard | * Copyright (c) 2005 CodeSourcery, LLC
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| 6 | 2c0262af | bellard | *
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| 7 | 2c0262af | bellard | * This library is free software; you can redistribute it and/or
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| 8 | 2c0262af | bellard | * modify it under the terms of the GNU Lesser General Public
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| 9 | 2c0262af | bellard | * License as published by the Free Software Foundation; either
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| 10 | 2c0262af | bellard | * version 2 of the License, or (at your option) any later version.
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| 11 | 2c0262af | bellard | *
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| 12 | 2c0262af | bellard | * This library is distributed in the hope that it will be useful,
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| 13 | 2c0262af | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | 2c0262af | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 15 | 2c0262af | bellard | * Lesser General Public License for more details.
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| 16 | 2c0262af | bellard | *
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| 17 | 2c0262af | bellard | * You should have received a copy of the GNU Lesser General Public
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| 18 | 2c0262af | bellard | * License along with this library; if not, write to the Free Software
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| 19 | 2c0262af | bellard | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 20 | 2c0262af | bellard | */
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| 21 | 2c0262af | bellard | #include <stdarg.h> |
| 22 | 2c0262af | bellard | #include <stdlib.h> |
| 23 | 2c0262af | bellard | #include <stdio.h> |
| 24 | 2c0262af | bellard | #include <string.h> |
| 25 | 2c0262af | bellard | #include <inttypes.h> |
| 26 | 2c0262af | bellard | |
| 27 | 2c0262af | bellard | #include "cpu.h" |
| 28 | 2c0262af | bellard | #include "exec-all.h" |
| 29 | 2c0262af | bellard | #include "disas.h" |
| 30 | 2c0262af | bellard | |
| 31 | b5ff1b31 | bellard | #define ENABLE_ARCH_5J 0 |
| 32 | b5ff1b31 | bellard | #define ENABLE_ARCH_6 1 |
| 33 | b5ff1b31 | bellard | #define ENABLE_ARCH_6T2 1 |
| 34 | b5ff1b31 | bellard | |
| 35 | b5ff1b31 | bellard | #define ARCH(x) if (!ENABLE_ARCH_##x) goto illegal_op; |
| 36 | b5ff1b31 | bellard | |
| 37 | 2c0262af | bellard | /* internal defines */
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| 38 | 2c0262af | bellard | typedef struct DisasContext { |
| 39 | 0fa85d43 | bellard | target_ulong pc; |
| 40 | 2c0262af | bellard | int is_jmp;
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| 41 | e50e6a20 | bellard | /* Nonzero if this instruction has been conditionally skipped. */
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| 42 | e50e6a20 | bellard | int condjmp;
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| 43 | e50e6a20 | bellard | /* The label that will be jumped to when the instruction is skipped. */
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| 44 | e50e6a20 | bellard | int condlabel;
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| 45 | 2c0262af | bellard | struct TranslationBlock *tb;
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| 46 | 8aaca4c0 | bellard | int singlestep_enabled;
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| 47 | 5899f386 | bellard | int thumb;
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| 48 | 6658ffb8 | pbrook | int is_mem;
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| 49 | b5ff1b31 | bellard | #if !defined(CONFIG_USER_ONLY)
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| 50 | b5ff1b31 | bellard | int user;
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| 51 | b5ff1b31 | bellard | #endif
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| 52 | 2c0262af | bellard | } DisasContext; |
| 53 | 2c0262af | bellard | |
| 54 | b5ff1b31 | bellard | #if defined(CONFIG_USER_ONLY)
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| 55 | b5ff1b31 | bellard | #define IS_USER(s) 1 |
| 56 | b5ff1b31 | bellard | #else
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| 57 | b5ff1b31 | bellard | #define IS_USER(s) (s->user)
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| 58 | b5ff1b31 | bellard | #endif
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| 59 | b5ff1b31 | bellard | |
| 60 | 2c0262af | bellard | #define DISAS_JUMP_NEXT 4 |
| 61 | 2c0262af | bellard | |
| 62 | c53be334 | bellard | #ifdef USE_DIRECT_JUMP
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| 63 | c53be334 | bellard | #define TBPARAM(x)
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| 64 | c53be334 | bellard | #else
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| 65 | c53be334 | bellard | #define TBPARAM(x) (long)(x) |
| 66 | c53be334 | bellard | #endif
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| 67 | c53be334 | bellard | |
| 68 | 2c0262af | bellard | /* XXX: move that elsewhere */
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| 69 | 2c0262af | bellard | static uint16_t *gen_opc_ptr;
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| 70 | 2c0262af | bellard | static uint32_t *gen_opparam_ptr;
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| 71 | 2c0262af | bellard | extern FILE *logfile;
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| 72 | 2c0262af | bellard | extern int loglevel; |
| 73 | 2c0262af | bellard | |
| 74 | 2c0262af | bellard | enum {
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| 75 | 2c0262af | bellard | #define DEF(s, n, copy_size) INDEX_op_ ## s, |
| 76 | 2c0262af | bellard | #include "opc.h" |
| 77 | 2c0262af | bellard | #undef DEF
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| 78 | 2c0262af | bellard | NB_OPS, |
| 79 | 2c0262af | bellard | }; |
| 80 | 2c0262af | bellard | |
| 81 | 2c0262af | bellard | #include "gen-op.h" |
| 82 | 2c0262af | bellard | |
| 83 | e50e6a20 | bellard | static GenOpFunc1 *gen_test_cc[14] = { |
| 84 | 2c0262af | bellard | gen_op_test_eq, |
| 85 | 2c0262af | bellard | gen_op_test_ne, |
| 86 | 2c0262af | bellard | gen_op_test_cs, |
| 87 | 2c0262af | bellard | gen_op_test_cc, |
| 88 | 2c0262af | bellard | gen_op_test_mi, |
| 89 | 2c0262af | bellard | gen_op_test_pl, |
| 90 | 2c0262af | bellard | gen_op_test_vs, |
| 91 | 2c0262af | bellard | gen_op_test_vc, |
| 92 | 2c0262af | bellard | gen_op_test_hi, |
| 93 | 2c0262af | bellard | gen_op_test_ls, |
| 94 | 2c0262af | bellard | gen_op_test_ge, |
| 95 | 2c0262af | bellard | gen_op_test_lt, |
| 96 | 2c0262af | bellard | gen_op_test_gt, |
| 97 | 2c0262af | bellard | gen_op_test_le, |
| 98 | 2c0262af | bellard | }; |
| 99 | 2c0262af | bellard | |
| 100 | 2c0262af | bellard | const uint8_t table_logic_cc[16] = { |
| 101 | 2c0262af | bellard | 1, /* and */ |
| 102 | 2c0262af | bellard | 1, /* xor */ |
| 103 | 2c0262af | bellard | 0, /* sub */ |
| 104 | 2c0262af | bellard | 0, /* rsb */ |
| 105 | 2c0262af | bellard | 0, /* add */ |
| 106 | 2c0262af | bellard | 0, /* adc */ |
| 107 | 2c0262af | bellard | 0, /* sbc */ |
| 108 | 2c0262af | bellard | 0, /* rsc */ |
| 109 | 2c0262af | bellard | 1, /* andl */ |
| 110 | 2c0262af | bellard | 1, /* xorl */ |
| 111 | 2c0262af | bellard | 0, /* cmp */ |
| 112 | 2c0262af | bellard | 0, /* cmn */ |
| 113 | 2c0262af | bellard | 1, /* orr */ |
| 114 | 2c0262af | bellard | 1, /* mov */ |
| 115 | 2c0262af | bellard | 1, /* bic */ |
| 116 | 2c0262af | bellard | 1, /* mvn */ |
| 117 | 2c0262af | bellard | }; |
| 118 | 2c0262af | bellard | |
| 119 | 2c0262af | bellard | static GenOpFunc1 *gen_shift_T1_im[4] = { |
| 120 | 2c0262af | bellard | gen_op_shll_T1_im, |
| 121 | 2c0262af | bellard | gen_op_shrl_T1_im, |
| 122 | 2c0262af | bellard | gen_op_sarl_T1_im, |
| 123 | 2c0262af | bellard | gen_op_rorl_T1_im, |
| 124 | 2c0262af | bellard | }; |
| 125 | 2c0262af | bellard | |
| 126 | 1e8d4eec | bellard | static GenOpFunc *gen_shift_T1_0[4] = { |
| 127 | 1e8d4eec | bellard | NULL,
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| 128 | 1e8d4eec | bellard | gen_op_shrl_T1_0, |
| 129 | 1e8d4eec | bellard | gen_op_sarl_T1_0, |
| 130 | 1e8d4eec | bellard | gen_op_rrxl_T1, |
| 131 | 1e8d4eec | bellard | }; |
| 132 | 1e8d4eec | bellard | |
| 133 | 2c0262af | bellard | static GenOpFunc1 *gen_shift_T2_im[4] = { |
| 134 | 2c0262af | bellard | gen_op_shll_T2_im, |
| 135 | 2c0262af | bellard | gen_op_shrl_T2_im, |
| 136 | 2c0262af | bellard | gen_op_sarl_T2_im, |
| 137 | 2c0262af | bellard | gen_op_rorl_T2_im, |
| 138 | 2c0262af | bellard | }; |
| 139 | 2c0262af | bellard | |
| 140 | 1e8d4eec | bellard | static GenOpFunc *gen_shift_T2_0[4] = { |
| 141 | 1e8d4eec | bellard | NULL,
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| 142 | 1e8d4eec | bellard | gen_op_shrl_T2_0, |
| 143 | 1e8d4eec | bellard | gen_op_sarl_T2_0, |
| 144 | 1e8d4eec | bellard | gen_op_rrxl_T2, |
| 145 | 1e8d4eec | bellard | }; |
| 146 | 1e8d4eec | bellard | |
| 147 | 2c0262af | bellard | static GenOpFunc1 *gen_shift_T1_im_cc[4] = { |
| 148 | 2c0262af | bellard | gen_op_shll_T1_im_cc, |
| 149 | 2c0262af | bellard | gen_op_shrl_T1_im_cc, |
| 150 | 2c0262af | bellard | gen_op_sarl_T1_im_cc, |
| 151 | 2c0262af | bellard | gen_op_rorl_T1_im_cc, |
| 152 | 2c0262af | bellard | }; |
| 153 | 2c0262af | bellard | |
| 154 | 1e8d4eec | bellard | static GenOpFunc *gen_shift_T1_0_cc[4] = { |
| 155 | 1e8d4eec | bellard | NULL,
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| 156 | 1e8d4eec | bellard | gen_op_shrl_T1_0_cc, |
| 157 | 1e8d4eec | bellard | gen_op_sarl_T1_0_cc, |
| 158 | 1e8d4eec | bellard | gen_op_rrxl_T1_cc, |
| 159 | 1e8d4eec | bellard | }; |
| 160 | 1e8d4eec | bellard | |
| 161 | 2c0262af | bellard | static GenOpFunc *gen_shift_T1_T0[4] = { |
| 162 | 2c0262af | bellard | gen_op_shll_T1_T0, |
| 163 | 2c0262af | bellard | gen_op_shrl_T1_T0, |
| 164 | 2c0262af | bellard | gen_op_sarl_T1_T0, |
| 165 | 2c0262af | bellard | gen_op_rorl_T1_T0, |
| 166 | 2c0262af | bellard | }; |
| 167 | 2c0262af | bellard | |
| 168 | 2c0262af | bellard | static GenOpFunc *gen_shift_T1_T0_cc[4] = { |
| 169 | 2c0262af | bellard | gen_op_shll_T1_T0_cc, |
| 170 | 2c0262af | bellard | gen_op_shrl_T1_T0_cc, |
| 171 | 2c0262af | bellard | gen_op_sarl_T1_T0_cc, |
| 172 | 2c0262af | bellard | gen_op_rorl_T1_T0_cc, |
| 173 | 2c0262af | bellard | }; |
| 174 | 2c0262af | bellard | |
| 175 | 2c0262af | bellard | static GenOpFunc *gen_op_movl_TN_reg[3][16] = { |
| 176 | 2c0262af | bellard | {
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| 177 | 2c0262af | bellard | gen_op_movl_T0_r0, |
| 178 | 2c0262af | bellard | gen_op_movl_T0_r1, |
| 179 | 2c0262af | bellard | gen_op_movl_T0_r2, |
| 180 | 2c0262af | bellard | gen_op_movl_T0_r3, |
| 181 | 2c0262af | bellard | gen_op_movl_T0_r4, |
| 182 | 2c0262af | bellard | gen_op_movl_T0_r5, |
| 183 | 2c0262af | bellard | gen_op_movl_T0_r6, |
| 184 | 2c0262af | bellard | gen_op_movl_T0_r7, |
| 185 | 2c0262af | bellard | gen_op_movl_T0_r8, |
| 186 | 2c0262af | bellard | gen_op_movl_T0_r9, |
| 187 | 2c0262af | bellard | gen_op_movl_T0_r10, |
| 188 | 2c0262af | bellard | gen_op_movl_T0_r11, |
| 189 | 2c0262af | bellard | gen_op_movl_T0_r12, |
| 190 | 2c0262af | bellard | gen_op_movl_T0_r13, |
| 191 | 2c0262af | bellard | gen_op_movl_T0_r14, |
| 192 | 2c0262af | bellard | gen_op_movl_T0_r15, |
| 193 | 2c0262af | bellard | }, |
| 194 | 2c0262af | bellard | {
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| 195 | 2c0262af | bellard | gen_op_movl_T1_r0, |
| 196 | 2c0262af | bellard | gen_op_movl_T1_r1, |
| 197 | 2c0262af | bellard | gen_op_movl_T1_r2, |
| 198 | 2c0262af | bellard | gen_op_movl_T1_r3, |
| 199 | 2c0262af | bellard | gen_op_movl_T1_r4, |
| 200 | 2c0262af | bellard | gen_op_movl_T1_r5, |
| 201 | 2c0262af | bellard | gen_op_movl_T1_r6, |
| 202 | 2c0262af | bellard | gen_op_movl_T1_r7, |
| 203 | 2c0262af | bellard | gen_op_movl_T1_r8, |
| 204 | 2c0262af | bellard | gen_op_movl_T1_r9, |
| 205 | 2c0262af | bellard | gen_op_movl_T1_r10, |
| 206 | 2c0262af | bellard | gen_op_movl_T1_r11, |
| 207 | 2c0262af | bellard | gen_op_movl_T1_r12, |
| 208 | 2c0262af | bellard | gen_op_movl_T1_r13, |
| 209 | 2c0262af | bellard | gen_op_movl_T1_r14, |
| 210 | 2c0262af | bellard | gen_op_movl_T1_r15, |
| 211 | 2c0262af | bellard | }, |
| 212 | 2c0262af | bellard | {
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| 213 | 2c0262af | bellard | gen_op_movl_T2_r0, |
| 214 | 2c0262af | bellard | gen_op_movl_T2_r1, |
| 215 | 2c0262af | bellard | gen_op_movl_T2_r2, |
| 216 | 2c0262af | bellard | gen_op_movl_T2_r3, |
| 217 | 2c0262af | bellard | gen_op_movl_T2_r4, |
| 218 | 2c0262af | bellard | gen_op_movl_T2_r5, |
| 219 | 2c0262af | bellard | gen_op_movl_T2_r6, |
| 220 | 2c0262af | bellard | gen_op_movl_T2_r7, |
| 221 | 2c0262af | bellard | gen_op_movl_T2_r8, |
| 222 | 2c0262af | bellard | gen_op_movl_T2_r9, |
| 223 | 2c0262af | bellard | gen_op_movl_T2_r10, |
| 224 | 2c0262af | bellard | gen_op_movl_T2_r11, |
| 225 | 2c0262af | bellard | gen_op_movl_T2_r12, |
| 226 | 2c0262af | bellard | gen_op_movl_T2_r13, |
| 227 | 2c0262af | bellard | gen_op_movl_T2_r14, |
| 228 | 2c0262af | bellard | gen_op_movl_T2_r15, |
| 229 | 2c0262af | bellard | }, |
| 230 | 2c0262af | bellard | }; |
| 231 | 2c0262af | bellard | |
| 232 | 2c0262af | bellard | static GenOpFunc *gen_op_movl_reg_TN[2][16] = { |
| 233 | 2c0262af | bellard | {
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| 234 | 2c0262af | bellard | gen_op_movl_r0_T0, |
| 235 | 2c0262af | bellard | gen_op_movl_r1_T0, |
| 236 | 2c0262af | bellard | gen_op_movl_r2_T0, |
| 237 | 2c0262af | bellard | gen_op_movl_r3_T0, |
| 238 | 2c0262af | bellard | gen_op_movl_r4_T0, |
| 239 | 2c0262af | bellard | gen_op_movl_r5_T0, |
| 240 | 2c0262af | bellard | gen_op_movl_r6_T0, |
| 241 | 2c0262af | bellard | gen_op_movl_r7_T0, |
| 242 | 2c0262af | bellard | gen_op_movl_r8_T0, |
| 243 | 2c0262af | bellard | gen_op_movl_r9_T0, |
| 244 | 2c0262af | bellard | gen_op_movl_r10_T0, |
| 245 | 2c0262af | bellard | gen_op_movl_r11_T0, |
| 246 | 2c0262af | bellard | gen_op_movl_r12_T0, |
| 247 | 2c0262af | bellard | gen_op_movl_r13_T0, |
| 248 | 2c0262af | bellard | gen_op_movl_r14_T0, |
| 249 | 2c0262af | bellard | gen_op_movl_r15_T0, |
| 250 | 2c0262af | bellard | }, |
| 251 | 2c0262af | bellard | {
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| 252 | 2c0262af | bellard | gen_op_movl_r0_T1, |
| 253 | 2c0262af | bellard | gen_op_movl_r1_T1, |
| 254 | 2c0262af | bellard | gen_op_movl_r2_T1, |
| 255 | 2c0262af | bellard | gen_op_movl_r3_T1, |
| 256 | 2c0262af | bellard | gen_op_movl_r4_T1, |
| 257 | 2c0262af | bellard | gen_op_movl_r5_T1, |
| 258 | 2c0262af | bellard | gen_op_movl_r6_T1, |
| 259 | 2c0262af | bellard | gen_op_movl_r7_T1, |
| 260 | 2c0262af | bellard | gen_op_movl_r8_T1, |
| 261 | 2c0262af | bellard | gen_op_movl_r9_T1, |
| 262 | 2c0262af | bellard | gen_op_movl_r10_T1, |
| 263 | 2c0262af | bellard | gen_op_movl_r11_T1, |
| 264 | 2c0262af | bellard | gen_op_movl_r12_T1, |
| 265 | 2c0262af | bellard | gen_op_movl_r13_T1, |
| 266 | 2c0262af | bellard | gen_op_movl_r14_T1, |
| 267 | 2c0262af | bellard | gen_op_movl_r15_T1, |
| 268 | 2c0262af | bellard | }, |
| 269 | 2c0262af | bellard | }; |
| 270 | 2c0262af | bellard | |
| 271 | 2c0262af | bellard | static GenOpFunc1 *gen_op_movl_TN_im[3] = { |
| 272 | 2c0262af | bellard | gen_op_movl_T0_im, |
| 273 | 2c0262af | bellard | gen_op_movl_T1_im, |
| 274 | 2c0262af | bellard | gen_op_movl_T2_im, |
| 275 | 2c0262af | bellard | }; |
| 276 | 2c0262af | bellard | |
| 277 | 99c475ab | bellard | static GenOpFunc1 *gen_shift_T0_im_thumb[3] = { |
| 278 | 99c475ab | bellard | gen_op_shll_T0_im_thumb, |
| 279 | 99c475ab | bellard | gen_op_shrl_T0_im_thumb, |
| 280 | 99c475ab | bellard | gen_op_sarl_T0_im_thumb, |
| 281 | 99c475ab | bellard | }; |
| 282 | 99c475ab | bellard | |
| 283 | 99c475ab | bellard | static inline void gen_bx(DisasContext *s) |
| 284 | 99c475ab | bellard | {
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| 285 | 99c475ab | bellard | s->is_jmp = DISAS_UPDATE; |
| 286 | 99c475ab | bellard | gen_op_bx_T0(); |
| 287 | 99c475ab | bellard | } |
| 288 | 99c475ab | bellard | |
| 289 | b5ff1b31 | bellard | |
| 290 | b5ff1b31 | bellard | #if defined(CONFIG_USER_ONLY)
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| 291 | b5ff1b31 | bellard | #define gen_ldst(name, s) gen_op_##name##_raw() |
| 292 | b5ff1b31 | bellard | #else
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| 293 | b5ff1b31 | bellard | #define gen_ldst(name, s) do { \ |
| 294 | 6658ffb8 | pbrook | s->is_mem = 1; \
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| 295 | b5ff1b31 | bellard | if (IS_USER(s)) \
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| 296 | b5ff1b31 | bellard | gen_op_##name##_user(); \ |
| 297 | b5ff1b31 | bellard | else \
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| 298 | b5ff1b31 | bellard | gen_op_##name##_kernel(); \ |
| 299 | b5ff1b31 | bellard | } while (0) |
| 300 | b5ff1b31 | bellard | #endif
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| 301 | b5ff1b31 | bellard | |
| 302 | 2c0262af | bellard | static inline void gen_movl_TN_reg(DisasContext *s, int reg, int t) |
| 303 | 2c0262af | bellard | {
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| 304 | 2c0262af | bellard | int val;
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| 305 | 2c0262af | bellard | |
| 306 | 2c0262af | bellard | if (reg == 15) { |
| 307 | 5899f386 | bellard | /* normaly, since we updated PC, we need only to add one insn */
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| 308 | 5899f386 | bellard | if (s->thumb)
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| 309 | 5899f386 | bellard | val = (long)s->pc + 2; |
| 310 | 5899f386 | bellard | else
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| 311 | 5899f386 | bellard | val = (long)s->pc + 4; |
| 312 | 2c0262af | bellard | gen_op_movl_TN_im[t](val); |
| 313 | 2c0262af | bellard | } else {
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| 314 | 2c0262af | bellard | gen_op_movl_TN_reg[t][reg](); |
| 315 | 2c0262af | bellard | } |
| 316 | 2c0262af | bellard | } |
| 317 | 2c0262af | bellard | |
| 318 | 2c0262af | bellard | static inline void gen_movl_T0_reg(DisasContext *s, int reg) |
| 319 | 2c0262af | bellard | {
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| 320 | 2c0262af | bellard | gen_movl_TN_reg(s, reg, 0);
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| 321 | 2c0262af | bellard | } |
| 322 | 2c0262af | bellard | |
| 323 | 2c0262af | bellard | static inline void gen_movl_T1_reg(DisasContext *s, int reg) |
| 324 | 2c0262af | bellard | {
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| 325 | 2c0262af | bellard | gen_movl_TN_reg(s, reg, 1);
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| 326 | 2c0262af | bellard | } |
| 327 | 2c0262af | bellard | |
| 328 | 2c0262af | bellard | static inline void gen_movl_T2_reg(DisasContext *s, int reg) |
| 329 | 2c0262af | bellard | {
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| 330 | 2c0262af | bellard | gen_movl_TN_reg(s, reg, 2);
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| 331 | 2c0262af | bellard | } |
| 332 | 2c0262af | bellard | |
| 333 | 2c0262af | bellard | static inline void gen_movl_reg_TN(DisasContext *s, int reg, int t) |
| 334 | 2c0262af | bellard | {
|
| 335 | 2c0262af | bellard | gen_op_movl_reg_TN[t][reg](); |
| 336 | 2c0262af | bellard | if (reg == 15) { |
| 337 | 2c0262af | bellard | s->is_jmp = DISAS_JUMP; |
| 338 | 2c0262af | bellard | } |
| 339 | 2c0262af | bellard | } |
| 340 | 2c0262af | bellard | |
| 341 | 2c0262af | bellard | static inline void gen_movl_reg_T0(DisasContext *s, int reg) |
| 342 | 2c0262af | bellard | {
|
| 343 | 2c0262af | bellard | gen_movl_reg_TN(s, reg, 0);
|
| 344 | 2c0262af | bellard | } |
| 345 | 2c0262af | bellard | |
| 346 | 2c0262af | bellard | static inline void gen_movl_reg_T1(DisasContext *s, int reg) |
| 347 | 2c0262af | bellard | {
|
| 348 | 2c0262af | bellard | gen_movl_reg_TN(s, reg, 1);
|
| 349 | 2c0262af | bellard | } |
| 350 | 2c0262af | bellard | |
| 351 | b5ff1b31 | bellard | /* Force a TB lookup after an instruction that changes the CPU state. */
|
| 352 | b5ff1b31 | bellard | static inline void gen_lookup_tb(DisasContext *s) |
| 353 | b5ff1b31 | bellard | {
|
| 354 | b5ff1b31 | bellard | gen_op_movl_T0_im(s->pc); |
| 355 | b5ff1b31 | bellard | gen_movl_reg_T0(s, 15);
|
| 356 | b5ff1b31 | bellard | s->is_jmp = DISAS_UPDATE; |
| 357 | b5ff1b31 | bellard | } |
| 358 | b5ff1b31 | bellard | |
| 359 | 2c0262af | bellard | static inline void gen_add_data_offset(DisasContext *s, unsigned int insn) |
| 360 | 2c0262af | bellard | {
|
| 361 | 1e8d4eec | bellard | int val, rm, shift, shiftop;
|
| 362 | 2c0262af | bellard | |
| 363 | 2c0262af | bellard | if (!(insn & (1 << 25))) { |
| 364 | 2c0262af | bellard | /* immediate */
|
| 365 | 2c0262af | bellard | val = insn & 0xfff;
|
| 366 | 2c0262af | bellard | if (!(insn & (1 << 23))) |
| 367 | 2c0262af | bellard | val = -val; |
| 368 | 537730b9 | bellard | if (val != 0) |
| 369 | 537730b9 | bellard | gen_op_addl_T1_im(val); |
| 370 | 2c0262af | bellard | } else {
|
| 371 | 2c0262af | bellard | /* shift/register */
|
| 372 | 2c0262af | bellard | rm = (insn) & 0xf;
|
| 373 | 2c0262af | bellard | shift = (insn >> 7) & 0x1f; |
| 374 | 2c0262af | bellard | gen_movl_T2_reg(s, rm); |
| 375 | 1e8d4eec | bellard | shiftop = (insn >> 5) & 3; |
| 376 | 2c0262af | bellard | if (shift != 0) { |
| 377 | 1e8d4eec | bellard | gen_shift_T2_im[shiftop](shift); |
| 378 | 1e8d4eec | bellard | } else if (shiftop != 0) { |
| 379 | 1e8d4eec | bellard | gen_shift_T2_0[shiftop](); |
| 380 | 2c0262af | bellard | } |
| 381 | 2c0262af | bellard | if (!(insn & (1 << 23))) |
| 382 | 2c0262af | bellard | gen_op_subl_T1_T2(); |
| 383 | 2c0262af | bellard | else
|
| 384 | 2c0262af | bellard | gen_op_addl_T1_T2(); |
| 385 | 2c0262af | bellard | } |
| 386 | 2c0262af | bellard | } |
| 387 | 2c0262af | bellard | |
| 388 | 191f9a93 | pbrook | static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn, |
| 389 | 191f9a93 | pbrook | int extra)
|
| 390 | 2c0262af | bellard | {
|
| 391 | 2c0262af | bellard | int val, rm;
|
| 392 | 2c0262af | bellard | |
| 393 | 2c0262af | bellard | if (insn & (1 << 22)) { |
| 394 | 2c0262af | bellard | /* immediate */
|
| 395 | 2c0262af | bellard | val = (insn & 0xf) | ((insn >> 4) & 0xf0); |
| 396 | 2c0262af | bellard | if (!(insn & (1 << 23))) |
| 397 | 2c0262af | bellard | val = -val; |
| 398 | 18acad92 | pbrook | val += extra; |
| 399 | 537730b9 | bellard | if (val != 0) |
| 400 | 537730b9 | bellard | gen_op_addl_T1_im(val); |
| 401 | 2c0262af | bellard | } else {
|
| 402 | 2c0262af | bellard | /* register */
|
| 403 | 191f9a93 | pbrook | if (extra)
|
| 404 | 191f9a93 | pbrook | gen_op_addl_T1_im(extra); |
| 405 | 2c0262af | bellard | rm = (insn) & 0xf;
|
| 406 | 2c0262af | bellard | gen_movl_T2_reg(s, rm); |
| 407 | 2c0262af | bellard | if (!(insn & (1 << 23))) |
| 408 | 2c0262af | bellard | gen_op_subl_T1_T2(); |
| 409 | 2c0262af | bellard | else
|
| 410 | 2c0262af | bellard | gen_op_addl_T1_T2(); |
| 411 | 2c0262af | bellard | } |
| 412 | 2c0262af | bellard | } |
| 413 | 2c0262af | bellard | |
| 414 | b7bcbe95 | bellard | #define VFP_OP(name) \
|
| 415 | b7bcbe95 | bellard | static inline void gen_vfp_##name(int dp) \ |
| 416 | b7bcbe95 | bellard | { \
|
| 417 | b7bcbe95 | bellard | if (dp) \
|
| 418 | b7bcbe95 | bellard | gen_op_vfp_##name##d(); \ |
| 419 | b7bcbe95 | bellard | else \
|
| 420 | b7bcbe95 | bellard | gen_op_vfp_##name##s(); \ |
| 421 | b7bcbe95 | bellard | } |
| 422 | b7bcbe95 | bellard | |
| 423 | b7bcbe95 | bellard | VFP_OP(add) |
| 424 | b7bcbe95 | bellard | VFP_OP(sub) |
| 425 | b7bcbe95 | bellard | VFP_OP(mul) |
| 426 | b7bcbe95 | bellard | VFP_OP(div) |
| 427 | b7bcbe95 | bellard | VFP_OP(neg) |
| 428 | b7bcbe95 | bellard | VFP_OP(abs) |
| 429 | b7bcbe95 | bellard | VFP_OP(sqrt) |
| 430 | b7bcbe95 | bellard | VFP_OP(cmp) |
| 431 | b7bcbe95 | bellard | VFP_OP(cmpe) |
| 432 | b7bcbe95 | bellard | VFP_OP(F1_ld0) |
| 433 | b7bcbe95 | bellard | VFP_OP(uito) |
| 434 | b7bcbe95 | bellard | VFP_OP(sito) |
| 435 | b7bcbe95 | bellard | VFP_OP(toui) |
| 436 | b7bcbe95 | bellard | VFP_OP(touiz) |
| 437 | b7bcbe95 | bellard | VFP_OP(tosi) |
| 438 | b7bcbe95 | bellard | VFP_OP(tosiz) |
| 439 | b7bcbe95 | bellard | |
| 440 | b7bcbe95 | bellard | #undef VFP_OP
|
| 441 | b7bcbe95 | bellard | |
| 442 | b5ff1b31 | bellard | static inline void gen_vfp_ld(DisasContext *s, int dp) |
| 443 | b5ff1b31 | bellard | {
|
| 444 | b5ff1b31 | bellard | if (dp)
|
| 445 | b5ff1b31 | bellard | gen_ldst(vfp_ldd, s); |
| 446 | b5ff1b31 | bellard | else
|
| 447 | b5ff1b31 | bellard | gen_ldst(vfp_lds, s); |
| 448 | b5ff1b31 | bellard | } |
| 449 | b5ff1b31 | bellard | |
| 450 | b5ff1b31 | bellard | static inline void gen_vfp_st(DisasContext *s, int dp) |
| 451 | b5ff1b31 | bellard | {
|
| 452 | b5ff1b31 | bellard | if (dp)
|
| 453 | b5ff1b31 | bellard | gen_ldst(vfp_std, s); |
| 454 | b5ff1b31 | bellard | else
|
| 455 | b5ff1b31 | bellard | gen_ldst(vfp_sts, s); |
| 456 | b5ff1b31 | bellard | } |
| 457 | b5ff1b31 | bellard | |
| 458 | 8e96005d | bellard | static inline long |
| 459 | 8e96005d | bellard | vfp_reg_offset (int dp, int reg) |
| 460 | 8e96005d | bellard | {
|
| 461 | 8e96005d | bellard | if (dp)
|
| 462 | 8e96005d | bellard | return offsetof(CPUARMState, vfp.regs[reg]);
|
| 463 | 8e96005d | bellard | else if (reg & 1) { |
| 464 | 8e96005d | bellard | return offsetof(CPUARMState, vfp.regs[reg >> 1]) |
| 465 | 8e96005d | bellard | + offsetof(CPU_DoubleU, l.upper); |
| 466 | 8e96005d | bellard | } else {
|
| 467 | 8e96005d | bellard | return offsetof(CPUARMState, vfp.regs[reg >> 1]) |
| 468 | 8e96005d | bellard | + offsetof(CPU_DoubleU, l.lower); |
| 469 | 8e96005d | bellard | } |
| 470 | 8e96005d | bellard | } |
| 471 | b7bcbe95 | bellard | static inline void gen_mov_F0_vreg(int dp, int reg) |
| 472 | b7bcbe95 | bellard | {
|
| 473 | b7bcbe95 | bellard | if (dp)
|
| 474 | 8e96005d | bellard | gen_op_vfp_getreg_F0d(vfp_reg_offset(dp, reg)); |
| 475 | b7bcbe95 | bellard | else
|
| 476 | 8e96005d | bellard | gen_op_vfp_getreg_F0s(vfp_reg_offset(dp, reg)); |
| 477 | b7bcbe95 | bellard | } |
| 478 | b7bcbe95 | bellard | |
| 479 | b7bcbe95 | bellard | static inline void gen_mov_F1_vreg(int dp, int reg) |
| 480 | b7bcbe95 | bellard | {
|
| 481 | b7bcbe95 | bellard | if (dp)
|
| 482 | 8e96005d | bellard | gen_op_vfp_getreg_F1d(vfp_reg_offset(dp, reg)); |
| 483 | b7bcbe95 | bellard | else
|
| 484 | 8e96005d | bellard | gen_op_vfp_getreg_F1s(vfp_reg_offset(dp, reg)); |
| 485 | b7bcbe95 | bellard | } |
| 486 | b7bcbe95 | bellard | |
| 487 | b7bcbe95 | bellard | static inline void gen_mov_vreg_F0(int dp, int reg) |
| 488 | b7bcbe95 | bellard | {
|
| 489 | b7bcbe95 | bellard | if (dp)
|
| 490 | 8e96005d | bellard | gen_op_vfp_setreg_F0d(vfp_reg_offset(dp, reg)); |
| 491 | b7bcbe95 | bellard | else
|
| 492 | 8e96005d | bellard | gen_op_vfp_setreg_F0s(vfp_reg_offset(dp, reg)); |
| 493 | b7bcbe95 | bellard | } |
| 494 | b7bcbe95 | bellard | |
| 495 | b5ff1b31 | bellard | /* Disassemble system coprocessor (cp15) instruction. Return nonzero if
|
| 496 | b5ff1b31 | bellard | instruction is not defined. */
|
| 497 | b5ff1b31 | bellard | static int disas_cp15_insn(DisasContext *s, uint32_t insn) |
| 498 | b5ff1b31 | bellard | {
|
| 499 | b5ff1b31 | bellard | uint32_t rd; |
| 500 | b5ff1b31 | bellard | |
| 501 | b5ff1b31 | bellard | /* ??? Some cp15 registers are accessible from userspace. */
|
| 502 | b5ff1b31 | bellard | if (IS_USER(s)) {
|
| 503 | b5ff1b31 | bellard | return 1; |
| 504 | b5ff1b31 | bellard | } |
| 505 | 9332f9da | bellard | if ((insn & 0x0fff0fff) == 0x0e070f90 |
| 506 | 9332f9da | bellard | || (insn & 0x0fff0fff) == 0x0e070f58) { |
| 507 | 9332f9da | bellard | /* Wait for interrupt. */
|
| 508 | 9332f9da | bellard | gen_op_movl_T0_im((long)s->pc);
|
| 509 | 9332f9da | bellard | gen_op_movl_reg_TN[0][15](); |
| 510 | 9332f9da | bellard | gen_op_wfi(); |
| 511 | 9332f9da | bellard | s->is_jmp = DISAS_JUMP; |
| 512 | 9332f9da | bellard | return 0; |
| 513 | 9332f9da | bellard | } |
| 514 | b5ff1b31 | bellard | rd = (insn >> 12) & 0xf; |
| 515 | b5ff1b31 | bellard | if (insn & (1 << 20)) { |
| 516 | b5ff1b31 | bellard | gen_op_movl_T0_cp15(insn); |
| 517 | b5ff1b31 | bellard | /* If the destination register is r15 then sets condition codes. */
|
| 518 | b5ff1b31 | bellard | if (rd != 15) |
| 519 | b5ff1b31 | bellard | gen_movl_reg_T0(s, rd); |
| 520 | b5ff1b31 | bellard | } else {
|
| 521 | b5ff1b31 | bellard | gen_movl_T0_reg(s, rd); |
| 522 | b5ff1b31 | bellard | gen_op_movl_cp15_T0(insn); |
| 523 | b5ff1b31 | bellard | } |
| 524 | b5ff1b31 | bellard | gen_lookup_tb(s); |
| 525 | b5ff1b31 | bellard | return 0; |
| 526 | b5ff1b31 | bellard | } |
| 527 | b5ff1b31 | bellard | |
| 528 | b7bcbe95 | bellard | /* Disassemble a VFP instruction. Returns nonzero if an error occured
|
| 529 | b7bcbe95 | bellard | (ie. an undefined instruction). */
|
| 530 | b7bcbe95 | bellard | static int disas_vfp_insn(CPUState * env, DisasContext *s, uint32_t insn) |
| 531 | b7bcbe95 | bellard | {
|
| 532 | b7bcbe95 | bellard | uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask; |
| 533 | b7bcbe95 | bellard | int dp, veclen;
|
| 534 | b7bcbe95 | bellard | |
| 535 | 40f137e1 | pbrook | if (!arm_feature(env, ARM_FEATURE_VFP))
|
| 536 | 40f137e1 | pbrook | return 1; |
| 537 | 40f137e1 | pbrook | |
| 538 | 40f137e1 | pbrook | if ((env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) == 0) { |
| 539 | 40f137e1 | pbrook | /* VFP disabled. Only allow fmxr/fmrx to/from fpexc and fpsid. */
|
| 540 | 40f137e1 | pbrook | if ((insn & 0x0fe00fff) != 0x0ee00a10) |
| 541 | 40f137e1 | pbrook | return 1; |
| 542 | 40f137e1 | pbrook | rn = (insn >> 16) & 0xf; |
| 543 | 40f137e1 | pbrook | if (rn != 0 && rn != 8) |
| 544 | 40f137e1 | pbrook | return 1; |
| 545 | 40f137e1 | pbrook | } |
| 546 | b7bcbe95 | bellard | dp = ((insn & 0xf00) == 0xb00); |
| 547 | b7bcbe95 | bellard | switch ((insn >> 24) & 0xf) { |
| 548 | b7bcbe95 | bellard | case 0xe: |
| 549 | b7bcbe95 | bellard | if (insn & (1 << 4)) { |
| 550 | b7bcbe95 | bellard | /* single register transfer */
|
| 551 | b7bcbe95 | bellard | if ((insn & 0x6f) != 0x00) |
| 552 | b7bcbe95 | bellard | return 1; |
| 553 | b7bcbe95 | bellard | rd = (insn >> 12) & 0xf; |
| 554 | b7bcbe95 | bellard | if (dp) {
|
| 555 | b7bcbe95 | bellard | if (insn & 0x80) |
| 556 | b7bcbe95 | bellard | return 1; |
| 557 | b7bcbe95 | bellard | rn = (insn >> 16) & 0xf; |
| 558 | b7bcbe95 | bellard | /* Get the existing value even for arm->vfp moves because
|
| 559 | b7bcbe95 | bellard | we only set half the register. */
|
| 560 | b7bcbe95 | bellard | gen_mov_F0_vreg(1, rn);
|
| 561 | b7bcbe95 | bellard | gen_op_vfp_mrrd(); |
| 562 | b7bcbe95 | bellard | if (insn & (1 << 20)) { |
| 563 | b7bcbe95 | bellard | /* vfp->arm */
|
| 564 | b7bcbe95 | bellard | if (insn & (1 << 21)) |
| 565 | b7bcbe95 | bellard | gen_movl_reg_T1(s, rd); |
| 566 | b7bcbe95 | bellard | else
|
| 567 | b7bcbe95 | bellard | gen_movl_reg_T0(s, rd); |
| 568 | b7bcbe95 | bellard | } else {
|
| 569 | b7bcbe95 | bellard | /* arm->vfp */
|
| 570 | b7bcbe95 | bellard | if (insn & (1 << 21)) |
| 571 | b7bcbe95 | bellard | gen_movl_T1_reg(s, rd); |
| 572 | b7bcbe95 | bellard | else
|
| 573 | b7bcbe95 | bellard | gen_movl_T0_reg(s, rd); |
| 574 | b7bcbe95 | bellard | gen_op_vfp_mdrr(); |
| 575 | b7bcbe95 | bellard | gen_mov_vreg_F0(dp, rn); |
| 576 | b7bcbe95 | bellard | } |
| 577 | b7bcbe95 | bellard | } else {
|
| 578 | b7bcbe95 | bellard | rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1); |
| 579 | b7bcbe95 | bellard | if (insn & (1 << 20)) { |
| 580 | b7bcbe95 | bellard | /* vfp->arm */
|
| 581 | b7bcbe95 | bellard | if (insn & (1 << 21)) { |
| 582 | b7bcbe95 | bellard | /* system register */
|
| 583 | 40f137e1 | pbrook | rn >>= 1;
|
| 584 | b7bcbe95 | bellard | switch (rn) {
|
| 585 | 40f137e1 | pbrook | case ARM_VFP_FPSID:
|
| 586 | 40f137e1 | pbrook | case ARM_VFP_FPEXC:
|
| 587 | 40f137e1 | pbrook | case ARM_VFP_FPINST:
|
| 588 | 40f137e1 | pbrook | case ARM_VFP_FPINST2:
|
| 589 | 40f137e1 | pbrook | gen_op_vfp_movl_T0_xreg(rn); |
| 590 | b7bcbe95 | bellard | break;
|
| 591 | 40f137e1 | pbrook | case ARM_VFP_FPSCR:
|
| 592 | b7bcbe95 | bellard | if (rd == 15) |
| 593 | b7bcbe95 | bellard | gen_op_vfp_movl_T0_fpscr_flags(); |
| 594 | b7bcbe95 | bellard | else
|
| 595 | b7bcbe95 | bellard | gen_op_vfp_movl_T0_fpscr(); |
| 596 | b7bcbe95 | bellard | break;
|
| 597 | b7bcbe95 | bellard | default:
|
| 598 | b7bcbe95 | bellard | return 1; |
| 599 | b7bcbe95 | bellard | } |
| 600 | b7bcbe95 | bellard | } else {
|
| 601 | b7bcbe95 | bellard | gen_mov_F0_vreg(0, rn);
|
| 602 | b7bcbe95 | bellard | gen_op_vfp_mrs(); |
| 603 | b7bcbe95 | bellard | } |
| 604 | b7bcbe95 | bellard | if (rd == 15) { |
| 605 | b5ff1b31 | bellard | /* Set the 4 flag bits in the CPSR. */
|
| 606 | b5ff1b31 | bellard | gen_op_movl_cpsr_T0(0xf0000000);
|
| 607 | b7bcbe95 | bellard | } else
|
| 608 | b7bcbe95 | bellard | gen_movl_reg_T0(s, rd); |
| 609 | b7bcbe95 | bellard | } else {
|
| 610 | b7bcbe95 | bellard | /* arm->vfp */
|
| 611 | b7bcbe95 | bellard | gen_movl_T0_reg(s, rd); |
| 612 | b7bcbe95 | bellard | if (insn & (1 << 21)) { |
| 613 | 40f137e1 | pbrook | rn >>= 1;
|
| 614 | b7bcbe95 | bellard | /* system register */
|
| 615 | b7bcbe95 | bellard | switch (rn) {
|
| 616 | 40f137e1 | pbrook | case ARM_VFP_FPSID:
|
| 617 | b7bcbe95 | bellard | /* Writes are ignored. */
|
| 618 | b7bcbe95 | bellard | break;
|
| 619 | 40f137e1 | pbrook | case ARM_VFP_FPSCR:
|
| 620 | b7bcbe95 | bellard | gen_op_vfp_movl_fpscr_T0(); |
| 621 | b5ff1b31 | bellard | gen_lookup_tb(s); |
| 622 | b7bcbe95 | bellard | break;
|
| 623 | 40f137e1 | pbrook | case ARM_VFP_FPEXC:
|
| 624 | 40f137e1 | pbrook | gen_op_vfp_movl_xreg_T0(rn); |
| 625 | 40f137e1 | pbrook | gen_lookup_tb(s); |
| 626 | 40f137e1 | pbrook | break;
|
| 627 | 40f137e1 | pbrook | case ARM_VFP_FPINST:
|
| 628 | 40f137e1 | pbrook | case ARM_VFP_FPINST2:
|
| 629 | 40f137e1 | pbrook | gen_op_vfp_movl_xreg_T0(rn); |
| 630 | 40f137e1 | pbrook | break;
|
| 631 | b7bcbe95 | bellard | default:
|
| 632 | b7bcbe95 | bellard | return 1; |
| 633 | b7bcbe95 | bellard | } |
| 634 | b7bcbe95 | bellard | } else {
|
| 635 | b7bcbe95 | bellard | gen_op_vfp_msr(); |
| 636 | b7bcbe95 | bellard | gen_mov_vreg_F0(0, rn);
|
| 637 | b7bcbe95 | bellard | } |
| 638 | b7bcbe95 | bellard | } |
| 639 | b7bcbe95 | bellard | } |
| 640 | b7bcbe95 | bellard | } else {
|
| 641 | b7bcbe95 | bellard | /* data processing */
|
| 642 | b7bcbe95 | bellard | /* The opcode is in bits 23, 21, 20 and 6. */
|
| 643 | b7bcbe95 | bellard | op = ((insn >> 20) & 8) | ((insn >> 19) & 6) | ((insn >> 6) & 1); |
| 644 | b7bcbe95 | bellard | if (dp) {
|
| 645 | b7bcbe95 | bellard | if (op == 15) { |
| 646 | b7bcbe95 | bellard | /* rn is opcode */
|
| 647 | b7bcbe95 | bellard | rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1); |
| 648 | b7bcbe95 | bellard | } else {
|
| 649 | b7bcbe95 | bellard | /* rn is register number */
|
| 650 | b7bcbe95 | bellard | if (insn & (1 << 7)) |
| 651 | b7bcbe95 | bellard | return 1; |
| 652 | b7bcbe95 | bellard | rn = (insn >> 16) & 0xf; |
| 653 | b7bcbe95 | bellard | } |
| 654 | b7bcbe95 | bellard | |
| 655 | b7bcbe95 | bellard | if (op == 15 && (rn == 15 || rn > 17)) { |
| 656 | b7bcbe95 | bellard | /* Integer or single precision destination. */
|
| 657 | b7bcbe95 | bellard | rd = ((insn >> 11) & 0x1e) | ((insn >> 22) & 1); |
| 658 | b7bcbe95 | bellard | } else {
|
| 659 | b7bcbe95 | bellard | if (insn & (1 << 22)) |
| 660 | b7bcbe95 | bellard | return 1; |
| 661 | b7bcbe95 | bellard | rd = (insn >> 12) & 0xf; |
| 662 | b7bcbe95 | bellard | } |
| 663 | b7bcbe95 | bellard | |
| 664 | b7bcbe95 | bellard | if (op == 15 && (rn == 16 || rn == 17)) { |
| 665 | b7bcbe95 | bellard | /* Integer source. */
|
| 666 | b7bcbe95 | bellard | rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1); |
| 667 | b7bcbe95 | bellard | } else {
|
| 668 | b7bcbe95 | bellard | if (insn & (1 << 5)) |
| 669 | b7bcbe95 | bellard | return 1; |
| 670 | b7bcbe95 | bellard | rm = insn & 0xf;
|
| 671 | b7bcbe95 | bellard | } |
| 672 | b7bcbe95 | bellard | } else {
|
| 673 | b7bcbe95 | bellard | rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1); |
| 674 | b7bcbe95 | bellard | if (op == 15 && rn == 15) { |
| 675 | b7bcbe95 | bellard | /* Double precision destination. */
|
| 676 | b7bcbe95 | bellard | if (insn & (1 << 22)) |
| 677 | b7bcbe95 | bellard | return 1; |
| 678 | b7bcbe95 | bellard | rd = (insn >> 12) & 0xf; |
| 679 | b7bcbe95 | bellard | } else
|
| 680 | b7bcbe95 | bellard | rd = ((insn >> 11) & 0x1e) | ((insn >> 22) & 1); |
| 681 | b7bcbe95 | bellard | rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1); |
| 682 | b7bcbe95 | bellard | } |
| 683 | b7bcbe95 | bellard | |
| 684 | b7bcbe95 | bellard | veclen = env->vfp.vec_len; |
| 685 | b7bcbe95 | bellard | if (op == 15 && rn > 3) |
| 686 | b7bcbe95 | bellard | veclen = 0;
|
| 687 | b7bcbe95 | bellard | |
| 688 | b7bcbe95 | bellard | /* Shut up compiler warnings. */
|
| 689 | b7bcbe95 | bellard | delta_m = 0;
|
| 690 | b7bcbe95 | bellard | delta_d = 0;
|
| 691 | b7bcbe95 | bellard | bank_mask = 0;
|
| 692 | b7bcbe95 | bellard | |
| 693 | b7bcbe95 | bellard | if (veclen > 0) { |
| 694 | b7bcbe95 | bellard | if (dp)
|
| 695 | b7bcbe95 | bellard | bank_mask = 0xc;
|
| 696 | b7bcbe95 | bellard | else
|
| 697 | b7bcbe95 | bellard | bank_mask = 0x18;
|
| 698 | b7bcbe95 | bellard | |
| 699 | b7bcbe95 | bellard | /* Figure out what type of vector operation this is. */
|
| 700 | b7bcbe95 | bellard | if ((rd & bank_mask) == 0) { |
| 701 | b7bcbe95 | bellard | /* scalar */
|
| 702 | b7bcbe95 | bellard | veclen = 0;
|
| 703 | b7bcbe95 | bellard | } else {
|
| 704 | b7bcbe95 | bellard | if (dp)
|
| 705 | b7bcbe95 | bellard | delta_d = (env->vfp.vec_stride >> 1) + 1; |
| 706 | b7bcbe95 | bellard | else
|
| 707 | b7bcbe95 | bellard | delta_d = env->vfp.vec_stride + 1;
|
| 708 | b7bcbe95 | bellard | |
| 709 | b7bcbe95 | bellard | if ((rm & bank_mask) == 0) { |
| 710 | b7bcbe95 | bellard | /* mixed scalar/vector */
|
| 711 | b7bcbe95 | bellard | delta_m = 0;
|
| 712 | b7bcbe95 | bellard | } else {
|
| 713 | b7bcbe95 | bellard | /* vector */
|
| 714 | b7bcbe95 | bellard | delta_m = delta_d; |
| 715 | b7bcbe95 | bellard | } |
| 716 | b7bcbe95 | bellard | } |
| 717 | b7bcbe95 | bellard | } |
| 718 | b7bcbe95 | bellard | |
| 719 | b7bcbe95 | bellard | /* Load the initial operands. */
|
| 720 | b7bcbe95 | bellard | if (op == 15) { |
| 721 | b7bcbe95 | bellard | switch (rn) {
|
| 722 | b7bcbe95 | bellard | case 16: |
| 723 | b7bcbe95 | bellard | case 17: |
| 724 | b7bcbe95 | bellard | /* Integer source */
|
| 725 | b7bcbe95 | bellard | gen_mov_F0_vreg(0, rm);
|
| 726 | b7bcbe95 | bellard | break;
|
| 727 | b7bcbe95 | bellard | case 8: |
| 728 | b7bcbe95 | bellard | case 9: |
| 729 | b7bcbe95 | bellard | /* Compare */
|
| 730 | b7bcbe95 | bellard | gen_mov_F0_vreg(dp, rd); |
| 731 | b7bcbe95 | bellard | gen_mov_F1_vreg(dp, rm); |
| 732 | b7bcbe95 | bellard | break;
|
| 733 | b7bcbe95 | bellard | case 10: |
| 734 | b7bcbe95 | bellard | case 11: |
| 735 | b7bcbe95 | bellard | /* Compare with zero */
|
| 736 | b7bcbe95 | bellard | gen_mov_F0_vreg(dp, rd); |
| 737 | b7bcbe95 | bellard | gen_vfp_F1_ld0(dp); |
| 738 | b7bcbe95 | bellard | break;
|
| 739 | b7bcbe95 | bellard | default:
|
| 740 | b7bcbe95 | bellard | /* One source operand. */
|
| 741 | b7bcbe95 | bellard | gen_mov_F0_vreg(dp, rm); |
| 742 | b7bcbe95 | bellard | } |
| 743 | b7bcbe95 | bellard | } else {
|
| 744 | b7bcbe95 | bellard | /* Two source operands. */
|
| 745 | b7bcbe95 | bellard | gen_mov_F0_vreg(dp, rn); |
| 746 | b7bcbe95 | bellard | gen_mov_F1_vreg(dp, rm); |
| 747 | b7bcbe95 | bellard | } |
| 748 | b7bcbe95 | bellard | |
| 749 | b7bcbe95 | bellard | for (;;) {
|
| 750 | b7bcbe95 | bellard | /* Perform the calculation. */
|
| 751 | b7bcbe95 | bellard | switch (op) {
|
| 752 | b7bcbe95 | bellard | case 0: /* mac: fd + (fn * fm) */ |
| 753 | b7bcbe95 | bellard | gen_vfp_mul(dp); |
| 754 | b7bcbe95 | bellard | gen_mov_F1_vreg(dp, rd); |
| 755 | b7bcbe95 | bellard | gen_vfp_add(dp); |
| 756 | b7bcbe95 | bellard | break;
|
| 757 | b7bcbe95 | bellard | case 1: /* nmac: fd - (fn * fm) */ |
| 758 | b7bcbe95 | bellard | gen_vfp_mul(dp); |
| 759 | b7bcbe95 | bellard | gen_vfp_neg(dp); |
| 760 | b7bcbe95 | bellard | gen_mov_F1_vreg(dp, rd); |
| 761 | b7bcbe95 | bellard | gen_vfp_add(dp); |
| 762 | b7bcbe95 | bellard | break;
|
| 763 | b7bcbe95 | bellard | case 2: /* msc: -fd + (fn * fm) */ |
| 764 | b7bcbe95 | bellard | gen_vfp_mul(dp); |
| 765 | b7bcbe95 | bellard | gen_mov_F1_vreg(dp, rd); |
| 766 | b7bcbe95 | bellard | gen_vfp_sub(dp); |
| 767 | b7bcbe95 | bellard | break;
|
| 768 | b7bcbe95 | bellard | case 3: /* nmsc: -fd - (fn * fm) */ |
| 769 | b7bcbe95 | bellard | gen_vfp_mul(dp); |
| 770 | b7bcbe95 | bellard | gen_mov_F1_vreg(dp, rd); |
| 771 | b7bcbe95 | bellard | gen_vfp_add(dp); |
| 772 | b7bcbe95 | bellard | gen_vfp_neg(dp); |
| 773 | b7bcbe95 | bellard | break;
|
| 774 | b7bcbe95 | bellard | case 4: /* mul: fn * fm */ |
| 775 | b7bcbe95 | bellard | gen_vfp_mul(dp); |
| 776 | b7bcbe95 | bellard | break;
|
| 777 | b7bcbe95 | bellard | case 5: /* nmul: -(fn * fm) */ |
| 778 | b7bcbe95 | bellard | gen_vfp_mul(dp); |
| 779 | b7bcbe95 | bellard | gen_vfp_neg(dp); |
| 780 | b7bcbe95 | bellard | break;
|
| 781 | b7bcbe95 | bellard | case 6: /* add: fn + fm */ |
| 782 | b7bcbe95 | bellard | gen_vfp_add(dp); |
| 783 | b7bcbe95 | bellard | break;
|
| 784 | b7bcbe95 | bellard | case 7: /* sub: fn - fm */ |
| 785 | b7bcbe95 | bellard | gen_vfp_sub(dp); |
| 786 | b7bcbe95 | bellard | break;
|
| 787 | b7bcbe95 | bellard | case 8: /* div: fn / fm */ |
| 788 | b7bcbe95 | bellard | gen_vfp_div(dp); |
| 789 | b7bcbe95 | bellard | break;
|
| 790 | b7bcbe95 | bellard | case 15: /* extension space */ |
| 791 | b7bcbe95 | bellard | switch (rn) {
|
| 792 | b7bcbe95 | bellard | case 0: /* cpy */ |
| 793 | b7bcbe95 | bellard | /* no-op */
|
| 794 | b7bcbe95 | bellard | break;
|
| 795 | b7bcbe95 | bellard | case 1: /* abs */ |
| 796 | b7bcbe95 | bellard | gen_vfp_abs(dp); |
| 797 | b7bcbe95 | bellard | break;
|
| 798 | b7bcbe95 | bellard | case 2: /* neg */ |
| 799 | b7bcbe95 | bellard | gen_vfp_neg(dp); |
| 800 | b7bcbe95 | bellard | break;
|
| 801 | b7bcbe95 | bellard | case 3: /* sqrt */ |
| 802 | b7bcbe95 | bellard | gen_vfp_sqrt(dp); |
| 803 | b7bcbe95 | bellard | break;
|
| 804 | b7bcbe95 | bellard | case 8: /* cmp */ |
| 805 | b7bcbe95 | bellard | gen_vfp_cmp(dp); |
| 806 | b7bcbe95 | bellard | break;
|
| 807 | b7bcbe95 | bellard | case 9: /* cmpe */ |
| 808 | b7bcbe95 | bellard | gen_vfp_cmpe(dp); |
| 809 | b7bcbe95 | bellard | break;
|
| 810 | b7bcbe95 | bellard | case 10: /* cmpz */ |
| 811 | b7bcbe95 | bellard | gen_vfp_cmp(dp); |
| 812 | b7bcbe95 | bellard | break;
|
| 813 | b7bcbe95 | bellard | case 11: /* cmpez */ |
| 814 | b7bcbe95 | bellard | gen_vfp_F1_ld0(dp); |
| 815 | b7bcbe95 | bellard | gen_vfp_cmpe(dp); |
| 816 | b7bcbe95 | bellard | break;
|
| 817 | b7bcbe95 | bellard | case 15: /* single<->double conversion */ |
| 818 | b7bcbe95 | bellard | if (dp)
|
| 819 | b7bcbe95 | bellard | gen_op_vfp_fcvtsd(); |
| 820 | b7bcbe95 | bellard | else
|
| 821 | b7bcbe95 | bellard | gen_op_vfp_fcvtds(); |
| 822 | b7bcbe95 | bellard | break;
|
| 823 | b7bcbe95 | bellard | case 16: /* fuito */ |
| 824 | b7bcbe95 | bellard | gen_vfp_uito(dp); |
| 825 | b7bcbe95 | bellard | break;
|
| 826 | b7bcbe95 | bellard | case 17: /* fsito */ |
| 827 | b7bcbe95 | bellard | gen_vfp_sito(dp); |
| 828 | b7bcbe95 | bellard | break;
|
| 829 | b7bcbe95 | bellard | case 24: /* ftoui */ |
| 830 | b7bcbe95 | bellard | gen_vfp_toui(dp); |
| 831 | b7bcbe95 | bellard | break;
|
| 832 | b7bcbe95 | bellard | case 25: /* ftouiz */ |
| 833 | b7bcbe95 | bellard | gen_vfp_touiz(dp); |
| 834 | b7bcbe95 | bellard | break;
|
| 835 | b7bcbe95 | bellard | case 26: /* ftosi */ |
| 836 | b7bcbe95 | bellard | gen_vfp_tosi(dp); |
| 837 | b7bcbe95 | bellard | break;
|
| 838 | b7bcbe95 | bellard | case 27: /* ftosiz */ |
| 839 | b7bcbe95 | bellard | gen_vfp_tosiz(dp); |
| 840 | b7bcbe95 | bellard | break;
|
| 841 | b7bcbe95 | bellard | default: /* undefined */ |
| 842 | b7bcbe95 | bellard | printf ("rn:%d\n", rn);
|
| 843 | b7bcbe95 | bellard | return 1; |
| 844 | b7bcbe95 | bellard | } |
| 845 | b7bcbe95 | bellard | break;
|
| 846 | b7bcbe95 | bellard | default: /* undefined */ |
| 847 | b7bcbe95 | bellard | printf ("op:%d\n", op);
|
| 848 | b7bcbe95 | bellard | return 1; |
| 849 | b7bcbe95 | bellard | } |
| 850 | b7bcbe95 | bellard | |
| 851 | b7bcbe95 | bellard | /* Write back the result. */
|
| 852 | b7bcbe95 | bellard | if (op == 15 && (rn >= 8 && rn <= 11)) |
| 853 | b7bcbe95 | bellard | ; /* Comparison, do nothing. */
|
| 854 | b7bcbe95 | bellard | else if (op == 15 && rn > 17) |
| 855 | b7bcbe95 | bellard | /* Integer result. */
|
| 856 | b7bcbe95 | bellard | gen_mov_vreg_F0(0, rd);
|
| 857 | b7bcbe95 | bellard | else if (op == 15 && rn == 15) |
| 858 | b7bcbe95 | bellard | /* conversion */
|
| 859 | b7bcbe95 | bellard | gen_mov_vreg_F0(!dp, rd); |
| 860 | b7bcbe95 | bellard | else
|
| 861 | b7bcbe95 | bellard | gen_mov_vreg_F0(dp, rd); |
| 862 | b7bcbe95 | bellard | |
| 863 | b7bcbe95 | bellard | /* break out of the loop if we have finished */
|
| 864 | b7bcbe95 | bellard | if (veclen == 0) |
| 865 | b7bcbe95 | bellard | break;
|
| 866 | b7bcbe95 | bellard | |
| 867 | b7bcbe95 | bellard | if (op == 15 && delta_m == 0) { |
| 868 | b7bcbe95 | bellard | /* single source one-many */
|
| 869 | b7bcbe95 | bellard | while (veclen--) {
|
| 870 | b7bcbe95 | bellard | rd = ((rd + delta_d) & (bank_mask - 1))
|
| 871 | b7bcbe95 | bellard | | (rd & bank_mask); |
| 872 | b7bcbe95 | bellard | gen_mov_vreg_F0(dp, rd); |
| 873 | b7bcbe95 | bellard | } |
| 874 | b7bcbe95 | bellard | break;
|
| 875 | b7bcbe95 | bellard | } |
| 876 | b7bcbe95 | bellard | /* Setup the next operands. */
|
| 877 | b7bcbe95 | bellard | veclen--; |
| 878 | b7bcbe95 | bellard | rd = ((rd + delta_d) & (bank_mask - 1))
|
| 879 | b7bcbe95 | bellard | | (rd & bank_mask); |
| 880 | b7bcbe95 | bellard | |
| 881 | b7bcbe95 | bellard | if (op == 15) { |
| 882 | b7bcbe95 | bellard | /* One source operand. */
|
| 883 | b7bcbe95 | bellard | rm = ((rm + delta_m) & (bank_mask - 1))
|
| 884 | b7bcbe95 | bellard | | (rm & bank_mask); |
| 885 | b7bcbe95 | bellard | gen_mov_F0_vreg(dp, rm); |
| 886 | b7bcbe95 | bellard | } else {
|
| 887 | b7bcbe95 | bellard | /* Two source operands. */
|
| 888 | b7bcbe95 | bellard | rn = ((rn + delta_d) & (bank_mask - 1))
|
| 889 | b7bcbe95 | bellard | | (rn & bank_mask); |
| 890 | b7bcbe95 | bellard | gen_mov_F0_vreg(dp, rn); |
| 891 | b7bcbe95 | bellard | if (delta_m) {
|
| 892 | b7bcbe95 | bellard | rm = ((rm + delta_m) & (bank_mask - 1))
|
| 893 | b7bcbe95 | bellard | | (rm & bank_mask); |
| 894 | b7bcbe95 | bellard | gen_mov_F1_vreg(dp, rm); |
| 895 | b7bcbe95 | bellard | } |
| 896 | b7bcbe95 | bellard | } |
| 897 | b7bcbe95 | bellard | } |
| 898 | b7bcbe95 | bellard | } |
| 899 | b7bcbe95 | bellard | break;
|
| 900 | b7bcbe95 | bellard | case 0xc: |
| 901 | b7bcbe95 | bellard | case 0xd: |
| 902 | b7bcbe95 | bellard | if (dp && (insn & (1 << 22))) { |
| 903 | b7bcbe95 | bellard | /* two-register transfer */
|
| 904 | b7bcbe95 | bellard | rn = (insn >> 16) & 0xf; |
| 905 | b7bcbe95 | bellard | rd = (insn >> 12) & 0xf; |
| 906 | b7bcbe95 | bellard | if (dp) {
|
| 907 | b7bcbe95 | bellard | if (insn & (1 << 5)) |
| 908 | b7bcbe95 | bellard | return 1; |
| 909 | b7bcbe95 | bellard | rm = insn & 0xf;
|
| 910 | b7bcbe95 | bellard | } else
|
| 911 | b7bcbe95 | bellard | rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1); |
| 912 | b7bcbe95 | bellard | |
| 913 | b7bcbe95 | bellard | if (insn & (1 << 20)) { |
| 914 | b7bcbe95 | bellard | /* vfp->arm */
|
| 915 | b7bcbe95 | bellard | if (dp) {
|
| 916 | b7bcbe95 | bellard | gen_mov_F0_vreg(1, rm);
|
| 917 | b7bcbe95 | bellard | gen_op_vfp_mrrd(); |
| 918 | b7bcbe95 | bellard | gen_movl_reg_T0(s, rd); |
| 919 | b7bcbe95 | bellard | gen_movl_reg_T1(s, rn); |
| 920 | b7bcbe95 | bellard | } else {
|
| 921 | b7bcbe95 | bellard | gen_mov_F0_vreg(0, rm);
|
| 922 | b7bcbe95 | bellard | gen_op_vfp_mrs(); |
| 923 | b7bcbe95 | bellard | gen_movl_reg_T0(s, rn); |
| 924 | b7bcbe95 | bellard | gen_mov_F0_vreg(0, rm + 1); |
| 925 | b7bcbe95 | bellard | gen_op_vfp_mrs(); |
| 926 | b7bcbe95 | bellard | gen_movl_reg_T0(s, rd); |
| 927 | b7bcbe95 | bellard | } |
| 928 | b7bcbe95 | bellard | } else {
|
| 929 | b7bcbe95 | bellard | /* arm->vfp */
|
| 930 | b7bcbe95 | bellard | if (dp) {
|
| 931 | b7bcbe95 | bellard | gen_movl_T0_reg(s, rd); |
| 932 | b7bcbe95 | bellard | gen_movl_T1_reg(s, rn); |
| 933 | b7bcbe95 | bellard | gen_op_vfp_mdrr(); |
| 934 | b7bcbe95 | bellard | gen_mov_vreg_F0(1, rm);
|
| 935 | b7bcbe95 | bellard | } else {
|
| 936 | b7bcbe95 | bellard | gen_movl_T0_reg(s, rn); |
| 937 | b7bcbe95 | bellard | gen_op_vfp_msr(); |
| 938 | b7bcbe95 | bellard | gen_mov_vreg_F0(0, rm);
|
| 939 | b7bcbe95 | bellard | gen_movl_T0_reg(s, rd); |
| 940 | b7bcbe95 | bellard | gen_op_vfp_msr(); |
| 941 | b7bcbe95 | bellard | gen_mov_vreg_F0(0, rm + 1); |
| 942 | b7bcbe95 | bellard | } |
| 943 | b7bcbe95 | bellard | } |
| 944 | b7bcbe95 | bellard | } else {
|
| 945 | b7bcbe95 | bellard | /* Load/store */
|
| 946 | b7bcbe95 | bellard | rn = (insn >> 16) & 0xf; |
| 947 | b7bcbe95 | bellard | if (dp)
|
| 948 | b7bcbe95 | bellard | rd = (insn >> 12) & 0xf; |
| 949 | b7bcbe95 | bellard | else
|
| 950 | b7bcbe95 | bellard | rd = ((insn >> 11) & 0x1e) | ((insn >> 22) & 1); |
| 951 | b7bcbe95 | bellard | gen_movl_T1_reg(s, rn); |
| 952 | b7bcbe95 | bellard | if ((insn & 0x01200000) == 0x01000000) { |
| 953 | b7bcbe95 | bellard | /* Single load/store */
|
| 954 | b7bcbe95 | bellard | offset = (insn & 0xff) << 2; |
| 955 | b7bcbe95 | bellard | if ((insn & (1 << 23)) == 0) |
| 956 | b7bcbe95 | bellard | offset = -offset; |
| 957 | b7bcbe95 | bellard | gen_op_addl_T1_im(offset); |
| 958 | b7bcbe95 | bellard | if (insn & (1 << 20)) { |
| 959 | b5ff1b31 | bellard | gen_vfp_ld(s, dp); |
| 960 | b7bcbe95 | bellard | gen_mov_vreg_F0(dp, rd); |
| 961 | b7bcbe95 | bellard | } else {
|
| 962 | b7bcbe95 | bellard | gen_mov_F0_vreg(dp, rd); |
| 963 | b5ff1b31 | bellard | gen_vfp_st(s, dp); |
| 964 | b7bcbe95 | bellard | } |
| 965 | b7bcbe95 | bellard | } else {
|
| 966 | b7bcbe95 | bellard | /* load/store multiple */
|
| 967 | b7bcbe95 | bellard | if (dp)
|
| 968 | b7bcbe95 | bellard | n = (insn >> 1) & 0x7f; |
| 969 | b7bcbe95 | bellard | else
|
| 970 | b7bcbe95 | bellard | n = insn & 0xff;
|
| 971 | b7bcbe95 | bellard | |
| 972 | b7bcbe95 | bellard | if (insn & (1 << 24)) /* pre-decrement */ |
| 973 | b7bcbe95 | bellard | gen_op_addl_T1_im(-((insn & 0xff) << 2)); |
| 974 | b7bcbe95 | bellard | |
| 975 | b7bcbe95 | bellard | if (dp)
|
| 976 | b7bcbe95 | bellard | offset = 8;
|
| 977 | b7bcbe95 | bellard | else
|
| 978 | b7bcbe95 | bellard | offset = 4;
|
| 979 | b7bcbe95 | bellard | for (i = 0; i < n; i++) { |
| 980 | b7bcbe95 | bellard | if (insn & (1 << 20)) { |
| 981 | b7bcbe95 | bellard | /* load */
|
| 982 | b5ff1b31 | bellard | gen_vfp_ld(s, dp); |
| 983 | b7bcbe95 | bellard | gen_mov_vreg_F0(dp, rd + i); |
| 984 | b7bcbe95 | bellard | } else {
|
| 985 | b7bcbe95 | bellard | /* store */
|
| 986 | b7bcbe95 | bellard | gen_mov_F0_vreg(dp, rd + i); |
| 987 | b5ff1b31 | bellard | gen_vfp_st(s, dp); |
| 988 | b7bcbe95 | bellard | } |
| 989 | b7bcbe95 | bellard | gen_op_addl_T1_im(offset); |
| 990 | b7bcbe95 | bellard | } |
| 991 | b7bcbe95 | bellard | if (insn & (1 << 21)) { |
| 992 | b7bcbe95 | bellard | /* writeback */
|
| 993 | b7bcbe95 | bellard | if (insn & (1 << 24)) |
| 994 | b7bcbe95 | bellard | offset = -offset * n; |
| 995 | b7bcbe95 | bellard | else if (dp && (insn & 1)) |
| 996 | b7bcbe95 | bellard | offset = 4;
|
| 997 | b7bcbe95 | bellard | else
|
| 998 | b7bcbe95 | bellard | offset = 0;
|
| 999 | b7bcbe95 | bellard | |
| 1000 | b7bcbe95 | bellard | if (offset != 0) |
| 1001 | b7bcbe95 | bellard | gen_op_addl_T1_im(offset); |
| 1002 | b7bcbe95 | bellard | gen_movl_reg_T1(s, rn); |
| 1003 | b7bcbe95 | bellard | } |
| 1004 | b7bcbe95 | bellard | } |
| 1005 | b7bcbe95 | bellard | } |
| 1006 | b7bcbe95 | bellard | break;
|
| 1007 | b7bcbe95 | bellard | default:
|
| 1008 | b7bcbe95 | bellard | /* Should never happen. */
|
| 1009 | b7bcbe95 | bellard | return 1; |
| 1010 | b7bcbe95 | bellard | } |
| 1011 | b7bcbe95 | bellard | return 0; |
| 1012 | b7bcbe95 | bellard | } |
| 1013 | b7bcbe95 | bellard | |
| 1014 | 6e256c93 | bellard | static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest) |
| 1015 | c53be334 | bellard | {
|
| 1016 | 6e256c93 | bellard | TranslationBlock *tb; |
| 1017 | 6e256c93 | bellard | |
| 1018 | 6e256c93 | bellard | tb = s->tb; |
| 1019 | 6e256c93 | bellard | if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
|
| 1020 | 6e256c93 | bellard | if (n == 0) |
| 1021 | 6e256c93 | bellard | gen_op_goto_tb0(TBPARAM(tb)); |
| 1022 | 6e256c93 | bellard | else
|
| 1023 | 6e256c93 | bellard | gen_op_goto_tb1(TBPARAM(tb)); |
| 1024 | 6e256c93 | bellard | gen_op_movl_T0_im(dest); |
| 1025 | 6e256c93 | bellard | gen_op_movl_r15_T0(); |
| 1026 | 6e256c93 | bellard | gen_op_movl_T0_im((long)tb + n);
|
| 1027 | 6e256c93 | bellard | gen_op_exit_tb(); |
| 1028 | 6e256c93 | bellard | } else {
|
| 1029 | 6e256c93 | bellard | gen_op_movl_T0_im(dest); |
| 1030 | 6e256c93 | bellard | gen_op_movl_r15_T0(); |
| 1031 | 6e256c93 | bellard | gen_op_movl_T0_0(); |
| 1032 | 6e256c93 | bellard | gen_op_exit_tb(); |
| 1033 | 6e256c93 | bellard | } |
| 1034 | c53be334 | bellard | } |
| 1035 | c53be334 | bellard | |
| 1036 | 8aaca4c0 | bellard | static inline void gen_jmp (DisasContext *s, uint32_t dest) |
| 1037 | 8aaca4c0 | bellard | {
|
| 1038 | 8aaca4c0 | bellard | if (__builtin_expect(s->singlestep_enabled, 0)) { |
| 1039 | 8aaca4c0 | bellard | /* An indirect jump so that we still trigger the debug exception. */
|
| 1040 | 5899f386 | bellard | if (s->thumb)
|
| 1041 | 5899f386 | bellard | dest |= 1;
|
| 1042 | 8aaca4c0 | bellard | gen_op_movl_T0_im(dest); |
| 1043 | 8aaca4c0 | bellard | gen_bx(s); |
| 1044 | 8aaca4c0 | bellard | } else {
|
| 1045 | 6e256c93 | bellard | gen_goto_tb(s, 0, dest);
|
| 1046 | 8aaca4c0 | bellard | s->is_jmp = DISAS_TB_JUMP; |
| 1047 | 8aaca4c0 | bellard | } |
| 1048 | 8aaca4c0 | bellard | } |
| 1049 | 8aaca4c0 | bellard | |
| 1050 | b5ff1b31 | bellard | static inline void gen_mulxy(int x, int y) |
| 1051 | b5ff1b31 | bellard | {
|
| 1052 | ee097184 | bellard | if (x)
|
| 1053 | b5ff1b31 | bellard | gen_op_sarl_T0_im(16);
|
| 1054 | b5ff1b31 | bellard | else
|
| 1055 | b5ff1b31 | bellard | gen_op_sxth_T0(); |
| 1056 | ee097184 | bellard | if (y)
|
| 1057 | b5ff1b31 | bellard | gen_op_sarl_T1_im(16);
|
| 1058 | b5ff1b31 | bellard | else
|
| 1059 | b5ff1b31 | bellard | gen_op_sxth_T1(); |
| 1060 | b5ff1b31 | bellard | gen_op_mul_T0_T1(); |
| 1061 | b5ff1b31 | bellard | } |
| 1062 | b5ff1b31 | bellard | |
| 1063 | b5ff1b31 | bellard | /* Return the mask of PSR bits set by a MSR instruction. */
|
| 1064 | 2ae23e75 | pbrook | static uint32_t msr_mask(DisasContext *s, int flags, int spsr) { |
| 1065 | b5ff1b31 | bellard | uint32_t mask; |
| 1066 | b5ff1b31 | bellard | |
| 1067 | b5ff1b31 | bellard | mask = 0;
|
| 1068 | b5ff1b31 | bellard | if (flags & (1 << 0)) |
| 1069 | b5ff1b31 | bellard | mask |= 0xff;
|
| 1070 | b5ff1b31 | bellard | if (flags & (1 << 1)) |
| 1071 | b5ff1b31 | bellard | mask |= 0xff00;
|
| 1072 | b5ff1b31 | bellard | if (flags & (1 << 2)) |
| 1073 | b5ff1b31 | bellard | mask |= 0xff0000;
|
| 1074 | b5ff1b31 | bellard | if (flags & (1 << 3)) |
| 1075 | b5ff1b31 | bellard | mask |= 0xff000000;
|
| 1076 | 2ae23e75 | pbrook | /* Mask out undefined bits. */
|
| 1077 | 2ae23e75 | pbrook | mask &= 0xf90f03ff;
|
| 1078 | 2ae23e75 | pbrook | /* Mask out state bits. */
|
| 1079 | 2ae23e75 | pbrook | if (!spsr)
|
| 1080 | 2ae23e75 | pbrook | mask &= ~0x01000020;
|
| 1081 | b5ff1b31 | bellard | /* Mask out privileged bits. */
|
| 1082 | b5ff1b31 | bellard | if (IS_USER(s))
|
| 1083 | b5ff1b31 | bellard | mask &= 0xf80f0200;
|
| 1084 | b5ff1b31 | bellard | return mask;
|
| 1085 | b5ff1b31 | bellard | } |
| 1086 | b5ff1b31 | bellard | |
| 1087 | b5ff1b31 | bellard | /* Returns nonzero if access to the PSR is not permitted. */
|
| 1088 | b5ff1b31 | bellard | static int gen_set_psr_T0(DisasContext *s, uint32_t mask, int spsr) |
| 1089 | b5ff1b31 | bellard | {
|
| 1090 | b5ff1b31 | bellard | if (spsr) {
|
| 1091 | b5ff1b31 | bellard | /* ??? This is also undefined in system mode. */
|
| 1092 | b5ff1b31 | bellard | if (IS_USER(s))
|
| 1093 | b5ff1b31 | bellard | return 1; |
| 1094 | b5ff1b31 | bellard | gen_op_movl_spsr_T0(mask); |
| 1095 | b5ff1b31 | bellard | } else {
|
| 1096 | b5ff1b31 | bellard | gen_op_movl_cpsr_T0(mask); |
| 1097 | b5ff1b31 | bellard | } |
| 1098 | b5ff1b31 | bellard | gen_lookup_tb(s); |
| 1099 | b5ff1b31 | bellard | return 0; |
| 1100 | b5ff1b31 | bellard | } |
| 1101 | b5ff1b31 | bellard | |
| 1102 | b5ff1b31 | bellard | static void gen_exception_return(DisasContext *s) |
| 1103 | b5ff1b31 | bellard | {
|
| 1104 | b5ff1b31 | bellard | gen_op_movl_reg_TN[0][15](); |
| 1105 | b5ff1b31 | bellard | gen_op_movl_T0_spsr(); |
| 1106 | b5ff1b31 | bellard | gen_op_movl_cpsr_T0(0xffffffff);
|
| 1107 | b5ff1b31 | bellard | s->is_jmp = DISAS_UPDATE; |
| 1108 | b5ff1b31 | bellard | } |
| 1109 | b5ff1b31 | bellard | |
| 1110 | b7bcbe95 | bellard | static void disas_arm_insn(CPUState * env, DisasContext *s) |
| 1111 | 2c0262af | bellard | {
|
| 1112 | 2c0262af | bellard | unsigned int cond, insn, val, op1, i, shift, rm, rs, rn, rd, sh; |
| 1113 | 2c0262af | bellard | |
| 1114 | b5ff1b31 | bellard | insn = ldl_code(s->pc); |
| 1115 | 2c0262af | bellard | s->pc += 4;
|
| 1116 | 2c0262af | bellard | |
| 1117 | 2c0262af | bellard | cond = insn >> 28;
|
| 1118 | 99c475ab | bellard | if (cond == 0xf){ |
| 1119 | b7bcbe95 | bellard | /* Unconditional instructions. */
|
| 1120 | 99c475ab | bellard | if ((insn & 0x0d70f000) == 0x0550f000) |
| 1121 | 99c475ab | bellard | return; /* PLD */ |
| 1122 | 99c475ab | bellard | else if ((insn & 0x0e000000) == 0x0a000000) { |
| 1123 | 99c475ab | bellard | /* branch link and change to thumb (blx <offset>) */
|
| 1124 | 99c475ab | bellard | int32_t offset; |
| 1125 | 99c475ab | bellard | |
| 1126 | 99c475ab | bellard | val = (uint32_t)s->pc; |
| 1127 | 99c475ab | bellard | gen_op_movl_T0_im(val); |
| 1128 | 99c475ab | bellard | gen_movl_reg_T0(s, 14);
|
| 1129 | 99c475ab | bellard | /* Sign-extend the 24-bit offset */
|
| 1130 | 99c475ab | bellard | offset = (((int32_t)insn) << 8) >> 8; |
| 1131 | 99c475ab | bellard | /* offset * 4 + bit24 * 2 + (thumb bit) */
|
| 1132 | 99c475ab | bellard | val += (offset << 2) | ((insn >> 23) & 2) | 1; |
| 1133 | 99c475ab | bellard | /* pipeline offset */
|
| 1134 | 99c475ab | bellard | val += 4;
|
| 1135 | 99c475ab | bellard | gen_op_movl_T0_im(val); |
| 1136 | 99c475ab | bellard | gen_bx(s); |
| 1137 | 99c475ab | bellard | return;
|
| 1138 | b7bcbe95 | bellard | } else if ((insn & 0x0fe00000) == 0x0c400000) { |
| 1139 | b7bcbe95 | bellard | /* Coprocessor double register transfer. */
|
| 1140 | b7bcbe95 | bellard | } else if ((insn & 0x0f000010) == 0x0e000010) { |
| 1141 | b7bcbe95 | bellard | /* Additional coprocessor register transfer. */
|
| 1142 | b5ff1b31 | bellard | } else if ((insn & 0x0ff10010) == 0x01000000) { |
| 1143 | b5ff1b31 | bellard | /* cps (privileged) */
|
| 1144 | b5ff1b31 | bellard | } else if ((insn & 0x0ffffdff) == 0x01010000) { |
| 1145 | b5ff1b31 | bellard | /* setend */
|
| 1146 | b5ff1b31 | bellard | if (insn & (1 << 9)) { |
| 1147 | b5ff1b31 | bellard | /* BE8 mode not implemented. */
|
| 1148 | b5ff1b31 | bellard | goto illegal_op;
|
| 1149 | b5ff1b31 | bellard | } |
| 1150 | b5ff1b31 | bellard | return;
|
| 1151 | 99c475ab | bellard | } |
| 1152 | 2c0262af | bellard | goto illegal_op;
|
| 1153 | 99c475ab | bellard | } |
| 1154 | 2c0262af | bellard | if (cond != 0xe) { |
| 1155 | 2c0262af | bellard | /* if not always execute, we generate a conditional jump to
|
| 1156 | 2c0262af | bellard | next instruction */
|
| 1157 | e50e6a20 | bellard | s->condlabel = gen_new_label(); |
| 1158 | e50e6a20 | bellard | gen_test_cc[cond ^ 1](s->condlabel);
|
| 1159 | e50e6a20 | bellard | s->condjmp = 1;
|
| 1160 | e50e6a20 | bellard | //gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
|
| 1161 | e50e6a20 | bellard | //s->is_jmp = DISAS_JUMP_NEXT;
|
| 1162 | 2c0262af | bellard | } |
| 1163 | 99c475ab | bellard | if ((insn & 0x0f900000) == 0x03000000) { |
| 1164 | b5ff1b31 | bellard | if ((insn & 0x0fb0f000) != 0x0320f000) |
| 1165 | 99c475ab | bellard | goto illegal_op;
|
| 1166 | 99c475ab | bellard | /* CPSR = immediate */
|
| 1167 | 99c475ab | bellard | val = insn & 0xff;
|
| 1168 | 99c475ab | bellard | shift = ((insn >> 8) & 0xf) * 2; |
| 1169 | 99c475ab | bellard | if (shift)
|
| 1170 | 99c475ab | bellard | val = (val >> shift) | (val << (32 - shift));
|
| 1171 | 99c475ab | bellard | gen_op_movl_T0_im(val); |
| 1172 | 2ae23e75 | pbrook | i = ((insn & (1 << 22)) != 0); |
| 1173 | 2ae23e75 | pbrook | if (gen_set_psr_T0(s, msr_mask(s, (insn >> 16) & 0xf, i), i)) |
| 1174 | b5ff1b31 | bellard | goto illegal_op;
|
| 1175 | 99c475ab | bellard | } else if ((insn & 0x0f900000) == 0x01000000 |
| 1176 | 99c475ab | bellard | && (insn & 0x00000090) != 0x00000090) { |
| 1177 | 99c475ab | bellard | /* miscellaneous instructions */
|
| 1178 | 99c475ab | bellard | op1 = (insn >> 21) & 3; |
| 1179 | 99c475ab | bellard | sh = (insn >> 4) & 0xf; |
| 1180 | 99c475ab | bellard | rm = insn & 0xf;
|
| 1181 | 99c475ab | bellard | switch (sh) {
|
| 1182 | 99c475ab | bellard | case 0x0: /* move program status register */ |
| 1183 | 99c475ab | bellard | if (op1 & 1) { |
| 1184 | b5ff1b31 | bellard | /* PSR = reg */
|
| 1185 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1186 | 2ae23e75 | pbrook | i = ((op1 & 2) != 0); |
| 1187 | 2ae23e75 | pbrook | if (gen_set_psr_T0(s, msr_mask(s, (insn >> 16) & 0xf, i), i)) |
| 1188 | b5ff1b31 | bellard | goto illegal_op;
|
| 1189 | 99c475ab | bellard | } else {
|
| 1190 | 2ae23e75 | pbrook | /* reg = PSR */
|
| 1191 | 99c475ab | bellard | rd = (insn >> 12) & 0xf; |
| 1192 | b5ff1b31 | bellard | if (op1 & 2) { |
| 1193 | b5ff1b31 | bellard | if (IS_USER(s))
|
| 1194 | b5ff1b31 | bellard | goto illegal_op;
|
| 1195 | b5ff1b31 | bellard | gen_op_movl_T0_spsr(); |
| 1196 | b5ff1b31 | bellard | } else {
|
| 1197 | b5ff1b31 | bellard | gen_op_movl_T0_cpsr(); |
| 1198 | b5ff1b31 | bellard | } |
| 1199 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1200 | 99c475ab | bellard | } |
| 1201 | b8a9e8f1 | bellard | break;
|
| 1202 | 99c475ab | bellard | case 0x1: |
| 1203 | 99c475ab | bellard | if (op1 == 1) { |
| 1204 | 99c475ab | bellard | /* branch/exchange thumb (bx). */
|
| 1205 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1206 | 99c475ab | bellard | gen_bx(s); |
| 1207 | 99c475ab | bellard | } else if (op1 == 3) { |
| 1208 | 99c475ab | bellard | /* clz */
|
| 1209 | 99c475ab | bellard | rd = (insn >> 12) & 0xf; |
| 1210 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1211 | 99c475ab | bellard | gen_op_clz_T0(); |
| 1212 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1213 | 99c475ab | bellard | } else {
|
| 1214 | 99c475ab | bellard | goto illegal_op;
|
| 1215 | 99c475ab | bellard | } |
| 1216 | 99c475ab | bellard | break;
|
| 1217 | b5ff1b31 | bellard | case 0x2: |
| 1218 | b5ff1b31 | bellard | if (op1 == 1) { |
| 1219 | b5ff1b31 | bellard | ARCH(5J); /* bxj */ |
| 1220 | b5ff1b31 | bellard | /* Trivial implementation equivalent to bx. */
|
| 1221 | b5ff1b31 | bellard | gen_movl_T0_reg(s, rm); |
| 1222 | b5ff1b31 | bellard | gen_bx(s); |
| 1223 | b5ff1b31 | bellard | } else {
|
| 1224 | b5ff1b31 | bellard | goto illegal_op;
|
| 1225 | b5ff1b31 | bellard | } |
| 1226 | b5ff1b31 | bellard | break;
|
| 1227 | 99c475ab | bellard | case 0x3: |
| 1228 | 99c475ab | bellard | if (op1 != 1) |
| 1229 | 99c475ab | bellard | goto illegal_op;
|
| 1230 | 99c475ab | bellard | |
| 1231 | 99c475ab | bellard | /* branch link/exchange thumb (blx) */
|
| 1232 | 99c475ab | bellard | val = (uint32_t)s->pc; |
| 1233 | 99c475ab | bellard | gen_op_movl_T0_im(val); |
| 1234 | 99c475ab | bellard | gen_movl_reg_T0(s, 14);
|
| 1235 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1236 | 99c475ab | bellard | gen_bx(s); |
| 1237 | 99c475ab | bellard | break;
|
| 1238 | 99c475ab | bellard | case 0x5: /* saturating add/subtract */ |
| 1239 | 99c475ab | bellard | rd = (insn >> 12) & 0xf; |
| 1240 | 99c475ab | bellard | rn = (insn >> 16) & 0xf; |
| 1241 | ff8263a9 | bellard | gen_movl_T0_reg(s, rm); |
| 1242 | ff8263a9 | bellard | gen_movl_T1_reg(s, rn); |
| 1243 | ff8263a9 | bellard | if (op1 & 2) |
| 1244 | ff8263a9 | bellard | gen_op_double_T1_saturate(); |
| 1245 | 99c475ab | bellard | if (op1 & 1) |
| 1246 | 99c475ab | bellard | gen_op_subl_T0_T1_saturate(); |
| 1247 | 99c475ab | bellard | else
|
| 1248 | 99c475ab | bellard | gen_op_addl_T0_T1_saturate(); |
| 1249 | ff8263a9 | bellard | gen_movl_reg_T0(s, rd); |
| 1250 | 99c475ab | bellard | break;
|
| 1251 | 06c949e6 | pbrook | case 7: /* bkpt */ |
| 1252 | 06c949e6 | pbrook | gen_op_movl_T0_im((long)s->pc - 4); |
| 1253 | 06c949e6 | pbrook | gen_op_movl_reg_TN[0][15](); |
| 1254 | 06c949e6 | pbrook | gen_op_bkpt(); |
| 1255 | 06c949e6 | pbrook | s->is_jmp = DISAS_JUMP; |
| 1256 | 06c949e6 | pbrook | break;
|
| 1257 | 99c475ab | bellard | case 0x8: /* signed multiply */ |
| 1258 | 99c475ab | bellard | case 0xa: |
| 1259 | 99c475ab | bellard | case 0xc: |
| 1260 | 99c475ab | bellard | case 0xe: |
| 1261 | 99c475ab | bellard | rs = (insn >> 8) & 0xf; |
| 1262 | 99c475ab | bellard | rn = (insn >> 12) & 0xf; |
| 1263 | 99c475ab | bellard | rd = (insn >> 16) & 0xf; |
| 1264 | 99c475ab | bellard | if (op1 == 1) { |
| 1265 | 99c475ab | bellard | /* (32 * 16) >> 16 */
|
| 1266 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1267 | 99c475ab | bellard | gen_movl_T1_reg(s, rs); |
| 1268 | 99c475ab | bellard | if (sh & 4) |
| 1269 | 99c475ab | bellard | gen_op_sarl_T1_im(16);
|
| 1270 | 99c475ab | bellard | else
|
| 1271 | b5ff1b31 | bellard | gen_op_sxth_T1(); |
| 1272 | 99c475ab | bellard | gen_op_imulw_T0_T1(); |
| 1273 | 99c475ab | bellard | if ((sh & 2) == 0) { |
| 1274 | 99c475ab | bellard | gen_movl_T1_reg(s, rn); |
| 1275 | 99c475ab | bellard | gen_op_addl_T0_T1_setq(); |
| 1276 | 99c475ab | bellard | } |
| 1277 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1278 | 99c475ab | bellard | } else {
|
| 1279 | 99c475ab | bellard | /* 16 * 16 */
|
| 1280 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1281 | 99c475ab | bellard | gen_movl_T1_reg(s, rs); |
| 1282 | b5ff1b31 | bellard | gen_mulxy(sh & 2, sh & 4); |
| 1283 | 99c475ab | bellard | if (op1 == 2) { |
| 1284 | b5ff1b31 | bellard | gen_op_signbit_T1_T0(); |
| 1285 | 99c475ab | bellard | gen_op_addq_T0_T1(rn, rd); |
| 1286 | 99c475ab | bellard | gen_movl_reg_T0(s, rn); |
| 1287 | 99c475ab | bellard | gen_movl_reg_T1(s, rd); |
| 1288 | 99c475ab | bellard | } else {
|
| 1289 | 99c475ab | bellard | if (op1 == 0) { |
| 1290 | 99c475ab | bellard | gen_movl_T1_reg(s, rn); |
| 1291 | 99c475ab | bellard | gen_op_addl_T0_T1_setq(); |
| 1292 | 99c475ab | bellard | } |
| 1293 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1294 | 99c475ab | bellard | } |
| 1295 | 99c475ab | bellard | } |
| 1296 | 99c475ab | bellard | break;
|
| 1297 | 99c475ab | bellard | default:
|
| 1298 | 99c475ab | bellard | goto illegal_op;
|
| 1299 | 99c475ab | bellard | } |
| 1300 | 99c475ab | bellard | } else if (((insn & 0x0e000000) == 0 && |
| 1301 | 99c475ab | bellard | (insn & 0x00000090) != 0x90) || |
| 1302 | 99c475ab | bellard | ((insn & 0x0e000000) == (1 << 25))) { |
| 1303 | 2c0262af | bellard | int set_cc, logic_cc, shiftop;
|
| 1304 | 2c0262af | bellard | |
| 1305 | 2c0262af | bellard | op1 = (insn >> 21) & 0xf; |
| 1306 | 2c0262af | bellard | set_cc = (insn >> 20) & 1; |
| 1307 | 2c0262af | bellard | logic_cc = table_logic_cc[op1] & set_cc; |
| 1308 | 2c0262af | bellard | |
| 1309 | 2c0262af | bellard | /* data processing instruction */
|
| 1310 | 2c0262af | bellard | if (insn & (1 << 25)) { |
| 1311 | 2c0262af | bellard | /* immediate operand */
|
| 1312 | 2c0262af | bellard | val = insn & 0xff;
|
| 1313 | 2c0262af | bellard | shift = ((insn >> 8) & 0xf) * 2; |
| 1314 | 2c0262af | bellard | if (shift)
|
| 1315 | 2c0262af | bellard | val = (val >> shift) | (val << (32 - shift));
|
| 1316 | 2c0262af | bellard | gen_op_movl_T1_im(val); |
| 1317 | 7ff4d218 | bellard | if (logic_cc && shift)
|
| 1318 | 7ff4d218 | bellard | gen_op_mov_CF_T1(); |
| 1319 | 2c0262af | bellard | } else {
|
| 1320 | 2c0262af | bellard | /* register */
|
| 1321 | 2c0262af | bellard | rm = (insn) & 0xf;
|
| 1322 | 2c0262af | bellard | gen_movl_T1_reg(s, rm); |
| 1323 | 2c0262af | bellard | shiftop = (insn >> 5) & 3; |
| 1324 | 2c0262af | bellard | if (!(insn & (1 << 4))) { |
| 1325 | 2c0262af | bellard | shift = (insn >> 7) & 0x1f; |
| 1326 | 2c0262af | bellard | if (shift != 0) { |
| 1327 | 2c0262af | bellard | if (logic_cc) {
|
| 1328 | 2c0262af | bellard | gen_shift_T1_im_cc[shiftop](shift); |
| 1329 | 2c0262af | bellard | } else {
|
| 1330 | 2c0262af | bellard | gen_shift_T1_im[shiftop](shift); |
| 1331 | 2c0262af | bellard | } |
| 1332 | 1e8d4eec | bellard | } else if (shiftop != 0) { |
| 1333 | 1e8d4eec | bellard | if (logic_cc) {
|
| 1334 | 1e8d4eec | bellard | gen_shift_T1_0_cc[shiftop](); |
| 1335 | 1e8d4eec | bellard | } else {
|
| 1336 | 1e8d4eec | bellard | gen_shift_T1_0[shiftop](); |
| 1337 | 1e8d4eec | bellard | } |
| 1338 | 2c0262af | bellard | } |
| 1339 | 2c0262af | bellard | } else {
|
| 1340 | 2c0262af | bellard | rs = (insn >> 8) & 0xf; |
| 1341 | 2c0262af | bellard | gen_movl_T0_reg(s, rs); |
| 1342 | 2c0262af | bellard | if (logic_cc) {
|
| 1343 | 2c0262af | bellard | gen_shift_T1_T0_cc[shiftop](); |
| 1344 | 2c0262af | bellard | } else {
|
| 1345 | 2c0262af | bellard | gen_shift_T1_T0[shiftop](); |
| 1346 | 2c0262af | bellard | } |
| 1347 | 2c0262af | bellard | } |
| 1348 | 2c0262af | bellard | } |
| 1349 | 2c0262af | bellard | if (op1 != 0x0f && op1 != 0x0d) { |
| 1350 | 2c0262af | bellard | rn = (insn >> 16) & 0xf; |
| 1351 | 2c0262af | bellard | gen_movl_T0_reg(s, rn); |
| 1352 | 2c0262af | bellard | } |
| 1353 | 2c0262af | bellard | rd = (insn >> 12) & 0xf; |
| 1354 | 2c0262af | bellard | switch(op1) {
|
| 1355 | 2c0262af | bellard | case 0x00: |
| 1356 | 2c0262af | bellard | gen_op_andl_T0_T1(); |
| 1357 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1358 | 2c0262af | bellard | if (logic_cc)
|
| 1359 | 2c0262af | bellard | gen_op_logic_T0_cc(); |
| 1360 | 2c0262af | bellard | break;
|
| 1361 | 2c0262af | bellard | case 0x01: |
| 1362 | 2c0262af | bellard | gen_op_xorl_T0_T1(); |
| 1363 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1364 | 2c0262af | bellard | if (logic_cc)
|
| 1365 | 2c0262af | bellard | gen_op_logic_T0_cc(); |
| 1366 | 2c0262af | bellard | break;
|
| 1367 | 2c0262af | bellard | case 0x02: |
| 1368 | b5ff1b31 | bellard | if (set_cc && rd == 15) { |
| 1369 | b5ff1b31 | bellard | /* SUBS r15, ... is used for exception return. */
|
| 1370 | b5ff1b31 | bellard | if (IS_USER(s))
|
| 1371 | b5ff1b31 | bellard | goto illegal_op;
|
| 1372 | 2c0262af | bellard | gen_op_subl_T0_T1_cc(); |
| 1373 | b5ff1b31 | bellard | gen_exception_return(s); |
| 1374 | b5ff1b31 | bellard | } else {
|
| 1375 | b5ff1b31 | bellard | if (set_cc)
|
| 1376 | b5ff1b31 | bellard | gen_op_subl_T0_T1_cc(); |
| 1377 | b5ff1b31 | bellard | else
|
| 1378 | b5ff1b31 | bellard | gen_op_subl_T0_T1(); |
| 1379 | b5ff1b31 | bellard | gen_movl_reg_T0(s, rd); |
| 1380 | b5ff1b31 | bellard | } |
| 1381 | 2c0262af | bellard | break;
|
| 1382 | 2c0262af | bellard | case 0x03: |
| 1383 | 2c0262af | bellard | if (set_cc)
|
| 1384 | 2c0262af | bellard | gen_op_rsbl_T0_T1_cc(); |
| 1385 | 2c0262af | bellard | else
|
| 1386 | 2c0262af | bellard | gen_op_rsbl_T0_T1(); |
| 1387 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1388 | 2c0262af | bellard | break;
|
| 1389 | 2c0262af | bellard | case 0x04: |
| 1390 | 2c0262af | bellard | if (set_cc)
|
| 1391 | 2c0262af | bellard | gen_op_addl_T0_T1_cc(); |
| 1392 | 2c0262af | bellard | else
|
| 1393 | 2c0262af | bellard | gen_op_addl_T0_T1(); |
| 1394 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1395 | 2c0262af | bellard | break;
|
| 1396 | 2c0262af | bellard | case 0x05: |
| 1397 | 2c0262af | bellard | if (set_cc)
|
| 1398 | 2c0262af | bellard | gen_op_adcl_T0_T1_cc(); |
| 1399 | 2c0262af | bellard | else
|
| 1400 | 2c0262af | bellard | gen_op_adcl_T0_T1(); |
| 1401 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1402 | 2c0262af | bellard | break;
|
| 1403 | 2c0262af | bellard | case 0x06: |
| 1404 | 2c0262af | bellard | if (set_cc)
|
| 1405 | 2c0262af | bellard | gen_op_sbcl_T0_T1_cc(); |
| 1406 | 2c0262af | bellard | else
|
| 1407 | 2c0262af | bellard | gen_op_sbcl_T0_T1(); |
| 1408 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1409 | 2c0262af | bellard | break;
|
| 1410 | 2c0262af | bellard | case 0x07: |
| 1411 | 2c0262af | bellard | if (set_cc)
|
| 1412 | 2c0262af | bellard | gen_op_rscl_T0_T1_cc(); |
| 1413 | 2c0262af | bellard | else
|
| 1414 | 2c0262af | bellard | gen_op_rscl_T0_T1(); |
| 1415 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1416 | 2c0262af | bellard | break;
|
| 1417 | 2c0262af | bellard | case 0x08: |
| 1418 | 2c0262af | bellard | if (set_cc) {
|
| 1419 | 2c0262af | bellard | gen_op_andl_T0_T1(); |
| 1420 | 2c0262af | bellard | gen_op_logic_T0_cc(); |
| 1421 | 2c0262af | bellard | } |
| 1422 | 2c0262af | bellard | break;
|
| 1423 | 2c0262af | bellard | case 0x09: |
| 1424 | 2c0262af | bellard | if (set_cc) {
|
| 1425 | 2c0262af | bellard | gen_op_xorl_T0_T1(); |
| 1426 | 2c0262af | bellard | gen_op_logic_T0_cc(); |
| 1427 | 2c0262af | bellard | } |
| 1428 | 2c0262af | bellard | break;
|
| 1429 | 2c0262af | bellard | case 0x0a: |
| 1430 | 2c0262af | bellard | if (set_cc) {
|
| 1431 | 2c0262af | bellard | gen_op_subl_T0_T1_cc(); |
| 1432 | 2c0262af | bellard | } |
| 1433 | 2c0262af | bellard | break;
|
| 1434 | 2c0262af | bellard | case 0x0b: |
| 1435 | 2c0262af | bellard | if (set_cc) {
|
| 1436 | 2c0262af | bellard | gen_op_addl_T0_T1_cc(); |
| 1437 | 2c0262af | bellard | } |
| 1438 | 2c0262af | bellard | break;
|
| 1439 | 2c0262af | bellard | case 0x0c: |
| 1440 | 2c0262af | bellard | gen_op_orl_T0_T1(); |
| 1441 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1442 | 2c0262af | bellard | if (logic_cc)
|
| 1443 | 2c0262af | bellard | gen_op_logic_T0_cc(); |
| 1444 | 2c0262af | bellard | break;
|
| 1445 | 2c0262af | bellard | case 0x0d: |
| 1446 | b5ff1b31 | bellard | if (logic_cc && rd == 15) { |
| 1447 | b5ff1b31 | bellard | /* MOVS r15, ... is used for exception return. */
|
| 1448 | b5ff1b31 | bellard | if (IS_USER(s))
|
| 1449 | b5ff1b31 | bellard | goto illegal_op;
|
| 1450 | b5ff1b31 | bellard | gen_op_movl_T0_T1(); |
| 1451 | b5ff1b31 | bellard | gen_exception_return(s); |
| 1452 | b5ff1b31 | bellard | } else {
|
| 1453 | b5ff1b31 | bellard | gen_movl_reg_T1(s, rd); |
| 1454 | b5ff1b31 | bellard | if (logic_cc)
|
| 1455 | b5ff1b31 | bellard | gen_op_logic_T1_cc(); |
| 1456 | b5ff1b31 | bellard | } |
| 1457 | 2c0262af | bellard | break;
|
| 1458 | 2c0262af | bellard | case 0x0e: |
| 1459 | 2c0262af | bellard | gen_op_bicl_T0_T1(); |
| 1460 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1461 | 2c0262af | bellard | if (logic_cc)
|
| 1462 | 2c0262af | bellard | gen_op_logic_T0_cc(); |
| 1463 | 2c0262af | bellard | break;
|
| 1464 | 2c0262af | bellard | default:
|
| 1465 | 2c0262af | bellard | case 0x0f: |
| 1466 | 2c0262af | bellard | gen_op_notl_T1(); |
| 1467 | 2c0262af | bellard | gen_movl_reg_T1(s, rd); |
| 1468 | 2c0262af | bellard | if (logic_cc)
|
| 1469 | 2c0262af | bellard | gen_op_logic_T1_cc(); |
| 1470 | 2c0262af | bellard | break;
|
| 1471 | 2c0262af | bellard | } |
| 1472 | 2c0262af | bellard | } else {
|
| 1473 | 2c0262af | bellard | /* other instructions */
|
| 1474 | 2c0262af | bellard | op1 = (insn >> 24) & 0xf; |
| 1475 | 2c0262af | bellard | switch(op1) {
|
| 1476 | 2c0262af | bellard | case 0x0: |
| 1477 | 2c0262af | bellard | case 0x1: |
| 1478 | 99c475ab | bellard | /* multiplies, extra load/stores */
|
| 1479 | 2c0262af | bellard | sh = (insn >> 5) & 3; |
| 1480 | 2c0262af | bellard | if (sh == 0) { |
| 1481 | 2c0262af | bellard | if (op1 == 0x0) { |
| 1482 | 2c0262af | bellard | rd = (insn >> 16) & 0xf; |
| 1483 | 2c0262af | bellard | rn = (insn >> 12) & 0xf; |
| 1484 | 2c0262af | bellard | rs = (insn >> 8) & 0xf; |
| 1485 | 2c0262af | bellard | rm = (insn) & 0xf;
|
| 1486 | 99c475ab | bellard | if (((insn >> 22) & 3) == 0) { |
| 1487 | 2c0262af | bellard | /* 32 bit mul */
|
| 1488 | 2c0262af | bellard | gen_movl_T0_reg(s, rs); |
| 1489 | 2c0262af | bellard | gen_movl_T1_reg(s, rm); |
| 1490 | 2c0262af | bellard | gen_op_mul_T0_T1(); |
| 1491 | 2c0262af | bellard | if (insn & (1 << 21)) { |
| 1492 | 2c0262af | bellard | gen_movl_T1_reg(s, rn); |
| 1493 | 2c0262af | bellard | gen_op_addl_T0_T1(); |
| 1494 | 2c0262af | bellard | } |
| 1495 | 2c0262af | bellard | if (insn & (1 << 20)) |
| 1496 | 2c0262af | bellard | gen_op_logic_T0_cc(); |
| 1497 | 2c0262af | bellard | gen_movl_reg_T0(s, rd); |
| 1498 | 2c0262af | bellard | } else {
|
| 1499 | 2c0262af | bellard | /* 64 bit mul */
|
| 1500 | 2c0262af | bellard | gen_movl_T0_reg(s, rs); |
| 1501 | 2c0262af | bellard | gen_movl_T1_reg(s, rm); |
| 1502 | 2c0262af | bellard | if (insn & (1 << 22)) |
| 1503 | 2c0262af | bellard | gen_op_imull_T0_T1(); |
| 1504 | 2e134c9c | bellard | else
|
| 1505 | 2e134c9c | bellard | gen_op_mull_T0_T1(); |
| 1506 | 99c475ab | bellard | if (insn & (1 << 21)) /* mult accumulate */ |
| 1507 | 2c0262af | bellard | gen_op_addq_T0_T1(rn, rd); |
| 1508 | 99c475ab | bellard | if (!(insn & (1 << 23))) { /* double accumulate */ |
| 1509 | b5ff1b31 | bellard | ARCH(6);
|
| 1510 | 99c475ab | bellard | gen_op_addq_lo_T0_T1(rn); |
| 1511 | 99c475ab | bellard | gen_op_addq_lo_T0_T1(rd); |
| 1512 | 99c475ab | bellard | } |
| 1513 | 2c0262af | bellard | if (insn & (1 << 20)) |
| 1514 | 2c0262af | bellard | gen_op_logicq_cc(); |
| 1515 | 2c0262af | bellard | gen_movl_reg_T0(s, rn); |
| 1516 | 2c0262af | bellard | gen_movl_reg_T1(s, rd); |
| 1517 | 2c0262af | bellard | } |
| 1518 | 2c0262af | bellard | } else {
|
| 1519 | 2c0262af | bellard | rn = (insn >> 16) & 0xf; |
| 1520 | 2c0262af | bellard | rd = (insn >> 12) & 0xf; |
| 1521 | 99c475ab | bellard | if (insn & (1 << 23)) { |
| 1522 | 99c475ab | bellard | /* load/store exclusive */
|
| 1523 | 99c475ab | bellard | goto illegal_op;
|
| 1524 | 2c0262af | bellard | } else {
|
| 1525 | 99c475ab | bellard | /* SWP instruction */
|
| 1526 | 99c475ab | bellard | rm = (insn) & 0xf;
|
| 1527 | 99c475ab | bellard | |
| 1528 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1529 | 99c475ab | bellard | gen_movl_T1_reg(s, rn); |
| 1530 | 99c475ab | bellard | if (insn & (1 << 22)) { |
| 1531 | b5ff1b31 | bellard | gen_ldst(swpb, s); |
| 1532 | 99c475ab | bellard | } else {
|
| 1533 | b5ff1b31 | bellard | gen_ldst(swpl, s); |
| 1534 | 99c475ab | bellard | } |
| 1535 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1536 | 2c0262af | bellard | } |
| 1537 | 2c0262af | bellard | } |
| 1538 | 2c0262af | bellard | } else {
|
| 1539 | 191f9a93 | pbrook | int address_offset;
|
| 1540 | 5fd46862 | pbrook | int load;
|
| 1541 | 99c475ab | bellard | /* Misc load/store */
|
| 1542 | 2c0262af | bellard | rn = (insn >> 16) & 0xf; |
| 1543 | 2c0262af | bellard | rd = (insn >> 12) & 0xf; |
| 1544 | 2c0262af | bellard | gen_movl_T1_reg(s, rn); |
| 1545 | beddab75 | bellard | if (insn & (1 << 24)) |
| 1546 | 191f9a93 | pbrook | gen_add_datah_offset(s, insn, 0);
|
| 1547 | 191f9a93 | pbrook | address_offset = 0;
|
| 1548 | 2c0262af | bellard | if (insn & (1 << 20)) { |
| 1549 | 2c0262af | bellard | /* load */
|
| 1550 | 2c0262af | bellard | switch(sh) {
|
| 1551 | 2c0262af | bellard | case 1: |
| 1552 | b5ff1b31 | bellard | gen_ldst(lduw, s); |
| 1553 | 2c0262af | bellard | break;
|
| 1554 | 2c0262af | bellard | case 2: |
| 1555 | b5ff1b31 | bellard | gen_ldst(ldsb, s); |
| 1556 | 2c0262af | bellard | break;
|
| 1557 | 2c0262af | bellard | default:
|
| 1558 | 2c0262af | bellard | case 3: |
| 1559 | b5ff1b31 | bellard | gen_ldst(ldsw, s); |
| 1560 | 2c0262af | bellard | break;
|
| 1561 | 2c0262af | bellard | } |
| 1562 | 5fd46862 | pbrook | load = 1;
|
| 1563 | 99c475ab | bellard | } else if (sh & 2) { |
| 1564 | 99c475ab | bellard | /* doubleword */
|
| 1565 | 99c475ab | bellard | if (sh & 1) { |
| 1566 | 99c475ab | bellard | /* store */
|
| 1567 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 1568 | b5ff1b31 | bellard | gen_ldst(stl, s); |
| 1569 | 99c475ab | bellard | gen_op_addl_T1_im(4);
|
| 1570 | 99c475ab | bellard | gen_movl_T0_reg(s, rd + 1);
|
| 1571 | b5ff1b31 | bellard | gen_ldst(stl, s); |
| 1572 | 5fd46862 | pbrook | load = 0;
|
| 1573 | 99c475ab | bellard | } else {
|
| 1574 | 99c475ab | bellard | /* load */
|
| 1575 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 1576 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1577 | 99c475ab | bellard | gen_op_addl_T1_im(4);
|
| 1578 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 1579 | 5fd46862 | pbrook | rd++; |
| 1580 | 5fd46862 | pbrook | load = 1;
|
| 1581 | 99c475ab | bellard | } |
| 1582 | 191f9a93 | pbrook | address_offset = -4;
|
| 1583 | 2c0262af | bellard | } else {
|
| 1584 | 2c0262af | bellard | /* store */
|
| 1585 | e748ba4f | bellard | gen_movl_T0_reg(s, rd); |
| 1586 | b5ff1b31 | bellard | gen_ldst(stw, s); |
| 1587 | 5fd46862 | pbrook | load = 0;
|
| 1588 | 2c0262af | bellard | } |
| 1589 | 5fd46862 | pbrook | /* Perform base writeback before the loaded value to
|
| 1590 | 5fd46862 | pbrook | ensure correct behavior with overlapping index registers.
|
| 1591 | 5fd46862 | pbrook | ldrd with base writeback is is undefined if the
|
| 1592 | 5fd46862 | pbrook | destination and index registers overlap. */
|
| 1593 | 2c0262af | bellard | if (!(insn & (1 << 24))) { |
| 1594 | 191f9a93 | pbrook | gen_add_datah_offset(s, insn, address_offset); |
| 1595 | 2c0262af | bellard | gen_movl_reg_T1(s, rn); |
| 1596 | 2c0262af | bellard | } else if (insn & (1 << 21)) { |
| 1597 | 191f9a93 | pbrook | if (address_offset)
|
| 1598 | 191f9a93 | pbrook | gen_op_addl_T1_im(address_offset); |
| 1599 | 2c0262af | bellard | gen_movl_reg_T1(s, rn); |
| 1600 | 2c0262af | bellard | } |
| 1601 | 5fd46862 | pbrook | if (load) {
|
| 1602 | 5fd46862 | pbrook | /* Complete the load. */
|
| 1603 | 5fd46862 | pbrook | gen_movl_reg_T0(s, rd); |
| 1604 | 5fd46862 | pbrook | } |
| 1605 | 2c0262af | bellard | } |
| 1606 | 2c0262af | bellard | break;
|
| 1607 | 2c0262af | bellard | case 0x4: |
| 1608 | 2c0262af | bellard | case 0x5: |
| 1609 | 2c0262af | bellard | case 0x6: |
| 1610 | 2c0262af | bellard | case 0x7: |
| 1611 | 159f3663 | bellard | /* Check for undefined extension instructions
|
| 1612 | 159f3663 | bellard | * per the ARM Bible IE:
|
| 1613 | 159f3663 | bellard | * xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx
|
| 1614 | 159f3663 | bellard | */
|
| 1615 | 159f3663 | bellard | sh = (0xf << 20) | (0xf << 4); |
| 1616 | 159f3663 | bellard | if (op1 == 0x7 && ((insn & sh) == sh)) |
| 1617 | 159f3663 | bellard | {
|
| 1618 | 159f3663 | bellard | goto illegal_op;
|
| 1619 | 159f3663 | bellard | } |
| 1620 | 2c0262af | bellard | /* load/store byte/word */
|
| 1621 | 2c0262af | bellard | rn = (insn >> 16) & 0xf; |
| 1622 | 2c0262af | bellard | rd = (insn >> 12) & 0xf; |
| 1623 | 2c0262af | bellard | gen_movl_T1_reg(s, rn); |
| 1624 | b5ff1b31 | bellard | i = (IS_USER(s) || (insn & 0x01200000) == 0x00200000); |
| 1625 | 2c0262af | bellard | if (insn & (1 << 24)) |
| 1626 | 2c0262af | bellard | gen_add_data_offset(s, insn); |
| 1627 | 2c0262af | bellard | if (insn & (1 << 20)) { |
| 1628 | 2c0262af | bellard | /* load */
|
| 1629 | 6658ffb8 | pbrook | s->is_mem = 1;
|
| 1630 | b5ff1b31 | bellard | #if defined(CONFIG_USER_ONLY)
|
| 1631 | 2c0262af | bellard | if (insn & (1 << 22)) |
| 1632 | b5ff1b31 | bellard | gen_op_ldub_raw(); |
| 1633 | 2c0262af | bellard | else
|
| 1634 | b5ff1b31 | bellard | gen_op_ldl_raw(); |
| 1635 | b5ff1b31 | bellard | #else
|
| 1636 | b5ff1b31 | bellard | if (insn & (1 << 22)) { |
| 1637 | b5ff1b31 | bellard | if (i)
|
| 1638 | b5ff1b31 | bellard | gen_op_ldub_user(); |
| 1639 | b5ff1b31 | bellard | else
|
| 1640 | b5ff1b31 | bellard | gen_op_ldub_kernel(); |
| 1641 | b5ff1b31 | bellard | } else {
|
| 1642 | b5ff1b31 | bellard | if (i)
|
| 1643 | b5ff1b31 | bellard | gen_op_ldl_user(); |
| 1644 | b5ff1b31 | bellard | else
|
| 1645 | b5ff1b31 | bellard | gen_op_ldl_kernel(); |
| 1646 | b5ff1b31 | bellard | } |
| 1647 | b5ff1b31 | bellard | #endif
|
| 1648 | 2c0262af | bellard | } else {
|
| 1649 | 2c0262af | bellard | /* store */
|
| 1650 | 2c0262af | bellard | gen_movl_T0_reg(s, rd); |
| 1651 | b5ff1b31 | bellard | #if defined(CONFIG_USER_ONLY)
|
| 1652 | 2c0262af | bellard | if (insn & (1 << 22)) |
| 1653 | b5ff1b31 | bellard | gen_op_stb_raw(); |
| 1654 | 2c0262af | bellard | else
|
| 1655 | b5ff1b31 | bellard | gen_op_stl_raw(); |
| 1656 | b5ff1b31 | bellard | #else
|
| 1657 | b5ff1b31 | bellard | if (insn & (1 << 22)) { |
| 1658 | b5ff1b31 | bellard | if (i)
|
| 1659 | b5ff1b31 | bellard | gen_op_stb_user(); |
| 1660 | b5ff1b31 | bellard | else
|
| 1661 | b5ff1b31 | bellard | gen_op_stb_kernel(); |
| 1662 | b5ff1b31 | bellard | } else {
|
| 1663 | b5ff1b31 | bellard | if (i)
|
| 1664 | b5ff1b31 | bellard | gen_op_stl_user(); |
| 1665 | b5ff1b31 | bellard | else
|
| 1666 | b5ff1b31 | bellard | gen_op_stl_kernel(); |
| 1667 | b5ff1b31 | bellard | } |
| 1668 | b5ff1b31 | bellard | #endif
|
| 1669 | 2c0262af | bellard | } |
| 1670 | 2c0262af | bellard | if (!(insn & (1 << 24))) { |
| 1671 | 2c0262af | bellard | gen_add_data_offset(s, insn); |
| 1672 | 2c0262af | bellard | gen_movl_reg_T1(s, rn); |
| 1673 | 2c0262af | bellard | } else if (insn & (1 << 21)) |
| 1674 | 2c0262af | bellard | gen_movl_reg_T1(s, rn); {
|
| 1675 | 2c0262af | bellard | } |
| 1676 | 5fd46862 | pbrook | if (insn & (1 << 20)) { |
| 1677 | 5fd46862 | pbrook | /* Complete the load. */
|
| 1678 | 5fd46862 | pbrook | if (rd == 15) |
| 1679 | 5fd46862 | pbrook | gen_bx(s); |
| 1680 | 5fd46862 | pbrook | else
|
| 1681 | 5fd46862 | pbrook | gen_movl_reg_T0(s, rd); |
| 1682 | 5fd46862 | pbrook | } |
| 1683 | 2c0262af | bellard | break;
|
| 1684 | 2c0262af | bellard | case 0x08: |
| 1685 | 2c0262af | bellard | case 0x09: |
| 1686 | 2c0262af | bellard | {
|
| 1687 | 191abaa2 | pbrook | int j, n, user, loaded_base;
|
| 1688 | 2c0262af | bellard | /* load/store multiple words */
|
| 1689 | 2c0262af | bellard | /* XXX: store correct base if write back */
|
| 1690 | b5ff1b31 | bellard | user = 0;
|
| 1691 | b5ff1b31 | bellard | if (insn & (1 << 22)) { |
| 1692 | b5ff1b31 | bellard | if (IS_USER(s))
|
| 1693 | b5ff1b31 | bellard | goto illegal_op; /* only usable in supervisor mode */ |
| 1694 | b5ff1b31 | bellard | |
| 1695 | b5ff1b31 | bellard | if ((insn & (1 << 15)) == 0) |
| 1696 | b5ff1b31 | bellard | user = 1;
|
| 1697 | b5ff1b31 | bellard | } |
| 1698 | 2c0262af | bellard | rn = (insn >> 16) & 0xf; |
| 1699 | 2c0262af | bellard | gen_movl_T1_reg(s, rn); |
| 1700 | 2c0262af | bellard | |
| 1701 | 2c0262af | bellard | /* compute total size */
|
| 1702 | 191abaa2 | pbrook | loaded_base = 0;
|
| 1703 | 2c0262af | bellard | n = 0;
|
| 1704 | 2c0262af | bellard | for(i=0;i<16;i++) { |
| 1705 | 2c0262af | bellard | if (insn & (1 << i)) |
| 1706 | 2c0262af | bellard | n++; |
| 1707 | 2c0262af | bellard | } |
| 1708 | 2c0262af | bellard | /* XXX: test invalid n == 0 case ? */
|
| 1709 | 2c0262af | bellard | if (insn & (1 << 23)) { |
| 1710 | 2c0262af | bellard | if (insn & (1 << 24)) { |
| 1711 | 2c0262af | bellard | /* pre increment */
|
| 1712 | 2c0262af | bellard | gen_op_addl_T1_im(4);
|
| 1713 | 2c0262af | bellard | } else {
|
| 1714 | 2c0262af | bellard | /* post increment */
|
| 1715 | 2c0262af | bellard | } |
| 1716 | 2c0262af | bellard | } else {
|
| 1717 | 2c0262af | bellard | if (insn & (1 << 24)) { |
| 1718 | 2c0262af | bellard | /* pre decrement */
|
| 1719 | 2c0262af | bellard | gen_op_addl_T1_im(-(n * 4));
|
| 1720 | 2c0262af | bellard | } else {
|
| 1721 | 2c0262af | bellard | /* post decrement */
|
| 1722 | 2c0262af | bellard | if (n != 1) |
| 1723 | 2c0262af | bellard | gen_op_addl_T1_im(-((n - 1) * 4)); |
| 1724 | 2c0262af | bellard | } |
| 1725 | 2c0262af | bellard | } |
| 1726 | 2c0262af | bellard | j = 0;
|
| 1727 | 2c0262af | bellard | for(i=0;i<16;i++) { |
| 1728 | 2c0262af | bellard | if (insn & (1 << i)) { |
| 1729 | 2c0262af | bellard | if (insn & (1 << 20)) { |
| 1730 | 2c0262af | bellard | /* load */
|
| 1731 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 1732 | b5ff1b31 | bellard | if (i == 15) { |
| 1733 | 99c475ab | bellard | gen_bx(s); |
| 1734 | b5ff1b31 | bellard | } else if (user) { |
| 1735 | b5ff1b31 | bellard | gen_op_movl_user_T0(i); |
| 1736 | 191abaa2 | pbrook | } else if (i == rn) { |
| 1737 | 191abaa2 | pbrook | gen_op_movl_T2_T0(); |
| 1738 | 191abaa2 | pbrook | loaded_base = 1;
|
| 1739 | b5ff1b31 | bellard | } else {
|
| 1740 | 99c475ab | bellard | gen_movl_reg_T0(s, i); |
| 1741 | b5ff1b31 | bellard | } |
| 1742 | 2c0262af | bellard | } else {
|
| 1743 | 2c0262af | bellard | /* store */
|
| 1744 | 2c0262af | bellard | if (i == 15) { |
| 1745 | 2c0262af | bellard | /* special case: r15 = PC + 12 */
|
| 1746 | 2c0262af | bellard | val = (long)s->pc + 8; |
| 1747 | 2c0262af | bellard | gen_op_movl_TN_im[0](val);
|
| 1748 | b5ff1b31 | bellard | } else if (user) { |
| 1749 | b5ff1b31 | bellard | gen_op_movl_T0_user(i); |
| 1750 | 2c0262af | bellard | } else {
|
| 1751 | 2c0262af | bellard | gen_movl_T0_reg(s, i); |
| 1752 | 2c0262af | bellard | } |
| 1753 | b5ff1b31 | bellard | gen_ldst(stl, s); |
| 1754 | 2c0262af | bellard | } |
| 1755 | 2c0262af | bellard | j++; |
| 1756 | 2c0262af | bellard | /* no need to add after the last transfer */
|
| 1757 | 2c0262af | bellard | if (j != n)
|
| 1758 | 2c0262af | bellard | gen_op_addl_T1_im(4);
|
| 1759 | 2c0262af | bellard | } |
| 1760 | 2c0262af | bellard | } |
| 1761 | 2c0262af | bellard | if (insn & (1 << 21)) { |
| 1762 | 2c0262af | bellard | /* write back */
|
| 1763 | 2c0262af | bellard | if (insn & (1 << 23)) { |
| 1764 | 2c0262af | bellard | if (insn & (1 << 24)) { |
| 1765 | 2c0262af | bellard | /* pre increment */
|
| 1766 | 2c0262af | bellard | } else {
|
| 1767 | 2c0262af | bellard | /* post increment */
|
| 1768 | 2c0262af | bellard | gen_op_addl_T1_im(4);
|
| 1769 | 2c0262af | bellard | } |
| 1770 | 2c0262af | bellard | } else {
|
| 1771 | 2c0262af | bellard | if (insn & (1 << 24)) { |
| 1772 | 2c0262af | bellard | /* pre decrement */
|
| 1773 | 2c0262af | bellard | if (n != 1) |
| 1774 | 2c0262af | bellard | gen_op_addl_T1_im(-((n - 1) * 4)); |
| 1775 | 2c0262af | bellard | } else {
|
| 1776 | 2c0262af | bellard | /* post decrement */
|
| 1777 | 2c0262af | bellard | gen_op_addl_T1_im(-(n * 4));
|
| 1778 | 2c0262af | bellard | } |
| 1779 | 2c0262af | bellard | } |
| 1780 | 2c0262af | bellard | gen_movl_reg_T1(s, rn); |
| 1781 | 2c0262af | bellard | } |
| 1782 | 191abaa2 | pbrook | if (loaded_base) {
|
| 1783 | 191abaa2 | pbrook | gen_op_movl_T0_T2(); |
| 1784 | 191abaa2 | pbrook | gen_movl_reg_T0(s, rn); |
| 1785 | 191abaa2 | pbrook | } |
| 1786 | b5ff1b31 | bellard | if ((insn & (1 << 22)) && !user) { |
| 1787 | b5ff1b31 | bellard | /* Restore CPSR from SPSR. */
|
| 1788 | b5ff1b31 | bellard | gen_op_movl_T0_spsr(); |
| 1789 | b5ff1b31 | bellard | gen_op_movl_cpsr_T0(0xffffffff);
|
| 1790 | b5ff1b31 | bellard | s->is_jmp = DISAS_UPDATE; |
| 1791 | b5ff1b31 | bellard | } |
| 1792 | 2c0262af | bellard | } |
| 1793 | 2c0262af | bellard | break;
|
| 1794 | 2c0262af | bellard | case 0xa: |
| 1795 | 2c0262af | bellard | case 0xb: |
| 1796 | 2c0262af | bellard | {
|
| 1797 | 99c475ab | bellard | int32_t offset; |
| 1798 | 2c0262af | bellard | |
| 1799 | 2c0262af | bellard | /* branch (and link) */
|
| 1800 | 99c475ab | bellard | val = (int32_t)s->pc; |
| 1801 | 2c0262af | bellard | if (insn & (1 << 24)) { |
| 1802 | 2c0262af | bellard | gen_op_movl_T0_im(val); |
| 1803 | 2c0262af | bellard | gen_op_movl_reg_TN[0][14](); |
| 1804 | 2c0262af | bellard | } |
| 1805 | 99c475ab | bellard | offset = (((int32_t)insn << 8) >> 8); |
| 1806 | 2c0262af | bellard | val += (offset << 2) + 4; |
| 1807 | 8aaca4c0 | bellard | gen_jmp(s, val); |
| 1808 | 2c0262af | bellard | } |
| 1809 | 2c0262af | bellard | break;
|
| 1810 | b7bcbe95 | bellard | case 0xc: |
| 1811 | b7bcbe95 | bellard | case 0xd: |
| 1812 | b7bcbe95 | bellard | case 0xe: |
| 1813 | b7bcbe95 | bellard | /* Coprocessor. */
|
| 1814 | b7bcbe95 | bellard | op1 = (insn >> 8) & 0xf; |
| 1815 | b7bcbe95 | bellard | switch (op1) {
|
| 1816 | b7bcbe95 | bellard | case 10: |
| 1817 | b7bcbe95 | bellard | case 11: |
| 1818 | b7bcbe95 | bellard | if (disas_vfp_insn (env, s, insn))
|
| 1819 | b7bcbe95 | bellard | goto illegal_op;
|
| 1820 | b7bcbe95 | bellard | break;
|
| 1821 | b5ff1b31 | bellard | case 15: |
| 1822 | b5ff1b31 | bellard | if (disas_cp15_insn (s, insn))
|
| 1823 | b5ff1b31 | bellard | goto illegal_op;
|
| 1824 | b5ff1b31 | bellard | break;
|
| 1825 | b7bcbe95 | bellard | default:
|
| 1826 | b7bcbe95 | bellard | /* unknown coprocessor. */
|
| 1827 | b7bcbe95 | bellard | goto illegal_op;
|
| 1828 | b7bcbe95 | bellard | } |
| 1829 | b7bcbe95 | bellard | break;
|
| 1830 | 2c0262af | bellard | case 0xf: |
| 1831 | 2c0262af | bellard | /* swi */
|
| 1832 | 2c0262af | bellard | gen_op_movl_T0_im((long)s->pc);
|
| 1833 | 2c0262af | bellard | gen_op_movl_reg_TN[0][15](); |
| 1834 | 2c0262af | bellard | gen_op_swi(); |
| 1835 | 2c0262af | bellard | s->is_jmp = DISAS_JUMP; |
| 1836 | 2c0262af | bellard | break;
|
| 1837 | 2c0262af | bellard | default:
|
| 1838 | 2c0262af | bellard | illegal_op:
|
| 1839 | 2c0262af | bellard | gen_op_movl_T0_im((long)s->pc - 4); |
| 1840 | 2c0262af | bellard | gen_op_movl_reg_TN[0][15](); |
| 1841 | 2c0262af | bellard | gen_op_undef_insn(); |
| 1842 | 2c0262af | bellard | s->is_jmp = DISAS_JUMP; |
| 1843 | 2c0262af | bellard | break;
|
| 1844 | 2c0262af | bellard | } |
| 1845 | 2c0262af | bellard | } |
| 1846 | 2c0262af | bellard | } |
| 1847 | 2c0262af | bellard | |
| 1848 | 99c475ab | bellard | static void disas_thumb_insn(DisasContext *s) |
| 1849 | 99c475ab | bellard | {
|
| 1850 | 99c475ab | bellard | uint32_t val, insn, op, rm, rn, rd, shift, cond; |
| 1851 | 99c475ab | bellard | int32_t offset; |
| 1852 | 99c475ab | bellard | int i;
|
| 1853 | 99c475ab | bellard | |
| 1854 | b5ff1b31 | bellard | insn = lduw_code(s->pc); |
| 1855 | 99c475ab | bellard | s->pc += 2;
|
| 1856 | b5ff1b31 | bellard | |
| 1857 | 99c475ab | bellard | switch (insn >> 12) { |
| 1858 | 99c475ab | bellard | case 0: case 1: |
| 1859 | 99c475ab | bellard | rd = insn & 7;
|
| 1860 | 99c475ab | bellard | op = (insn >> 11) & 3; |
| 1861 | 99c475ab | bellard | if (op == 3) { |
| 1862 | 99c475ab | bellard | /* add/subtract */
|
| 1863 | 99c475ab | bellard | rn = (insn >> 3) & 7; |
| 1864 | 99c475ab | bellard | gen_movl_T0_reg(s, rn); |
| 1865 | 99c475ab | bellard | if (insn & (1 << 10)) { |
| 1866 | 99c475ab | bellard | /* immediate */
|
| 1867 | 99c475ab | bellard | gen_op_movl_T1_im((insn >> 6) & 7); |
| 1868 | 99c475ab | bellard | } else {
|
| 1869 | 99c475ab | bellard | /* reg */
|
| 1870 | 99c475ab | bellard | rm = (insn >> 6) & 7; |
| 1871 | 99c475ab | bellard | gen_movl_T1_reg(s, rm); |
| 1872 | 99c475ab | bellard | } |
| 1873 | 99c475ab | bellard | if (insn & (1 << 9)) |
| 1874 | 5899f386 | bellard | gen_op_subl_T0_T1_cc(); |
| 1875 | 99c475ab | bellard | else
|
| 1876 | 99c475ab | bellard | gen_op_addl_T0_T1_cc(); |
| 1877 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1878 | 99c475ab | bellard | } else {
|
| 1879 | 99c475ab | bellard | /* shift immediate */
|
| 1880 | 99c475ab | bellard | rm = (insn >> 3) & 7; |
| 1881 | 99c475ab | bellard | shift = (insn >> 6) & 0x1f; |
| 1882 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1883 | 99c475ab | bellard | gen_shift_T0_im_thumb[op](shift); |
| 1884 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1885 | 99c475ab | bellard | } |
| 1886 | 99c475ab | bellard | break;
|
| 1887 | 99c475ab | bellard | case 2: case 3: |
| 1888 | 99c475ab | bellard | /* arithmetic large immediate */
|
| 1889 | 99c475ab | bellard | op = (insn >> 11) & 3; |
| 1890 | 99c475ab | bellard | rd = (insn >> 8) & 0x7; |
| 1891 | 99c475ab | bellard | if (op == 0) { |
| 1892 | 99c475ab | bellard | gen_op_movl_T0_im(insn & 0xff);
|
| 1893 | 99c475ab | bellard | } else {
|
| 1894 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 1895 | 99c475ab | bellard | gen_op_movl_T1_im(insn & 0xff);
|
| 1896 | 99c475ab | bellard | } |
| 1897 | 99c475ab | bellard | switch (op) {
|
| 1898 | 99c475ab | bellard | case 0: /* mov */ |
| 1899 | 99c475ab | bellard | gen_op_logic_T0_cc(); |
| 1900 | 99c475ab | bellard | break;
|
| 1901 | 99c475ab | bellard | case 1: /* cmp */ |
| 1902 | 99c475ab | bellard | gen_op_subl_T0_T1_cc(); |
| 1903 | 99c475ab | bellard | break;
|
| 1904 | 99c475ab | bellard | case 2: /* add */ |
| 1905 | 99c475ab | bellard | gen_op_addl_T0_T1_cc(); |
| 1906 | 99c475ab | bellard | break;
|
| 1907 | 99c475ab | bellard | case 3: /* sub */ |
| 1908 | 99c475ab | bellard | gen_op_subl_T0_T1_cc(); |
| 1909 | 99c475ab | bellard | break;
|
| 1910 | 99c475ab | bellard | } |
| 1911 | 99c475ab | bellard | if (op != 1) |
| 1912 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1913 | 99c475ab | bellard | break;
|
| 1914 | 99c475ab | bellard | case 4: |
| 1915 | 99c475ab | bellard | if (insn & (1 << 11)) { |
| 1916 | 99c475ab | bellard | rd = (insn >> 8) & 7; |
| 1917 | 5899f386 | bellard | /* load pc-relative. Bit 1 of PC is ignored. */
|
| 1918 | 5899f386 | bellard | val = s->pc + 2 + ((insn & 0xff) * 4); |
| 1919 | 5899f386 | bellard | val &= ~(uint32_t)2;
|
| 1920 | 99c475ab | bellard | gen_op_movl_T1_im(val); |
| 1921 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 1922 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1923 | 99c475ab | bellard | break;
|
| 1924 | 99c475ab | bellard | } |
| 1925 | 99c475ab | bellard | if (insn & (1 << 10)) { |
| 1926 | 99c475ab | bellard | /* data processing extended or blx */
|
| 1927 | 99c475ab | bellard | rd = (insn & 7) | ((insn >> 4) & 8); |
| 1928 | 99c475ab | bellard | rm = (insn >> 3) & 0xf; |
| 1929 | 99c475ab | bellard | op = (insn >> 8) & 3; |
| 1930 | 99c475ab | bellard | switch (op) {
|
| 1931 | 99c475ab | bellard | case 0: /* add */ |
| 1932 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 1933 | 99c475ab | bellard | gen_movl_T1_reg(s, rm); |
| 1934 | 99c475ab | bellard | gen_op_addl_T0_T1(); |
| 1935 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1936 | 99c475ab | bellard | break;
|
| 1937 | 99c475ab | bellard | case 1: /* cmp */ |
| 1938 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 1939 | 99c475ab | bellard | gen_movl_T1_reg(s, rm); |
| 1940 | 99c475ab | bellard | gen_op_subl_T0_T1_cc(); |
| 1941 | 99c475ab | bellard | break;
|
| 1942 | 99c475ab | bellard | case 2: /* mov/cpy */ |
| 1943 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1944 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 1945 | 99c475ab | bellard | break;
|
| 1946 | 99c475ab | bellard | case 3:/* branch [and link] exchange thumb register */ |
| 1947 | 99c475ab | bellard | if (insn & (1 << 7)) { |
| 1948 | 99c475ab | bellard | val = (uint32_t)s->pc | 1;
|
| 1949 | 99c475ab | bellard | gen_op_movl_T1_im(val); |
| 1950 | 99c475ab | bellard | gen_movl_reg_T1(s, 14);
|
| 1951 | 99c475ab | bellard | } |
| 1952 | 99c475ab | bellard | gen_movl_T0_reg(s, rm); |
| 1953 | 99c475ab | bellard | gen_bx(s); |
| 1954 | 99c475ab | bellard | break;
|
| 1955 | 99c475ab | bellard | } |
| 1956 | 99c475ab | bellard | break;
|
| 1957 | 99c475ab | bellard | } |
| 1958 | 99c475ab | bellard | |
| 1959 | 99c475ab | bellard | /* data processing register */
|
| 1960 | 99c475ab | bellard | rd = insn & 7;
|
| 1961 | 99c475ab | bellard | rm = (insn >> 3) & 7; |
| 1962 | 99c475ab | bellard | op = (insn >> 6) & 0xf; |
| 1963 | 99c475ab | bellard | if (op == 2 || op == 3 || op == 4 || op == 7) { |
| 1964 | 99c475ab | bellard | /* the shift/rotate ops want the operands backwards */
|
| 1965 | 99c475ab | bellard | val = rm; |
| 1966 | 99c475ab | bellard | rm = rd; |
| 1967 | 99c475ab | bellard | rd = val; |
| 1968 | 99c475ab | bellard | val = 1;
|
| 1969 | 99c475ab | bellard | } else {
|
| 1970 | 99c475ab | bellard | val = 0;
|
| 1971 | 99c475ab | bellard | } |
| 1972 | 99c475ab | bellard | |
| 1973 | 99c475ab | bellard | if (op == 9) /* neg */ |
| 1974 | 99c475ab | bellard | gen_op_movl_T0_im(0);
|
| 1975 | 99c475ab | bellard | else if (op != 0xf) /* mvn doesn't read its first operand */ |
| 1976 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 1977 | 99c475ab | bellard | |
| 1978 | 99c475ab | bellard | gen_movl_T1_reg(s, rm); |
| 1979 | 5899f386 | bellard | switch (op) {
|
| 1980 | 99c475ab | bellard | case 0x0: /* and */ |
| 1981 | 99c475ab | bellard | gen_op_andl_T0_T1(); |
| 1982 | 99c475ab | bellard | gen_op_logic_T0_cc(); |
| 1983 | 99c475ab | bellard | break;
|
| 1984 | 99c475ab | bellard | case 0x1: /* eor */ |
| 1985 | 99c475ab | bellard | gen_op_xorl_T0_T1(); |
| 1986 | 99c475ab | bellard | gen_op_logic_T0_cc(); |
| 1987 | 99c475ab | bellard | break;
|
| 1988 | 99c475ab | bellard | case 0x2: /* lsl */ |
| 1989 | 99c475ab | bellard | gen_op_shll_T1_T0_cc(); |
| 1990 | 3aa22b4b | pbrook | gen_op_logic_T1_cc(); |
| 1991 | 99c475ab | bellard | break;
|
| 1992 | 99c475ab | bellard | case 0x3: /* lsr */ |
| 1993 | 99c475ab | bellard | gen_op_shrl_T1_T0_cc(); |
| 1994 | 3aa22b4b | pbrook | gen_op_logic_T1_cc(); |
| 1995 | 99c475ab | bellard | break;
|
| 1996 | 99c475ab | bellard | case 0x4: /* asr */ |
| 1997 | 99c475ab | bellard | gen_op_sarl_T1_T0_cc(); |
| 1998 | 3aa22b4b | pbrook | gen_op_logic_T1_cc(); |
| 1999 | 99c475ab | bellard | break;
|
| 2000 | 99c475ab | bellard | case 0x5: /* adc */ |
| 2001 | 99c475ab | bellard | gen_op_adcl_T0_T1_cc(); |
| 2002 | 99c475ab | bellard | break;
|
| 2003 | 99c475ab | bellard | case 0x6: /* sbc */ |
| 2004 | 99c475ab | bellard | gen_op_sbcl_T0_T1_cc(); |
| 2005 | 99c475ab | bellard | break;
|
| 2006 | 99c475ab | bellard | case 0x7: /* ror */ |
| 2007 | 99c475ab | bellard | gen_op_rorl_T1_T0_cc(); |
| 2008 | 3aa22b4b | pbrook | gen_op_logic_T1_cc(); |
| 2009 | 99c475ab | bellard | break;
|
| 2010 | 99c475ab | bellard | case 0x8: /* tst */ |
| 2011 | 99c475ab | bellard | gen_op_andl_T0_T1(); |
| 2012 | 99c475ab | bellard | gen_op_logic_T0_cc(); |
| 2013 | 99c475ab | bellard | rd = 16;
|
| 2014 | 5899f386 | bellard | break;
|
| 2015 | 99c475ab | bellard | case 0x9: /* neg */ |
| 2016 | 5899f386 | bellard | gen_op_subl_T0_T1_cc(); |
| 2017 | 99c475ab | bellard | break;
|
| 2018 | 99c475ab | bellard | case 0xa: /* cmp */ |
| 2019 | 99c475ab | bellard | gen_op_subl_T0_T1_cc(); |
| 2020 | 99c475ab | bellard | rd = 16;
|
| 2021 | 99c475ab | bellard | break;
|
| 2022 | 99c475ab | bellard | case 0xb: /* cmn */ |
| 2023 | 99c475ab | bellard | gen_op_addl_T0_T1_cc(); |
| 2024 | 99c475ab | bellard | rd = 16;
|
| 2025 | 99c475ab | bellard | break;
|
| 2026 | 99c475ab | bellard | case 0xc: /* orr */ |
| 2027 | 99c475ab | bellard | gen_op_orl_T0_T1(); |
| 2028 | 99c475ab | bellard | gen_op_logic_T0_cc(); |
| 2029 | 99c475ab | bellard | break;
|
| 2030 | 99c475ab | bellard | case 0xd: /* mul */ |
| 2031 | 99c475ab | bellard | gen_op_mull_T0_T1(); |
| 2032 | 99c475ab | bellard | gen_op_logic_T0_cc(); |
| 2033 | 99c475ab | bellard | break;
|
| 2034 | 99c475ab | bellard | case 0xe: /* bic */ |
| 2035 | 99c475ab | bellard | gen_op_bicl_T0_T1(); |
| 2036 | 99c475ab | bellard | gen_op_logic_T0_cc(); |
| 2037 | 99c475ab | bellard | break;
|
| 2038 | 99c475ab | bellard | case 0xf: /* mvn */ |
| 2039 | 99c475ab | bellard | gen_op_notl_T1(); |
| 2040 | 99c475ab | bellard | gen_op_logic_T1_cc(); |
| 2041 | 99c475ab | bellard | val = 1;
|
| 2042 | 5899f386 | bellard | rm = rd; |
| 2043 | 99c475ab | bellard | break;
|
| 2044 | 99c475ab | bellard | } |
| 2045 | 99c475ab | bellard | if (rd != 16) { |
| 2046 | 99c475ab | bellard | if (val)
|
| 2047 | 5899f386 | bellard | gen_movl_reg_T1(s, rm); |
| 2048 | 99c475ab | bellard | else
|
| 2049 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 2050 | 99c475ab | bellard | } |
| 2051 | 99c475ab | bellard | break;
|
| 2052 | 99c475ab | bellard | |
| 2053 | 99c475ab | bellard | case 5: |
| 2054 | 99c475ab | bellard | /* load/store register offset. */
|
| 2055 | 99c475ab | bellard | rd = insn & 7;
|
| 2056 | 99c475ab | bellard | rn = (insn >> 3) & 7; |
| 2057 | 99c475ab | bellard | rm = (insn >> 6) & 7; |
| 2058 | 99c475ab | bellard | op = (insn >> 9) & 7; |
| 2059 | 99c475ab | bellard | gen_movl_T1_reg(s, rn); |
| 2060 | 99c475ab | bellard | gen_movl_T2_reg(s, rm); |
| 2061 | 99c475ab | bellard | gen_op_addl_T1_T2(); |
| 2062 | 99c475ab | bellard | |
| 2063 | 99c475ab | bellard | if (op < 3) /* store */ |
| 2064 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 2065 | 99c475ab | bellard | |
| 2066 | 99c475ab | bellard | switch (op) {
|
| 2067 | 99c475ab | bellard | case 0: /* str */ |
| 2068 | b5ff1b31 | bellard | gen_ldst(stl, s); |
| 2069 | 99c475ab | bellard | break;
|
| 2070 | 99c475ab | bellard | case 1: /* strh */ |
| 2071 | b5ff1b31 | bellard | gen_ldst(stw, s); |
| 2072 | 99c475ab | bellard | break;
|
| 2073 | 99c475ab | bellard | case 2: /* strb */ |
| 2074 | b5ff1b31 | bellard | gen_ldst(stb, s); |
| 2075 | 99c475ab | bellard | break;
|
| 2076 | 99c475ab | bellard | case 3: /* ldrsb */ |
| 2077 | b5ff1b31 | bellard | gen_ldst(ldsb, s); |
| 2078 | 99c475ab | bellard | break;
|
| 2079 | 99c475ab | bellard | case 4: /* ldr */ |
| 2080 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 2081 | 99c475ab | bellard | break;
|
| 2082 | 99c475ab | bellard | case 5: /* ldrh */ |
| 2083 | b5ff1b31 | bellard | gen_ldst(lduw, s); |
| 2084 | 99c475ab | bellard | break;
|
| 2085 | 99c475ab | bellard | case 6: /* ldrb */ |
| 2086 | b5ff1b31 | bellard | gen_ldst(ldub, s); |
| 2087 | 99c475ab | bellard | break;
|
| 2088 | 99c475ab | bellard | case 7: /* ldrsh */ |
| 2089 | b5ff1b31 | bellard | gen_ldst(ldsw, s); |
| 2090 | 99c475ab | bellard | break;
|
| 2091 | 99c475ab | bellard | } |
| 2092 | 99c475ab | bellard | if (op >= 3) /* load */ |
| 2093 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 2094 | 99c475ab | bellard | break;
|
| 2095 | 99c475ab | bellard | |
| 2096 | 99c475ab | bellard | case 6: |
| 2097 | 99c475ab | bellard | /* load/store word immediate offset */
|
| 2098 | 99c475ab | bellard | rd = insn & 7;
|
| 2099 | 99c475ab | bellard | rn = (insn >> 3) & 7; |
| 2100 | 99c475ab | bellard | gen_movl_T1_reg(s, rn); |
| 2101 | 99c475ab | bellard | val = (insn >> 4) & 0x7c; |
| 2102 | 99c475ab | bellard | gen_op_movl_T2_im(val); |
| 2103 | 99c475ab | bellard | gen_op_addl_T1_T2(); |
| 2104 | 99c475ab | bellard | |
| 2105 | 99c475ab | bellard | if (insn & (1 << 11)) { |
| 2106 | 99c475ab | bellard | /* load */
|
| 2107 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 2108 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 2109 | 99c475ab | bellard | } else {
|
| 2110 | 99c475ab | bellard | /* store */
|
| 2111 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 2112 | b5ff1b31 | bellard | gen_ldst(stl, s); |
| 2113 | 99c475ab | bellard | } |
| 2114 | 99c475ab | bellard | break;
|
| 2115 | 99c475ab | bellard | |
| 2116 | 99c475ab | bellard | case 7: |
| 2117 | 99c475ab | bellard | /* load/store byte immediate offset */
|
| 2118 | 99c475ab | bellard | rd = insn & 7;
|
| 2119 | 99c475ab | bellard | rn = (insn >> 3) & 7; |
| 2120 | 99c475ab | bellard | gen_movl_T1_reg(s, rn); |
| 2121 | 99c475ab | bellard | val = (insn >> 6) & 0x1f; |
| 2122 | 99c475ab | bellard | gen_op_movl_T2_im(val); |
| 2123 | 99c475ab | bellard | gen_op_addl_T1_T2(); |
| 2124 | 99c475ab | bellard | |
| 2125 | 99c475ab | bellard | if (insn & (1 << 11)) { |
| 2126 | 99c475ab | bellard | /* load */
|
| 2127 | b5ff1b31 | bellard | gen_ldst(ldub, s); |
| 2128 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 2129 | 99c475ab | bellard | } else {
|
| 2130 | 99c475ab | bellard | /* store */
|
| 2131 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 2132 | b5ff1b31 | bellard | gen_ldst(stb, s); |
| 2133 | 99c475ab | bellard | } |
| 2134 | 99c475ab | bellard | break;
|
| 2135 | 99c475ab | bellard | |
| 2136 | 99c475ab | bellard | case 8: |
| 2137 | 99c475ab | bellard | /* load/store halfword immediate offset */
|
| 2138 | 99c475ab | bellard | rd = insn & 7;
|
| 2139 | 99c475ab | bellard | rn = (insn >> 3) & 7; |
| 2140 | 99c475ab | bellard | gen_movl_T1_reg(s, rn); |
| 2141 | 99c475ab | bellard | val = (insn >> 5) & 0x3e; |
| 2142 | 99c475ab | bellard | gen_op_movl_T2_im(val); |
| 2143 | 99c475ab | bellard | gen_op_addl_T1_T2(); |
| 2144 | 99c475ab | bellard | |
| 2145 | 99c475ab | bellard | if (insn & (1 << 11)) { |
| 2146 | 99c475ab | bellard | /* load */
|
| 2147 | b5ff1b31 | bellard | gen_ldst(lduw, s); |
| 2148 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 2149 | 99c475ab | bellard | } else {
|
| 2150 | 99c475ab | bellard | /* store */
|
| 2151 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 2152 | b5ff1b31 | bellard | gen_ldst(stw, s); |
| 2153 | 99c475ab | bellard | } |
| 2154 | 99c475ab | bellard | break;
|
| 2155 | 99c475ab | bellard | |
| 2156 | 99c475ab | bellard | case 9: |
| 2157 | 99c475ab | bellard | /* load/store from stack */
|
| 2158 | 99c475ab | bellard | rd = (insn >> 8) & 7; |
| 2159 | 99c475ab | bellard | gen_movl_T1_reg(s, 13);
|
| 2160 | 99c475ab | bellard | val = (insn & 0xff) * 4; |
| 2161 | 99c475ab | bellard | gen_op_movl_T2_im(val); |
| 2162 | 99c475ab | bellard | gen_op_addl_T1_T2(); |
| 2163 | 99c475ab | bellard | |
| 2164 | 99c475ab | bellard | if (insn & (1 << 11)) { |
| 2165 | 99c475ab | bellard | /* load */
|
| 2166 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 2167 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 2168 | 99c475ab | bellard | } else {
|
| 2169 | 99c475ab | bellard | /* store */
|
| 2170 | 99c475ab | bellard | gen_movl_T0_reg(s, rd); |
| 2171 | b5ff1b31 | bellard | gen_ldst(stl, s); |
| 2172 | 99c475ab | bellard | } |
| 2173 | 99c475ab | bellard | break;
|
| 2174 | 99c475ab | bellard | |
| 2175 | 99c475ab | bellard | case 10: |
| 2176 | 99c475ab | bellard | /* add to high reg */
|
| 2177 | 99c475ab | bellard | rd = (insn >> 8) & 7; |
| 2178 | 5899f386 | bellard | if (insn & (1 << 11)) { |
| 2179 | 5899f386 | bellard | /* SP */
|
| 2180 | 5899f386 | bellard | gen_movl_T0_reg(s, 13);
|
| 2181 | 5899f386 | bellard | } else {
|
| 2182 | 5899f386 | bellard | /* PC. bit 1 is ignored. */
|
| 2183 | 5899f386 | bellard | gen_op_movl_T0_im((s->pc + 2) & ~(uint32_t)2); |
| 2184 | 5899f386 | bellard | } |
| 2185 | 99c475ab | bellard | val = (insn & 0xff) * 4; |
| 2186 | 99c475ab | bellard | gen_op_movl_T1_im(val); |
| 2187 | 99c475ab | bellard | gen_op_addl_T0_T1(); |
| 2188 | 99c475ab | bellard | gen_movl_reg_T0(s, rd); |
| 2189 | 99c475ab | bellard | break;
|
| 2190 | 99c475ab | bellard | |
| 2191 | 99c475ab | bellard | case 11: |
| 2192 | 99c475ab | bellard | /* misc */
|
| 2193 | 99c475ab | bellard | op = (insn >> 8) & 0xf; |
| 2194 | 99c475ab | bellard | switch (op) {
|
| 2195 | 99c475ab | bellard | case 0: |
| 2196 | 99c475ab | bellard | /* adjust stack pointer */
|
| 2197 | 99c475ab | bellard | gen_movl_T1_reg(s, 13);
|
| 2198 | 99c475ab | bellard | val = (insn & 0x7f) * 4; |
| 2199 | 99c475ab | bellard | if (insn & (1 << 7)) |
| 2200 | 99c475ab | bellard | val = -(int32_t)val; |
| 2201 | 99c475ab | bellard | gen_op_movl_T2_im(val); |
| 2202 | 99c475ab | bellard | gen_op_addl_T1_T2(); |
| 2203 | 99c475ab | bellard | gen_movl_reg_T1(s, 13);
|
| 2204 | 99c475ab | bellard | break;
|
| 2205 | 99c475ab | bellard | |
| 2206 | 99c475ab | bellard | case 4: case 5: case 0xc: case 0xd: |
| 2207 | 99c475ab | bellard | /* push/pop */
|
| 2208 | 99c475ab | bellard | gen_movl_T1_reg(s, 13);
|
| 2209 | 5899f386 | bellard | if (insn & (1 << 8)) |
| 2210 | 5899f386 | bellard | offset = 4;
|
| 2211 | 99c475ab | bellard | else
|
| 2212 | 5899f386 | bellard | offset = 0;
|
| 2213 | 5899f386 | bellard | for (i = 0; i < 8; i++) { |
| 2214 | 5899f386 | bellard | if (insn & (1 << i)) |
| 2215 | 5899f386 | bellard | offset += 4;
|
| 2216 | 5899f386 | bellard | } |
| 2217 | 5899f386 | bellard | if ((insn & (1 << 11)) == 0) { |
| 2218 | 5899f386 | bellard | gen_op_movl_T2_im(-offset); |
| 2219 | 5899f386 | bellard | gen_op_addl_T1_T2(); |
| 2220 | 5899f386 | bellard | } |
| 2221 | 5899f386 | bellard | gen_op_movl_T2_im(4);
|
| 2222 | 99c475ab | bellard | for (i = 0; i < 8; i++) { |
| 2223 | 99c475ab | bellard | if (insn & (1 << i)) { |
| 2224 | 99c475ab | bellard | if (insn & (1 << 11)) { |
| 2225 | 99c475ab | bellard | /* pop */
|
| 2226 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 2227 | 99c475ab | bellard | gen_movl_reg_T0(s, i); |
| 2228 | 99c475ab | bellard | } else {
|
| 2229 | 99c475ab | bellard | /* push */
|
| 2230 | 99c475ab | bellard | gen_movl_T0_reg(s, i); |
| 2231 | b5ff1b31 | bellard | gen_ldst(stl, s); |
| 2232 | 99c475ab | bellard | } |
| 2233 | 5899f386 | bellard | /* advance to the next address. */
|
| 2234 | 99c475ab | bellard | gen_op_addl_T1_T2(); |
| 2235 | 99c475ab | bellard | } |
| 2236 | 99c475ab | bellard | } |
| 2237 | 99c475ab | bellard | if (insn & (1 << 8)) { |
| 2238 | 99c475ab | bellard | if (insn & (1 << 11)) { |
| 2239 | 99c475ab | bellard | /* pop pc */
|
| 2240 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 2241 | 99c475ab | bellard | /* don't set the pc until the rest of the instruction
|
| 2242 | 99c475ab | bellard | has completed */
|
| 2243 | 99c475ab | bellard | } else {
|
| 2244 | 99c475ab | bellard | /* push lr */
|
| 2245 | 99c475ab | bellard | gen_movl_T0_reg(s, 14);
|
| 2246 | b5ff1b31 | bellard | gen_ldst(stl, s); |
| 2247 | 99c475ab | bellard | } |
| 2248 | 99c475ab | bellard | gen_op_addl_T1_T2(); |
| 2249 | 99c475ab | bellard | } |
| 2250 | 5899f386 | bellard | if ((insn & (1 << 11)) == 0) { |
| 2251 | 5899f386 | bellard | gen_op_movl_T2_im(-offset); |
| 2252 | 5899f386 | bellard | gen_op_addl_T1_T2(); |
| 2253 | 5899f386 | bellard | } |
| 2254 | 99c475ab | bellard | /* write back the new stack pointer */
|
| 2255 | 99c475ab | bellard | gen_movl_reg_T1(s, 13);
|
| 2256 | 99c475ab | bellard | /* set the new PC value */
|
| 2257 | 99c475ab | bellard | if ((insn & 0x0900) == 0x0900) |
| 2258 | 99c475ab | bellard | gen_bx(s); |
| 2259 | 99c475ab | bellard | break;
|
| 2260 | 99c475ab | bellard | |
| 2261 | 06c949e6 | pbrook | case 0xe: /* bkpt */ |
| 2262 | 06c949e6 | pbrook | gen_op_movl_T0_im((long)s->pc - 2); |
| 2263 | 06c949e6 | pbrook | gen_op_movl_reg_TN[0][15](); |
| 2264 | 06c949e6 | pbrook | gen_op_bkpt(); |
| 2265 | 06c949e6 | pbrook | s->is_jmp = DISAS_JUMP; |
| 2266 | 06c949e6 | pbrook | break;
|
| 2267 | 06c949e6 | pbrook | |
| 2268 | 99c475ab | bellard | default:
|
| 2269 | 99c475ab | bellard | goto undef;
|
| 2270 | 99c475ab | bellard | } |
| 2271 | 99c475ab | bellard | break;
|
| 2272 | 99c475ab | bellard | |
| 2273 | 99c475ab | bellard | case 12: |
| 2274 | 99c475ab | bellard | /* load/store multiple */
|
| 2275 | 99c475ab | bellard | rn = (insn >> 8) & 0x7; |
| 2276 | 99c475ab | bellard | gen_movl_T1_reg(s, rn); |
| 2277 | 99c475ab | bellard | gen_op_movl_T2_im(4);
|
| 2278 | 99c475ab | bellard | for (i = 0; i < 8; i++) { |
| 2279 | 99c475ab | bellard | if (insn & (1 << i)) { |
| 2280 | 99c475ab | bellard | if (insn & (1 << 11)) { |
| 2281 | 99c475ab | bellard | /* load */
|
| 2282 | b5ff1b31 | bellard | gen_ldst(ldl, s); |
| 2283 | 99c475ab | bellard | gen_movl_reg_T0(s, i); |
| 2284 | 99c475ab | bellard | } else {
|
| 2285 | 99c475ab | bellard | /* store */
|
| 2286 | 99c475ab | bellard | gen_movl_T0_reg(s, i); |
| 2287 | b5ff1b31 | bellard | gen_ldst(stl, s); |
| 2288 | 99c475ab | bellard | } |
| 2289 | 5899f386 | bellard | /* advance to the next address */
|
| 2290 | 5899f386 | bellard | gen_op_addl_T1_T2(); |
| 2291 | 99c475ab | bellard | } |
| 2292 | 99c475ab | bellard | } |
| 2293 | 5899f386 | bellard | /* Base register writeback. */
|
| 2294 | b5ff1b31 | bellard | if ((insn & (1 << rn)) == 0) |
| 2295 | b5ff1b31 | bellard | gen_movl_reg_T1(s, rn); |
| 2296 | 99c475ab | bellard | break;
|
| 2297 | 99c475ab | bellard | |
| 2298 | 99c475ab | bellard | case 13: |
| 2299 | 99c475ab | bellard | /* conditional branch or swi */
|
| 2300 | 99c475ab | bellard | cond = (insn >> 8) & 0xf; |
| 2301 | 99c475ab | bellard | if (cond == 0xe) |
| 2302 | 99c475ab | bellard | goto undef;
|
| 2303 | 99c475ab | bellard | |
| 2304 | 99c475ab | bellard | if (cond == 0xf) { |
| 2305 | 99c475ab | bellard | /* swi */
|
| 2306 | 99c475ab | bellard | gen_op_movl_T0_im((long)s->pc | 1); |
| 2307 | 99c475ab | bellard | /* Don't set r15. */
|
| 2308 | 99c475ab | bellard | gen_op_movl_reg_TN[0][15](); |
| 2309 | 99c475ab | bellard | gen_op_swi(); |
| 2310 | 99c475ab | bellard | s->is_jmp = DISAS_JUMP; |
| 2311 | 99c475ab | bellard | break;
|
| 2312 | 99c475ab | bellard | } |
| 2313 | 99c475ab | bellard | /* generate a conditional jump to next instruction */
|
| 2314 | e50e6a20 | bellard | s->condlabel = gen_new_label(); |
| 2315 | e50e6a20 | bellard | gen_test_cc[cond ^ 1](s->condlabel);
|
| 2316 | e50e6a20 | bellard | s->condjmp = 1;
|
| 2317 | e50e6a20 | bellard | //gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
|
| 2318 | e50e6a20 | bellard | //s->is_jmp = DISAS_JUMP_NEXT;
|
| 2319 | 99c475ab | bellard | gen_movl_T1_reg(s, 15);
|
| 2320 | 99c475ab | bellard | |
| 2321 | 99c475ab | bellard | /* jump to the offset */
|
| 2322 | 5899f386 | bellard | val = (uint32_t)s->pc + 2;
|
| 2323 | 99c475ab | bellard | offset = ((int32_t)insn << 24) >> 24; |
| 2324 | 5899f386 | bellard | val += offset << 1;
|
| 2325 | 8aaca4c0 | bellard | gen_jmp(s, val); |
| 2326 | 99c475ab | bellard | break;
|
| 2327 | 99c475ab | bellard | |
| 2328 | 99c475ab | bellard | case 14: |
| 2329 | 99c475ab | bellard | /* unconditional branch */
|
| 2330 | 358bf29e | pbrook | if (insn & (1 << 11)) { |
| 2331 | 358bf29e | pbrook | /* Second half of blx. */
|
| 2332 | 358bf29e | pbrook | offset = ((insn & 0x7ff) << 1); |
| 2333 | 358bf29e | pbrook | gen_movl_T0_reg(s, 14);
|
| 2334 | 358bf29e | pbrook | gen_op_movl_T1_im(offset); |
| 2335 | 358bf29e | pbrook | gen_op_addl_T0_T1(); |
| 2336 | 358bf29e | pbrook | gen_op_movl_T1_im(0xfffffffc);
|
| 2337 | 358bf29e | pbrook | gen_op_andl_T0_T1(); |
| 2338 | 358bf29e | pbrook | |
| 2339 | 358bf29e | pbrook | val = (uint32_t)s->pc; |
| 2340 | 358bf29e | pbrook | gen_op_movl_T1_im(val | 1);
|
| 2341 | 358bf29e | pbrook | gen_movl_reg_T1(s, 14);
|
| 2342 | 358bf29e | pbrook | gen_bx(s); |
| 2343 | 358bf29e | pbrook | break;
|
| 2344 | 358bf29e | pbrook | } |
| 2345 | 99c475ab | bellard | val = (uint32_t)s->pc; |
| 2346 | 99c475ab | bellard | offset = ((int32_t)insn << 21) >> 21; |
| 2347 | 99c475ab | bellard | val += (offset << 1) + 2; |
| 2348 | 8aaca4c0 | bellard | gen_jmp(s, val); |
| 2349 | 99c475ab | bellard | break;
|
| 2350 | 99c475ab | bellard | |
| 2351 | 99c475ab | bellard | case 15: |
| 2352 | 99c475ab | bellard | /* branch and link [and switch to arm] */
|
| 2353 | 358bf29e | pbrook | if ((s->pc & ~TARGET_PAGE_MASK) == 0) { |
| 2354 | 358bf29e | pbrook | /* Instruction spans a page boundary. Implement it as two
|
| 2355 | 358bf29e | pbrook | 16-bit instructions in case the second half causes an
|
| 2356 | 358bf29e | pbrook | prefetch abort. */
|
| 2357 | 358bf29e | pbrook | offset = ((int32_t)insn << 21) >> 9; |
| 2358 | 358bf29e | pbrook | val = s->pc + 2 + offset;
|
| 2359 | 358bf29e | pbrook | gen_op_movl_T0_im(val); |
| 2360 | 358bf29e | pbrook | gen_movl_reg_T0(s, 14);
|
| 2361 | 358bf29e | pbrook | break;
|
| 2362 | 358bf29e | pbrook | } |
| 2363 | 358bf29e | pbrook | if (insn & (1 << 11)) { |
| 2364 | 358bf29e | pbrook | /* Second half of bl. */
|
| 2365 | 358bf29e | pbrook | offset = ((insn & 0x7ff) << 1) | 1; |
| 2366 | 358bf29e | pbrook | gen_movl_T0_reg(s, 14);
|
| 2367 | 358bf29e | pbrook | gen_op_movl_T1_im(offset); |
| 2368 | 358bf29e | pbrook | gen_op_addl_T0_T1(); |
| 2369 | 358bf29e | pbrook | |
| 2370 | 358bf29e | pbrook | val = (uint32_t)s->pc; |
| 2371 | 358bf29e | pbrook | gen_op_movl_T1_im(val | 1);
|
| 2372 | 358bf29e | pbrook | gen_movl_reg_T1(s, 14);
|
| 2373 | 358bf29e | pbrook | gen_bx(s); |
| 2374 | 358bf29e | pbrook | break;
|
| 2375 | 358bf29e | pbrook | } |
| 2376 | 99c475ab | bellard | offset = ((int32_t)insn << 21) >> 10; |
| 2377 | b5ff1b31 | bellard | insn = lduw_code(s->pc); |
| 2378 | 99c475ab | bellard | offset |= insn & 0x7ff;
|
| 2379 | 99c475ab | bellard | |
| 2380 | 99c475ab | bellard | val = (uint32_t)s->pc + 2;
|
| 2381 | 99c475ab | bellard | gen_op_movl_T1_im(val | 1);
|
| 2382 | 99c475ab | bellard | gen_movl_reg_T1(s, 14);
|
| 2383 | 99c475ab | bellard | |
| 2384 | 5899f386 | bellard | val += offset << 1;
|
| 2385 | 2531fc7b | bellard | if (insn & (1 << 12)) { |
| 2386 | 99c475ab | bellard | /* bl */
|
| 2387 | 8aaca4c0 | bellard | gen_jmp(s, val); |
| 2388 | 99c475ab | bellard | } else {
|
| 2389 | 99c475ab | bellard | /* blx */
|
| 2390 | 5899f386 | bellard | val &= ~(uint32_t)2;
|
| 2391 | 99c475ab | bellard | gen_op_movl_T0_im(val); |
| 2392 | 99c475ab | bellard | gen_bx(s); |
| 2393 | 99c475ab | bellard | } |
| 2394 | 99c475ab | bellard | } |
| 2395 | 99c475ab | bellard | return;
|
| 2396 | 99c475ab | bellard | undef:
|
| 2397 | 5899f386 | bellard | gen_op_movl_T0_im((long)s->pc - 2); |
| 2398 | 99c475ab | bellard | gen_op_movl_reg_TN[0][15](); |
| 2399 | 99c475ab | bellard | gen_op_undef_insn(); |
| 2400 | 99c475ab | bellard | s->is_jmp = DISAS_JUMP; |
| 2401 | 99c475ab | bellard | } |
| 2402 | 99c475ab | bellard | |
| 2403 | 2c0262af | bellard | /* generate intermediate code in gen_opc_buf and gen_opparam_buf for
|
| 2404 | 2c0262af | bellard | basic block 'tb'. If search_pc is TRUE, also generate PC
|
| 2405 | 2c0262af | bellard | information for each intermediate instruction. */
|
| 2406 | 2c0262af | bellard | static inline int gen_intermediate_code_internal(CPUState *env, |
| 2407 | 2c0262af | bellard | TranslationBlock *tb, |
| 2408 | 2c0262af | bellard | int search_pc)
|
| 2409 | 2c0262af | bellard | {
|
| 2410 | 2c0262af | bellard | DisasContext dc1, *dc = &dc1; |
| 2411 | 2c0262af | bellard | uint16_t *gen_opc_end; |
| 2412 | 2c0262af | bellard | int j, lj;
|
| 2413 | 0fa85d43 | bellard | target_ulong pc_start; |
| 2414 | b5ff1b31 | bellard | uint32_t next_page_start; |
| 2415 | 2c0262af | bellard | |
| 2416 | 2c0262af | bellard | /* generate intermediate code */
|
| 2417 | 0fa85d43 | bellard | pc_start = tb->pc; |
| 2418 | 2c0262af | bellard | |
| 2419 | 2c0262af | bellard | dc->tb = tb; |
| 2420 | 2c0262af | bellard | |
| 2421 | 2c0262af | bellard | gen_opc_ptr = gen_opc_buf; |
| 2422 | 2c0262af | bellard | gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| 2423 | 2c0262af | bellard | gen_opparam_ptr = gen_opparam_buf; |
| 2424 | 2c0262af | bellard | |
| 2425 | 2c0262af | bellard | dc->is_jmp = DISAS_NEXT; |
| 2426 | 2c0262af | bellard | dc->pc = pc_start; |
| 2427 | 8aaca4c0 | bellard | dc->singlestep_enabled = env->singlestep_enabled; |
| 2428 | e50e6a20 | bellard | dc->condjmp = 0;
|
| 2429 | 5899f386 | bellard | dc->thumb = env->thumb; |
| 2430 | 6658ffb8 | pbrook | dc->is_mem = 0;
|
| 2431 | b5ff1b31 | bellard | #if !defined(CONFIG_USER_ONLY)
|
| 2432 | b5ff1b31 | bellard | dc->user = (env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_USR;
|
| 2433 | b5ff1b31 | bellard | #endif
|
| 2434 | b5ff1b31 | bellard | next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; |
| 2435 | e50e6a20 | bellard | nb_gen_labels = 0;
|
| 2436 | 2c0262af | bellard | lj = -1;
|
| 2437 | 2c0262af | bellard | do {
|
| 2438 | 1fddef4b | bellard | if (env->nb_breakpoints > 0) { |
| 2439 | 1fddef4b | bellard | for(j = 0; j < env->nb_breakpoints; j++) { |
| 2440 | 1fddef4b | bellard | if (env->breakpoints[j] == dc->pc) {
|
| 2441 | 1fddef4b | bellard | gen_op_movl_T0_im((long)dc->pc);
|
| 2442 | 1fddef4b | bellard | gen_op_movl_reg_TN[0][15](); |
| 2443 | 1fddef4b | bellard | gen_op_debug(); |
| 2444 | 1fddef4b | bellard | dc->is_jmp = DISAS_JUMP; |
| 2445 | 1fddef4b | bellard | break;
|
| 2446 | 1fddef4b | bellard | } |
| 2447 | 1fddef4b | bellard | } |
| 2448 | 1fddef4b | bellard | } |
| 2449 | 2c0262af | bellard | if (search_pc) {
|
| 2450 | 2c0262af | bellard | j = gen_opc_ptr - gen_opc_buf; |
| 2451 | 2c0262af | bellard | if (lj < j) {
|
| 2452 | 2c0262af | bellard | lj++; |
| 2453 | 2c0262af | bellard | while (lj < j)
|
| 2454 | 2c0262af | bellard | gen_opc_instr_start[lj++] = 0;
|
| 2455 | 2c0262af | bellard | } |
| 2456 | 0fa85d43 | bellard | gen_opc_pc[lj] = dc->pc; |
| 2457 | 2c0262af | bellard | gen_opc_instr_start[lj] = 1;
|
| 2458 | 2c0262af | bellard | } |
| 2459 | e50e6a20 | bellard | |
| 2460 | 99c475ab | bellard | if (env->thumb)
|
| 2461 | 99c475ab | bellard | disas_thumb_insn(dc); |
| 2462 | 99c475ab | bellard | else
|
| 2463 | b7bcbe95 | bellard | disas_arm_insn(env, dc); |
| 2464 | e50e6a20 | bellard | |
| 2465 | e50e6a20 | bellard | if (dc->condjmp && !dc->is_jmp) {
|
| 2466 | e50e6a20 | bellard | gen_set_label(dc->condlabel); |
| 2467 | e50e6a20 | bellard | dc->condjmp = 0;
|
| 2468 | e50e6a20 | bellard | } |
| 2469 | 6658ffb8 | pbrook | /* Terminate the TB on memory ops if watchpoints are present. */
|
| 2470 | 6658ffb8 | pbrook | /* FIXME: This should be replacd by the deterministic execution
|
| 2471 | 6658ffb8 | pbrook | * IRQ raising bits. */
|
| 2472 | 6658ffb8 | pbrook | if (dc->is_mem && env->nb_watchpoints)
|
| 2473 | 6658ffb8 | pbrook | break;
|
| 2474 | 6658ffb8 | pbrook | |
| 2475 | e50e6a20 | bellard | /* Translation stops when a conditional branch is enoutered.
|
| 2476 | e50e6a20 | bellard | * Otherwise the subsequent code could get translated several times.
|
| 2477 | b5ff1b31 | bellard | * Also stop translation when a page boundary is reached. This
|
| 2478 | b5ff1b31 | bellard | * ensures prefech aborts occur at the right place. */
|
| 2479 | 1fddef4b | bellard | } while (!dc->is_jmp && gen_opc_ptr < gen_opc_end &&
|
| 2480 | 1fddef4b | bellard | !env->singlestep_enabled && |
| 2481 | b5ff1b31 | bellard | dc->pc < next_page_start); |
| 2482 | b5ff1b31 | bellard | /* At this stage dc->condjmp will only be set when the skipped
|
| 2483 | b5ff1b31 | bellard | * instruction was a conditional branch, and the PC has already been
|
| 2484 | e50e6a20 | bellard | * written. */
|
| 2485 | 8aaca4c0 | bellard | if (__builtin_expect(env->singlestep_enabled, 0)) { |
| 2486 | 8aaca4c0 | bellard | /* Make sure the pc is updated, and raise a debug exception. */
|
| 2487 | e50e6a20 | bellard | if (dc->condjmp) {
|
| 2488 | e50e6a20 | bellard | gen_op_debug(); |
| 2489 | e50e6a20 | bellard | gen_set_label(dc->condlabel); |
| 2490 | e50e6a20 | bellard | } |
| 2491 | e50e6a20 | bellard | if (dc->condjmp || !dc->is_jmp) {
|
| 2492 | 8aaca4c0 | bellard | gen_op_movl_T0_im((long)dc->pc);
|
| 2493 | 8aaca4c0 | bellard | gen_op_movl_reg_TN[0][15](); |
| 2494 | e50e6a20 | bellard | dc->condjmp = 0;
|
| 2495 | 8aaca4c0 | bellard | } |
| 2496 | 8aaca4c0 | bellard | gen_op_debug(); |
| 2497 | 8aaca4c0 | bellard | } else {
|
| 2498 | 8aaca4c0 | bellard | switch(dc->is_jmp) {
|
| 2499 | 8aaca4c0 | bellard | case DISAS_NEXT:
|
| 2500 | 6e256c93 | bellard | gen_goto_tb(dc, 1, dc->pc);
|
| 2501 | 8aaca4c0 | bellard | break;
|
| 2502 | 8aaca4c0 | bellard | default:
|
| 2503 | 8aaca4c0 | bellard | case DISAS_JUMP:
|
| 2504 | 8aaca4c0 | bellard | case DISAS_UPDATE:
|
| 2505 | 8aaca4c0 | bellard | /* indicate that the hash table must be used to find the next TB */
|
| 2506 | 8aaca4c0 | bellard | gen_op_movl_T0_0(); |
| 2507 | 8aaca4c0 | bellard | gen_op_exit_tb(); |
| 2508 | 8aaca4c0 | bellard | break;
|
| 2509 | 8aaca4c0 | bellard | case DISAS_TB_JUMP:
|
| 2510 | 8aaca4c0 | bellard | /* nothing more to generate */
|
| 2511 | 8aaca4c0 | bellard | break;
|
| 2512 | 8aaca4c0 | bellard | } |
| 2513 | e50e6a20 | bellard | if (dc->condjmp) {
|
| 2514 | e50e6a20 | bellard | gen_set_label(dc->condlabel); |
| 2515 | 6e256c93 | bellard | gen_goto_tb(dc, 1, dc->pc);
|
| 2516 | e50e6a20 | bellard | dc->condjmp = 0;
|
| 2517 | e50e6a20 | bellard | } |
| 2518 | 2c0262af | bellard | } |
| 2519 | 2c0262af | bellard | *gen_opc_ptr = INDEX_op_end; |
| 2520 | 2c0262af | bellard | |
| 2521 | 2c0262af | bellard | #ifdef DEBUG_DISAS
|
| 2522 | e19e89a5 | bellard | if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2523 | 2c0262af | bellard | fprintf(logfile, "----------------\n");
|
| 2524 | 2c0262af | bellard | fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
|
| 2525 | 5899f386 | bellard | target_disas(logfile, pc_start, dc->pc - pc_start, env->thumb); |
| 2526 | 2c0262af | bellard | fprintf(logfile, "\n");
|
| 2527 | e19e89a5 | bellard | if (loglevel & (CPU_LOG_TB_OP)) {
|
| 2528 | e19e89a5 | bellard | fprintf(logfile, "OP:\n");
|
| 2529 | e19e89a5 | bellard | dump_ops(gen_opc_buf, gen_opparam_buf); |
| 2530 | e19e89a5 | bellard | fprintf(logfile, "\n");
|
| 2531 | e19e89a5 | bellard | } |
| 2532 | 2c0262af | bellard | } |
| 2533 | 2c0262af | bellard | #endif
|
| 2534 | b5ff1b31 | bellard | if (search_pc) {
|
| 2535 | b5ff1b31 | bellard | j = gen_opc_ptr - gen_opc_buf; |
| 2536 | b5ff1b31 | bellard | lj++; |
| 2537 | b5ff1b31 | bellard | while (lj <= j)
|
| 2538 | b5ff1b31 | bellard | gen_opc_instr_start[lj++] = 0;
|
| 2539 | b5ff1b31 | bellard | tb->size = 0;
|
| 2540 | b5ff1b31 | bellard | } else {
|
| 2541 | 2c0262af | bellard | tb->size = dc->pc - pc_start; |
| 2542 | b5ff1b31 | bellard | } |
| 2543 | 2c0262af | bellard | return 0; |
| 2544 | 2c0262af | bellard | } |
| 2545 | 2c0262af | bellard | |
| 2546 | 2c0262af | bellard | int gen_intermediate_code(CPUState *env, TranslationBlock *tb)
|
| 2547 | 2c0262af | bellard | {
|
| 2548 | 2c0262af | bellard | return gen_intermediate_code_internal(env, tb, 0); |
| 2549 | 2c0262af | bellard | } |
| 2550 | 2c0262af | bellard | |
| 2551 | 2c0262af | bellard | int gen_intermediate_code_pc(CPUState *env, TranslationBlock *tb)
|
| 2552 | 2c0262af | bellard | {
|
| 2553 | 2c0262af | bellard | return gen_intermediate_code_internal(env, tb, 1); |
| 2554 | 2c0262af | bellard | } |
| 2555 | 2c0262af | bellard | |
| 2556 | b5ff1b31 | bellard | static const char *cpu_mode_names[16] = { |
| 2557 | b5ff1b31 | bellard | "usr", "fiq", "irq", "svc", "???", "???", "???", "abt", |
| 2558 | b5ff1b31 | bellard | "???", "???", "???", "und", "???", "???", "???", "sys" |
| 2559 | b5ff1b31 | bellard | }; |
| 2560 | 7fe48483 | bellard | void cpu_dump_state(CPUState *env, FILE *f,
|
| 2561 | 7fe48483 | bellard | int (*cpu_fprintf)(FILE *f, const char *fmt, ...), |
| 2562 | 7fe48483 | bellard | int flags)
|
| 2563 | 2c0262af | bellard | {
|
| 2564 | 2c0262af | bellard | int i;
|
| 2565 | bc380d17 | bellard | union {
|
| 2566 | b7bcbe95 | bellard | uint32_t i; |
| 2567 | b7bcbe95 | bellard | float s;
|
| 2568 | b7bcbe95 | bellard | } s0, s1; |
| 2569 | b7bcbe95 | bellard | CPU_DoubleU d; |
| 2570 | a94a6abf | pbrook | /* ??? This assumes float64 and double have the same layout.
|
| 2571 | a94a6abf | pbrook | Oh well, it's only debug dumps. */
|
| 2572 | a94a6abf | pbrook | union {
|
| 2573 | a94a6abf | pbrook | float64 f64; |
| 2574 | a94a6abf | pbrook | double d;
|
| 2575 | a94a6abf | pbrook | } d0; |
| 2576 | b5ff1b31 | bellard | uint32_t psr; |
| 2577 | 2c0262af | bellard | |
| 2578 | 2c0262af | bellard | for(i=0;i<16;i++) { |
| 2579 | 7fe48483 | bellard | cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]);
|
| 2580 | 2c0262af | bellard | if ((i % 4) == 3) |
| 2581 | 7fe48483 | bellard | cpu_fprintf(f, "\n");
|
| 2582 | 2c0262af | bellard | else
|
| 2583 | 7fe48483 | bellard | cpu_fprintf(f, " ");
|
| 2584 | 2c0262af | bellard | } |
| 2585 | b5ff1b31 | bellard | psr = cpsr_read(env); |
| 2586 | b5ff1b31 | bellard | cpu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%d %x\n",
|
| 2587 | b5ff1b31 | bellard | psr, |
| 2588 | b5ff1b31 | bellard | psr & (1 << 31) ? 'N' : '-', |
| 2589 | b5ff1b31 | bellard | psr & (1 << 30) ? 'Z' : '-', |
| 2590 | b5ff1b31 | bellard | psr & (1 << 29) ? 'C' : '-', |
| 2591 | b5ff1b31 | bellard | psr & (1 << 28) ? 'V' : '-', |
| 2592 | b5ff1b31 | bellard | psr & CPSR_T ? 'T' : 'A', |
| 2593 | b5ff1b31 | bellard | cpu_mode_names[psr & 0xf], (psr & 0x10) ? 32 : 26); |
| 2594 | b7bcbe95 | bellard | |
| 2595 | b7bcbe95 | bellard | for (i = 0; i < 16; i++) { |
| 2596 | 8e96005d | bellard | d.d = env->vfp.regs[i]; |
| 2597 | 8e96005d | bellard | s0.i = d.l.lower; |
| 2598 | 8e96005d | bellard | s1.i = d.l.upper; |
| 2599 | a94a6abf | pbrook | d0.f64 = d.d; |
| 2600 | a94a6abf | pbrook | cpu_fprintf(f, "s%02d=%08x(%8g) s%02d=%08x(%8g) d%02d=%08x%08x(%8g)\n",
|
| 2601 | b7bcbe95 | bellard | i * 2, (int)s0.i, s0.s, |
| 2602 | a94a6abf | pbrook | i * 2 + 1, (int)s1.i, s1.s, |
| 2603 | b7bcbe95 | bellard | i, (int)(uint32_t)d.l.upper, (int)(uint32_t)d.l.lower, |
| 2604 | a94a6abf | pbrook | d0.d); |
| 2605 | b7bcbe95 | bellard | } |
| 2606 | 40f137e1 | pbrook | cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.xregs[ARM_VFP_FPSCR]); |
| 2607 | 2c0262af | bellard | } |