Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1 | /* |
| 2 | * CRISv10 emulation for qemu: main translation routines. |
| 3 | * |
| 4 | * Copyright (c) 2010 AXIS Communications AB |
| 5 | * Written by Edgar E. Iglesias. |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
Blue Swirl | 70539e1 | 2010-03-07 15:48:43 +0000 | [diff] [blame] | 18 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 19 | */ |
| 20 | |
| 21 | #include "crisv10-decode.h" |
| 22 | |
| 23 | static const char *regnames_v10[] = |
| 24 | { |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 25 | "$r0", "$r1", "$r2", "$r3", |
| 26 | "$r4", "$r5", "$r6", "$r7", |
| 27 | "$r8", "$r9", "$r10", "$r11", |
| 28 | "$r12", "$r13", "$sp", "$pc", |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 29 | }; |
| 30 | |
| 31 | static const char *pregnames_v10[] = |
| 32 | { |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 33 | "$bz", "$vr", "$p2", "$p3", |
| 34 | "$wz", "$ccr", "$p6-prefix", "$mof", |
| 35 | "$dz", "$ibr", "$irp", "$srp", |
| 36 | "$bar", "$dccr", "$brp", "$usp", |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 37 | }; |
| 38 | |
| 39 | /* We need this table to handle preg-moves with implicit width. */ |
| 40 | static int preg_sizes_v10[] = { |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 41 | 1, /* bz. */ |
| 42 | 1, /* vr. */ |
| 43 | 1, /* pid. */ |
| 44 | 1, /* srs. */ |
| 45 | 2, /* wz. */ |
| 46 | 2, 2, 4, |
| 47 | 4, 4, 4, 4, |
| 48 | 4, 4, 4, 4, |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 49 | }; |
| 50 | |
| 51 | static inline int dec10_size(unsigned int size) |
| 52 | { |
| 53 | size++; |
| 54 | if (size == 3) |
| 55 | size++; |
| 56 | return size; |
| 57 | } |
| 58 | |
| 59 | static inline void cris_illegal_insn(DisasContext *dc) |
| 60 | { |
| 61 | qemu_log("illegal insn at pc=%x\n", dc->pc); |
| 62 | t_gen_raise_exception(EXCP_BREAK); |
| 63 | } |
| 64 | |
Stefan Sandstrom | 774d5c5 | 2011-12-12 11:38:31 +0100 | [diff] [blame] | 65 | static void gen_store_v10_conditional(DisasContext *dc, TCGv addr, TCGv val, |
| 66 | unsigned int size, int mem_index) |
| 67 | { |
Richard Henderson | 42a268c | 2015-02-13 12:51:55 -0800 | [diff] [blame] | 68 | TCGLabel *l1 = gen_new_label(); |
Stefan Sandstrom | 774d5c5 | 2011-12-12 11:38:31 +0100 | [diff] [blame] | 69 | TCGv taddr = tcg_temp_local_new(); |
| 70 | TCGv tval = tcg_temp_local_new(); |
| 71 | TCGv t1 = tcg_temp_local_new(); |
| 72 | dc->postinc = 0; |
| 73 | cris_evaluate_flags(dc); |
| 74 | |
| 75 | tcg_gen_mov_tl(taddr, addr); |
| 76 | tcg_gen_mov_tl(tval, val); |
| 77 | |
| 78 | /* Store only if F flag isn't set */ |
| 79 | tcg_gen_andi_tl(t1, cpu_PR[PR_CCS], F_FLAG_V10); |
| 80 | tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); |
| 81 | if (size == 1) { |
| 82 | tcg_gen_qemu_st8(tval, taddr, mem_index); |
| 83 | } else if (size == 2) { |
| 84 | tcg_gen_qemu_st16(tval, taddr, mem_index); |
| 85 | } else { |
| 86 | tcg_gen_qemu_st32(tval, taddr, mem_index); |
| 87 | } |
| 88 | gen_set_label(l1); |
| 89 | tcg_gen_shri_tl(t1, t1, 1); /* shift F to P position */ |
| 90 | tcg_gen_or_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], t1); /*P=F*/ |
| 91 | tcg_temp_free(t1); |
| 92 | tcg_temp_free(tval); |
| 93 | tcg_temp_free(taddr); |
| 94 | } |
| 95 | |
| 96 | static void gen_store_v10(DisasContext *dc, TCGv addr, TCGv val, |
| 97 | unsigned int size) |
| 98 | { |
Benjamin Herrenschmidt | 97ed5cc | 2015-08-17 17:34:10 +1000 | [diff] [blame] | 99 | int mem_index = cpu_mmu_index(&dc->cpu->env, false); |
Stefan Sandstrom | 774d5c5 | 2011-12-12 11:38:31 +0100 | [diff] [blame] | 100 | |
| 101 | /* If we get a fault on a delayslot we must keep the jmp state in |
| 102 | the cpu-state to be able to re-execute the jmp. */ |
| 103 | if (dc->delayed_branch == 1) { |
| 104 | cris_store_direct_jmp(dc); |
| 105 | } |
| 106 | |
| 107 | /* Conditional writes. We only support the kind were X is known |
| 108 | at translation time. */ |
| 109 | if (dc->flagx_known && dc->flags_x) { |
| 110 | gen_store_v10_conditional(dc, addr, val, size, mem_index); |
| 111 | return; |
| 112 | } |
| 113 | |
| 114 | if (size == 1) { |
| 115 | tcg_gen_qemu_st8(val, addr, mem_index); |
| 116 | } else if (size == 2) { |
| 117 | tcg_gen_qemu_st16(val, addr, mem_index); |
| 118 | } else { |
| 119 | tcg_gen_qemu_st32(val, addr, mem_index); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 124 | /* Prefix flag and register are used to handle the more complex |
| 125 | addressing modes. */ |
| 126 | static void cris_set_prefix(DisasContext *dc) |
| 127 | { |
| 128 | dc->clear_prefix = 0; |
| 129 | dc->tb_flags |= PFIX_FLAG; |
| 130 | tcg_gen_ori_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], PFIX_FLAG); |
| 131 | |
| 132 | /* prefix insns dont clear the x flag. */ |
| 133 | dc->clear_x = 0; |
| 134 | cris_lock_irq(dc); |
| 135 | } |
| 136 | |
| 137 | static void crisv10_prepare_memaddr(DisasContext *dc, |
| 138 | TCGv addr, unsigned int size) |
| 139 | { |
| 140 | if (dc->tb_flags & PFIX_FLAG) { |
| 141 | tcg_gen_mov_tl(addr, cpu_PR[PR_PREFIX]); |
| 142 | } else { |
| 143 | tcg_gen_mov_tl(addr, cpu_R[dc->src]); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | static unsigned int crisv10_post_memaddr(DisasContext *dc, unsigned int size) |
| 148 | { |
| 149 | unsigned int insn_len = 0; |
| 150 | |
| 151 | if (dc->tb_flags & PFIX_FLAG) { |
| 152 | if (dc->mode == CRISV10_MODE_AUTOINC) { |
| 153 | tcg_gen_mov_tl(cpu_R[dc->src], cpu_PR[PR_PREFIX]); |
| 154 | } |
| 155 | } else { |
| 156 | if (dc->mode == CRISV10_MODE_AUTOINC) { |
| 157 | if (dc->src == 15) { |
| 158 | insn_len += size & ~1; |
| 159 | } else { |
| 160 | tcg_gen_addi_tl(cpu_R[dc->src], cpu_R[dc->src], size); |
| 161 | } |
| 162 | } |
| 163 | } |
| 164 | return insn_len; |
| 165 | } |
| 166 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 167 | static int dec10_prep_move_m(CPUCRISState *env, DisasContext *dc, |
| 168 | int s_ext, int memsize, TCGv dst) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 169 | { |
Blue Swirl | 03e654c | 2010-10-13 18:38:08 +0000 | [diff] [blame] | 170 | unsigned int rs; |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 171 | uint32_t imm; |
| 172 | int is_imm; |
| 173 | int insn_len = 0; |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 174 | |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 175 | rs = dc->src; |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 176 | is_imm = rs == 15 && !(dc->tb_flags & PFIX_FLAG); |
| 177 | LOG_DIS("rs=%d rd=%d is_imm=%d mode=%d pfix=%d\n", |
Blue Swirl | 03e654c | 2010-10-13 18:38:08 +0000 | [diff] [blame] | 178 | rs, dc->dst, is_imm, dc->mode, dc->tb_flags & PFIX_FLAG); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 179 | |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 180 | /* Load [$rs] onto T1. */ |
| 181 | if (is_imm) { |
| 182 | if (memsize != 4) { |
| 183 | if (s_ext) { |
| 184 | if (memsize == 1) |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 185 | imm = cpu_ldsb_code(env, dc->pc + 2); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 186 | else |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 187 | imm = cpu_ldsw_code(env, dc->pc + 2); |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 188 | } else { |
| 189 | if (memsize == 1) |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 190 | imm = cpu_ldub_code(env, dc->pc + 2); |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 191 | else |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 192 | imm = cpu_lduw_code(env, dc->pc + 2); |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 193 | } |
| 194 | } else |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 195 | imm = cpu_ldl_code(env, dc->pc + 2); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 196 | |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 197 | tcg_gen_movi_tl(dst, imm); |
| 198 | |
| 199 | if (dc->mode == CRISV10_MODE_AUTOINC) { |
| 200 | insn_len += memsize; |
| 201 | if (memsize == 1) |
| 202 | insn_len++; |
| 203 | tcg_gen_addi_tl(cpu_R[15], cpu_R[15], insn_len); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 204 | } |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 205 | } else { |
| 206 | TCGv addr; |
| 207 | |
| 208 | addr = tcg_temp_new(); |
| 209 | cris_flush_cc_state(dc); |
| 210 | crisv10_prepare_memaddr(dc, addr, memsize); |
| 211 | gen_load(dc, dst, addr, memsize, 0); |
| 212 | if (s_ext) |
| 213 | t_gen_sext(dst, dst, memsize); |
| 214 | else |
| 215 | t_gen_zext(dst, dst, memsize); |
| 216 | insn_len += crisv10_post_memaddr(dc, memsize); |
| 217 | tcg_temp_free(addr); |
| 218 | } |
| 219 | |
| 220 | if (dc->mode == CRISV10_MODE_INDIRECT && (dc->tb_flags & PFIX_FLAG)) { |
| 221 | dc->dst = dc->src; |
| 222 | } |
| 223 | return insn_len; |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 224 | } |
| 225 | |
| 226 | static unsigned int dec10_quick_imm(DisasContext *dc) |
| 227 | { |
| 228 | int32_t imm, simm; |
| 229 | int op; |
| 230 | |
| 231 | /* sign extend. */ |
| 232 | imm = dc->ir & ((1 << 6) - 1); |
| 233 | simm = (int8_t) (imm << 2); |
| 234 | simm >>= 2; |
| 235 | switch (dc->opcode) { |
| 236 | case CRISV10_QIMM_BDAP_R0: |
| 237 | case CRISV10_QIMM_BDAP_R1: |
| 238 | case CRISV10_QIMM_BDAP_R2: |
| 239 | case CRISV10_QIMM_BDAP_R3: |
| 240 | simm = (int8_t)dc->ir; |
| 241 | LOG_DIS("bdap %d $r%d\n", simm, dc->dst); |
| 242 | LOG_DIS("pc=%x mode=%x quickimm %d r%d r%d\n", |
| 243 | dc->pc, dc->mode, dc->opcode, dc->src, dc->dst); |
| 244 | cris_set_prefix(dc); |
| 245 | if (dc->dst == 15) { |
| 246 | tcg_gen_movi_tl(cpu_PR[PR_PREFIX], dc->pc + 2 + simm); |
| 247 | } else { |
| 248 | tcg_gen_addi_tl(cpu_PR[PR_PREFIX], cpu_R[dc->dst], simm); |
| 249 | } |
| 250 | break; |
| 251 | |
| 252 | case CRISV10_QIMM_MOVEQ: |
| 253 | LOG_DIS("moveq %d, $r%d\n", simm, dc->dst); |
| 254 | |
| 255 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 256 | cris_alu(dc, CC_OP_MOVE, cpu_R[dc->dst], |
| 257 | cpu_R[dc->dst], tcg_const_tl(simm), 4); |
| 258 | break; |
| 259 | case CRISV10_QIMM_CMPQ: |
| 260 | LOG_DIS("cmpq %d, $r%d\n", simm, dc->dst); |
| 261 | |
| 262 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 263 | cris_alu(dc, CC_OP_CMP, cpu_R[dc->dst], |
| 264 | cpu_R[dc->dst], tcg_const_tl(simm), 4); |
| 265 | break; |
| 266 | case CRISV10_QIMM_ADDQ: |
| 267 | LOG_DIS("addq %d, $r%d\n", imm, dc->dst); |
| 268 | |
| 269 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 270 | cris_alu(dc, CC_OP_ADD, cpu_R[dc->dst], |
| 271 | cpu_R[dc->dst], tcg_const_tl(imm), 4); |
| 272 | break; |
| 273 | case CRISV10_QIMM_ANDQ: |
| 274 | LOG_DIS("andq %d, $r%d\n", simm, dc->dst); |
| 275 | |
| 276 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 277 | cris_alu(dc, CC_OP_AND, cpu_R[dc->dst], |
| 278 | cpu_R[dc->dst], tcg_const_tl(simm), 4); |
| 279 | break; |
| 280 | case CRISV10_QIMM_ASHQ: |
| 281 | LOG_DIS("ashq %d, $r%d\n", simm, dc->dst); |
| 282 | |
| 283 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 284 | op = imm & (1 << 5); |
| 285 | imm &= 0x1f; |
| 286 | if (op) { |
| 287 | cris_alu(dc, CC_OP_ASR, cpu_R[dc->dst], |
| 288 | cpu_R[dc->dst], tcg_const_tl(imm), 4); |
| 289 | } else { |
| 290 | /* BTST */ |
| 291 | cris_update_cc_op(dc, CC_OP_FLAGS, 4); |
Aurelien Jarno | febc992 | 2012-08-30 16:56:39 +0200 | [diff] [blame] | 292 | gen_helper_btst(cpu_PR[PR_CCS], cpu_env, cpu_R[dc->dst], |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 293 | tcg_const_tl(imm), cpu_PR[PR_CCS]); |
| 294 | } |
| 295 | break; |
| 296 | case CRISV10_QIMM_LSHQ: |
| 297 | LOG_DIS("lshq %d, $r%d\n", simm, dc->dst); |
| 298 | |
| 299 | op = CC_OP_LSL; |
| 300 | if (imm & (1 << 5)) { |
| 301 | op = CC_OP_LSR; |
| 302 | } |
| 303 | imm &= 0x1f; |
| 304 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 305 | cris_alu(dc, op, cpu_R[dc->dst], |
| 306 | cpu_R[dc->dst], tcg_const_tl(imm), 4); |
| 307 | break; |
| 308 | case CRISV10_QIMM_SUBQ: |
| 309 | LOG_DIS("subq %d, $r%d\n", imm, dc->dst); |
| 310 | |
| 311 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 312 | cris_alu(dc, CC_OP_SUB, cpu_R[dc->dst], |
| 313 | cpu_R[dc->dst], tcg_const_tl(imm), 4); |
| 314 | break; |
| 315 | case CRISV10_QIMM_ORQ: |
| 316 | LOG_DIS("andq %d, $r%d\n", simm, dc->dst); |
| 317 | |
| 318 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 319 | cris_alu(dc, CC_OP_OR, cpu_R[dc->dst], |
| 320 | cpu_R[dc->dst], tcg_const_tl(simm), 4); |
| 321 | break; |
| 322 | |
| 323 | case CRISV10_QIMM_BCC_R0: |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 324 | case CRISV10_QIMM_BCC_R1: |
| 325 | case CRISV10_QIMM_BCC_R2: |
| 326 | case CRISV10_QIMM_BCC_R3: |
| 327 | imm = dc->ir & 0xff; |
| 328 | /* bit 0 is a sign bit. */ |
| 329 | if (imm & 1) { |
| 330 | imm |= 0xffffff00; /* sign extend. */ |
| 331 | imm &= ~1; /* get rid of the sign bit. */ |
| 332 | } |
| 333 | imm += 2; |
| 334 | LOG_DIS("b%s %d\n", cc_name(dc->cond), imm); |
| 335 | |
| 336 | cris_cc_mask(dc, 0); |
| 337 | cris_prepare_cc_branch(dc, imm, dc->cond); |
| 338 | break; |
| 339 | |
| 340 | default: |
| 341 | LOG_DIS("pc=%x mode=%x quickimm %d r%d r%d\n", |
| 342 | dc->pc, dc->mode, dc->opcode, dc->src, dc->dst); |
Andreas Färber | 0dd106c | 2013-09-03 18:42:27 +0200 | [diff] [blame] | 343 | cpu_abort(CPU(dc->cpu), "Unhandled quickimm\n"); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 344 | break; |
| 345 | } |
| 346 | return 2; |
| 347 | } |
| 348 | |
| 349 | static unsigned int dec10_setclrf(DisasContext *dc) |
| 350 | { |
| 351 | uint32_t flags; |
| 352 | unsigned int set = ~dc->opcode & 1; |
| 353 | |
| 354 | flags = EXTRACT_FIELD(dc->ir, 0, 3) |
| 355 | | (EXTRACT_FIELD(dc->ir, 12, 15) << 4); |
| 356 | LOG_DIS("%s set=%d flags=%x\n", __func__, set, flags); |
| 357 | |
| 358 | |
| 359 | if (flags & X_FLAG) { |
| 360 | dc->flagx_known = 1; |
| 361 | if (set) |
| 362 | dc->flags_x = X_FLAG; |
| 363 | else |
| 364 | dc->flags_x = 0; |
| 365 | } |
| 366 | |
| 367 | cris_evaluate_flags (dc); |
| 368 | cris_update_cc_op(dc, CC_OP_FLAGS, 4); |
| 369 | cris_update_cc_x(dc); |
| 370 | tcg_gen_movi_tl(cc_op, dc->cc_op); |
| 371 | |
| 372 | if (set) { |
| 373 | tcg_gen_ori_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], flags); |
| 374 | } else { |
Stefan Sandstrom | 774d5c5 | 2011-12-12 11:38:31 +0100 | [diff] [blame] | 375 | tcg_gen_andi_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], |
| 376 | ~(flags|F_FLAG_V10|P_FLAG_V10)); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | dc->flags_uptodate = 1; |
| 380 | dc->clear_x = 0; |
| 381 | cris_lock_irq(dc); |
| 382 | return 2; |
| 383 | } |
| 384 | |
| 385 | static inline void dec10_reg_prep_sext(DisasContext *dc, int size, int sext, |
| 386 | TCGv dd, TCGv ds, TCGv sd, TCGv ss) |
| 387 | { |
| 388 | if (sext) { |
| 389 | t_gen_sext(dd, sd, size); |
| 390 | t_gen_sext(ds, ss, size); |
| 391 | } else { |
| 392 | t_gen_zext(dd, sd, size); |
| 393 | t_gen_zext(ds, ss, size); |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | static void dec10_reg_alu(DisasContext *dc, int op, int size, int sext) |
| 398 | { |
| 399 | TCGv t[2]; |
| 400 | |
| 401 | t[0] = tcg_temp_new(); |
| 402 | t[1] = tcg_temp_new(); |
| 403 | dec10_reg_prep_sext(dc, size, sext, |
| 404 | t[0], t[1], cpu_R[dc->dst], cpu_R[dc->src]); |
| 405 | |
| 406 | if (op == CC_OP_LSL || op == CC_OP_LSR || op == CC_OP_ASR) { |
| 407 | tcg_gen_andi_tl(t[1], t[1], 63); |
| 408 | } |
| 409 | |
| 410 | assert(dc->dst != 15); |
| 411 | cris_alu(dc, op, cpu_R[dc->dst], t[0], t[1], size); |
| 412 | tcg_temp_free(t[0]); |
| 413 | tcg_temp_free(t[1]); |
| 414 | } |
| 415 | |
| 416 | static void dec10_reg_bound(DisasContext *dc, int size) |
| 417 | { |
| 418 | TCGv t; |
| 419 | |
| 420 | t = tcg_temp_local_new(); |
| 421 | t_gen_zext(t, cpu_R[dc->src], size); |
| 422 | cris_alu(dc, CC_OP_BOUND, cpu_R[dc->dst], cpu_R[dc->dst], t, 4); |
| 423 | tcg_temp_free(t); |
| 424 | } |
| 425 | |
| 426 | static void dec10_reg_mul(DisasContext *dc, int size, int sext) |
| 427 | { |
| 428 | int op = sext ? CC_OP_MULS : CC_OP_MULU; |
| 429 | TCGv t[2]; |
| 430 | |
| 431 | t[0] = tcg_temp_new(); |
| 432 | t[1] = tcg_temp_new(); |
| 433 | dec10_reg_prep_sext(dc, size, sext, |
| 434 | t[0], t[1], cpu_R[dc->dst], cpu_R[dc->src]); |
| 435 | |
| 436 | cris_alu(dc, op, cpu_R[dc->dst], t[0], t[1], 4); |
| 437 | |
| 438 | tcg_temp_free(t[0]); |
| 439 | tcg_temp_free(t[1]); |
| 440 | } |
| 441 | |
| 442 | |
| 443 | static void dec10_reg_movs(DisasContext *dc) |
| 444 | { |
| 445 | int size = (dc->size & 1) + 1; |
| 446 | TCGv t; |
| 447 | |
| 448 | LOG_DIS("movx.%d $r%d, $r%d\n", size, dc->src, dc->dst); |
| 449 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 450 | |
| 451 | t = tcg_temp_new(); |
| 452 | if (dc->ir & 32) |
| 453 | t_gen_sext(t, cpu_R[dc->src], size); |
| 454 | else |
| 455 | t_gen_zext(t, cpu_R[dc->src], size); |
| 456 | |
| 457 | cris_alu(dc, CC_OP_MOVE, cpu_R[dc->dst], cpu_R[dc->dst], t, 4); |
| 458 | tcg_temp_free(t); |
| 459 | } |
| 460 | |
| 461 | static void dec10_reg_alux(DisasContext *dc, int op) |
| 462 | { |
| 463 | int size = (dc->size & 1) + 1; |
| 464 | TCGv t; |
| 465 | |
| 466 | LOG_DIS("movx.%d $r%d, $r%d\n", size, dc->src, dc->dst); |
| 467 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 468 | |
| 469 | t = tcg_temp_new(); |
| 470 | if (dc->ir & 32) |
| 471 | t_gen_sext(t, cpu_R[dc->src], size); |
| 472 | else |
| 473 | t_gen_zext(t, cpu_R[dc->src], size); |
| 474 | |
| 475 | cris_alu(dc, op, cpu_R[dc->dst], cpu_R[dc->dst], t, 4); |
| 476 | tcg_temp_free(t); |
| 477 | } |
| 478 | |
| 479 | static void dec10_reg_mov_pr(DisasContext *dc) |
| 480 | { |
| 481 | LOG_DIS("move p%d r%d sz=%d\n", dc->dst, dc->src, preg_sizes_v10[dc->dst]); |
| 482 | cris_lock_irq(dc); |
| 483 | if (dc->src == 15) { |
| 484 | tcg_gen_mov_tl(env_btarget, cpu_PR[dc->dst]); |
| 485 | cris_prepare_jmp(dc, JMP_INDIRECT); |
| 486 | return; |
| 487 | } |
| 488 | if (dc->dst == PR_CCS) { |
| 489 | cris_evaluate_flags(dc); |
| 490 | } |
| 491 | cris_alu(dc, CC_OP_MOVE, cpu_R[dc->src], |
| 492 | cpu_R[dc->src], cpu_PR[dc->dst], preg_sizes_v10[dc->dst]); |
| 493 | } |
| 494 | |
| 495 | static void dec10_reg_abs(DisasContext *dc) |
| 496 | { |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 497 | TCGv t0; |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 498 | |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 499 | LOG_DIS("abs $r%u, $r%u\n", dc->src, dc->dst); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 500 | |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 501 | assert(dc->dst != 15); |
| 502 | t0 = tcg_temp_new(); |
| 503 | tcg_gen_sari_tl(t0, cpu_R[dc->src], 31); |
| 504 | tcg_gen_xor_tl(cpu_R[dc->dst], cpu_R[dc->src], t0); |
| 505 | tcg_gen_sub_tl(t0, cpu_R[dc->dst], t0); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 506 | |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 507 | cris_alu(dc, CC_OP_MOVE, cpu_R[dc->dst], cpu_R[dc->dst], t0, 4); |
| 508 | tcg_temp_free(t0); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 509 | } |
| 510 | |
| 511 | static void dec10_reg_swap(DisasContext *dc) |
| 512 | { |
| 513 | TCGv t0; |
| 514 | |
| 515 | LOG_DIS("not $r%d, $r%d\n", dc->src, dc->dst); |
| 516 | |
| 517 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 518 | t0 = tcg_temp_new(); |
Peter Maydell | 08397c4 | 2014-06-07 18:03:01 +0100 | [diff] [blame] | 519 | tcg_gen_mov_tl(t0, cpu_R[dc->src]); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 520 | if (dc->dst & 8) |
| 521 | tcg_gen_not_tl(t0, t0); |
| 522 | if (dc->dst & 4) |
| 523 | t_gen_swapw(t0, t0); |
| 524 | if (dc->dst & 2) |
| 525 | t_gen_swapb(t0, t0); |
| 526 | if (dc->dst & 1) |
| 527 | t_gen_swapr(t0, t0); |
| 528 | cris_alu(dc, CC_OP_MOVE, cpu_R[dc->src], cpu_R[dc->src], t0, 4); |
| 529 | tcg_temp_free(t0); |
| 530 | } |
| 531 | |
| 532 | static void dec10_reg_scc(DisasContext *dc) |
| 533 | { |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 534 | int cond = dc->dst; |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 535 | |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 536 | LOG_DIS("s%s $r%u\n", cc_name(cond), dc->src); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 537 | |
Richard Henderson | 8817401 | 2015-09-02 11:38:10 -0700 | [diff] [blame] | 538 | gen_tst_cc(dc, cpu_R[dc->src], cond); |
| 539 | tcg_gen_setcondi_tl(TCG_COND_NE, cpu_R[dc->src], cpu_R[dc->src], 0); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 540 | |
Edgar E. Iglesias | bf76baf | 2010-02-15 23:39:48 +0100 | [diff] [blame] | 541 | cris_cc_mask(dc, 0); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 542 | } |
| 543 | |
| 544 | static unsigned int dec10_reg(DisasContext *dc) |
| 545 | { |
| 546 | TCGv t; |
| 547 | unsigned int insn_len = 2; |
| 548 | unsigned int size = dec10_size(dc->size); |
| 549 | unsigned int tmp; |
| 550 | |
| 551 | if (dc->size != 3) { |
| 552 | switch (dc->opcode) { |
| 553 | case CRISV10_REG_MOVE_R: |
| 554 | LOG_DIS("move.%d $r%d, $r%d\n", dc->size, dc->src, dc->dst); |
| 555 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 556 | dec10_reg_alu(dc, CC_OP_MOVE, size, 0); |
| 557 | if (dc->dst == 15) { |
| 558 | tcg_gen_mov_tl(env_btarget, cpu_R[dc->dst]); |
| 559 | cris_prepare_jmp(dc, JMP_INDIRECT); |
| 560 | dc->delayed_branch = 1; |
| 561 | } |
| 562 | break; |
| 563 | case CRISV10_REG_MOVX: |
| 564 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 565 | dec10_reg_movs(dc); |
| 566 | break; |
| 567 | case CRISV10_REG_ADDX: |
| 568 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 569 | dec10_reg_alux(dc, CC_OP_ADD); |
| 570 | break; |
| 571 | case CRISV10_REG_SUBX: |
| 572 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 573 | dec10_reg_alux(dc, CC_OP_SUB); |
| 574 | break; |
| 575 | case CRISV10_REG_ADD: |
| 576 | LOG_DIS("add $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 577 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 578 | dec10_reg_alu(dc, CC_OP_ADD, size, 0); |
| 579 | break; |
| 580 | case CRISV10_REG_SUB: |
| 581 | LOG_DIS("sub $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 582 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 583 | dec10_reg_alu(dc, CC_OP_SUB, size, 0); |
| 584 | break; |
| 585 | case CRISV10_REG_CMP: |
| 586 | LOG_DIS("cmp $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 587 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 588 | dec10_reg_alu(dc, CC_OP_CMP, size, 0); |
| 589 | break; |
| 590 | case CRISV10_REG_BOUND: |
| 591 | LOG_DIS("bound $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 592 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 593 | dec10_reg_bound(dc, size); |
| 594 | break; |
| 595 | case CRISV10_REG_AND: |
| 596 | LOG_DIS("and $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 597 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 598 | dec10_reg_alu(dc, CC_OP_AND, size, 0); |
| 599 | break; |
| 600 | case CRISV10_REG_ADDI: |
| 601 | if (dc->src == 15) { |
| 602 | /* nop. */ |
| 603 | return 2; |
| 604 | } |
| 605 | t = tcg_temp_new(); |
| 606 | LOG_DIS("addi r%d r%d size=%d\n", dc->src, dc->dst, dc->size); |
| 607 | tcg_gen_shli_tl(t, cpu_R[dc->dst], dc->size & 3); |
| 608 | tcg_gen_add_tl(cpu_R[dc->src], cpu_R[dc->src], t); |
| 609 | tcg_temp_free(t); |
| 610 | break; |
| 611 | case CRISV10_REG_LSL: |
| 612 | LOG_DIS("lsl $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 613 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 614 | dec10_reg_alu(dc, CC_OP_LSL, size, 0); |
| 615 | break; |
| 616 | case CRISV10_REG_LSR: |
| 617 | LOG_DIS("lsr $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 618 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 619 | dec10_reg_alu(dc, CC_OP_LSR, size, 0); |
| 620 | break; |
| 621 | case CRISV10_REG_ASR: |
| 622 | LOG_DIS("asr $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 623 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 624 | dec10_reg_alu(dc, CC_OP_ASR, size, 1); |
| 625 | break; |
| 626 | case CRISV10_REG_OR: |
| 627 | LOG_DIS("or $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 628 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 629 | dec10_reg_alu(dc, CC_OP_OR, size, 0); |
| 630 | break; |
| 631 | case CRISV10_REG_NEG: |
| 632 | LOG_DIS("neg $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 633 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 634 | dec10_reg_alu(dc, CC_OP_NEG, size, 0); |
| 635 | break; |
| 636 | case CRISV10_REG_BIAP: |
| 637 | LOG_DIS("BIAP pc=%x reg %d r%d r%d size=%d\n", dc->pc, |
| 638 | dc->opcode, dc->src, dc->dst, size); |
| 639 | switch (size) { |
| 640 | case 4: tmp = 2; break; |
| 641 | case 2: tmp = 1; break; |
| 642 | case 1: tmp = 0; break; |
Blue Swirl | 43dc2a6 | 2010-03-18 18:41:57 +0000 | [diff] [blame] | 643 | default: |
Andreas Färber | 0dd106c | 2013-09-03 18:42:27 +0200 | [diff] [blame] | 644 | cpu_abort(CPU(dc->cpu), "Unhandled BIAP"); |
Blue Swirl | 43dc2a6 | 2010-03-18 18:41:57 +0000 | [diff] [blame] | 645 | break; |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 646 | } |
| 647 | |
| 648 | t = tcg_temp_new(); |
| 649 | tcg_gen_shli_tl(t, cpu_R[dc->dst], tmp); |
| 650 | if (dc->src == 15) { |
| 651 | tcg_gen_addi_tl(cpu_PR[PR_PREFIX], t, ((dc->pc +2)| 1) + 1); |
| 652 | } else { |
| 653 | tcg_gen_add_tl(cpu_PR[PR_PREFIX], cpu_R[dc->src], t); |
| 654 | } |
| 655 | tcg_temp_free(t); |
| 656 | cris_set_prefix(dc); |
| 657 | break; |
| 658 | |
| 659 | default: |
| 660 | LOG_DIS("pc=%x reg %d r%d r%d\n", dc->pc, |
| 661 | dc->opcode, dc->src, dc->dst); |
Andreas Färber | 0dd106c | 2013-09-03 18:42:27 +0200 | [diff] [blame] | 662 | cpu_abort(CPU(dc->cpu), "Unhandled opcode"); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 663 | break; |
| 664 | } |
| 665 | } else { |
| 666 | switch (dc->opcode) { |
| 667 | case CRISV10_REG_MOVX: |
| 668 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 669 | dec10_reg_movs(dc); |
| 670 | break; |
| 671 | case CRISV10_REG_ADDX: |
| 672 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 673 | dec10_reg_alux(dc, CC_OP_ADD); |
| 674 | break; |
| 675 | case CRISV10_REG_SUBX: |
| 676 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 677 | dec10_reg_alux(dc, CC_OP_SUB); |
| 678 | break; |
| 679 | case CRISV10_REG_MOVE_SPR_R: |
| 680 | cris_evaluate_flags(dc); |
| 681 | cris_cc_mask(dc, 0); |
| 682 | dec10_reg_mov_pr(dc); |
| 683 | break; |
| 684 | case CRISV10_REG_MOVE_R_SPR: |
| 685 | LOG_DIS("move r%d p%d\n", dc->src, dc->dst); |
| 686 | cris_evaluate_flags(dc); |
| 687 | if (dc->src != 11) /* fast for srp. */ |
| 688 | dc->cpustate_changed = 1; |
| 689 | t_gen_mov_preg_TN(dc, dc->dst, cpu_R[dc->src]); |
| 690 | break; |
| 691 | case CRISV10_REG_SETF: |
| 692 | case CRISV10_REG_CLEARF: |
| 693 | dec10_setclrf(dc); |
| 694 | break; |
| 695 | case CRISV10_REG_SWAP: |
| 696 | dec10_reg_swap(dc); |
| 697 | break; |
| 698 | case CRISV10_REG_ABS: |
| 699 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 700 | dec10_reg_abs(dc); |
| 701 | break; |
| 702 | case CRISV10_REG_LZ: |
| 703 | LOG_DIS("lz $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 704 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 705 | dec10_reg_alu(dc, CC_OP_LZ, 4, 0); |
| 706 | break; |
| 707 | case CRISV10_REG_XOR: |
| 708 | LOG_DIS("xor $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 709 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 710 | dec10_reg_alu(dc, CC_OP_XOR, 4, 0); |
| 711 | break; |
| 712 | case CRISV10_REG_BTST: |
| 713 | LOG_DIS("btst $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 714 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 715 | cris_update_cc_op(dc, CC_OP_FLAGS, 4); |
Aurelien Jarno | febc992 | 2012-08-30 16:56:39 +0200 | [diff] [blame] | 716 | gen_helper_btst(cpu_PR[PR_CCS], cpu_env, cpu_R[dc->dst], |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 717 | cpu_R[dc->src], cpu_PR[PR_CCS]); |
| 718 | break; |
| 719 | case CRISV10_REG_DSTEP: |
| 720 | LOG_DIS("dstep $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 721 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 722 | cris_alu(dc, CC_OP_DSTEP, cpu_R[dc->dst], |
| 723 | cpu_R[dc->dst], cpu_R[dc->src], 4); |
| 724 | break; |
| 725 | case CRISV10_REG_MSTEP: |
| 726 | LOG_DIS("mstep $r%d, $r%d sz=%d\n", dc->src, dc->dst, size); |
| 727 | cris_evaluate_flags(dc); |
| 728 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 729 | cris_alu(dc, CC_OP_MSTEP, cpu_R[dc->dst], |
| 730 | cpu_R[dc->dst], cpu_R[dc->src], 4); |
| 731 | break; |
| 732 | case CRISV10_REG_SCC: |
| 733 | dec10_reg_scc(dc); |
| 734 | break; |
| 735 | default: |
| 736 | LOG_DIS("pc=%x reg %d r%d r%d\n", dc->pc, |
| 737 | dc->opcode, dc->src, dc->dst); |
Andreas Färber | 0dd106c | 2013-09-03 18:42:27 +0200 | [diff] [blame] | 738 | cpu_abort(CPU(dc->cpu), "Unhandled opcode"); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 739 | break; |
| 740 | } |
| 741 | } |
| 742 | return insn_len; |
| 743 | } |
| 744 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 745 | static unsigned int dec10_ind_move_m_r(CPUCRISState *env, DisasContext *dc, |
| 746 | unsigned int size) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 747 | { |
| 748 | unsigned int insn_len = 2; |
| 749 | TCGv t; |
| 750 | |
| 751 | LOG_DIS("%s: move.%d [$r%d], $r%d\n", __func__, |
| 752 | size, dc->src, dc->dst); |
| 753 | |
| 754 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 755 | t = tcg_temp_new(); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 756 | insn_len += dec10_prep_move_m(env, dc, 0, size, t); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 757 | cris_alu(dc, CC_OP_MOVE, cpu_R[dc->dst], cpu_R[dc->dst], t, size); |
| 758 | if (dc->dst == 15) { |
| 759 | tcg_gen_mov_tl(env_btarget, cpu_R[dc->dst]); |
| 760 | cris_prepare_jmp(dc, JMP_INDIRECT); |
| 761 | dc->delayed_branch = 1; |
| 762 | return insn_len; |
| 763 | } |
| 764 | |
| 765 | tcg_temp_free(t); |
| 766 | return insn_len; |
| 767 | } |
| 768 | |
| 769 | static unsigned int dec10_ind_move_r_m(DisasContext *dc, unsigned int size) |
| 770 | { |
| 771 | unsigned int insn_len = 2; |
| 772 | TCGv addr; |
| 773 | |
| 774 | LOG_DIS("move.%d $r%d, [$r%d]\n", dc->size, dc->src, dc->dst); |
| 775 | addr = tcg_temp_new(); |
| 776 | crisv10_prepare_memaddr(dc, addr, size); |
Stefan Sandstrom | 774d5c5 | 2011-12-12 11:38:31 +0100 | [diff] [blame] | 777 | gen_store_v10(dc, addr, cpu_R[dc->dst], size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 778 | insn_len += crisv10_post_memaddr(dc, size); |
| 779 | |
| 780 | return insn_len; |
| 781 | } |
| 782 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 783 | static unsigned int dec10_ind_move_m_pr(CPUCRISState *env, DisasContext *dc) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 784 | { |
| 785 | unsigned int insn_len = 2, rd = dc->dst; |
| 786 | TCGv t, addr; |
| 787 | |
| 788 | LOG_DIS("move.%d $p%d, [$r%d]\n", dc->size, dc->dst, dc->src); |
| 789 | cris_lock_irq(dc); |
| 790 | |
| 791 | addr = tcg_temp_new(); |
| 792 | t = tcg_temp_new(); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 793 | insn_len += dec10_prep_move_m(env, dc, 0, 4, t); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 794 | if (rd == 15) { |
| 795 | tcg_gen_mov_tl(env_btarget, t); |
| 796 | cris_prepare_jmp(dc, JMP_INDIRECT); |
| 797 | dc->delayed_branch = 1; |
| 798 | return insn_len; |
| 799 | } |
| 800 | |
| 801 | tcg_gen_mov_tl(cpu_PR[rd], t); |
| 802 | dc->cpustate_changed = 1; |
| 803 | tcg_temp_free(addr); |
| 804 | tcg_temp_free(t); |
| 805 | return insn_len; |
| 806 | } |
| 807 | |
| 808 | static unsigned int dec10_ind_move_pr_m(DisasContext *dc) |
| 809 | { |
| 810 | unsigned int insn_len = 2, size = preg_sizes_v10[dc->dst]; |
| 811 | TCGv addr, t0; |
| 812 | |
| 813 | LOG_DIS("move.%d $p%d, [$r%d]\n", dc->size, dc->dst, dc->src); |
| 814 | |
| 815 | addr = tcg_temp_new(); |
| 816 | crisv10_prepare_memaddr(dc, addr, size); |
| 817 | if (dc->dst == PR_CCS) { |
| 818 | t0 = tcg_temp_new(); |
| 819 | cris_evaluate_flags(dc); |
| 820 | tcg_gen_andi_tl(t0, cpu_PR[PR_CCS], ~PFIX_FLAG); |
Stefan Sandstrom | 774d5c5 | 2011-12-12 11:38:31 +0100 | [diff] [blame] | 821 | gen_store_v10(dc, addr, t0, size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 822 | tcg_temp_free(t0); |
| 823 | } else { |
Stefan Sandstrom | 774d5c5 | 2011-12-12 11:38:31 +0100 | [diff] [blame] | 824 | gen_store_v10(dc, addr, cpu_PR[dc->dst], size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 825 | } |
| 826 | t0 = tcg_temp_new(); |
| 827 | insn_len += crisv10_post_memaddr(dc, size); |
| 828 | cris_lock_irq(dc); |
| 829 | |
| 830 | return insn_len; |
| 831 | } |
| 832 | |
| 833 | static void dec10_movem_r_m(DisasContext *dc) |
| 834 | { |
| 835 | int i, pfix = dc->tb_flags & PFIX_FLAG; |
| 836 | TCGv addr, t0; |
| 837 | |
| 838 | LOG_DIS("%s r%d, [r%d] pi=%d ir=%x\n", __func__, |
| 839 | dc->dst, dc->src, dc->postinc, dc->ir); |
| 840 | |
| 841 | addr = tcg_temp_new(); |
| 842 | t0 = tcg_temp_new(); |
| 843 | crisv10_prepare_memaddr(dc, addr, 4); |
| 844 | tcg_gen_mov_tl(t0, addr); |
| 845 | for (i = dc->dst; i >= 0; i--) { |
| 846 | if ((pfix && dc->mode == CRISV10_MODE_AUTOINC) && dc->src == i) { |
Stefan Sandstrom | 774d5c5 | 2011-12-12 11:38:31 +0100 | [diff] [blame] | 847 | gen_store_v10(dc, addr, t0, 4); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 848 | } else { |
Stefan Sandstrom | 774d5c5 | 2011-12-12 11:38:31 +0100 | [diff] [blame] | 849 | gen_store_v10(dc, addr, cpu_R[i], 4); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 850 | } |
| 851 | tcg_gen_addi_tl(addr, addr, 4); |
| 852 | } |
| 853 | |
| 854 | if (pfix && dc->mode == CRISV10_MODE_AUTOINC) { |
| 855 | tcg_gen_mov_tl(cpu_R[dc->src], t0); |
| 856 | } |
| 857 | |
| 858 | if (!pfix && dc->mode == CRISV10_MODE_AUTOINC) { |
| 859 | tcg_gen_mov_tl(cpu_R[dc->src], addr); |
| 860 | } |
| 861 | tcg_temp_free(addr); |
| 862 | tcg_temp_free(t0); |
| 863 | } |
| 864 | |
| 865 | static void dec10_movem_m_r(DisasContext *dc) |
| 866 | { |
| 867 | int i, pfix = dc->tb_flags & PFIX_FLAG; |
| 868 | TCGv addr, t0; |
| 869 | |
| 870 | LOG_DIS("%s [r%d], r%d pi=%d ir=%x\n", __func__, |
| 871 | dc->src, dc->dst, dc->postinc, dc->ir); |
| 872 | |
| 873 | addr = tcg_temp_new(); |
| 874 | t0 = tcg_temp_new(); |
| 875 | crisv10_prepare_memaddr(dc, addr, 4); |
| 876 | tcg_gen_mov_tl(t0, addr); |
| 877 | for (i = dc->dst; i >= 0; i--) { |
| 878 | gen_load(dc, cpu_R[i], addr, 4, 0); |
| 879 | tcg_gen_addi_tl(addr, addr, 4); |
| 880 | } |
| 881 | |
| 882 | if (pfix && dc->mode == CRISV10_MODE_AUTOINC) { |
| 883 | tcg_gen_mov_tl(cpu_R[dc->src], t0); |
| 884 | } |
| 885 | |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 886 | if (!pfix && dc->mode == CRISV10_MODE_AUTOINC) { |
| 887 | tcg_gen_mov_tl(cpu_R[dc->src], addr); |
| 888 | } |
| 889 | tcg_temp_free(addr); |
| 890 | tcg_temp_free(t0); |
| 891 | } |
| 892 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 893 | static int dec10_ind_alu(CPUCRISState *env, DisasContext *dc, |
| 894 | int op, unsigned int size) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 895 | { |
| 896 | int insn_len = 0; |
| 897 | int rd = dc->dst; |
| 898 | TCGv t[2]; |
| 899 | |
| 900 | cris_alu_m_alloc_temps(t); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 901 | insn_len += dec10_prep_move_m(env, dc, 0, size, t[0]); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 902 | cris_alu(dc, op, cpu_R[dc->dst], cpu_R[rd], t[0], size); |
| 903 | if (dc->dst == 15) { |
| 904 | tcg_gen_mov_tl(env_btarget, cpu_R[dc->dst]); |
| 905 | cris_prepare_jmp(dc, JMP_INDIRECT); |
| 906 | dc->delayed_branch = 1; |
| 907 | return insn_len; |
| 908 | } |
| 909 | |
| 910 | cris_alu_m_free_temps(t); |
| 911 | |
| 912 | return insn_len; |
| 913 | } |
| 914 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 915 | static int dec10_ind_bound(CPUCRISState *env, DisasContext *dc, |
| 916 | unsigned int size) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 917 | { |
| 918 | int insn_len = 0; |
| 919 | int rd = dc->dst; |
| 920 | TCGv t; |
| 921 | |
| 922 | t = tcg_temp_local_new(); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 923 | insn_len += dec10_prep_move_m(env, dc, 0, size, t); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 924 | cris_alu(dc, CC_OP_BOUND, cpu_R[dc->dst], cpu_R[rd], t, 4); |
| 925 | if (dc->dst == 15) { |
| 926 | tcg_gen_mov_tl(env_btarget, cpu_R[dc->dst]); |
| 927 | cris_prepare_jmp(dc, JMP_INDIRECT); |
| 928 | dc->delayed_branch = 1; |
| 929 | return insn_len; |
| 930 | } |
| 931 | |
| 932 | tcg_temp_free(t); |
| 933 | return insn_len; |
| 934 | } |
| 935 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 936 | static int dec10_alux_m(CPUCRISState *env, DisasContext *dc, int op) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 937 | { |
| 938 | unsigned int size = (dc->size & 1) ? 2 : 1; |
| 939 | unsigned int sx = !!(dc->size & 2); |
| 940 | int insn_len = 2; |
| 941 | int rd = dc->dst; |
| 942 | TCGv t; |
| 943 | |
| 944 | LOG_DIS("addx size=%d sx=%d op=%d %d\n", size, sx, dc->src, dc->dst); |
| 945 | |
| 946 | t = tcg_temp_new(); |
| 947 | |
| 948 | cris_cc_mask(dc, CC_MASK_NZVC); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 949 | insn_len += dec10_prep_move_m(env, dc, sx, size, t); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 950 | cris_alu(dc, op, cpu_R[dc->dst], cpu_R[rd], t, 4); |
| 951 | if (dc->dst == 15) { |
| 952 | tcg_gen_mov_tl(env_btarget, cpu_R[dc->dst]); |
| 953 | cris_prepare_jmp(dc, JMP_INDIRECT); |
| 954 | dc->delayed_branch = 1; |
| 955 | return insn_len; |
| 956 | } |
| 957 | |
| 958 | tcg_temp_free(t); |
| 959 | return insn_len; |
| 960 | } |
| 961 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 962 | static int dec10_dip(CPUCRISState *env, DisasContext *dc) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 963 | { |
| 964 | int insn_len = 2; |
| 965 | uint32_t imm; |
| 966 | |
| 967 | LOG_DIS("dip pc=%x opcode=%d r%d r%d\n", |
| 968 | dc->pc, dc->opcode, dc->src, dc->dst); |
| 969 | if (dc->src == 15) { |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 970 | imm = cpu_ldl_code(env, dc->pc + 2); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 971 | tcg_gen_movi_tl(cpu_PR[PR_PREFIX], imm); |
| 972 | if (dc->postinc) |
| 973 | insn_len += 4; |
| 974 | tcg_gen_addi_tl(cpu_R[15], cpu_R[15], insn_len - 2); |
| 975 | } else { |
| 976 | gen_load(dc, cpu_PR[PR_PREFIX], cpu_R[dc->src], 4, 0); |
| 977 | if (dc->postinc) |
| 978 | tcg_gen_addi_tl(cpu_R[dc->src], cpu_R[dc->src], 4); |
| 979 | } |
| 980 | |
| 981 | cris_set_prefix(dc); |
| 982 | return insn_len; |
| 983 | } |
| 984 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 985 | static int dec10_bdap_m(CPUCRISState *env, DisasContext *dc, int size) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 986 | { |
| 987 | int insn_len = 2; |
| 988 | int rd = dc->dst; |
| 989 | |
| 990 | LOG_DIS("bdap_m pc=%x opcode=%d r%d r%d sz=%d\n", |
| 991 | dc->pc, dc->opcode, dc->src, dc->dst, size); |
| 992 | |
| 993 | assert(dc->dst != 15); |
| 994 | #if 0 |
| 995 | /* 8bit embedded offset? */ |
| 996 | if (!dc->postinc && (dc->ir & (1 << 11))) { |
| 997 | int simm = dc->ir & 0xff; |
| 998 | |
Andreas Färber | 0dd106c | 2013-09-03 18:42:27 +0200 | [diff] [blame] | 999 | /* cpu_abort(CPU(dc->cpu), "Unhandled opcode"); */ |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1000 | /* sign extended. */ |
| 1001 | simm = (int8_t)simm; |
| 1002 | |
| 1003 | tcg_gen_addi_tl(cpu_PR[PR_PREFIX], cpu_R[dc->dst], simm); |
| 1004 | |
| 1005 | cris_set_prefix(dc); |
| 1006 | return insn_len; |
| 1007 | } |
| 1008 | #endif |
Stefan Weil | 8186e78 | 2011-04-28 17:20:41 +0200 | [diff] [blame] | 1009 | /* Now the rest of the modes are truly indirect. */ |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1010 | insn_len += dec10_prep_move_m(env, dc, 1, size, cpu_PR[PR_PREFIX]); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1011 | tcg_gen_add_tl(cpu_PR[PR_PREFIX], cpu_PR[PR_PREFIX], cpu_R[rd]); |
| 1012 | cris_set_prefix(dc); |
| 1013 | return insn_len; |
| 1014 | } |
| 1015 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1016 | static unsigned int dec10_ind(CPUCRISState *env, DisasContext *dc) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1017 | { |
| 1018 | unsigned int insn_len = 2; |
| 1019 | unsigned int size = dec10_size(dc->size); |
| 1020 | uint32_t imm; |
| 1021 | int32_t simm; |
| 1022 | TCGv t[2]; |
| 1023 | |
| 1024 | if (dc->size != 3) { |
| 1025 | switch (dc->opcode) { |
| 1026 | case CRISV10_IND_MOVE_M_R: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1027 | return dec10_ind_move_m_r(env, dc, size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1028 | break; |
| 1029 | case CRISV10_IND_MOVE_R_M: |
| 1030 | return dec10_ind_move_r_m(dc, size); |
| 1031 | break; |
| 1032 | case CRISV10_IND_CMP: |
| 1033 | LOG_DIS("cmp size=%d op=%d %d\n", size, dc->src, dc->dst); |
| 1034 | cris_cc_mask(dc, CC_MASK_NZVC); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1035 | insn_len += dec10_ind_alu(env, dc, CC_OP_CMP, size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1036 | break; |
| 1037 | case CRISV10_IND_TEST: |
| 1038 | LOG_DIS("test size=%d op=%d %d\n", size, dc->src, dc->dst); |
| 1039 | |
| 1040 | cris_evaluate_flags(dc); |
| 1041 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 1042 | cris_alu_m_alloc_temps(t); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1043 | insn_len += dec10_prep_move_m(env, dc, 0, size, t[0]); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1044 | tcg_gen_andi_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], ~3); |
| 1045 | cris_alu(dc, CC_OP_CMP, cpu_R[dc->dst], |
| 1046 | t[0], tcg_const_tl(0), size); |
| 1047 | cris_alu_m_free_temps(t); |
| 1048 | break; |
| 1049 | case CRISV10_IND_ADD: |
| 1050 | LOG_DIS("add size=%d op=%d %d\n", size, dc->src, dc->dst); |
| 1051 | cris_cc_mask(dc, CC_MASK_NZVC); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1052 | insn_len += dec10_ind_alu(env, dc, CC_OP_ADD, size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1053 | break; |
| 1054 | case CRISV10_IND_SUB: |
| 1055 | LOG_DIS("sub size=%d op=%d %d\n", size, dc->src, dc->dst); |
| 1056 | cris_cc_mask(dc, CC_MASK_NZVC); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1057 | insn_len += dec10_ind_alu(env, dc, CC_OP_SUB, size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1058 | break; |
| 1059 | case CRISV10_IND_BOUND: |
| 1060 | LOG_DIS("bound size=%d op=%d %d\n", size, dc->src, dc->dst); |
| 1061 | cris_cc_mask(dc, CC_MASK_NZVC); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1062 | insn_len += dec10_ind_bound(env, dc, size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1063 | break; |
| 1064 | case CRISV10_IND_AND: |
| 1065 | LOG_DIS("and size=%d op=%d %d\n", size, dc->src, dc->dst); |
| 1066 | cris_cc_mask(dc, CC_MASK_NZVC); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1067 | insn_len += dec10_ind_alu(env, dc, CC_OP_AND, size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1068 | break; |
| 1069 | case CRISV10_IND_OR: |
| 1070 | LOG_DIS("or size=%d op=%d %d\n", size, dc->src, dc->dst); |
| 1071 | cris_cc_mask(dc, CC_MASK_NZVC); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1072 | insn_len += dec10_ind_alu(env, dc, CC_OP_OR, size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1073 | break; |
| 1074 | case CRISV10_IND_MOVX: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1075 | insn_len = dec10_alux_m(env, dc, CC_OP_MOVE); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1076 | break; |
| 1077 | case CRISV10_IND_ADDX: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1078 | insn_len = dec10_alux_m(env, dc, CC_OP_ADD); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1079 | break; |
| 1080 | case CRISV10_IND_SUBX: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1081 | insn_len = dec10_alux_m(env, dc, CC_OP_SUB); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1082 | break; |
| 1083 | case CRISV10_IND_CMPX: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1084 | insn_len = dec10_alux_m(env, dc, CC_OP_CMP); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1085 | break; |
| 1086 | case CRISV10_IND_MUL: |
| 1087 | /* This is a reg insn coded in the mem indir space. */ |
| 1088 | LOG_DIS("mul pc=%x opcode=%d\n", dc->pc, dc->opcode); |
| 1089 | cris_cc_mask(dc, CC_MASK_NZVC); |
| 1090 | dec10_reg_mul(dc, size, dc->ir & (1 << 10)); |
| 1091 | break; |
| 1092 | case CRISV10_IND_BDAP_M: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1093 | insn_len = dec10_bdap_m(env, dc, size); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1094 | break; |
| 1095 | default: |
| 1096 | LOG_DIS("pc=%x var-ind.%d %d r%d r%d\n", |
| 1097 | dc->pc, size, dc->opcode, dc->src, dc->dst); |
Andreas Färber | 0dd106c | 2013-09-03 18:42:27 +0200 | [diff] [blame] | 1098 | cpu_abort(CPU(dc->cpu), "Unhandled opcode"); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1099 | break; |
| 1100 | } |
| 1101 | return insn_len; |
| 1102 | } |
| 1103 | |
| 1104 | switch (dc->opcode) { |
| 1105 | case CRISV10_IND_MOVE_M_SPR: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1106 | insn_len = dec10_ind_move_m_pr(env, dc); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1107 | break; |
| 1108 | case CRISV10_IND_MOVE_SPR_M: |
| 1109 | insn_len = dec10_ind_move_pr_m(dc); |
| 1110 | break; |
| 1111 | case CRISV10_IND_JUMP_M: |
| 1112 | if (dc->src == 15) { |
Edgar E. Iglesias | 5cabc5c | 2011-01-10 23:24:36 +0100 | [diff] [blame] | 1113 | LOG_DIS("jump.%d %d r%d r%d direct\n", size, |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1114 | dc->opcode, dc->src, dc->dst); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1115 | imm = cpu_ldl_code(env, dc->pc + 2); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1116 | if (dc->mode == CRISV10_MODE_AUTOINC) |
| 1117 | insn_len += size; |
| 1118 | |
| 1119 | t_gen_mov_preg_TN(dc, dc->dst, tcg_const_tl(dc->pc + insn_len)); |
Edgar E. Iglesias | 5cabc5c | 2011-01-10 23:24:36 +0100 | [diff] [blame] | 1120 | dc->jmp_pc = imm; |
| 1121 | cris_prepare_jmp(dc, JMP_DIRECT); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1122 | dc->delayed_branch--; /* v10 has no dslot here. */ |
| 1123 | } else { |
| 1124 | if (dc->dst == 14) { |
| 1125 | LOG_DIS("break %d\n", dc->src); |
| 1126 | cris_evaluate_flags(dc); |
| 1127 | tcg_gen_movi_tl(env_pc, dc->pc + 2); |
Edgar E. Iglesias | f756c7a | 2011-07-05 12:56:41 +0200 | [diff] [blame] | 1128 | t_gen_mov_env_TN(trap_vector, tcg_const_tl(dc->src + 2)); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1129 | t_gen_raise_exception(EXCP_BREAK); |
| 1130 | dc->is_jmp = DISAS_UPDATE; |
| 1131 | return insn_len; |
| 1132 | } |
| 1133 | LOG_DIS("%d: jump.%d %d r%d r%d\n", __LINE__, size, |
| 1134 | dc->opcode, dc->src, dc->dst); |
| 1135 | t[0] = tcg_temp_new(); |
| 1136 | t_gen_mov_preg_TN(dc, dc->dst, tcg_const_tl(dc->pc + insn_len)); |
| 1137 | crisv10_prepare_memaddr(dc, t[0], size); |
| 1138 | gen_load(dc, env_btarget, t[0], 4, 0); |
| 1139 | insn_len += crisv10_post_memaddr(dc, size); |
| 1140 | cris_prepare_jmp(dc, JMP_INDIRECT); |
| 1141 | dc->delayed_branch--; /* v10 has no dslot here. */ |
| 1142 | tcg_temp_free(t[0]); |
| 1143 | } |
| 1144 | break; |
| 1145 | |
| 1146 | case CRISV10_IND_MOVEM_R_M: |
| 1147 | LOG_DIS("movem_r_m pc=%x opcode=%d r%d r%d\n", |
| 1148 | dc->pc, dc->opcode, dc->dst, dc->src); |
| 1149 | dec10_movem_r_m(dc); |
| 1150 | break; |
| 1151 | case CRISV10_IND_MOVEM_M_R: |
| 1152 | LOG_DIS("movem_m_r pc=%x opcode=%d\n", dc->pc, dc->opcode); |
| 1153 | dec10_movem_m_r(dc); |
| 1154 | break; |
| 1155 | case CRISV10_IND_JUMP_R: |
| 1156 | LOG_DIS("jmp pc=%x opcode=%d r%d r%d\n", |
| 1157 | dc->pc, dc->opcode, dc->dst, dc->src); |
| 1158 | tcg_gen_mov_tl(env_btarget, cpu_R[dc->src]); |
| 1159 | t_gen_mov_preg_TN(dc, dc->dst, tcg_const_tl(dc->pc + insn_len)); |
| 1160 | cris_prepare_jmp(dc, JMP_INDIRECT); |
| 1161 | dc->delayed_branch--; /* v10 has no dslot here. */ |
| 1162 | break; |
| 1163 | case CRISV10_IND_MOVX: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1164 | insn_len = dec10_alux_m(env, dc, CC_OP_MOVE); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1165 | break; |
| 1166 | case CRISV10_IND_ADDX: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1167 | insn_len = dec10_alux_m(env, dc, CC_OP_ADD); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1168 | break; |
| 1169 | case CRISV10_IND_SUBX: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1170 | insn_len = dec10_alux_m(env, dc, CC_OP_SUB); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1171 | break; |
| 1172 | case CRISV10_IND_CMPX: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1173 | insn_len = dec10_alux_m(env, dc, CC_OP_CMP); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1174 | break; |
| 1175 | case CRISV10_IND_DIP: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1176 | insn_len = dec10_dip(env, dc); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1177 | break; |
| 1178 | case CRISV10_IND_BCC_M: |
| 1179 | |
| 1180 | cris_cc_mask(dc, 0); |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1181 | imm = cpu_ldsw_code(env, dc->pc + 2); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1182 | simm = (int16_t)imm; |
| 1183 | simm += 4; |
| 1184 | |
| 1185 | LOG_DIS("bcc_m: b%s %x\n", cc_name(dc->cond), dc->pc + simm); |
| 1186 | cris_prepare_cc_branch(dc, simm, dc->cond); |
| 1187 | insn_len = 4; |
| 1188 | break; |
| 1189 | default: |
| 1190 | LOG_DIS("ERROR pc=%x opcode=%d\n", dc->pc, dc->opcode); |
Andreas Färber | 0dd106c | 2013-09-03 18:42:27 +0200 | [diff] [blame] | 1191 | cpu_abort(CPU(dc->cpu), "Unhandled opcode"); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1192 | break; |
| 1193 | } |
| 1194 | |
| 1195 | return insn_len; |
| 1196 | } |
| 1197 | |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1198 | static unsigned int crisv10_decoder(CPUCRISState *env, DisasContext *dc) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1199 | { |
| 1200 | unsigned int insn_len = 2; |
| 1201 | |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1202 | /* Load a halfword onto the instruction register. */ |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1203 | dc->ir = cpu_lduw_code(env, dc->pc); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1204 | |
| 1205 | /* Now decode it. */ |
| 1206 | dc->opcode = EXTRACT_FIELD(dc->ir, 6, 9); |
| 1207 | dc->mode = EXTRACT_FIELD(dc->ir, 10, 11); |
| 1208 | dc->src = EXTRACT_FIELD(dc->ir, 0, 3); |
| 1209 | dc->size = EXTRACT_FIELD(dc->ir, 4, 5); |
| 1210 | dc->cond = dc->dst = EXTRACT_FIELD(dc->ir, 12, 15); |
| 1211 | dc->postinc = EXTRACT_FIELD(dc->ir, 10, 10); |
| 1212 | |
| 1213 | dc->clear_prefix = 1; |
| 1214 | |
| 1215 | /* FIXME: What if this insn insn't 2 in length?? */ |
| 1216 | if (dc->src == 15 || dc->dst == 15) |
| 1217 | tcg_gen_movi_tl(cpu_R[15], dc->pc + 2); |
| 1218 | |
| 1219 | switch (dc->mode) { |
| 1220 | case CRISV10_MODE_QIMMEDIATE: |
| 1221 | insn_len = dec10_quick_imm(dc); |
| 1222 | break; |
| 1223 | case CRISV10_MODE_REG: |
| 1224 | insn_len = dec10_reg(dc); |
| 1225 | break; |
| 1226 | case CRISV10_MODE_AUTOINC: |
| 1227 | case CRISV10_MODE_INDIRECT: |
Aurelien Jarno | cf7e0c8 | 2012-09-07 16:13:27 +0200 | [diff] [blame] | 1228 | insn_len = dec10_ind(env, dc); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1229 | break; |
| 1230 | } |
| 1231 | |
| 1232 | if (dc->clear_prefix && dc->tb_flags & PFIX_FLAG) { |
| 1233 | dc->tb_flags &= ~PFIX_FLAG; |
| 1234 | tcg_gen_andi_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], ~PFIX_FLAG); |
Edgar E. Iglesias | 5cabc5c | 2011-01-10 23:24:36 +0100 | [diff] [blame] | 1235 | if (dc->tb_flags != dc->tb->flags) { |
| 1236 | dc->cpustate_changed = 1; |
| 1237 | } |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1238 | } |
| 1239 | |
Edgar E. Iglesias | 4ffb9ae | 2010-02-20 19:17:29 +0100 | [diff] [blame] | 1240 | /* CRISv10 locks out interrupts on dslots. */ |
| 1241 | if (dc->delayed_branch == 2) { |
| 1242 | cris_lock_irq(dc); |
| 1243 | } |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1244 | return insn_len; |
| 1245 | } |
| 1246 | |
Andreas Färber | d1a94fe | 2013-01-19 23:55:42 +0100 | [diff] [blame] | 1247 | void cris_initialize_crisv10_tcg(void) |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1248 | { |
| 1249 | int i; |
| 1250 | |
| 1251 | cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); |
| 1252 | cc_x = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1253 | offsetof(CPUCRISState, cc_x), "cc_x"); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1254 | cc_src = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1255 | offsetof(CPUCRISState, cc_src), "cc_src"); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1256 | cc_dest = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1257 | offsetof(CPUCRISState, cc_dest), |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1258 | "cc_dest"); |
| 1259 | cc_result = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1260 | offsetof(CPUCRISState, cc_result), |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1261 | "cc_result"); |
| 1262 | cc_op = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1263 | offsetof(CPUCRISState, cc_op), "cc_op"); |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1264 | cc_size = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1265 | offsetof(CPUCRISState, cc_size), |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1266 | "cc_size"); |
| 1267 | cc_mask = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1268 | offsetof(CPUCRISState, cc_mask), |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1269 | "cc_mask"); |
| 1270 | |
| 1271 | env_pc = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1272 | offsetof(CPUCRISState, pc), |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1273 | "pc"); |
| 1274 | env_btarget = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1275 | offsetof(CPUCRISState, btarget), |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1276 | "btarget"); |
| 1277 | env_btaken = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1278 | offsetof(CPUCRISState, btaken), |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1279 | "btaken"); |
| 1280 | for (i = 0; i < 16; i++) { |
| 1281 | cpu_R[i] = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1282 | offsetof(CPUCRISState, regs[i]), |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1283 | regnames_v10[i]); |
| 1284 | } |
| 1285 | for (i = 0; i < 16; i++) { |
| 1286 | cpu_PR[i] = tcg_global_mem_new(TCG_AREG0, |
Andreas Färber | a1170bf | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 1287 | offsetof(CPUCRISState, pregs[i]), |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1288 | pregnames_v10[i]); |
| 1289 | } |
Edgar E. Iglesias | 40e9edd | 2010-02-15 12:18:57 +0100 | [diff] [blame] | 1290 | } |