File: | target-cris/translate_v10.c |
Location: | line 836, column 5 |
Description: | Value stored to 't0' is never read |
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 |
18 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
19 | */ |
20 | |
21 | #include "crisv10-decode.h" |
22 | |
23 | static const char *regnames_v10[] = |
24 | { |
25 | "$r0", "$r1", "$r2", "$r3", |
26 | "$r4", "$r5", "$r6", "$r7", |
27 | "$r8", "$r9", "$r10", "$r11", |
28 | "$r12", "$r13", "$sp", "$pc", |
29 | }; |
30 | |
31 | static const char *pregnames_v10[] = |
32 | { |
33 | "$bz", "$vr", "$p2", "$p3", |
34 | "$wz", "$ccr", "$p6-prefix", "$mof", |
35 | "$dz", "$ibr", "$irp", "$srp", |
36 | "$bar", "$dccr", "$brp", "$usp", |
37 | }; |
38 | |
39 | /* We need this table to handle preg-moves with implicit width. */ |
40 | static int preg_sizes_v10[] = { |
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, |
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_BREAK5); |
63 | } |
64 | |
65 | static void gen_store_v10_conditional(DisasContext *dc, TCGvTCGv_i32 addr, TCGvTCGv_i32 val, |
66 | unsigned int size, int mem_index) |
67 | { |
68 | int l1 = gen_new_label(); |
69 | TCGvTCGv_i32 taddr = tcg_temp_local_new()tcg_temp_local_new_i32(); |
70 | TCGvTCGv_i32 tval = tcg_temp_local_new()tcg_temp_local_new_i32(); |
71 | TCGvTCGv_i32 t1 = tcg_temp_local_new()tcg_temp_local_new_i32(); |
72 | dc->postinc = 0; |
73 | cris_evaluate_flags(dc); |
74 | |
75 | tcg_gen_mov_tltcg_gen_mov_i32(taddr, addr); |
76 | tcg_gen_mov_tltcg_gen_mov_i32(tval, val); |
77 | |
78 | /* Store only if F flag isn't set */ |
79 | tcg_gen_andi_tltcg_gen_andi_i32(t1, cpu_PR[PR_CCS13], F_FLAG_V100x400); |
80 | tcg_gen_brcondi_tltcg_gen_brcondi_i32(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_tltcg_gen_shri_i32(t1, t1, 1); /* shift F to P position */ |
90 | tcg_gen_or_tltcg_gen_or_i32(cpu_PR[PR_CCS13], cpu_PR[PR_CCS13], t1); /*P=F*/ |
91 | tcg_temp_freetcg_temp_free_i32(t1); |
92 | tcg_temp_freetcg_temp_free_i32(tval); |
93 | tcg_temp_freetcg_temp_free_i32(taddr); |
94 | } |
95 | |
96 | static void gen_store_v10(DisasContext *dc, TCGvTCGv_i32 addr, TCGvTCGv_i32 val, |
97 | unsigned int size) |
98 | { |
99 | int mem_index = cpu_mmu_index(dc->env); |
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 | |
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_FLAG0x800; |
130 | tcg_gen_ori_tltcg_gen_ori_i32(cpu_PR[PR_CCS13], cpu_PR[PR_CCS13], PFIX_FLAG0x800); |
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 | TCGvTCGv_i32 addr, unsigned int size) |
139 | { |
140 | if (dc->tb_flags & PFIX_FLAG0x800) { |
141 | tcg_gen_mov_tltcg_gen_mov_i32(addr, cpu_PR[PR_PREFIX6]); |
142 | } else { |
143 | tcg_gen_mov_tltcg_gen_mov_i32(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_FLAG0x800) { |
152 | if (dc->mode == CRISV10_MODE_AUTOINC3) { |
153 | tcg_gen_mov_tltcg_gen_mov_i32(cpu_R[dc->src], cpu_PR[PR_PREFIX6]); |
154 | } |
155 | } else { |
156 | if (dc->mode == CRISV10_MODE_AUTOINC3) { |
157 | if (dc->src == 15) { |
158 | insn_len += size & ~1; |
159 | } else { |
160 | tcg_gen_addi_tltcg_gen_addi_i32(cpu_R[dc->src], cpu_R[dc->src], size); |
161 | } |
162 | } |
163 | } |
164 | return insn_len; |
165 | } |
166 | |
167 | static int dec10_prep_move_m(CPUCRISState *env, DisasContext *dc, |
168 | int s_ext, int memsize, TCGvTCGv_i32 dst) |
169 | { |
170 | unsigned int rs; |
171 | uint32_t imm; |
172 | int is_imm; |
173 | int insn_len = 0; |
174 | |
175 | rs = dc->src; |
176 | is_imm = rs == 15 && !(dc->tb_flags & PFIX_FLAG0x800); |
177 | LOG_DIS("rs=%d rd=%d is_imm=%d mode=%d pfix=%d\n",do { } while (0) |
178 | rs, dc->dst, is_imm, dc->mode, dc->tb_flags & PFIX_FLAG)do { } while (0); |
179 | |
180 | /* Load [$rs] onto T1. */ |
181 | if (is_imm) { |
182 | if (memsize != 4) { |
183 | if (s_ext) { |
184 | if (memsize == 1) |
185 | imm = cpu_ldsb_code(env, dc->pc + 2)ldsb_p(((void *)((unsigned long)(target_ulong)((dc->pc + 2 )) + guest_base))); |
186 | else |
187 | imm = cpu_ldsw_code(env, dc->pc + 2)ldsw_le_p(((void *)((unsigned long)(target_ulong)((dc->pc + 2)) + guest_base))); |
188 | } else { |
189 | if (memsize == 1) |
190 | imm = cpu_ldub_code(env, dc->pc + 2)ldub_p(((void *)((unsigned long)(target_ulong)((dc->pc + 2 )) + guest_base))); |
191 | else |
192 | imm = cpu_lduw_code(env, dc->pc + 2)lduw_le_p(((void *)((unsigned long)(target_ulong)((dc->pc + 2)) + guest_base))); |
193 | } |
194 | } else |
195 | imm = cpu_ldl_code(env, dc->pc + 2)ldl_le_p(((void *)((unsigned long)(target_ulong)((dc->pc + 2)) + guest_base))); |
196 | |
197 | tcg_gen_movi_tltcg_gen_movi_i32(dst, imm); |
198 | |
199 | if (dc->mode == CRISV10_MODE_AUTOINC3) { |
200 | insn_len += memsize; |
201 | if (memsize == 1) |
202 | insn_len++; |
203 | tcg_gen_addi_tltcg_gen_addi_i32(cpu_R[15], cpu_R[15], insn_len); |
204 | } |
205 | } else { |
206 | TCGvTCGv_i32 addr; |
207 | |
208 | addr = tcg_temp_new()tcg_temp_new_i32(); |
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_freetcg_temp_free_i32(addr); |
218 | } |
219 | |
220 | if (dc->mode == CRISV10_MODE_INDIRECT2 && (dc->tb_flags & PFIX_FLAG0x800)) { |
221 | dc->dst = dc->src; |
222 | } |
223 | return insn_len; |
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_R04: |
237 | case CRISV10_QIMM_BDAP_R15: |
238 | case CRISV10_QIMM_BDAP_R26: |
239 | case CRISV10_QIMM_BDAP_R37: |
240 | simm = (int8_t)dc->ir; |
241 | LOG_DIS("bdap %d $r%d\n", simm, dc->dst)do { } while (0); |
242 | LOG_DIS("pc=%x mode=%x quickimm %d r%d r%d\n",do { } while (0) |
243 | dc->pc, dc->mode, dc->opcode, dc->src, dc->dst)do { } while (0); |
244 | cris_set_prefix(dc); |
245 | if (dc->dst == 15) { |
246 | tcg_gen_movi_tltcg_gen_movi_i32(cpu_PR[PR_PREFIX6], dc->pc + 2 + simm); |
247 | } else { |
248 | tcg_gen_addi_tltcg_gen_addi_i32(cpu_PR[PR_PREFIX6], cpu_R[dc->dst], simm); |
249 | } |
250 | break; |
251 | |
252 | case CRISV10_QIMM_MOVEQ9: |
253 | LOG_DIS("moveq %d, $r%d\n", simm, dc->dst)do { } while (0); |
254 | |
255 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
256 | cris_alu(dc, CC_OP_MOVE, cpu_R[dc->dst], |
257 | cpu_R[dc->dst], tcg_const_tltcg_const_i32(simm), 4); |
258 | break; |
259 | case CRISV10_QIMM_CMPQ11: |
260 | LOG_DIS("cmpq %d, $r%d\n", simm, dc->dst)do { } while (0); |
261 | |
262 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
263 | cris_alu(dc, CC_OP_CMP, cpu_R[dc->dst], |
264 | cpu_R[dc->dst], tcg_const_tltcg_const_i32(simm), 4); |
265 | break; |
266 | case CRISV10_QIMM_ADDQ8: |
267 | LOG_DIS("addq %d, $r%d\n", imm, dc->dst)do { } while (0); |
268 | |
269 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
270 | cris_alu(dc, CC_OP_ADD, cpu_R[dc->dst], |
271 | cpu_R[dc->dst], tcg_const_tltcg_const_i32(imm), 4); |
272 | break; |
273 | case CRISV10_QIMM_ANDQ12: |
274 | LOG_DIS("andq %d, $r%d\n", simm, dc->dst)do { } while (0); |
275 | |
276 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
277 | cris_alu(dc, CC_OP_AND, cpu_R[dc->dst], |
278 | cpu_R[dc->dst], tcg_const_tltcg_const_i32(simm), 4); |
279 | break; |
280 | case CRISV10_QIMM_ASHQ14: |
281 | LOG_DIS("ashq %d, $r%d\n", simm, dc->dst)do { } while (0); |
282 | |
283 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
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_tltcg_const_i32(imm), 4); |
289 | } else { |
290 | /* BTST */ |
291 | cris_update_cc_op(dc, CC_OP_FLAGS, 4); |
292 | gen_helper_btst(cpu_PR[PR_CCS13], cpu_env, cpu_R[dc->dst], |
293 | tcg_const_tltcg_const_i32(imm), cpu_PR[PR_CCS13]); |
294 | } |
295 | break; |
296 | case CRISV10_QIMM_LSHQ15: |
297 | LOG_DIS("lshq %d, $r%d\n", simm, dc->dst)do { } while (0); |
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_NZVC0xf); |
305 | cris_alu(dc, op, cpu_R[dc->dst], |
306 | cpu_R[dc->dst], tcg_const_tltcg_const_i32(imm), 4); |
307 | break; |
308 | case CRISV10_QIMM_SUBQ10: |
309 | LOG_DIS("subq %d, $r%d\n", imm, dc->dst)do { } while (0); |
310 | |
311 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
312 | cris_alu(dc, CC_OP_SUB, cpu_R[dc->dst], |
313 | cpu_R[dc->dst], tcg_const_tltcg_const_i32(imm), 4); |
314 | break; |
315 | case CRISV10_QIMM_ORQ13: |
316 | LOG_DIS("andq %d, $r%d\n", simm, dc->dst)do { } while (0); |
317 | |
318 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
319 | cris_alu(dc, CC_OP_OR, cpu_R[dc->dst], |
320 | cpu_R[dc->dst], tcg_const_tltcg_const_i32(simm), 4); |
321 | break; |
322 | |
323 | case CRISV10_QIMM_BCC_R00: |
324 | case CRISV10_QIMM_BCC_R11: |
325 | case CRISV10_QIMM_BCC_R22: |
326 | case CRISV10_QIMM_BCC_R33: |
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)do { } while (0); |
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",do { } while (0) |
342 | dc->pc, dc->mode, dc->opcode, dc->src, dc->dst)do { } while (0); |
343 | cpu_abort(dc->env, "Unhandled quickimm\n"); |
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)(((dc->ir) >> 0) & ((1 << (3 - 0 + 1)) - 1 )) |
355 | | (EXTRACT_FIELD(dc->ir, 12, 15)(((dc->ir) >> 12) & ((1 << (15 - 12 + 1)) - 1)) << 4); |
356 | LOG_DIS("%s set=%d flags=%x\n", __func__, set, flags)do { } while (0); |
357 | |
358 | |
359 | if (flags & X_FLAG0x10) { |
360 | dc->flagx_known = 1; |
361 | if (set) |
362 | dc->flags_x = X_FLAG0x10; |
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_tltcg_gen_movi_i32(cc_op, dc->cc_op); |
371 | |
372 | if (set) { |
373 | tcg_gen_ori_tltcg_gen_ori_i32(cpu_PR[PR_CCS13], cpu_PR[PR_CCS13], flags); |
374 | } else { |
375 | tcg_gen_andi_tltcg_gen_andi_i32(cpu_PR[PR_CCS13], cpu_PR[PR_CCS13], |
376 | ~(flags|F_FLAG_V100x400|P_FLAG_V100x200)); |
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 | TCGvTCGv_i32 dd, TCGvTCGv_i32 ds, TCGvTCGv_i32 sd, TCGvTCGv_i32 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 | TCGvTCGv_i32 t[2]; |
400 | |
401 | t[0] = tcg_temp_new()tcg_temp_new_i32(); |
402 | t[1] = tcg_temp_new()tcg_temp_new_i32(); |
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_tltcg_gen_andi_i32(t[1], t[1], 63); |
408 | } |
409 | |
410 | assert(dc->dst != 15)((dc->dst != 15) ? (void) (0) : __assert_fail ("dc->dst != 15" , "/home/stefan/src/qemu/qemu.org/qemu/target-cris/translate_v10.c" , 410, __PRETTY_FUNCTION__)); |
411 | cris_alu(dc, op, cpu_R[dc->dst], t[0], t[1], size); |
412 | tcg_temp_freetcg_temp_free_i32(t[0]); |
413 | tcg_temp_freetcg_temp_free_i32(t[1]); |
414 | } |
415 | |
416 | static void dec10_reg_bound(DisasContext *dc, int size) |
417 | { |
418 | TCGvTCGv_i32 t; |
419 | |
420 | t = tcg_temp_local_new()tcg_temp_local_new_i32(); |
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_freetcg_temp_free_i32(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 | TCGvTCGv_i32 t[2]; |
430 | |
431 | t[0] = tcg_temp_new()tcg_temp_new_i32(); |
432 | t[1] = tcg_temp_new()tcg_temp_new_i32(); |
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_freetcg_temp_free_i32(t[0]); |
439 | tcg_temp_freetcg_temp_free_i32(t[1]); |
440 | } |
441 | |
442 | |
443 | static void dec10_reg_movs(DisasContext *dc) |
444 | { |
445 | int size = (dc->size & 1) + 1; |
446 | TCGvTCGv_i32 t; |
447 | |
448 | LOG_DIS("movx.%d $r%d, $r%d\n", size, dc->src, dc->dst)do { } while (0); |
449 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
450 | |
451 | t = tcg_temp_new()tcg_temp_new_i32(); |
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_freetcg_temp_free_i32(t); |
459 | } |
460 | |
461 | static void dec10_reg_alux(DisasContext *dc, int op) |
462 | { |
463 | int size = (dc->size & 1) + 1; |
464 | TCGvTCGv_i32 t; |
465 | |
466 | LOG_DIS("movx.%d $r%d, $r%d\n", size, dc->src, dc->dst)do { } while (0); |
467 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
468 | |
469 | t = tcg_temp_new()tcg_temp_new_i32(); |
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_freetcg_temp_free_i32(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])do { } while (0); |
482 | cris_lock_irq(dc); |
483 | if (dc->src == 15) { |
484 | tcg_gen_mov_tltcg_gen_mov_i32(env_btarget, cpu_PR[dc->dst]); |
485 | cris_prepare_jmp(dc, JMP_INDIRECT3); |
486 | return; |
487 | } |
488 | if (dc->dst == PR_CCS13) { |
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 | { |
497 | TCGvTCGv_i32 t0; |
498 | |
499 | LOG_DIS("abs $r%u, $r%u\n", dc->src, dc->dst)do { } while (0); |
500 | |
501 | assert(dc->dst != 15)((dc->dst != 15) ? (void) (0) : __assert_fail ("dc->dst != 15" , "/home/stefan/src/qemu/qemu.org/qemu/target-cris/translate_v10.c" , 501, __PRETTY_FUNCTION__)); |
502 | t0 = tcg_temp_new()tcg_temp_new_i32(); |
503 | tcg_gen_sari_tltcg_gen_sari_i32(t0, cpu_R[dc->src], 31); |
504 | tcg_gen_xor_tltcg_gen_xor_i32(cpu_R[dc->dst], cpu_R[dc->src], t0); |
505 | tcg_gen_sub_tltcg_gen_sub_i32(t0, cpu_R[dc->dst], t0); |
506 | |
507 | cris_alu(dc, CC_OP_MOVE, cpu_R[dc->dst], cpu_R[dc->dst], t0, 4); |
508 | tcg_temp_freetcg_temp_free_i32(t0); |
509 | } |
510 | |
511 | static void dec10_reg_swap(DisasContext *dc) |
512 | { |
513 | TCGvTCGv_i32 t0; |
514 | |
515 | LOG_DIS("not $r%d, $r%d\n", dc->src, dc->dst)do { } while (0); |
516 | |
517 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
518 | t0 = tcg_temp_new()tcg_temp_new_i32(); |
519 | t_gen_mov_TN_reg(t0, dc->src); |
520 | if (dc->dst & 8) |
521 | tcg_gen_not_tltcg_gen_not_i32(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_freetcg_temp_free_i32(t0); |
530 | } |
531 | |
532 | static void dec10_reg_scc(DisasContext *dc) |
533 | { |
534 | int cond = dc->dst; |
535 | |
536 | LOG_DIS("s%s $r%u\n", cc_name(cond), dc->src)do { } while (0); |
537 | |
538 | if (cond != CC_A14) |
539 | { |
540 | int l1; |
541 | |
542 | gen_tst_cc (dc, cpu_R[dc->src], cond); |
543 | l1 = gen_new_label(); |
544 | tcg_gen_brcondi_tltcg_gen_brcondi_i32(TCG_COND_EQ, cpu_R[dc->src], 0, l1); |
545 | tcg_gen_movi_tltcg_gen_movi_i32(cpu_R[dc->src], 1); |
546 | gen_set_label(l1); |
547 | } else { |
548 | tcg_gen_movi_tltcg_gen_movi_i32(cpu_R[dc->src], 1); |
549 | } |
550 | |
551 | cris_cc_mask(dc, 0); |
552 | } |
553 | |
554 | static unsigned int dec10_reg(DisasContext *dc) |
555 | { |
556 | TCGvTCGv_i32 t; |
557 | unsigned int insn_len = 2; |
558 | unsigned int size = dec10_size(dc->size); |
559 | unsigned int tmp; |
560 | |
561 | if (dc->size != 3) { |
562 | switch (dc->opcode) { |
563 | case CRISV10_REG_MOVE_R9: |
564 | LOG_DIS("move.%d $r%d, $r%d\n", dc->size, dc->src, dc->dst)do { } while (0); |
565 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
566 | dec10_reg_alu(dc, CC_OP_MOVE, size, 0); |
567 | if (dc->dst == 15) { |
568 | tcg_gen_mov_tltcg_gen_mov_i32(env_btarget, cpu_R[dc->dst]); |
569 | cris_prepare_jmp(dc, JMP_INDIRECT3); |
570 | dc->delayed_branch = 1; |
571 | } |
572 | break; |
573 | case CRISV10_REG_MOVX1: |
574 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
575 | dec10_reg_movs(dc); |
576 | break; |
577 | case CRISV10_REG_ADDX0: |
578 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
579 | dec10_reg_alux(dc, CC_OP_ADD); |
580 | break; |
581 | case CRISV10_REG_SUBX2: |
582 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
583 | dec10_reg_alux(dc, CC_OP_SUB); |
584 | break; |
585 | case CRISV10_REG_ADD8: |
586 | LOG_DIS("add $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
587 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
588 | dec10_reg_alu(dc, CC_OP_ADD, size, 0); |
589 | break; |
590 | case CRISV10_REG_SUB10: |
591 | LOG_DIS("sub $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
592 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
593 | dec10_reg_alu(dc, CC_OP_SUB, size, 0); |
594 | break; |
595 | case CRISV10_REG_CMP11: |
596 | LOG_DIS("cmp $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
597 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
598 | dec10_reg_alu(dc, CC_OP_CMP, size, 0); |
599 | break; |
600 | case CRISV10_REG_BOUND7: |
601 | LOG_DIS("bound $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
602 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
603 | dec10_reg_bound(dc, size); |
604 | break; |
605 | case CRISV10_REG_AND12: |
606 | LOG_DIS("and $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
607 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
608 | dec10_reg_alu(dc, CC_OP_AND, size, 0); |
609 | break; |
610 | case CRISV10_REG_ADDI4: |
611 | if (dc->src == 15) { |
612 | /* nop. */ |
613 | return 2; |
614 | } |
615 | t = tcg_temp_new()tcg_temp_new_i32(); |
616 | LOG_DIS("addi r%d r%d size=%d\n", dc->src, dc->dst, dc->size)do { } while (0); |
617 | tcg_gen_shli_tltcg_gen_shli_i32(t, cpu_R[dc->dst], dc->size & 3); |
618 | tcg_gen_add_tltcg_gen_add_i32(cpu_R[dc->src], cpu_R[dc->src], t); |
619 | tcg_temp_freetcg_temp_free_i32(t); |
620 | break; |
621 | case CRISV10_REG_LSL3: |
622 | LOG_DIS("lsl $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
623 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
624 | dec10_reg_alu(dc, CC_OP_LSL, size, 0); |
625 | break; |
626 | case CRISV10_REG_LSR15: |
627 | LOG_DIS("lsr $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
628 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
629 | dec10_reg_alu(dc, CC_OP_LSR, size, 0); |
630 | break; |
631 | case CRISV10_REG_ASR14: |
632 | LOG_DIS("asr $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
633 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
634 | dec10_reg_alu(dc, CC_OP_ASR, size, 1); |
635 | break; |
636 | case CRISV10_REG_OR13: |
637 | LOG_DIS("or $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
638 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
639 | dec10_reg_alu(dc, CC_OP_OR, size, 0); |
640 | break; |
641 | case CRISV10_REG_NEG6: |
642 | LOG_DIS("neg $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
643 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
644 | dec10_reg_alu(dc, CC_OP_NEG, size, 0); |
645 | break; |
646 | case CRISV10_REG_BIAP5: |
647 | LOG_DIS("BIAP pc=%x reg %d r%d r%d size=%d\n", dc->pc,do { } while (0) |
648 | dc->opcode, dc->src, dc->dst, size)do { } while (0); |
649 | switch (size) { |
650 | case 4: tmp = 2; break; |
651 | case 2: tmp = 1; break; |
652 | case 1: tmp = 0; break; |
653 | default: |
654 | cpu_abort(dc->env, "Unhandled BIAP"); |
655 | break; |
656 | } |
657 | |
658 | t = tcg_temp_new()tcg_temp_new_i32(); |
659 | tcg_gen_shli_tltcg_gen_shli_i32(t, cpu_R[dc->dst], tmp); |
660 | if (dc->src == 15) { |
661 | tcg_gen_addi_tltcg_gen_addi_i32(cpu_PR[PR_PREFIX6], t, ((dc->pc +2)| 1) + 1); |
662 | } else { |
663 | tcg_gen_add_tltcg_gen_add_i32(cpu_PR[PR_PREFIX6], cpu_R[dc->src], t); |
664 | } |
665 | tcg_temp_freetcg_temp_free_i32(t); |
666 | cris_set_prefix(dc); |
667 | break; |
668 | |
669 | default: |
670 | LOG_DIS("pc=%x reg %d r%d r%d\n", dc->pc,do { } while (0) |
671 | dc->opcode, dc->src, dc->dst)do { } while (0); |
672 | cpu_abort(dc->env, "Unhandled opcode"); |
673 | break; |
674 | } |
675 | } else { |
676 | switch (dc->opcode) { |
677 | case CRISV10_REG_MOVX1: |
678 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
679 | dec10_reg_movs(dc); |
680 | break; |
681 | case CRISV10_REG_ADDX0: |
682 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
683 | dec10_reg_alux(dc, CC_OP_ADD); |
684 | break; |
685 | case CRISV10_REG_SUBX2: |
686 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
687 | dec10_reg_alux(dc, CC_OP_SUB); |
688 | break; |
689 | case CRISV10_REG_MOVE_SPR_R9: |
690 | cris_evaluate_flags(dc); |
691 | cris_cc_mask(dc, 0); |
692 | dec10_reg_mov_pr(dc); |
693 | break; |
694 | case CRISV10_REG_MOVE_R_SPR8: |
695 | LOG_DIS("move r%d p%d\n", dc->src, dc->dst)do { } while (0); |
696 | cris_evaluate_flags(dc); |
697 | if (dc->src != 11) /* fast for srp. */ |
698 | dc->cpustate_changed = 1; |
699 | t_gen_mov_preg_TN(dc, dc->dst, cpu_R[dc->src]); |
700 | break; |
701 | case CRISV10_REG_SETF6: |
702 | case CRISV10_REG_CLEARF7: |
703 | dec10_setclrf(dc); |
704 | break; |
705 | case CRISV10_REG_SWAP13: |
706 | dec10_reg_swap(dc); |
707 | break; |
708 | case CRISV10_REG_ABS10: |
709 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
710 | dec10_reg_abs(dc); |
711 | break; |
712 | case CRISV10_REG_LZ12: |
713 | LOG_DIS("lz $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
714 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
715 | dec10_reg_alu(dc, CC_OP_LZ, 4, 0); |
716 | break; |
717 | case CRISV10_REG_XOR14: |
718 | LOG_DIS("xor $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
719 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
720 | dec10_reg_alu(dc, CC_OP_XOR, 4, 0); |
721 | break; |
722 | case CRISV10_REG_BTST3: |
723 | LOG_DIS("btst $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
724 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
725 | cris_update_cc_op(dc, CC_OP_FLAGS, 4); |
726 | gen_helper_btst(cpu_PR[PR_CCS13], cpu_env, cpu_R[dc->dst], |
727 | cpu_R[dc->src], cpu_PR[PR_CCS13]); |
728 | break; |
729 | case CRISV10_REG_DSTEP11: |
730 | LOG_DIS("dstep $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
731 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
732 | cris_alu(dc, CC_OP_DSTEP, cpu_R[dc->dst], |
733 | cpu_R[dc->dst], cpu_R[dc->src], 4); |
734 | break; |
735 | case CRISV10_REG_MSTEP15: |
736 | LOG_DIS("mstep $r%d, $r%d sz=%d\n", dc->src, dc->dst, size)do { } while (0); |
737 | cris_evaluate_flags(dc); |
738 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
739 | cris_alu(dc, CC_OP_MSTEP, cpu_R[dc->dst], |
740 | cpu_R[dc->dst], cpu_R[dc->src], 4); |
741 | break; |
742 | case CRISV10_REG_SCC4: |
743 | dec10_reg_scc(dc); |
744 | break; |
745 | default: |
746 | LOG_DIS("pc=%x reg %d r%d r%d\n", dc->pc,do { } while (0) |
747 | dc->opcode, dc->src, dc->dst)do { } while (0); |
748 | cpu_abort(dc->env, "Unhandled opcode"); |
749 | break; |
750 | } |
751 | } |
752 | return insn_len; |
753 | } |
754 | |
755 | static unsigned int dec10_ind_move_m_r(CPUCRISState *env, DisasContext *dc, |
756 | unsigned int size) |
757 | { |
758 | unsigned int insn_len = 2; |
759 | TCGvTCGv_i32 t; |
760 | |
761 | LOG_DIS("%s: move.%d [$r%d], $r%d\n", __func__,do { } while (0) |
762 | size, dc->src, dc->dst)do { } while (0); |
763 | |
764 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
765 | t = tcg_temp_new()tcg_temp_new_i32(); |
766 | insn_len += dec10_prep_move_m(env, dc, 0, size, t); |
767 | cris_alu(dc, CC_OP_MOVE, cpu_R[dc->dst], cpu_R[dc->dst], t, size); |
768 | if (dc->dst == 15) { |
769 | tcg_gen_mov_tltcg_gen_mov_i32(env_btarget, cpu_R[dc->dst]); |
770 | cris_prepare_jmp(dc, JMP_INDIRECT3); |
771 | dc->delayed_branch = 1; |
772 | return insn_len; |
773 | } |
774 | |
775 | tcg_temp_freetcg_temp_free_i32(t); |
776 | return insn_len; |
777 | } |
778 | |
779 | static unsigned int dec10_ind_move_r_m(DisasContext *dc, unsigned int size) |
780 | { |
781 | unsigned int insn_len = 2; |
782 | TCGvTCGv_i32 addr; |
783 | |
784 | LOG_DIS("move.%d $r%d, [$r%d]\n", dc->size, dc->src, dc->dst)do { } while (0); |
785 | addr = tcg_temp_new()tcg_temp_new_i32(); |
786 | crisv10_prepare_memaddr(dc, addr, size); |
787 | gen_store_v10(dc, addr, cpu_R[dc->dst], size); |
788 | insn_len += crisv10_post_memaddr(dc, size); |
789 | |
790 | return insn_len; |
791 | } |
792 | |
793 | static unsigned int dec10_ind_move_m_pr(CPUCRISState *env, DisasContext *dc) |
794 | { |
795 | unsigned int insn_len = 2, rd = dc->dst; |
796 | TCGvTCGv_i32 t, addr; |
797 | |
798 | LOG_DIS("move.%d $p%d, [$r%d]\n", dc->size, dc->dst, dc->src)do { } while (0); |
799 | cris_lock_irq(dc); |
800 | |
801 | addr = tcg_temp_new()tcg_temp_new_i32(); |
802 | t = tcg_temp_new()tcg_temp_new_i32(); |
803 | insn_len += dec10_prep_move_m(env, dc, 0, 4, t); |
804 | if (rd == 15) { |
805 | tcg_gen_mov_tltcg_gen_mov_i32(env_btarget, t); |
806 | cris_prepare_jmp(dc, JMP_INDIRECT3); |
807 | dc->delayed_branch = 1; |
808 | return insn_len; |
809 | } |
810 | |
811 | tcg_gen_mov_tltcg_gen_mov_i32(cpu_PR[rd], t); |
812 | dc->cpustate_changed = 1; |
813 | tcg_temp_freetcg_temp_free_i32(addr); |
814 | tcg_temp_freetcg_temp_free_i32(t); |
815 | return insn_len; |
816 | } |
817 | |
818 | static unsigned int dec10_ind_move_pr_m(DisasContext *dc) |
819 | { |
820 | unsigned int insn_len = 2, size = preg_sizes_v10[dc->dst]; |
821 | TCGvTCGv_i32 addr, t0; |
822 | |
823 | LOG_DIS("move.%d $p%d, [$r%d]\n", dc->size, dc->dst, dc->src)do { } while (0); |
824 | |
825 | addr = tcg_temp_new()tcg_temp_new_i32(); |
826 | crisv10_prepare_memaddr(dc, addr, size); |
827 | if (dc->dst == PR_CCS13) { |
828 | t0 = tcg_temp_new()tcg_temp_new_i32(); |
829 | cris_evaluate_flags(dc); |
830 | tcg_gen_andi_tltcg_gen_andi_i32(t0, cpu_PR[PR_CCS13], ~PFIX_FLAG0x800); |
831 | gen_store_v10(dc, addr, t0, size); |
832 | tcg_temp_freetcg_temp_free_i32(t0); |
833 | } else { |
834 | gen_store_v10(dc, addr, cpu_PR[dc->dst], size); |
835 | } |
836 | t0 = tcg_temp_new()tcg_temp_new_i32(); |
Value stored to 't0' is never read | |
837 | insn_len += crisv10_post_memaddr(dc, size); |
838 | cris_lock_irq(dc); |
839 | |
840 | return insn_len; |
841 | } |
842 | |
843 | static void dec10_movem_r_m(DisasContext *dc) |
844 | { |
845 | int i, pfix = dc->tb_flags & PFIX_FLAG0x800; |
846 | TCGvTCGv_i32 addr, t0; |
847 | |
848 | LOG_DIS("%s r%d, [r%d] pi=%d ir=%x\n", __func__,do { } while (0) |
849 | dc->dst, dc->src, dc->postinc, dc->ir)do { } while (0); |
850 | |
851 | addr = tcg_temp_new()tcg_temp_new_i32(); |
852 | t0 = tcg_temp_new()tcg_temp_new_i32(); |
853 | crisv10_prepare_memaddr(dc, addr, 4); |
854 | tcg_gen_mov_tltcg_gen_mov_i32(t0, addr); |
855 | for (i = dc->dst; i >= 0; i--) { |
856 | if ((pfix && dc->mode == CRISV10_MODE_AUTOINC3) && dc->src == i) { |
857 | gen_store_v10(dc, addr, t0, 4); |
858 | } else { |
859 | gen_store_v10(dc, addr, cpu_R[i], 4); |
860 | } |
861 | tcg_gen_addi_tltcg_gen_addi_i32(addr, addr, 4); |
862 | } |
863 | |
864 | if (pfix && dc->mode == CRISV10_MODE_AUTOINC3) { |
865 | tcg_gen_mov_tltcg_gen_mov_i32(cpu_R[dc->src], t0); |
866 | } |
867 | |
868 | if (!pfix && dc->mode == CRISV10_MODE_AUTOINC3) { |
869 | tcg_gen_mov_tltcg_gen_mov_i32(cpu_R[dc->src], addr); |
870 | } |
871 | tcg_temp_freetcg_temp_free_i32(addr); |
872 | tcg_temp_freetcg_temp_free_i32(t0); |
873 | } |
874 | |
875 | static void dec10_movem_m_r(DisasContext *dc) |
876 | { |
877 | int i, pfix = dc->tb_flags & PFIX_FLAG0x800; |
878 | TCGvTCGv_i32 addr, t0; |
879 | |
880 | LOG_DIS("%s [r%d], r%d pi=%d ir=%x\n", __func__,do { } while (0) |
881 | dc->src, dc->dst, dc->postinc, dc->ir)do { } while (0); |
882 | |
883 | addr = tcg_temp_new()tcg_temp_new_i32(); |
884 | t0 = tcg_temp_new()tcg_temp_new_i32(); |
885 | crisv10_prepare_memaddr(dc, addr, 4); |
886 | tcg_gen_mov_tltcg_gen_mov_i32(t0, addr); |
887 | for (i = dc->dst; i >= 0; i--) { |
888 | gen_load(dc, cpu_R[i], addr, 4, 0); |
889 | tcg_gen_addi_tltcg_gen_addi_i32(addr, addr, 4); |
890 | } |
891 | |
892 | if (pfix && dc->mode == CRISV10_MODE_AUTOINC3) { |
893 | tcg_gen_mov_tltcg_gen_mov_i32(cpu_R[dc->src], t0); |
894 | } |
895 | |
896 | if (!pfix && dc->mode == CRISV10_MODE_AUTOINC3) { |
897 | tcg_gen_mov_tltcg_gen_mov_i32(cpu_R[dc->src], addr); |
898 | } |
899 | tcg_temp_freetcg_temp_free_i32(addr); |
900 | tcg_temp_freetcg_temp_free_i32(t0); |
901 | } |
902 | |
903 | static int dec10_ind_alu(CPUCRISState *env, DisasContext *dc, |
904 | int op, unsigned int size) |
905 | { |
906 | int insn_len = 0; |
907 | int rd = dc->dst; |
908 | TCGvTCGv_i32 t[2]; |
909 | |
910 | cris_alu_m_alloc_temps(t); |
911 | insn_len += dec10_prep_move_m(env, dc, 0, size, t[0]); |
912 | cris_alu(dc, op, cpu_R[dc->dst], cpu_R[rd], t[0], size); |
913 | if (dc->dst == 15) { |
914 | tcg_gen_mov_tltcg_gen_mov_i32(env_btarget, cpu_R[dc->dst]); |
915 | cris_prepare_jmp(dc, JMP_INDIRECT3); |
916 | dc->delayed_branch = 1; |
917 | return insn_len; |
918 | } |
919 | |
920 | cris_alu_m_free_temps(t); |
921 | |
922 | return insn_len; |
923 | } |
924 | |
925 | static int dec10_ind_bound(CPUCRISState *env, DisasContext *dc, |
926 | unsigned int size) |
927 | { |
928 | int insn_len = 0; |
929 | int rd = dc->dst; |
930 | TCGvTCGv_i32 t; |
931 | |
932 | t = tcg_temp_local_new()tcg_temp_local_new_i32(); |
933 | insn_len += dec10_prep_move_m(env, dc, 0, size, t); |
934 | cris_alu(dc, CC_OP_BOUND, cpu_R[dc->dst], cpu_R[rd], t, 4); |
935 | if (dc->dst == 15) { |
936 | tcg_gen_mov_tltcg_gen_mov_i32(env_btarget, cpu_R[dc->dst]); |
937 | cris_prepare_jmp(dc, JMP_INDIRECT3); |
938 | dc->delayed_branch = 1; |
939 | return insn_len; |
940 | } |
941 | |
942 | tcg_temp_freetcg_temp_free_i32(t); |
943 | return insn_len; |
944 | } |
945 | |
946 | static int dec10_alux_m(CPUCRISState *env, DisasContext *dc, int op) |
947 | { |
948 | unsigned int size = (dc->size & 1) ? 2 : 1; |
949 | unsigned int sx = !!(dc->size & 2); |
950 | int insn_len = 2; |
951 | int rd = dc->dst; |
952 | TCGvTCGv_i32 t; |
953 | |
954 | LOG_DIS("addx size=%d sx=%d op=%d %d\n", size, sx, dc->src, dc->dst)do { } while (0); |
955 | |
956 | t = tcg_temp_new()tcg_temp_new_i32(); |
957 | |
958 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
959 | insn_len += dec10_prep_move_m(env, dc, sx, size, t); |
960 | cris_alu(dc, op, cpu_R[dc->dst], cpu_R[rd], t, 4); |
961 | if (dc->dst == 15) { |
962 | tcg_gen_mov_tltcg_gen_mov_i32(env_btarget, cpu_R[dc->dst]); |
963 | cris_prepare_jmp(dc, JMP_INDIRECT3); |
964 | dc->delayed_branch = 1; |
965 | return insn_len; |
966 | } |
967 | |
968 | tcg_temp_freetcg_temp_free_i32(t); |
969 | return insn_len; |
970 | } |
971 | |
972 | static int dec10_dip(CPUCRISState *env, DisasContext *dc) |
973 | { |
974 | int insn_len = 2; |
975 | uint32_t imm; |
976 | |
977 | LOG_DIS("dip pc=%x opcode=%d r%d r%d\n",do { } while (0) |
978 | dc->pc, dc->opcode, dc->src, dc->dst)do { } while (0); |
979 | if (dc->src == 15) { |
980 | imm = cpu_ldl_code(env, dc->pc + 2)ldl_le_p(((void *)((unsigned long)(target_ulong)((dc->pc + 2)) + guest_base))); |
981 | tcg_gen_movi_tltcg_gen_movi_i32(cpu_PR[PR_PREFIX6], imm); |
982 | if (dc->postinc) |
983 | insn_len += 4; |
984 | tcg_gen_addi_tltcg_gen_addi_i32(cpu_R[15], cpu_R[15], insn_len - 2); |
985 | } else { |
986 | gen_load(dc, cpu_PR[PR_PREFIX6], cpu_R[dc->src], 4, 0); |
987 | if (dc->postinc) |
988 | tcg_gen_addi_tltcg_gen_addi_i32(cpu_R[dc->src], cpu_R[dc->src], 4); |
989 | } |
990 | |
991 | cris_set_prefix(dc); |
992 | return insn_len; |
993 | } |
994 | |
995 | static int dec10_bdap_m(CPUCRISState *env, DisasContext *dc, int size) |
996 | { |
997 | int insn_len = 2; |
998 | int rd = dc->dst; |
999 | |
1000 | LOG_DIS("bdap_m pc=%x opcode=%d r%d r%d sz=%d\n",do { } while (0) |
1001 | dc->pc, dc->opcode, dc->src, dc->dst, size)do { } while (0); |
1002 | |
1003 | assert(dc->dst != 15)((dc->dst != 15) ? (void) (0) : __assert_fail ("dc->dst != 15" , "/home/stefan/src/qemu/qemu.org/qemu/target-cris/translate_v10.c" , 1003, __PRETTY_FUNCTION__)); |
1004 | #if 0 |
1005 | /* 8bit embedded offset? */ |
1006 | if (!dc->postinc && (dc->ir & (1 << 11))) { |
1007 | int simm = dc->ir & 0xff; |
1008 | |
1009 | /* cpu_abort(dc->env, "Unhandled opcode"); */ |
1010 | /* sign extended. */ |
1011 | simm = (int8_t)simm; |
1012 | |
1013 | tcg_gen_addi_tltcg_gen_addi_i32(cpu_PR[PR_PREFIX6], cpu_R[dc->dst], simm); |
1014 | |
1015 | cris_set_prefix(dc); |
1016 | return insn_len; |
1017 | } |
1018 | #endif |
1019 | /* Now the rest of the modes are truly indirect. */ |
1020 | insn_len += dec10_prep_move_m(env, dc, 1, size, cpu_PR[PR_PREFIX6]); |
1021 | tcg_gen_add_tltcg_gen_add_i32(cpu_PR[PR_PREFIX6], cpu_PR[PR_PREFIX6], cpu_R[rd]); |
1022 | cris_set_prefix(dc); |
1023 | return insn_len; |
1024 | } |
1025 | |
1026 | static unsigned int dec10_ind(CPUCRISState *env, DisasContext *dc) |
1027 | { |
1028 | unsigned int insn_len = 2; |
1029 | unsigned int size = dec10_size(dc->size); |
1030 | uint32_t imm; |
1031 | int32_t simm; |
1032 | TCGvTCGv_i32 t[2]; |
1033 | |
1034 | if (dc->size != 3) { |
1035 | switch (dc->opcode) { |
1036 | case CRISV10_IND_MOVE_M_R9: |
1037 | return dec10_ind_move_m_r(env, dc, size); |
1038 | break; |
1039 | case CRISV10_IND_MOVE_R_M15: |
1040 | return dec10_ind_move_r_m(dc, size); |
1041 | break; |
1042 | case CRISV10_IND_CMP11: |
1043 | LOG_DIS("cmp size=%d op=%d %d\n", size, dc->src, dc->dst)do { } while (0); |
1044 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
1045 | insn_len += dec10_ind_alu(env, dc, CC_OP_CMP, size); |
1046 | break; |
1047 | case CRISV10_IND_TEST14: |
1048 | LOG_DIS("test size=%d op=%d %d\n", size, dc->src, dc->dst)do { } while (0); |
1049 | |
1050 | cris_evaluate_flags(dc); |
1051 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
1052 | cris_alu_m_alloc_temps(t); |
1053 | insn_len += dec10_prep_move_m(env, dc, 0, size, t[0]); |
1054 | tcg_gen_andi_tltcg_gen_andi_i32(cpu_PR[PR_CCS13], cpu_PR[PR_CCS13], ~3); |
1055 | cris_alu(dc, CC_OP_CMP, cpu_R[dc->dst], |
1056 | t[0], tcg_const_tltcg_const_i32(0), size); |
1057 | cris_alu_m_free_temps(t); |
1058 | break; |
1059 | case CRISV10_IND_ADD8: |
1060 | LOG_DIS("add size=%d op=%d %d\n", size, dc->src, dc->dst)do { } while (0); |
1061 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
1062 | insn_len += dec10_ind_alu(env, dc, CC_OP_ADD, size); |
1063 | break; |
1064 | case CRISV10_IND_SUB10: |
1065 | LOG_DIS("sub size=%d op=%d %d\n", size, dc->src, dc->dst)do { } while (0); |
1066 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
1067 | insn_len += dec10_ind_alu(env, dc, CC_OP_SUB, size); |
1068 | break; |
1069 | case CRISV10_IND_BOUND7: |
1070 | LOG_DIS("bound size=%d op=%d %d\n", size, dc->src, dc->dst)do { } while (0); |
1071 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
1072 | insn_len += dec10_ind_bound(env, dc, size); |
1073 | break; |
1074 | case CRISV10_IND_AND12: |
1075 | LOG_DIS("and size=%d op=%d %d\n", size, dc->src, dc->dst)do { } while (0); |
1076 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
1077 | insn_len += dec10_ind_alu(env, dc, CC_OP_AND, size); |
1078 | break; |
1079 | case CRISV10_IND_OR13: |
1080 | LOG_DIS("or size=%d op=%d %d\n", size, dc->src, dc->dst)do { } while (0); |
1081 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
1082 | insn_len += dec10_ind_alu(env, dc, CC_OP_OR, size); |
1083 | break; |
1084 | case CRISV10_IND_MOVX1: |
1085 | insn_len = dec10_alux_m(env, dc, CC_OP_MOVE); |
1086 | break; |
1087 | case CRISV10_IND_ADDX0: |
1088 | insn_len = dec10_alux_m(env, dc, CC_OP_ADD); |
1089 | break; |
1090 | case CRISV10_IND_SUBX2: |
1091 | insn_len = dec10_alux_m(env, dc, CC_OP_SUB); |
1092 | break; |
1093 | case CRISV10_IND_CMPX3: |
1094 | insn_len = dec10_alux_m(env, dc, CC_OP_CMP); |
1095 | break; |
1096 | case CRISV10_IND_MUL4: |
1097 | /* This is a reg insn coded in the mem indir space. */ |
1098 | LOG_DIS("mul pc=%x opcode=%d\n", dc->pc, dc->opcode)do { } while (0); |
1099 | cris_cc_mask(dc, CC_MASK_NZVC0xf); |
1100 | dec10_reg_mul(dc, size, dc->ir & (1 << 10)); |
1101 | break; |
1102 | case CRISV10_IND_BDAP_M5: |
1103 | insn_len = dec10_bdap_m(env, dc, size); |
1104 | break; |
1105 | default: |
1106 | LOG_DIS("pc=%x var-ind.%d %d r%d r%d\n",do { } while (0) |
1107 | dc->pc, size, dc->opcode, dc->src, dc->dst)do { } while (0); |
1108 | cpu_abort(dc->env, "Unhandled opcode"); |
1109 | break; |
1110 | } |
1111 | return insn_len; |
1112 | } |
1113 | |
1114 | switch (dc->opcode) { |
1115 | case CRISV10_IND_MOVE_M_SPR8: |
1116 | insn_len = dec10_ind_move_m_pr(env, dc); |
1117 | break; |
1118 | case CRISV10_IND_MOVE_SPR_M9: |
1119 | insn_len = dec10_ind_move_pr_m(dc); |
1120 | break; |
1121 | case CRISV10_IND_JUMP_M4: |
1122 | if (dc->src == 15) { |
1123 | LOG_DIS("jump.%d %d r%d r%d direct\n", size,do { } while (0) |
1124 | dc->opcode, dc->src, dc->dst)do { } while (0); |
1125 | imm = cpu_ldl_code(env, dc->pc + 2)ldl_le_p(((void *)((unsigned long)(target_ulong)((dc->pc + 2)) + guest_base))); |
1126 | if (dc->mode == CRISV10_MODE_AUTOINC3) |
1127 | insn_len += size; |
1128 | |
1129 | t_gen_mov_preg_TN(dc, dc->dst, tcg_const_tltcg_const_i32(dc->pc + insn_len)); |
1130 | dc->jmp_pc = imm; |
1131 | cris_prepare_jmp(dc, JMP_DIRECT1); |
1132 | dc->delayed_branch--; /* v10 has no dslot here. */ |
1133 | } else { |
1134 | if (dc->dst == 14) { |
1135 | LOG_DIS("break %d\n", dc->src)do { } while (0); |
1136 | cris_evaluate_flags(dc); |
1137 | tcg_gen_movi_tltcg_gen_movi_i32(env_pc, dc->pc + 2); |
1138 | t_gen_mov_env_TN(trap_vector, tcg_const_tl(dc->src + 2))_t_gen_mov_env_TN(__builtin_offsetof(CPUCRISState, trap_vector ), (tcg_const_i32(dc->src + 2))); |
1139 | t_gen_raise_exception(EXCP_BREAK5); |
1140 | dc->is_jmp = DISAS_UPDATE2; |
1141 | return insn_len; |
1142 | } |
1143 | LOG_DIS("%d: jump.%d %d r%d r%d\n", __LINE__, size,do { } while (0) |
1144 | dc->opcode, dc->src, dc->dst)do { } while (0); |
1145 | t[0] = tcg_temp_new()tcg_temp_new_i32(); |
1146 | t_gen_mov_preg_TN(dc, dc->dst, tcg_const_tltcg_const_i32(dc->pc + insn_len)); |
1147 | crisv10_prepare_memaddr(dc, t[0], size); |
1148 | gen_load(dc, env_btarget, t[0], 4, 0); |
1149 | insn_len += crisv10_post_memaddr(dc, size); |
1150 | cris_prepare_jmp(dc, JMP_INDIRECT3); |
1151 | dc->delayed_branch--; /* v10 has no dslot here. */ |
1152 | tcg_temp_freetcg_temp_free_i32(t[0]); |
1153 | } |
1154 | break; |
1155 | |
1156 | case CRISV10_IND_MOVEM_R_M15: |
1157 | LOG_DIS("movem_r_m pc=%x opcode=%d r%d r%d\n",do { } while (0) |
1158 | dc->pc, dc->opcode, dc->dst, dc->src)do { } while (0); |
1159 | dec10_movem_r_m(dc); |
1160 | break; |
1161 | case CRISV10_IND_MOVEM_M_R14: |
1162 | LOG_DIS("movem_m_r pc=%x opcode=%d\n", dc->pc, dc->opcode)do { } while (0); |
1163 | dec10_movem_m_r(dc); |
1164 | break; |
1165 | case CRISV10_IND_JUMP_R6: |
1166 | LOG_DIS("jmp pc=%x opcode=%d r%d r%d\n",do { } while (0) |
1167 | dc->pc, dc->opcode, dc->dst, dc->src)do { } while (0); |
1168 | tcg_gen_mov_tltcg_gen_mov_i32(env_btarget, cpu_R[dc->src]); |
1169 | t_gen_mov_preg_TN(dc, dc->dst, tcg_const_tltcg_const_i32(dc->pc + insn_len)); |
1170 | cris_prepare_jmp(dc, JMP_INDIRECT3); |
1171 | dc->delayed_branch--; /* v10 has no dslot here. */ |
1172 | break; |
1173 | case CRISV10_IND_MOVX1: |
1174 | insn_len = dec10_alux_m(env, dc, CC_OP_MOVE); |
1175 | break; |
1176 | case CRISV10_IND_ADDX0: |
1177 | insn_len = dec10_alux_m(env, dc, CC_OP_ADD); |
1178 | break; |
1179 | case CRISV10_IND_SUBX2: |
1180 | insn_len = dec10_alux_m(env, dc, CC_OP_SUB); |
1181 | break; |
1182 | case CRISV10_IND_CMPX3: |
1183 | insn_len = dec10_alux_m(env, dc, CC_OP_CMP); |
1184 | break; |
1185 | case CRISV10_IND_DIP5: |
1186 | insn_len = dec10_dip(env, dc); |
1187 | break; |
1188 | case CRISV10_IND_BCC_M7: |
1189 | |
1190 | cris_cc_mask(dc, 0); |
1191 | imm = cpu_ldsw_code(env, dc->pc + 2)ldsw_le_p(((void *)((unsigned long)(target_ulong)((dc->pc + 2)) + guest_base))); |
1192 | simm = (int16_t)imm; |
1193 | simm += 4; |
1194 | |
1195 | LOG_DIS("bcc_m: b%s %x\n", cc_name(dc->cond), dc->pc + simm)do { } while (0); |
1196 | cris_prepare_cc_branch(dc, simm, dc->cond); |
1197 | insn_len = 4; |
1198 | break; |
1199 | default: |
1200 | LOG_DIS("ERROR pc=%x opcode=%d\n", dc->pc, dc->opcode)do { } while (0); |
1201 | cpu_abort(dc->env, "Unhandled opcode"); |
1202 | break; |
1203 | } |
1204 | |
1205 | return insn_len; |
1206 | } |
1207 | |
1208 | static unsigned int crisv10_decoder(CPUCRISState *env, DisasContext *dc) |
1209 | { |
1210 | unsigned int insn_len = 2; |
1211 | |
1212 | if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))__builtin_expect(!!(qemu_loglevel_mask((1 << 2))), 0)) |
1213 | tcg_gen_debug_insn_start(dc->pc); |
1214 | |
1215 | /* Load a halfword onto the instruction register. */ |
1216 | dc->ir = cpu_lduw_code(env, dc->pc)lduw_le_p(((void *)((unsigned long)(target_ulong)((dc->pc) ) + guest_base))); |
1217 | |
1218 | /* Now decode it. */ |
1219 | dc->opcode = EXTRACT_FIELD(dc->ir, 6, 9)(((dc->ir) >> 6) & ((1 << (9 - 6 + 1)) - 1 )); |
1220 | dc->mode = EXTRACT_FIELD(dc->ir, 10, 11)(((dc->ir) >> 10) & ((1 << (11 - 10 + 1)) - 1)); |
1221 | dc->src = EXTRACT_FIELD(dc->ir, 0, 3)(((dc->ir) >> 0) & ((1 << (3 - 0 + 1)) - 1 )); |
1222 | dc->size = EXTRACT_FIELD(dc->ir, 4, 5)(((dc->ir) >> 4) & ((1 << (5 - 4 + 1)) - 1 )); |
1223 | dc->cond = dc->dst = EXTRACT_FIELD(dc->ir, 12, 15)(((dc->ir) >> 12) & ((1 << (15 - 12 + 1)) - 1)); |
1224 | dc->postinc = EXTRACT_FIELD(dc->ir, 10, 10)(((dc->ir) >> 10) & ((1 << (10 - 10 + 1)) - 1)); |
1225 | |
1226 | dc->clear_prefix = 1; |
1227 | |
1228 | /* FIXME: What if this insn insn't 2 in length?? */ |
1229 | if (dc->src == 15 || dc->dst == 15) |
1230 | tcg_gen_movi_tltcg_gen_movi_i32(cpu_R[15], dc->pc + 2); |
1231 | |
1232 | switch (dc->mode) { |
1233 | case CRISV10_MODE_QIMMEDIATE0: |
1234 | insn_len = dec10_quick_imm(dc); |
1235 | break; |
1236 | case CRISV10_MODE_REG1: |
1237 | insn_len = dec10_reg(dc); |
1238 | break; |
1239 | case CRISV10_MODE_AUTOINC3: |
1240 | case CRISV10_MODE_INDIRECT2: |
1241 | insn_len = dec10_ind(env, dc); |
1242 | break; |
1243 | } |
1244 | |
1245 | if (dc->clear_prefix && dc->tb_flags & PFIX_FLAG0x800) { |
1246 | dc->tb_flags &= ~PFIX_FLAG0x800; |
1247 | tcg_gen_andi_tltcg_gen_andi_i32(cpu_PR[PR_CCS13], cpu_PR[PR_CCS13], ~PFIX_FLAG0x800); |
1248 | if (dc->tb_flags != dc->tb->flags) { |
1249 | dc->cpustate_changed = 1; |
1250 | } |
1251 | } |
1252 | |
1253 | /* CRISv10 locks out interrupts on dslots. */ |
1254 | if (dc->delayed_branch == 2) { |
1255 | cris_lock_irq(dc); |
1256 | } |
1257 | return insn_len; |
1258 | } |
1259 | |
1260 | void cris_initialize_crisv10_tcg(void) |
1261 | { |
1262 | int i; |
1263 | |
1264 | cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env")__extension__ ({ TCGv_ptr make_tcgv_tmp = {((tcg_global_reg_new_i64 ((TCG_REG_R14), ("env"))).i64)}; make_tcgv_tmp; }); |
1265 | cc_x = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1266 | offsetof(CPUCRISState, cc_x)__builtin_offsetof(CPUCRISState, cc_x), "cc_x"); |
1267 | cc_src = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1268 | offsetof(CPUCRISState, cc_src)__builtin_offsetof(CPUCRISState, cc_src), "cc_src"); |
1269 | cc_dest = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1270 | offsetof(CPUCRISState, cc_dest)__builtin_offsetof(CPUCRISState, cc_dest), |
1271 | "cc_dest"); |
1272 | cc_result = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1273 | offsetof(CPUCRISState, cc_result)__builtin_offsetof(CPUCRISState, cc_result), |
1274 | "cc_result"); |
1275 | cc_op = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1276 | offsetof(CPUCRISState, cc_op)__builtin_offsetof(CPUCRISState, cc_op), "cc_op"); |
1277 | cc_size = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1278 | offsetof(CPUCRISState, cc_size)__builtin_offsetof(CPUCRISState, cc_size), |
1279 | "cc_size"); |
1280 | cc_mask = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1281 | offsetof(CPUCRISState, cc_mask)__builtin_offsetof(CPUCRISState, cc_mask), |
1282 | "cc_mask"); |
1283 | |
1284 | env_pc = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1285 | offsetof(CPUCRISState, pc)__builtin_offsetof(CPUCRISState, pc), |
1286 | "pc"); |
1287 | env_btarget = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1288 | offsetof(CPUCRISState, btarget)__builtin_offsetof(CPUCRISState, btarget), |
1289 | "btarget"); |
1290 | env_btaken = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1291 | offsetof(CPUCRISState, btaken)__builtin_offsetof(CPUCRISState, btaken), |
1292 | "btaken"); |
1293 | for (i = 0; i < 16; i++) { |
1294 | cpu_R[i] = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1295 | offsetof(CPUCRISState, regs[i])__builtin_offsetof(CPUCRISState, regs[i]), |
1296 | regnames_v10[i]); |
1297 | } |
1298 | for (i = 0; i < 16; i++) { |
1299 | cpu_PR[i] = tcg_global_mem_newtcg_global_mem_new_i32(TCG_AREG0TCG_REG_R14, |
1300 | offsetof(CPUCRISState, pregs[i])__builtin_offsetof(CPUCRISState, pregs[i]), |
1301 | pregnames_v10[i]); |
1302 | } |
1303 | } |