2 * CRIS emulation for qemu: main translation routines.
4 * Copyright (c) 2008 AXIS Communications AB
5 * Written by Edgar E. Iglesias.
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.
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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * The condition code translation is in desperate need of attention. It's slow
25 * and for system simulation it seems buggy. It sucks.
40 #include "crisv32-decode.h"
41 #include "qemu-common.h"
58 #define BUG() (gen_BUG(dc, __FILE__, __LINE__))
59 #define BUG_ON(x) ({if (x) BUG();})
63 /* Used by the decoder. */
64 #define EXTRACT_FIELD(src, start, end) \
65 (((src) >> start) & ((1 << (end - start + 1)) - 1))
67 #define CC_MASK_NZ 0xc
68 #define CC_MASK_NZV 0xe
69 #define CC_MASK_NZVC 0xf
70 #define CC_MASK_RNZV 0x10e
86 /* This is the state at translation time. */
87 typedef struct DisasContext {
96 unsigned int zsize, zzsize;
104 int flags_live; /* Wether or not $ccs is uptodate. */
105 int flagx_live; /* Wether or not flags_x has the x flag known at
108 int clear_x; /* Clear x after this insn? */
110 int user; /* user or kernel mode. */
119 struct TranslationBlock *tb;
120 int singlestep_enabled;
123 void cris_prepare_jmp (DisasContext *dc, uint32_t dst);
124 static void gen_BUG(DisasContext *dc, char *file, int line)
126 printf ("BUG: pc=%x %s %d\n", dc->pc, file, line);
127 fprintf (logfile, "BUG: pc=%x %s %d\n", dc->pc, file, line);
128 cpu_dump_state (dc->env, stdout, fprintf, 0);
130 cris_prepare_jmp (dc, 0x70000000 + line);
133 const char *regnames[] =
135 "$r0", "$r1", "$r2", "$r3",
136 "$r4", "$r5", "$r6", "$r7",
137 "$r8", "$r9", "$r10", "$r11",
138 "$r12", "$r13", "$sp", "$acr",
140 const char *pregnames[] =
142 "$bz", "$vr", "$pid", "$srs",
143 "$wz", "$exs", "$eda", "$mof",
144 "$dz", "$ebp", "$erp", "$srp",
145 "$nrp", "$ccs", "$usp", "$spc",
148 /* We need this table to handle preg-moves with implicit width. */
160 #define t_gen_mov_TN_env(tn, member) \
161 _t_gen_mov_TN_env((tn), offsetof(CPUState, member))
162 #define t_gen_mov_env_TN(member, tn) \
163 _t_gen_mov_env_TN(offsetof(CPUState, member), (tn))
165 static inline void t_gen_mov_TN_reg(TCGv tn, int r)
168 fprintf(stderr, "wrong register read $r%d\n", r);
169 tcg_gen_mov_tl(tn, cpu_R[r]);
171 static inline void t_gen_mov_reg_TN(int r, TCGv tn)
174 fprintf(stderr, "wrong register write $r%d\n", r);
175 tcg_gen_mov_tl(cpu_R[r], tn);
178 static inline void _t_gen_mov_TN_env(TCGv tn, int offset)
180 if (offset > sizeof (CPUState))
181 fprintf(stderr, "wrong load from env from off=%d\n", offset);
182 tcg_gen_ld_tl(tn, cpu_env, offset);
184 static inline void _t_gen_mov_env_TN(int offset, TCGv tn)
186 if (offset > sizeof (CPUState))
187 fprintf(stderr, "wrong store to env at off=%d\n", offset);
188 tcg_gen_st_tl(tn, cpu_env, offset);
191 static inline void t_gen_mov_TN_preg(TCGv tn, int r)
194 fprintf(stderr, "wrong register read $p%d\n", r);
195 if (r == PR_BZ || r == PR_WZ || r == PR_DZ)
196 tcg_gen_mov_tl(tn, tcg_const_tl(0));
198 tcg_gen_mov_tl(tn, tcg_const_tl(32));
199 else if (r == PR_EXS) {
200 printf("read from EXS!\n");
201 tcg_gen_mov_tl(tn, cpu_PR[r]);
203 else if (r == PR_EDA) {
204 printf("read from EDA!\n");
205 tcg_gen_mov_tl(tn, cpu_PR[r]);
208 tcg_gen_mov_tl(tn, cpu_PR[r]);
210 static inline void t_gen_mov_preg_TN(int r, TCGv tn)
213 fprintf(stderr, "wrong register write $p%d\n", r);
214 if (r == PR_BZ || r == PR_WZ || r == PR_DZ)
216 else if (r == PR_SRS)
217 tcg_gen_andi_tl(cpu_PR[r], tn, 3);
220 tcg_gen_helper_0_0(helper_tlb_flush);
222 tcg_gen_mov_tl(cpu_PR[r], tn);
226 static inline void t_gen_mov_TN_im(TCGv tn, int32_t val)
228 tcg_gen_movi_tl(tn, val);
231 static void t_gen_lsl(TCGv d, TCGv a, TCGv b)
235 l1 = gen_new_label();
236 /* Speculative shift. */
237 tcg_gen_shl_tl(d, a, b);
238 tcg_gen_brcond_tl(TCG_COND_LE, b, tcg_const_tl(31), l1);
239 /* Clear dst if shift operands were to large. */
240 tcg_gen_movi_tl(d, 0);
244 static void t_gen_lsr(TCGv d, TCGv a, TCGv b)
248 l1 = gen_new_label();
249 /* Speculative shift. */
250 tcg_gen_shr_tl(d, a, b);
251 tcg_gen_brcond_tl(TCG_COND_LE, b, tcg_const_tl(31), l1);
252 /* Clear dst if shift operands were to large. */
253 tcg_gen_movi_tl(d, 0);
257 static void t_gen_asr(TCGv d, TCGv a, TCGv b)
261 l1 = gen_new_label();
262 /* Speculative shift. */
263 tcg_gen_sar_tl(d, a, b);
264 tcg_gen_brcond_tl(TCG_COND_LE, b, tcg_const_tl(31), l1);
265 /* Clear dst if shift operands were to large. */
266 tcg_gen_sar_tl(d, a, tcg_const_tl(30));
270 /* 64-bit signed mul, lower result in d and upper in d2. */
271 static void t_gen_muls(TCGv d, TCGv d2, TCGv a, TCGv b)
275 t0 = tcg_temp_new(TCG_TYPE_I64);
276 t1 = tcg_temp_new(TCG_TYPE_I64);
278 tcg_gen_ext32s_i64(t0, a);
279 tcg_gen_ext32s_i64(t1, b);
280 tcg_gen_mul_i64(t0, t0, t1);
282 tcg_gen_trunc_i64_i32(d, t0);
283 tcg_gen_shri_i64(t0, t0, 32);
284 tcg_gen_trunc_i64_i32(d2, t0);
286 tcg_gen_discard_i64(t0);
287 tcg_gen_discard_i64(t1);
290 /* 64-bit unsigned muls, lower result in d and upper in d2. */
291 static void t_gen_mulu(TCGv d, TCGv d2, TCGv a, TCGv b)
295 t0 = tcg_temp_new(TCG_TYPE_I64);
296 t1 = tcg_temp_new(TCG_TYPE_I64);
298 tcg_gen_extu_i32_i64(t0, a);
299 tcg_gen_extu_i32_i64(t1, b);
300 tcg_gen_mul_i64(t0, t0, t1);
302 tcg_gen_trunc_i64_i32(d, t0);
303 tcg_gen_shri_i64(t0, t0, 32);
304 tcg_gen_trunc_i64_i32(d2, t0);
306 tcg_gen_discard_i64(t0);
307 tcg_gen_discard_i64(t1);
310 /* 32bit branch-free binary search for counting leading zeros. */
311 static void t_gen_lz_i32(TCGv d, TCGv x)
315 y = tcg_temp_new(TCG_TYPE_I32);
316 m = tcg_temp_new(TCG_TYPE_I32);
317 n = tcg_temp_new(TCG_TYPE_I32);
320 tcg_gen_shri_i32(y, x, 16);
321 tcg_gen_sub_i32(y, tcg_const_i32(0), y);
323 /* m = (y >> 16) & 16 */
324 tcg_gen_sari_i32(m, y, 16);
325 tcg_gen_andi_i32(m, m, 16);
328 tcg_gen_sub_i32(n, tcg_const_i32(16), m);
330 tcg_gen_shr_i32(x, x, m);
333 tcg_gen_subi_i32(y, x, 0x100);
334 /* m = (y >> 16) & 8 */
335 tcg_gen_sari_i32(m, y, 16);
336 tcg_gen_andi_i32(m, m, 8);
338 tcg_gen_add_i32(n, n, m);
340 tcg_gen_shl_i32(x, x, m);
343 tcg_gen_subi_i32(y, x, 0x1000);
344 /* m = (y >> 16) & 4 */
345 tcg_gen_sari_i32(m, y, 16);
346 tcg_gen_andi_i32(m, m, 4);
348 tcg_gen_add_i32(n, n, m);
350 tcg_gen_shl_i32(x, x, m);
353 tcg_gen_subi_i32(y, x, 0x4000);
354 /* m = (y >> 16) & 2 */
355 tcg_gen_sari_i32(m, y, 16);
356 tcg_gen_andi_i32(m, m, 2);
358 tcg_gen_add_i32(n, n, m);
360 tcg_gen_shl_i32(x, x, m);
363 tcg_gen_shri_i32(y, x, 14);
364 /* m = y & ~(y >> 1) */
365 tcg_gen_sari_i32(m, y, 1);
366 tcg_gen_xori_i32(m, m, 0xffffffff);
367 tcg_gen_and_i32(m, m, y);
370 tcg_gen_addi_i32(d, n, 2);
371 tcg_gen_sub_i32(d, d, m);
373 tcg_gen_discard_i32(y);
374 tcg_gen_discard_i32(m);
375 tcg_gen_discard_i32(n);
378 static void t_gen_cris_dstep(TCGv d, TCGv s)
382 l1 = gen_new_label();
389 tcg_gen_shli_tl(d, d, 1);
390 tcg_gen_brcond_tl(TCG_COND_LTU, d, s, l1);
391 tcg_gen_sub_tl(d, d, s);
395 /* Extended arithmetics on CRIS. */
396 static inline void t_gen_add_flag(TCGv d, int flag)
400 c = tcg_temp_new(TCG_TYPE_TL);
401 t_gen_mov_TN_preg(c, PR_CCS);
402 /* Propagate carry into d. */
403 tcg_gen_andi_tl(c, c, 1 << flag);
405 tcg_gen_shri_tl(c, c, flag);
406 tcg_gen_add_tl(d, d, c);
407 tcg_gen_discard_tl(c);
410 static inline void t_gen_addx_carry(TCGv d)
414 x = tcg_temp_new(TCG_TYPE_TL);
415 c = tcg_temp_new(TCG_TYPE_TL);
416 t_gen_mov_TN_preg(x, PR_CCS);
417 tcg_gen_mov_tl(c, x);
419 /* Propagate carry into d if X is set. Branch free. */
420 tcg_gen_andi_tl(c, c, C_FLAG);
421 tcg_gen_andi_tl(x, x, X_FLAG);
422 tcg_gen_shri_tl(x, x, 4);
424 tcg_gen_and_tl(x, x, c);
425 tcg_gen_add_tl(d, d, x);
426 tcg_gen_discard_tl(x);
427 tcg_gen_discard_tl(c);
430 static inline void t_gen_subx_carry(TCGv d)
434 x = tcg_temp_new(TCG_TYPE_TL);
435 c = tcg_temp_new(TCG_TYPE_TL);
436 t_gen_mov_TN_preg(x, PR_CCS);
437 tcg_gen_mov_tl(c, x);
439 /* Propagate carry into d if X is set. Branch free. */
440 tcg_gen_andi_tl(c, c, C_FLAG);
441 tcg_gen_andi_tl(x, x, X_FLAG);
442 tcg_gen_shri_tl(x, x, 4);
444 tcg_gen_and_tl(x, x, c);
445 tcg_gen_sub_tl(d, d, x);
446 tcg_gen_discard_tl(x);
447 tcg_gen_discard_tl(c);
450 /* Swap the two bytes within each half word of the s operand.
451 T0 = ((T0 << 8) & 0xff00ff00) | ((T0 >> 8) & 0x00ff00ff) */
452 static inline void t_gen_swapb(TCGv d, TCGv s)
456 t = tcg_temp_new(TCG_TYPE_TL);
457 org_s = tcg_temp_new(TCG_TYPE_TL);
459 /* d and s may refer to the same object. */
460 tcg_gen_mov_tl(org_s, s);
461 tcg_gen_shli_tl(t, org_s, 8);
462 tcg_gen_andi_tl(d, t, 0xff00ff00);
463 tcg_gen_shri_tl(t, org_s, 8);
464 tcg_gen_andi_tl(t, t, 0x00ff00ff);
465 tcg_gen_or_tl(d, d, t);
466 tcg_gen_discard_tl(t);
467 tcg_gen_discard_tl(org_s);
470 /* Swap the halfwords of the s operand. */
471 static inline void t_gen_swapw(TCGv d, TCGv s)
474 /* d and s refer the same object. */
475 t = tcg_temp_new(TCG_TYPE_TL);
476 tcg_gen_mov_tl(t, s);
477 tcg_gen_shli_tl(d, t, 16);
478 tcg_gen_shri_tl(t, t, 16);
479 tcg_gen_or_tl(d, d, t);
480 tcg_gen_discard_tl(t);
483 /* Reverse the within each byte.
484 T0 = (((T0 << 7) & 0x80808080) |
485 ((T0 << 5) & 0x40404040) |
486 ((T0 << 3) & 0x20202020) |
487 ((T0 << 1) & 0x10101010) |
488 ((T0 >> 1) & 0x08080808) |
489 ((T0 >> 3) & 0x04040404) |
490 ((T0 >> 5) & 0x02020202) |
491 ((T0 >> 7) & 0x01010101));
493 static inline void t_gen_swapr(TCGv d, TCGv s)
496 int shift; /* LSL when positive, LSR when negative. */
511 /* d and s refer the same object. */
512 t = tcg_temp_new(TCG_TYPE_TL);
513 org_s = tcg_temp_new(TCG_TYPE_TL);
514 tcg_gen_mov_tl(org_s, s);
516 tcg_gen_shli_tl(t, org_s, bitrev[0].shift);
517 tcg_gen_andi_tl(d, t, bitrev[0].mask);
518 for (i = 1; i < sizeof bitrev / sizeof bitrev[0]; i++) {
519 if (bitrev[i].shift >= 0) {
520 tcg_gen_shli_tl(t, org_s, bitrev[i].shift);
522 tcg_gen_shri_tl(t, org_s, -bitrev[i].shift);
524 tcg_gen_andi_tl(t, t, bitrev[i].mask);
525 tcg_gen_or_tl(d, d, t);
527 tcg_gen_discard_tl(t);
528 tcg_gen_discard_tl(org_s);
531 static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
533 TranslationBlock *tb;
535 if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
537 tcg_gen_movi_tl(env_pc, dest);
538 tcg_gen_exit_tb((long)tb + n);
540 tcg_gen_mov_tl(env_pc, cpu_T[0]);
545 /* Sign extend at translation time. */
546 static int sign_extend(unsigned int val, unsigned int width)
558 static inline void cris_clear_x_flag(DisasContext *dc)
561 || (dc->flagx_live && dc->flags_x)
562 || dc->cc_op != CC_OP_FLAGS)
563 tcg_gen_andi_i32(cpu_PR[PR_CCS], cpu_PR[PR_CCS], ~X_FLAG);
568 static void cris_evaluate_flags(DisasContext *dc)
570 if (!dc->flags_live) {
571 tcg_gen_movi_tl(cc_op, dc->cc_op);
572 tcg_gen_movi_tl(cc_size, dc->cc_size);
573 tcg_gen_movi_tl(cc_mask, dc->cc_mask);
578 tcg_gen_helper_0_0(helper_evaluate_flags_mcp);
581 tcg_gen_helper_0_0(helper_evaluate_flags_muls);
584 tcg_gen_helper_0_0(helper_evaluate_flags_mulu);
590 tcg_gen_helper_0_0(helper_evaluate_flags_move_4);
593 tcg_gen_helper_0_0(helper_evaluate_flags_move_2);
596 tcg_gen_helper_0_0(helper_evaluate_flags);
608 tcg_gen_helper_0_0(helper_evaluate_flags_alu_4);
611 tcg_gen_helper_0_0(helper_evaluate_flags);
621 static void cris_cc_mask(DisasContext *dc, unsigned int mask)
625 /* Check if we need to evaluate the condition codes due to
627 ovl = (dc->cc_mask ^ mask) & ~mask;
629 /* TODO: optimize this case. It trigs all the time. */
630 cris_evaluate_flags (dc);
641 static void cris_update_cc_op(DisasContext *dc, int op, int size)
648 /* op is the operation.
649 T0, T1 are the operands.
650 dst is the destination reg.
652 static void crisv32_alu_op(DisasContext *dc, int op, int rd, int size)
656 cris_update_cc_op(dc, op, size);
657 tcg_gen_mov_tl(cc_dest, cpu_T[0]);
659 /* FIXME: This shouldn't be needed. But we don't pass the
660 tests without it. Investigate. */
661 t_gen_mov_env_TN(cc_x_live, tcg_const_tl(dc->flagx_live));
662 t_gen_mov_env_TN(cc_x, tcg_const_tl(dc->flags_x));
665 /* Emit the ALU insns. */
669 tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
670 /* Extended arithmetics. */
671 t_gen_addx_carry(cpu_T[0]);
674 tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
675 t_gen_add_flag(cpu_T[0], 0); /* C_FLAG. */
678 tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
679 t_gen_add_flag(cpu_T[0], 8); /* R_FLAG. */
682 tcg_gen_sub_tl(cpu_T[1], tcg_const_tl(0), cpu_T[1]);
683 tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
684 tcg_gen_sub_tl(cpu_T[1], tcg_const_tl(0), cpu_T[1]);
685 /* CRIS flag evaluation needs ~src. */
686 tcg_gen_xori_tl(cpu_T[1], cpu_T[1], -1);
688 /* Extended arithmetics. */
689 t_gen_subx_carry(cpu_T[0]);
692 tcg_gen_mov_tl(cpu_T[0], cpu_T[1]);
695 tcg_gen_or_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
698 tcg_gen_and_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
701 tcg_gen_xor_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
704 t_gen_lsl(cpu_T[0], cpu_T[0], cpu_T[1]);
707 t_gen_lsr(cpu_T[0], cpu_T[0], cpu_T[1]);
710 t_gen_asr(cpu_T[0], cpu_T[0], cpu_T[1]);
713 /* Hopefully the TCG backend recognizes this pattern
714 and makes a real neg out of it. */
715 tcg_gen_sub_tl(cpu_T[0], tcg_const_tl(0), cpu_T[1]);
716 /* Extended arithmetics. */
717 t_gen_subx_carry(cpu_T[0]);
720 t_gen_lz_i32(cpu_T[0], cpu_T[1]);
729 mof = tcg_temp_new(TCG_TYPE_TL);
730 t_gen_muls(cpu_T[0], mof, cpu_T[0], cpu_T[1]);
731 t_gen_mov_preg_TN(PR_MOF, mof);
732 tcg_gen_discard_tl(mof);
738 mof = tcg_temp_new(TCG_TYPE_TL);
739 t_gen_mulu(cpu_T[0], mof, cpu_T[0], cpu_T[1]);
740 t_gen_mov_preg_TN(PR_MOF, mof);
741 tcg_gen_discard_tl(mof);
745 t_gen_cris_dstep(cpu_T[0], cpu_T[1]);
750 l1 = gen_new_label();
751 tcg_gen_brcond_tl(TCG_COND_LEU,
752 cpu_T[0], cpu_T[1], l1);
753 tcg_gen_mov_tl(cpu_T[0], cpu_T[1]);
758 tcg_gen_sub_tl(cpu_T[1], tcg_const_tl(0), cpu_T[1]);
759 tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
760 /* CRIS flag evaluation needs ~src. */
761 tcg_gen_sub_tl(cpu_T[1], tcg_const_tl(0), cpu_T[1]);
762 /* CRIS flag evaluation needs ~src. */
763 tcg_gen_xori_tl(cpu_T[1], cpu_T[1], -1);
765 /* Extended arithmetics. */
766 t_gen_subx_carry(cpu_T[0]);
770 fprintf (logfile, "illegal ALU op.\n");
776 tcg_gen_mov_tl(cc_src, cpu_T[1]);
779 tcg_gen_andi_tl(cpu_T[0], cpu_T[0], 0xff);
781 tcg_gen_andi_tl(cpu_T[0], cpu_T[0], 0xffff);
786 t_gen_mov_reg_TN(rd, cpu_T[0]);
788 tcg_gen_mov_tl(cpu_T[1], cpu_T[0]);
789 t_gen_mov_TN_reg(cpu_T[0], rd);
791 tcg_gen_andi_tl(cpu_T[0], cpu_T[0], ~0xff);
793 tcg_gen_andi_tl(cpu_T[0], cpu_T[0], ~0xffff);
794 tcg_gen_or_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
795 t_gen_mov_reg_TN(rd, cpu_T[0]);
796 tcg_gen_mov_tl(cpu_T[0], cpu_T[1]);
800 tcg_gen_mov_tl(cc_result, cpu_T[0]);
803 /* TODO: Optimize this. */
805 cris_evaluate_flags(dc);
809 static int arith_cc(DisasContext *dc)
813 case CC_OP_ADD: return 1;
814 case CC_OP_SUB: return 1;
815 case CC_OP_LSL: return 1;
816 case CC_OP_LSR: return 1;
817 case CC_OP_ASR: return 1;
818 case CC_OP_CMP: return 1;
826 static void gen_tst_cc (DisasContext *dc, int cond)
830 /* TODO: optimize more condition codes. */
831 arith_opt = arith_cc(dc) && !dc->flags_live;
835 gen_op_tst_cc_eq_fast ();
837 cris_evaluate_flags(dc);
843 gen_op_tst_cc_ne_fast ();
845 cris_evaluate_flags(dc);
850 cris_evaluate_flags(dc);
854 cris_evaluate_flags(dc);
858 cris_evaluate_flags(dc);
862 cris_evaluate_flags(dc);
867 gen_op_tst_cc_pl_fast ();
869 cris_evaluate_flags(dc);
875 gen_op_tst_cc_mi_fast ();
877 cris_evaluate_flags(dc);
882 cris_evaluate_flags(dc);
886 cris_evaluate_flags(dc);
890 cris_evaluate_flags(dc);
894 cris_evaluate_flags(dc);
898 cris_evaluate_flags(dc);
902 cris_evaluate_flags(dc);
906 cris_evaluate_flags(dc);
910 cris_evaluate_flags(dc);
911 gen_op_movl_T0_im (1);
919 static void cris_prepare_cc_branch (DisasContext *dc, int offset, int cond)
921 /* This helps us re-schedule the micro-code to insns in delay-slots
922 before the actual jump. */
923 dc->delayed_branch = 2;
924 dc->delayed_pc = dc->pc + offset;
928 gen_tst_cc (dc, cond);
929 gen_op_evaluate_bcc ();
931 tcg_gen_movi_tl(env_btarget, dc->delayed_pc);
935 /* Dynamic jumps, when the dest is in a live reg for example. */
936 void cris_prepare_dyn_jmp (DisasContext *dc)
938 /* This helps us re-schedule the micro-code to insns in delay-slots
939 before the actual jump. */
940 dc->delayed_branch = 2;
945 void cris_prepare_jmp (DisasContext *dc, uint32_t dst)
947 /* This helps us re-schedule the micro-code to insns in delay-slots
948 before the actual jump. */
949 dc->delayed_branch = 2;
950 dc->delayed_pc = dst;
955 void gen_load(DisasContext *dc, TCGv dst, TCGv addr,
956 unsigned int size, int sign)
958 int mem_index = cpu_mmu_index(dc->env);
960 /* FIXME: qemu_ld does not act as a barrier? */
961 tcg_gen_helper_0_0(helper_dummy);
962 cris_evaluate_flags(dc);
965 tcg_gen_qemu_ld8s(dst, addr, mem_index);
967 tcg_gen_qemu_ld8u(dst, addr, mem_index);
969 else if (size == 2) {
971 tcg_gen_qemu_ld16s(dst, addr, mem_index);
973 tcg_gen_qemu_ld16u(dst, addr, mem_index);
976 tcg_gen_qemu_ld32s(dst, addr, mem_index);
980 void gen_store_T0_T1 (DisasContext *dc, unsigned int size)
982 int mem_index = cpu_mmu_index(dc->env);
984 /* FIXME: qemu_st does not act as a barrier? */
985 tcg_gen_helper_0_0(helper_dummy);
986 cris_evaluate_flags(dc);
988 /* Remember, operands are flipped. CRIS has reversed order. */
990 tcg_gen_qemu_st8(cpu_T[1], cpu_T[0], mem_index);
992 tcg_gen_qemu_st16(cpu_T[1], cpu_T[0], mem_index);
994 tcg_gen_qemu_st32(cpu_T[1], cpu_T[0], mem_index);
997 static inline void t_gen_sext(TCGv d, TCGv s, int size)
1000 tcg_gen_ext8s_i32(d, s);
1002 tcg_gen_ext16s_i32(d, s);
1004 tcg_gen_mov_tl(d, s);
1007 static inline void t_gen_zext(TCGv d, TCGv s, int size)
1009 /* TCG-FIXME: this is not optimal. Many archs have fast zext insns. */
1011 tcg_gen_andi_i32(d, s, 0xff);
1013 tcg_gen_andi_i32(d, s, 0xffff);
1015 tcg_gen_mov_tl(d, s);
1019 static char memsize_char(int size)
1023 case 1: return 'b'; break;
1024 case 2: return 'w'; break;
1025 case 4: return 'd'; break;
1033 static unsigned int memsize_z(DisasContext *dc)
1035 return dc->zsize + 1;
1038 static unsigned int memsize_zz(DisasContext *dc)
1049 static inline void do_postinc (DisasContext *dc, int size)
1052 tcg_gen_addi_tl(cpu_R[dc->op1], cpu_R[dc->op1], size);
1056 static void dec_prep_move_r(DisasContext *dc, int rs, int rd,
1057 int size, int s_ext)
1060 t_gen_sext(cpu_T[1], cpu_R[rs], size);
1062 t_gen_zext(cpu_T[1], cpu_R[rs], size);
1065 /* Prepare T0 and T1 for a register alu operation.
1066 s_ext decides if the operand1 should be sign-extended or zero-extended when
1068 static void dec_prep_alu_r(DisasContext *dc, int rs, int rd,
1069 int size, int s_ext)
1071 dec_prep_move_r(dc, rs, rd, size, s_ext);
1074 t_gen_sext(cpu_T[0], cpu_R[rd], size);
1076 t_gen_zext(cpu_T[0], cpu_R[rd], size);
1079 /* Prepare T0 and T1 for a memory + alu operation.
1080 s_ext decides if the operand1 should be sign-extended or zero-extended when
1082 static int dec_prep_alu_m(DisasContext *dc, int s_ext, int memsize)
1084 unsigned int rs, rd;
1091 is_imm = rs == 15 && dc->postinc;
1093 /* Load [$rs] onto T1. */
1095 insn_len = 2 + memsize;
1099 imm = ldl_code(dc->pc + 2);
1102 imm = sign_extend(imm, (memsize * 8) - 1);
1110 DIS(fprintf (logfile, "imm=%x rd=%d sext=%d ms=%d\n",
1111 imm, rd, s_ext, memsize));
1112 tcg_gen_movi_tl(cpu_T[1], imm);
1115 gen_load(dc, cpu_T[1], cpu_R[rs], memsize, 0);
1117 t_gen_sext(cpu_T[1], cpu_T[1], memsize);
1119 t_gen_zext(cpu_T[1], cpu_T[1], memsize);
1122 /* put dest in T0. */
1123 t_gen_mov_TN_reg(cpu_T[0], rd);
1128 static const char *cc_name(int cc)
1130 static char *cc_names[16] = {
1131 "cc", "cs", "ne", "eq", "vc", "vs", "pl", "mi",
1132 "ls", "hi", "ge", "lt", "gt", "le", "a", "p"
1135 return cc_names[cc];
1139 /* Start of insn decoders. */
1141 static unsigned int dec_bccq(DisasContext *dc)
1145 uint32_t cond = dc->op2;
1148 offset = EXTRACT_FIELD (dc->ir, 1, 7);
1149 sign = EXTRACT_FIELD(dc->ir, 0, 0);
1152 offset |= sign << 8;
1154 offset = sign_extend(offset, 8);
1156 /* op2 holds the condition-code. */
1157 cris_cc_mask(dc, 0);
1158 cris_prepare_cc_branch (dc, offset, cond);
1161 static unsigned int dec_addoq(DisasContext *dc)
1165 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 7);
1166 imm = sign_extend(dc->op1, 7);
1168 DIS(fprintf (logfile, "addoq %d, $r%u\n", imm, dc->op2));
1169 cris_cc_mask(dc, 0);
1170 /* Fetch register operand, */
1171 tcg_gen_addi_tl(cpu_R[R_ACR], cpu_R[dc->op2], imm);
1174 static unsigned int dec_addq(DisasContext *dc)
1176 DIS(fprintf (logfile, "addq %u, $r%u\n", dc->op1, dc->op2));
1178 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
1180 cris_cc_mask(dc, CC_MASK_NZVC);
1181 /* Fetch register operand, */
1182 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1183 tcg_gen_movi_tl(cpu_T[1], dc->op1);
1184 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
1187 static unsigned int dec_moveq(DisasContext *dc)
1191 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
1192 imm = sign_extend(dc->op1, 5);
1193 DIS(fprintf (logfile, "moveq %d, $r%u\n", imm, dc->op2));
1195 t_gen_mov_reg_TN(dc->op2, tcg_const_tl(imm));
1198 static unsigned int dec_subq(DisasContext *dc)
1200 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
1202 DIS(fprintf (logfile, "subq %u, $r%u\n", dc->op1, dc->op2));
1204 cris_cc_mask(dc, CC_MASK_NZVC);
1205 /* Fetch register operand, */
1206 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1207 t_gen_mov_TN_im(cpu_T[1], dc->op1);
1208 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
1211 static unsigned int dec_cmpq(DisasContext *dc)
1214 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
1215 imm = sign_extend(dc->op1, 5);
1217 DIS(fprintf (logfile, "cmpq %d, $r%d\n", imm, dc->op2));
1218 cris_cc_mask(dc, CC_MASK_NZVC);
1219 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1220 t_gen_mov_TN_im(cpu_T[1], imm);
1221 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, 4);
1224 static unsigned int dec_andq(DisasContext *dc)
1227 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
1228 imm = sign_extend(dc->op1, 5);
1230 DIS(fprintf (logfile, "andq %d, $r%d\n", imm, dc->op2));
1231 cris_cc_mask(dc, CC_MASK_NZ);
1232 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1233 t_gen_mov_TN_im(cpu_T[1], imm);
1234 crisv32_alu_op(dc, CC_OP_AND, dc->op2, 4);
1237 static unsigned int dec_orq(DisasContext *dc)
1240 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
1241 imm = sign_extend(dc->op1, 5);
1242 DIS(fprintf (logfile, "orq %d, $r%d\n", imm, dc->op2));
1243 cris_cc_mask(dc, CC_MASK_NZ);
1244 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1245 t_gen_mov_TN_im(cpu_T[1], imm);
1246 crisv32_alu_op(dc, CC_OP_OR, dc->op2, 4);
1249 static unsigned int dec_btstq(DisasContext *dc)
1251 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 4);
1252 DIS(fprintf (logfile, "btstq %u, $r%d\n", dc->op1, dc->op2));
1253 cris_cc_mask(dc, CC_MASK_NZ);
1254 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1255 t_gen_mov_TN_im(cpu_T[1], dc->op1);
1256 crisv32_alu_op(dc, CC_OP_BTST, dc->op2, 4);
1258 cris_update_cc_op(dc, CC_OP_FLAGS, 4);
1259 t_gen_mov_preg_TN(PR_CCS, cpu_T[0]);
1263 static unsigned int dec_asrq(DisasContext *dc)
1265 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 4);
1266 DIS(fprintf (logfile, "asrq %u, $r%d\n", dc->op1, dc->op2));
1267 cris_cc_mask(dc, CC_MASK_NZ);
1268 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1269 t_gen_mov_TN_im(cpu_T[1], dc->op1);
1270 crisv32_alu_op(dc, CC_OP_ASR, dc->op2, 4);
1273 static unsigned int dec_lslq(DisasContext *dc)
1275 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 4);
1276 DIS(fprintf (logfile, "lslq %u, $r%d\n", dc->op1, dc->op2));
1278 cris_cc_mask(dc, CC_MASK_NZ);
1279 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1280 t_gen_mov_TN_im(cpu_T[1], dc->op1);
1281 crisv32_alu_op(dc, CC_OP_LSL, dc->op2, 4);
1284 static unsigned int dec_lsrq(DisasContext *dc)
1286 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 4);
1287 DIS(fprintf (logfile, "lsrq %u, $r%d\n", dc->op1, dc->op2));
1289 cris_cc_mask(dc, CC_MASK_NZ);
1290 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1291 t_gen_mov_TN_im(cpu_T[1], dc->op1);
1292 crisv32_alu_op(dc, CC_OP_LSR, dc->op2, 4);
1296 static unsigned int dec_move_r(DisasContext *dc)
1298 int size = memsize_zz(dc);
1300 DIS(fprintf (logfile, "move.%c $r%u, $r%u\n",
1301 memsize_char(size), dc->op1, dc->op2));
1303 cris_cc_mask(dc, CC_MASK_NZ);
1304 dec_prep_move_r(dc, dc->op1, dc->op2, size, 0);
1305 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, size);
1309 static unsigned int dec_scc_r(DisasContext *dc)
1313 DIS(fprintf (logfile, "s%s $r%u\n",
1314 cc_name(cond), dc->op1));
1318 gen_tst_cc (dc, cond);
1319 tcg_gen_mov_tl(cpu_T[1], cpu_T[0]);
1322 tcg_gen_movi_tl(cpu_T[1], 1);
1324 cris_cc_mask(dc, 0);
1325 crisv32_alu_op(dc, CC_OP_MOVE, dc->op1, 4);
1329 static unsigned int dec_and_r(DisasContext *dc)
1331 int size = memsize_zz(dc);
1333 DIS(fprintf (logfile, "and.%c $r%u, $r%u\n",
1334 memsize_char(size), dc->op1, dc->op2));
1335 cris_cc_mask(dc, CC_MASK_NZ);
1336 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1337 crisv32_alu_op(dc, CC_OP_AND, dc->op2, size);
1341 static unsigned int dec_lz_r(DisasContext *dc)
1343 DIS(fprintf (logfile, "lz $r%u, $r%u\n",
1345 cris_cc_mask(dc, CC_MASK_NZ);
1346 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1347 crisv32_alu_op(dc, CC_OP_LZ, dc->op2, 4);
1351 static unsigned int dec_lsl_r(DisasContext *dc)
1353 int size = memsize_zz(dc);
1355 DIS(fprintf (logfile, "lsl.%c $r%u, $r%u\n",
1356 memsize_char(size), dc->op1, dc->op2));
1357 cris_cc_mask(dc, CC_MASK_NZ);
1358 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1359 tcg_gen_andi_tl(cpu_T[1], cpu_T[1], 63);
1360 crisv32_alu_op(dc, CC_OP_LSL, dc->op2, size);
1364 static unsigned int dec_lsr_r(DisasContext *dc)
1366 int size = memsize_zz(dc);
1368 DIS(fprintf (logfile, "lsr.%c $r%u, $r%u\n",
1369 memsize_char(size), dc->op1, dc->op2));
1370 cris_cc_mask(dc, CC_MASK_NZ);
1371 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1372 tcg_gen_andi_tl(cpu_T[1], cpu_T[1], 63);
1373 crisv32_alu_op(dc, CC_OP_LSR, dc->op2, size);
1377 static unsigned int dec_asr_r(DisasContext *dc)
1379 int size = memsize_zz(dc);
1381 DIS(fprintf (logfile, "asr.%c $r%u, $r%u\n",
1382 memsize_char(size), dc->op1, dc->op2));
1383 cris_cc_mask(dc, CC_MASK_NZ);
1384 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 1);
1385 tcg_gen_andi_tl(cpu_T[1], cpu_T[1], 63);
1386 crisv32_alu_op(dc, CC_OP_ASR, dc->op2, size);
1390 static unsigned int dec_muls_r(DisasContext *dc)
1392 int size = memsize_zz(dc);
1394 DIS(fprintf (logfile, "muls.%c $r%u, $r%u\n",
1395 memsize_char(size), dc->op1, dc->op2));
1396 cris_cc_mask(dc, CC_MASK_NZV);
1397 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 1);
1398 t_gen_sext(cpu_T[0], cpu_T[0], size);
1399 crisv32_alu_op(dc, CC_OP_MULS, dc->op2, 4);
1403 static unsigned int dec_mulu_r(DisasContext *dc)
1405 int size = memsize_zz(dc);
1407 DIS(fprintf (logfile, "mulu.%c $r%u, $r%u\n",
1408 memsize_char(size), dc->op1, dc->op2));
1409 cris_cc_mask(dc, CC_MASK_NZV);
1410 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1411 t_gen_zext(cpu_T[0], cpu_T[0], size);
1412 crisv32_alu_op(dc, CC_OP_MULU, dc->op2, 4);
1417 static unsigned int dec_dstep_r(DisasContext *dc)
1419 DIS(fprintf (logfile, "dstep $r%u, $r%u\n", dc->op1, dc->op2));
1420 cris_cc_mask(dc, CC_MASK_NZ);
1421 t_gen_mov_TN_reg(cpu_T[1], dc->op1);
1422 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1423 crisv32_alu_op(dc, CC_OP_DSTEP, dc->op2, 4);
1427 static unsigned int dec_xor_r(DisasContext *dc)
1429 int size = memsize_zz(dc);
1430 DIS(fprintf (logfile, "xor.%c $r%u, $r%u\n",
1431 memsize_char(size), dc->op1, dc->op2));
1432 BUG_ON(size != 4); /* xor is dword. */
1433 cris_cc_mask(dc, CC_MASK_NZ);
1434 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1435 crisv32_alu_op(dc, CC_OP_XOR, dc->op2, 4);
1439 static unsigned int dec_bound_r(DisasContext *dc)
1441 int size = memsize_zz(dc);
1442 DIS(fprintf (logfile, "bound.%c $r%u, $r%u\n",
1443 memsize_char(size), dc->op1, dc->op2));
1444 cris_cc_mask(dc, CC_MASK_NZ);
1445 /* TODO: needs optmimization. */
1446 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1447 /* rd should be 4. */
1448 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1449 crisv32_alu_op(dc, CC_OP_BOUND, dc->op2, 4);
1453 static unsigned int dec_cmp_r(DisasContext *dc)
1455 int size = memsize_zz(dc);
1456 DIS(fprintf (logfile, "cmp.%c $r%u, $r%u\n",
1457 memsize_char(size), dc->op1, dc->op2));
1458 cris_cc_mask(dc, CC_MASK_NZVC);
1459 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1460 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, size);
1464 static unsigned int dec_abs_r(DisasContext *dc)
1468 DIS(fprintf (logfile, "abs $r%u, $r%u\n",
1470 cris_cc_mask(dc, CC_MASK_NZ);
1471 dec_prep_move_r(dc, dc->op1, dc->op2, 4, 0);
1473 /* TODO: consider a branch free approach. */
1474 l1 = gen_new_label();
1475 tcg_gen_brcond_tl(TCG_COND_GE, cpu_T[1], tcg_const_tl(0), l1);
1476 tcg_gen_sub_tl(cpu_T[1], tcg_const_tl(0), cpu_T[1]);
1478 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1482 static unsigned int dec_add_r(DisasContext *dc)
1484 int size = memsize_zz(dc);
1485 DIS(fprintf (logfile, "add.%c $r%u, $r%u\n",
1486 memsize_char(size), dc->op1, dc->op2));
1487 cris_cc_mask(dc, CC_MASK_NZVC);
1488 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1489 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, size);
1493 static unsigned int dec_addc_r(DisasContext *dc)
1495 DIS(fprintf (logfile, "addc $r%u, $r%u\n",
1497 cris_evaluate_flags(dc);
1498 cris_cc_mask(dc, CC_MASK_NZVC);
1499 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1500 crisv32_alu_op(dc, CC_OP_ADDC, dc->op2, 4);
1504 static unsigned int dec_mcp_r(DisasContext *dc)
1506 DIS(fprintf (logfile, "mcp $p%u, $r%u\n",
1508 cris_evaluate_flags(dc);
1509 cris_cc_mask(dc, CC_MASK_RNZV);
1510 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
1511 t_gen_mov_TN_preg(cpu_T[1], dc->op2);
1512 crisv32_alu_op(dc, CC_OP_MCP, dc->op1, 4);
1517 static char * swapmode_name(int mode, char *modename) {
1520 modename[i++] = 'n';
1522 modename[i++] = 'w';
1524 modename[i++] = 'b';
1526 modename[i++] = 'r';
1532 static unsigned int dec_swap_r(DisasContext *dc)
1534 DIS(char modename[4]);
1535 DIS(fprintf (logfile, "swap%s $r%u\n",
1536 swapmode_name(dc->op2, modename), dc->op1));
1538 cris_cc_mask(dc, CC_MASK_NZ);
1539 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
1541 tcg_gen_xori_tl(cpu_T[0], cpu_T[0], -1);
1543 t_gen_swapw(cpu_T[0], cpu_T[0]);
1545 t_gen_swapb(cpu_T[0], cpu_T[0]);
1547 t_gen_swapr(cpu_T[0], cpu_T[0]);
1548 tcg_gen_mov_tl(cpu_T[1], cpu_T[0]);
1549 crisv32_alu_op(dc, CC_OP_MOVE, dc->op1, 4);
1553 static unsigned int dec_or_r(DisasContext *dc)
1555 int size = memsize_zz(dc);
1556 DIS(fprintf (logfile, "or.%c $r%u, $r%u\n",
1557 memsize_char(size), dc->op1, dc->op2));
1558 cris_cc_mask(dc, CC_MASK_NZ);
1559 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1560 crisv32_alu_op(dc, CC_OP_OR, dc->op2, size);
1564 static unsigned int dec_addi_r(DisasContext *dc)
1566 DIS(fprintf (logfile, "addi.%c $r%u, $r%u\n",
1567 memsize_char(memsize_zz(dc)), dc->op2, dc->op1));
1568 cris_cc_mask(dc, 0);
1569 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1570 t_gen_lsl(cpu_T[0], cpu_T[0], tcg_const_tl(dc->zzsize));
1571 tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
1572 t_gen_mov_reg_TN(dc->op1, cpu_T[0]);
1576 static unsigned int dec_addi_acr(DisasContext *dc)
1578 DIS(fprintf (logfile, "addi.%c $r%u, $r%u, $acr\n",
1579 memsize_char(memsize_zz(dc)), dc->op2, dc->op1));
1580 cris_cc_mask(dc, 0);
1581 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1582 t_gen_lsl(cpu_T[0], cpu_T[0], tcg_const_tl(dc->zzsize));
1584 tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
1585 t_gen_mov_reg_TN(R_ACR, cpu_T[0]);
1589 static unsigned int dec_neg_r(DisasContext *dc)
1591 int size = memsize_zz(dc);
1592 DIS(fprintf (logfile, "neg.%c $r%u, $r%u\n",
1593 memsize_char(size), dc->op1, dc->op2));
1594 cris_cc_mask(dc, CC_MASK_NZVC);
1595 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1596 crisv32_alu_op(dc, CC_OP_NEG, dc->op2, size);
1600 static unsigned int dec_btst_r(DisasContext *dc)
1602 DIS(fprintf (logfile, "btst $r%u, $r%u\n",
1604 cris_cc_mask(dc, CC_MASK_NZ);
1605 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1606 crisv32_alu_op(dc, CC_OP_BTST, dc->op2, 4);
1608 cris_update_cc_op(dc, CC_OP_FLAGS, 4);
1609 t_gen_mov_preg_TN(PR_CCS, cpu_T[0]);
1614 static unsigned int dec_sub_r(DisasContext *dc)
1616 int size = memsize_zz(dc);
1617 DIS(fprintf (logfile, "sub.%c $r%u, $r%u\n",
1618 memsize_char(size), dc->op1, dc->op2));
1619 cris_cc_mask(dc, CC_MASK_NZVC);
1620 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1621 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, size);
1625 /* Zero extension. From size to dword. */
1626 static unsigned int dec_movu_r(DisasContext *dc)
1628 int size = memsize_z(dc);
1629 DIS(fprintf (logfile, "movu.%c $r%u, $r%u\n",
1633 cris_cc_mask(dc, CC_MASK_NZ);
1634 dec_prep_move_r(dc, dc->op1, dc->op2, size, 0);
1635 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1639 /* Sign extension. From size to dword. */
1640 static unsigned int dec_movs_r(DisasContext *dc)
1642 int size = memsize_z(dc);
1643 DIS(fprintf (logfile, "movs.%c $r%u, $r%u\n",
1647 cris_cc_mask(dc, CC_MASK_NZ);
1648 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
1649 /* Size can only be qi or hi. */
1650 t_gen_sext(cpu_T[1], cpu_T[0], size);
1651 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1655 /* zero extension. From size to dword. */
1656 static unsigned int dec_addu_r(DisasContext *dc)
1658 int size = memsize_z(dc);
1659 DIS(fprintf (logfile, "addu.%c $r%u, $r%u\n",
1663 cris_cc_mask(dc, CC_MASK_NZVC);
1664 t_gen_mov_TN_reg(cpu_T[1], dc->op1);
1665 /* Size can only be qi or hi. */
1666 t_gen_zext(cpu_T[1], cpu_T[1], size);
1667 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1668 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
1672 /* Sign extension. From size to dword. */
1673 static unsigned int dec_adds_r(DisasContext *dc)
1675 int size = memsize_z(dc);
1676 DIS(fprintf (logfile, "adds.%c $r%u, $r%u\n",
1680 cris_cc_mask(dc, CC_MASK_NZVC);
1681 t_gen_mov_TN_reg(cpu_T[1], dc->op1);
1682 /* Size can only be qi or hi. */
1683 t_gen_sext(cpu_T[1], cpu_T[1], size);
1684 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1686 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
1690 /* Zero extension. From size to dword. */
1691 static unsigned int dec_subu_r(DisasContext *dc)
1693 int size = memsize_z(dc);
1694 DIS(fprintf (logfile, "subu.%c $r%u, $r%u\n",
1698 cris_cc_mask(dc, CC_MASK_NZVC);
1699 t_gen_mov_TN_reg(cpu_T[1], dc->op1);
1700 /* Size can only be qi or hi. */
1701 t_gen_zext(cpu_T[1], cpu_T[1], size);
1702 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1703 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
1707 /* Sign extension. From size to dword. */
1708 static unsigned int dec_subs_r(DisasContext *dc)
1710 int size = memsize_z(dc);
1711 DIS(fprintf (logfile, "subs.%c $r%u, $r%u\n",
1715 cris_cc_mask(dc, CC_MASK_NZVC);
1716 t_gen_mov_TN_reg(cpu_T[1], dc->op1);
1717 /* Size can only be qi or hi. */
1718 t_gen_sext(cpu_T[1], cpu_T[1], size);
1719 t_gen_mov_TN_reg(cpu_T[0], dc->op2);
1720 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
1724 static unsigned int dec_setclrf(DisasContext *dc)
1727 int set = (~dc->opcode >> 2) & 1;
1729 flags = (EXTRACT_FIELD(dc->ir, 12, 15) << 4)
1730 | EXTRACT_FIELD(dc->ir, 0, 3);
1731 DIS(fprintf (logfile, "set=%d flags=%x\n", set, flags));
1732 if (set && flags == 0)
1733 DIS(fprintf (logfile, "nop\n"));
1734 else if (!set && (flags & 0x20))
1735 DIS(fprintf (logfile, "di\n"));
1737 DIS(fprintf (logfile, "%sf %x\n",
1738 set ? "set" : "clr",
1741 if (set && (flags & X_FLAG)) {
1746 /* Simply decode the flags. */
1747 cris_evaluate_flags (dc);
1748 cris_update_cc_op(dc, CC_OP_FLAGS, 4);
1749 tcg_gen_movi_tl(cc_op, dc->cc_op);
1760 static unsigned int dec_move_rs(DisasContext *dc)
1762 DIS(fprintf (logfile, "move $r%u, $s%u\n", dc->op1, dc->op2));
1763 cris_cc_mask(dc, 0);
1764 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
1765 gen_op_movl_sreg_T0(dc->op2);
1767 #if !defined(CONFIG_USER_ONLY)
1769 gen_op_movl_tlb_hi_T0();
1770 else if (dc->op2 == 5) { /* srs is checked at runtime. */
1771 tcg_gen_helper_0_1(helper_tlb_update, cpu_T[0]);
1772 gen_op_movl_tlb_lo_T0();
1777 static unsigned int dec_move_sr(DisasContext *dc)
1779 DIS(fprintf (logfile, "move $s%u, $r%u\n", dc->op2, dc->op1));
1780 cris_cc_mask(dc, 0);
1781 gen_op_movl_T0_sreg(dc->op2);
1782 tcg_gen_mov_tl(cpu_T[1], cpu_T[0]);
1783 crisv32_alu_op(dc, CC_OP_MOVE, dc->op1, 4);
1786 static unsigned int dec_move_rp(DisasContext *dc)
1788 DIS(fprintf (logfile, "move $r%u, $p%u\n", dc->op1, dc->op2));
1789 cris_cc_mask(dc, 0);
1791 if (dc->op2 == PR_CCS) {
1792 cris_evaluate_flags(dc);
1793 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
1795 /* User space is not allowed to touch all flags. */
1796 tcg_gen_andi_tl(cpu_T[0], cpu_T[0], 0x39f);
1797 tcg_gen_andi_tl(cpu_T[1], cpu_PR[PR_CCS], ~0x39f);
1798 tcg_gen_or_tl(cpu_T[0], cpu_T[1], cpu_T[0]);
1802 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
1804 t_gen_mov_preg_TN(dc->op2, cpu_T[0]);
1805 if (dc->op2 == PR_CCS) {
1806 cris_update_cc_op(dc, CC_OP_FLAGS, 4);
1811 static unsigned int dec_move_pr(DisasContext *dc)
1813 DIS(fprintf (logfile, "move $p%u, $r%u\n", dc->op1, dc->op2));
1814 cris_cc_mask(dc, 0);
1815 /* Support register 0 is hardwired to zero.
1816 Treat it specially. */
1818 tcg_gen_movi_tl(cpu_T[1], 0);
1819 else if (dc->op2 == PR_CCS) {
1820 cris_evaluate_flags(dc);
1821 t_gen_mov_TN_preg(cpu_T[1], dc->op2);
1823 t_gen_mov_TN_preg(cpu_T[1], dc->op2);
1824 crisv32_alu_op(dc, CC_OP_MOVE, dc->op1, preg_sizes[dc->op2]);
1828 static unsigned int dec_move_mr(DisasContext *dc)
1830 int memsize = memsize_zz(dc);
1832 DIS(fprintf (logfile, "move.%c [$r%u%s, $r%u\n",
1833 memsize_char(memsize),
1834 dc->op1, dc->postinc ? "+]" : "]",
1837 insn_len = dec_prep_alu_m(dc, 0, memsize);
1838 cris_cc_mask(dc, CC_MASK_NZ);
1839 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, memsize);
1840 do_postinc(dc, memsize);
1844 static unsigned int dec_movs_m(DisasContext *dc)
1846 int memsize = memsize_z(dc);
1848 DIS(fprintf (logfile, "movs.%c [$r%u%s, $r%u\n",
1849 memsize_char(memsize),
1850 dc->op1, dc->postinc ? "+]" : "]",
1854 insn_len = dec_prep_alu_m(dc, 1, memsize);
1855 cris_cc_mask(dc, CC_MASK_NZ);
1856 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1857 do_postinc(dc, memsize);
1861 static unsigned int dec_addu_m(DisasContext *dc)
1863 int memsize = memsize_z(dc);
1865 DIS(fprintf (logfile, "addu.%c [$r%u%s, $r%u\n",
1866 memsize_char(memsize),
1867 dc->op1, dc->postinc ? "+]" : "]",
1871 insn_len = dec_prep_alu_m(dc, 0, memsize);
1872 cris_cc_mask(dc, CC_MASK_NZVC);
1873 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
1874 do_postinc(dc, memsize);
1878 static unsigned int dec_adds_m(DisasContext *dc)
1880 int memsize = memsize_z(dc);
1882 DIS(fprintf (logfile, "adds.%c [$r%u%s, $r%u\n",
1883 memsize_char(memsize),
1884 dc->op1, dc->postinc ? "+]" : "]",
1888 insn_len = dec_prep_alu_m(dc, 1, memsize);
1889 cris_cc_mask(dc, CC_MASK_NZVC);
1890 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
1891 do_postinc(dc, memsize);
1895 static unsigned int dec_subu_m(DisasContext *dc)
1897 int memsize = memsize_z(dc);
1899 DIS(fprintf (logfile, "subu.%c [$r%u%s, $r%u\n",
1900 memsize_char(memsize),
1901 dc->op1, dc->postinc ? "+]" : "]",
1905 insn_len = dec_prep_alu_m(dc, 0, memsize);
1906 cris_cc_mask(dc, CC_MASK_NZVC);
1907 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
1908 do_postinc(dc, memsize);
1912 static unsigned int dec_subs_m(DisasContext *dc)
1914 int memsize = memsize_z(dc);
1916 DIS(fprintf (logfile, "subs.%c [$r%u%s, $r%u\n",
1917 memsize_char(memsize),
1918 dc->op1, dc->postinc ? "+]" : "]",
1922 insn_len = dec_prep_alu_m(dc, 1, memsize);
1923 cris_cc_mask(dc, CC_MASK_NZVC);
1924 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
1925 do_postinc(dc, memsize);
1929 static unsigned int dec_movu_m(DisasContext *dc)
1931 int memsize = memsize_z(dc);
1934 DIS(fprintf (logfile, "movu.%c [$r%u%s, $r%u\n",
1935 memsize_char(memsize),
1936 dc->op1, dc->postinc ? "+]" : "]",
1939 insn_len = dec_prep_alu_m(dc, 0, memsize);
1940 cris_cc_mask(dc, CC_MASK_NZ);
1941 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1942 do_postinc(dc, memsize);
1946 static unsigned int dec_cmpu_m(DisasContext *dc)
1948 int memsize = memsize_z(dc);
1950 DIS(fprintf (logfile, "cmpu.%c [$r%u%s, $r%u\n",
1951 memsize_char(memsize),
1952 dc->op1, dc->postinc ? "+]" : "]",
1955 insn_len = dec_prep_alu_m(dc, 0, memsize);
1956 cris_cc_mask(dc, CC_MASK_NZVC);
1957 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, 4);
1958 do_postinc(dc, memsize);
1962 static unsigned int dec_cmps_m(DisasContext *dc)
1964 int memsize = memsize_z(dc);
1966 DIS(fprintf (logfile, "cmps.%c [$r%u%s, $r%u\n",
1967 memsize_char(memsize),
1968 dc->op1, dc->postinc ? "+]" : "]",
1971 insn_len = dec_prep_alu_m(dc, 1, memsize);
1972 cris_cc_mask(dc, CC_MASK_NZVC);
1973 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, memsize_zz(dc));
1974 do_postinc(dc, memsize);
1978 static unsigned int dec_cmp_m(DisasContext *dc)
1980 int memsize = memsize_zz(dc);
1982 DIS(fprintf (logfile, "cmp.%c [$r%u%s, $r%u\n",
1983 memsize_char(memsize),
1984 dc->op1, dc->postinc ? "+]" : "]",
1987 insn_len = dec_prep_alu_m(dc, 0, memsize);
1988 cris_cc_mask(dc, CC_MASK_NZVC);
1989 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, memsize_zz(dc));
1990 do_postinc(dc, memsize);
1994 static unsigned int dec_test_m(DisasContext *dc)
1996 int memsize = memsize_zz(dc);
1998 DIS(fprintf (logfile, "test.%d [$r%u%s] op2=%x\n",
1999 memsize_char(memsize),
2000 dc->op1, dc->postinc ? "+]" : "]",
2003 insn_len = dec_prep_alu_m(dc, 0, memsize);
2004 cris_cc_mask(dc, CC_MASK_NZ);
2007 tcg_gen_mov_tl(cpu_T[0], cpu_T[1]);
2008 tcg_gen_movi_tl(cpu_T[1], 0);
2009 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, memsize_zz(dc));
2010 do_postinc(dc, memsize);
2014 static unsigned int dec_and_m(DisasContext *dc)
2016 int memsize = memsize_zz(dc);
2018 DIS(fprintf (logfile, "and.%d [$r%u%s, $r%u\n",
2019 memsize_char(memsize),
2020 dc->op1, dc->postinc ? "+]" : "]",
2023 insn_len = dec_prep_alu_m(dc, 0, memsize);
2024 cris_cc_mask(dc, CC_MASK_NZ);
2025 crisv32_alu_op(dc, CC_OP_AND, dc->op2, memsize_zz(dc));
2026 do_postinc(dc, memsize);
2030 static unsigned int dec_add_m(DisasContext *dc)
2032 int memsize = memsize_zz(dc);
2034 DIS(fprintf (logfile, "add.%d [$r%u%s, $r%u\n",
2035 memsize_char(memsize),
2036 dc->op1, dc->postinc ? "+]" : "]",
2039 insn_len = dec_prep_alu_m(dc, 0, memsize);
2040 cris_cc_mask(dc, CC_MASK_NZVC);
2041 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, memsize_zz(dc));
2042 do_postinc(dc, memsize);
2046 static unsigned int dec_addo_m(DisasContext *dc)
2048 int memsize = memsize_zz(dc);
2050 DIS(fprintf (logfile, "add.%d [$r%u%s, $r%u\n",
2051 memsize_char(memsize),
2052 dc->op1, dc->postinc ? "+]" : "]",
2055 insn_len = dec_prep_alu_m(dc, 1, memsize);
2056 cris_cc_mask(dc, 0);
2057 crisv32_alu_op(dc, CC_OP_ADD, R_ACR, 4);
2058 do_postinc(dc, memsize);
2062 static unsigned int dec_bound_m(DisasContext *dc)
2064 int memsize = memsize_zz(dc);
2066 DIS(fprintf (logfile, "bound.%d [$r%u%s, $r%u\n",
2067 memsize_char(memsize),
2068 dc->op1, dc->postinc ? "+]" : "]",
2071 insn_len = dec_prep_alu_m(dc, 0, memsize);
2072 cris_cc_mask(dc, CC_MASK_NZ);
2073 crisv32_alu_op(dc, CC_OP_BOUND, dc->op2, 4);
2074 do_postinc(dc, memsize);
2078 static unsigned int dec_addc_mr(DisasContext *dc)
2081 DIS(fprintf (logfile, "addc [$r%u%s, $r%u\n",
2082 dc->op1, dc->postinc ? "+]" : "]",
2085 cris_evaluate_flags(dc);
2086 insn_len = dec_prep_alu_m(dc, 0, 4);
2087 cris_cc_mask(dc, CC_MASK_NZVC);
2088 crisv32_alu_op(dc, CC_OP_ADDC, dc->op2, 4);
2093 static unsigned int dec_sub_m(DisasContext *dc)
2095 int memsize = memsize_zz(dc);
2097 DIS(fprintf (logfile, "sub.%c [$r%u%s, $r%u ir=%x zz=%x\n",
2098 memsize_char(memsize),
2099 dc->op1, dc->postinc ? "+]" : "]",
2100 dc->op2, dc->ir, dc->zzsize));
2102 insn_len = dec_prep_alu_m(dc, 0, memsize);
2103 cris_cc_mask(dc, CC_MASK_NZVC);
2104 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, memsize);
2105 do_postinc(dc, memsize);
2109 static unsigned int dec_or_m(DisasContext *dc)
2111 int memsize = memsize_zz(dc);
2113 DIS(fprintf (logfile, "or.%d [$r%u%s, $r%u pc=%x\n",
2114 memsize_char(memsize),
2115 dc->op1, dc->postinc ? "+]" : "]",
2118 insn_len = dec_prep_alu_m(dc, 0, memsize);
2119 cris_cc_mask(dc, CC_MASK_NZ);
2120 crisv32_alu_op(dc, CC_OP_OR, dc->op2, memsize_zz(dc));
2121 do_postinc(dc, memsize);
2125 static unsigned int dec_move_mp(DisasContext *dc)
2127 int memsize = memsize_zz(dc);
2130 DIS(fprintf (logfile, "move.%c [$r%u%s, $p%u\n",
2131 memsize_char(memsize),
2133 dc->postinc ? "+]" : "]",
2136 insn_len = dec_prep_alu_m(dc, 0, memsize);
2137 cris_cc_mask(dc, 0);
2138 if (dc->op2 == PR_CCS) {
2139 cris_evaluate_flags(dc);
2141 /* User space is not allowed to touch all flags. */
2142 tcg_gen_andi_tl(cpu_T[1], cpu_T[1], 0x39f);
2143 tcg_gen_andi_tl(cpu_T[0], cpu_PR[PR_CCS], ~0x39f);
2144 tcg_gen_or_tl(cpu_T[1], cpu_T[0], cpu_T[1]);
2148 t_gen_mov_preg_TN(dc->op2, cpu_T[1]);
2150 do_postinc(dc, memsize);
2154 static unsigned int dec_move_pm(DisasContext *dc)
2158 memsize = preg_sizes[dc->op2];
2160 DIS(fprintf (logfile, "move.%c $p%u, [$r%u%s\n",
2161 memsize_char(memsize),
2162 dc->op2, dc->op1, dc->postinc ? "+]" : "]"));
2164 /* prepare store. Address in T0, value in T1. */
2165 t_gen_mov_TN_preg(cpu_T[1], dc->op2);
2166 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
2167 gen_store_T0_T1(dc, memsize);
2168 cris_cc_mask(dc, 0);
2171 tcg_gen_addi_tl(cpu_T[0], cpu_T[0], memsize);
2172 t_gen_mov_reg_TN(dc->op1, cpu_T[0]);
2177 static unsigned int dec_movem_mr(DisasContext *dc)
2181 DIS(fprintf (logfile, "movem [$r%u%s, $r%u\n", dc->op1,
2182 dc->postinc ? "+]" : "]", dc->op2));
2184 /* fetch the address into T0 and T1. */
2185 t_gen_mov_TN_reg(cpu_T[1], dc->op1);
2186 for (i = 0; i <= dc->op2; i++) {
2187 /* Perform the load onto regnum i. Always dword wide. */
2188 tcg_gen_mov_tl(cpu_T[0], cpu_T[1]);
2189 gen_load(dc, cpu_R[i], cpu_T[1], 4, 0);
2190 tcg_gen_addi_tl(cpu_T[1], cpu_T[1], 4);
2192 /* writeback the updated pointer value. */
2194 t_gen_mov_reg_TN(dc->op1, cpu_T[1]);
2196 /* gen_load might want to evaluate the previous insns flags. */
2197 cris_cc_mask(dc, 0);
2201 static unsigned int dec_movem_rm(DisasContext *dc)
2205 DIS(fprintf (logfile, "movem $r%u, [$r%u%s\n", dc->op2, dc->op1,
2206 dc->postinc ? "+]" : "]"));
2208 for (i = 0; i <= dc->op2; i++) {
2209 /* Fetch register i into T1. */
2210 t_gen_mov_TN_reg(cpu_T[1], i);
2211 /* Fetch the address into T0. */
2212 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
2214 tcg_gen_addi_tl(cpu_T[0], cpu_T[0], i * 4);
2215 /* Perform the store. */
2216 gen_store_T0_T1(dc, 4);
2219 /* T0 should point to the last written addr, advance one more
2221 tcg_gen_addi_tl(cpu_T[0], cpu_T[0], 4);
2222 /* writeback the updated pointer value. */
2223 t_gen_mov_reg_TN(dc->op1, cpu_T[0]);
2225 cris_cc_mask(dc, 0);
2229 static unsigned int dec_move_rm(DisasContext *dc)
2233 memsize = memsize_zz(dc);
2235 DIS(fprintf (logfile, "move.%d $r%u, [$r%u]\n",
2236 memsize, dc->op2, dc->op1));
2238 /* prepare store. */
2239 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
2240 t_gen_mov_TN_reg(cpu_T[1], dc->op2);
2241 gen_store_T0_T1(dc, memsize);
2244 tcg_gen_addi_tl(cpu_T[0], cpu_T[0], memsize);
2245 t_gen_mov_reg_TN(dc->op1, cpu_T[0]);
2247 cris_cc_mask(dc, 0);
2251 static unsigned int dec_lapcq(DisasContext *dc)
2253 DIS(fprintf (logfile, "lapcq %x, $r%u\n",
2254 dc->pc + dc->op1*2, dc->op2));
2255 cris_cc_mask(dc, 0);
2256 tcg_gen_movi_tl(cpu_T[1], dc->pc + dc->op1 * 2);
2257 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
2261 static unsigned int dec_lapc_im(DisasContext *dc)
2269 cris_cc_mask(dc, 0);
2270 imm = ldl_code(dc->pc + 2);
2271 DIS(fprintf (logfile, "lapc 0x%x, $r%u\n", imm + dc->pc, dc->op2));
2275 t_gen_mov_reg_TN(rd, tcg_const_tl(pc));
2279 /* Jump to special reg. */
2280 static unsigned int dec_jump_p(DisasContext *dc)
2282 DIS(fprintf (logfile, "jump $p%u\n", dc->op2));
2283 cris_cc_mask(dc, 0);
2285 t_gen_mov_TN_preg(cpu_T[0], dc->op2);
2286 /* rete will often have low bit set to indicate delayslot. */
2287 tcg_gen_andi_tl(env_btarget, cpu_T[0], ~1);
2288 cris_prepare_dyn_jmp(dc);
2292 /* Jump and save. */
2293 static unsigned int dec_jas_r(DisasContext *dc)
2295 DIS(fprintf (logfile, "jas $r%u, $p%u\n", dc->op1, dc->op2));
2296 cris_cc_mask(dc, 0);
2297 /* Store the return address in Pd. */
2298 tcg_gen_mov_tl(env_btarget, cpu_R[dc->op1]);
2301 tcg_gen_movi_tl(cpu_PR[dc->op2], dc->pc + 4);
2303 cris_prepare_dyn_jmp(dc);
2307 static unsigned int dec_jas_im(DisasContext *dc)
2311 imm = ldl_code(dc->pc + 2);
2313 DIS(fprintf (logfile, "jas 0x%x\n", imm));
2314 cris_cc_mask(dc, 0);
2315 /* Stor the return address in Pd. */
2316 tcg_gen_movi_tl(env_btarget, imm);
2317 t_gen_mov_preg_TN(dc->op2, tcg_const_tl(dc->pc + 8));
2318 cris_prepare_dyn_jmp(dc);
2322 static unsigned int dec_jasc_im(DisasContext *dc)
2326 imm = ldl_code(dc->pc + 2);
2328 DIS(fprintf (logfile, "jasc 0x%x\n", imm));
2329 cris_cc_mask(dc, 0);
2330 /* Stor the return address in Pd. */
2331 tcg_gen_movi_tl(cpu_T[0], imm);
2332 t_gen_mov_env_TN(btarget, cpu_T[0]);
2333 tcg_gen_movi_tl(cpu_T[0], dc->pc + 8 + 4);
2334 t_gen_mov_preg_TN(dc->op2, cpu_T[0]);
2335 cris_prepare_dyn_jmp(dc);
2339 static unsigned int dec_jasc_r(DisasContext *dc)
2341 DIS(fprintf (logfile, "jasc_r $r%u, $p%u\n", dc->op1, dc->op2));
2342 cris_cc_mask(dc, 0);
2343 /* Stor the return address in Pd. */
2344 t_gen_mov_TN_reg(cpu_T[0], dc->op1);
2345 t_gen_mov_env_TN(btarget, cpu_T[0]);
2346 tcg_gen_movi_tl(cpu_T[0], dc->pc + 4 + 4);
2347 t_gen_mov_preg_TN(dc->op2, cpu_T[0]);
2348 cris_prepare_dyn_jmp(dc);
2352 static unsigned int dec_bcc_im(DisasContext *dc)
2355 uint32_t cond = dc->op2;
2357 offset = ldl_code(dc->pc + 2);
2358 offset = sign_extend(offset, 15);
2360 DIS(fprintf (logfile, "b%s %d pc=%x dst=%x\n",
2361 cc_name(cond), offset,
2362 dc->pc, dc->pc + offset));
2364 cris_cc_mask(dc, 0);
2365 /* op2 holds the condition-code. */
2366 cris_prepare_cc_branch (dc, offset, cond);
2370 static unsigned int dec_bas_im(DisasContext *dc)
2375 simm = ldl_code(dc->pc + 2);
2377 DIS(fprintf (logfile, "bas 0x%x, $p%u\n", dc->pc + simm, dc->op2));
2378 cris_cc_mask(dc, 0);
2379 /* Stor the return address in Pd. */
2380 tcg_gen_movi_tl(cpu_T[0], dc->pc + simm);
2381 t_gen_mov_env_TN(btarget, cpu_T[0]);
2382 tcg_gen_movi_tl(cpu_T[0], dc->pc + 8);
2383 t_gen_mov_preg_TN(dc->op2, cpu_T[0]);
2384 cris_prepare_dyn_jmp(dc);
2388 static unsigned int dec_basc_im(DisasContext *dc)
2391 simm = ldl_code(dc->pc + 2);
2393 DIS(fprintf (logfile, "basc 0x%x, $p%u\n", dc->pc + simm, dc->op2));
2394 cris_cc_mask(dc, 0);
2395 /* Stor the return address in Pd. */
2396 tcg_gen_movi_tl(cpu_T[0], dc->pc + simm);
2397 t_gen_mov_env_TN(btarget, cpu_T[0]);
2398 tcg_gen_movi_tl(cpu_T[0], dc->pc + 12);
2399 t_gen_mov_preg_TN(dc->op2, cpu_T[0]);
2400 cris_prepare_dyn_jmp(dc);
2404 static unsigned int dec_rfe_etc(DisasContext *dc)
2406 DIS(fprintf (logfile, "rfe_etc opc=%x pc=0x%x op1=%d op2=%d\n",
2407 dc->opcode, dc->pc, dc->op1, dc->op2));
2409 cris_cc_mask(dc, 0);
2411 if (dc->op2 == 15) /* ignore halt. */
2414 switch (dc->op2 & 7) {
2417 cris_evaluate_flags(dc);
2418 gen_op_ccs_rshift();
2419 /* FIXME: don't set the P-FLAG if R is set. */
2420 tcg_gen_ori_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], P_FLAG);
2422 tcg_gen_helper_0_0(helper_rfe);
2423 dc->is_jmp = DISAS_UPDATE;
2431 tcg_gen_movi_tl(cpu_T[0], dc->pc);
2432 t_gen_mov_env_TN(pc, cpu_T[0]);
2433 /* Breaks start at 16 in the exception vector. */
2434 gen_op_break_im(dc->op1 + 16);
2435 dc->is_jmp = DISAS_UPDATE;
2438 printf ("op2=%x\n", dc->op2);
2446 static unsigned int dec_ftag_fidx_d_m(DisasContext *dc)
2448 /* Ignore D-cache flushes. */
2452 static unsigned int dec_ftag_fidx_i_m(DisasContext *dc)
2454 /* Ignore I-cache flushes. */
2458 static unsigned int dec_null(DisasContext *dc)
2460 printf ("unknown insn pc=%x opc=%x op1=%x op2=%x\n",
2461 dc->pc, dc->opcode, dc->op1, dc->op2);
2467 struct decoder_info {
2472 unsigned int (*dec)(DisasContext *dc);
2474 /* Order matters here. */
2475 {DEC_MOVEQ, dec_moveq},
2476 {DEC_BTSTQ, dec_btstq},
2477 {DEC_CMPQ, dec_cmpq},
2478 {DEC_ADDOQ, dec_addoq},
2479 {DEC_ADDQ, dec_addq},
2480 {DEC_SUBQ, dec_subq},
2481 {DEC_ANDQ, dec_andq},
2483 {DEC_ASRQ, dec_asrq},
2484 {DEC_LSLQ, dec_lslq},
2485 {DEC_LSRQ, dec_lsrq},
2486 {DEC_BCCQ, dec_bccq},
2488 {DEC_BCC_IM, dec_bcc_im},
2489 {DEC_JAS_IM, dec_jas_im},
2490 {DEC_JAS_R, dec_jas_r},
2491 {DEC_JASC_IM, dec_jasc_im},
2492 {DEC_JASC_R, dec_jasc_r},
2493 {DEC_BAS_IM, dec_bas_im},
2494 {DEC_BASC_IM, dec_basc_im},
2495 {DEC_JUMP_P, dec_jump_p},
2496 {DEC_LAPC_IM, dec_lapc_im},
2497 {DEC_LAPCQ, dec_lapcq},
2499 {DEC_RFE_ETC, dec_rfe_etc},
2500 {DEC_ADDC_MR, dec_addc_mr},
2502 {DEC_MOVE_MP, dec_move_mp},
2503 {DEC_MOVE_PM, dec_move_pm},
2504 {DEC_MOVEM_MR, dec_movem_mr},
2505 {DEC_MOVEM_RM, dec_movem_rm},
2506 {DEC_MOVE_PR, dec_move_pr},
2507 {DEC_SCC_R, dec_scc_r},
2508 {DEC_SETF, dec_setclrf},
2509 {DEC_CLEARF, dec_setclrf},
2511 {DEC_MOVE_SR, dec_move_sr},
2512 {DEC_MOVE_RP, dec_move_rp},
2513 {DEC_SWAP_R, dec_swap_r},
2514 {DEC_ABS_R, dec_abs_r},
2515 {DEC_LZ_R, dec_lz_r},
2516 {DEC_MOVE_RS, dec_move_rs},
2517 {DEC_BTST_R, dec_btst_r},
2518 {DEC_ADDC_R, dec_addc_r},
2520 {DEC_DSTEP_R, dec_dstep_r},
2521 {DEC_XOR_R, dec_xor_r},
2522 {DEC_MCP_R, dec_mcp_r},
2523 {DEC_CMP_R, dec_cmp_r},
2525 {DEC_ADDI_R, dec_addi_r},
2526 {DEC_ADDI_ACR, dec_addi_acr},
2528 {DEC_ADD_R, dec_add_r},
2529 {DEC_SUB_R, dec_sub_r},
2531 {DEC_ADDU_R, dec_addu_r},
2532 {DEC_ADDS_R, dec_adds_r},
2533 {DEC_SUBU_R, dec_subu_r},
2534 {DEC_SUBS_R, dec_subs_r},
2535 {DEC_LSL_R, dec_lsl_r},
2537 {DEC_AND_R, dec_and_r},
2538 {DEC_OR_R, dec_or_r},
2539 {DEC_BOUND_R, dec_bound_r},
2540 {DEC_ASR_R, dec_asr_r},
2541 {DEC_LSR_R, dec_lsr_r},
2543 {DEC_MOVU_R, dec_movu_r},
2544 {DEC_MOVS_R, dec_movs_r},
2545 {DEC_NEG_R, dec_neg_r},
2546 {DEC_MOVE_R, dec_move_r},
2548 {DEC_FTAG_FIDX_I_M, dec_ftag_fidx_i_m},
2549 {DEC_FTAG_FIDX_D_M, dec_ftag_fidx_d_m},
2551 {DEC_MULS_R, dec_muls_r},
2552 {DEC_MULU_R, dec_mulu_r},
2554 {DEC_ADDU_M, dec_addu_m},
2555 {DEC_ADDS_M, dec_adds_m},
2556 {DEC_SUBU_M, dec_subu_m},
2557 {DEC_SUBS_M, dec_subs_m},
2559 {DEC_CMPU_M, dec_cmpu_m},
2560 {DEC_CMPS_M, dec_cmps_m},
2561 {DEC_MOVU_M, dec_movu_m},
2562 {DEC_MOVS_M, dec_movs_m},
2564 {DEC_CMP_M, dec_cmp_m},
2565 {DEC_ADDO_M, dec_addo_m},
2566 {DEC_BOUND_M, dec_bound_m},
2567 {DEC_ADD_M, dec_add_m},
2568 {DEC_SUB_M, dec_sub_m},
2569 {DEC_AND_M, dec_and_m},
2570 {DEC_OR_M, dec_or_m},
2571 {DEC_MOVE_RM, dec_move_rm},
2572 {DEC_TEST_M, dec_test_m},
2573 {DEC_MOVE_MR, dec_move_mr},
2578 static inline unsigned int
2579 cris_decoder(DisasContext *dc)
2581 unsigned int insn_len = 2;
2585 /* Load a halfword onto the instruction register. */
2586 tmp = ldl_code(dc->pc);
2587 dc->ir = tmp & 0xffff;
2589 /* Now decode it. */
2590 dc->opcode = EXTRACT_FIELD(dc->ir, 4, 11);
2591 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 3);
2592 dc->op2 = EXTRACT_FIELD(dc->ir, 12, 15);
2593 dc->zsize = EXTRACT_FIELD(dc->ir, 4, 4);
2594 dc->zzsize = EXTRACT_FIELD(dc->ir, 4, 5);
2595 dc->postinc = EXTRACT_FIELD(dc->ir, 10, 10);
2597 /* Large switch for all insns. */
2598 for (i = 0; i < sizeof decinfo / sizeof decinfo[0]; i++) {
2599 if ((dc->opcode & decinfo[i].mask) == decinfo[i].bits)
2601 insn_len = decinfo[i].dec(dc);
2609 static void check_breakpoint(CPUState *env, DisasContext *dc)
2612 if (env->nb_breakpoints > 0) {
2613 for(j = 0; j < env->nb_breakpoints; j++) {
2614 if (env->breakpoints[j] == dc->pc) {
2615 cris_evaluate_flags (dc);
2616 tcg_gen_movi_tl(cpu_T[0], dc->pc);
2617 t_gen_mov_env_TN(pc, cpu_T[0]);
2619 dc->is_jmp = DISAS_UPDATE;
2625 /* generate intermediate code for basic block 'tb'. */
2626 struct DisasContext ctx;
2628 gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb,
2631 uint16_t *gen_opc_end;
2633 unsigned int insn_len;
2635 struct DisasContext *dc = &ctx;
2636 uint32_t next_page_start;
2642 cpu_abort(env, "unaligned pc=%x erp=%x\n",
2643 env->pc, env->pregs[PR_ERP]);
2648 gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
2650 dc->is_jmp = DISAS_NEXT;
2653 dc->singlestep_enabled = env->singlestep_enabled;
2658 cris_update_cc_op(dc, CC_OP_FLAGS, 4);
2660 dc->user = env->pregs[PR_CCS] & U_FLAG;
2661 dc->delayed_branch = 0;
2663 if (loglevel & CPU_LOG_TB_IN_ASM) {
2665 "search=%d pc=%x ccs=%x pid=%x usp=%x\n"
2670 search_pc, env->pc, env->pregs[PR_CCS],
2671 env->pregs[PR_PID], env->pregs[PR_USP],
2672 env->regs[0], env->regs[1], env->regs[2], env->regs[3],
2673 env->regs[4], env->regs[5], env->regs[6], env->regs[7],
2674 env->regs[8], env->regs[9],
2675 env->regs[10], env->regs[11],
2676 env->regs[12], env->regs[13],
2677 env->regs[14], env->regs[15]);
2681 next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
2685 check_breakpoint(env, dc);
2686 if (dc->is_jmp == DISAS_JUMP
2687 || dc->is_jmp == DISAS_SWI)
2691 j = gen_opc_ptr - gen_opc_buf;
2695 gen_opc_instr_start[lj++] = 0;
2697 if (dc->delayed_branch == 1) {
2698 gen_opc_pc[lj] = dc->ppc | 1;
2699 gen_opc_instr_start[lj] = 0;
2702 gen_opc_pc[lj] = dc->pc;
2703 gen_opc_instr_start[lj] = 1;
2708 insn_len = cris_decoder(dc);
2709 STATS(gen_op_exec_insn());
2713 cris_clear_x_flag(dc);
2715 /* Check for delayed branches here. If we do it before
2716 actually genereating any host code, the simulator will just
2717 loop doing nothing for on this program location. */
2718 if (dc->delayed_branch) {
2719 dc->delayed_branch--;
2720 if (dc->delayed_branch == 0)
2722 if (dc->bcc == CC_A) {
2724 dc->is_jmp = DISAS_JUMP;
2727 /* Conditional jmp. */
2728 gen_op_cc_jmp (dc->delayed_pc, dc->pc);
2729 dc->is_jmp = DISAS_JUMP;
2734 if (env->singlestep_enabled)
2736 } while (!dc->is_jmp && gen_opc_ptr < gen_opc_end
2737 && ((dc->pc < next_page_start) || dc->delayed_branch));
2739 if (dc->delayed_branch == 1) {
2740 /* Reexecute the last insn. */
2745 D(printf("!jmp pc=%x jmp=%d db=%d\n", dc->pc,
2746 dc->is_jmp, dc->delayed_branch));
2747 /* T0 and env_pc should hold the new pc. */
2748 tcg_gen_movi_tl(cpu_T[0], dc->pc);
2749 tcg_gen_mov_tl(env_pc, cpu_T[0]);
2752 cris_evaluate_flags (dc);
2754 if (__builtin_expect(env->singlestep_enabled, 0)) {
2757 switch(dc->is_jmp) {
2759 gen_goto_tb(dc, 1, dc->pc);
2764 /* indicate that the hash table must be used
2765 to find the next TB */
2770 /* nothing more to generate */
2774 *gen_opc_ptr = INDEX_op_end;
2776 j = gen_opc_ptr - gen_opc_buf;
2779 gen_opc_instr_start[lj++] = 0;
2781 tb->size = dc->pc - pc_start;
2785 if (loglevel & CPU_LOG_TB_IN_ASM) {
2786 fprintf(logfile, "--------------\n");
2787 fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
2788 target_disas(logfile, pc_start, dc->pc + 4 - pc_start, 0);
2789 fprintf(logfile, "\nisize=%d osize=%d\n",
2790 dc->pc - pc_start, gen_opc_ptr - gen_opc_buf);
2796 int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb)
2798 return gen_intermediate_code_internal(env, tb, 0);
2801 int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb)
2803 return gen_intermediate_code_internal(env, tb, 1);
2806 void cpu_dump_state (CPUState *env, FILE *f,
2807 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
2816 cpu_fprintf(f, "PC=%x CCS=%x btaken=%d btarget=%x\n"
2817 "cc_op=%d cc_src=%d cc_dest=%d cc_result=%x cc_mask=%x\n"
2819 env->pc, env->pregs[PR_CCS], env->btaken, env->btarget,
2821 env->cc_src, env->cc_dest, env->cc_result, env->cc_mask,
2822 env->debug1, env->debug2, env->debug3);
2824 for (i = 0; i < 16; i++) {
2825 cpu_fprintf(f, "r%2.2d=%8.8x ", i, env->regs[i]);
2826 if ((i + 1) % 4 == 0)
2827 cpu_fprintf(f, "\n");
2829 cpu_fprintf(f, "\nspecial regs:\n");
2830 for (i = 0; i < 16; i++) {
2831 cpu_fprintf(f, "p%2.2d=%8.8x ", i, env->pregs[i]);
2832 if ((i + 1) % 4 == 0)
2833 cpu_fprintf(f, "\n");
2835 srs = env->pregs[PR_SRS];
2836 cpu_fprintf(f, "\nsupport function regs bank %x:\n", srs);
2838 for (i = 0; i < 16; i++) {
2839 cpu_fprintf(f, "s%2.2d=%8.8x ",
2840 i, env->sregs[srs][i]);
2841 if ((i + 1) % 4 == 0)
2842 cpu_fprintf(f, "\n");
2845 cpu_fprintf(f, "\n\n");
2849 static void tcg_macro_func(TCGContext *s, int macro_id, const int *dead_args)
2853 CPUCRISState *cpu_cris_init (const char *cpu_model)
2858 env = qemu_mallocz(sizeof(CPUCRISState));
2863 tcg_set_macro_func(&tcg_ctx, tcg_macro_func);
2864 cpu_env = tcg_global_reg_new(TCG_TYPE_PTR, TCG_AREG0, "env");
2865 #if TARGET_LONG_BITS > HOST_LONG_BITS
2866 cpu_T[0] = tcg_global_mem_new(TCG_TYPE_TL,
2867 TCG_AREG0, offsetof(CPUState, t0), "T0");
2868 cpu_T[1] = tcg_global_mem_new(TCG_TYPE_TL,
2869 TCG_AREG0, offsetof(CPUState, t1), "T1");
2871 cpu_T[0] = tcg_global_reg_new(TCG_TYPE_TL, TCG_AREG1, "T0");
2872 cpu_T[1] = tcg_global_reg_new(TCG_TYPE_TL, TCG_AREG2, "T1");
2875 cc_src = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2876 offsetof(CPUState, cc_src), "cc_src");
2877 cc_dest = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2878 offsetof(CPUState, cc_dest),
2880 cc_result = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2881 offsetof(CPUState, cc_result),
2883 cc_op = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2884 offsetof(CPUState, cc_op), "cc_op");
2885 cc_size = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2886 offsetof(CPUState, cc_size),
2888 cc_mask = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2889 offsetof(CPUState, cc_mask),
2892 env_pc = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2893 offsetof(CPUState, pc),
2895 env_btarget = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2896 offsetof(CPUState, btarget),
2899 for (i = 0; i < 16; i++) {
2900 cpu_R[i] = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2901 offsetof(CPUState, regs[i]),
2904 for (i = 0; i < 16; i++) {
2905 cpu_PR[i] = tcg_global_mem_new(TCG_TYPE_PTR, TCG_AREG0,
2906 offsetof(CPUState, pregs[i]),
2910 TCG_HELPER(helper_tlb_update);
2911 TCG_HELPER(helper_tlb_flush);
2912 TCG_HELPER(helper_rfe);
2913 TCG_HELPER(helper_store);
2914 TCG_HELPER(helper_dump);
2915 TCG_HELPER(helper_dummy);
2917 TCG_HELPER(helper_evaluate_flags_muls);
2918 TCG_HELPER(helper_evaluate_flags_mulu);
2919 TCG_HELPER(helper_evaluate_flags_mcp);
2920 TCG_HELPER(helper_evaluate_flags_alu_4);
2921 TCG_HELPER(helper_evaluate_flags_move_4);
2922 TCG_HELPER(helper_evaluate_flags_move_2);
2923 TCG_HELPER(helper_evaluate_flags);
2929 void cpu_reset (CPUCRISState *env)
2931 memset(env, 0, offsetof(CPUCRISState, breakpoints));
2934 #if defined(CONFIG_USER_ONLY)
2935 /* start in user mode with interrupts enabled. */
2936 env->pregs[PR_CCS] |= U_FLAG | I_FLAG;
2938 env->pregs[PR_CCS] = 0;
2942 void gen_pc_load(CPUState *env, struct TranslationBlock *tb,
2943 unsigned long searched_pc, int pc_pos, void *puc)
2945 env->pc = gen_opc_pc[pc_pos];