2 * CRIS emulation for qemu: main translation routines.
4 * Copyright (c) 2007 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
23 * This file implements a CRIS decoder-stage in SW. The decoder translates the
24 * guest (CRIS) machine-code into host machine code via dyngen using the
25 * micro-operations described in op.c
27 * The micro-operations for CRIS translation implement a RISC style ISA.
28 * Note that the micro-operations typically order their operands
29 * starting with the dst. CRIS asm, does the opposite.
31 * For example the following CRIS code:
36 * gen_movl_T0_reg(0); // Fetch $r0 into T0
37 * gen_load_T0_T0(); // Load T0, @T0
38 * gen_movl_reg_T0(1); // Writeback T0 into $r1
40 * The actual names for the micro-code generators vary but the example
41 * illustrates the point.
54 #include "crisv32-decode.h"
70 #ifdef USE_DIRECT_JUMP
73 #define TBPARAM(x) (long)(x)
76 #define BUG() (gen_BUG(dc, __FILE__, __LINE__))
77 #define BUG_ON(x) ({if (x) BUG();})
79 /* Used by the decoder. */
80 #define EXTRACT_FIELD(src, start, end) \
81 (((src) >> start) & ((1 << (end - start + 1)) - 1))
83 #define CC_MASK_NZ 0xc
84 #define CC_MASK_NZV 0xe
85 #define CC_MASK_NZVC 0xf
86 #define CC_MASK_RNZV 0x10e
88 static uint16_t *gen_opc_ptr;
89 static uint32_t *gen_opparam_ptr;
92 #define DEF(s, n, copy_size) INDEX_op_ ## s,
99 /* This is the state at translation time. */
100 typedef struct DisasContext {
102 target_ulong pc, insn_pc;
109 unsigned int zsize, zzsize;
111 unsigned int postinc;
120 uint32_t tb_entry_flags;
122 int memidx; /* user or kernel mode. */
131 struct TranslationBlock *tb;
132 int singlestep_enabled;
135 void cris_prepare_jmp (DisasContext *dc, uint32_t dst);
136 static void gen_BUG(DisasContext *dc, char *file, int line)
138 printf ("BUG: pc=%x %s %d\n", dc->pc, file, line);
139 fprintf (logfile, "BUG: pc=%x %s %d\n", dc->pc, file, line);
140 cpu_dump_state (dc->env, stdout, fprintf, 0);
142 cris_prepare_jmp (dc, 0x70000000 + line);
145 /* Table to generate quick moves from T0 onto any register. */
146 static GenOpFunc *gen_movl_reg_T0[16] =
148 gen_op_movl_r0_T0, gen_op_movl_r1_T0,
149 gen_op_movl_r2_T0, gen_op_movl_r3_T0,
150 gen_op_movl_r4_T0, gen_op_movl_r5_T0,
151 gen_op_movl_r6_T0, gen_op_movl_r7_T0,
152 gen_op_movl_r8_T0, gen_op_movl_r9_T0,
153 gen_op_movl_r10_T0, gen_op_movl_r11_T0,
154 gen_op_movl_r12_T0, gen_op_movl_r13_T0,
155 gen_op_movl_r14_T0, gen_op_movl_r15_T0,
157 static GenOpFunc *gen_movl_T0_reg[16] =
159 gen_op_movl_T0_r0, gen_op_movl_T0_r1,
160 gen_op_movl_T0_r2, gen_op_movl_T0_r3,
161 gen_op_movl_T0_r4, gen_op_movl_T0_r5,
162 gen_op_movl_T0_r6, gen_op_movl_T0_r7,
163 gen_op_movl_T0_r8, gen_op_movl_T0_r9,
164 gen_op_movl_T0_r10, gen_op_movl_T0_r11,
165 gen_op_movl_T0_r12, gen_op_movl_T0_r13,
166 gen_op_movl_T0_r14, gen_op_movl_T0_r15,
169 static void noop_write(void) {
173 static void gen_vr_read(void) {
174 gen_op_movl_T0_im(32);
177 static void gen_movl_T0_p0(void) {
178 gen_op_movl_T0_im(0);
181 static void gen_ccs_read(void) {
182 gen_op_movl_T0_p13();
185 static void gen_ccs_write(void) {
186 gen_op_movl_p13_T0();
189 /* Table to generate quick moves from T0 onto any register. */
190 static GenOpFunc *gen_movl_preg_T0[16] =
192 noop_write, /* bz, not writeable. */
193 noop_write, /* vr, not writeable. */
194 gen_op_movl_p2_T0, gen_op_movl_p3_T0,
195 noop_write, /* wz, not writeable. */
197 gen_op_movl_p6_T0, gen_op_movl_p7_T0,
198 noop_write, /* dz, not writeable. */
200 gen_op_movl_p10_T0, gen_op_movl_p11_T0,
202 gen_ccs_write, /* ccs needs special treatment. */
203 gen_op_movl_p14_T0, gen_op_movl_p15_T0,
205 static GenOpFunc *gen_movl_T0_preg[16] =
209 gen_op_movl_T0_p2, gen_op_movl_T0_p3,
210 gen_op_movl_T0_p4, gen_op_movl_T0_p5,
211 gen_op_movl_T0_p6, gen_op_movl_T0_p7,
212 gen_op_movl_T0_p8, gen_op_movl_T0_p9,
213 gen_op_movl_T0_p10, gen_op_movl_T0_p11,
215 gen_ccs_read, /* ccs needs special treatment. */
216 gen_op_movl_T0_p14, gen_op_movl_T0_p15,
219 /* We need this table to handle moves with implicit width. */
231 #ifdef CONFIG_USER_ONLY
232 #define GEN_OP_LD(width, reg) \
233 void gen_op_ld##width##_T0_##reg (DisasContext *dc) { \
234 gen_op_ld##width##_T0_##reg##_raw(); \
236 #define GEN_OP_ST(width, reg) \
237 void gen_op_st##width##_##reg##_T1 (DisasContext *dc) { \
238 gen_op_st##width##_##reg##_T1_raw(); \
241 #define GEN_OP_LD(width, reg) \
242 void gen_op_ld##width##_T0_##reg (DisasContext *dc) { \
243 if (dc->memidx) gen_op_ld##width##_T0_##reg##_kernel(); \
244 else gen_op_ld##width##_T0_##reg##_user();\
246 #define GEN_OP_ST(width, reg) \
247 void gen_op_st##width##_##reg##_T1 (DisasContext *dc) { \
248 if (dc->memidx) gen_op_st##width##_##reg##_T1_kernel(); \
249 else gen_op_st##width##_##reg##_T1_user();\
262 static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
264 TranslationBlock *tb;
266 if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
268 gen_op_goto_tb0(TBPARAM(tb));
270 gen_op_goto_tb1(TBPARAM(tb));
278 /* Sign extend at translation time. */
279 static int sign_extend(unsigned int val, unsigned int width)
291 static void cris_evaluate_flags(DisasContext *dc)
293 if (!dc->flags_live) {
298 gen_op_evaluate_flags_mcp ();
301 gen_op_evaluate_flags_muls ();
304 gen_op_evaluate_flags_mulu ();
310 gen_op_evaluate_flags_move_4();
313 gen_op_evaluate_flags_move_2();
316 gen_op_evaluate_flags ();
326 gen_op_evaluate_flags_alu_4 ();
329 gen_op_evaluate_flags ();
339 static void cris_cc_mask(DisasContext *dc, unsigned int mask)
343 /* Check if we need to evaluate the condition codes due to
345 ovl = (dc->cc_mask ^ mask) & ~mask;
347 /* TODO: optimize this case. It trigs all the time. */
348 cris_evaluate_flags (dc);
356 gen_op_update_cc_mask(mask);
361 static void cris_update_cc_op(DisasContext *dc, int op)
364 gen_op_update_cc_op(op);
367 static void cris_update_cc_size(DisasContext *dc, int size)
370 gen_op_update_cc_size_im(size);
373 /* op is the operation.
374 T0, T1 are the operands.
375 dst is the destination reg.
377 static void crisv32_alu_op(DisasContext *dc, int op, int rd, int size)
381 cris_update_cc_op(dc, op);
382 cris_update_cc_size(dc, size);
383 gen_op_update_cc_x(dc->flagx_live, dc->flags_x);
384 gen_op_update_cc_dest_T0();
387 /* Emit the ALU insns. */
392 /* Extended arithmetics. */
395 else if (dc->flags_x)
409 /* CRIS flag evaluation needs ~src. */
413 /* Extended arithmetics. */
416 else if (dc->flags_x)
442 /* Extended arithmetics. */
459 gen_op_dstep_T0_T1();
462 gen_op_bound_T0_T1();
467 /* CRIS flag evaluation needs ~src. */
471 /* Extended arithmetics. */
476 fprintf (logfile, "illegal ALU op.\n");
482 gen_op_update_cc_src_T1();
485 gen_op_andl_T0_im(0xff);
487 gen_op_andl_T0_im(0xffff);
491 gen_movl_reg_T0[rd]();
494 gen_movl_T0_reg[rd]();
496 gen_op_andl_T0_im(~0xff);
498 gen_op_andl_T0_im(~0xffff);
500 gen_movl_reg_T0[rd]();
505 gen_op_update_cc_result_T0();
508 /* TODO: Optimize this. */
510 cris_evaluate_flags(dc);
514 static int arith_cc(DisasContext *dc)
518 case CC_OP_ADD: return 1;
519 case CC_OP_SUB: return 1;
520 case CC_OP_LSL: return 1;
521 case CC_OP_LSR: return 1;
522 case CC_OP_ASR: return 1;
523 case CC_OP_CMP: return 1;
531 static void gen_tst_cc (DisasContext *dc, int cond)
535 /* TODO: optimize more condition codes. */
536 arith_opt = arith_cc(dc) && !dc->flags_live;
540 gen_op_tst_cc_eq_fast ();
542 cris_evaluate_flags(dc);
548 gen_op_tst_cc_ne_fast ();
550 cris_evaluate_flags(dc);
555 cris_evaluate_flags(dc);
559 cris_evaluate_flags(dc);
563 cris_evaluate_flags(dc);
567 cris_evaluate_flags(dc);
572 gen_op_tst_cc_pl_fast ();
574 cris_evaluate_flags(dc);
580 gen_op_tst_cc_mi_fast ();
582 cris_evaluate_flags(dc);
587 cris_evaluate_flags(dc);
591 cris_evaluate_flags(dc);
595 cris_evaluate_flags(dc);
599 cris_evaluate_flags(dc);
603 cris_evaluate_flags(dc);
607 cris_evaluate_flags(dc);
611 cris_evaluate_flags(dc);
615 cris_evaluate_flags(dc);
616 gen_op_movl_T0_im (1);
624 static void cris_prepare_cc_branch (DisasContext *dc, int offset, int cond)
626 /* This helps us re-schedule the micro-code to insns in delay-slots
627 before the actual jump. */
628 dc->delayed_branch = 2;
629 dc->delayed_pc = dc->pc + offset;
633 gen_tst_cc (dc, cond);
634 gen_op_evaluate_bcc ();
636 gen_op_movl_T0_im (dc->delayed_pc);
637 gen_op_movl_btarget_T0 ();
640 /* Dynamic jumps, when the dest is in a live reg for example. */
641 void cris_prepare_dyn_jmp (DisasContext *dc)
643 /* This helps us re-schedule the micro-code to insns in delay-slots
644 before the actual jump. */
645 dc->delayed_branch = 2;
650 void cris_prepare_jmp (DisasContext *dc, uint32_t dst)
652 /* This helps us re-schedule the micro-code to insns in delay-slots
653 before the actual jump. */
654 dc->delayed_branch = 2;
655 dc->delayed_pc = dst;
660 void gen_load_T0_T0 (DisasContext *dc, unsigned int size, int sign)
664 gen_op_ldb_T0_T0(dc);
666 gen_op_ldub_T0_T0(dc);
668 else if (size == 2) {
670 gen_op_ldw_T0_T0(dc);
672 gen_op_lduw_T0_T0(dc);
675 gen_op_ldl_T0_T0(dc);
679 void gen_store_T0_T1 (DisasContext *dc, unsigned int size)
681 /* Remember, operands are flipped. CRIS has reversed order. */
683 gen_op_stb_T0_T1(dc);
685 else if (size == 2) {
686 gen_op_stw_T0_T1(dc);
689 gen_op_stl_T0_T1(dc);
692 /* sign extend T1 according to size. */
693 static void gen_sext_T1_T0(int size)
701 static void gen_sext_T1_T1(int size)
709 static void gen_sext_T0_T0(int size)
717 static void gen_zext_T0_T0(int size)
720 gen_op_zextb_T0_T0();
722 gen_op_zextw_T0_T0();
725 static void gen_zext_T1_T0(int size)
728 gen_op_zextb_T1_T0();
730 gen_op_zextw_T1_T0();
733 static void gen_zext_T1_T1(int size)
736 gen_op_zextb_T1_T1();
738 gen_op_zextw_T1_T1();
742 static char memsize_char(int size)
746 case 1: return 'b'; break;
747 case 2: return 'w'; break;
748 case 4: return 'd'; break;
756 static unsigned int memsize_z(DisasContext *dc)
758 return dc->zsize + 1;
761 static unsigned int memsize_zz(DisasContext *dc)
772 static void do_postinc (DisasContext *dc, int size)
776 gen_movl_T0_reg[dc->op1]();
777 gen_op_addl_T0_im(size);
778 gen_movl_reg_T0[dc->op1]();
782 static void dec_prep_move_r(DisasContext *dc, int rs, int rd,
785 gen_movl_T0_reg[rs]();
788 gen_sext_T1_T1(size);
790 gen_zext_T1_T1(size);
793 /* Prepare T0 and T1 for a register alu operation.
794 s_ext decides if the operand1 should be sign-extended or zero-extended when
796 static void dec_prep_alu_r(DisasContext *dc, int rs, int rd,
799 dec_prep_move_r(dc, rs, rd, size, s_ext);
801 gen_movl_T0_reg[rd]();
803 gen_sext_T0_T0(size);
805 gen_zext_T0_T0(size);
808 /* Prepare T0 and T1 for a memory + alu operation.
809 s_ext decides if the operand1 should be sign-extended or zero-extended when
811 static int dec_prep_alu_m(DisasContext *dc, int s_ext, int memsize)
820 is_imm = rs == 15 && dc->postinc;
822 /* Load [$rs] onto T1. */
824 insn_len = 2 + memsize;
828 imm = ldl_code(dc->pc + 2);
831 imm = sign_extend(imm, (memsize * 8) - 1);
839 DIS(fprintf (logfile, "imm=%x rd=%d sext=%d ms=%d\n",
840 imm, rd, s_ext, memsize));
841 gen_op_movl_T1_im (imm);
844 gen_movl_T0_reg[rs]();
845 gen_load_T0_T0(dc, memsize, 0);
848 gen_sext_T1_T1(memsize);
850 gen_zext_T1_T1(memsize);
853 /* put dest in T0. */
854 gen_movl_T0_reg[rd]();
859 static const char *cc_name(int cc)
861 static char *cc_names[16] = {
862 "cc", "cs", "ne", "eq", "vc", "vs", "pl", "mi",
863 "ls", "hi", "ge", "lt", "gt", "le", "a", "p"
870 static unsigned int dec_bccq(DisasContext *dc)
874 uint32_t cond = dc->op2;
877 offset = EXTRACT_FIELD (dc->ir, 1, 7);
878 sign = EXTRACT_FIELD(dc->ir, 0, 0);
883 offset = sign_extend(offset, 8);
885 /* op2 holds the condition-code. */
887 cris_prepare_cc_branch (dc, offset, cond);
890 static unsigned int dec_addoq(DisasContext *dc)
894 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 7);
895 imm = sign_extend(dc->op1, 7);
897 DIS(fprintf (logfile, "addoq %d, $r%u\n", imm, dc->op2));
899 /* Fetch register operand, */
900 gen_movl_T0_reg[dc->op2]();
901 gen_op_movl_T1_im(imm);
902 crisv32_alu_op(dc, CC_OP_ADD, REG_ACR, 4);
905 static unsigned int dec_addq(DisasContext *dc)
907 DIS(fprintf (logfile, "addq %u, $r%u\n", dc->op1, dc->op2));
909 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
911 cris_cc_mask(dc, CC_MASK_NZVC);
912 /* Fetch register operand, */
913 gen_movl_T0_reg[dc->op2]();
914 gen_op_movl_T1_im(dc->op1);
915 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
918 static unsigned int dec_moveq(DisasContext *dc)
922 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
923 imm = sign_extend(dc->op1, 5);
924 DIS(fprintf (logfile, "moveq %d, $r%u\n", imm, dc->op2));
927 gen_op_movl_T1_im(imm);
928 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
932 static unsigned int dec_subq(DisasContext *dc)
934 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
936 DIS(fprintf (logfile, "subq %u, $r%u\n", dc->op1, dc->op2));
938 cris_cc_mask(dc, CC_MASK_NZVC);
939 /* Fetch register operand, */
940 gen_movl_T0_reg[dc->op2]();
941 gen_op_movl_T1_im(dc->op1);
942 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
945 static unsigned int dec_cmpq(DisasContext *dc)
948 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
949 imm = sign_extend(dc->op1, 5);
951 DIS(fprintf (logfile, "cmpq %d, $r%d\n", imm, dc->op2));
952 cris_cc_mask(dc, CC_MASK_NZVC);
953 gen_movl_T0_reg[dc->op2]();
954 gen_op_movl_T1_im(imm);
955 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, 4);
958 static unsigned int dec_andq(DisasContext *dc)
961 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
962 imm = sign_extend(dc->op1, 5);
964 DIS(fprintf (logfile, "andq %d, $r%d\n", imm, dc->op2));
965 cris_cc_mask(dc, CC_MASK_NZ);
966 gen_movl_T0_reg[dc->op2]();
967 gen_op_movl_T1_im(imm);
968 crisv32_alu_op(dc, CC_OP_AND, dc->op2, 4);
971 static unsigned int dec_orq(DisasContext *dc)
974 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
975 imm = sign_extend(dc->op1, 5);
976 DIS(fprintf (logfile, "orq %d, $r%d\n", imm, dc->op2));
977 cris_cc_mask(dc, CC_MASK_NZ);
978 gen_movl_T0_reg[dc->op2]();
979 gen_op_movl_T1_im(imm);
980 crisv32_alu_op(dc, CC_OP_OR, dc->op2, 4);
983 static unsigned int dec_btstq(DisasContext *dc)
985 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 4);
986 DIS(fprintf (logfile, "btstq %u, $r%d\n", dc->op1, dc->op2));
987 cris_cc_mask(dc, CC_MASK_NZ);
988 gen_movl_T0_reg[dc->op2]();
989 gen_op_movl_T1_im(dc->op1);
990 crisv32_alu_op(dc, CC_OP_BTST, dc->op2, 4);
992 cris_update_cc_op(dc, CC_OP_FLAGS);
993 gen_op_movl_flags_T0();
997 static unsigned int dec_asrq(DisasContext *dc)
999 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 4);
1000 DIS(fprintf (logfile, "asrq %u, $r%d\n", dc->op1, dc->op2));
1001 cris_cc_mask(dc, CC_MASK_NZ);
1002 gen_movl_T0_reg[dc->op2]();
1003 gen_op_movl_T1_im(dc->op1);
1004 crisv32_alu_op(dc, CC_OP_ASR, dc->op2, 4);
1007 static unsigned int dec_lslq(DisasContext *dc)
1009 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 4);
1010 DIS(fprintf (logfile, "lslq %u, $r%d\n", dc->op1, dc->op2));
1012 cris_cc_mask(dc, CC_MASK_NZ);
1013 gen_movl_T0_reg[dc->op2]();
1014 gen_op_movl_T1_im(dc->op1);
1015 crisv32_alu_op(dc, CC_OP_LSL, dc->op2, 4);
1018 static unsigned int dec_lsrq(DisasContext *dc)
1020 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 4);
1021 DIS(fprintf (logfile, "lsrq %u, $r%d\n", dc->op1, dc->op2));
1023 cris_cc_mask(dc, CC_MASK_NZ);
1024 gen_movl_T0_reg[dc->op2]();
1025 gen_op_movl_T1_im(dc->op1);
1026 crisv32_alu_op(dc, CC_OP_LSR, dc->op2, 4);
1030 static unsigned int dec_move_r(DisasContext *dc)
1032 int size = memsize_zz(dc);
1034 DIS(fprintf (logfile, "move.%c $r%u, $r%u\n",
1035 memsize_char(size), dc->op1, dc->op2));
1037 cris_cc_mask(dc, CC_MASK_NZ);
1038 dec_prep_move_r(dc, dc->op1, dc->op2, size, 0);
1039 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, size);
1043 static unsigned int dec_scc_r(DisasContext *dc)
1047 DIS(fprintf (logfile, "s%s $r%u\n",
1048 cc_name(cond), dc->op1));
1052 gen_tst_cc (dc, cond);
1053 gen_op_movl_T1_T0();
1056 gen_op_movl_T1_im(1);
1058 cris_cc_mask(dc, 0);
1059 crisv32_alu_op(dc, CC_OP_MOVE, dc->op1, 4);
1063 static unsigned int dec_and_r(DisasContext *dc)
1065 int size = memsize_zz(dc);
1067 DIS(fprintf (logfile, "and.%c $r%u, $r%u\n",
1068 memsize_char(size), dc->op1, dc->op2));
1069 cris_cc_mask(dc, CC_MASK_NZ);
1070 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1071 crisv32_alu_op(dc, CC_OP_AND, dc->op2, size);
1075 static unsigned int dec_lz_r(DisasContext *dc)
1077 DIS(fprintf (logfile, "lz $r%u, $r%u\n",
1079 cris_cc_mask(dc, CC_MASK_NZ);
1080 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1081 crisv32_alu_op(dc, CC_OP_LZ, dc->op2, 4);
1085 static unsigned int dec_lsl_r(DisasContext *dc)
1087 int size = memsize_zz(dc);
1089 DIS(fprintf (logfile, "lsl.%c $r%u, $r%u\n",
1090 memsize_char(size), dc->op1, dc->op2));
1091 cris_cc_mask(dc, CC_MASK_NZ);
1092 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1093 gen_op_andl_T1_im(63);
1094 crisv32_alu_op(dc, CC_OP_LSL, dc->op2, size);
1098 static unsigned int dec_lsr_r(DisasContext *dc)
1100 int size = memsize_zz(dc);
1102 DIS(fprintf (logfile, "lsr.%c $r%u, $r%u\n",
1103 memsize_char(size), dc->op1, dc->op2));
1104 cris_cc_mask(dc, CC_MASK_NZ);
1105 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1106 gen_op_andl_T1_im(63);
1107 crisv32_alu_op(dc, CC_OP_LSR, dc->op2, size);
1111 static unsigned int dec_asr_r(DisasContext *dc)
1113 int size = memsize_zz(dc);
1115 DIS(fprintf (logfile, "asr.%c $r%u, $r%u\n",
1116 memsize_char(size), dc->op1, dc->op2));
1117 cris_cc_mask(dc, CC_MASK_NZ);
1118 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 1);
1119 gen_op_andl_T1_im(63);
1120 crisv32_alu_op(dc, CC_OP_ASR, dc->op2, size);
1124 static unsigned int dec_muls_r(DisasContext *dc)
1126 int size = memsize_zz(dc);
1128 DIS(fprintf (logfile, "muls.%c $r%u, $r%u\n",
1129 memsize_char(size), dc->op1, dc->op2));
1130 cris_cc_mask(dc, CC_MASK_NZV);
1131 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 1);
1132 gen_sext_T0_T0(size);
1133 crisv32_alu_op(dc, CC_OP_MULS, dc->op2, 4);
1137 static unsigned int dec_mulu_r(DisasContext *dc)
1139 int size = memsize_zz(dc);
1141 DIS(fprintf (logfile, "mulu.%c $r%u, $r%u\n",
1142 memsize_char(size), dc->op1, dc->op2));
1143 cris_cc_mask(dc, CC_MASK_NZV);
1144 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1145 gen_zext_T0_T0(size);
1146 crisv32_alu_op(dc, CC_OP_MULU, dc->op2, 4);
1151 static unsigned int dec_dstep_r(DisasContext *dc)
1153 DIS(fprintf (logfile, "dstep $r%u, $r%u\n", dc->op1, dc->op2));
1154 cris_cc_mask(dc, CC_MASK_NZ);
1155 gen_movl_T0_reg[dc->op1]();
1156 gen_op_movl_T1_T0();
1157 gen_movl_T0_reg[dc->op2]();
1158 crisv32_alu_op(dc, CC_OP_DSTEP, dc->op2, 4);
1162 static unsigned int dec_xor_r(DisasContext *dc)
1164 int size = memsize_zz(dc);
1165 DIS(fprintf (logfile, "xor.%c $r%u, $r%u\n",
1166 memsize_char(size), dc->op1, dc->op2));
1167 BUG_ON(size != 4); /* xor is dword. */
1168 cris_cc_mask(dc, CC_MASK_NZ);
1169 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1170 crisv32_alu_op(dc, CC_OP_XOR, dc->op2, 4);
1174 static unsigned int dec_bound_r(DisasContext *dc)
1176 int size = memsize_zz(dc);
1177 DIS(fprintf (logfile, "bound.%c $r%u, $r%u\n",
1178 memsize_char(size), dc->op1, dc->op2));
1179 cris_cc_mask(dc, CC_MASK_NZ);
1180 /* TODO: needs optmimization. */
1181 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1182 /* rd should be 4. */
1183 gen_movl_T0_reg[dc->op2]();
1184 crisv32_alu_op(dc, CC_OP_BOUND, dc->op2, 4);
1188 static unsigned int dec_cmp_r(DisasContext *dc)
1190 int size = memsize_zz(dc);
1191 DIS(fprintf (logfile, "cmp.%c $r%u, $r%u\n",
1192 memsize_char(size), dc->op1, dc->op2));
1193 cris_cc_mask(dc, CC_MASK_NZVC);
1194 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1195 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, size);
1199 static unsigned int dec_abs_r(DisasContext *dc)
1201 DIS(fprintf (logfile, "abs $r%u, $r%u\n",
1203 cris_cc_mask(dc, CC_MASK_NZ);
1204 dec_prep_move_r(dc, dc->op1, dc->op2, 4, 0);
1205 gen_op_absl_T1_T1();
1206 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1210 static unsigned int dec_add_r(DisasContext *dc)
1212 int size = memsize_zz(dc);
1213 DIS(fprintf (logfile, "add.%c $r%u, $r%u\n",
1214 memsize_char(size), dc->op1, dc->op2));
1215 cris_cc_mask(dc, CC_MASK_NZVC);
1216 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1217 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, size);
1221 static unsigned int dec_addc_r(DisasContext *dc)
1223 DIS(fprintf (logfile, "addc $r%u, $r%u\n",
1225 cris_evaluate_flags(dc);
1226 cris_cc_mask(dc, CC_MASK_NZVC);
1227 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1228 crisv32_alu_op(dc, CC_OP_ADDC, dc->op2, 4);
1232 static unsigned int dec_mcp_r(DisasContext *dc)
1234 DIS(fprintf (logfile, "mcp $p%u, $r%u\n",
1236 cris_evaluate_flags(dc);
1237 cris_cc_mask(dc, CC_MASK_RNZV);
1238 gen_movl_T0_preg[dc->op2]();
1239 gen_op_movl_T1_T0();
1240 gen_movl_T0_reg[dc->op1]();
1241 crisv32_alu_op(dc, CC_OP_MCP, dc->op1, 4);
1246 static char * swapmode_name(int mode, char *modename) {
1249 modename[i++] = 'n';
1251 modename[i++] = 'w';
1253 modename[i++] = 'b';
1255 modename[i++] = 'r';
1261 static unsigned int dec_swap_r(DisasContext *dc)
1263 DIS(char modename[4]);
1264 DIS(fprintf (logfile, "swap%s $r%u\n",
1265 swapmode_name(dc->op2, modename), dc->op1));
1267 cris_cc_mask(dc, CC_MASK_NZ);
1268 gen_movl_T0_reg[dc->op1]();
1272 gen_op_swapw_T0_T0();
1274 gen_op_swapb_T0_T0();
1276 gen_op_swapr_T0_T0();
1277 gen_op_movl_T1_T0();
1278 crisv32_alu_op(dc, CC_OP_MOVE, dc->op1, 4);
1282 static unsigned int dec_or_r(DisasContext *dc)
1284 int size = memsize_zz(dc);
1285 DIS(fprintf (logfile, "or.%c $r%u, $r%u\n",
1286 memsize_char(size), dc->op1, dc->op2));
1287 cris_cc_mask(dc, CC_MASK_NZ);
1288 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1289 crisv32_alu_op(dc, CC_OP_OR, dc->op2, size);
1293 static unsigned int dec_addi_r(DisasContext *dc)
1295 DIS(fprintf (logfile, "addi.%c $r%u, $r%u\n",
1296 memsize_char(memsize_zz(dc)), dc->op2, dc->op1));
1297 cris_cc_mask(dc, 0);
1298 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1299 gen_op_lsll_T0_im(dc->zzsize);
1300 gen_op_addl_T0_T1();
1301 gen_movl_reg_T0[dc->op1]();
1305 static unsigned int dec_addi_acr(DisasContext *dc)
1307 DIS(fprintf (logfile, "addi.%c $r%u, $r%u, $acr\n",
1308 memsize_char(memsize_zz(dc)), dc->op2, dc->op1));
1309 cris_cc_mask(dc, 0);
1310 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1311 gen_op_lsll_T0_im(dc->zzsize);
1312 gen_op_addl_T0_T1();
1313 gen_movl_reg_T0[REG_ACR]();
1317 static unsigned int dec_neg_r(DisasContext *dc)
1319 int size = memsize_zz(dc);
1320 DIS(fprintf (logfile, "neg.%c $r%u, $r%u\n",
1321 memsize_char(size), dc->op1, dc->op2));
1322 cris_cc_mask(dc, CC_MASK_NZVC);
1323 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1324 crisv32_alu_op(dc, CC_OP_NEG, dc->op2, size);
1328 static unsigned int dec_btst_r(DisasContext *dc)
1330 DIS(fprintf (logfile, "btst $r%u, $r%u\n",
1332 cris_cc_mask(dc, CC_MASK_NZ);
1333 dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
1334 crisv32_alu_op(dc, CC_OP_BTST, dc->op2, 4);
1336 cris_update_cc_op(dc, CC_OP_FLAGS);
1337 gen_op_movl_flags_T0();
1342 static unsigned int dec_sub_r(DisasContext *dc)
1344 int size = memsize_zz(dc);
1345 DIS(fprintf (logfile, "sub.%c $r%u, $r%u\n",
1346 memsize_char(size), dc->op1, dc->op2));
1347 cris_cc_mask(dc, CC_MASK_NZVC);
1348 dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
1349 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, size);
1353 /* Zero extension. From size to dword. */
1354 static unsigned int dec_movu_r(DisasContext *dc)
1356 int size = memsize_z(dc);
1357 DIS(fprintf (logfile, "movu.%c $r%u, $r%u\n",
1361 cris_cc_mask(dc, CC_MASK_NZ);
1362 dec_prep_move_r(dc, dc->op1, dc->op2, size, 0);
1363 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1367 /* Sign extension. From size to dword. */
1368 static unsigned int dec_movs_r(DisasContext *dc)
1370 int size = memsize_z(dc);
1371 DIS(fprintf (logfile, "movs.%c $r%u, $r%u\n",
1375 cris_cc_mask(dc, CC_MASK_NZ);
1376 gen_movl_T0_reg[dc->op1]();
1377 /* Size can only be qi or hi. */
1378 gen_sext_T1_T0(size);
1379 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1383 /* zero extension. From size to dword. */
1384 static unsigned int dec_addu_r(DisasContext *dc)
1386 int size = memsize_z(dc);
1387 DIS(fprintf (logfile, "addu.%c $r%u, $r%u\n",
1391 cris_cc_mask(dc, CC_MASK_NZVC);
1392 gen_movl_T0_reg[dc->op1]();
1393 /* Size can only be qi or hi. */
1394 gen_zext_T1_T0(size);
1395 gen_movl_T0_reg[dc->op2]();
1396 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
1399 /* Sign extension. From size to dword. */
1400 static unsigned int dec_adds_r(DisasContext *dc)
1402 int size = memsize_z(dc);
1403 DIS(fprintf (logfile, "adds.%c $r%u, $r%u\n",
1407 cris_cc_mask(dc, CC_MASK_NZVC);
1408 gen_movl_T0_reg[dc->op1]();
1409 /* Size can only be qi or hi. */
1410 gen_sext_T1_T0(size);
1411 gen_movl_T0_reg[dc->op2]();
1412 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
1416 /* Zero extension. From size to dword. */
1417 static unsigned int dec_subu_r(DisasContext *dc)
1419 int size = memsize_z(dc);
1420 DIS(fprintf (logfile, "subu.%c $r%u, $r%u\n",
1424 cris_cc_mask(dc, CC_MASK_NZVC);
1425 gen_movl_T0_reg[dc->op1]();
1426 /* Size can only be qi or hi. */
1427 gen_zext_T1_T0(size);
1428 gen_movl_T0_reg[dc->op2]();
1429 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
1433 /* Sign extension. From size to dword. */
1434 static unsigned int dec_subs_r(DisasContext *dc)
1436 int size = memsize_z(dc);
1437 DIS(fprintf (logfile, "subs.%c $r%u, $r%u\n",
1441 cris_cc_mask(dc, CC_MASK_NZVC);
1442 gen_movl_T0_reg[dc->op1]();
1443 /* Size can only be qi or hi. */
1444 gen_sext_T1_T0(size);
1445 gen_movl_T0_reg[dc->op2]();
1446 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
1450 static unsigned int dec_setclrf(DisasContext *dc)
1453 int set = (~dc->opcode >> 2) & 1;
1455 flags = (EXTRACT_FIELD(dc->ir, 12, 15) << 4)
1456 | EXTRACT_FIELD(dc->ir, 0, 3);
1457 DIS(fprintf (logfile, "set=%d flags=%x\n", set, flags));
1458 if (set && flags == 0)
1459 DIS(fprintf (logfile, "nop\n"));
1460 else if (!set && (flags & 0x20))
1461 DIS(fprintf (logfile, "di\n"));
1463 DIS(fprintf (logfile, "%sf %x\n",
1464 set ? "set" : "clr",
1467 if (set && (flags & X_FLAG)) {
1472 /* Simply decode the flags. */
1473 cris_evaluate_flags (dc);
1474 cris_update_cc_op(dc, CC_OP_FLAGS);
1476 gen_op_setf (flags);
1478 gen_op_clrf (flags);
1483 static unsigned int dec_move_rs(DisasContext *dc)
1485 DIS(fprintf (logfile, "move $r%u, $s%u\n", dc->op1, dc->op2));
1486 cris_cc_mask(dc, 0);
1487 gen_movl_T0_reg[dc->op1]();
1488 gen_op_movl_sreg_T0(dc->op2);
1490 if (dc->op2 == 5) /* srs is checked at runtime. */
1491 gen_op_movl_tlb_lo_T0();
1494 static unsigned int dec_move_sr(DisasContext *dc)
1496 DIS(fprintf (logfile, "move $s%u, $r%u\n", dc->op1, dc->op2));
1497 cris_cc_mask(dc, 0);
1498 gen_op_movl_T0_sreg(dc->op1);
1499 gen_op_movl_T1_T0();
1500 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1503 static unsigned int dec_move_rp(DisasContext *dc)
1505 DIS(fprintf (logfile, "move $r%u, $p%u\n", dc->op1, dc->op2));
1506 cris_cc_mask(dc, 0);
1507 gen_movl_T0_reg[dc->op1]();
1508 gen_op_movl_T1_T0();
1509 gen_movl_preg_T0[dc->op2]();
1512 static unsigned int dec_move_pr(DisasContext *dc)
1514 DIS(fprintf (logfile, "move $p%u, $r%u\n", dc->op1, dc->op2));
1515 cris_cc_mask(dc, 0);
1516 /* Support register 0 is hardwired to zero.
1517 Treat it specially. */
1519 gen_op_movl_T1_im(0);
1521 gen_movl_T0_preg[dc->op2]();
1522 gen_op_movl_T1_T0();
1524 crisv32_alu_op(dc, CC_OP_MOVE, dc->op1, preg_sizes[dc->op2]);
1528 static unsigned int dec_move_mr(DisasContext *dc)
1530 int memsize = memsize_zz(dc);
1532 DIS(fprintf (logfile, "move.%c [$r%u%s, $r%u\n",
1533 memsize_char(memsize),
1534 dc->op1, dc->postinc ? "+]" : "]",
1537 cris_cc_mask(dc, CC_MASK_NZ);
1538 insn_len = dec_prep_alu_m(dc, 0, memsize);
1539 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, memsize);
1540 do_postinc(dc, memsize);
1544 static unsigned int dec_movs_m(DisasContext *dc)
1546 int memsize = memsize_z(dc);
1548 DIS(fprintf (logfile, "movs.%c [$r%u%s, $r%u\n",
1549 memsize_char(memsize),
1550 dc->op1, dc->postinc ? "+]" : "]",
1554 cris_cc_mask(dc, CC_MASK_NZ);
1555 insn_len = dec_prep_alu_m(dc, 1, memsize);
1556 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1557 do_postinc(dc, memsize);
1561 static unsigned int dec_addu_m(DisasContext *dc)
1563 int memsize = memsize_z(dc);
1565 DIS(fprintf (logfile, "addu.%c [$r%u%s, $r%u\n",
1566 memsize_char(memsize),
1567 dc->op1, dc->postinc ? "+]" : "]",
1571 cris_cc_mask(dc, CC_MASK_NZVC);
1572 insn_len = dec_prep_alu_m(dc, 0, memsize);
1573 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
1574 do_postinc(dc, memsize);
1578 static unsigned int dec_adds_m(DisasContext *dc)
1580 int memsize = memsize_z(dc);
1582 DIS(fprintf (logfile, "adds.%c [$r%u%s, $r%u\n",
1583 memsize_char(memsize),
1584 dc->op1, dc->postinc ? "+]" : "]",
1588 cris_cc_mask(dc, CC_MASK_NZVC);
1589 insn_len = dec_prep_alu_m(dc, 1, memsize);
1590 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
1591 do_postinc(dc, memsize);
1595 static unsigned int dec_subu_m(DisasContext *dc)
1597 int memsize = memsize_z(dc);
1599 DIS(fprintf (logfile, "subu.%c [$r%u%s, $r%u\n",
1600 memsize_char(memsize),
1601 dc->op1, dc->postinc ? "+]" : "]",
1605 cris_cc_mask(dc, CC_MASK_NZVC);
1606 insn_len = dec_prep_alu_m(dc, 0, memsize);
1607 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
1608 do_postinc(dc, memsize);
1612 static unsigned int dec_subs_m(DisasContext *dc)
1614 int memsize = memsize_z(dc);
1616 DIS(fprintf (logfile, "subs.%c [$r%u%s, $r%u\n",
1617 memsize_char(memsize),
1618 dc->op1, dc->postinc ? "+]" : "]",
1622 cris_cc_mask(dc, CC_MASK_NZVC);
1623 insn_len = dec_prep_alu_m(dc, 1, memsize);
1624 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
1625 do_postinc(dc, memsize);
1629 static unsigned int dec_movu_m(DisasContext *dc)
1631 int memsize = memsize_z(dc);
1634 DIS(fprintf (logfile, "movu.%c [$r%u%s, $r%u\n",
1635 memsize_char(memsize),
1636 dc->op1, dc->postinc ? "+]" : "]",
1639 cris_cc_mask(dc, CC_MASK_NZ);
1640 insn_len = dec_prep_alu_m(dc, 0, memsize);
1641 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1642 do_postinc(dc, memsize);
1646 static unsigned int dec_cmpu_m(DisasContext *dc)
1648 int memsize = memsize_z(dc);
1650 DIS(fprintf (logfile, "cmpu.%c [$r%u%s, $r%u\n",
1651 memsize_char(memsize),
1652 dc->op1, dc->postinc ? "+]" : "]",
1655 cris_cc_mask(dc, CC_MASK_NZVC);
1656 insn_len = dec_prep_alu_m(dc, 0, memsize);
1657 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, 4);
1658 do_postinc(dc, memsize);
1662 static unsigned int dec_cmps_m(DisasContext *dc)
1664 int memsize = memsize_z(dc);
1666 DIS(fprintf (logfile, "cmps.%c [$r%u%s, $r%u\n",
1667 memsize_char(memsize),
1668 dc->op1, dc->postinc ? "+]" : "]",
1671 cris_cc_mask(dc, CC_MASK_NZVC);
1672 insn_len = dec_prep_alu_m(dc, 1, memsize);
1673 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, memsize_zz(dc));
1674 do_postinc(dc, memsize);
1678 static unsigned int dec_cmp_m(DisasContext *dc)
1680 int memsize = memsize_zz(dc);
1682 DIS(fprintf (logfile, "cmp.%c [$r%u%s, $r%u\n",
1683 memsize_char(memsize),
1684 dc->op1, dc->postinc ? "+]" : "]",
1687 cris_cc_mask(dc, CC_MASK_NZVC);
1688 insn_len = dec_prep_alu_m(dc, 0, memsize);
1689 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, memsize_zz(dc));
1690 do_postinc(dc, memsize);
1694 static unsigned int dec_test_m(DisasContext *dc)
1696 int memsize = memsize_zz(dc);
1698 DIS(fprintf (logfile, "test.%d [$r%u%s] op2=%x\n",
1699 memsize_char(memsize),
1700 dc->op1, dc->postinc ? "+]" : "]",
1703 cris_cc_mask(dc, CC_MASK_NZ);
1705 insn_len = dec_prep_alu_m(dc, 0, memsize);
1707 gen_op_movl_T1_im(0);
1708 crisv32_alu_op(dc, CC_OP_CMP, dc->op2, memsize_zz(dc));
1709 do_postinc(dc, memsize);
1713 static unsigned int dec_and_m(DisasContext *dc)
1715 int memsize = memsize_zz(dc);
1717 DIS(fprintf (logfile, "and.%d [$r%u%s, $r%u\n",
1718 memsize_char(memsize),
1719 dc->op1, dc->postinc ? "+]" : "]",
1722 cris_cc_mask(dc, CC_MASK_NZ);
1723 insn_len = dec_prep_alu_m(dc, 0, memsize);
1724 crisv32_alu_op(dc, CC_OP_AND, dc->op2, memsize_zz(dc));
1725 do_postinc(dc, memsize);
1729 static unsigned int dec_add_m(DisasContext *dc)
1731 int memsize = memsize_zz(dc);
1733 DIS(fprintf (logfile, "add.%d [$r%u%s, $r%u\n",
1734 memsize_char(memsize),
1735 dc->op1, dc->postinc ? "+]" : "]",
1738 cris_cc_mask(dc, CC_MASK_NZVC);
1739 insn_len = dec_prep_alu_m(dc, 0, memsize);
1740 crisv32_alu_op(dc, CC_OP_ADD, dc->op2, memsize_zz(dc));
1741 do_postinc(dc, memsize);
1745 static unsigned int dec_addo_m(DisasContext *dc)
1747 int memsize = memsize_zz(dc);
1749 DIS(fprintf (logfile, "add.%d [$r%u%s, $r%u\n",
1750 memsize_char(memsize),
1751 dc->op1, dc->postinc ? "+]" : "]",
1754 cris_cc_mask(dc, 0);
1755 insn_len = dec_prep_alu_m(dc, 1, memsize);
1756 crisv32_alu_op(dc, CC_OP_ADD, REG_ACR, 4);
1757 do_postinc(dc, memsize);
1761 static unsigned int dec_bound_m(DisasContext *dc)
1763 int memsize = memsize_zz(dc);
1765 DIS(fprintf (logfile, "bound.%d [$r%u%s, $r%u\n",
1766 memsize_char(memsize),
1767 dc->op1, dc->postinc ? "+]" : "]",
1770 cris_cc_mask(dc, CC_MASK_NZ);
1771 insn_len = dec_prep_alu_m(dc, 0, memsize);
1772 crisv32_alu_op(dc, CC_OP_BOUND, dc->op2, 4);
1773 do_postinc(dc, memsize);
1777 static unsigned int dec_addc_mr(DisasContext *dc)
1780 DIS(fprintf (logfile, "addc [$r%u%s, $r%u\n",
1781 dc->op1, dc->postinc ? "+]" : "]",
1784 cris_evaluate_flags(dc);
1785 cris_cc_mask(dc, CC_MASK_NZVC);
1786 insn_len = dec_prep_alu_m(dc, 0, 4);
1787 crisv32_alu_op(dc, CC_OP_ADDC, dc->op2, 4);
1792 static unsigned int dec_sub_m(DisasContext *dc)
1794 int memsize = memsize_zz(dc);
1796 DIS(fprintf (logfile, "sub.%c [$r%u%s, $r%u ir=%x zz=%x\n",
1797 memsize_char(memsize),
1798 dc->op1, dc->postinc ? "+]" : "]",
1799 dc->op2, dc->ir, dc->zzsize));
1801 cris_cc_mask(dc, CC_MASK_NZVC);
1802 insn_len = dec_prep_alu_m(dc, 0, memsize);
1803 crisv32_alu_op(dc, CC_OP_SUB, dc->op2, memsize);
1804 do_postinc(dc, memsize);
1808 static unsigned int dec_or_m(DisasContext *dc)
1810 int memsize = memsize_zz(dc);
1812 DIS(fprintf (logfile, "or.%d [$r%u%s, $r%u pc=%x\n",
1813 memsize_char(memsize),
1814 dc->op1, dc->postinc ? "+]" : "]",
1817 cris_cc_mask(dc, CC_MASK_NZ);
1818 insn_len = dec_prep_alu_m(dc, 0, memsize);
1819 crisv32_alu_op(dc, CC_OP_OR, dc->op2, memsize_zz(dc));
1820 do_postinc(dc, memsize);
1824 static unsigned int dec_move_mp(DisasContext *dc)
1826 int memsize = memsize_zz(dc);
1829 DIS(fprintf (logfile, "move.%c [$r%u%s, $p%u\n",
1830 memsize_char(memsize),
1832 dc->postinc ? "+]" : "]",
1835 cris_cc_mask(dc, 0);
1836 insn_len = dec_prep_alu_m(dc, 0, memsize);
1837 gen_op_movl_T0_T1();
1838 gen_movl_preg_T0[dc->op2]();
1840 do_postinc(dc, memsize);
1844 static unsigned int dec_move_pm(DisasContext *dc)
1848 memsize = preg_sizes[dc->op2];
1850 DIS(fprintf (logfile, "move.%c $p%u, [$r%u%s\n",
1851 memsize_char(memsize),
1852 dc->op2, dc->op1, dc->postinc ? "+]" : "]"));
1854 cris_cc_mask(dc, 0);
1855 /* prepare store. Address in T0, value in T1. */
1856 /* Support register 0 is hardwired to zero.
1857 Treat it specially. */
1859 gen_op_movl_T1_im(0);
1862 gen_movl_T0_preg[dc->op2]();
1863 gen_op_movl_T1_T0();
1865 gen_movl_T0_reg[dc->op1]();
1866 gen_store_T0_T1(dc, memsize);
1869 gen_op_addl_T0_im(memsize);
1870 gen_movl_reg_T0[dc->op1]();
1875 static unsigned int dec_movem_mr(DisasContext *dc)
1879 DIS(fprintf (logfile, "movem [$r%u%s, $r%u\n", dc->op1,
1880 dc->postinc ? "+]" : "]", dc->op2));
1882 cris_cc_mask(dc, 0);
1883 /* fetch the address into T1. */
1884 gen_movl_T0_reg[dc->op1]();
1885 gen_op_movl_T1_T0();
1886 for (i = 0; i <= dc->op2; i++) {
1887 /* Perform the load onto regnum i. Always dword wide. */
1888 gen_load_T0_T0(dc, 4, 0);
1889 gen_movl_reg_T0[i]();
1890 /* Update the address. */
1891 gen_op_addl_T1_im(4);
1892 gen_op_movl_T0_T1();
1895 /* writeback the updated pointer value. */
1896 gen_movl_reg_T0[dc->op1]();
1901 static unsigned int dec_movem_rm(DisasContext *dc)
1905 DIS(fprintf (logfile, "movem $r%u, [$r%u%s\n", dc->op2, dc->op1,
1906 dc->postinc ? "+]" : "]"));
1908 cris_cc_mask(dc, 0);
1909 for (i = 0; i <= dc->op2; i++) {
1910 /* Fetch register i into T1. */
1911 gen_movl_T0_reg[i]();
1912 gen_op_movl_T1_T0();
1914 /* Fetch the address into T0. */
1915 gen_movl_T0_reg[dc->op1]();
1917 gen_op_addl_T0_im(i * 4);
1919 /* Perform the store. */
1920 gen_store_T0_T1(dc, 4);
1923 /* Update the address. */
1924 gen_op_addl_T0_im(4);
1925 /* writeback the updated pointer value. */
1926 gen_movl_reg_T0[dc->op1]();
1931 static unsigned int dec_move_rm(DisasContext *dc)
1935 memsize = memsize_zz(dc);
1937 DIS(fprintf (logfile, "move.%d $r%u, [$r%u]\n",
1938 memsize, dc->op2, dc->op1));
1940 cris_cc_mask(dc, 0);
1941 /* prepare store. */
1942 gen_movl_T0_reg[dc->op2]();
1943 gen_op_movl_T1_T0();
1944 gen_movl_T0_reg[dc->op1]();
1945 gen_store_T0_T1(dc, memsize);
1948 gen_op_addl_T0_im(memsize);
1949 gen_movl_reg_T0[dc->op1]();
1955 static unsigned int dec_lapcq(DisasContext *dc)
1957 DIS(fprintf (logfile, "lapcq %x, $r%u\n",
1958 dc->pc + dc->op1*2, dc->op2));
1959 cris_cc_mask(dc, 0);
1960 gen_op_movl_T1_im(dc->pc + dc->op1*2);
1961 crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
1965 static unsigned int dec_lapc_im(DisasContext *dc)
1973 cris_cc_mask(dc, 0);
1974 imm = ldl_code(dc->pc + 2);
1975 DIS(fprintf (logfile, "lapc 0x%x, $r%u\n", imm + dc->pc, dc->op2));
1976 gen_op_movl_T0_im (dc->pc + imm);
1977 gen_movl_reg_T0[rd] ();
1981 /* Jump to special reg. */
1982 static unsigned int dec_jump_p(DisasContext *dc)
1984 DIS(fprintf (logfile, "jump $p%u\n", dc->op2));
1985 cris_cc_mask(dc, 0);
1986 /* Store the return address in Pd. */
1987 gen_movl_T0_preg[dc->op2]();
1988 gen_op_movl_btarget_T0();
1989 cris_prepare_dyn_jmp(dc);
1993 /* Jump and save. */
1994 static unsigned int dec_jas_r(DisasContext *dc)
1996 DIS(fprintf (logfile, "jas $r%u, $p%u\n", dc->op1, dc->op2));
1997 cris_cc_mask(dc, 0);
1998 /* Stor the return address in Pd. */
1999 gen_movl_T0_reg[dc->op1]();
2000 gen_op_movl_btarget_T0();
2001 gen_op_movl_T0_im(dc->pc + 4);
2002 gen_movl_preg_T0[dc->op2]();
2003 cris_prepare_dyn_jmp(dc);
2007 static unsigned int dec_jas_im(DisasContext *dc)
2011 imm = ldl_code(dc->pc + 2);
2013 DIS(fprintf (logfile, "jas 0x%x\n", imm));
2014 cris_cc_mask(dc, 0);
2015 /* Stor the return address in Pd. */
2016 gen_op_movl_T0_im(imm);
2017 gen_op_movl_btarget_T0();
2018 gen_op_movl_T0_im(dc->pc + 8);
2019 gen_movl_preg_T0[dc->op2]();
2020 cris_prepare_dyn_jmp(dc);
2024 static unsigned int dec_jasc_im(DisasContext *dc)
2028 imm = ldl_code(dc->pc + 2);
2030 DIS(fprintf (logfile, "jasc 0x%x\n", imm));
2031 cris_cc_mask(dc, 0);
2032 /* Stor the return address in Pd. */
2033 gen_op_movl_T0_im(imm);
2034 gen_op_movl_btarget_T0();
2035 gen_op_movl_T0_im(dc->pc + 8 + 4);
2036 gen_movl_preg_T0[dc->op2]();
2037 cris_prepare_dyn_jmp(dc);
2041 static unsigned int dec_jasc_r(DisasContext *dc)
2043 DIS(fprintf (logfile, "jasc_r $r%u, $p%u\n", dc->op1, dc->op2));
2044 cris_cc_mask(dc, 0);
2045 /* Stor the return address in Pd. */
2046 gen_movl_T0_reg[dc->op1]();
2047 gen_op_movl_btarget_T0();
2048 gen_op_movl_T0_im(dc->pc + 4 + 4);
2049 gen_movl_preg_T0[dc->op2]();
2050 cris_prepare_dyn_jmp(dc);
2054 static unsigned int dec_bcc_im(DisasContext *dc)
2057 uint32_t cond = dc->op2;
2059 offset = ldl_code(dc->pc + 2);
2060 offset = sign_extend(offset, 15);
2062 DIS(fprintf (logfile, "b%s %d pc=%x dst=%x\n",
2063 cc_name(cond), offset,
2064 dc->pc, dc->pc + offset));
2066 cris_cc_mask(dc, 0);
2067 /* op2 holds the condition-code. */
2068 cris_prepare_cc_branch (dc, offset, cond);
2072 static unsigned int dec_bas_im(DisasContext *dc)
2077 simm = ldl_code(dc->pc + 2);
2079 DIS(fprintf (logfile, "bas 0x%x, $p%u\n", dc->pc + simm, dc->op2));
2080 cris_cc_mask(dc, 0);
2081 /* Stor the return address in Pd. */
2082 gen_op_movl_T0_im(dc->pc + simm);
2083 gen_op_movl_btarget_T0();
2084 gen_op_movl_T0_im(dc->pc + 8);
2085 gen_movl_preg_T0[dc->op2]();
2086 cris_prepare_dyn_jmp(dc);
2090 static unsigned int dec_basc_im(DisasContext *dc)
2093 simm = ldl_code(dc->pc + 2);
2095 DIS(fprintf (logfile, "basc 0x%x, $p%u\n", dc->pc + simm, dc->op2));
2096 cris_cc_mask(dc, 0);
2097 /* Stor the return address in Pd. */
2098 gen_op_movl_T0_im(dc->pc + simm);
2099 gen_op_movl_btarget_T0();
2100 gen_op_movl_T0_im(dc->pc + 12);
2101 gen_movl_preg_T0[dc->op2]();
2102 cris_prepare_dyn_jmp(dc);
2106 static unsigned int dec_rfe_etc(DisasContext *dc)
2108 DIS(fprintf (logfile, "rfe_etc opc=%x pc=0x%x op1=%d op2=%d\n",
2109 dc->opcode, dc->pc, dc->op1, dc->op2));
2111 cris_cc_mask(dc, 0);
2113 if (dc->op2 == 15) /* ignore halt. */
2116 switch (dc->op2 & 7) {
2119 cris_evaluate_flags(dc);
2120 gen_op_ccs_rshift();
2128 gen_op_movl_T0_im(dc->pc);
2129 gen_op_movl_pc_T0();
2130 /* Breaks start at 16 in the exception vector. */
2131 gen_op_break_im(dc->op1 + 16);
2134 printf ("op2=%x\n", dc->op2);
2143 static unsigned int dec_null(DisasContext *dc)
2145 printf ("unknown insn pc=%x opc=%x op1=%x op2=%x\n",
2146 dc->pc, dc->opcode, dc->op1, dc->op2);
2152 struct decoder_info {
2157 unsigned int (*dec)(DisasContext *dc);
2159 /* Order matters here. */
2160 {DEC_MOVEQ, dec_moveq},
2161 {DEC_BTSTQ, dec_btstq},
2162 {DEC_CMPQ, dec_cmpq},
2163 {DEC_ADDOQ, dec_addoq},
2164 {DEC_ADDQ, dec_addq},
2165 {DEC_SUBQ, dec_subq},
2166 {DEC_ANDQ, dec_andq},
2168 {DEC_ASRQ, dec_asrq},
2169 {DEC_LSLQ, dec_lslq},
2170 {DEC_LSRQ, dec_lsrq},
2171 {DEC_BCCQ, dec_bccq},
2173 {DEC_BCC_IM, dec_bcc_im},
2174 {DEC_JAS_IM, dec_jas_im},
2175 {DEC_JAS_R, dec_jas_r},
2176 {DEC_JASC_IM, dec_jasc_im},
2177 {DEC_JASC_R, dec_jasc_r},
2178 {DEC_BAS_IM, dec_bas_im},
2179 {DEC_BASC_IM, dec_basc_im},
2180 {DEC_JUMP_P, dec_jump_p},
2181 {DEC_LAPC_IM, dec_lapc_im},
2182 {DEC_LAPCQ, dec_lapcq},
2184 {DEC_RFE_ETC, dec_rfe_etc},
2185 {DEC_ADDC_MR, dec_addc_mr},
2187 {DEC_MOVE_MP, dec_move_mp},
2188 {DEC_MOVE_PM, dec_move_pm},
2189 {DEC_MOVEM_MR, dec_movem_mr},
2190 {DEC_MOVEM_RM, dec_movem_rm},
2191 {DEC_MOVE_PR, dec_move_pr},
2192 {DEC_SCC_R, dec_scc_r},
2193 {DEC_SETF, dec_setclrf},
2194 {DEC_CLEARF, dec_setclrf},
2196 {DEC_MOVE_SR, dec_move_sr},
2197 {DEC_MOVE_RP, dec_move_rp},
2198 {DEC_SWAP_R, dec_swap_r},
2199 {DEC_ABS_R, dec_abs_r},
2200 {DEC_LZ_R, dec_lz_r},
2201 {DEC_MOVE_RS, dec_move_rs},
2202 {DEC_BTST_R, dec_btst_r},
2203 {DEC_ADDC_R, dec_addc_r},
2205 {DEC_DSTEP_R, dec_dstep_r},
2206 {DEC_XOR_R, dec_xor_r},
2207 {DEC_MCP_R, dec_mcp_r},
2208 {DEC_CMP_R, dec_cmp_r},
2210 {DEC_ADDI_R, dec_addi_r},
2211 {DEC_ADDI_ACR, dec_addi_acr},
2213 {DEC_ADD_R, dec_add_r},
2214 {DEC_SUB_R, dec_sub_r},
2216 {DEC_ADDU_R, dec_addu_r},
2217 {DEC_ADDS_R, dec_adds_r},
2218 {DEC_SUBU_R, dec_subu_r},
2219 {DEC_SUBS_R, dec_subs_r},
2220 {DEC_LSL_R, dec_lsl_r},
2222 {DEC_AND_R, dec_and_r},
2223 {DEC_OR_R, dec_or_r},
2224 {DEC_BOUND_R, dec_bound_r},
2225 {DEC_ASR_R, dec_asr_r},
2226 {DEC_LSR_R, dec_lsr_r},
2228 {DEC_MOVU_R, dec_movu_r},
2229 {DEC_MOVS_R, dec_movs_r},
2230 {DEC_NEG_R, dec_neg_r},
2231 {DEC_MOVE_R, dec_move_r},
2233 /* ftag_fidx_i_m. */
2234 /* ftag_fidx_d_m. */
2236 {DEC_MULS_R, dec_muls_r},
2237 {DEC_MULU_R, dec_mulu_r},
2239 {DEC_ADDU_M, dec_addu_m},
2240 {DEC_ADDS_M, dec_adds_m},
2241 {DEC_SUBU_M, dec_subu_m},
2242 {DEC_SUBS_M, dec_subs_m},
2244 {DEC_CMPU_M, dec_cmpu_m},
2245 {DEC_CMPS_M, dec_cmps_m},
2246 {DEC_MOVU_M, dec_movu_m},
2247 {DEC_MOVS_M, dec_movs_m},
2249 {DEC_CMP_M, dec_cmp_m},
2250 {DEC_ADDO_M, dec_addo_m},
2251 {DEC_BOUND_M, dec_bound_m},
2252 {DEC_ADD_M, dec_add_m},
2253 {DEC_SUB_M, dec_sub_m},
2254 {DEC_AND_M, dec_and_m},
2255 {DEC_OR_M, dec_or_m},
2256 {DEC_MOVE_RM, dec_move_rm},
2257 {DEC_TEST_M, dec_test_m},
2258 {DEC_MOVE_MR, dec_move_mr},
2263 static inline unsigned int
2264 cris_decoder(DisasContext *dc)
2266 unsigned int insn_len = 2;
2270 /* Load a halfword onto the instruction register. */
2271 tmp = ldl_code(dc->pc);
2272 dc->ir = tmp & 0xffff;
2274 /* Now decode it. */
2275 dc->opcode = EXTRACT_FIELD(dc->ir, 4, 11);
2276 dc->op1 = EXTRACT_FIELD(dc->ir, 0, 3);
2277 dc->op2 = EXTRACT_FIELD(dc->ir, 12, 15);
2278 dc->zsize = EXTRACT_FIELD(dc->ir, 4, 4);
2279 dc->zzsize = EXTRACT_FIELD(dc->ir, 4, 5);
2280 dc->postinc = EXTRACT_FIELD(dc->ir, 10, 10);
2282 /* Large switch for all insns. */
2283 for (i = 0; i < sizeof decinfo / sizeof decinfo[0]; i++) {
2284 if ((dc->opcode & decinfo[i].mask) == decinfo[i].bits)
2286 insn_len = decinfo[i].dec(dc);
2294 static void check_breakpoint(CPUState *env, DisasContext *dc)
2297 if (env->nb_breakpoints > 0) {
2298 for(j = 0; j < env->nb_breakpoints; j++) {
2299 if (env->breakpoints[j] == dc->pc) {
2300 cris_evaluate_flags (dc);
2301 gen_op_movl_T0_im((long)dc->pc);
2302 gen_op_movl_pc_T0();
2304 dc->is_jmp = DISAS_UPDATE;
2311 /* generate intermediate code for basic block 'tb'. */
2312 struct DisasContext ctx;
2314 gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb,
2317 uint16_t *gen_opc_end;
2319 unsigned int insn_len;
2321 struct DisasContext *dc = &ctx;
2322 uint32_t next_page_start;
2328 gen_opc_ptr = gen_opc_buf;
2329 gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
2330 gen_opparam_ptr = gen_opparam_buf;
2332 dc->is_jmp = DISAS_NEXT;
2334 dc->singlestep_enabled = env->singlestep_enabled;
2337 next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
2341 check_breakpoint(env, dc);
2342 if (dc->is_jmp == DISAS_JUMP)
2346 j = gen_opc_ptr - gen_opc_buf;
2350 gen_opc_instr_start[lj++] = 0;
2352 gen_opc_pc[lj] = dc->pc;
2353 gen_opc_instr_start[lj] = 1;
2356 insn_len = cris_decoder(dc);
2357 STATS(gen_op_exec_insn());
2360 || (dc->flagx_live &&
2361 !(dc->cc_op == CC_OP_FLAGS && dc->flags_x))) {
2362 gen_movl_T0_preg[SR_CCS]();
2363 gen_op_andl_T0_im(~X_FLAG);
2364 gen_movl_preg_T0[SR_CCS]();
2369 /* Check for delayed branches here. If we do it before
2370 actually genereating any host code, the simulator will just
2371 loop doing nothing for on this program location. */
2372 if (dc->delayed_branch) {
2373 dc->delayed_branch--;
2374 if (dc->delayed_branch == 0)
2376 if (dc->bcc == CC_A) {
2378 dc->is_jmp = DISAS_UPDATE;
2381 /* Conditional jmp. */
2382 gen_op_cc_jmp (dc->delayed_pc, dc->pc);
2383 dc->is_jmp = DISAS_UPDATE;
2388 if (env->singlestep_enabled)
2390 } while (!dc->is_jmp && gen_opc_ptr < gen_opc_end
2391 && dc->pc < next_page_start);
2394 gen_op_movl_T0_im((long)dc->pc);
2395 gen_op_movl_pc_T0();
2398 cris_evaluate_flags (dc);
2400 if (__builtin_expect(env->singlestep_enabled, 0)) {
2403 switch(dc->is_jmp) {
2405 gen_goto_tb(dc, 1, dc->pc);
2410 /* indicate that the hash table must be used
2411 to find the next TB */
2412 /* T0 is used to index the jmp tables. */
2417 /* nothing more to generate */
2421 *gen_opc_ptr = INDEX_op_end;
2423 j = gen_opc_ptr - gen_opc_buf;
2426 gen_opc_instr_start[lj++] = 0;
2428 tb->size = dc->pc - pc_start;
2432 if (loglevel & CPU_LOG_TB_IN_ASM) {
2433 fprintf(logfile, "--------------\n");
2434 fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
2435 target_disas(logfile, pc_start, dc->pc + 4 - pc_start, 0);
2436 fprintf(logfile, "\n");
2437 if (loglevel & CPU_LOG_TB_OP) {
2438 fprintf(logfile, "OP:\n");
2439 dump_ops(gen_opc_buf, gen_opparam_buf);
2440 fprintf(logfile, "\n");
2447 int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb)
2449 return gen_intermediate_code_internal(env, tb, 0);
2452 int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb)
2454 return gen_intermediate_code_internal(env, tb, 1);
2457 void cpu_dump_state (CPUState *env, FILE *f,
2458 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
2467 cpu_fprintf(f, "PC=%x CCS=%x btaken=%d btarget=%x\n"
2468 "cc_op=%d cc_src=%d cc_dest=%d cc_result=%x cc_mask=%x\n"
2470 env->pc, env->pregs[SR_CCS], env->btaken, env->btarget,
2472 env->cc_src, env->cc_dest, env->cc_result, env->cc_mask,
2473 env->debug1, env->debug2, env->debug3);
2475 for (i = 0; i < 16; i++) {
2476 cpu_fprintf(f, "r%2.2d=%8.8x ", i, env->regs[i]);
2477 if ((i + 1) % 4 == 0)
2478 cpu_fprintf(f, "\n");
2480 cpu_fprintf(f, "\nspecial regs:\n");
2481 for (i = 0; i < 16; i++) {
2482 cpu_fprintf(f, "p%2.2d=%8.8x ", i, env->pregs[i]);
2483 if ((i + 1) % 4 == 0)
2484 cpu_fprintf(f, "\n");
2486 srs = env->pregs[SR_SRS];
2487 cpu_fprintf(f, "\nsupport function regs bank %d:\n", srs);
2489 for (i = 0; i < 16; i++) {
2490 cpu_fprintf(f, "s%2.2d=%8.8x ",
2491 i, env->sregs[srs][i]);
2492 if ((i + 1) % 4 == 0)
2493 cpu_fprintf(f, "\n");
2496 cpu_fprintf(f, "\n\n");
2500 CPUCRISState *cpu_cris_init (const char *cpu_model)
2504 env = qemu_mallocz(sizeof(CPUCRISState));
2512 void cpu_reset (CPUCRISState *env)
2514 memset(env, 0, offsetof(CPUCRISState, breakpoints));