2 * UniCore32 translation
4 * Copyright (C) 2010-2012 Guan Xuetao
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation, or (at your option) any
9 * later version. See the COPYING file in the top-level directory.
18 #include "disas/disas.h"
26 /* internal defines */
27 typedef struct DisasContext {
30 /* Nonzero if this instruction has been conditionally skipped. */
32 /* The label that will be jumped to when the instruction is skipped. */
34 struct TranslationBlock *tb;
35 int singlestep_enabled;
36 #ifndef CONFIG_USER_ONLY
41 #ifndef CONFIG_USER_ONLY
42 #define IS_USER(s) (s->user)
47 /* These instructions trap after executing, so defer them until after the
48 conditional executions state has been updated. */
49 #define DISAS_SYSCALL 5
51 static TCGv_ptr cpu_env;
52 static TCGv_i32 cpu_R[32];
54 /* FIXME: These should be removed. */
55 static TCGv cpu_F0s, cpu_F1s;
56 static TCGv_i64 cpu_F0d, cpu_F1d;
58 #include "exec/gen-icount.h"
60 static const char *regnames[] = {
61 "r00", "r01", "r02", "r03", "r04", "r05", "r06", "r07",
62 "r08", "r09", "r10", "r11", "r12", "r13", "r14", "r15",
63 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
64 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "pc" };
66 /* initialize TCG globals. */
67 void uc32_translate_init(void)
71 cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
73 for (i = 0; i < 32; i++) {
74 cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0,
75 offsetof(CPUUniCore32State, regs[i]), regnames[i]);
84 /* Allocate a temporary variable. */
85 static TCGv_i32 new_tmp(void)
88 return tcg_temp_new_i32();
91 /* Release a temporary variable. */
92 static void dead_tmp(TCGv tmp)
98 static inline TCGv load_cpu_offset(int offset)
100 TCGv tmp = new_tmp();
101 tcg_gen_ld_i32(tmp, cpu_env, offset);
105 #define load_cpu_field(name) load_cpu_offset(offsetof(CPUUniCore32State, name))
107 static inline void store_cpu_offset(TCGv var, int offset)
109 tcg_gen_st_i32(var, cpu_env, offset);
113 #define store_cpu_field(var, name) \
114 store_cpu_offset(var, offsetof(CPUUniCore32State, name))
116 /* Set a variable to the value of a CPU register. */
117 static void load_reg_var(DisasContext *s, TCGv var, int reg)
121 /* normaly, since we updated PC */
123 tcg_gen_movi_i32(var, addr);
125 tcg_gen_mov_i32(var, cpu_R[reg]);
129 /* Create a new temporary and set it to the value of a CPU register. */
130 static inline TCGv load_reg(DisasContext *s, int reg)
132 TCGv tmp = new_tmp();
133 load_reg_var(s, tmp, reg);
137 /* Set a CPU register. The source must be a temporary and will be
139 static void store_reg(DisasContext *s, int reg, TCGv var)
142 tcg_gen_andi_i32(var, var, ~3);
143 s->is_jmp = DISAS_JUMP;
145 tcg_gen_mov_i32(cpu_R[reg], var);
149 /* Value extensions. */
150 #define gen_uxtb(var) tcg_gen_ext8u_i32(var, var)
151 #define gen_uxth(var) tcg_gen_ext16u_i32(var, var)
152 #define gen_sxtb(var) tcg_gen_ext8s_i32(var, var)
153 #define gen_sxth(var) tcg_gen_ext16s_i32(var, var)
155 #define UCOP_REG_M (((insn) >> 0) & 0x1f)
156 #define UCOP_REG_N (((insn) >> 19) & 0x1f)
157 #define UCOP_REG_D (((insn) >> 14) & 0x1f)
158 #define UCOP_REG_S (((insn) >> 9) & 0x1f)
159 #define UCOP_REG_LO (((insn) >> 14) & 0x1f)
160 #define UCOP_REG_HI (((insn) >> 9) & 0x1f)
161 #define UCOP_SH_OP (((insn) >> 6) & 0x03)
162 #define UCOP_SH_IM (((insn) >> 9) & 0x1f)
163 #define UCOP_OPCODES (((insn) >> 25) & 0x0f)
164 #define UCOP_IMM_9 (((insn) >> 0) & 0x1ff)
165 #define UCOP_IMM10 (((insn) >> 0) & 0x3ff)
166 #define UCOP_IMM14 (((insn) >> 0) & 0x3fff)
167 #define UCOP_COND (((insn) >> 25) & 0x0f)
168 #define UCOP_CMOV_COND (((insn) >> 19) & 0x0f)
169 #define UCOP_CPNUM (((insn) >> 10) & 0x0f)
170 #define UCOP_UCF64_FMT (((insn) >> 24) & 0x03)
171 #define UCOP_UCF64_FUNC (((insn) >> 6) & 0x0f)
172 #define UCOP_UCF64_COND (((insn) >> 6) & 0x0f)
174 #define UCOP_SET(i) ((insn) & (1 << (i)))
175 #define UCOP_SET_P UCOP_SET(28)
176 #define UCOP_SET_U UCOP_SET(27)
177 #define UCOP_SET_B UCOP_SET(26)
178 #define UCOP_SET_W UCOP_SET(25)
179 #define UCOP_SET_L UCOP_SET(24)
180 #define UCOP_SET_S UCOP_SET(24)
182 #define ILLEGAL cpu_abort(env, \
183 "Illegal UniCore32 instruction %x at line %d!", \
186 #ifndef CONFIG_USER_ONLY
187 static void disas_cp0_insn(CPUUniCore32State *env, DisasContext *s,
190 TCGv tmp, tmp2, tmp3;
191 if ((insn & 0xfe000000) == 0xe0000000) {
194 tcg_gen_movi_i32(tmp2, UCOP_REG_N);
195 tcg_gen_movi_i32(tmp3, UCOP_IMM10);
198 gen_helper_cp0_get(tmp, cpu_env, tmp2, tmp3);
199 store_reg(s, UCOP_REG_D, tmp);
201 tmp = load_reg(s, UCOP_REG_D);
202 gen_helper_cp0_set(cpu_env, tmp, tmp2, tmp3);
212 static void disas_ocd_insn(CPUUniCore32State *env, DisasContext *s,
217 if ((insn & 0xff003fff) == 0xe1000400) {
219 * movc rd, pp.nn, #imm9
221 * nn: UCOP_REG_N (must be 0)
224 if (UCOP_REG_N == 0) {
226 tcg_gen_movi_i32(tmp, 0);
227 store_reg(s, UCOP_REG_D, tmp);
233 if ((insn & 0xff003fff) == 0xe0000401) {
235 * movc pp.nn, rn, #imm9
237 * nn: UCOP_REG_N (must be 1)
240 if (UCOP_REG_N == 1) {
241 tmp = load_reg(s, UCOP_REG_D);
242 gen_helper_cp1_putc(tmp);
253 static inline void gen_set_asr(TCGv var, uint32_t mask)
255 TCGv tmp_mask = tcg_const_i32(mask);
256 gen_helper_asr_write(cpu_env, var, tmp_mask);
257 tcg_temp_free_i32(tmp_mask);
259 /* Set NZCV flags from the high 4 bits of var. */
260 #define gen_set_nzcv(var) gen_set_asr(var, ASR_NZCV)
262 static void gen_exception(int excp)
264 TCGv tmp = new_tmp();
265 tcg_gen_movi_i32(tmp, excp);
266 gen_helper_exception(cpu_env, tmp);
270 #define gen_set_CF(var) tcg_gen_st_i32(var, cpu_env, offsetof(CPUUniCore32State, CF))
272 /* Set CF to the top bit of var. */
273 static void gen_set_CF_bit31(TCGv var)
275 TCGv tmp = new_tmp();
276 tcg_gen_shri_i32(tmp, var, 31);
281 /* Set N and Z flags from var. */
282 static inline void gen_logic_CC(TCGv var)
284 tcg_gen_st_i32(var, cpu_env, offsetof(CPUUniCore32State, NF));
285 tcg_gen_st_i32(var, cpu_env, offsetof(CPUUniCore32State, ZF));
288 /* dest = T0 + T1 + CF. */
289 static void gen_add_carry(TCGv dest, TCGv t0, TCGv t1)
292 tcg_gen_add_i32(dest, t0, t1);
293 tmp = load_cpu_field(CF);
294 tcg_gen_add_i32(dest, dest, tmp);
298 /* dest = T0 - T1 + CF - 1. */
299 static void gen_sub_carry(TCGv dest, TCGv t0, TCGv t1)
302 tcg_gen_sub_i32(dest, t0, t1);
303 tmp = load_cpu_field(CF);
304 tcg_gen_add_i32(dest, dest, tmp);
305 tcg_gen_subi_i32(dest, dest, 1);
309 static void shifter_out_im(TCGv var, int shift)
311 TCGv tmp = new_tmp();
313 tcg_gen_andi_i32(tmp, var, 1);
315 tcg_gen_shri_i32(tmp, var, shift);
317 tcg_gen_andi_i32(tmp, tmp, 1);
324 /* Shift by immediate. Includes special handling for shift == 0. */
325 static inline void gen_uc32_shift_im(TCGv var, int shiftop, int shift,
332 shifter_out_im(var, 32 - shift);
334 tcg_gen_shli_i32(var, var, shift);
340 tcg_gen_shri_i32(var, var, 31);
343 tcg_gen_movi_i32(var, 0);
346 shifter_out_im(var, shift - 1);
348 tcg_gen_shri_i32(var, var, shift);
356 shifter_out_im(var, shift - 1);
361 tcg_gen_sari_i32(var, var, shift);
363 case 3: /* ROR/RRX */
366 shifter_out_im(var, shift - 1);
368 tcg_gen_rotri_i32(var, var, shift); break;
370 TCGv tmp = load_cpu_field(CF);
372 shifter_out_im(var, 0);
374 tcg_gen_shri_i32(var, var, 1);
375 tcg_gen_shli_i32(tmp, tmp, 31);
376 tcg_gen_or_i32(var, var, tmp);
382 static inline void gen_uc32_shift_reg(TCGv var, int shiftop,
383 TCGv shift, int flags)
388 gen_helper_shl_cc(var, cpu_env, var, shift);
391 gen_helper_shr_cc(var, cpu_env, var, shift);
394 gen_helper_sar_cc(var, cpu_env, var, shift);
397 gen_helper_ror_cc(var, cpu_env, var, shift);
403 gen_helper_shl(var, var, shift);
406 gen_helper_shr(var, var, shift);
409 gen_helper_sar(var, var, shift);
412 tcg_gen_andi_i32(shift, shift, 0x1f);
413 tcg_gen_rotr_i32(var, var, shift);
420 static void gen_test_cc(int cc, int label)
428 tmp = load_cpu_field(ZF);
429 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
432 tmp = load_cpu_field(ZF);
433 tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
436 tmp = load_cpu_field(CF);
437 tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
440 tmp = load_cpu_field(CF);
441 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
444 tmp = load_cpu_field(NF);
445 tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
448 tmp = load_cpu_field(NF);
449 tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
452 tmp = load_cpu_field(VF);
453 tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
456 tmp = load_cpu_field(VF);
457 tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
459 case 8: /* hi: C && !Z */
460 inv = gen_new_label();
461 tmp = load_cpu_field(CF);
462 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, inv);
464 tmp = load_cpu_field(ZF);
465 tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
468 case 9: /* ls: !C || Z */
469 tmp = load_cpu_field(CF);
470 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
472 tmp = load_cpu_field(ZF);
473 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
475 case 10: /* ge: N == V -> N ^ V == 0 */
476 tmp = load_cpu_field(VF);
477 tmp2 = load_cpu_field(NF);
478 tcg_gen_xor_i32(tmp, tmp, tmp2);
480 tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
482 case 11: /* lt: N != V -> N ^ V != 0 */
483 tmp = load_cpu_field(VF);
484 tmp2 = load_cpu_field(NF);
485 tcg_gen_xor_i32(tmp, tmp, tmp2);
487 tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
489 case 12: /* gt: !Z && N == V */
490 inv = gen_new_label();
491 tmp = load_cpu_field(ZF);
492 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, inv);
494 tmp = load_cpu_field(VF);
495 tmp2 = load_cpu_field(NF);
496 tcg_gen_xor_i32(tmp, tmp, tmp2);
498 tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
501 case 13: /* le: Z || N != V */
502 tmp = load_cpu_field(ZF);
503 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
505 tmp = load_cpu_field(VF);
506 tmp2 = load_cpu_field(NF);
507 tcg_gen_xor_i32(tmp, tmp, tmp2);
509 tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
512 fprintf(stderr, "Bad condition code 0x%x\n", cc);
518 static const uint8_t table_logic_cc[16] = {
519 1, /* and */ 1, /* xor */ 0, /* sub */ 0, /* rsb */
520 0, /* add */ 0, /* adc */ 0, /* sbc */ 0, /* rsc */
521 1, /* andl */ 1, /* xorl */ 0, /* cmp */ 0, /* cmn */
522 1, /* orr */ 1, /* mov */ 1, /* bic */ 1, /* mvn */
525 /* Set PC state from an immediate address. */
526 static inline void gen_bx_im(DisasContext *s, uint32_t addr)
528 s->is_jmp = DISAS_UPDATE;
529 tcg_gen_movi_i32(cpu_R[31], addr & ~3);
532 /* Set PC state from var. var is marked as dead. */
533 static inline void gen_bx(DisasContext *s, TCGv var)
535 s->is_jmp = DISAS_UPDATE;
536 tcg_gen_andi_i32(cpu_R[31], var, ~3);
540 static inline void store_reg_bx(DisasContext *s, int reg, TCGv var)
542 store_reg(s, reg, var);
545 static inline TCGv gen_ld8s(TCGv addr, int index)
547 TCGv tmp = new_tmp();
548 tcg_gen_qemu_ld8s(tmp, addr, index);
552 static inline TCGv gen_ld8u(TCGv addr, int index)
554 TCGv tmp = new_tmp();
555 tcg_gen_qemu_ld8u(tmp, addr, index);
559 static inline TCGv gen_ld16s(TCGv addr, int index)
561 TCGv tmp = new_tmp();
562 tcg_gen_qemu_ld16s(tmp, addr, index);
566 static inline TCGv gen_ld16u(TCGv addr, int index)
568 TCGv tmp = new_tmp();
569 tcg_gen_qemu_ld16u(tmp, addr, index);
573 static inline TCGv gen_ld32(TCGv addr, int index)
575 TCGv tmp = new_tmp();
576 tcg_gen_qemu_ld32u(tmp, addr, index);
580 static inline TCGv_i64 gen_ld64(TCGv addr, int index)
582 TCGv_i64 tmp = tcg_temp_new_i64();
583 tcg_gen_qemu_ld64(tmp, addr, index);
587 static inline void gen_st8(TCGv val, TCGv addr, int index)
589 tcg_gen_qemu_st8(val, addr, index);
593 static inline void gen_st16(TCGv val, TCGv addr, int index)
595 tcg_gen_qemu_st16(val, addr, index);
599 static inline void gen_st32(TCGv val, TCGv addr, int index)
601 tcg_gen_qemu_st32(val, addr, index);
605 static inline void gen_st64(TCGv_i64 val, TCGv addr, int index)
607 tcg_gen_qemu_st64(val, addr, index);
608 tcg_temp_free_i64(val);
611 static inline void gen_set_pc_im(uint32_t val)
613 tcg_gen_movi_i32(cpu_R[31], val);
616 /* Force a TB lookup after an instruction that changes the CPU state. */
617 static inline void gen_lookup_tb(DisasContext *s)
619 tcg_gen_movi_i32(cpu_R[31], s->pc & ~1);
620 s->is_jmp = DISAS_UPDATE;
623 static inline void gen_add_data_offset(DisasContext *s, unsigned int insn,
636 tcg_gen_addi_i32(var, var, val);
640 offset = load_reg(s, UCOP_REG_M);
641 gen_uc32_shift_im(offset, UCOP_SH_OP, UCOP_SH_IM, 0);
643 tcg_gen_sub_i32(var, var, offset);
645 tcg_gen_add_i32(var, var, offset);
651 static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn,
659 val = (insn & 0x1f) | ((insn >> 4) & 0x3e0);
664 tcg_gen_addi_i32(var, var, val);
668 offset = load_reg(s, UCOP_REG_M);
670 tcg_gen_sub_i32(var, var, offset);
672 tcg_gen_add_i32(var, var, offset);
678 static inline long ucf64_reg_offset(int reg)
681 return offsetof(CPUUniCore32State, ucf64.regs[reg >> 1])
682 + offsetof(CPU_DoubleU, l.upper);
684 return offsetof(CPUUniCore32State, ucf64.regs[reg >> 1])
685 + offsetof(CPU_DoubleU, l.lower);
689 #define ucf64_gen_ld32(reg) load_cpu_offset(ucf64_reg_offset(reg))
690 #define ucf64_gen_st32(var, reg) store_cpu_offset(var, ucf64_reg_offset(reg))
692 /* UniCore-F64 single load/store I_offset */
693 static void do_ucf64_ldst_i(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
699 addr = load_reg(s, UCOP_REG_N);
700 if (!UCOP_SET_P && !UCOP_SET_W) {
705 offset = UCOP_IMM10 << 2;
710 tcg_gen_addi_i32(addr, addr, offset);
714 if (UCOP_SET_L) { /* load */
715 tmp = gen_ld32(addr, IS_USER(s));
716 ucf64_gen_st32(tmp, UCOP_REG_D);
718 tmp = ucf64_gen_ld32(UCOP_REG_D);
719 gen_st32(tmp, addr, IS_USER(s));
723 offset = UCOP_IMM10 << 2;
728 tcg_gen_addi_i32(addr, addr, offset);
732 store_reg(s, UCOP_REG_N, addr);
738 /* UniCore-F64 load/store multiple words */
739 static void do_ucf64_ldst_m(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
746 if (UCOP_REG_D != 0) {
749 if (UCOP_REG_N == 31) {
752 if ((insn << 24) == 0) {
756 addr = load_reg(s, UCOP_REG_N);
759 for (i = 0; i < 8; i++) {
766 if (UCOP_SET_P) { /* pre increment */
767 tcg_gen_addi_i32(addr, addr, 4);
768 } /* unnecessary to do anything when post increment */
770 if (UCOP_SET_P) { /* pre decrement */
771 tcg_gen_addi_i32(addr, addr, -(n * 4));
772 } else { /* post decrement */
774 tcg_gen_addi_i32(addr, addr, -((n - 1) * 4));
779 freg = ((insn >> 8) & 3) << 3; /* freg should be 0, 8, 16, 24 */
781 for (i = 0, j = 0; i < 8; i++, freg++) {
786 if (UCOP_SET_L) { /* load */
787 tmp = gen_ld32(addr, IS_USER(s));
788 ucf64_gen_st32(tmp, freg);
790 tmp = ucf64_gen_ld32(freg);
791 gen_st32(tmp, addr, IS_USER(s));
795 /* unnecessary to add after the last transfer */
797 tcg_gen_addi_i32(addr, addr, 4);
801 if (UCOP_SET_W) { /* write back */
803 if (!UCOP_SET_P) { /* post increment */
804 tcg_gen_addi_i32(addr, addr, 4);
805 } /* unnecessary to do anything when pre increment */
810 tcg_gen_addi_i32(addr, addr, -((n - 1) * 4));
814 tcg_gen_addi_i32(addr, addr, -(n * 4));
817 store_reg(s, UCOP_REG_N, addr);
823 /* UniCore-F64 mrc/mcr */
824 static void do_ucf64_trans(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
828 if ((insn & 0xfe0003ff) == 0xe2000000) {
829 /* control register */
830 if ((UCOP_REG_N != UC32_UCF64_FPSCR) || (UCOP_REG_D == 31)) {
836 gen_helper_ucf64_get_fpscr(tmp, cpu_env);
837 store_reg(s, UCOP_REG_D, tmp);
840 tmp = load_reg(s, UCOP_REG_D);
841 gen_helper_ucf64_set_fpscr(cpu_env, tmp);
847 if ((insn & 0xfe0003ff) == 0xe0000000) {
848 /* general register */
849 if (UCOP_REG_D == 31) {
852 if (UCOP_SET(24)) { /* MFF */
853 tmp = ucf64_gen_ld32(UCOP_REG_N);
854 store_reg(s, UCOP_REG_D, tmp);
856 tmp = load_reg(s, UCOP_REG_D);
857 ucf64_gen_st32(tmp, UCOP_REG_N);
861 if ((insn & 0xfb000000) == 0xe9000000) {
863 if (UCOP_REG_D != 31) {
866 if (UCOP_UCF64_COND & 0x8) {
871 tcg_gen_movi_i32(tmp, UCOP_UCF64_COND);
873 tcg_gen_ld_i64(cpu_F0d, cpu_env, ucf64_reg_offset(UCOP_REG_N));
874 tcg_gen_ld_i64(cpu_F1d, cpu_env, ucf64_reg_offset(UCOP_REG_M));
875 gen_helper_ucf64_cmpd(cpu_F0d, cpu_F1d, tmp, cpu_env);
877 tcg_gen_ld_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_N));
878 tcg_gen_ld_i32(cpu_F1s, cpu_env, ucf64_reg_offset(UCOP_REG_M));
879 gen_helper_ucf64_cmps(cpu_F0s, cpu_F1s, tmp, cpu_env);
887 /* UniCore-F64 convert instructions */
888 static void do_ucf64_fcvt(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
890 if (UCOP_UCF64_FMT == 3) {
893 if (UCOP_REG_N != 0) {
896 switch (UCOP_UCF64_FUNC) {
898 switch (UCOP_UCF64_FMT) {
900 tcg_gen_ld_i64(cpu_F0d, cpu_env, ucf64_reg_offset(UCOP_REG_M));
901 gen_helper_ucf64_df2sf(cpu_F0s, cpu_F0d, cpu_env);
902 tcg_gen_st_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_D));
905 tcg_gen_ld_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_M));
906 gen_helper_ucf64_si2sf(cpu_F0s, cpu_F0s, cpu_env);
907 tcg_gen_st_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_D));
915 switch (UCOP_UCF64_FMT) {
917 tcg_gen_ld_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_M));
918 gen_helper_ucf64_sf2df(cpu_F0d, cpu_F0s, cpu_env);
919 tcg_gen_st_i64(cpu_F0d, cpu_env, ucf64_reg_offset(UCOP_REG_D));
922 tcg_gen_ld_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_M));
923 gen_helper_ucf64_si2df(cpu_F0d, cpu_F0s, cpu_env);
924 tcg_gen_st_i64(cpu_F0d, cpu_env, ucf64_reg_offset(UCOP_REG_D));
932 switch (UCOP_UCF64_FMT) {
934 tcg_gen_ld_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_M));
935 gen_helper_ucf64_sf2si(cpu_F0s, cpu_F0s, cpu_env);
936 tcg_gen_st_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_D));
939 tcg_gen_ld_i64(cpu_F0d, cpu_env, ucf64_reg_offset(UCOP_REG_M));
940 gen_helper_ucf64_df2si(cpu_F0s, cpu_F0d, cpu_env);
941 tcg_gen_st_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_D));
953 /* UniCore-F64 compare instructions */
954 static void do_ucf64_fcmp(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
959 if (UCOP_REG_D != 0) {
965 tcg_gen_ld_i64(cpu_F0d, cpu_env, ucf64_reg_offset(UCOP_REG_N));
966 tcg_gen_ld_i64(cpu_F1d, cpu_env, ucf64_reg_offset(UCOP_REG_M));
967 /* gen_helper_ucf64_cmpd(cpu_F0d, cpu_F1d, cpu_env); */
969 tcg_gen_ld_i32(cpu_F0s, cpu_env, ucf64_reg_offset(UCOP_REG_N));
970 tcg_gen_ld_i32(cpu_F1s, cpu_env, ucf64_reg_offset(UCOP_REG_M));
971 /* gen_helper_ucf64_cmps(cpu_F0s, cpu_F1s, cpu_env); */
975 #define gen_helper_ucf64_movs(x, y) do { } while (0)
976 #define gen_helper_ucf64_movd(x, y) do { } while (0)
978 #define UCF64_OP1(name) do { \
979 if (UCOP_REG_N != 0) { \
982 switch (UCOP_UCF64_FMT) { \
984 tcg_gen_ld_i32(cpu_F0s, cpu_env, \
985 ucf64_reg_offset(UCOP_REG_M)); \
986 gen_helper_ucf64_##name##s(cpu_F0s, cpu_F0s); \
987 tcg_gen_st_i32(cpu_F0s, cpu_env, \
988 ucf64_reg_offset(UCOP_REG_D)); \
991 tcg_gen_ld_i64(cpu_F0d, cpu_env, \
992 ucf64_reg_offset(UCOP_REG_M)); \
993 gen_helper_ucf64_##name##d(cpu_F0d, cpu_F0d); \
994 tcg_gen_st_i64(cpu_F0d, cpu_env, \
995 ucf64_reg_offset(UCOP_REG_D)); \
1003 #define UCF64_OP2(name) do { \
1004 switch (UCOP_UCF64_FMT) { \
1006 tcg_gen_ld_i32(cpu_F0s, cpu_env, \
1007 ucf64_reg_offset(UCOP_REG_N)); \
1008 tcg_gen_ld_i32(cpu_F1s, cpu_env, \
1009 ucf64_reg_offset(UCOP_REG_M)); \
1010 gen_helper_ucf64_##name##s(cpu_F0s, \
1011 cpu_F0s, cpu_F1s, cpu_env); \
1012 tcg_gen_st_i32(cpu_F0s, cpu_env, \
1013 ucf64_reg_offset(UCOP_REG_D)); \
1016 tcg_gen_ld_i64(cpu_F0d, cpu_env, \
1017 ucf64_reg_offset(UCOP_REG_N)); \
1018 tcg_gen_ld_i64(cpu_F1d, cpu_env, \
1019 ucf64_reg_offset(UCOP_REG_M)); \
1020 gen_helper_ucf64_##name##d(cpu_F0d, \
1021 cpu_F0d, cpu_F1d, cpu_env); \
1022 tcg_gen_st_i64(cpu_F0d, cpu_env, \
1023 ucf64_reg_offset(UCOP_REG_D)); \
1031 /* UniCore-F64 data processing */
1032 static void do_ucf64_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1034 if (UCOP_UCF64_FMT == 3) {
1037 switch (UCOP_UCF64_FUNC) {
1064 /* Disassemble an F64 instruction */
1065 static void disas_ucf64_insn(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1067 if (!UCOP_SET(29)) {
1069 do_ucf64_ldst_m(env, s, insn);
1071 do_ucf64_ldst_i(env, s, insn);
1075 switch ((insn >> 26) & 0x3) {
1077 do_ucf64_datap(env, s, insn);
1083 do_ucf64_fcvt(env, s, insn);
1086 do_ucf64_fcmp(env, s, insn);
1090 do_ucf64_trans(env, s, insn);
1095 static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest)
1097 TranslationBlock *tb;
1100 if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
1102 gen_set_pc_im(dest);
1103 tcg_gen_exit_tb((tcg_target_long)tb + n);
1105 gen_set_pc_im(dest);
1110 static inline void gen_jmp(DisasContext *s, uint32_t dest)
1112 if (unlikely(s->singlestep_enabled)) {
1113 /* An indirect jump so that we still trigger the debug exception. */
1116 gen_goto_tb(s, 0, dest);
1117 s->is_jmp = DISAS_TB_JUMP;
1121 static inline void gen_mulxy(TCGv t0, TCGv t1, int x, int y)
1124 tcg_gen_sari_i32(t0, t0, 16);
1129 tcg_gen_sari_i32(t1, t1, 16);
1133 tcg_gen_mul_i32(t0, t0, t1);
1136 /* Returns nonzero if access to the PSR is not permitted. Marks t0 as dead. */
1137 static int gen_set_psr(DisasContext *s, uint32_t mask, int bsr, TCGv t0)
1141 /* ??? This is also undefined in system mode. */
1146 tmp = load_cpu_field(bsr);
1147 tcg_gen_andi_i32(tmp, tmp, ~mask);
1148 tcg_gen_andi_i32(t0, t0, mask);
1149 tcg_gen_or_i32(tmp, tmp, t0);
1150 store_cpu_field(tmp, bsr);
1152 gen_set_asr(t0, mask);
1159 /* Generate an old-style exception return. Marks pc as dead. */
1160 static void gen_exception_return(DisasContext *s, TCGv pc)
1163 store_reg(s, 31, pc);
1164 tmp = load_cpu_field(bsr);
1165 gen_set_asr(tmp, 0xffffffff);
1167 s->is_jmp = DISAS_UPDATE;
1170 static void disas_coproc_insn(CPUUniCore32State *env, DisasContext *s,
1173 switch (UCOP_CPNUM) {
1174 #ifndef CONFIG_USER_ONLY
1176 disas_cp0_insn(env, s, insn);
1179 disas_ocd_insn(env, s, insn);
1183 disas_ucf64_insn(env, s, insn);
1186 /* Unknown coprocessor. */
1187 cpu_abort(env, "Unknown coprocessor!");
1191 /* data processing instructions */
1192 static void do_datap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1198 if (UCOP_OPCODES == 0x0f || UCOP_OPCODES == 0x0d) {
1199 if (UCOP_SET(23)) { /* CMOV instructions */
1200 if ((UCOP_CMOV_COND == 0xe) || (UCOP_CMOV_COND == 0xf)) {
1203 /* if not always execute, we generate a conditional jump to
1205 s->condlabel = gen_new_label();
1206 gen_test_cc(UCOP_CMOV_COND ^ 1, s->condlabel);
1211 logic_cc = table_logic_cc[UCOP_OPCODES] & (UCOP_SET_S >> 24);
1215 /* immediate operand */
1218 val = (val >> UCOP_SH_IM) | (val << (32 - UCOP_SH_IM));
1221 tcg_gen_movi_i32(tmp2, val);
1222 if (logic_cc && UCOP_SH_IM) {
1223 gen_set_CF_bit31(tmp2);
1227 tmp2 = load_reg(s, UCOP_REG_M);
1229 tmp = load_reg(s, UCOP_REG_S);
1230 gen_uc32_shift_reg(tmp2, UCOP_SH_OP, tmp, logic_cc);
1232 gen_uc32_shift_im(tmp2, UCOP_SH_OP, UCOP_SH_IM, logic_cc);
1236 if (UCOP_OPCODES != 0x0f && UCOP_OPCODES != 0x0d) {
1237 tmp = load_reg(s, UCOP_REG_N);
1242 switch (UCOP_OPCODES) {
1244 tcg_gen_and_i32(tmp, tmp, tmp2);
1248 store_reg_bx(s, UCOP_REG_D, tmp);
1251 tcg_gen_xor_i32(tmp, tmp, tmp2);
1255 store_reg_bx(s, UCOP_REG_D, tmp);
1258 if (UCOP_SET_S && UCOP_REG_D == 31) {
1259 /* SUBS r31, ... is used for exception return. */
1263 gen_helper_sub_cc(tmp, cpu_env, tmp, tmp2);
1264 gen_exception_return(s, tmp);
1267 gen_helper_sub_cc(tmp, cpu_env, tmp, tmp2);
1269 tcg_gen_sub_i32(tmp, tmp, tmp2);
1271 store_reg_bx(s, UCOP_REG_D, tmp);
1276 gen_helper_sub_cc(tmp, cpu_env, tmp2, tmp);
1278 tcg_gen_sub_i32(tmp, tmp2, tmp);
1280 store_reg_bx(s, UCOP_REG_D, tmp);
1284 gen_helper_add_cc(tmp, cpu_env, tmp, tmp2);
1286 tcg_gen_add_i32(tmp, tmp, tmp2);
1288 store_reg_bx(s, UCOP_REG_D, tmp);
1292 gen_helper_adc_cc(tmp, cpu_env, tmp, tmp2);
1294 gen_add_carry(tmp, tmp, tmp2);
1296 store_reg_bx(s, UCOP_REG_D, tmp);
1300 gen_helper_sbc_cc(tmp, cpu_env, tmp, tmp2);
1302 gen_sub_carry(tmp, tmp, tmp2);
1304 store_reg_bx(s, UCOP_REG_D, tmp);
1308 gen_helper_sbc_cc(tmp, cpu_env, tmp2, tmp);
1310 gen_sub_carry(tmp, tmp2, tmp);
1312 store_reg_bx(s, UCOP_REG_D, tmp);
1316 tcg_gen_and_i32(tmp, tmp, tmp2);
1323 tcg_gen_xor_i32(tmp, tmp, tmp2);
1330 gen_helper_sub_cc(tmp, cpu_env, tmp, tmp2);
1336 gen_helper_add_cc(tmp, cpu_env, tmp, tmp2);
1341 tcg_gen_or_i32(tmp, tmp, tmp2);
1345 store_reg_bx(s, UCOP_REG_D, tmp);
1348 if (logic_cc && UCOP_REG_D == 31) {
1349 /* MOVS r31, ... is used for exception return. */
1353 gen_exception_return(s, tmp2);
1358 store_reg_bx(s, UCOP_REG_D, tmp2);
1362 tcg_gen_andc_i32(tmp, tmp, tmp2);
1366 store_reg_bx(s, UCOP_REG_D, tmp);
1370 tcg_gen_not_i32(tmp2, tmp2);
1374 store_reg_bx(s, UCOP_REG_D, tmp2);
1377 if (UCOP_OPCODES != 0x0f && UCOP_OPCODES != 0x0d) {
1383 static void do_mult(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1385 TCGv tmp, tmp2, tmp3, tmp4;
1389 tmp = load_reg(s, UCOP_REG_M);
1390 tmp2 = load_reg(s, UCOP_REG_N);
1392 tcg_gen_muls2_i32(tmp, tmp2, tmp, tmp2);
1394 tcg_gen_mulu2_i32(tmp, tmp2, tmp, tmp2);
1396 if (UCOP_SET(25)) { /* mult accumulate */
1397 tmp3 = load_reg(s, UCOP_REG_LO);
1398 tmp4 = load_reg(s, UCOP_REG_HI);
1399 tcg_gen_add2_i32(tmp, tmp2, tmp, tmp2, tmp3, tmp4);
1403 store_reg(s, UCOP_REG_LO, tmp);
1404 store_reg(s, UCOP_REG_HI, tmp2);
1407 tmp = load_reg(s, UCOP_REG_M);
1408 tmp2 = load_reg(s, UCOP_REG_N);
1409 tcg_gen_mul_i32(tmp, tmp, tmp2);
1413 tmp2 = load_reg(s, UCOP_REG_S);
1414 tcg_gen_add_i32(tmp, tmp, tmp2);
1420 store_reg(s, UCOP_REG_D, tmp);
1424 /* miscellaneous instructions */
1425 static void do_misc(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1430 if ((insn & 0xffffffe0) == 0x10ffc120) {
1431 /* Trivial implementation equivalent to bx. */
1432 tmp = load_reg(s, UCOP_REG_M);
1437 if ((insn & 0xfbffc000) == 0x30ffc000) {
1438 /* PSR = immediate */
1441 val = (val >> UCOP_SH_IM) | (val << (32 - UCOP_SH_IM));
1444 tcg_gen_movi_i32(tmp, val);
1445 if (gen_set_psr(s, ~ASR_RESERVED, UCOP_SET_B, tmp)) {
1451 if ((insn & 0xfbffffe0) == 0x12ffc020) {
1452 /* PSR.flag = reg */
1453 tmp = load_reg(s, UCOP_REG_M);
1454 if (gen_set_psr(s, ASR_NZCV, UCOP_SET_B, tmp)) {
1460 if ((insn & 0xfbffffe0) == 0x10ffc020) {
1462 tmp = load_reg(s, UCOP_REG_M);
1463 if (gen_set_psr(s, ~ASR_RESERVED, UCOP_SET_B, tmp)) {
1469 if ((insn & 0xfbf83fff) == 0x10f80000) {
1475 tmp = load_cpu_field(bsr);
1478 gen_helper_asr_read(tmp, cpu_env);
1480 store_reg(s, UCOP_REG_D, tmp);
1484 if ((insn & 0xfbf83fe0) == 0x12f80120) {
1486 tmp = load_reg(s, UCOP_REG_M);
1488 gen_helper_clo(tmp, tmp);
1490 gen_helper_clz(tmp, tmp);
1492 store_reg(s, UCOP_REG_D, tmp);
1500 /* load/store I_offset and R_offset */
1501 static void do_ldst_ir(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1503 unsigned int mmu_idx;
1507 tmp2 = load_reg(s, UCOP_REG_N);
1508 mmu_idx = (IS_USER(s) || (!UCOP_SET_P && UCOP_SET_W));
1512 gen_add_data_offset(s, insn, tmp2);
1518 tmp = gen_ld8u(tmp2, mmu_idx);
1520 tmp = gen_ld32(tmp2, mmu_idx);
1524 tmp = load_reg(s, UCOP_REG_D);
1526 gen_st8(tmp, tmp2, mmu_idx);
1528 gen_st32(tmp, tmp2, mmu_idx);
1532 gen_add_data_offset(s, insn, tmp2);
1533 store_reg(s, UCOP_REG_N, tmp2);
1534 } else if (UCOP_SET_W) {
1535 store_reg(s, UCOP_REG_N, tmp2);
1540 /* Complete the load. */
1541 if (UCOP_REG_D == 31) {
1544 store_reg(s, UCOP_REG_D, tmp);
1549 /* SWP instruction */
1550 static void do_swap(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1556 if ((insn & 0xff003fe0) != 0x40000120) {
1560 /* ??? This is not really atomic. However we know
1561 we never have multiple CPUs running in parallel,
1562 so it is good enough. */
1563 addr = load_reg(s, UCOP_REG_N);
1564 tmp = load_reg(s, UCOP_REG_M);
1566 tmp2 = gen_ld8u(addr, IS_USER(s));
1567 gen_st8(tmp, addr, IS_USER(s));
1569 tmp2 = gen_ld32(addr, IS_USER(s));
1570 gen_st32(tmp, addr, IS_USER(s));
1573 store_reg(s, UCOP_REG_D, tmp2);
1576 /* load/store hw/sb */
1577 static void do_ldst_hwsb(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1582 if (UCOP_SH_OP == 0) {
1583 do_swap(env, s, insn);
1587 addr = load_reg(s, UCOP_REG_N);
1589 gen_add_datah_offset(s, insn, addr);
1592 if (UCOP_SET_L) { /* load */
1593 switch (UCOP_SH_OP) {
1595 tmp = gen_ld16u(addr, IS_USER(s));
1598 tmp = gen_ld8s(addr, IS_USER(s));
1600 default: /* see do_swap */
1602 tmp = gen_ld16s(addr, IS_USER(s));
1605 } else { /* store */
1606 if (UCOP_SH_OP != 1) {
1609 tmp = load_reg(s, UCOP_REG_D);
1610 gen_st16(tmp, addr, IS_USER(s));
1612 /* Perform base writeback before the loaded value to
1613 ensure correct behavior with overlapping index registers. */
1615 gen_add_datah_offset(s, insn, addr);
1616 store_reg(s, UCOP_REG_N, addr);
1617 } else if (UCOP_SET_W) {
1618 store_reg(s, UCOP_REG_N, addr);
1623 /* Complete the load. */
1624 store_reg(s, UCOP_REG_D, tmp);
1628 /* load/store multiple words */
1629 static void do_ldst_m(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1631 unsigned int val, i, mmu_idx;
1632 int j, n, reg, user, loaded_base;
1641 /* XXX: store correct base if write back */
1643 if (UCOP_SET_B) { /* S bit in instruction table */
1645 ILLEGAL; /* only usable in supervisor mode */
1647 if (UCOP_SET(18) == 0) { /* pc reg */
1652 mmu_idx = (IS_USER(s) || (!UCOP_SET_P && UCOP_SET_W));
1653 addr = load_reg(s, UCOP_REG_N);
1655 /* compute total size */
1657 TCGV_UNUSED(loaded_var);
1659 for (i = 0; i < 6; i++) {
1664 for (i = 9; i < 19; i++) {
1669 /* XXX: test invalid n == 0 case ? */
1673 tcg_gen_addi_i32(addr, addr, 4);
1675 /* post increment */
1680 tcg_gen_addi_i32(addr, addr, -(n * 4));
1682 /* post decrement */
1684 tcg_gen_addi_i32(addr, addr, -((n - 1) * 4));
1690 reg = UCOP_SET(6) ? 16 : 0;
1691 for (i = 0; i < 19; i++, reg++) {
1696 if (UCOP_SET_L) { /* load */
1697 tmp = gen_ld32(addr, mmu_idx);
1701 tmp2 = tcg_const_i32(reg);
1702 gen_helper_set_user_reg(cpu_env, tmp2, tmp);
1703 tcg_temp_free_i32(tmp2);
1705 } else if (reg == UCOP_REG_N) {
1709 store_reg(s, reg, tmp);
1711 } else { /* store */
1713 /* special case: r31 = PC + 4 */
1716 tcg_gen_movi_i32(tmp, val);
1719 tmp2 = tcg_const_i32(reg);
1720 gen_helper_get_user_reg(tmp, cpu_env, tmp2);
1721 tcg_temp_free_i32(tmp2);
1723 tmp = load_reg(s, reg);
1725 gen_st32(tmp, addr, mmu_idx);
1728 /* no need to add after the last transfer */
1730 tcg_gen_addi_i32(addr, addr, 4);
1734 if (UCOP_SET_W) { /* write back */
1739 /* post increment */
1740 tcg_gen_addi_i32(addr, addr, 4);
1746 tcg_gen_addi_i32(addr, addr, -((n - 1) * 4));
1749 /* post decrement */
1750 tcg_gen_addi_i32(addr, addr, -(n * 4));
1753 store_reg(s, UCOP_REG_N, addr);
1758 store_reg(s, UCOP_REG_N, loaded_var);
1760 if (UCOP_SET_B && !user) {
1761 /* Restore ASR from BSR. */
1762 tmp = load_cpu_field(bsr);
1763 gen_set_asr(tmp, 0xffffffff);
1765 s->is_jmp = DISAS_UPDATE;
1769 /* branch (and link) */
1770 static void do_branch(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
1776 if (UCOP_COND == 0xf) {
1780 if (UCOP_COND != 0xe) {
1781 /* if not always execute, we generate a conditional jump to
1783 s->condlabel = gen_new_label();
1784 gen_test_cc(UCOP_COND ^ 1, s->condlabel);
1788 val = (int32_t)s->pc;
1791 tcg_gen_movi_i32(tmp, val);
1792 store_reg(s, 30, tmp);
1794 offset = (((int32_t)insn << 8) >> 8);
1795 val += (offset << 2); /* unicore is pc+4 */
1799 static void disas_uc32_insn(CPUUniCore32State *env, DisasContext *s)
1803 if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
1804 tcg_gen_debug_insn_start(s->pc);
1807 insn = cpu_ldl_code(env, s->pc);
1810 /* UniCore instructions class:
1811 * AAAB BBBC xxxx xxxx xxxx xxxD xxEx xxxx
1812 * AAA : see switch case
1813 * BBBB : opcodes or cond or PUBW
1818 switch (insn >> 29) {
1820 if (UCOP_SET(5) && UCOP_SET(8) && !UCOP_SET(28)) {
1821 do_mult(env, s, insn);
1826 do_misc(env, s, insn);
1830 if (((UCOP_OPCODES >> 2) == 2) && !UCOP_SET_S) {
1831 do_misc(env, s, insn);
1834 do_datap(env, s, insn);
1838 if (UCOP_SET(8) && UCOP_SET(5)) {
1839 do_ldst_hwsb(env, s, insn);
1842 if (UCOP_SET(8) || UCOP_SET(5)) {
1846 do_ldst_ir(env, s, insn);
1851 ILLEGAL; /* extended instructions */
1853 do_ldst_m(env, s, insn);
1856 do_branch(env, s, insn);
1860 disas_coproc_insn(env, s, insn);
1863 if (!UCOP_SET(28)) {
1864 disas_coproc_insn(env, s, insn);
1867 if ((insn & 0xff000000) == 0xff000000) { /* syscall */
1868 gen_set_pc_im(s->pc);
1869 s->is_jmp = DISAS_SYSCALL;
1876 /* generate intermediate code in gen_opc_buf and gen_opparam_buf for
1877 basic block 'tb'. If search_pc is TRUE, also generate PC
1878 information for each intermediate instruction. */
1879 static inline void gen_intermediate_code_internal(CPUUniCore32State *env,
1880 TranslationBlock *tb, int search_pc)
1882 DisasContext dc1, *dc = &dc1;
1884 uint16_t *gen_opc_end;
1886 target_ulong pc_start;
1887 uint32_t next_page_start;
1891 /* generate intermediate code */
1898 gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
1900 dc->is_jmp = DISAS_NEXT;
1902 dc->singlestep_enabled = env->singlestep_enabled;
1904 cpu_F0s = tcg_temp_new_i32();
1905 cpu_F1s = tcg_temp_new_i32();
1906 cpu_F0d = tcg_temp_new_i64();
1907 cpu_F1d = tcg_temp_new_i64();
1908 next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
1911 max_insns = tb->cflags & CF_COUNT_MASK;
1912 if (max_insns == 0) {
1913 max_insns = CF_COUNT_MASK;
1916 #ifndef CONFIG_USER_ONLY
1917 if ((env->uncached_asr & ASR_M) == ASR_MODE_USER) {
1926 if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
1927 QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
1928 if (bp->pc == dc->pc) {
1929 gen_set_pc_im(dc->pc);
1930 gen_exception(EXCP_DEBUG);
1931 dc->is_jmp = DISAS_JUMP;
1932 /* Advance PC so that clearing the breakpoint will
1933 invalidate this TB. */
1934 dc->pc += 2; /* FIXME */
1935 goto done_generating;
1941 j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
1945 tcg_ctx.gen_opc_instr_start[lj++] = 0;
1948 tcg_ctx.gen_opc_pc[lj] = dc->pc;
1949 tcg_ctx.gen_opc_instr_start[lj] = 1;
1950 tcg_ctx.gen_opc_icount[lj] = num_insns;
1953 if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) {
1957 disas_uc32_insn(env, dc);
1960 fprintf(stderr, "Internal resource leak before %08x\n", dc->pc);
1964 if (dc->condjmp && !dc->is_jmp) {
1965 gen_set_label(dc->condlabel);
1968 /* Translation stops when a conditional branch is encountered.
1969 * Otherwise the subsequent code could get translated several times.
1970 * Also stop translation when a page boundary is reached. This
1971 * ensures prefetch aborts occur at the right place. */
1973 } while (!dc->is_jmp && tcg_ctx.gen_opc_ptr < gen_opc_end &&
1974 !env->singlestep_enabled &&
1976 dc->pc < next_page_start &&
1977 num_insns < max_insns);
1979 if (tb->cflags & CF_LAST_IO) {
1981 /* FIXME: This can theoretically happen with self-modifying
1983 cpu_abort(env, "IO on conditional branch instruction");
1988 /* At this stage dc->condjmp will only be set when the skipped
1989 instruction was a conditional branch or trap, and the PC has
1990 already been written. */
1991 if (unlikely(env->singlestep_enabled)) {
1992 /* Make sure the pc is updated, and raise a debug exception. */
1994 if (dc->is_jmp == DISAS_SYSCALL) {
1995 gen_exception(UC32_EXCP_PRIV);
1997 gen_exception(EXCP_DEBUG);
1999 gen_set_label(dc->condlabel);
2001 if (dc->condjmp || !dc->is_jmp) {
2002 gen_set_pc_im(dc->pc);
2005 if (dc->is_jmp == DISAS_SYSCALL && !dc->condjmp) {
2006 gen_exception(UC32_EXCP_PRIV);
2008 gen_exception(EXCP_DEBUG);
2011 /* While branches must always occur at the end of an IT block,
2012 there are a few other things that can cause us to terminate
2013 the TB in the middel of an IT block:
2014 - Exception generating instructions (bkpt, swi, undefined).
2016 - Hardware watchpoints.
2017 Hardware breakpoints have already been handled and skip this code.
2019 switch (dc->is_jmp) {
2021 gen_goto_tb(dc, 1, dc->pc);
2026 /* indicate that the hash table must be used to find the next TB */
2030 /* nothing more to generate */
2033 gen_exception(UC32_EXCP_PRIV);
2037 gen_set_label(dc->condlabel);
2038 gen_goto_tb(dc, 1, dc->pc);
2044 gen_tb_end(tb, num_insns);
2045 *tcg_ctx.gen_opc_ptr = INDEX_op_end;
2048 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
2049 qemu_log("----------------\n");
2050 qemu_log("IN: %s\n", lookup_symbol(pc_start));
2051 log_target_disas(env, pc_start, dc->pc - pc_start, 0);
2056 j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
2059 tcg_ctx.gen_opc_instr_start[lj++] = 0;
2062 tb->size = dc->pc - pc_start;
2063 tb->icount = num_insns;
2067 void gen_intermediate_code(CPUUniCore32State *env, TranslationBlock *tb)
2069 gen_intermediate_code_internal(env, tb, 0);
2072 void gen_intermediate_code_pc(CPUUniCore32State *env, TranslationBlock *tb)
2074 gen_intermediate_code_internal(env, tb, 1);
2077 static const char *cpu_mode_names[16] = {
2078 "USER", "REAL", "INTR", "PRIV", "UM14", "UM15", "UM16", "TRAP",
2079 "UM18", "UM19", "UM1A", "EXTN", "UM1C", "UM1D", "UM1E", "SUSR"
2082 #undef UCF64_DUMP_STATE
2083 #ifdef UCF64_DUMP_STATE
2084 static void cpu_dump_state_ucf64(CPUUniCore32State *env, FILE *f,
2085 fprintf_function cpu_fprintf, int flags)
2093 /* ??? This assumes float64 and double have the same layout.
2094 Oh well, it's only debug dumps. */
2100 for (i = 0; i < 16; i++) {
2101 d.d = env->ucf64.regs[i];
2105 cpu_fprintf(f, "s%02d=%08x(%8g) s%02d=%08x(%8g)",
2106 i * 2, (int)s0.i, s0.s,
2107 i * 2 + 1, (int)s1.i, s1.s);
2108 cpu_fprintf(f, " d%02d=%" PRIx64 "(%8g)\n",
2109 i, (uint64_t)d0.f64, d0.d);
2111 cpu_fprintf(f, "FPSCR: %08x\n", (int)env->ucf64.xregs[UC32_UCF64_FPSCR]);
2114 #define cpu_dump_state_ucf64(env, file, pr, flags) do { } while (0)
2117 void cpu_dump_state(CPUUniCore32State *env, FILE *f,
2118 fprintf_function cpu_fprintf, int flags)
2123 for (i = 0; i < 32; i++) {
2124 cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]);
2126 cpu_fprintf(f, "\n");
2128 cpu_fprintf(f, " ");
2131 psr = cpu_asr_read(env);
2132 cpu_fprintf(f, "PSR=%08x %c%c%c%c %s\n",
2134 psr & (1 << 31) ? 'N' : '-',
2135 psr & (1 << 30) ? 'Z' : '-',
2136 psr & (1 << 29) ? 'C' : '-',
2137 psr & (1 << 28) ? 'V' : '-',
2138 cpu_mode_names[psr & 0xf]);
2140 cpu_dump_state_ucf64(env, f, cpu_fprintf, flags);
2143 void restore_state_to_opc(CPUUniCore32State *env, TranslationBlock *tb, int pc_pos)
2145 env->regs[31] = tcg_ctx.gen_opc_pc[pc_pos];