diff options
Diffstat (limited to 'target-xtensa/translate.c')
| -rw-r--r-- | target-xtensa/translate.c | 2414 |
1 files changed, 2414 insertions, 0 deletions
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c new file mode 100644 index 0000000000..93a807e8c0 --- /dev/null +++ b/target-xtensa/translate.c @@ -0,0 +1,2414 @@ +/* + * Xtensa ISA: + * http://www.tensilica.com/products/literature-docs/documentation/xtensa-isa-databook.htm + * + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <stdio.h> + +#include "cpu.h" +#include "exec-all.h" +#include "disas.h" +#include "tcg-op.h" +#include "qemu-log.h" +#include "sysemu.h" + +#include "helpers.h" +#define GEN_HELPER 1 +#include "helpers.h" + +typedef struct DisasContext { + const XtensaConfig *config; + TranslationBlock *tb; + uint32_t pc; + uint32_t next_pc; + int cring; + int ring; + uint32_t lbeg; + uint32_t lend; + TCGv_i32 litbase; + int is_jmp; + int singlestep_enabled; + + bool sar_5bit; + bool sar_m32_5bit; + bool sar_m32_allocated; + TCGv_i32 sar_m32; + + uint32_t ccount_delta; + unsigned used_window; +} DisasContext; + +static TCGv_ptr cpu_env; +static TCGv_i32 cpu_pc; +static TCGv_i32 cpu_R[16]; +static TCGv_i32 cpu_SR[256]; +static TCGv_i32 cpu_UR[256]; + +#include "gen-icount.h" + +static const char * const sregnames[256] = { + [LBEG] = "LBEG", + [LEND] = "LEND", + [LCOUNT] = "LCOUNT", + [SAR] = "SAR", + [BR] = "BR", + [LITBASE] = "LITBASE", + [SCOMPARE1] = "SCOMPARE1", + [WINDOW_BASE] = "WINDOW_BASE", + [WINDOW_START] = "WINDOW_START", + [PTEVADDR] = "PTEVADDR", + [RASID] = "RASID", + [ITLBCFG] = "ITLBCFG", + [DTLBCFG] = "DTLBCFG", + [EPC1] = "EPC1", + [EPC1 + 1] = "EPC2", + [EPC1 + 2] = "EPC3", + [EPC1 + 3] = "EPC4", + [EPC1 + 4] = "EPC5", + [EPC1 + 5] = "EPC6", + [EPC1 + 6] = "EPC7", + [DEPC] = "DEPC", + [EPS2] = "EPS2", + [EPS2 + 1] = "EPS3", + [EPS2 + 2] = "EPS4", + [EPS2 + 3] = "EPS5", + [EPS2 + 4] = "EPS6", + [EPS2 + 5] = "EPS7", + [EXCSAVE1] = "EXCSAVE1", + [EXCSAVE1 + 1] = "EXCSAVE2", + [EXCSAVE1 + 2] = "EXCSAVE3", + [EXCSAVE1 + 3] = "EXCSAVE4", + [EXCSAVE1 + 4] = "EXCSAVE5", + [EXCSAVE1 + 5] = "EXCSAVE6", + [EXCSAVE1 + 6] = "EXCSAVE7", + [CPENABLE] = "CPENABLE", + [INTSET] = "INTSET", + [INTCLEAR] = "INTCLEAR", + [INTENABLE] = "INTENABLE", + [PS] = "PS", + [VECBASE] = "VECBASE", + [EXCCAUSE] = "EXCCAUSE", + [CCOUNT] = "CCOUNT", + [PRID] = "PRID", + [EXCVADDR] = "EXCVADDR", + [CCOMPARE] = "CCOMPARE0", + [CCOMPARE + 1] = "CCOMPARE1", + [CCOMPARE + 2] = "CCOMPARE2", +}; + +static const char * const uregnames[256] = { + [THREADPTR] = "THREADPTR", + [FCR] = "FCR", + [FSR] = "FSR", +}; + +void xtensa_translate_init(void) +{ + static const char * const regnames[] = { + "ar0", "ar1", "ar2", "ar3", + "ar4", "ar5", "ar6", "ar7", + "ar8", "ar9", "ar10", "ar11", + "ar12", "ar13", "ar14", "ar15", + }; + int i; + + cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); + cpu_pc = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUState, pc), "pc"); + + for (i = 0; i < 16; i++) { + cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUState, regs[i]), + regnames[i]); + } + + for (i = 0; i < 256; ++i) { + if (sregnames[i]) { + cpu_SR[i] = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUState, sregs[i]), + sregnames[i]); + } + } + + for (i = 0; i < 256; ++i) { + if (uregnames[i]) { + cpu_UR[i] = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUState, uregs[i]), + uregnames[i]); + } + } +#define GEN_HELPER 2 +#include "helpers.h" +} + +static inline bool option_bits_enabled(DisasContext *dc, uint64_t opt) +{ + return xtensa_option_bits_enabled(dc->config, opt); +} + +static inline bool option_enabled(DisasContext *dc, int opt) +{ + return xtensa_option_enabled(dc->config, opt); +} + +static void init_litbase(DisasContext *dc) +{ + if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { + dc->litbase = tcg_temp_local_new_i32(); + tcg_gen_andi_i32(dc->litbase, cpu_SR[LITBASE], 0xfffff000); + } +} + +static void reset_litbase(DisasContext *dc) +{ + if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { + tcg_temp_free(dc->litbase); + } +} + +static void init_sar_tracker(DisasContext *dc) +{ + dc->sar_5bit = false; + dc->sar_m32_5bit = false; + dc->sar_m32_allocated = false; +} + +static void reset_sar_tracker(DisasContext *dc) +{ + if (dc->sar_m32_allocated) { + tcg_temp_free(dc->sar_m32); + } +} + +static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa) +{ + tcg_gen_andi_i32(cpu_SR[SAR], sa, 0x1f); + if (dc->sar_m32_5bit) { + tcg_gen_discard_i32(dc->sar_m32); + } + dc->sar_5bit = true; + dc->sar_m32_5bit = false; +} + +static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa) +{ + TCGv_i32 tmp = tcg_const_i32(32); + if (!dc->sar_m32_allocated) { + dc->sar_m32 = tcg_temp_local_new_i32(); + dc->sar_m32_allocated = true; + } + tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f); + tcg_gen_sub_i32(cpu_SR[SAR], tmp, dc->sar_m32); + dc->sar_5bit = false; + dc->sar_m32_5bit = true; + tcg_temp_free(tmp); +} + +static void gen_advance_ccount(DisasContext *dc) +{ + if (dc->ccount_delta > 0) { + TCGv_i32 tmp = tcg_const_i32(dc->ccount_delta); + dc->ccount_delta = 0; + gen_helper_advance_ccount(tmp); + tcg_temp_free(tmp); + } +} + +static void reset_used_window(DisasContext *dc) +{ + dc->used_window = 0; +} + +static void gen_exception(DisasContext *dc, int excp) +{ + TCGv_i32 tmp = tcg_const_i32(excp); + gen_advance_ccount(dc); + gen_helper_exception(tmp); + tcg_temp_free(tmp); +} + +static void gen_exception_cause(DisasContext *dc, uint32_t cause) +{ + TCGv_i32 tpc = tcg_const_i32(dc->pc); + TCGv_i32 tcause = tcg_const_i32(cause); + gen_advance_ccount(dc); + gen_helper_exception_cause(tpc, tcause); + tcg_temp_free(tpc); + tcg_temp_free(tcause); +} + +static void gen_exception_cause_vaddr(DisasContext *dc, uint32_t cause, + TCGv_i32 vaddr) +{ + TCGv_i32 tpc = tcg_const_i32(dc->pc); + TCGv_i32 tcause = tcg_const_i32(cause); + gen_advance_ccount(dc); + gen_helper_exception_cause_vaddr(tpc, tcause, vaddr); + tcg_temp_free(tpc); + tcg_temp_free(tcause); +} + +static void gen_check_privilege(DisasContext *dc) +{ + if (dc->cring) { + gen_exception_cause(dc, PRIVILEGED_CAUSE); + } +} + +static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot) +{ + tcg_gen_mov_i32(cpu_pc, dest); + if (dc->singlestep_enabled) { + gen_exception(dc, EXCP_DEBUG); + } else { + gen_advance_ccount(dc); + if (slot >= 0) { + tcg_gen_goto_tb(slot); + tcg_gen_exit_tb((tcg_target_long)dc->tb + slot); + } else { + tcg_gen_exit_tb(0); + } + } + dc->is_jmp = DISAS_UPDATE; +} + +static void gen_jump(DisasContext *dc, TCGv dest) +{ + gen_jump_slot(dc, dest, -1); +} + +static void gen_jumpi(DisasContext *dc, uint32_t dest, int slot) +{ + TCGv_i32 tmp = tcg_const_i32(dest); + if (((dc->pc ^ dest) & TARGET_PAGE_MASK) != 0) { + slot = -1; + } + gen_jump_slot(dc, tmp, slot); + tcg_temp_free(tmp); +} + +static void gen_callw_slot(DisasContext *dc, int callinc, TCGv_i32 dest, + int slot) +{ + TCGv_i32 tcallinc = tcg_const_i32(callinc); + + tcg_gen_deposit_i32(cpu_SR[PS], cpu_SR[PS], + tcallinc, PS_CALLINC_SHIFT, PS_CALLINC_LEN); + tcg_temp_free(tcallinc); + tcg_gen_movi_i32(cpu_R[callinc << 2], + (callinc << 30) | (dc->next_pc & 0x3fffffff)); + gen_jump_slot(dc, dest, slot); +} + +static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest) +{ + gen_callw_slot(dc, callinc, dest, -1); +} + +static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot) +{ + TCGv_i32 tmp = tcg_const_i32(dest); + if (((dc->pc ^ dest) & TARGET_PAGE_MASK) != 0) { + slot = -1; + } + gen_callw_slot(dc, callinc, tmp, slot); + tcg_temp_free(tmp); +} + +static bool gen_check_loop_end(DisasContext *dc, int slot) +{ + if (option_enabled(dc, XTENSA_OPTION_LOOP) && + !(dc->tb->flags & XTENSA_TBFLAG_EXCM) && + dc->next_pc == dc->lend) { + int label = gen_new_label(); + + tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label); + tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1); + gen_jumpi(dc, dc->lbeg, slot); + gen_set_label(label); + gen_jumpi(dc, dc->next_pc, -1); + return true; + } + return false; +} + +static void gen_jumpi_check_loop_end(DisasContext *dc, int slot) +{ + if (!gen_check_loop_end(dc, slot)) { + gen_jumpi(dc, dc->next_pc, slot); + } +} + +static void gen_brcond(DisasContext *dc, TCGCond cond, + TCGv_i32 t0, TCGv_i32 t1, uint32_t offset) +{ + int label = gen_new_label(); + + tcg_gen_brcond_i32(cond, t0, t1, label); + gen_jumpi_check_loop_end(dc, 0); + gen_set_label(label); + gen_jumpi(dc, dc->pc + offset, 1); +} + +static void gen_brcondi(DisasContext *dc, TCGCond cond, + TCGv_i32 t0, uint32_t t1, uint32_t offset) +{ + TCGv_i32 tmp = tcg_const_i32(t1); + gen_brcond(dc, cond, t0, tmp, offset); + tcg_temp_free(tmp); +} + +static void gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr) +{ + gen_advance_ccount(dc); + tcg_gen_mov_i32(d, cpu_SR[sr]); +} + +static void gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr) +{ + tcg_gen_shri_i32(d, cpu_SR[EXCVADDR], 10); + tcg_gen_or_i32(d, d, cpu_SR[sr]); + tcg_gen_andi_i32(d, d, 0xfffffffc); +} + +static void gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr) +{ + static void (* const rsr_handler[256])(DisasContext *dc, + TCGv_i32 d, uint32_t sr) = { + [CCOUNT] = gen_rsr_ccount, + [PTEVADDR] = gen_rsr_ptevaddr, + }; + + if (sregnames[sr]) { + if (rsr_handler[sr]) { + rsr_handler[sr](dc, d, sr); + } else { + tcg_gen_mov_i32(d, cpu_SR[sr]); + } + } else { + qemu_log("RSR %d not implemented, ", sr); + } +} + +static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + gen_helper_wsr_lbeg(s); +} + +static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + gen_helper_wsr_lend(s); +} + +static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f); + if (dc->sar_m32_5bit) { + tcg_gen_discard_i32(dc->sar_m32); + } + dc->sar_5bit = false; + dc->sar_m32_5bit = false; +} + +static void gen_wsr_br(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + tcg_gen_andi_i32(cpu_SR[sr], s, 0xffff); +} + +static void gen_wsr_litbase(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + tcg_gen_andi_i32(cpu_SR[sr], s, 0xfffff001); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + gen_helper_wsr_windowbase(v); + reset_used_window(dc); +} + +static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_mov_i32(cpu_SR[sr], v); + reset_used_window(dc); +} + +static void gen_wsr_ptevaddr(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, 0xffc00000); +} + +static void gen_wsr_rasid(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + gen_helper_wsr_rasid(v); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_tlbcfg(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, 0x01130000); +} + +static void gen_wsr_intset(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, + dc->config->inttype_mask[INTTYPE_SOFTWARE]); + gen_helper_check_interrupts(cpu_env); + gen_jumpi_check_loop_end(dc, 0); +} + +static void gen_wsr_intclear(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_andi_i32(tmp, v, + dc->config->inttype_mask[INTTYPE_EDGE] | + dc->config->inttype_mask[INTTYPE_NMI] | + dc->config->inttype_mask[INTTYPE_SOFTWARE]); + tcg_gen_andc_i32(cpu_SR[INTSET], cpu_SR[INTSET], tmp); + tcg_temp_free(tmp); + gen_helper_check_interrupts(cpu_env); +} + +static void gen_wsr_intenable(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_mov_i32(cpu_SR[sr], v); + gen_helper_check_interrupts(cpu_env); + gen_jumpi_check_loop_end(dc, 0); +} + +static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB | + PS_UM | PS_EXCM | PS_INTLEVEL; + + if (option_enabled(dc, XTENSA_OPTION_MMU)) { + mask |= PS_RING; + } + tcg_gen_andi_i32(cpu_SR[sr], v, mask); + reset_used_window(dc); + gen_helper_check_interrupts(cpu_env); + /* This can change mmu index and tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_prid(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ +} + +static void gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + uint32_t id = sr - CCOMPARE; + if (id < dc->config->nccompare) { + uint32_t int_bit = 1 << dc->config->timerint[id]; + gen_advance_ccount(dc); + tcg_gen_mov_i32(cpu_SR[sr], v); + tcg_gen_andi_i32(cpu_SR[INTSET], cpu_SR[INTSET], ~int_bit); + gen_helper_check_interrupts(cpu_env); + } +} + +static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + static void (* const wsr_handler[256])(DisasContext *dc, + uint32_t sr, TCGv_i32 v) = { + [LBEG] = gen_wsr_lbeg, + [LEND] = gen_wsr_lend, + [SAR] = gen_wsr_sar, + [BR] = gen_wsr_br, + [LITBASE] = gen_wsr_litbase, + [WINDOW_BASE] = gen_wsr_windowbase, + [WINDOW_START] = gen_wsr_windowstart, + [PTEVADDR] = gen_wsr_ptevaddr, + [RASID] = gen_wsr_rasid, + [ITLBCFG] = gen_wsr_tlbcfg, + [DTLBCFG] = gen_wsr_tlbcfg, + [INTSET] = gen_wsr_intset, + [INTCLEAR] = gen_wsr_intclear, + [INTENABLE] = gen_wsr_intenable, + [PS] = gen_wsr_ps, + [PRID] = gen_wsr_prid, + [CCOMPARE] = gen_wsr_ccompare, + [CCOMPARE + 1] = gen_wsr_ccompare, + [CCOMPARE + 2] = gen_wsr_ccompare, + }; + + if (sregnames[sr]) { + if (wsr_handler[sr]) { + wsr_handler[sr](dc, sr, s); + } else { + tcg_gen_mov_i32(cpu_SR[sr], s); + } + } else { + qemu_log("WSR %d not implemented, ", sr); + } +} + +static void gen_load_store_alignment(DisasContext *dc, int shift, + TCGv_i32 addr, bool no_hw_alignment) +{ + if (!option_enabled(dc, XTENSA_OPTION_UNALIGNED_EXCEPTION)) { + tcg_gen_andi_i32(addr, addr, ~0 << shift); + } else if (option_enabled(dc, XTENSA_OPTION_HW_ALIGNMENT) && + no_hw_alignment) { + int label = gen_new_label(); + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_andi_i32(tmp, addr, ~(~0 << shift)); + tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label); + gen_exception_cause_vaddr(dc, LOAD_STORE_ALIGNMENT_CAUSE, addr); + gen_set_label(label); + tcg_temp_free(tmp); + } +} + +static void gen_waiti(DisasContext *dc, uint32_t imm4) +{ + TCGv_i32 pc = tcg_const_i32(dc->next_pc); + TCGv_i32 intlevel = tcg_const_i32(imm4); + gen_advance_ccount(dc); + gen_helper_waiti(pc, intlevel); + tcg_temp_free(pc); + tcg_temp_free(intlevel); +} + +static void gen_window_check1(DisasContext *dc, unsigned r1) +{ + if (dc->tb->flags & XTENSA_TBFLAG_EXCM) { + return; + } + if (option_enabled(dc, XTENSA_OPTION_WINDOWED_REGISTER) && + r1 / 4 > dc->used_window) { + TCGv_i32 pc = tcg_const_i32(dc->pc); + TCGv_i32 w = tcg_const_i32(r1 / 4); + + dc->used_window = r1 / 4; + gen_advance_ccount(dc); + gen_helper_window_check(pc, w); + + tcg_temp_free(w); + tcg_temp_free(pc); + } +} + +static void gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2) +{ + gen_window_check1(dc, r1 > r2 ? r1 : r2); +} + +static void gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2, + unsigned r3) +{ + gen_window_check2(dc, r1, r2 > r3 ? r2 : r3); +} + +static void disas_xtensa_insn(DisasContext *dc) +{ +#define HAS_OPTION_BITS(opt) do { \ + if (!option_bits_enabled(dc, opt)) { \ + qemu_log("Option is not enabled %s:%d\n", \ + __FILE__, __LINE__); \ + goto invalid_opcode; \ + } \ + } while (0) + +#define HAS_OPTION(opt) HAS_OPTION_BITS(XTENSA_OPTION_BIT(opt)) + +#define TBD() qemu_log("TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__) +#define RESERVED() do { \ + qemu_log("RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \ + dc->pc, b0, b1, b2, __FILE__, __LINE__); \ + goto invalid_opcode; \ + } while (0) + + +#ifdef TARGET_WORDS_BIGENDIAN +#define OP0 (((b0) & 0xf0) >> 4) +#define OP1 (((b2) & 0xf0) >> 4) +#define OP2 ((b2) & 0xf) +#define RRR_R ((b1) & 0xf) +#define RRR_S (((b1) & 0xf0) >> 4) +#define RRR_T ((b0) & 0xf) +#else +#define OP0 (((b0) & 0xf)) +#define OP1 (((b2) & 0xf)) +#define OP2 (((b2) & 0xf0) >> 4) +#define RRR_R (((b1) & 0xf0) >> 4) +#define RRR_S (((b1) & 0xf)) +#define RRR_T (((b0) & 0xf0) >> 4) +#endif + +#define RRRN_R RRR_R +#define RRRN_S RRR_S +#define RRRN_T RRR_T + +#define RRI8_R RRR_R +#define RRI8_S RRR_S +#define RRI8_T RRR_T +#define RRI8_IMM8 (b2) +#define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8) + +#ifdef TARGET_WORDS_BIGENDIAN +#define RI16_IMM16 (((b1) << 8) | (b2)) +#else +#define RI16_IMM16 (((b2) << 8) | (b1)) +#endif + +#ifdef TARGET_WORDS_BIGENDIAN +#define CALL_N (((b0) & 0xc) >> 2) +#define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2)) +#else +#define CALL_N (((b0) & 0x30) >> 4) +#define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10)) +#endif +#define CALL_OFFSET_SE \ + (((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET) + +#define CALLX_N CALL_N +#ifdef TARGET_WORDS_BIGENDIAN +#define CALLX_M ((b0) & 0x3) +#else +#define CALLX_M (((b0) & 0xc0) >> 6) +#endif +#define CALLX_S RRR_S + +#define BRI12_M CALLX_M +#define BRI12_S RRR_S +#ifdef TARGET_WORDS_BIGENDIAN +#define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2)) +#else +#define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4)) +#endif +#define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12) + +#define BRI8_M BRI12_M +#define BRI8_R RRI8_R +#define BRI8_S RRI8_S +#define BRI8_IMM8 RRI8_IMM8 +#define BRI8_IMM8_SE RRI8_IMM8_SE + +#define RSR_SR (b1) + + uint8_t b0 = ldub_code(dc->pc); + uint8_t b1 = ldub_code(dc->pc + 1); + uint8_t b2 = ldub_code(dc->pc + 2); + + static const uint32_t B4CONST[] = { + 0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 + }; + + static const uint32_t B4CONSTU[] = { + 32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 + }; + + if (OP0 >= 8) { + dc->next_pc = dc->pc + 2; + HAS_OPTION(XTENSA_OPTION_CODE_DENSITY); + } else { + dc->next_pc = dc->pc + 3; + } + + switch (OP0) { + case 0: /*QRST*/ + switch (OP1) { + case 0: /*RST0*/ + switch (OP2) { + case 0: /*ST0*/ + if ((RRR_R & 0xc) == 0x8) { + HAS_OPTION(XTENSA_OPTION_BOOLEAN); + } + + switch (RRR_R) { + case 0: /*SNM0*/ + switch (CALLX_M) { + case 0: /*ILL*/ + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + break; + + case 1: /*reserved*/ + RESERVED(); + break; + + case 2: /*JR*/ + switch (CALLX_N) { + case 0: /*RET*/ + case 2: /*JX*/ + gen_window_check1(dc, CALLX_S); + gen_jump(dc, cpu_R[CALLX_S]); + break; + + case 1: /*RETWw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + { + TCGv_i32 tmp = tcg_const_i32(dc->pc); + gen_advance_ccount(dc); + gen_helper_retw(tmp, tmp); + gen_jump(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 3: /*reserved*/ + RESERVED(); + break; + } + break; + + case 3: /*CALLX*/ + gen_window_check2(dc, CALLX_S, CALLX_N << 2); + switch (CALLX_N) { + case 0: /*CALLX0*/ + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); + tcg_gen_movi_i32(cpu_R[0], dc->next_pc); + gen_jump(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 1: /*CALLX4w*/ + case 2: /*CALLX8w*/ + case 3: /*CALLX12w*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); + gen_callw(dc, CALLX_N, tmp); + tcg_temp_free(tmp); + } + break; + } + break; + } + break; + + case 1: /*MOVSPw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + gen_window_check2(dc, RRR_T, RRR_S); + { + TCGv_i32 pc = tcg_const_i32(dc->pc); + gen_advance_ccount(dc); + gen_helper_movsp(pc); + tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]); + tcg_temp_free(pc); + } + break; + + case 2: /*SYNC*/ + switch (RRR_T) { + case 0: /*ISYNC*/ + break; + + case 1: /*RSYNC*/ + break; + + case 2: /*ESYNC*/ + break; + + case 3: /*DSYNC*/ + break; + + case 8: /*EXCW*/ + HAS_OPTION(XTENSA_OPTION_EXCEPTION); + break; + + case 12: /*MEMW*/ + break; + + case 13: /*EXTW*/ + break; + + case 15: /*NOP*/ + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 3: /*RFEIx*/ + switch (RRR_T) { + case 0: /*RFETx*/ + HAS_OPTION(XTENSA_OPTION_EXCEPTION); + switch (RRR_S) { + case 0: /*RFEx*/ + gen_check_privilege(dc); + tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); + gen_helper_check_interrupts(cpu_env); + gen_jump(dc, cpu_SR[EPC1]); + break; + + case 1: /*RFUEx*/ + RESERVED(); + break; + + case 2: /*RFDEx*/ + gen_check_privilege(dc); + gen_jump(dc, cpu_SR[ + dc->config->ndepc ? DEPC : EPC1]); + break; + + case 4: /*RFWOw*/ + case 5: /*RFWUw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + gen_check_privilege(dc); + { + TCGv_i32 tmp = tcg_const_i32(1); + + tcg_gen_andi_i32( + cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); + tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]); + + if (RRR_S == 4) { + tcg_gen_andc_i32(cpu_SR[WINDOW_START], + cpu_SR[WINDOW_START], tmp); + } else { + tcg_gen_or_i32(cpu_SR[WINDOW_START], + cpu_SR[WINDOW_START], tmp); + } + + gen_helper_restore_owb(); + gen_helper_check_interrupts(cpu_env); + gen_jump(dc, cpu_SR[EPC1]); + + tcg_temp_free(tmp); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 1: /*RFIx*/ + HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT); + if (RRR_S >= 2 && RRR_S <= dc->config->nlevel) { + gen_check_privilege(dc); + tcg_gen_mov_i32(cpu_SR[PS], + cpu_SR[EPS2 + RRR_S - 2]); + gen_helper_check_interrupts(cpu_env); + gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]); + } else { + qemu_log("RFI %d is illegal\n", RRR_S); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + } + break; + + case 2: /*RFME*/ + TBD(); + break; + + default: /*reserved*/ + RESERVED(); + break; + + } + break; + + case 4: /*BREAKx*/ + HAS_OPTION(XTENSA_OPTION_EXCEPTION); + TBD(); + break; + + case 5: /*SYSCALLx*/ + HAS_OPTION(XTENSA_OPTION_EXCEPTION); + switch (RRR_S) { + case 0: /*SYSCALLx*/ + gen_exception_cause(dc, SYSCALL_CAUSE); + break; + + case 1: /*SIMCALL*/ + if (semihosting_enabled) { + gen_check_privilege(dc); + gen_helper_simcall(cpu_env); + } else { + qemu_log("SIMCALL but semihosting is disabled\n"); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + } + break; + + default: + RESERVED(); + break; + } + break; + + case 6: /*RSILx*/ + HAS_OPTION(XTENSA_OPTION_INTERRUPT); + gen_check_privilege(dc); + gen_window_check1(dc, RRR_T); + tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]); + tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_INTLEVEL); + tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S); + gen_helper_check_interrupts(cpu_env); + gen_jumpi_check_loop_end(dc, 0); + break; + + case 7: /*WAITIx*/ + HAS_OPTION(XTENSA_OPTION_INTERRUPT); + gen_check_privilege(dc); + gen_waiti(dc, RRR_S); + break; + + case 8: /*ANY4p*/ + case 9: /*ALL4p*/ + case 10: /*ANY8p*/ + case 11: /*ALL8p*/ + HAS_OPTION(XTENSA_OPTION_BOOLEAN); + { + const unsigned shift = (RRR_R & 2) ? 8 : 4; + TCGv_i32 mask = tcg_const_i32( + ((1 << shift) - 1) << RRR_S); + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_and_i32(tmp, cpu_SR[BR], mask); + if (RRR_R & 1) { /*ALL*/ + tcg_gen_addi_i32(tmp, tmp, 1 << RRR_S); + } else { /*ANY*/ + tcg_gen_add_i32(tmp, tmp, mask); + } + tcg_gen_shri_i32(tmp, tmp, RRR_S + shift); + tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], + tmp, RRR_T, 1); + tcg_temp_free(mask); + tcg_temp_free(tmp); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + + } + break; + + case 1: /*AND*/ + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 2: /*OR*/ + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 3: /*XOR*/ + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 4: /*ST1*/ + switch (RRR_R) { + case 0: /*SSR*/ + gen_window_check1(dc, RRR_S); + gen_right_shift_sar(dc, cpu_R[RRR_S]); + break; + + case 1: /*SSL*/ + gen_window_check1(dc, RRR_S); + gen_left_shift_sar(dc, cpu_R[RRR_S]); + break; + + case 2: /*SSA8L*/ + gen_window_check1(dc, RRR_S); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); + gen_right_shift_sar(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 3: /*SSA8B*/ + gen_window_check1(dc, RRR_S); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); + gen_left_shift_sar(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 4: /*SSAI*/ + { + TCGv_i32 tmp = tcg_const_i32( + RRR_S | ((RRR_T & 1) << 4)); + gen_right_shift_sar(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 6: /*RER*/ + TBD(); + break; + + case 7: /*WER*/ + TBD(); + break; + + case 8: /*ROTWw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + gen_check_privilege(dc); + { + TCGv_i32 tmp = tcg_const_i32( + RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0)); + gen_helper_rotw(tmp); + tcg_temp_free(tmp); + reset_used_window(dc); + } + break; + + case 14: /*NSAu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP); + gen_window_check2(dc, RRR_S, RRR_T); + gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]); + break; + + case 15: /*NSAUu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP); + gen_window_check2(dc, RRR_S, RRR_T); + gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]); + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 5: /*TLB*/ + HAS_OPTION_BITS( + XTENSA_OPTION_BIT(XTENSA_OPTION_MMU) | + XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) | + XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION)); + gen_check_privilege(dc); + gen_window_check2(dc, RRR_S, RRR_T); + { + TCGv_i32 dtlb = tcg_const_i32((RRR_R & 8) != 0); + + switch (RRR_R & 7) { + case 3: /*RITLB0*/ /*RDTLB0*/ + gen_helper_rtlb0(cpu_R[RRR_T], cpu_R[RRR_S], dtlb); + break; + + case 4: /*IITLB*/ /*IDTLB*/ + gen_helper_itlb(cpu_R[RRR_S], dtlb); + /* This could change memory mapping, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); + break; + + case 5: /*PITLB*/ /*PDTLB*/ + tcg_gen_movi_i32(cpu_pc, dc->pc); + gen_helper_ptlb(cpu_R[RRR_T], cpu_R[RRR_S], dtlb); + break; + + case 6: /*WITLB*/ /*WDTLB*/ + gen_helper_wtlb(cpu_R[RRR_T], cpu_R[RRR_S], dtlb); + /* This could change memory mapping, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); + break; + + case 7: /*RITLB1*/ /*RDTLB1*/ + gen_helper_rtlb1(cpu_R[RRR_T], cpu_R[RRR_S], dtlb); + break; + + default: + tcg_temp_free(dtlb); + RESERVED(); + break; + } + tcg_temp_free(dtlb); + } + break; + + case 6: /*RT0*/ + gen_window_check2(dc, RRR_R, RRR_T); + switch (RRR_S) { + case 0: /*NEG*/ + tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]); + break; + + case 1: /*ABS*/ + { + int label = gen_new_label(); + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]); + tcg_gen_brcondi_i32( + TCG_COND_GE, cpu_R[RRR_R], 0, label); + tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]); + gen_set_label(label); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 7: /*reserved*/ + RESERVED(); + break; + + case 8: /*ADD*/ + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 9: /*ADD**/ + case 10: + case 11: + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8); + tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); + tcg_temp_free(tmp); + } + break; + + case 12: /*SUB*/ + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 13: /*SUB**/ + case 14: + case 15: + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12); + tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); + tcg_temp_free(tmp); + } + break; + } + break; + + case 1: /*RST1*/ + switch (OP2) { + case 0: /*SLLI*/ + case 1: + gen_window_check2(dc, RRR_R, RRR_S); + tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S], + 32 - (RRR_T | ((OP2 & 1) << 4))); + break; + + case 2: /*SRAI*/ + case 3: + gen_window_check2(dc, RRR_R, RRR_T); + tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T], + RRR_S | ((OP2 & 1) << 4)); + break; + + case 4: /*SRLI*/ + gen_window_check2(dc, RRR_R, RRR_T); + tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S); + break; + + case 6: /*XSR*/ + { + TCGv_i32 tmp = tcg_temp_new_i32(); + if (RSR_SR >= 64) { + gen_check_privilege(dc); + } + gen_window_check1(dc, RRR_T); + tcg_gen_mov_i32(tmp, cpu_R[RRR_T]); + gen_rsr(dc, cpu_R[RRR_T], RSR_SR); + gen_wsr(dc, RSR_SR, tmp); + tcg_temp_free(tmp); + if (!sregnames[RSR_SR]) { + TBD(); + } + } + break; + + /* + * Note: 64 bit ops are used here solely because SAR values + * have range 0..63 + */ +#define gen_shift_reg(cmd, reg) do { \ + TCGv_i64 tmp = tcg_temp_new_i64(); \ + tcg_gen_extu_i32_i64(tmp, reg); \ + tcg_gen_##cmd##_i64(v, v, tmp); \ + tcg_gen_trunc_i64_i32(cpu_R[RRR_R], v); \ + tcg_temp_free_i64(v); \ + tcg_temp_free_i64(tmp); \ + } while (0) + +#define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR]) + + case 8: /*SRC*/ + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + { + TCGv_i64 v = tcg_temp_new_i64(); + tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]); + gen_shift(shr); + } + break; + + case 9: /*SRL*/ + gen_window_check2(dc, RRR_R, RRR_T); + if (dc->sar_5bit) { + tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); + } else { + TCGv_i64 v = tcg_temp_new_i64(); + tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]); + gen_shift(shr); + } + break; + + case 10: /*SLL*/ + gen_window_check2(dc, RRR_R, RRR_S); + if (dc->sar_m32_5bit) { + tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32); + } else { + TCGv_i64 v = tcg_temp_new_i64(); + TCGv_i32 s = tcg_const_i32(32); + tcg_gen_sub_i32(s, s, cpu_SR[SAR]); + tcg_gen_andi_i32(s, s, 0x3f); + tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]); + gen_shift_reg(shl, s); + tcg_temp_free(s); + } + break; + + case 11: /*SRA*/ + gen_window_check2(dc, RRR_R, RRR_T); + if (dc->sar_5bit) { + tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); + } else { + TCGv_i64 v = tcg_temp_new_i64(); + tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]); + gen_shift(sar); + } + break; +#undef gen_shift +#undef gen_shift_reg + + case 12: /*MUL16U*/ + HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + { + TCGv_i32 v1 = tcg_temp_new_i32(); + TCGv_i32 v2 = tcg_temp_new_i32(); + tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]); + tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]); + tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); + tcg_temp_free(v2); + tcg_temp_free(v1); + } + break; + + case 13: /*MUL16S*/ + HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + { + TCGv_i32 v1 = tcg_temp_new_i32(); + TCGv_i32 v2 = tcg_temp_new_i32(); + tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]); + tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]); + tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); + tcg_temp_free(v2); + tcg_temp_free(v1); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 2: /*RST2*/ + if (OP2 >= 8) { + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + } + + if (OP2 >= 12) { + HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV); + int label = gen_new_label(); + tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label); + gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE); + gen_set_label(label); + } + + switch (OP2) { +#define BOOLEAN_LOGIC(fn, r, s, t) \ + do { \ + HAS_OPTION(XTENSA_OPTION_BOOLEAN); \ + TCGv_i32 tmp1 = tcg_temp_new_i32(); \ + TCGv_i32 tmp2 = tcg_temp_new_i32(); \ + \ + tcg_gen_shri_i32(tmp1, cpu_SR[BR], s); \ + tcg_gen_shri_i32(tmp2, cpu_SR[BR], t); \ + tcg_gen_##fn##_i32(tmp1, tmp1, tmp2); \ + tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], tmp1, r, 1); \ + tcg_temp_free(tmp1); \ + tcg_temp_free(tmp2); \ + } while (0) + + case 0: /*ANDBp*/ + BOOLEAN_LOGIC(and, RRR_R, RRR_S, RRR_T); + break; + + case 1: /*ANDBCp*/ + BOOLEAN_LOGIC(andc, RRR_R, RRR_S, RRR_T); + break; + + case 2: /*ORBp*/ + BOOLEAN_LOGIC(or, RRR_R, RRR_S, RRR_T); + break; + + case 3: /*ORBCp*/ + BOOLEAN_LOGIC(orc, RRR_R, RRR_S, RRR_T); + break; + + case 4: /*XORBp*/ + BOOLEAN_LOGIC(xor, RRR_R, RRR_S, RRR_T); + break; + +#undef BOOLEAN_LOGIC + + case 8: /*MULLi*/ + HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL); + tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 10: /*MULUHi*/ + case 11: /*MULSHi*/ + HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL); + { + TCGv_i64 r = tcg_temp_new_i64(); + TCGv_i64 s = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_new_i64(); + + if (OP2 == 10) { + tcg_gen_extu_i32_i64(s, cpu_R[RRR_S]); + tcg_gen_extu_i32_i64(t, cpu_R[RRR_T]); + } else { + tcg_gen_ext_i32_i64(s, cpu_R[RRR_S]); + tcg_gen_ext_i32_i64(t, cpu_R[RRR_T]); + } + tcg_gen_mul_i64(r, s, t); + tcg_gen_shri_i64(r, r, 32); + tcg_gen_trunc_i64_i32(cpu_R[RRR_R], r); + + tcg_temp_free_i64(r); + tcg_temp_free_i64(s); + tcg_temp_free_i64(t); + } + break; + + case 12: /*QUOUi*/ + tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 13: /*QUOSi*/ + case 15: /*REMSi*/ + { + int label1 = gen_new_label(); + int label2 = gen_new_label(); + + tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_S], 0x80000000, + label1); + tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0xffffffff, + label1); + tcg_gen_movi_i32(cpu_R[RRR_R], + OP2 == 13 ? 0x80000000 : 0); + tcg_gen_br(label2); + gen_set_label(label1); + if (OP2 == 13) { + tcg_gen_div_i32(cpu_R[RRR_R], + cpu_R[RRR_S], cpu_R[RRR_T]); + } else { + tcg_gen_rem_i32(cpu_R[RRR_R], + cpu_R[RRR_S], cpu_R[RRR_T]); + } + gen_set_label(label2); + } + break; + + case 14: /*REMUi*/ + tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 3: /*RST3*/ + switch (OP2) { + case 0: /*RSR*/ + if (RSR_SR >= 64) { + gen_check_privilege(dc); + } + gen_window_check1(dc, RRR_T); + gen_rsr(dc, cpu_R[RRR_T], RSR_SR); + if (!sregnames[RSR_SR]) { + TBD(); + } + break; + + case 1: /*WSR*/ + if (RSR_SR >= 64) { + gen_check_privilege(dc); + } + gen_window_check1(dc, RRR_T); + gen_wsr(dc, RSR_SR, cpu_R[RRR_T]); + if (!sregnames[RSR_SR]) { + TBD(); + } + break; + + case 2: /*SEXTu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP); + gen_window_check2(dc, RRR_R, RRR_S); + { + int shift = 24 - RRR_T; + + if (shift == 24) { + tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); + } else if (shift == 16) { + tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); + } else { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift); + tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift); + tcg_temp_free(tmp); + } + } + break; + + case 3: /*CLAMPSu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP); + gen_window_check2(dc, RRR_R, RRR_S); + { + TCGv_i32 tmp1 = tcg_temp_new_i32(); + TCGv_i32 tmp2 = tcg_temp_new_i32(); + int label = gen_new_label(); + + tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T); + tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]); + tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7)); + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); + tcg_gen_brcondi_i32(TCG_COND_EQ, tmp2, 0, label); + + tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31); + tcg_gen_xori_i32(cpu_R[RRR_R], tmp1, + 0xffffffff >> (25 - RRR_T)); + + gen_set_label(label); + + tcg_temp_free(tmp1); + tcg_temp_free(tmp2); + } + break; + + case 4: /*MINu*/ + case 5: /*MAXu*/ + case 6: /*MINUu*/ + case 7: /*MAXUu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP); + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + { + static const TCGCond cond[] = { + TCG_COND_LE, + TCG_COND_GE, + TCG_COND_LEU, + TCG_COND_GEU + }; + int label = gen_new_label(); + + if (RRR_R != RRR_T) { + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); + tcg_gen_brcond_i32(cond[OP2 - 4], + cpu_R[RRR_S], cpu_R[RRR_T], label); + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]); + } else { + tcg_gen_brcond_i32(cond[OP2 - 4], + cpu_R[RRR_T], cpu_R[RRR_S], label); + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); + } + gen_set_label(label); + } + break; + + case 8: /*MOVEQZ*/ + case 9: /*MOVNEZ*/ + case 10: /*MOVLTZ*/ + case 11: /*MOVGEZ*/ + gen_window_check3(dc, RRR_R, RRR_S, RRR_T); + { + static const TCGCond cond[] = { + TCG_COND_NE, + TCG_COND_EQ, + TCG_COND_GE, + TCG_COND_LT + }; + int label = gen_new_label(); + tcg_gen_brcondi_i32(cond[OP2 - 8], cpu_R[RRR_T], 0, label); + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); + gen_set_label(label); + } + break; + + case 12: /*MOVFp*/ + case 13: /*MOVTp*/ + HAS_OPTION(XTENSA_OPTION_BOOLEAN); + gen_window_check2(dc, RRR_R, RRR_S); + { + int label = gen_new_label(); + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T); + tcg_gen_brcondi_i32( + OP2 & 1 ? TCG_COND_EQ : TCG_COND_NE, + tmp, 0, label); + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); + gen_set_label(label); + tcg_temp_free(tmp); + } + break; + + case 14: /*RUR*/ + gen_window_check1(dc, RRR_R); + { + int st = (RRR_S << 4) + RRR_T; + if (uregnames[st]) { + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]); + } else { + qemu_log("RUR %d not implemented, ", st); + TBD(); + } + } + break; + + case 15: /*WUR*/ + gen_window_check1(dc, RRR_T); + { + if (uregnames[RSR_SR]) { + tcg_gen_mov_i32(cpu_UR[RSR_SR], cpu_R[RRR_T]); + } else { + qemu_log("WUR %d not implemented, ", RSR_SR); + TBD(); + } + } + break; + + } + break; + + case 4: /*EXTUI*/ + case 5: + gen_window_check2(dc, RRR_R, RRR_T); + { + int shiftimm = RRR_S | (OP1 << 4); + int maskimm = (1 << (OP2 + 1)) - 1; + + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm); + tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm); + tcg_temp_free(tmp); + } + break; + + case 6: /*CUST0*/ + RESERVED(); + break; + + case 7: /*CUST1*/ + RESERVED(); + break; + + case 8: /*LSCXp*/ + HAS_OPTION(XTENSA_OPTION_COPROCESSOR); + TBD(); + break; + + case 9: /*LSC4*/ + gen_window_check2(dc, RRR_S, RRR_T); + switch (OP2) { + case 0: /*L32E*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + gen_check_privilege(dc); + { + TCGv_i32 addr = tcg_temp_new_i32(); + tcg_gen_addi_i32(addr, cpu_R[RRR_S], + (0xffffffc0 | (RRR_R << 2))); + tcg_gen_qemu_ld32u(cpu_R[RRR_T], addr, dc->ring); + tcg_temp_free(addr); + } + break; + + case 4: /*S32E*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + gen_check_privilege(dc); + { + TCGv_i32 addr = tcg_temp_new_i32(); + tcg_gen_addi_i32(addr, cpu_R[RRR_S], + (0xffffffc0 | (RRR_R << 2))); + tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring); + tcg_temp_free(addr); + } + break; + + default: + RESERVED(); + break; + } + break; + + case 10: /*FP0*/ + HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); + TBD(); + break; + + case 11: /*FP1*/ + HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); + TBD(); + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 1: /*L32R*/ + gen_window_check1(dc, RRR_T); + { + TCGv_i32 tmp = tcg_const_i32( + ((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ? + 0 : ((dc->pc + 3) & ~3)) + + (0xfffc0000 | (RI16_IMM16 << 2))); + + if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { + tcg_gen_add_i32(tmp, tmp, dc->litbase); + } + tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring); + tcg_temp_free(tmp); + } + break; + + case 2: /*LSAI*/ +#define gen_load_store(type, shift) do { \ + TCGv_i32 addr = tcg_temp_new_i32(); \ + gen_window_check2(dc, RRI8_S, RRI8_T); \ + tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \ + if (shift) { \ + gen_load_store_alignment(dc, shift, addr, false); \ + } \ + tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ + tcg_temp_free(addr); \ + } while (0) + + switch (RRI8_R) { + case 0: /*L8UI*/ + gen_load_store(ld8u, 0); + break; + + case 1: /*L16UI*/ + gen_load_store(ld16u, 1); + break; + + case 2: /*L32I*/ + gen_load_store(ld32u, 2); + break; + + case 4: /*S8I*/ + gen_load_store(st8, 0); + break; + + case 5: /*S16I*/ + gen_load_store(st16, 1); + break; + + case 6: /*S32I*/ + gen_load_store(st32, 2); + break; + + case 7: /*CACHEc*/ + if (RRI8_T < 8) { + HAS_OPTION(XTENSA_OPTION_DCACHE); + } + + switch (RRI8_T) { + case 0: /*DPFRc*/ + break; + + case 1: /*DPFWc*/ + break; + + case 2: /*DPFROc*/ + break; + + case 3: /*DPFWOc*/ + break; + + case 4: /*DHWBc*/ + break; + + case 5: /*DHWBIc*/ + break; + + case 6: /*DHIc*/ + break; + + case 7: /*DIIc*/ + break; + + case 8: /*DCEc*/ + switch (OP1) { + case 0: /*DPFLl*/ + HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); + break; + + case 2: /*DHUl*/ + HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); + break; + + case 3: /*DIUl*/ + HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); + break; + + case 4: /*DIWBc*/ + HAS_OPTION(XTENSA_OPTION_DCACHE); + break; + + case 5: /*DIWBIc*/ + HAS_OPTION(XTENSA_OPTION_DCACHE); + break; + + default: /*reserved*/ + RESERVED(); + break; + + } + break; + + case 12: /*IPFc*/ + HAS_OPTION(XTENSA_OPTION_ICACHE); + break; + + case 13: /*ICEc*/ + switch (OP1) { + case 0: /*IPFLl*/ + HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); + break; + + case 2: /*IHUl*/ + HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); + break; + + case 3: /*IIUl*/ + HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 14: /*IHIc*/ + HAS_OPTION(XTENSA_OPTION_ICACHE); + break; + + case 15: /*IIIc*/ + HAS_OPTION(XTENSA_OPTION_ICACHE); + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 9: /*L16SI*/ + gen_load_store(ld16s, 1); + break; +#undef gen_load_store + + case 10: /*MOVI*/ + gen_window_check1(dc, RRI8_T); + tcg_gen_movi_i32(cpu_R[RRI8_T], + RRI8_IMM8 | (RRI8_S << 8) | + ((RRI8_S & 0x8) ? 0xfffff000 : 0)); + break; + +#define gen_load_store_no_hw_align(type) do { \ + TCGv_i32 addr = tcg_temp_local_new_i32(); \ + gen_window_check2(dc, RRI8_S, RRI8_T); \ + tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); \ + gen_load_store_alignment(dc, 2, addr, true); \ + tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ + tcg_temp_free(addr); \ + } while (0) + + case 11: /*L32AIy*/ + HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); + gen_load_store_no_hw_align(ld32u); /*TODO acquire?*/ + break; + + case 12: /*ADDI*/ + gen_window_check2(dc, RRI8_S, RRI8_T); + tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE); + break; + + case 13: /*ADDMI*/ + gen_window_check2(dc, RRI8_S, RRI8_T); + tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE << 8); + break; + + case 14: /*S32C1Iy*/ + HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); + gen_window_check2(dc, RRI8_S, RRI8_T); + { + int label = gen_new_label(); + TCGv_i32 tmp = tcg_temp_local_new_i32(); + TCGv_i32 addr = tcg_temp_local_new_i32(); + + tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]); + tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); + gen_load_store_alignment(dc, 2, addr, true); + tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring); + tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T], + cpu_SR[SCOMPARE1], label); + + tcg_gen_qemu_st32(tmp, addr, dc->cring); + + gen_set_label(label); + tcg_temp_free(addr); + tcg_temp_free(tmp); + } + break; + + case 15: /*S32RIy*/ + HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); + gen_load_store_no_hw_align(st32); /*TODO release?*/ + break; +#undef gen_load_store_no_hw_align + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 3: /*LSCIp*/ + HAS_OPTION(XTENSA_OPTION_COPROCESSOR); + TBD(); + break; + + case 4: /*MAC16d*/ + HAS_OPTION(XTENSA_OPTION_MAC16); + TBD(); + break; + + case 5: /*CALLN*/ + switch (CALL_N) { + case 0: /*CALL0*/ + tcg_gen_movi_i32(cpu_R[0], dc->next_pc); + gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); + break; + + case 1: /*CALL4w*/ + case 2: /*CALL8w*/ + case 3: /*CALL12w*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + gen_window_check1(dc, CALL_N << 2); + gen_callwi(dc, CALL_N, + (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); + break; + } + break; + + case 6: /*SI*/ + switch (CALL_N) { + case 0: /*J*/ + gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0); + break; + + case 1: /*BZ*/ + gen_window_check1(dc, BRI12_S); + { + static const TCGCond cond[] = { + TCG_COND_EQ, /*BEQZ*/ + TCG_COND_NE, /*BNEZ*/ + TCG_COND_LT, /*BLTZ*/ + TCG_COND_GE, /*BGEZ*/ + }; + + gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0, + 4 + BRI12_IMM12_SE); + } + break; + + case 2: /*BI0*/ + gen_window_check1(dc, BRI8_S); + { + static const TCGCond cond[] = { + TCG_COND_EQ, /*BEQI*/ + TCG_COND_NE, /*BNEI*/ + TCG_COND_LT, /*BLTI*/ + TCG_COND_GE, /*BGEI*/ + }; + + gen_brcondi(dc, cond[BRI8_M & 3], + cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE); + } + break; + + case 3: /*BI1*/ + switch (BRI8_M) { + case 0: /*ENTRYw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + { + TCGv_i32 pc = tcg_const_i32(dc->pc); + TCGv_i32 s = tcg_const_i32(BRI12_S); + TCGv_i32 imm = tcg_const_i32(BRI12_IMM12); + gen_advance_ccount(dc); + gen_helper_entry(pc, s, imm); + tcg_temp_free(imm); + tcg_temp_free(s); + tcg_temp_free(pc); + reset_used_window(dc); + } + break; + + case 1: /*B1*/ + switch (BRI8_R) { + case 0: /*BFp*/ + case 1: /*BTp*/ + HAS_OPTION(XTENSA_OPTION_BOOLEAN); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRI8_S); + gen_brcondi(dc, + BRI8_R == 1 ? TCG_COND_NE : TCG_COND_EQ, + tmp, 0, 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + } + break; + + case 8: /*LOOP*/ + case 9: /*LOOPNEZ*/ + case 10: /*LOOPGTZ*/ + HAS_OPTION(XTENSA_OPTION_LOOP); + gen_window_check1(dc, RRI8_S); + { + uint32_t lend = dc->pc + RRI8_IMM8 + 4; + TCGv_i32 tmp = tcg_const_i32(lend); + + tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1); + tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc); + gen_wsr_lend(dc, LEND, tmp); + tcg_temp_free(tmp); + + if (BRI8_R > 8) { + int label = gen_new_label(); + tcg_gen_brcondi_i32( + BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT, + cpu_R[RRI8_S], 0, label); + gen_jumpi(dc, lend, 1); + gen_set_label(label); + } + + gen_jumpi(dc, dc->next_pc, 0); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + + } + break; + + case 2: /*BLTUI*/ + case 3: /*BGEUI*/ + gen_window_check1(dc, BRI8_S); + gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU, + cpu_R[BRI8_S], B4CONSTU[BRI8_R], 4 + BRI8_IMM8_SE); + break; + } + break; + + } + break; + + case 7: /*B*/ + { + TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ; + + switch (RRI8_R & 7) { + case 0: /*BNONE*/ /*BANY*/ + gen_window_check2(dc, RRI8_S, RRI8_T); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); + gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + } + break; + + case 1: /*BEQ*/ /*BNE*/ + case 2: /*BLT*/ /*BGE*/ + case 3: /*BLTU*/ /*BGEU*/ + gen_window_check2(dc, RRI8_S, RRI8_T); + { + static const TCGCond cond[] = { + [1] = TCG_COND_EQ, + [2] = TCG_COND_LT, + [3] = TCG_COND_LTU, + [9] = TCG_COND_NE, + [10] = TCG_COND_GE, + [11] = TCG_COND_GEU, + }; + gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T], + 4 + RRI8_IMM8_SE); + } + break; + + case 4: /*BALL*/ /*BNALL*/ + gen_window_check2(dc, RRI8_S, RRI8_T); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); + gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T], + 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + } + break; + + case 5: /*BBC*/ /*BBS*/ + gen_window_check2(dc, RRI8_S, RRI8_T); + { + TCGv_i32 bit = tcg_const_i32(1); + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f); + tcg_gen_shl_i32(bit, bit, tmp); + tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit); + gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + tcg_temp_free(bit); + } + break; + + case 6: /*BBCI*/ /*BBSI*/ + case 7: + gen_window_check1(dc, RRI8_S); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_andi_i32(tmp, cpu_R[RRI8_S], + 1 << (((RRI8_R & 1) << 4) | RRI8_T)); + gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + } + break; + + } + } + break; + +#define gen_narrow_load_store(type) do { \ + TCGv_i32 addr = tcg_temp_new_i32(); \ + gen_window_check2(dc, RRRN_S, RRRN_T); \ + tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \ + gen_load_store_alignment(dc, 2, addr, false); \ + tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \ + tcg_temp_free(addr); \ + } while (0) + + case 8: /*L32I.Nn*/ + gen_narrow_load_store(ld32u); + break; + + case 9: /*S32I.Nn*/ + gen_narrow_load_store(st32); + break; +#undef gen_narrow_load_store + + case 10: /*ADD.Nn*/ + gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T); + tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]); + break; + + case 11: /*ADDI.Nn*/ + gen_window_check2(dc, RRRN_R, RRRN_S); + tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], RRRN_T ? RRRN_T : -1); + break; + + case 12: /*ST2n*/ + gen_window_check1(dc, RRRN_S); + if (RRRN_T < 8) { /*MOVI.Nn*/ + tcg_gen_movi_i32(cpu_R[RRRN_S], + RRRN_R | (RRRN_T << 4) | + ((RRRN_T & 6) == 6 ? 0xffffff80 : 0)); + } else { /*BEQZ.Nn*/ /*BNEZ.Nn*/ + TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ; + + gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0, + 4 + (RRRN_R | ((RRRN_T & 3) << 4))); + } + break; + + case 13: /*ST3n*/ + switch (RRRN_R) { + case 0: /*MOV.Nn*/ + gen_window_check2(dc, RRRN_S, RRRN_T); + tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]); + break; + + case 15: /*S3*/ + switch (RRRN_T) { + case 0: /*RET.Nn*/ + gen_jump(dc, cpu_R[0]); + break; + + case 1: /*RETW.Nn*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + { + TCGv_i32 tmp = tcg_const_i32(dc->pc); + gen_advance_ccount(dc); + gen_helper_retw(tmp, tmp); + gen_jump(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 2: /*BREAK.Nn*/ + TBD(); + break; + + case 3: /*NOP.Nn*/ + break; + + case 6: /*ILL.Nn*/ + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + + gen_check_loop_end(dc, 0); + dc->pc = dc->next_pc; + + return; + +invalid_opcode: + qemu_log("INVALID(pc = %08x)\n", dc->pc); + dc->pc = dc->next_pc; +#undef HAS_OPTION +} + +static void check_breakpoint(CPUState *env, DisasContext *dc) +{ + CPUBreakpoint *bp; + + if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) { + QTAILQ_FOREACH(bp, &env->breakpoints, entry) { + if (bp->pc == dc->pc) { + tcg_gen_movi_i32(cpu_pc, dc->pc); + gen_exception(dc, EXCP_DEBUG); + dc->is_jmp = DISAS_UPDATE; + } + } + } +} + +static void gen_intermediate_code_internal( + CPUState *env, TranslationBlock *tb, int search_pc) +{ + DisasContext dc; + int insn_count = 0; + int j, lj = -1; + uint16_t *gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; + int max_insns = tb->cflags & CF_COUNT_MASK; + uint32_t pc_start = tb->pc; + uint32_t next_page_start = + (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; + + if (max_insns == 0) { + max_insns = CF_COUNT_MASK; + } + + dc.config = env->config; + dc.singlestep_enabled = env->singlestep_enabled; + dc.tb = tb; + dc.pc = pc_start; + dc.ring = tb->flags & XTENSA_TBFLAG_RING_MASK; + dc.cring = (tb->flags & XTENSA_TBFLAG_EXCM) ? 0 : dc.ring; + dc.lbeg = env->sregs[LBEG]; + dc.lend = env->sregs[LEND]; + dc.is_jmp = DISAS_NEXT; + dc.ccount_delta = 0; + + init_litbase(&dc); + init_sar_tracker(&dc); + reset_used_window(&dc); + + gen_icount_start(); + + if (env->singlestep_enabled && env->exception_taken) { + env->exception_taken = 0; + tcg_gen_movi_i32(cpu_pc, dc.pc); + gen_exception(&dc, EXCP_DEBUG); + } + + do { + check_breakpoint(env, &dc); + + if (search_pc) { + j = gen_opc_ptr - gen_opc_buf; + if (lj < j) { + lj++; + while (lj < j) { + gen_opc_instr_start[lj++] = 0; + } + } + gen_opc_pc[lj] = dc.pc; + gen_opc_instr_start[lj] = 1; + gen_opc_icount[lj] = insn_count; + } + + if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) { + tcg_gen_debug_insn_start(dc.pc); + } + + ++dc.ccount_delta; + + if (insn_count + 1 == max_insns && (tb->cflags & CF_LAST_IO)) { + gen_io_start(); + } + + disas_xtensa_insn(&dc); + ++insn_count; + if (env->singlestep_enabled) { + tcg_gen_movi_i32(cpu_pc, dc.pc); + gen_exception(&dc, EXCP_DEBUG); + break; + } + } while (dc.is_jmp == DISAS_NEXT && + insn_count < max_insns && + dc.pc < next_page_start && + gen_opc_ptr < gen_opc_end); + + reset_litbase(&dc); + reset_sar_tracker(&dc); + + if (tb->cflags & CF_LAST_IO) { + gen_io_end(); + } + + if (dc.is_jmp == DISAS_NEXT) { + gen_jumpi(&dc, dc.pc, 0); + } + gen_icount_end(tb, insn_count); + *gen_opc_ptr = INDEX_op_end; + + if (!search_pc) { + tb->size = dc.pc - pc_start; + tb->icount = insn_count; + } +} + +void gen_intermediate_code(CPUState *env, TranslationBlock *tb) +{ + gen_intermediate_code_internal(env, tb, 0); +} + +void gen_intermediate_code_pc(CPUState *env, TranslationBlock *tb) +{ + gen_intermediate_code_internal(env, tb, 1); +} + +void cpu_dump_state(CPUState *env, FILE *f, fprintf_function cpu_fprintf, + int flags) +{ + int i, j; + + cpu_fprintf(f, "PC=%08x\n\n", env->pc); + + for (i = j = 0; i < 256; ++i) { + if (sregnames[i]) { + cpu_fprintf(f, "%s=%08x%c", sregnames[i], env->sregs[i], + (j++ % 4) == 3 ? '\n' : ' '); + } + } + + cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); + + for (i = j = 0; i < 256; ++i) { + if (uregnames[i]) { + cpu_fprintf(f, "%s=%08x%c", uregnames[i], env->uregs[i], + (j++ % 4) == 3 ? '\n' : ' '); + } + } + + cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); + + for (i = 0; i < 16; ++i) { + cpu_fprintf(f, "A%02d=%08x%c", i, env->regs[i], + (i % 4) == 3 ? '\n' : ' '); + } + + cpu_fprintf(f, "\n"); + + for (i = 0; i < env->config->nareg; ++i) { + cpu_fprintf(f, "AR%02d=%08x%c", i, env->phys_regs[i], + (i % 4) == 3 ? '\n' : ' '); + } +} + +void restore_state_to_opc(CPUState *env, TranslationBlock *tb, int pc_pos) +{ + env->pc = gen_opc_pc[pc_pos]; +} |