--- /dev/null
+/*
+ * 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/exec-all.h"
+#include "disas/disas.h"
+#include "tcg-op.h"
+#include "qemu/log.h"
+#include "sysemu/sysemu.h"
+#include "exec/cpu_ldst.h"
+#include "exec/semihost.h"
+
+#include "exec/helper-proto.h"
+#include "exec/helper-gen.h"
+
+#include "trace-tcg.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 window;
+
+ bool debug;
+ bool icount;
+ TCGv_i32 next_icount;
+
+ unsigned cpenable;
+} DisasContext;
+
+static TCGv_ptr cpu_env;
+static TCGv_i32 cpu_pc;
+static TCGv_i32 cpu_R[16];
+static TCGv_i32 cpu_FR[16];
+static TCGv_i32 cpu_SR[256];
+static TCGv_i32 cpu_UR[256];
+
+#include "exec/gen-icount.h"
+
+typedef struct XtensaReg {
+ const char *name;
+ uint64_t opt_bits;
+ enum {
+ SR_R = 1,
+ SR_W = 2,
+ SR_X = 4,
+ SR_RW = 3,
+ SR_RWX = 7,
+ } access;
+} XtensaReg;
+
+#define XTENSA_REG_ACCESS(regname, opt, acc) { \
+ .name = (regname), \
+ .opt_bits = XTENSA_OPTION_BIT(opt), \
+ .access = (acc), \
+ }
+
+#define XTENSA_REG(regname, opt) XTENSA_REG_ACCESS(regname, opt, SR_RWX)
+
+#define XTENSA_REG_BITS_ACCESS(regname, opt, acc) { \
+ .name = (regname), \
+ .opt_bits = (opt), \
+ .access = (acc), \
+ }
+
+#define XTENSA_REG_BITS(regname, opt) \
+ XTENSA_REG_BITS_ACCESS(regname, opt, SR_RWX)
+
+static const XtensaReg sregnames[256] = {
+ [LBEG] = XTENSA_REG("LBEG", XTENSA_OPTION_LOOP),
+ [LEND] = XTENSA_REG("LEND", XTENSA_OPTION_LOOP),
+ [LCOUNT] = XTENSA_REG("LCOUNT", XTENSA_OPTION_LOOP),
+ [SAR] = XTENSA_REG_BITS("SAR", XTENSA_OPTION_ALL),
+ [BR] = XTENSA_REG("BR", XTENSA_OPTION_BOOLEAN),
+ [LITBASE] = XTENSA_REG("LITBASE", XTENSA_OPTION_EXTENDED_L32R),
+ [SCOMPARE1] = XTENSA_REG("SCOMPARE1", XTENSA_OPTION_CONDITIONAL_STORE),
+ [ACCLO] = XTENSA_REG("ACCLO", XTENSA_OPTION_MAC16),
+ [ACCHI] = XTENSA_REG("ACCHI", XTENSA_OPTION_MAC16),
+ [MR] = XTENSA_REG("MR0", XTENSA_OPTION_MAC16),
+ [MR + 1] = XTENSA_REG("MR1", XTENSA_OPTION_MAC16),
+ [MR + 2] = XTENSA_REG("MR2", XTENSA_OPTION_MAC16),
+ [MR + 3] = XTENSA_REG("MR3", XTENSA_OPTION_MAC16),
+ [WINDOW_BASE] = XTENSA_REG("WINDOW_BASE", XTENSA_OPTION_WINDOWED_REGISTER),
+ [WINDOW_START] = XTENSA_REG("WINDOW_START",
+ XTENSA_OPTION_WINDOWED_REGISTER),
+ [PTEVADDR] = XTENSA_REG("PTEVADDR", XTENSA_OPTION_MMU),
+ [RASID] = XTENSA_REG("RASID", XTENSA_OPTION_MMU),
+ [ITLBCFG] = XTENSA_REG("ITLBCFG", XTENSA_OPTION_MMU),
+ [DTLBCFG] = XTENSA_REG("DTLBCFG", XTENSA_OPTION_MMU),
+ [IBREAKENABLE] = XTENSA_REG("IBREAKENABLE", XTENSA_OPTION_DEBUG),
+ [CACHEATTR] = XTENSA_REG("CACHEATTR", XTENSA_OPTION_CACHEATTR),
+ [ATOMCTL] = XTENSA_REG("ATOMCTL", XTENSA_OPTION_ATOMCTL),
+ [IBREAKA] = XTENSA_REG("IBREAKA0", XTENSA_OPTION_DEBUG),
+ [IBREAKA + 1] = XTENSA_REG("IBREAKA1", XTENSA_OPTION_DEBUG),
+ [DBREAKA] = XTENSA_REG("DBREAKA0", XTENSA_OPTION_DEBUG),
+ [DBREAKA + 1] = XTENSA_REG("DBREAKA1", XTENSA_OPTION_DEBUG),
+ [DBREAKC] = XTENSA_REG("DBREAKC0", XTENSA_OPTION_DEBUG),
+ [DBREAKC + 1] = XTENSA_REG("DBREAKC1", XTENSA_OPTION_DEBUG),
+ [CONFIGID0] = XTENSA_REG_BITS_ACCESS("CONFIGID0", XTENSA_OPTION_ALL, SR_R),
+ [EPC1] = XTENSA_REG("EPC1", XTENSA_OPTION_EXCEPTION),
+ [EPC1 + 1] = XTENSA_REG("EPC2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPC1 + 2] = XTENSA_REG("EPC3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPC1 + 3] = XTENSA_REG("EPC4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPC1 + 4] = XTENSA_REG("EPC5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPC1 + 5] = XTENSA_REG("EPC6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPC1 + 6] = XTENSA_REG("EPC7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [DEPC] = XTENSA_REG("DEPC", XTENSA_OPTION_EXCEPTION),
+ [EPS2] = XTENSA_REG("EPS2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPS2 + 1] = XTENSA_REG("EPS3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPS2 + 2] = XTENSA_REG("EPS4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPS2 + 3] = XTENSA_REG("EPS5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPS2 + 4] = XTENSA_REG("EPS6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EPS2 + 5] = XTENSA_REG("EPS7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [CONFIGID1] = XTENSA_REG_BITS_ACCESS("CONFIGID1", XTENSA_OPTION_ALL, SR_R),
+ [EXCSAVE1] = XTENSA_REG("EXCSAVE1", XTENSA_OPTION_EXCEPTION),
+ [EXCSAVE1 + 1] = XTENSA_REG("EXCSAVE2",
+ XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EXCSAVE1 + 2] = XTENSA_REG("EXCSAVE3",
+ XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EXCSAVE1 + 3] = XTENSA_REG("EXCSAVE4",
+ XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EXCSAVE1 + 4] = XTENSA_REG("EXCSAVE5",
+ XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EXCSAVE1 + 5] = XTENSA_REG("EXCSAVE6",
+ XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [EXCSAVE1 + 6] = XTENSA_REG("EXCSAVE7",
+ XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
+ [CPENABLE] = XTENSA_REG("CPENABLE", XTENSA_OPTION_COPROCESSOR),
+ [INTSET] = XTENSA_REG_ACCESS("INTSET", XTENSA_OPTION_INTERRUPT, SR_RW),
+ [INTCLEAR] = XTENSA_REG_ACCESS("INTCLEAR", XTENSA_OPTION_INTERRUPT, SR_W),
+ [INTENABLE] = XTENSA_REG("INTENABLE", XTENSA_OPTION_INTERRUPT),
+ [PS] = XTENSA_REG_BITS("PS", XTENSA_OPTION_ALL),
+ [VECBASE] = XTENSA_REG("VECBASE", XTENSA_OPTION_RELOCATABLE_VECTOR),
+ [EXCCAUSE] = XTENSA_REG("EXCCAUSE", XTENSA_OPTION_EXCEPTION),
+ [DEBUGCAUSE] = XTENSA_REG_ACCESS("DEBUGCAUSE", XTENSA_OPTION_DEBUG, SR_R),
+ [CCOUNT] = XTENSA_REG("CCOUNT", XTENSA_OPTION_TIMER_INTERRUPT),
+ [PRID] = XTENSA_REG_ACCESS("PRID", XTENSA_OPTION_PROCESSOR_ID, SR_R),
+ [ICOUNT] = XTENSA_REG("ICOUNT", XTENSA_OPTION_DEBUG),
+ [ICOUNTLEVEL] = XTENSA_REG("ICOUNTLEVEL", XTENSA_OPTION_DEBUG),
+ [EXCVADDR] = XTENSA_REG("EXCVADDR", XTENSA_OPTION_EXCEPTION),
+ [CCOMPARE] = XTENSA_REG("CCOMPARE0", XTENSA_OPTION_TIMER_INTERRUPT),
+ [CCOMPARE + 1] = XTENSA_REG("CCOMPARE1",
+ XTENSA_OPTION_TIMER_INTERRUPT),
+ [CCOMPARE + 2] = XTENSA_REG("CCOMPARE2",
+ XTENSA_OPTION_TIMER_INTERRUPT),
+ [MISC] = XTENSA_REG("MISC0", XTENSA_OPTION_MISC_SR),
+ [MISC + 1] = XTENSA_REG("MISC1", XTENSA_OPTION_MISC_SR),
+ [MISC + 2] = XTENSA_REG("MISC2", XTENSA_OPTION_MISC_SR),
+ [MISC + 3] = XTENSA_REG("MISC3", XTENSA_OPTION_MISC_SR),
+};
+
+static const XtensaReg uregnames[256] = {
+ [THREADPTR] = XTENSA_REG("THREADPTR", XTENSA_OPTION_THREAD_POINTER),
+ [FCR] = XTENSA_REG("FCR", XTENSA_OPTION_FP_COPROCESSOR),
+ [FSR] = XTENSA_REG("FSR", XTENSA_OPTION_FP_COPROCESSOR),
+};
+
+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",
+ };
+ static const char * const fregnames[] = {
+ "f0", "f1", "f2", "f3",
+ "f4", "f5", "f6", "f7",
+ "f8", "f9", "f10", "f11",
+ "f12", "f13", "f14", "f15",
+ };
+ int i;
+
+ cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
+ cpu_pc = tcg_global_mem_new_i32(TCG_AREG0,
+ offsetof(CPUXtensaState, pc), "pc");
+
+ for (i = 0; i < 16; i++) {
+ cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0,
+ offsetof(CPUXtensaState, regs[i]),
+ regnames[i]);
+ }
+
+ for (i = 0; i < 16; i++) {
+ cpu_FR[i] = tcg_global_mem_new_i32(TCG_AREG0,
+ offsetof(CPUXtensaState, fregs[i].f32[FP_F32_LOW]),
+ fregnames[i]);
+ }
+
+ for (i = 0; i < 256; ++i) {
+ if (sregnames[i].name) {
+ cpu_SR[i] = tcg_global_mem_new_i32(TCG_AREG0,
+ offsetof(CPUXtensaState, sregs[i]),
+ sregnames[i].name);
+ }
+ }
+
+ for (i = 0; i < 256; ++i) {
+ if (uregnames[i].name) {
+ cpu_UR[i] = tcg_global_mem_new_i32(TCG_AREG0,
+ offsetof(CPUXtensaState, uregs[i]),
+ uregnames[i].name);
+ }
+ }
+}
+
+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);
+ gen_helper_advance_ccount(cpu_env, tmp);
+ tcg_temp_free(tmp);
+ }
+ dc->ccount_delta = 0;
+}
+
+static void gen_exception(DisasContext *dc, int excp)
+{
+ TCGv_i32 tmp = tcg_const_i32(excp);
+ gen_advance_ccount(dc);
+ gen_helper_exception(cpu_env, 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(cpu_env, tpc, tcause);
+ tcg_temp_free(tpc);
+ tcg_temp_free(tcause);
+ if (cause == ILLEGAL_INSTRUCTION_CAUSE ||
+ cause == SYSCALL_CAUSE) {
+ dc->is_jmp = DISAS_UPDATE;
+ }
+}
+
+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(cpu_env, tpc, tcause, vaddr);
+ tcg_temp_free(tpc);
+ tcg_temp_free(tcause);
+}
+
+static void gen_debug_exception(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_debug_exception(cpu_env, tpc, tcause);
+ tcg_temp_free(tpc);
+ tcg_temp_free(tcause);
+ if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) {
+ dc->is_jmp = DISAS_UPDATE;
+ }
+}
+
+static bool gen_check_privilege(DisasContext *dc)
+{
+ if (dc->cring) {
+ gen_exception_cause(dc, PRIVILEGED_CAUSE);
+ dc->is_jmp = DISAS_UPDATE;
+ return false;
+ }
+ return true;
+}
+
+static bool gen_check_cpenable(DisasContext *dc, unsigned cp)
+{
+ if (option_enabled(dc, XTENSA_OPTION_COPROCESSOR) &&
+ !(dc->cpenable & (1 << cp))) {
+ gen_exception_cause(dc, COPROCESSOR0_DISABLED + cp);
+ dc->is_jmp = DISAS_UPDATE;
+ return false;
+ }
+ return true;
+}
+
+static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot)
+{
+ tcg_gen_mov_i32(cpu_pc, dest);
+ gen_advance_ccount(dc);
+ if (dc->icount) {
+ tcg_gen_mov_i32(cpu_SR[ICOUNT], dc->next_icount);
+ }
+ if (dc->singlestep_enabled) {
+ gen_exception(dc, EXCP_DEBUG);
+ } else {
+ if (slot >= 0) {
+ tcg_gen_goto_tb(slot);
+ tcg_gen_exit_tb((uintptr_t)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->tb->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->tb->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) {
+ TCGLabel *label = gen_new_label();
+
+ gen_advance_ccount(dc);
+ 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)
+{
+ TCGLabel *label = gen_new_label();
+
+ gen_advance_ccount(dc);
+ 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 bool gen_check_sr(DisasContext *dc, uint32_t sr, unsigned access)
+{
+ if (!xtensa_option_bits_enabled(dc->config, sregnames[sr].opt_bits)) {
+ if (sregnames[sr].name) {
+ qemu_log("SR %s is not configured\n", sregnames[sr].name);
+ } else {
+ qemu_log("SR %d is not implemented\n", sr);
+ }
+ gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
+ return false;
+ } else if (!(sregnames[sr].access & access)) {
+ static const char * const access_text[] = {
+ [SR_R] = "rsr",
+ [SR_W] = "wsr",
+ [SR_X] = "xsr",
+ };
+ assert(access < ARRAY_SIZE(access_text) && access_text[access]);
+ qemu_log("SR %s is not available for %s\n", sregnames[sr].name,
+ access_text[access]);
+ gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
+ return false;
+ }
+ return true;
+}
+
+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 (rsr_handler[sr]) {
+ rsr_handler[sr](dc, d, sr);
+ } else {
+ tcg_gen_mov_i32(d, cpu_SR[sr]);
+ }
+}
+
+static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ gen_helper_wsr_lbeg(cpu_env, s);
+ gen_jumpi_check_loop_end(dc, 0);
+}
+
+static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ gen_helper_wsr_lend(cpu_env, s);
+ gen_jumpi_check_loop_end(dc, 0);
+}
+
+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_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ tcg_gen_ext8s_i32(cpu_SR[sr], s);
+}
+
+static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ gen_helper_wsr_windowbase(cpu_env, v);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
+static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], v, (1 << dc->config->nareg / 4) - 1);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
+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(cpu_env, 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_ibreakenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ gen_helper_wsr_ibreakenable(cpu_env, v);
+ gen_jumpi_check_loop_end(dc, 0);
+}
+
+static void gen_wsr_atomctl(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], v, 0x3f);
+}
+
+static void gen_wsr_ibreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ unsigned id = sr - IBREAKA;
+
+ if (id < dc->config->nibreak) {
+ TCGv_i32 tmp = tcg_const_i32(id);
+ gen_helper_wsr_ibreaka(cpu_env, tmp, v);
+ tcg_temp_free(tmp);
+ gen_jumpi_check_loop_end(dc, 0);
+ }
+}
+
+static void gen_wsr_dbreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ unsigned id = sr - DBREAKA;
+
+ if (id < dc->config->ndbreak) {
+ TCGv_i32 tmp = tcg_const_i32(id);
+ gen_helper_wsr_dbreaka(cpu_env, tmp, v);
+ tcg_temp_free(tmp);
+ }
+}
+
+static void gen_wsr_dbreakc(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ unsigned id = sr - DBREAKC;
+
+ if (id < dc->config->ndbreak) {
+ TCGv_i32 tmp = tcg_const_i32(id);
+ gen_helper_wsr_dbreakc(cpu_env, tmp, v);
+ tcg_temp_free(tmp);
+ }
+}
+
+static void gen_wsr_cpenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], v, 0xff);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
+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);
+ 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_icount(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ if (dc->icount) {
+ tcg_gen_mov_i32(dc->next_icount, v);
+ } else {
+ tcg_gen_mov_i32(cpu_SR[sr], v);
+ }
+}
+
+static void gen_wsr_icountlevel(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], v, 0xf);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
+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,
+ [ACCHI] = gen_wsr_acchi,
+ [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,
+ [IBREAKENABLE] = gen_wsr_ibreakenable,
+ [ATOMCTL] = gen_wsr_atomctl,
+ [IBREAKA] = gen_wsr_ibreaka,
+ [IBREAKA + 1] = gen_wsr_ibreaka,
+ [DBREAKA] = gen_wsr_dbreaka,
+ [DBREAKA + 1] = gen_wsr_dbreaka,
+ [DBREAKC] = gen_wsr_dbreakc,
+ [DBREAKC + 1] = gen_wsr_dbreakc,
+ [CPENABLE] = gen_wsr_cpenable,
+ [INTSET] = gen_wsr_intset,
+ [INTCLEAR] = gen_wsr_intclear,
+ [INTENABLE] = gen_wsr_intenable,
+ [PS] = gen_wsr_ps,
+ [ICOUNT] = gen_wsr_icount,
+ [ICOUNTLEVEL] = gen_wsr_icountlevel,
+ [CCOMPARE] = gen_wsr_ccompare,
+ [CCOMPARE + 1] = gen_wsr_ccompare,
+ [CCOMPARE + 2] = gen_wsr_ccompare,
+ };
+
+ if (wsr_handler[sr]) {
+ wsr_handler[sr](dc, sr, s);
+ } else {
+ tcg_gen_mov_i32(cpu_SR[sr], s);
+ }
+}
+
+static void gen_wur(uint32_t ur, TCGv_i32 s)
+{
+ switch (ur) {
+ case FCR:
+ gen_helper_wur_fcr(cpu_env, s);
+ break;
+
+ case FSR:
+ tcg_gen_andi_i32(cpu_UR[ur], s, 0xffffff80);
+ break;
+
+ default:
+ tcg_gen_mov_i32(cpu_UR[ur], s);
+ break;
+ }
+}
+
+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) {
+ TCGLabel *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(cpu_env, pc, intlevel);
+ tcg_temp_free(pc);
+ tcg_temp_free(intlevel);
+}
+
+static bool gen_window_check1(DisasContext *dc, unsigned r1)
+{
+ if (r1 / 4 > dc->window) {
+ TCGv_i32 pc = tcg_const_i32(dc->pc);
+ TCGv_i32 w = tcg_const_i32(r1 / 4);
+
+ gen_advance_ccount(dc);
+ gen_helper_window_check(cpu_env, pc, w);
+ dc->is_jmp = DISAS_UPDATE;
+ return false;
+ }
+ return true;
+}
+
+static bool gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2)
+{
+ return gen_window_check1(dc, r1 > r2 ? r1 : r2);
+}
+
+static bool gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2,
+ unsigned r3)
+{
+ return gen_window_check2(dc, r1, r2 > r3 ? r2 : r3);
+}
+
+static TCGv_i32 gen_mac16_m(TCGv_i32 v, bool hi, bool is_unsigned)
+{
+ TCGv_i32 m = tcg_temp_new_i32();
+
+ if (hi) {
+ (is_unsigned ? tcg_gen_shri_i32 : tcg_gen_sari_i32)(m, v, 16);
+ } else {
+ (is_unsigned ? tcg_gen_ext16u_i32 : tcg_gen_ext16s_i32)(m, v);
+ }
+ return m;
+}
+
+static inline unsigned xtensa_op0_insn_len(unsigned op0)
+{
+ return op0 >= 8 ? 2 : 3;
+}
+
+static void disas_xtensa_insn(CPUXtensaState *env, 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 RRR_X ((RRR_R & 0x4) >> 2)
+#define RRR_Y ((RRR_T & 0x4) >> 2)
+#define RRR_W (RRR_R & 0x3)
+
+#define RRRN_R RRR_R
+#define RRRN_S RRR_S
+#define RRRN_T RRR_T
+
+#define RRI4_R RRR_R
+#define RRI4_S RRR_S
+#define RRI4_T RRR_T
+#ifdef TARGET_WORDS_BIGENDIAN
+#define RRI4_IMM4 ((b2) & 0xf)
+#else
+#define RRI4_IMM4 (((b2) & 0xf0) >> 4)
+#endif
+
+#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 = cpu_ldub_code(env, dc->pc);
+ uint8_t b1 = cpu_ldub_code(env, dc->pc + 1);
+ uint8_t b2 = 0;
+ unsigned len = xtensa_op0_insn_len(OP0);
+
+ 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
+ };
+
+ switch (len) {
+ case 2:
+ HAS_OPTION(XTENSA_OPTION_CODE_DENSITY);
+ break;
+
+ case 3:
+ b2 = cpu_ldub_code(env, dc->pc + 2);
+ break;
+
+ default:
+ RESERVED();
+ }
+ dc->next_pc = dc->pc + len;
+
+ 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*/
+ if (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, cpu_env, tmp);
+ gen_jump(dc, tmp);
+ tcg_temp_free(tmp);
+ }
+ break;
+
+ case 3: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 3: /*CALLX*/
+ if (!gen_window_check2(dc, CALLX_S, CALLX_N << 2)) {
+ break;
+ }
+ 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);
+ if (gen_window_check2(dc, RRR_T, RRR_S)) {
+ TCGv_i32 pc = tcg_const_i32(dc->pc);
+ gen_advance_ccount(dc);
+ gen_helper_movsp(cpu_env, 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*/
+ if (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*/
+ if (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);
+ if (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(cpu_env);
+ 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) {
+ if (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_DEBUG);
+ if (dc->debug) {
+ gen_debug_exception(dc, DEBUGCAUSE_BI);
+ }
+ 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()) {
+ if (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);
+ if (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);
+ if (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*/
+ if (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*/
+ if (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*/
+ if (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*/
+ if (gen_window_check1(dc, RRR_S)) {
+ gen_right_shift_sar(dc, cpu_R[RRR_S]);
+ }
+ break;
+
+ case 1: /*SSL*/
+ if (gen_window_check1(dc, RRR_S)) {
+ gen_left_shift_sar(dc, cpu_R[RRR_S]);
+ }
+ break;
+
+ case 2: /*SSA8L*/
+ if (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*/
+ if (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);
+ if (gen_check_privilege(dc)) {
+ TCGv_i32 tmp = tcg_const_i32(
+ RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0));
+ gen_helper_rotw(cpu_env, tmp);
+ tcg_temp_free(tmp);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+ }
+ break;
+
+ case 14: /*NSAu*/
+ HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);
+ if (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_NSA);
+ if (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));
+ if (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_env, cpu_R[RRR_S], dtlb);
+ break;
+
+ case 4: /*IITLB*/ /*IDTLB*/
+ gen_helper_itlb(cpu_env, 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_env, cpu_R[RRR_S], dtlb);
+ break;
+
+ case 6: /*WITLB*/ /*WDTLB*/
+ gen_helper_wtlb(
+ cpu_env, 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_env, cpu_R[RRR_S], dtlb);
+ break;
+
+ default:
+ tcg_temp_free(dtlb);
+ RESERVED();
+ break;
+ }
+ tcg_temp_free(dtlb);
+ }
+ break;
+
+ case 6: /*RT0*/
+ if (!gen_window_check2(dc, RRR_R, RRR_T)) {
+ break;
+ }
+ switch (RRR_S) {
+ case 0: /*NEG*/
+ tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);
+ break;
+
+ case 1: /*ABS*/
+ {
+ TCGv_i32 zero = tcg_const_i32(0);
+ TCGv_i32 neg = tcg_temp_new_i32();
+
+ tcg_gen_neg_i32(neg, cpu_R[RRR_T]);
+ tcg_gen_movcond_i32(TCG_COND_GE, cpu_R[RRR_R],
+ cpu_R[RRR_T], zero, cpu_R[RRR_T], neg);
+ tcg_temp_free(neg);
+ tcg_temp_free(zero);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 7: /*reserved*/
+ RESERVED();
+ break;
+
+ case 8: /*ADD*/
+ if (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:
+ if (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*/
+ if (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:
+ if (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:
+ if (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:
+ if (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*/
+ if (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*/
+ if (gen_check_sr(dc, RSR_SR, SR_X) &&
+ (RSR_SR < 64 || gen_check_privilege(dc)) &&
+ gen_window_check1(dc, RRR_T)) {
+ TCGv_i32 tmp = tcg_temp_new_i32();
+
+ 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);
+ }
+ 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*/
+ if (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*/
+ if (!gen_window_check2(dc, RRR_R, RRR_T)) {
+ break;
+ }
+ 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*/
+ if (!gen_window_check2(dc, RRR_R, RRR_S)) {
+ break;
+ }
+ 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*/
+ if (!gen_window_check2(dc, RRR_R, RRR_T)) {
+ break;
+ }
+ 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);
+ if (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);
+ if (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)) {
+ break;
+ }
+
+ if (OP2 >= 12) {
+ HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV);
+ TCGLabel *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_HIGH);
+ {
+ TCGv lo = tcg_temp_new();
+
+ if (OP2 == 10) {
+ tcg_gen_mulu2_i32(lo, cpu_R[RRR_R],
+ cpu_R[RRR_S], cpu_R[RRR_T]);
+ } else {
+ tcg_gen_muls2_i32(lo, cpu_R[RRR_R],
+ cpu_R[RRR_S], cpu_R[RRR_T]);
+ }
+ tcg_temp_free(lo);
+ }
+ 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*/
+ {
+ TCGLabel *label1 = gen_new_label();
+ TCGLabel *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 (gen_check_sr(dc, RSR_SR, SR_R) &&
+ (RSR_SR < 64 || gen_check_privilege(dc)) &&
+ gen_window_check1(dc, RRR_T)) {
+ gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
+ }
+ break;
+
+ case 1: /*WSR*/
+ if (gen_check_sr(dc, RSR_SR, SR_W) &&
+ (RSR_SR < 64 || gen_check_privilege(dc)) &&
+ gen_window_check1(dc, RRR_T)) {
+ gen_wsr(dc, RSR_SR, cpu_R[RRR_T]);
+ }
+ break;
+
+ case 2: /*SEXTu*/
+ HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT);
+ if (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_CLAMPS);
+ if (gen_window_check2(dc, RRR_R, RRR_S)) {
+ TCGv_i32 tmp1 = tcg_temp_new_i32();
+ TCGv_i32 tmp2 = tcg_temp_new_i32();
+ TCGv_i32 zero = tcg_const_i32(0);
+
+ 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_sari_i32(tmp1, cpu_R[RRR_S], 31);
+ tcg_gen_xori_i32(tmp1, tmp1, 0xffffffff >> (25 - RRR_T));
+
+ tcg_gen_movcond_i32(TCG_COND_EQ, cpu_R[RRR_R], tmp2, zero,
+ cpu_R[RRR_S], tmp1);
+ tcg_temp_free(tmp1);
+ tcg_temp_free(tmp2);
+ tcg_temp_free(zero);
+ }
+ break;
+
+ case 4: /*MINu*/
+ case 5: /*MAXu*/
+ case 6: /*MINUu*/
+ case 7: /*MAXUu*/
+ HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX);
+ if (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
+ };
+ tcg_gen_movcond_i32(cond[OP2 - 4], cpu_R[RRR_R],
+ cpu_R[RRR_S], cpu_R[RRR_T],
+ cpu_R[RRR_S], cpu_R[RRR_T]);
+ }
+ break;
+
+ case 8: /*MOVEQZ*/
+ case 9: /*MOVNEZ*/
+ case 10: /*MOVLTZ*/
+ case 11: /*MOVGEZ*/
+ if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
+ static const TCGCond cond[] = {
+ TCG_COND_EQ,
+ TCG_COND_NE,
+ TCG_COND_LT,
+ TCG_COND_GE,
+ };
+ TCGv_i32 zero = tcg_const_i32(0);
+
+ tcg_gen_movcond_i32(cond[OP2 - 8], cpu_R[RRR_R],
+ cpu_R[RRR_T], zero, cpu_R[RRR_S], cpu_R[RRR_R]);
+ tcg_temp_free(zero);
+ }
+ break;
+
+ case 12: /*MOVFp*/
+ case 13: /*MOVTp*/
+ HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ if (gen_window_check2(dc, RRR_R, RRR_S)) {
+ TCGv_i32 zero = tcg_const_i32(0);
+ TCGv_i32 tmp = tcg_temp_new_i32();
+
+ tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
+ tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ,
+ cpu_R[RRR_R], tmp, zero,
+ cpu_R[RRR_S], cpu_R[RRR_R]);
+
+ tcg_temp_free(tmp);
+ tcg_temp_free(zero);
+ }
+ break;
+
+ case 14: /*RUR*/
+ if (gen_window_check1(dc, RRR_R)) {
+ int st = (RRR_S << 4) + RRR_T;
+ if (uregnames[st].name) {
+ tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]);
+ } else {
+ qemu_log("RUR %d not implemented, ", st);
+ TBD();
+ }
+ }
+ break;
+
+ case 15: /*WUR*/
+ if (gen_window_check1(dc, RRR_T)) {
+ if (uregnames[RSR_SR].name) {
+ gen_wur(RSR_SR, cpu_R[RRR_T]);
+ } else {
+ qemu_log("WUR %d not implemented, ", RSR_SR);
+ TBD();
+ }
+ }
+ break;
+
+ }
+ break;
+
+ case 4: /*EXTUI*/
+ case 5:
+ if (gen_window_check2(dc, RRR_R, RRR_T)) {
+ int shiftimm = RRR_S | ((OP1 & 1) << 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*/
+ switch (OP2) {
+ case 0: /*LSXf*/
+ case 1: /*LSXUf*/
+ case 4: /*SSXf*/
+ case 5: /*SSXUf*/
+ HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
+ if (gen_window_check2(dc, RRR_S, RRR_T) &&
+ gen_check_cpenable(dc, 0)) {
+ TCGv_i32 addr = tcg_temp_new_i32();
+ tcg_gen_add_i32(addr, cpu_R[RRR_S], cpu_R[RRR_T]);
+ gen_load_store_alignment(dc, 2, addr, false);
+ if (OP2 & 0x4) {
+ tcg_gen_qemu_st32(cpu_FR[RRR_R], addr, dc->cring);
+ } else {
+ tcg_gen_qemu_ld32u(cpu_FR[RRR_R], addr, dc->cring);
+ }
+ if (OP2 & 0x1) {
+ tcg_gen_mov_i32(cpu_R[RRR_S], addr);
+ }
+ tcg_temp_free(addr);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 9: /*LSC4*/
+ if (!gen_window_check2(dc, RRR_S, RRR_T)) {
+ break;
+ }
+ switch (OP2) {
+ case 0: /*L32E*/
+ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ if (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);
+ if (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);
+ switch (OP2) {
+ case 0: /*ADD.Sf*/
+ if (gen_check_cpenable(dc, 0)) {
+ gen_helper_add_s(cpu_FR[RRR_R], cpu_env,
+ cpu_FR[RRR_S], cpu_FR[RRR_T]);
+ }
+ break;
+
+ case 1: /*SUB.Sf*/
+ if (gen_check_cpenable(dc, 0)) {
+ gen_helper_sub_s(cpu_FR[RRR_R], cpu_env,
+ cpu_FR[RRR_S], cpu_FR[RRR_T]);
+ }
+ break;
+
+ case 2: /*MUL.Sf*/
+ if (gen_check_cpenable(dc, 0)) {
+ gen_helper_mul_s(cpu_FR[RRR_R], cpu_env,
+ cpu_FR[RRR_S], cpu_FR[RRR_T]);
+ }
+ break;
+
+ case 4: /*MADD.Sf*/
+ if (gen_check_cpenable(dc, 0)) {
+ gen_helper_madd_s(cpu_FR[RRR_R], cpu_env,
+ cpu_FR[RRR_R], cpu_FR[RRR_S],
+ cpu_FR[RRR_T]);
+ }
+ break;
+
+ case 5: /*MSUB.Sf*/
+ if (gen_check_cpenable(dc, 0)) {
+ gen_helper_msub_s(cpu_FR[RRR_R], cpu_env,
+ cpu_FR[RRR_R], cpu_FR[RRR_S],
+ cpu_FR[RRR_T]);
+ }
+ break;
+
+ case 8: /*ROUND.Sf*/
+ case 9: /*TRUNC.Sf*/
+ case 10: /*FLOOR.Sf*/
+ case 11: /*CEIL.Sf*/
+ case 14: /*UTRUNC.Sf*/
+ if (gen_window_check1(dc, RRR_R) &&
+ gen_check_cpenable(dc, 0)) {
+ static const unsigned rounding_mode_const[] = {
+ float_round_nearest_even,
+ float_round_to_zero,
+ float_round_down,
+ float_round_up,
+ [6] = float_round_to_zero,
+ };
+ TCGv_i32 rounding_mode = tcg_const_i32(
+ rounding_mode_const[OP2 & 7]);
+ TCGv_i32 scale = tcg_const_i32(RRR_T);
+
+ if (OP2 == 14) {
+ gen_helper_ftoui(cpu_R[RRR_R], cpu_FR[RRR_S],
+ rounding_mode, scale);
+ } else {
+ gen_helper_ftoi(cpu_R[RRR_R], cpu_FR[RRR_S],
+ rounding_mode, scale);
+ }
+
+ tcg_temp_free(rounding_mode);
+ tcg_temp_free(scale);
+ }
+ break;
+
+ case 12: /*FLOAT.Sf*/
+ case 13: /*UFLOAT.Sf*/
+ if (gen_window_check1(dc, RRR_S) &&
+ gen_check_cpenable(dc, 0)) {
+ TCGv_i32 scale = tcg_const_i32(-RRR_T);
+
+ if (OP2 == 13) {
+ gen_helper_uitof(cpu_FR[RRR_R], cpu_env,
+ cpu_R[RRR_S], scale);
+ } else {
+ gen_helper_itof(cpu_FR[RRR_R], cpu_env,
+ cpu_R[RRR_S], scale);
+ }
+ tcg_temp_free(scale);
+ }
+ break;
+
+ case 15: /*FP1OP*/
+ switch (RRR_T) {
+ case 0: /*MOV.Sf*/
+ if (gen_check_cpenable(dc, 0)) {
+ tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_FR[RRR_S]);
+ }
+ break;
+
+ case 1: /*ABS.Sf*/
+ if (gen_check_cpenable(dc, 0)) {
+ gen_helper_abs_s(cpu_FR[RRR_R], cpu_FR[RRR_S]);
+ }
+ break;
+
+ case 4: /*RFRf*/
+ if (gen_window_check1(dc, RRR_R) &&
+ gen_check_cpenable(dc, 0)) {
+ tcg_gen_mov_i32(cpu_R[RRR_R], cpu_FR[RRR_S]);
+ }
+ break;
+
+ case 5: /*WFRf*/
+ if (gen_window_check1(dc, RRR_S) &&
+ gen_check_cpenable(dc, 0)) {
+ tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_R[RRR_S]);
+ }
+ break;
+
+ case 6: /*NEG.Sf*/
+ if (gen_check_cpenable(dc, 0)) {
+ gen_helper_neg_s(cpu_FR[RRR_R], cpu_FR[RRR_S]);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 11: /*FP1*/
+ HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
+
+#define gen_compare(rel, br, a, b) \
+ do { \
+ if (gen_check_cpenable(dc, 0)) { \
+ TCGv_i32 bit = tcg_const_i32(1 << br); \
+ \
+ gen_helper_##rel(cpu_env, bit, cpu_FR[a], cpu_FR[b]); \
+ tcg_temp_free(bit); \
+ } \
+ } while (0)
+
+ switch (OP2) {
+ case 1: /*UN.Sf*/
+ gen_compare(un_s, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 2: /*OEQ.Sf*/
+ gen_compare(oeq_s, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 3: /*UEQ.Sf*/
+ gen_compare(ueq_s, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 4: /*OLT.Sf*/
+ gen_compare(olt_s, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 5: /*ULT.Sf*/
+ gen_compare(ult_s, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 6: /*OLE.Sf*/
+ gen_compare(ole_s, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 7: /*ULE.Sf*/
+ gen_compare(ule_s, RRR_R, RRR_S, RRR_T);
+ break;
+
+#undef gen_compare
+
+ case 8: /*MOVEQZ.Sf*/
+ case 9: /*MOVNEZ.Sf*/
+ case 10: /*MOVLTZ.Sf*/
+ case 11: /*MOVGEZ.Sf*/
+ if (gen_window_check1(dc, RRR_T) &&
+ gen_check_cpenable(dc, 0)) {
+ static const TCGCond cond[] = {
+ TCG_COND_EQ,
+ TCG_COND_NE,
+ TCG_COND_LT,
+ TCG_COND_GE,
+ };
+ TCGv_i32 zero = tcg_const_i32(0);
+
+ tcg_gen_movcond_i32(cond[OP2 - 8], cpu_FR[RRR_R],
+ cpu_R[RRR_T], zero, cpu_FR[RRR_S], cpu_FR[RRR_R]);
+ tcg_temp_free(zero);
+ }
+ break;
+
+ case 12: /*MOVF.Sf*/
+ case 13: /*MOVT.Sf*/
+ HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ if (gen_check_cpenable(dc, 0)) {
+ TCGv_i32 zero = tcg_const_i32(0);
+ TCGv_i32 tmp = tcg_temp_new_i32();
+
+ tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
+ tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ,
+ cpu_FR[RRR_R], tmp, zero,
+ cpu_FR[RRR_S], cpu_FR[RRR_R]);
+
+ tcg_temp_free(tmp);
+ tcg_temp_free(zero);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 1: /*L32R*/
+ if (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 { \
+ if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \
+ TCGv_i32 addr = tcg_temp_new_i32(); \
+ \
+ 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;
+
+#define gen_dcache_hit_test(w, shift) do { \
+ if (gen_window_check1(dc, RRI##w##_S)) { \
+ TCGv_i32 addr = tcg_temp_new_i32(); \
+ TCGv_i32 res = tcg_temp_new_i32(); \
+ tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \
+ RRI##w##_IMM##w << shift); \
+ tcg_gen_qemu_ld8u(res, addr, dc->cring); \
+ tcg_temp_free(addr); \
+ tcg_temp_free(res); \
+ } \
+ } while (0)
+
+#define gen_dcache_hit_test4() gen_dcache_hit_test(4, 4)
+#define gen_dcache_hit_test8() gen_dcache_hit_test(8, 2)
+
+ case 7: /*CACHEc*/
+ if (RRI8_T < 8) {
+ HAS_OPTION(XTENSA_OPTION_DCACHE);
+ }
+
+ switch (RRI8_T) {
+ case 0: /*DPFRc*/
+ gen_window_check1(dc, RRI8_S);
+ break;
+
+ case 1: /*DPFWc*/
+ gen_window_check1(dc, RRI8_S);
+ break;
+
+ case 2: /*DPFROc*/
+ gen_window_check1(dc, RRI8_S);
+ break;
+
+ case 3: /*DPFWOc*/
+ gen_window_check1(dc, RRI8_S);
+ break;
+
+ case 4: /*DHWBc*/
+ gen_dcache_hit_test8();
+ break;
+
+ case 5: /*DHWBIc*/
+ gen_dcache_hit_test8();
+ break;
+
+ case 6: /*DHIc*/
+ if (gen_check_privilege(dc)) {
+ gen_dcache_hit_test8();
+ }
+ break;
+
+ case 7: /*DIIc*/
+ if (gen_check_privilege(dc)) {
+ gen_window_check1(dc, RRI8_S);
+ }
+ break;
+
+ case 8: /*DCEc*/
+ switch (OP1) {
+ case 0: /*DPFLl*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
+ if (gen_check_privilege(dc)) {
+ gen_dcache_hit_test4();
+ }
+ break;
+
+ case 2: /*DHUl*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
+ if (gen_check_privilege(dc)) {
+ gen_dcache_hit_test4();
+ }
+ break;
+
+ case 3: /*DIUl*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
+ if (gen_check_privilege(dc)) {
+ gen_window_check1(dc, RRI4_S);
+ }
+ break;
+
+ case 4: /*DIWBc*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE);
+ if (gen_check_privilege(dc)) {
+ gen_window_check1(dc, RRI4_S);
+ }
+ break;
+
+ case 5: /*DIWBIc*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE);
+ if (gen_check_privilege(dc)) {
+ gen_window_check1(dc, RRI4_S);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+
+ }
+ break;
+
+#undef gen_dcache_hit_test
+#undef gen_dcache_hit_test4
+#undef gen_dcache_hit_test8
+
+#define gen_icache_hit_test(w, shift) do { \
+ if (gen_window_check1(dc, RRI##w##_S)) { \
+ TCGv_i32 addr = tcg_temp_new_i32(); \
+ tcg_gen_movi_i32(cpu_pc, dc->pc); \
+ tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \
+ RRI##w##_IMM##w << shift); \
+ gen_helper_itlb_hit_test(cpu_env, addr); \
+ tcg_temp_free(addr); \
+ }\
+ } while (0)
+
+#define gen_icache_hit_test4() gen_icache_hit_test(4, 4)
+#define gen_icache_hit_test8() gen_icache_hit_test(8, 2)
+
+ case 12: /*IPFc*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE);
+ gen_window_check1(dc, RRI8_S);
+ break;
+
+ case 13: /*ICEc*/
+ switch (OP1) {
+ case 0: /*IPFLl*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
+ if (gen_check_privilege(dc)) {
+ gen_icache_hit_test4();
+ }
+ break;
+
+ case 2: /*IHUl*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
+ if (gen_check_privilege(dc)) {
+ gen_icache_hit_test4();
+ }
+ break;
+
+ case 3: /*IIUl*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
+ if (gen_check_privilege(dc)) {
+ gen_window_check1(dc, RRI4_S);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 14: /*IHIc*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE);
+ gen_icache_hit_test8();
+ break;
+
+ case 15: /*IIIc*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE);
+ if (gen_check_privilege(dc)) {
+ gen_window_check1(dc, RRI8_S);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+#undef gen_icache_hit_test
+#undef gen_icache_hit_test4
+#undef gen_icache_hit_test8
+
+ case 9: /*L16SI*/
+ gen_load_store(ld16s, 1);
+ break;
+#undef gen_load_store
+
+ case 10: /*MOVI*/
+ if (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 { \
+ if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \
+ TCGv_i32 addr = tcg_temp_local_new_i32(); \
+ 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*/
+ if (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*/
+ if (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_CONDITIONAL_STORE);
+ if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
+ TCGLabel *label = gen_new_label();
+ TCGv_i32 tmp = tcg_temp_local_new_i32();
+ TCGv_i32 addr = tcg_temp_local_new_i32();
+ TCGv_i32 tpc;
+
+ 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);
+
+ gen_advance_ccount(dc);
+ tpc = tcg_const_i32(dc->pc);
+ gen_helper_check_atomctl(cpu_env, tpc, addr);
+ 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(tpc);
+ 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*/
+ switch (RRI8_R) {
+ case 0: /*LSIf*/
+ case 4: /*SSIf*/
+ case 8: /*LSIUf*/
+ case 12: /*SSIUf*/
+ HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
+ if (gen_window_check1(dc, RRI8_S) &&
+ gen_check_cpenable(dc, 0)) {
+ TCGv_i32 addr = tcg_temp_new_i32();
+ tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
+ gen_load_store_alignment(dc, 2, addr, false);
+ if (RRI8_R & 0x4) {
+ tcg_gen_qemu_st32(cpu_FR[RRI8_T], addr, dc->cring);
+ } else {
+ tcg_gen_qemu_ld32u(cpu_FR[RRI8_T], addr, dc->cring);
+ }
+ if (RRI8_R & 0x8) {
+ tcg_gen_mov_i32(cpu_R[RRI8_S], addr);
+ }
+ tcg_temp_free(addr);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 4: /*MAC16d*/
+ HAS_OPTION(XTENSA_OPTION_MAC16);
+ {
+ enum {
+ MAC16_UMUL = 0x0,
+ MAC16_MUL = 0x4,
+ MAC16_MULA = 0x8,
+ MAC16_MULS = 0xc,
+ MAC16_NONE = 0xf,
+ } op = OP1 & 0xc;
+ bool is_m1_sr = (OP2 & 0x3) == 2;
+ bool is_m2_sr = (OP2 & 0xc) == 0;
+ uint32_t ld_offset = 0;
+
+ if (OP2 > 9) {
+ RESERVED();
+ }
+
+ switch (OP2 & 2) {
+ case 0: /*MACI?/MACC?*/
+ is_m1_sr = true;
+ ld_offset = (OP2 & 1) ? -4 : 4;
+
+ if (OP2 >= 8) { /*MACI/MACC*/
+ if (OP1 == 0) { /*LDINC/LDDEC*/
+ op = MAC16_NONE;
+ } else {
+ RESERVED();
+ }
+ } else if (op != MAC16_MULA) { /*MULA.*.*.LDINC/LDDEC*/
+ RESERVED();
+ }
+ break;
+
+ case 2: /*MACD?/MACA?*/
+ if (op == MAC16_UMUL && OP2 != 7) { /*UMUL only in MACAA*/
+ RESERVED();
+ }
+ break;
+ }
+
+ if (op != MAC16_NONE) {
+ if (!is_m1_sr && !gen_window_check1(dc, RRR_S)) {
+ break;
+ }
+ if (!is_m2_sr && !gen_window_check1(dc, RRR_T)) {
+ break;
+ }
+ }
+
+ if (ld_offset && !gen_window_check1(dc, RRR_S)) {
+ break;
+ }
+
+ {
+ TCGv_i32 vaddr = tcg_temp_new_i32();
+ TCGv_i32 mem32 = tcg_temp_new_i32();
+
+ if (ld_offset) {
+ tcg_gen_addi_i32(vaddr, cpu_R[RRR_S], ld_offset);
+ gen_load_store_alignment(dc, 2, vaddr, false);
+ tcg_gen_qemu_ld32u(mem32, vaddr, dc->cring);
+ }
+ if (op != MAC16_NONE) {
+ TCGv_i32 m1 = gen_mac16_m(
+ is_m1_sr ? cpu_SR[MR + RRR_X] : cpu_R[RRR_S],
+ OP1 & 1, op == MAC16_UMUL);
+ TCGv_i32 m2 = gen_mac16_m(
+ is_m2_sr ? cpu_SR[MR + 2 + RRR_Y] : cpu_R[RRR_T],
+ OP1 & 2, op == MAC16_UMUL);
+
+ if (op == MAC16_MUL || op == MAC16_UMUL) {
+ tcg_gen_mul_i32(cpu_SR[ACCLO], m1, m2);
+ if (op == MAC16_UMUL) {
+ tcg_gen_movi_i32(cpu_SR[ACCHI], 0);
+ } else {
+ tcg_gen_sari_i32(cpu_SR[ACCHI], cpu_SR[ACCLO], 31);
+ }
+ } else {
+ TCGv_i32 lo = tcg_temp_new_i32();
+ TCGv_i32 hi = tcg_temp_new_i32();
+
+ tcg_gen_mul_i32(lo, m1, m2);
+ tcg_gen_sari_i32(hi, lo, 31);
+ if (op == MAC16_MULA) {
+ tcg_gen_add2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI],
+ cpu_SR[ACCLO], cpu_SR[ACCHI],
+ lo, hi);
+ } else {
+ tcg_gen_sub2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI],
+ cpu_SR[ACCLO], cpu_SR[ACCHI],
+ lo, hi);
+ }
+ tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]);
+
+ tcg_temp_free_i32(lo);
+ tcg_temp_free_i32(hi);
+ }
+ tcg_temp_free(m1);
+ tcg_temp_free(m2);
+ }
+ if (ld_offset) {
+ tcg_gen_mov_i32(cpu_R[RRR_S], vaddr);
+ tcg_gen_mov_i32(cpu_SR[MR + RRR_W], mem32);
+ }
+ tcg_temp_free(vaddr);
+ tcg_temp_free(mem32);
+ }
+ }
+ 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);
+ if (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*/
+ if (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*/
+ if (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(cpu_env, pc, s, imm);
+ tcg_temp_free(imm);
+ tcg_temp_free(s);
+ tcg_temp_free(pc);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+ }
+ 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);
+ if (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_helper_wsr_lend(cpu_env, tmp);
+ tcg_temp_free(tmp);
+
+ if (BRI8_R > 8) {
+ TCGLabel *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*/
+ if (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*/
+ if (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*/
+ if (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*/
+ if (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*/
+ if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
+#ifdef TARGET_WORDS_BIGENDIAN
+ TCGv_i32 bit = tcg_const_i32(0x80000000);
+#else
+ TCGv_i32 bit = tcg_const_i32(0x00000001);
+#endif
+ TCGv_i32 tmp = tcg_temp_new_i32();
+ tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f);
+#ifdef TARGET_WORDS_BIGENDIAN
+ tcg_gen_shr_i32(bit, bit, tmp);
+#else
+ tcg_gen_shl_i32(bit, bit, tmp);
+#endif
+ 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:
+ if (gen_window_check1(dc, RRI8_S)) {
+ TCGv_i32 tmp = tcg_temp_new_i32();
+ tcg_gen_andi_i32(tmp, cpu_R[RRI8_S],
+#ifdef TARGET_WORDS_BIGENDIAN
+ 0x80000000 >> (((RRI8_R & 1) << 4) | RRI8_T));
+#else
+ 0x00000001 << (((RRI8_R & 1) << 4) | RRI8_T));
+#endif
+ gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
+ tcg_temp_free(tmp);
+ }
+ break;
+
+ }
+ }
+ break;
+
+#define gen_narrow_load_store(type) do { \
+ if (gen_window_check2(dc, RRRN_S, RRRN_T)) { \
+ TCGv_i32 addr = tcg_temp_new_i32(); \
+ 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*/
+ if (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*/
+ if (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*/
+ if (!gen_window_check1(dc, RRRN_S)) {
+ break;
+ }
+ 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*/
+ if (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, cpu_env, tmp);
+ gen_jump(dc, tmp);
+ tcg_temp_free(tmp);
+ }
+ break;
+
+ case 2: /*BREAK.Nn*/
+ HAS_OPTION(XTENSA_OPTION_DEBUG);
+ if (dc->debug) {
+ gen_debug_exception(dc, DEBUGCAUSE_BN);
+ }
+ 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;
+ }
+
+ if (dc->is_jmp == DISAS_NEXT) {
+ gen_check_loop_end(dc, 0);
+ }
+ dc->pc = dc->next_pc;
+
+ return;
+
+invalid_opcode:
+ qemu_log("INVALID(pc = %08x)\n", dc->pc);
+ gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
+#undef HAS_OPTION
+}
+
+static inline unsigned xtensa_insn_len(CPUXtensaState *env, DisasContext *dc)
+{
+ uint8_t b0 = cpu_ldub_code(env, dc->pc);
+ return xtensa_op0_insn_len(OP0);
+}
+
+static void check_breakpoint(CPUXtensaState *env, DisasContext *dc)
+{
+ CPUState *cs = CPU(xtensa_env_get_cpu(env));
+ CPUBreakpoint *bp;
+
+ if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
+ QTAILQ_FOREACH(bp, &cs->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_ibreak_check(CPUXtensaState *env, DisasContext *dc)
+{
+ unsigned i;
+
+ for (i = 0; i < dc->config->nibreak; ++i) {
+ if ((env->sregs[IBREAKENABLE] & (1 << i)) &&
+ env->sregs[IBREAKA + i] == dc->pc) {
+ gen_debug_exception(dc, DEBUGCAUSE_IB);
+ break;
+ }
+ }
+}
+
+static inline
+void gen_intermediate_code_internal(XtensaCPU *cpu,
+ TranslationBlock *tb, bool search_pc)
+{
+ CPUState *cs = CPU(cpu);
+ CPUXtensaState *env = &cpu->env;
+ DisasContext dc;
+ int insn_count = 0;
+ int j, lj = -1;
+ 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 = cs->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;
+ dc.debug = tb->flags & XTENSA_TBFLAG_DEBUG;
+ dc.icount = tb->flags & XTENSA_TBFLAG_ICOUNT;
+ dc.cpenable = (tb->flags & XTENSA_TBFLAG_CPENABLE_MASK) >>
+ XTENSA_TBFLAG_CPENABLE_SHIFT;
+ dc.window = ((tb->flags & XTENSA_TBFLAG_WINDOW_MASK) >>
+ XTENSA_TBFLAG_WINDOW_SHIFT);
+
+ init_litbase(&dc);
+ init_sar_tracker(&dc);
+ if (dc.icount) {
+ dc.next_icount = tcg_temp_local_new_i32();
+ }
+
+ gen_tb_start(tb);
+
+ if (tb->flags & XTENSA_TBFLAG_EXCEPTION) {
+ tcg_gen_movi_i32(cpu_pc, dc.pc);
+ gen_exception(&dc, EXCP_DEBUG);
+ }
+
+ do {
+ check_breakpoint(env, &dc);
+
+ if (search_pc) {
+ j = tcg_op_buf_count();
+ if (lj < j) {
+ lj++;
+ while (lj < j) {
+ tcg_ctx.gen_opc_instr_start[lj++] = 0;
+ }
+ }
+ tcg_ctx.gen_opc_pc[lj] = dc.pc;
+ tcg_ctx.gen_opc_instr_start[lj] = 1;
+ tcg_ctx.gen_opc_icount[lj] = insn_count;
+ }
+
+ if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
+ tcg_gen_debug_insn_start(dc.pc);
+ }
+
+ ++dc.ccount_delta;
+
+ if (insn_count + 1 == max_insns && (tb->cflags & CF_LAST_IO)) {
+ gen_io_start();
+ }
+
+ if (dc.icount) {
+ TCGLabel *label = gen_new_label();
+
+ tcg_gen_addi_i32(dc.next_icount, cpu_SR[ICOUNT], 1);
+ tcg_gen_brcondi_i32(TCG_COND_NE, dc.next_icount, 0, label);
+ tcg_gen_mov_i32(dc.next_icount, cpu_SR[ICOUNT]);
+ if (dc.debug) {
+ gen_debug_exception(&dc, DEBUGCAUSE_IC);
+ }
+ gen_set_label(label);
+ }
+
+ if (dc.debug) {
+ gen_ibreak_check(env, &dc);
+ }
+
+ disas_xtensa_insn(env, &dc);
+ ++insn_count;
+ if (dc.icount) {
+ tcg_gen_mov_i32(cpu_SR[ICOUNT], dc.next_icount);
+ }
+ if (cs->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 &&
+ dc.pc + xtensa_insn_len(env, &dc) <= next_page_start &&
+ !tcg_op_buf_full());
+
+ reset_litbase(&dc);
+ reset_sar_tracker(&dc);
+ if (dc.icount) {
+ tcg_temp_free(dc.next_icount);
+ }
+
+ if (tb->cflags & CF_LAST_IO) {
+ gen_io_end();
+ }
+
+ if (dc.is_jmp == DISAS_NEXT) {
+ gen_jumpi(&dc, dc.pc, 0);
+ }
+ gen_tb_end(tb, insn_count);
+
+#ifdef DEBUG_DISAS
+ if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
+ qemu_log("----------------\n");
+ qemu_log("IN: %s\n", lookup_symbol(pc_start));
+ log_target_disas(cs, pc_start, dc.pc - pc_start, 0);
+ qemu_log("\n");
+ }
+#endif
+ if (search_pc) {
+ j = tcg_op_buf_count();
+ memset(tcg_ctx.gen_opc_instr_start + lj + 1, 0,
+ (j - lj) * sizeof(tcg_ctx.gen_opc_instr_start[0]));
+ } else {
+ tb->size = dc.pc - pc_start;
+ tb->icount = insn_count;
+ }
+}
+
+void gen_intermediate_code(CPUXtensaState *env, TranslationBlock *tb)
+{
+ gen_intermediate_code_internal(xtensa_env_get_cpu(env), tb, false);
+}
+
+void gen_intermediate_code_pc(CPUXtensaState *env, TranslationBlock *tb)
+{
+ gen_intermediate_code_internal(xtensa_env_get_cpu(env), tb, true);
+}
+
+void xtensa_cpu_dump_state(CPUState *cs, FILE *f,
+ fprintf_function cpu_fprintf, int flags)
+{
+ XtensaCPU *cpu = XTENSA_CPU(cs);
+ CPUXtensaState *env = &cpu->env;
+ int i, j;
+
+ cpu_fprintf(f, "PC=%08x\n\n", env->pc);
+
+ for (i = j = 0; i < 256; ++i) {
+ if (xtensa_option_bits_enabled(env->config, sregnames[i].opt_bits)) {
+ cpu_fprintf(f, "%12s=%08x%c", sregnames[i].name, env->sregs[i],
+ (j++ % 4) == 3 ? '\n' : ' ');
+ }
+ }
+
+ cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n");
+
+ for (i = j = 0; i < 256; ++i) {
+ if (xtensa_option_bits_enabled(env->config, uregnames[i].opt_bits)) {
+ cpu_fprintf(f, "%s=%08x%c", uregnames[i].name, 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' : ' ');
+ }
+
+ if (xtensa_option_enabled(env->config, XTENSA_OPTION_FP_COPROCESSOR)) {
+ cpu_fprintf(f, "\n");
+
+ for (i = 0; i < 16; ++i) {
+ cpu_fprintf(f, "F%02d=%08x (%+10.8e)%c", i,
+ float32_val(env->fregs[i].f32[FP_F32_LOW]),
+ *(float *)(env->fregs[i].f32 + FP_F32_LOW),
+ (i % 2) == 1 ? '\n' : ' ');
+ }
+ }
+}
+
+void restore_state_to_opc(CPUXtensaState *env, TranslationBlock *tb, int pc_pos)
+{
+ env->pc = tcg_ctx.gen_opc_pc[pc_pos];
+}
Code Review / kvmfornfv.git / blobdiff