| /* |
| * 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/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 used_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]), |
| 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_cond(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); |
| } |
| } |
| |
| static void gen_advance_ccount(DisasContext *dc) |
| { |
| gen_advance_ccount_cond(dc); |
| dc->ccount_delta = 0; |
| } |
| |
| 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(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 void gen_check_privilege(DisasContext *dc) |
| { |
| if (dc->cring) { |
| gen_exception_cause(dc, PRIVILEGED_CAUSE); |
| dc->is_jmp = DISAS_UPDATE; |
| } |
| } |
| |
| static void 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; |
| } |
| } |
| |
| 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) { |
| int 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) |
| { |
| int 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); |
| reset_used_window(dc); |
| } |
| |
| 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); |
| 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(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); |
| 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_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) { |
| 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(cpu_env, 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) { |
| int label = gen_new_label(); |
| TCGv_i32 ws = tcg_temp_new_i32(); |
| |
| dc->used_window = r1 / 4; |
| tcg_gen_deposit_i32(ws, cpu_SR[WINDOW_START], cpu_SR[WINDOW_START], |
| dc->config->nareg / 4, dc->config->nareg / 4); |
| tcg_gen_shr_i32(ws, ws, cpu_SR[WINDOW_BASE]); |
| tcg_gen_andi_i32(ws, ws, (2 << (r1 / 4)) - 2); |
| tcg_gen_brcondi_i32(TCG_COND_EQ, ws, 0, label); |
| { |
| TCGv_i32 pc = tcg_const_i32(dc->pc); |
| TCGv_i32 w = tcg_const_i32(r1 / 4); |
| |
| gen_advance_ccount_cond(dc); |
| gen_helper_window_check(cpu_env, pc, w); |
| |
| tcg_temp_free(w); |
| tcg_temp_free(pc); |
| } |
| gen_set_label(label); |
| tcg_temp_free(ws); |
| } |
| } |
| |
| 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 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 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; |
| |
| 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; |
| b2 = cpu_ldub_code(env, dc->pc + 2); |
| } |
| |
| 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, cpu_env, 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(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*/ |
| 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(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) { |
| 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) { |
| 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(cpu_env, tmp); |
| tcg_temp_free(tmp); |
| reset_used_window(dc); |
| } |
| break; |
| |
| case 14: /*NSAu*/ |
| HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA); |
| 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); |
| 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_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*/ |
| 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*/ |
| { |
| 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*/ |
| 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*/ |
| if (gen_check_sr(dc, RSR_SR, SR_X)) { |
| 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); |
| } |
| 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_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*/ |
| { |
| 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 (gen_check_sr(dc, RSR_SR, SR_R)) { |
| if (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)) { |
| if (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); |
| 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); |
| 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); |
| 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*/ |
| 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); |
| 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*/ |
| 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*/ |
| 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: |
| 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); |
| 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*/ |
| 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); |
| switch (OP2) { |
| case 0: /*ADD.Sf*/ |
| 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*/ |
| 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*/ |
| 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*/ |
| 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*/ |
| 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*/ |
| 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*/ |
| 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*/ |
| gen_check_cpenable(dc, 0); |
| tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_FR[RRR_S]); |
| break; |
| |
| case 1: /*ABS.Sf*/ |
| gen_check_cpenable(dc, 0); |
| gen_helper_abs_s(cpu_FR[RRR_R], cpu_FR[RRR_S]); |
| break; |
| |
| case 4: /*RFRf*/ |
| 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*/ |
| 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*/ |
| 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 { \ |
| TCGv_i32 bit = tcg_const_i32(1 << br); \ |
| \ |
| gen_check_cpenable(dc, 0); \ |
| 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*/ |
| 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); |
| 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*/ |
| 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; |
| |
| #define gen_dcache_hit_test(w, shift) do { \ |
| TCGv_i32 addr = tcg_temp_new_i32(); \ |
| TCGv_i32 res = tcg_temp_new_i32(); \ |
| gen_window_check1(dc, RRI##w##_S); \ |
| 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*/ |
| gen_check_privilege(dc); |
| gen_dcache_hit_test8(); |
| break; |
| |
| case 7: /*DIIc*/ |
| 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); |
| gen_check_privilege(dc); |
| gen_dcache_hit_test4(); |
| break; |
| |
| case 2: /*DHUl*/ |
| HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); |
| gen_check_privilege(dc); |
| gen_dcache_hit_test4(); |
| break; |
| |
| case 3: /*DIUl*/ |
| HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); |
| gen_check_privilege(dc); |
| gen_window_check1(dc, RRI4_S); |
| break; |
| |
| case 4: /*DIWBc*/ |
| HAS_OPTION(XTENSA_OPTION_DCACHE); |
| gen_check_privilege(dc); |
| gen_window_check1(dc, RRI4_S); |
| break; |
| |
| case 5: /*DIWBIc*/ |
| HAS_OPTION(XTENSA_OPTION_DCACHE); |
| 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 { \ |
| TCGv_i32 addr = tcg_temp_new_i32(); \ |
| gen_window_check1(dc, RRI##w##_S); \ |
| 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); |
| gen_check_privilege(dc); |
| gen_icache_hit_test4(); |
| break; |
| |
| case 2: /*IHUl*/ |
| HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); |
| gen_check_privilege(dc); |
| gen_icache_hit_test4(); |
| break; |
| |
| case 3: /*IIUl*/ |
| HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); |
| 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); |
| 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*/ |
| 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_CONDITIONAL_STORE); |
| 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(); |
| 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); |
| 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); |
| } |
| if (!is_m2_sr) { |
| gen_window_check1(dc, RRR_T); |
| } |
| } |
| |
| { |
| TCGv_i32 vaddr = tcg_temp_new_i32(); |
| TCGv_i32 mem32 = tcg_temp_new_i32(); |
| |
| if (ld_offset) { |
| gen_window_check1(dc, RRR_S); |
| 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); |
| 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(cpu_env, 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_helper_wsr_lend(cpu_env, 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); |
| { |
| #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: |
| 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 { \ |
| 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 | ( |