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/*
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* Xtensa ISA:
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* http://www.tensilica.com/products/literature-docs/documentation/xtensa-isa-databook.htm
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*
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* Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the Open Source and Linux Lab nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h> |
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|
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#include "cpu.h" |
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#include "exec-all.h" |
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#include "disas.h" |
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#include "tcg-op.h" |
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#include "qemu-log.h" |
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#include "sysemu.h" |
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|
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#include "helpers.h" |
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#define GEN_HELPER 1 |
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#include "helpers.h" |
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|
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typedef struct DisasContext { |
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const XtensaConfig *config;
|
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TranslationBlock *tb; |
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uint32_t pc; |
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uint32_t next_pc; |
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int cring;
|
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int ring;
|
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uint32_t lbeg; |
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uint32_t lend; |
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TCGv_i32 litbase; |
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int is_jmp;
|
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int singlestep_enabled;
|
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|
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bool sar_5bit;
|
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bool sar_m32_5bit;
|
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bool sar_m32_allocated;
|
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TCGv_i32 sar_m32; |
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|
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uint32_t ccount_delta; |
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unsigned used_window;
|
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|
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bool debug;
|
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bool icount;
|
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TCGv_i32 next_icount; |
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} DisasContext; |
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|
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static TCGv_ptr cpu_env;
|
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static TCGv_i32 cpu_pc;
|
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static TCGv_i32 cpu_R[16]; |
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static TCGv_i32 cpu_SR[256]; |
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static TCGv_i32 cpu_UR[256]; |
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|
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#include "gen-icount.h" |
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|
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static const char * const sregnames[256] = { |
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[LBEG] = "LBEG",
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[LEND] = "LEND",
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[LCOUNT] = "LCOUNT",
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[SAR] = "SAR",
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[BR] = "BR",
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[LITBASE] = "LITBASE",
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[SCOMPARE1] = "SCOMPARE1",
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[ACCLO] = "ACCLO",
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[ACCHI] = "ACCHI",
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[MR] = "MR0",
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[MR + 1] = "MR1", |
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[MR + 2] = "MR2", |
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[MR + 3] = "MR3", |
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[WINDOW_BASE] = "WINDOW_BASE",
|
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[WINDOW_START] = "WINDOW_START",
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[PTEVADDR] = "PTEVADDR",
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[RASID] = "RASID",
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[ITLBCFG] = "ITLBCFG",
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[DTLBCFG] = "DTLBCFG",
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[IBREAKENABLE] = "IBREAKENABLE",
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[IBREAKA] = "IBREAKA0",
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[IBREAKA + 1] = "IBREAKA1", |
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[DBREAKA] = "DBREAKA0",
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[DBREAKA + 1] = "DBREAKA1", |
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[DBREAKC] = "DBREAKC0",
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[DBREAKC + 1] = "DBREAKC1", |
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[EPC1] = "EPC1",
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[EPC1 + 1] = "EPC2", |
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[EPC1 + 2] = "EPC3", |
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[EPC1 + 3] = "EPC4", |
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[EPC1 + 4] = "EPC5", |
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[EPC1 + 5] = "EPC6", |
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[EPC1 + 6] = "EPC7", |
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[DEPC] = "DEPC",
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[EPS2] = "EPS2",
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[EPS2 + 1] = "EPS3", |
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[EPS2 + 2] = "EPS4", |
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[EPS2 + 3] = "EPS5", |
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[EPS2 + 4] = "EPS6", |
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[EPS2 + 5] = "EPS7", |
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[EXCSAVE1] = "EXCSAVE1",
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[EXCSAVE1 + 1] = "EXCSAVE2", |
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[EXCSAVE1 + 2] = "EXCSAVE3", |
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[EXCSAVE1 + 3] = "EXCSAVE4", |
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[EXCSAVE1 + 4] = "EXCSAVE5", |
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[EXCSAVE1 + 5] = "EXCSAVE6", |
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[EXCSAVE1 + 6] = "EXCSAVE7", |
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[CPENABLE] = "CPENABLE",
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[INTSET] = "INTSET",
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[INTCLEAR] = "INTCLEAR",
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[INTENABLE] = "INTENABLE",
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[PS] = "PS",
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[VECBASE] = "VECBASE",
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[EXCCAUSE] = "EXCCAUSE",
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[DEBUGCAUSE] = "DEBUGCAUSE",
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[CCOUNT] = "CCOUNT",
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[PRID] = "PRID",
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[ICOUNT] = "ICOUNT",
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[ICOUNTLEVEL] = "ICOUNTLEVEL",
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[EXCVADDR] = "EXCVADDR",
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[CCOMPARE] = "CCOMPARE0",
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[CCOMPARE + 1] = "CCOMPARE1", |
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[CCOMPARE + 2] = "CCOMPARE2", |
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}; |
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|
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static const char * const uregnames[256] = { |
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[THREADPTR] = "THREADPTR",
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[FCR] = "FCR",
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[FSR] = "FSR",
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}; |
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|
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void xtensa_translate_init(void) |
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{
|
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static const char * const regnames[] = { |
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"ar0", "ar1", "ar2", "ar3", |
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"ar4", "ar5", "ar6", "ar7", |
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"ar8", "ar9", "ar10", "ar11", |
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"ar12", "ar13", "ar14", "ar15", |
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}; |
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int i;
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|
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cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
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cpu_pc = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUXtensaState, pc), "pc");
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|
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for (i = 0; i < 16; i++) { |
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cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUXtensaState, regs[i]), |
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regnames[i]); |
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} |
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for (i = 0; i < 256; ++i) { |
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if (sregnames[i]) {
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cpu_SR[i] = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUXtensaState, sregs[i]), |
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sregnames[i]); |
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} |
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} |
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|
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for (i = 0; i < 256; ++i) { |
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if (uregnames[i]) {
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cpu_UR[i] = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUXtensaState, uregs[i]), |
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uregnames[i]); |
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} |
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} |
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#define GEN_HELPER 2 |
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#include "helpers.h" |
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} |
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static inline bool option_bits_enabled(DisasContext *dc, uint64_t opt) |
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{
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return xtensa_option_bits_enabled(dc->config, opt);
|
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} |
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|
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static inline bool option_enabled(DisasContext *dc, int opt) |
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{
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return xtensa_option_enabled(dc->config, opt);
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} |
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static void init_litbase(DisasContext *dc) |
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{
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if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
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dc->litbase = tcg_temp_local_new_i32(); |
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tcg_gen_andi_i32(dc->litbase, cpu_SR[LITBASE], 0xfffff000);
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} |
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} |
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|
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static void reset_litbase(DisasContext *dc) |
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{
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if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
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tcg_temp_free(dc->litbase); |
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} |
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} |
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|
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static void init_sar_tracker(DisasContext *dc) |
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{
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dc->sar_5bit = false;
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dc->sar_m32_5bit = false;
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dc->sar_m32_allocated = false;
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} |
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|
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static void reset_sar_tracker(DisasContext *dc) |
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{
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if (dc->sar_m32_allocated) {
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tcg_temp_free(dc->sar_m32); |
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} |
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} |
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|
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static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa) |
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{
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tcg_gen_andi_i32(cpu_SR[SAR], sa, 0x1f);
|
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if (dc->sar_m32_5bit) {
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tcg_gen_discard_i32(dc->sar_m32); |
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} |
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dc->sar_5bit = true;
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dc->sar_m32_5bit = false;
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} |
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|
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static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa) |
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{
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TCGv_i32 tmp = tcg_const_i32(32);
|
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if (!dc->sar_m32_allocated) {
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dc->sar_m32 = tcg_temp_local_new_i32(); |
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dc->sar_m32_allocated = true;
|
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} |
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tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f);
|
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tcg_gen_sub_i32(cpu_SR[SAR], tmp, dc->sar_m32); |
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dc->sar_5bit = false;
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dc->sar_m32_5bit = true;
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tcg_temp_free(tmp); |
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} |
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|
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static void gen_advance_ccount(DisasContext *dc) |
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{
|
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if (dc->ccount_delta > 0) { |
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TCGv_i32 tmp = tcg_const_i32(dc->ccount_delta); |
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dc->ccount_delta = 0;
|
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gen_helper_advance_ccount(tmp); |
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tcg_temp_free(tmp); |
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} |
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} |
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|
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static void reset_used_window(DisasContext *dc) |
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{
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dc->used_window = 0;
|
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} |
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|
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static void gen_exception(DisasContext *dc, int excp) |
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{
|
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TCGv_i32 tmp = tcg_const_i32(excp); |
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gen_advance_ccount(dc); |
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gen_helper_exception(tmp); |
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tcg_temp_free(tmp); |
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} |
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|
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static void gen_exception_cause(DisasContext *dc, uint32_t cause) |
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{
|
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TCGv_i32 tpc = tcg_const_i32(dc->pc); |
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TCGv_i32 tcause = tcg_const_i32(cause); |
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gen_advance_ccount(dc); |
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gen_helper_exception_cause(tpc, tcause); |
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tcg_temp_free(tpc); |
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tcg_temp_free(tcause); |
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if (cause == ILLEGAL_INSTRUCTION_CAUSE ||
|
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cause == SYSCALL_CAUSE) {
|
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dc->is_jmp = DISAS_UPDATE; |
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} |
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} |
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|
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static void gen_exception_cause_vaddr(DisasContext *dc, uint32_t cause, |
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TCGv_i32 vaddr) |
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{
|
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TCGv_i32 tpc = tcg_const_i32(dc->pc); |
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TCGv_i32 tcause = tcg_const_i32(cause); |
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gen_advance_ccount(dc); |
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gen_helper_exception_cause_vaddr(tpc, tcause, vaddr); |
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tcg_temp_free(tpc); |
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tcg_temp_free(tcause); |
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} |
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|
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static void gen_debug_exception(DisasContext *dc, uint32_t cause) |
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{
|
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TCGv_i32 tpc = tcg_const_i32(dc->pc); |
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TCGv_i32 tcause = tcg_const_i32(cause); |
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gen_advance_ccount(dc); |
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gen_helper_debug_exception(tpc, tcause); |
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tcg_temp_free(tpc); |
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tcg_temp_free(tcause); |
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if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) {
|
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dc->is_jmp = DISAS_UPDATE; |
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} |
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} |
| 312 |
|
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static void gen_check_privilege(DisasContext *dc) |
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{
|
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if (dc->cring) {
|
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gen_exception_cause(dc, PRIVILEGED_CAUSE); |
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dc->is_jmp = DISAS_UPDATE; |
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} |
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} |
| 320 |
|
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static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot) |
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{
|
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tcg_gen_mov_i32(cpu_pc, dest); |
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gen_advance_ccount(dc); |
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if (dc->icount) {
|
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tcg_gen_mov_i32(cpu_SR[ICOUNT], dc->next_icount); |
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} |
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if (dc->singlestep_enabled) {
|
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gen_exception(dc, EXCP_DEBUG); |
| 330 |
} else {
|
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if (slot >= 0) { |
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tcg_gen_goto_tb(slot); |
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tcg_gen_exit_tb((tcg_target_long)dc->tb + slot); |
| 334 |
} else {
|
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tcg_gen_exit_tb(0);
|
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} |
| 337 |
} |
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dc->is_jmp = DISAS_UPDATE; |
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} |
| 340 |
|
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static void gen_jump(DisasContext *dc, TCGv dest) |
| 342 |
{
|
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gen_jump_slot(dc, dest, -1);
|
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} |
| 345 |
|
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static void gen_jumpi(DisasContext *dc, uint32_t dest, int slot) |
| 347 |
{
|
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TCGv_i32 tmp = tcg_const_i32(dest); |
| 349 |
if (((dc->pc ^ dest) & TARGET_PAGE_MASK) != 0) { |
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slot = -1;
|
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} |
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gen_jump_slot(dc, tmp, slot); |
| 353 |
tcg_temp_free(tmp); |
| 354 |
} |
| 355 |
|
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static void gen_callw_slot(DisasContext *dc, int callinc, TCGv_i32 dest, |
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int slot)
|
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{
|
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TCGv_i32 tcallinc = tcg_const_i32(callinc); |
| 360 |
|
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tcg_gen_deposit_i32(cpu_SR[PS], cpu_SR[PS], |
| 362 |
tcallinc, PS_CALLINC_SHIFT, PS_CALLINC_LEN); |
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tcg_temp_free(tcallinc); |
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tcg_gen_movi_i32(cpu_R[callinc << 2],
|
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(callinc << 30) | (dc->next_pc & 0x3fffffff)); |
| 366 |
gen_jump_slot(dc, dest, slot); |
| 367 |
} |
| 368 |
|
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static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest) |
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{
|
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gen_callw_slot(dc, callinc, dest, -1);
|
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} |
| 373 |
|
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static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot) |
| 375 |
{
|
| 376 |
TCGv_i32 tmp = tcg_const_i32(dest); |
| 377 |
if (((dc->pc ^ dest) & TARGET_PAGE_MASK) != 0) { |
| 378 |
slot = -1;
|
| 379 |
} |
| 380 |
gen_callw_slot(dc, callinc, tmp, slot); |
| 381 |
tcg_temp_free(tmp); |
| 382 |
} |
| 383 |
|
| 384 |
static bool gen_check_loop_end(DisasContext *dc, int slot) |
| 385 |
{
|
| 386 |
if (option_enabled(dc, XTENSA_OPTION_LOOP) &&
|
| 387 |
!(dc->tb->flags & XTENSA_TBFLAG_EXCM) && |
| 388 |
dc->next_pc == dc->lend) {
|
| 389 |
int label = gen_new_label();
|
| 390 |
|
| 391 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label);
|
| 392 |
tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1);
|
| 393 |
gen_jumpi(dc, dc->lbeg, slot); |
| 394 |
gen_set_label(label); |
| 395 |
gen_jumpi(dc, dc->next_pc, -1);
|
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return true; |
| 397 |
} |
| 398 |
return false; |
| 399 |
} |
| 400 |
|
| 401 |
static void gen_jumpi_check_loop_end(DisasContext *dc, int slot) |
| 402 |
{
|
| 403 |
if (!gen_check_loop_end(dc, slot)) {
|
| 404 |
gen_jumpi(dc, dc->next_pc, slot); |
| 405 |
} |
| 406 |
} |
| 407 |
|
| 408 |
static void gen_brcond(DisasContext *dc, TCGCond cond, |
| 409 |
TCGv_i32 t0, TCGv_i32 t1, uint32_t offset) |
| 410 |
{
|
| 411 |
int label = gen_new_label();
|
| 412 |
|
| 413 |
tcg_gen_brcond_i32(cond, t0, t1, label); |
| 414 |
gen_jumpi_check_loop_end(dc, 0);
|
| 415 |
gen_set_label(label); |
| 416 |
gen_jumpi(dc, dc->pc + offset, 1);
|
| 417 |
} |
| 418 |
|
| 419 |
static void gen_brcondi(DisasContext *dc, TCGCond cond, |
| 420 |
TCGv_i32 t0, uint32_t t1, uint32_t offset) |
| 421 |
{
|
| 422 |
TCGv_i32 tmp = tcg_const_i32(t1); |
| 423 |
gen_brcond(dc, cond, t0, tmp, offset); |
| 424 |
tcg_temp_free(tmp); |
| 425 |
} |
| 426 |
|
| 427 |
static void gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr) |
| 428 |
{
|
| 429 |
gen_advance_ccount(dc); |
| 430 |
tcg_gen_mov_i32(d, cpu_SR[sr]); |
| 431 |
} |
| 432 |
|
| 433 |
static void gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr) |
| 434 |
{
|
| 435 |
tcg_gen_shri_i32(d, cpu_SR[EXCVADDR], 10);
|
| 436 |
tcg_gen_or_i32(d, d, cpu_SR[sr]); |
| 437 |
tcg_gen_andi_i32(d, d, 0xfffffffc);
|
| 438 |
} |
| 439 |
|
| 440 |
static void gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr) |
| 441 |
{
|
| 442 |
static void (* const rsr_handler[256])(DisasContext *dc, |
| 443 |
TCGv_i32 d, uint32_t sr) = {
|
| 444 |
[CCOUNT] = gen_rsr_ccount, |
| 445 |
[PTEVADDR] = gen_rsr_ptevaddr, |
| 446 |
}; |
| 447 |
|
| 448 |
if (sregnames[sr]) {
|
| 449 |
if (rsr_handler[sr]) {
|
| 450 |
rsr_handler[sr](dc, d, sr); |
| 451 |
} else {
|
| 452 |
tcg_gen_mov_i32(d, cpu_SR[sr]); |
| 453 |
} |
| 454 |
} else {
|
| 455 |
qemu_log("RSR %d not implemented, ", sr);
|
| 456 |
} |
| 457 |
} |
| 458 |
|
| 459 |
static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s) |
| 460 |
{
|
| 461 |
gen_helper_wsr_lbeg(s); |
| 462 |
} |
| 463 |
|
| 464 |
static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s) |
| 465 |
{
|
| 466 |
gen_helper_wsr_lend(s); |
| 467 |
} |
| 468 |
|
| 469 |
static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s) |
| 470 |
{
|
| 471 |
tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f);
|
| 472 |
if (dc->sar_m32_5bit) {
|
| 473 |
tcg_gen_discard_i32(dc->sar_m32); |
| 474 |
} |
| 475 |
dc->sar_5bit = false;
|
| 476 |
dc->sar_m32_5bit = false;
|
| 477 |
} |
| 478 |
|
| 479 |
static void gen_wsr_br(DisasContext *dc, uint32_t sr, TCGv_i32 s) |
| 480 |
{
|
| 481 |
tcg_gen_andi_i32(cpu_SR[sr], s, 0xffff);
|
| 482 |
} |
| 483 |
|
| 484 |
static void gen_wsr_litbase(DisasContext *dc, uint32_t sr, TCGv_i32 s) |
| 485 |
{
|
| 486 |
tcg_gen_andi_i32(cpu_SR[sr], s, 0xfffff001);
|
| 487 |
/* This can change tb->flags, so exit tb */
|
| 488 |
gen_jumpi_check_loop_end(dc, -1);
|
| 489 |
} |
| 490 |
|
| 491 |
static void gen_wsr_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s) |
| 492 |
{
|
| 493 |
tcg_gen_ext8s_i32(cpu_SR[sr], s); |
| 494 |
} |
| 495 |
|
| 496 |
static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 497 |
{
|
| 498 |
gen_helper_wsr_windowbase(v); |
| 499 |
reset_used_window(dc); |
| 500 |
} |
| 501 |
|
| 502 |
static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 503 |
{
|
| 504 |
tcg_gen_andi_i32(cpu_SR[sr], v, (1 << dc->config->nareg / 4) - 1); |
| 505 |
reset_used_window(dc); |
| 506 |
} |
| 507 |
|
| 508 |
static void gen_wsr_ptevaddr(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 509 |
{
|
| 510 |
tcg_gen_andi_i32(cpu_SR[sr], v, 0xffc00000);
|
| 511 |
} |
| 512 |
|
| 513 |
static void gen_wsr_rasid(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 514 |
{
|
| 515 |
gen_helper_wsr_rasid(v); |
| 516 |
/* This can change tb->flags, so exit tb */
|
| 517 |
gen_jumpi_check_loop_end(dc, -1);
|
| 518 |
} |
| 519 |
|
| 520 |
static void gen_wsr_tlbcfg(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 521 |
{
|
| 522 |
tcg_gen_andi_i32(cpu_SR[sr], v, 0x01130000);
|
| 523 |
} |
| 524 |
|
| 525 |
static void gen_wsr_ibreakenable(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 526 |
{
|
| 527 |
gen_helper_wsr_ibreakenable(v); |
| 528 |
gen_jumpi_check_loop_end(dc, 0);
|
| 529 |
} |
| 530 |
|
| 531 |
static void gen_wsr_ibreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 532 |
{
|
| 533 |
unsigned id = sr - IBREAKA;
|
| 534 |
|
| 535 |
if (id < dc->config->nibreak) {
|
| 536 |
TCGv_i32 tmp = tcg_const_i32(id); |
| 537 |
gen_helper_wsr_ibreaka(tmp, v); |
| 538 |
tcg_temp_free(tmp); |
| 539 |
gen_jumpi_check_loop_end(dc, 0);
|
| 540 |
} |
| 541 |
} |
| 542 |
|
| 543 |
static void gen_wsr_dbreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 544 |
{
|
| 545 |
unsigned id = sr - DBREAKA;
|
| 546 |
|
| 547 |
if (id < dc->config->ndbreak) {
|
| 548 |
TCGv_i32 tmp = tcg_const_i32(id); |
| 549 |
gen_helper_wsr_dbreaka(tmp, v); |
| 550 |
tcg_temp_free(tmp); |
| 551 |
} |
| 552 |
} |
| 553 |
|
| 554 |
static void gen_wsr_dbreakc(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 555 |
{
|
| 556 |
unsigned id = sr - DBREAKC;
|
| 557 |
|
| 558 |
if (id < dc->config->ndbreak) {
|
| 559 |
TCGv_i32 tmp = tcg_const_i32(id); |
| 560 |
gen_helper_wsr_dbreakc(tmp, v); |
| 561 |
tcg_temp_free(tmp); |
| 562 |
} |
| 563 |
} |
| 564 |
|
| 565 |
static void gen_wsr_intset(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 566 |
{
|
| 567 |
tcg_gen_andi_i32(cpu_SR[sr], v, |
| 568 |
dc->config->inttype_mask[INTTYPE_SOFTWARE]); |
| 569 |
gen_helper_check_interrupts(cpu_env); |
| 570 |
gen_jumpi_check_loop_end(dc, 0);
|
| 571 |
} |
| 572 |
|
| 573 |
static void gen_wsr_intclear(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 574 |
{
|
| 575 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 576 |
|
| 577 |
tcg_gen_andi_i32(tmp, v, |
| 578 |
dc->config->inttype_mask[INTTYPE_EDGE] | |
| 579 |
dc->config->inttype_mask[INTTYPE_NMI] | |
| 580 |
dc->config->inttype_mask[INTTYPE_SOFTWARE]); |
| 581 |
tcg_gen_andc_i32(cpu_SR[INTSET], cpu_SR[INTSET], tmp); |
| 582 |
tcg_temp_free(tmp); |
| 583 |
gen_helper_check_interrupts(cpu_env); |
| 584 |
} |
| 585 |
|
| 586 |
static void gen_wsr_intenable(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 587 |
{
|
| 588 |
tcg_gen_mov_i32(cpu_SR[sr], v); |
| 589 |
gen_helper_check_interrupts(cpu_env); |
| 590 |
gen_jumpi_check_loop_end(dc, 0);
|
| 591 |
} |
| 592 |
|
| 593 |
static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 594 |
{
|
| 595 |
uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB | |
| 596 |
PS_UM | PS_EXCM | PS_INTLEVEL; |
| 597 |
|
| 598 |
if (option_enabled(dc, XTENSA_OPTION_MMU)) {
|
| 599 |
mask |= PS_RING; |
| 600 |
} |
| 601 |
tcg_gen_andi_i32(cpu_SR[sr], v, mask); |
| 602 |
reset_used_window(dc); |
| 603 |
gen_helper_check_interrupts(cpu_env); |
| 604 |
/* This can change mmu index and tb->flags, so exit tb */
|
| 605 |
gen_jumpi_check_loop_end(dc, -1);
|
| 606 |
} |
| 607 |
|
| 608 |
static void gen_wsr_debugcause(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 609 |
{
|
| 610 |
} |
| 611 |
|
| 612 |
static void gen_wsr_prid(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 613 |
{
|
| 614 |
} |
| 615 |
|
| 616 |
static void gen_wsr_icount(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 617 |
{
|
| 618 |
if (dc->icount) {
|
| 619 |
tcg_gen_mov_i32(dc->next_icount, v); |
| 620 |
} else {
|
| 621 |
tcg_gen_mov_i32(cpu_SR[sr], v); |
| 622 |
} |
| 623 |
} |
| 624 |
|
| 625 |
static void gen_wsr_icountlevel(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 626 |
{
|
| 627 |
tcg_gen_andi_i32(cpu_SR[sr], v, 0xf);
|
| 628 |
/* This can change tb->flags, so exit tb */
|
| 629 |
gen_jumpi_check_loop_end(dc, -1);
|
| 630 |
} |
| 631 |
|
| 632 |
static void gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v) |
| 633 |
{
|
| 634 |
uint32_t id = sr - CCOMPARE; |
| 635 |
if (id < dc->config->nccompare) {
|
| 636 |
uint32_t int_bit = 1 << dc->config->timerint[id];
|
| 637 |
gen_advance_ccount(dc); |
| 638 |
tcg_gen_mov_i32(cpu_SR[sr], v); |
| 639 |
tcg_gen_andi_i32(cpu_SR[INTSET], cpu_SR[INTSET], ~int_bit); |
| 640 |
gen_helper_check_interrupts(cpu_env); |
| 641 |
} |
| 642 |
} |
| 643 |
|
| 644 |
static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s) |
| 645 |
{
|
| 646 |
static void (* const wsr_handler[256])(DisasContext *dc, |
| 647 |
uint32_t sr, TCGv_i32 v) = {
|
| 648 |
[LBEG] = gen_wsr_lbeg, |
| 649 |
[LEND] = gen_wsr_lend, |
| 650 |
[SAR] = gen_wsr_sar, |
| 651 |
[BR] = gen_wsr_br, |
| 652 |
[LITBASE] = gen_wsr_litbase, |
| 653 |
[ACCHI] = gen_wsr_acchi, |
| 654 |
[WINDOW_BASE] = gen_wsr_windowbase, |
| 655 |
[WINDOW_START] = gen_wsr_windowstart, |
| 656 |
[PTEVADDR] = gen_wsr_ptevaddr, |
| 657 |
[RASID] = gen_wsr_rasid, |
| 658 |
[ITLBCFG] = gen_wsr_tlbcfg, |
| 659 |
[DTLBCFG] = gen_wsr_tlbcfg, |
| 660 |
[IBREAKENABLE] = gen_wsr_ibreakenable, |
| 661 |
[IBREAKA] = gen_wsr_ibreaka, |
| 662 |
[IBREAKA + 1] = gen_wsr_ibreaka,
|
| 663 |
[DBREAKA] = gen_wsr_dbreaka, |
| 664 |
[DBREAKA + 1] = gen_wsr_dbreaka,
|
| 665 |
[DBREAKC] = gen_wsr_dbreakc, |
| 666 |
[DBREAKC + 1] = gen_wsr_dbreakc,
|
| 667 |
[INTSET] = gen_wsr_intset, |
| 668 |
[INTCLEAR] = gen_wsr_intclear, |
| 669 |
[INTENABLE] = gen_wsr_intenable, |
| 670 |
[PS] = gen_wsr_ps, |
| 671 |
[DEBUGCAUSE] = gen_wsr_debugcause, |
| 672 |
[PRID] = gen_wsr_prid, |
| 673 |
[ICOUNT] = gen_wsr_icount, |
| 674 |
[ICOUNTLEVEL] = gen_wsr_icountlevel, |
| 675 |
[CCOMPARE] = gen_wsr_ccompare, |
| 676 |
[CCOMPARE + 1] = gen_wsr_ccompare,
|
| 677 |
[CCOMPARE + 2] = gen_wsr_ccompare,
|
| 678 |
}; |
| 679 |
|
| 680 |
if (sregnames[sr]) {
|
| 681 |
if (wsr_handler[sr]) {
|
| 682 |
wsr_handler[sr](dc, sr, s); |
| 683 |
} else {
|
| 684 |
tcg_gen_mov_i32(cpu_SR[sr], s); |
| 685 |
} |
| 686 |
} else {
|
| 687 |
qemu_log("WSR %d not implemented, ", sr);
|
| 688 |
} |
| 689 |
} |
| 690 |
|
| 691 |
static void gen_load_store_alignment(DisasContext *dc, int shift, |
| 692 |
TCGv_i32 addr, bool no_hw_alignment)
|
| 693 |
{
|
| 694 |
if (!option_enabled(dc, XTENSA_OPTION_UNALIGNED_EXCEPTION)) {
|
| 695 |
tcg_gen_andi_i32(addr, addr, ~0 << shift);
|
| 696 |
} else if (option_enabled(dc, XTENSA_OPTION_HW_ALIGNMENT) && |
| 697 |
no_hw_alignment) {
|
| 698 |
int label = gen_new_label();
|
| 699 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 700 |
tcg_gen_andi_i32(tmp, addr, ~(~0 << shift));
|
| 701 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
| 702 |
gen_exception_cause_vaddr(dc, LOAD_STORE_ALIGNMENT_CAUSE, addr); |
| 703 |
gen_set_label(label); |
| 704 |
tcg_temp_free(tmp); |
| 705 |
} |
| 706 |
} |
| 707 |
|
| 708 |
static void gen_waiti(DisasContext *dc, uint32_t imm4) |
| 709 |
{
|
| 710 |
TCGv_i32 pc = tcg_const_i32(dc->next_pc); |
| 711 |
TCGv_i32 intlevel = tcg_const_i32(imm4); |
| 712 |
gen_advance_ccount(dc); |
| 713 |
gen_helper_waiti(pc, intlevel); |
| 714 |
tcg_temp_free(pc); |
| 715 |
tcg_temp_free(intlevel); |
| 716 |
} |
| 717 |
|
| 718 |
static void gen_window_check1(DisasContext *dc, unsigned r1) |
| 719 |
{
|
| 720 |
if (dc->tb->flags & XTENSA_TBFLAG_EXCM) {
|
| 721 |
return;
|
| 722 |
} |
| 723 |
if (option_enabled(dc, XTENSA_OPTION_WINDOWED_REGISTER) &&
|
| 724 |
r1 / 4 > dc->used_window) {
|
| 725 |
TCGv_i32 pc = tcg_const_i32(dc->pc); |
| 726 |
TCGv_i32 w = tcg_const_i32(r1 / 4);
|
| 727 |
|
| 728 |
dc->used_window = r1 / 4;
|
| 729 |
gen_advance_ccount(dc); |
| 730 |
gen_helper_window_check(pc, w); |
| 731 |
|
| 732 |
tcg_temp_free(w); |
| 733 |
tcg_temp_free(pc); |
| 734 |
} |
| 735 |
} |
| 736 |
|
| 737 |
static void gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2) |
| 738 |
{
|
| 739 |
gen_window_check1(dc, r1 > r2 ? r1 : r2); |
| 740 |
} |
| 741 |
|
| 742 |
static void gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2, |
| 743 |
unsigned r3)
|
| 744 |
{
|
| 745 |
gen_window_check2(dc, r1, r2 > r3 ? r2 : r3); |
| 746 |
} |
| 747 |
|
| 748 |
static TCGv_i32 gen_mac16_m(TCGv_i32 v, bool hi, bool is_unsigned) |
| 749 |
{
|
| 750 |
TCGv_i32 m = tcg_temp_new_i32(); |
| 751 |
|
| 752 |
if (hi) {
|
| 753 |
(is_unsigned ? tcg_gen_shri_i32 : tcg_gen_sari_i32)(m, v, 16);
|
| 754 |
} else {
|
| 755 |
(is_unsigned ? tcg_gen_ext16u_i32 : tcg_gen_ext16s_i32)(m, v); |
| 756 |
} |
| 757 |
return m;
|
| 758 |
} |
| 759 |
|
| 760 |
static void disas_xtensa_insn(DisasContext *dc) |
| 761 |
{
|
| 762 |
#define HAS_OPTION_BITS(opt) do { \ |
| 763 |
if (!option_bits_enabled(dc, opt)) { \
|
| 764 |
qemu_log("Option is not enabled %s:%d\n", \
|
| 765 |
__FILE__, __LINE__); \ |
| 766 |
goto invalid_opcode; \
|
| 767 |
} \ |
| 768 |
} while (0) |
| 769 |
|
| 770 |
#define HAS_OPTION(opt) HAS_OPTION_BITS(XTENSA_OPTION_BIT(opt))
|
| 771 |
|
| 772 |
#define TBD() qemu_log("TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__) |
| 773 |
#define RESERVED() do { \ |
| 774 |
qemu_log("RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \
|
| 775 |
dc->pc, b0, b1, b2, __FILE__, __LINE__); \ |
| 776 |
goto invalid_opcode; \
|
| 777 |
} while (0) |
| 778 |
|
| 779 |
|
| 780 |
#ifdef TARGET_WORDS_BIGENDIAN
|
| 781 |
#define OP0 (((b0) & 0xf0) >> 4) |
| 782 |
#define OP1 (((b2) & 0xf0) >> 4) |
| 783 |
#define OP2 ((b2) & 0xf) |
| 784 |
#define RRR_R ((b1) & 0xf) |
| 785 |
#define RRR_S (((b1) & 0xf0) >> 4) |
| 786 |
#define RRR_T ((b0) & 0xf) |
| 787 |
#else
|
| 788 |
#define OP0 (((b0) & 0xf)) |
| 789 |
#define OP1 (((b2) & 0xf)) |
| 790 |
#define OP2 (((b2) & 0xf0) >> 4) |
| 791 |
#define RRR_R (((b1) & 0xf0) >> 4) |
| 792 |
#define RRR_S (((b1) & 0xf)) |
| 793 |
#define RRR_T (((b0) & 0xf0) >> 4) |
| 794 |
#endif
|
| 795 |
#define RRR_X ((RRR_R & 0x4) >> 2) |
| 796 |
#define RRR_Y ((RRR_T & 0x4) >> 2) |
| 797 |
#define RRR_W (RRR_R & 0x3) |
| 798 |
|
| 799 |
#define RRRN_R RRR_R
|
| 800 |
#define RRRN_S RRR_S
|
| 801 |
#define RRRN_T RRR_T
|
| 802 |
|
| 803 |
#define RRI8_R RRR_R
|
| 804 |
#define RRI8_S RRR_S
|
| 805 |
#define RRI8_T RRR_T
|
| 806 |
#define RRI8_IMM8 (b2)
|
| 807 |
#define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8) |
| 808 |
|
| 809 |
#ifdef TARGET_WORDS_BIGENDIAN
|
| 810 |
#define RI16_IMM16 (((b1) << 8) | (b2)) |
| 811 |
#else
|
| 812 |
#define RI16_IMM16 (((b2) << 8) | (b1)) |
| 813 |
#endif
|
| 814 |
|
| 815 |
#ifdef TARGET_WORDS_BIGENDIAN
|
| 816 |
#define CALL_N (((b0) & 0xc) >> 2) |
| 817 |
#define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2)) |
| 818 |
#else
|
| 819 |
#define CALL_N (((b0) & 0x30) >> 4) |
| 820 |
#define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10)) |
| 821 |
#endif
|
| 822 |
#define CALL_OFFSET_SE \
|
| 823 |
(((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET) |
| 824 |
|
| 825 |
#define CALLX_N CALL_N
|
| 826 |
#ifdef TARGET_WORDS_BIGENDIAN
|
| 827 |
#define CALLX_M ((b0) & 0x3) |
| 828 |
#else
|
| 829 |
#define CALLX_M (((b0) & 0xc0) >> 6) |
| 830 |
#endif
|
| 831 |
#define CALLX_S RRR_S
|
| 832 |
|
| 833 |
#define BRI12_M CALLX_M
|
| 834 |
#define BRI12_S RRR_S
|
| 835 |
#ifdef TARGET_WORDS_BIGENDIAN
|
| 836 |
#define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2)) |
| 837 |
#else
|
| 838 |
#define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4)) |
| 839 |
#endif
|
| 840 |
#define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12) |
| 841 |
|
| 842 |
#define BRI8_M BRI12_M
|
| 843 |
#define BRI8_R RRI8_R
|
| 844 |
#define BRI8_S RRI8_S
|
| 845 |
#define BRI8_IMM8 RRI8_IMM8
|
| 846 |
#define BRI8_IMM8_SE RRI8_IMM8_SE
|
| 847 |
|
| 848 |
#define RSR_SR (b1)
|
| 849 |
|
| 850 |
uint8_t b0 = ldub_code(dc->pc); |
| 851 |
uint8_t b1 = ldub_code(dc->pc + 1);
|
| 852 |
uint8_t b2 = 0;
|
| 853 |
|
| 854 |
static const uint32_t B4CONST[] = { |
| 855 |
0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 |
| 856 |
}; |
| 857 |
|
| 858 |
static const uint32_t B4CONSTU[] = { |
| 859 |
32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 |
| 860 |
}; |
| 861 |
|
| 862 |
if (OP0 >= 8) { |
| 863 |
dc->next_pc = dc->pc + 2;
|
| 864 |
HAS_OPTION(XTENSA_OPTION_CODE_DENSITY); |
| 865 |
} else {
|
| 866 |
dc->next_pc = dc->pc + 3;
|
| 867 |
b2 = ldub_code(dc->pc + 2);
|
| 868 |
} |
| 869 |
|
| 870 |
switch (OP0) {
|
| 871 |
case 0: /*QRST*/ |
| 872 |
switch (OP1) {
|
| 873 |
case 0: /*RST0*/ |
| 874 |
switch (OP2) {
|
| 875 |
case 0: /*ST0*/ |
| 876 |
if ((RRR_R & 0xc) == 0x8) { |
| 877 |
HAS_OPTION(XTENSA_OPTION_BOOLEAN); |
| 878 |
} |
| 879 |
|
| 880 |
switch (RRR_R) {
|
| 881 |
case 0: /*SNM0*/ |
| 882 |
switch (CALLX_M) {
|
| 883 |
case 0: /*ILL*/ |
| 884 |
gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); |
| 885 |
break;
|
| 886 |
|
| 887 |
case 1: /*reserved*/ |
| 888 |
RESERVED(); |
| 889 |
break;
|
| 890 |
|
| 891 |
case 2: /*JR*/ |
| 892 |
switch (CALLX_N) {
|
| 893 |
case 0: /*RET*/ |
| 894 |
case 2: /*JX*/ |
| 895 |
gen_window_check1(dc, CALLX_S); |
| 896 |
gen_jump(dc, cpu_R[CALLX_S]); |
| 897 |
break;
|
| 898 |
|
| 899 |
case 1: /*RETWw*/ |
| 900 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 901 |
{
|
| 902 |
TCGv_i32 tmp = tcg_const_i32(dc->pc); |
| 903 |
gen_advance_ccount(dc); |
| 904 |
gen_helper_retw(tmp, tmp); |
| 905 |
gen_jump(dc, tmp); |
| 906 |
tcg_temp_free(tmp); |
| 907 |
} |
| 908 |
break;
|
| 909 |
|
| 910 |
case 3: /*reserved*/ |
| 911 |
RESERVED(); |
| 912 |
break;
|
| 913 |
} |
| 914 |
break;
|
| 915 |
|
| 916 |
case 3: /*CALLX*/ |
| 917 |
gen_window_check2(dc, CALLX_S, CALLX_N << 2);
|
| 918 |
switch (CALLX_N) {
|
| 919 |
case 0: /*CALLX0*/ |
| 920 |
{
|
| 921 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 922 |
tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); |
| 923 |
tcg_gen_movi_i32(cpu_R[0], dc->next_pc);
|
| 924 |
gen_jump(dc, tmp); |
| 925 |
tcg_temp_free(tmp); |
| 926 |
} |
| 927 |
break;
|
| 928 |
|
| 929 |
case 1: /*CALLX4w*/ |
| 930 |
case 2: /*CALLX8w*/ |
| 931 |
case 3: /*CALLX12w*/ |
| 932 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 933 |
{
|
| 934 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 935 |
|
| 936 |
tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); |
| 937 |
gen_callw(dc, CALLX_N, tmp); |
| 938 |
tcg_temp_free(tmp); |
| 939 |
} |
| 940 |
break;
|
| 941 |
} |
| 942 |
break;
|
| 943 |
} |
| 944 |
break;
|
| 945 |
|
| 946 |
case 1: /*MOVSPw*/ |
| 947 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 948 |
gen_window_check2(dc, RRR_T, RRR_S); |
| 949 |
{
|
| 950 |
TCGv_i32 pc = tcg_const_i32(dc->pc); |
| 951 |
gen_advance_ccount(dc); |
| 952 |
gen_helper_movsp(pc); |
| 953 |
tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]); |
| 954 |
tcg_temp_free(pc); |
| 955 |
} |
| 956 |
break;
|
| 957 |
|
| 958 |
case 2: /*SYNC*/ |
| 959 |
switch (RRR_T) {
|
| 960 |
case 0: /*ISYNC*/ |
| 961 |
break;
|
| 962 |
|
| 963 |
case 1: /*RSYNC*/ |
| 964 |
break;
|
| 965 |
|
| 966 |
case 2: /*ESYNC*/ |
| 967 |
break;
|
| 968 |
|
| 969 |
case 3: /*DSYNC*/ |
| 970 |
break;
|
| 971 |
|
| 972 |
case 8: /*EXCW*/ |
| 973 |
HAS_OPTION(XTENSA_OPTION_EXCEPTION); |
| 974 |
break;
|
| 975 |
|
| 976 |
case 12: /*MEMW*/ |
| 977 |
break;
|
| 978 |
|
| 979 |
case 13: /*EXTW*/ |
| 980 |
break;
|
| 981 |
|
| 982 |
case 15: /*NOP*/ |
| 983 |
break;
|
| 984 |
|
| 985 |
default: /*reserved*/ |
| 986 |
RESERVED(); |
| 987 |
break;
|
| 988 |
} |
| 989 |
break;
|
| 990 |
|
| 991 |
case 3: /*RFEIx*/ |
| 992 |
switch (RRR_T) {
|
| 993 |
case 0: /*RFETx*/ |
| 994 |
HAS_OPTION(XTENSA_OPTION_EXCEPTION); |
| 995 |
switch (RRR_S) {
|
| 996 |
case 0: /*RFEx*/ |
| 997 |
gen_check_privilege(dc); |
| 998 |
tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); |
| 999 |
gen_helper_check_interrupts(cpu_env); |
| 1000 |
gen_jump(dc, cpu_SR[EPC1]); |
| 1001 |
break;
|
| 1002 |
|
| 1003 |
case 1: /*RFUEx*/ |
| 1004 |
RESERVED(); |
| 1005 |
break;
|
| 1006 |
|
| 1007 |
case 2: /*RFDEx*/ |
| 1008 |
gen_check_privilege(dc); |
| 1009 |
gen_jump(dc, cpu_SR[ |
| 1010 |
dc->config->ndepc ? DEPC : EPC1]); |
| 1011 |
break;
|
| 1012 |
|
| 1013 |
case 4: /*RFWOw*/ |
| 1014 |
case 5: /*RFWUw*/ |
| 1015 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 1016 |
gen_check_privilege(dc); |
| 1017 |
{
|
| 1018 |
TCGv_i32 tmp = tcg_const_i32(1);
|
| 1019 |
|
| 1020 |
tcg_gen_andi_i32( |
| 1021 |
cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); |
| 1022 |
tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]); |
| 1023 |
|
| 1024 |
if (RRR_S == 4) { |
| 1025 |
tcg_gen_andc_i32(cpu_SR[WINDOW_START], |
| 1026 |
cpu_SR[WINDOW_START], tmp); |
| 1027 |
} else {
|
| 1028 |
tcg_gen_or_i32(cpu_SR[WINDOW_START], |
| 1029 |
cpu_SR[WINDOW_START], tmp); |
| 1030 |
} |
| 1031 |
|
| 1032 |
gen_helper_restore_owb(); |
| 1033 |
gen_helper_check_interrupts(cpu_env); |
| 1034 |
gen_jump(dc, cpu_SR[EPC1]); |
| 1035 |
|
| 1036 |
tcg_temp_free(tmp); |
| 1037 |
} |
| 1038 |
break;
|
| 1039 |
|
| 1040 |
default: /*reserved*/ |
| 1041 |
RESERVED(); |
| 1042 |
break;
|
| 1043 |
} |
| 1044 |
break;
|
| 1045 |
|
| 1046 |
case 1: /*RFIx*/ |
| 1047 |
HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT); |
| 1048 |
if (RRR_S >= 2 && RRR_S <= dc->config->nlevel) { |
| 1049 |
gen_check_privilege(dc); |
| 1050 |
tcg_gen_mov_i32(cpu_SR[PS], |
| 1051 |
cpu_SR[EPS2 + RRR_S - 2]);
|
| 1052 |
gen_helper_check_interrupts(cpu_env); |
| 1053 |
gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]);
|
| 1054 |
} else {
|
| 1055 |
qemu_log("RFI %d is illegal\n", RRR_S);
|
| 1056 |
gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); |
| 1057 |
} |
| 1058 |
break;
|
| 1059 |
|
| 1060 |
case 2: /*RFME*/ |
| 1061 |
TBD(); |
| 1062 |
break;
|
| 1063 |
|
| 1064 |
default: /*reserved*/ |
| 1065 |
RESERVED(); |
| 1066 |
break;
|
| 1067 |
|
| 1068 |
} |
| 1069 |
break;
|
| 1070 |
|
| 1071 |
case 4: /*BREAKx*/ |
| 1072 |
HAS_OPTION(XTENSA_OPTION_DEBUG); |
| 1073 |
if (dc->debug) {
|
| 1074 |
gen_debug_exception(dc, DEBUGCAUSE_BI); |
| 1075 |
} |
| 1076 |
break;
|
| 1077 |
|
| 1078 |
case 5: /*SYSCALLx*/ |
| 1079 |
HAS_OPTION(XTENSA_OPTION_EXCEPTION); |
| 1080 |
switch (RRR_S) {
|
| 1081 |
case 0: /*SYSCALLx*/ |
| 1082 |
gen_exception_cause(dc, SYSCALL_CAUSE); |
| 1083 |
break;
|
| 1084 |
|
| 1085 |
case 1: /*SIMCALL*/ |
| 1086 |
if (semihosting_enabled) {
|
| 1087 |
gen_check_privilege(dc); |
| 1088 |
gen_helper_simcall(cpu_env); |
| 1089 |
} else {
|
| 1090 |
qemu_log("SIMCALL but semihosting is disabled\n");
|
| 1091 |
gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); |
| 1092 |
} |
| 1093 |
break;
|
| 1094 |
|
| 1095 |
default:
|
| 1096 |
RESERVED(); |
| 1097 |
break;
|
| 1098 |
} |
| 1099 |
break;
|
| 1100 |
|
| 1101 |
case 6: /*RSILx*/ |
| 1102 |
HAS_OPTION(XTENSA_OPTION_INTERRUPT); |
| 1103 |
gen_check_privilege(dc); |
| 1104 |
gen_window_check1(dc, RRR_T); |
| 1105 |
tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]); |
| 1106 |
tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_INTLEVEL); |
| 1107 |
tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S); |
| 1108 |
gen_helper_check_interrupts(cpu_env); |
| 1109 |
gen_jumpi_check_loop_end(dc, 0);
|
| 1110 |
break;
|
| 1111 |
|
| 1112 |
case 7: /*WAITIx*/ |
| 1113 |
HAS_OPTION(XTENSA_OPTION_INTERRUPT); |
| 1114 |
gen_check_privilege(dc); |
| 1115 |
gen_waiti(dc, RRR_S); |
| 1116 |
break;
|
| 1117 |
|
| 1118 |
case 8: /*ANY4p*/ |
| 1119 |
case 9: /*ALL4p*/ |
| 1120 |
case 10: /*ANY8p*/ |
| 1121 |
case 11: /*ALL8p*/ |
| 1122 |
HAS_OPTION(XTENSA_OPTION_BOOLEAN); |
| 1123 |
{
|
| 1124 |
const unsigned shift = (RRR_R & 2) ? 8 : 4; |
| 1125 |
TCGv_i32 mask = tcg_const_i32( |
| 1126 |
((1 << shift) - 1) << RRR_S); |
| 1127 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1128 |
|
| 1129 |
tcg_gen_and_i32(tmp, cpu_SR[BR], mask); |
| 1130 |
if (RRR_R & 1) { /*ALL*/ |
| 1131 |
tcg_gen_addi_i32(tmp, tmp, 1 << RRR_S);
|
| 1132 |
} else { /*ANY*/ |
| 1133 |
tcg_gen_add_i32(tmp, tmp, mask); |
| 1134 |
} |
| 1135 |
tcg_gen_shri_i32(tmp, tmp, RRR_S + shift); |
| 1136 |
tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], |
| 1137 |
tmp, RRR_T, 1);
|
| 1138 |
tcg_temp_free(mask); |
| 1139 |
tcg_temp_free(tmp); |
| 1140 |
} |
| 1141 |
break;
|
| 1142 |
|
| 1143 |
default: /*reserved*/ |
| 1144 |
RESERVED(); |
| 1145 |
break;
|
| 1146 |
|
| 1147 |
} |
| 1148 |
break;
|
| 1149 |
|
| 1150 |
case 1: /*AND*/ |
| 1151 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1152 |
tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1153 |
break;
|
| 1154 |
|
| 1155 |
case 2: /*OR*/ |
| 1156 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1157 |
tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1158 |
break;
|
| 1159 |
|
| 1160 |
case 3: /*XOR*/ |
| 1161 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1162 |
tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1163 |
break;
|
| 1164 |
|
| 1165 |
case 4: /*ST1*/ |
| 1166 |
switch (RRR_R) {
|
| 1167 |
case 0: /*SSR*/ |
| 1168 |
gen_window_check1(dc, RRR_S); |
| 1169 |
gen_right_shift_sar(dc, cpu_R[RRR_S]); |
| 1170 |
break;
|
| 1171 |
|
| 1172 |
case 1: /*SSL*/ |
| 1173 |
gen_window_check1(dc, RRR_S); |
| 1174 |
gen_left_shift_sar(dc, cpu_R[RRR_S]); |
| 1175 |
break;
|
| 1176 |
|
| 1177 |
case 2: /*SSA8L*/ |
| 1178 |
gen_window_check1(dc, RRR_S); |
| 1179 |
{
|
| 1180 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1181 |
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
|
| 1182 |
gen_right_shift_sar(dc, tmp); |
| 1183 |
tcg_temp_free(tmp); |
| 1184 |
} |
| 1185 |
break;
|
| 1186 |
|
| 1187 |
case 3: /*SSA8B*/ |
| 1188 |
gen_window_check1(dc, RRR_S); |
| 1189 |
{
|
| 1190 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1191 |
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
|
| 1192 |
gen_left_shift_sar(dc, tmp); |
| 1193 |
tcg_temp_free(tmp); |
| 1194 |
} |
| 1195 |
break;
|
| 1196 |
|
| 1197 |
case 4: /*SSAI*/ |
| 1198 |
{
|
| 1199 |
TCGv_i32 tmp = tcg_const_i32( |
| 1200 |
RRR_S | ((RRR_T & 1) << 4)); |
| 1201 |
gen_right_shift_sar(dc, tmp); |
| 1202 |
tcg_temp_free(tmp); |
| 1203 |
} |
| 1204 |
break;
|
| 1205 |
|
| 1206 |
case 6: /*RER*/ |
| 1207 |
TBD(); |
| 1208 |
break;
|
| 1209 |
|
| 1210 |
case 7: /*WER*/ |
| 1211 |
TBD(); |
| 1212 |
break;
|
| 1213 |
|
| 1214 |
case 8: /*ROTWw*/ |
| 1215 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 1216 |
gen_check_privilege(dc); |
| 1217 |
{
|
| 1218 |
TCGv_i32 tmp = tcg_const_i32( |
| 1219 |
RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0)); |
| 1220 |
gen_helper_rotw(tmp); |
| 1221 |
tcg_temp_free(tmp); |
| 1222 |
reset_used_window(dc); |
| 1223 |
} |
| 1224 |
break;
|
| 1225 |
|
| 1226 |
case 14: /*NSAu*/ |
| 1227 |
HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA); |
| 1228 |
gen_window_check2(dc, RRR_S, RRR_T); |
| 1229 |
gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]); |
| 1230 |
break;
|
| 1231 |
|
| 1232 |
case 15: /*NSAUu*/ |
| 1233 |
HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA); |
| 1234 |
gen_window_check2(dc, RRR_S, RRR_T); |
| 1235 |
gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]); |
| 1236 |
break;
|
| 1237 |
|
| 1238 |
default: /*reserved*/ |
| 1239 |
RESERVED(); |
| 1240 |
break;
|
| 1241 |
} |
| 1242 |
break;
|
| 1243 |
|
| 1244 |
case 5: /*TLB*/ |
| 1245 |
HAS_OPTION_BITS( |
| 1246 |
XTENSA_OPTION_BIT(XTENSA_OPTION_MMU) | |
| 1247 |
XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) | |
| 1248 |
XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION)); |
| 1249 |
gen_check_privilege(dc); |
| 1250 |
gen_window_check2(dc, RRR_S, RRR_T); |
| 1251 |
{
|
| 1252 |
TCGv_i32 dtlb = tcg_const_i32((RRR_R & 8) != 0); |
| 1253 |
|
| 1254 |
switch (RRR_R & 7) { |
| 1255 |
case 3: /*RITLB0*/ /*RDTLB0*/ |
| 1256 |
gen_helper_rtlb0(cpu_R[RRR_T], cpu_R[RRR_S], dtlb); |
| 1257 |
break;
|
| 1258 |
|
| 1259 |
case 4: /*IITLB*/ /*IDTLB*/ |
| 1260 |
gen_helper_itlb(cpu_R[RRR_S], dtlb); |
| 1261 |
/* This could change memory mapping, so exit tb */
|
| 1262 |
gen_jumpi_check_loop_end(dc, -1);
|
| 1263 |
break;
|
| 1264 |
|
| 1265 |
case 5: /*PITLB*/ /*PDTLB*/ |
| 1266 |
tcg_gen_movi_i32(cpu_pc, dc->pc); |
| 1267 |
gen_helper_ptlb(cpu_R[RRR_T], cpu_R[RRR_S], dtlb); |
| 1268 |
break;
|
| 1269 |
|
| 1270 |
case 6: /*WITLB*/ /*WDTLB*/ |
| 1271 |
gen_helper_wtlb(cpu_R[RRR_T], cpu_R[RRR_S], dtlb); |
| 1272 |
/* This could change memory mapping, so exit tb */
|
| 1273 |
gen_jumpi_check_loop_end(dc, -1);
|
| 1274 |
break;
|
| 1275 |
|
| 1276 |
case 7: /*RITLB1*/ /*RDTLB1*/ |
| 1277 |
gen_helper_rtlb1(cpu_R[RRR_T], cpu_R[RRR_S], dtlb); |
| 1278 |
break;
|
| 1279 |
|
| 1280 |
default:
|
| 1281 |
tcg_temp_free(dtlb); |
| 1282 |
RESERVED(); |
| 1283 |
break;
|
| 1284 |
} |
| 1285 |
tcg_temp_free(dtlb); |
| 1286 |
} |
| 1287 |
break;
|
| 1288 |
|
| 1289 |
case 6: /*RT0*/ |
| 1290 |
gen_window_check2(dc, RRR_R, RRR_T); |
| 1291 |
switch (RRR_S) {
|
| 1292 |
case 0: /*NEG*/ |
| 1293 |
tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]); |
| 1294 |
break;
|
| 1295 |
|
| 1296 |
case 1: /*ABS*/ |
| 1297 |
{
|
| 1298 |
int label = gen_new_label();
|
| 1299 |
tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]); |
| 1300 |
tcg_gen_brcondi_i32( |
| 1301 |
TCG_COND_GE, cpu_R[RRR_R], 0, label);
|
| 1302 |
tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]); |
| 1303 |
gen_set_label(label); |
| 1304 |
} |
| 1305 |
break;
|
| 1306 |
|
| 1307 |
default: /*reserved*/ |
| 1308 |
RESERVED(); |
| 1309 |
break;
|
| 1310 |
} |
| 1311 |
break;
|
| 1312 |
|
| 1313 |
case 7: /*reserved*/ |
| 1314 |
RESERVED(); |
| 1315 |
break;
|
| 1316 |
|
| 1317 |
case 8: /*ADD*/ |
| 1318 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1319 |
tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1320 |
break;
|
| 1321 |
|
| 1322 |
case 9: /*ADD**/ |
| 1323 |
case 10: |
| 1324 |
case 11: |
| 1325 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1326 |
{
|
| 1327 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1328 |
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8);
|
| 1329 |
tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); |
| 1330 |
tcg_temp_free(tmp); |
| 1331 |
} |
| 1332 |
break;
|
| 1333 |
|
| 1334 |
case 12: /*SUB*/ |
| 1335 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1336 |
tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1337 |
break;
|
| 1338 |
|
| 1339 |
case 13: /*SUB**/ |
| 1340 |
case 14: |
| 1341 |
case 15: |
| 1342 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1343 |
{
|
| 1344 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1345 |
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12);
|
| 1346 |
tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); |
| 1347 |
tcg_temp_free(tmp); |
| 1348 |
} |
| 1349 |
break;
|
| 1350 |
} |
| 1351 |
break;
|
| 1352 |
|
| 1353 |
case 1: /*RST1*/ |
| 1354 |
switch (OP2) {
|
| 1355 |
case 0: /*SLLI*/ |
| 1356 |
case 1: |
| 1357 |
gen_window_check2(dc, RRR_R, RRR_S); |
| 1358 |
tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S], |
| 1359 |
32 - (RRR_T | ((OP2 & 1) << 4))); |
| 1360 |
break;
|
| 1361 |
|
| 1362 |
case 2: /*SRAI*/ |
| 1363 |
case 3: |
| 1364 |
gen_window_check2(dc, RRR_R, RRR_T); |
| 1365 |
tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T], |
| 1366 |
RRR_S | ((OP2 & 1) << 4)); |
| 1367 |
break;
|
| 1368 |
|
| 1369 |
case 4: /*SRLI*/ |
| 1370 |
gen_window_check2(dc, RRR_R, RRR_T); |
| 1371 |
tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S); |
| 1372 |
break;
|
| 1373 |
|
| 1374 |
case 6: /*XSR*/ |
| 1375 |
{
|
| 1376 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1377 |
if (RSR_SR >= 64) { |
| 1378 |
gen_check_privilege(dc); |
| 1379 |
} |
| 1380 |
gen_window_check1(dc, RRR_T); |
| 1381 |
tcg_gen_mov_i32(tmp, cpu_R[RRR_T]); |
| 1382 |
gen_rsr(dc, cpu_R[RRR_T], RSR_SR); |
| 1383 |
gen_wsr(dc, RSR_SR, tmp); |
| 1384 |
tcg_temp_free(tmp); |
| 1385 |
if (!sregnames[RSR_SR]) {
|
| 1386 |
TBD(); |
| 1387 |
} |
| 1388 |
} |
| 1389 |
break;
|
| 1390 |
|
| 1391 |
/*
|
| 1392 |
* Note: 64 bit ops are used here solely because SAR values
|
| 1393 |
* have range 0..63
|
| 1394 |
*/
|
| 1395 |
#define gen_shift_reg(cmd, reg) do { \ |
| 1396 |
TCGv_i64 tmp = tcg_temp_new_i64(); \ |
| 1397 |
tcg_gen_extu_i32_i64(tmp, reg); \ |
| 1398 |
tcg_gen_##cmd##_i64(v, v, tmp); \ |
| 1399 |
tcg_gen_trunc_i64_i32(cpu_R[RRR_R], v); \ |
| 1400 |
tcg_temp_free_i64(v); \ |
| 1401 |
tcg_temp_free_i64(tmp); \ |
| 1402 |
} while (0) |
| 1403 |
|
| 1404 |
#define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR])
|
| 1405 |
|
| 1406 |
case 8: /*SRC*/ |
| 1407 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1408 |
{
|
| 1409 |
TCGv_i64 v = tcg_temp_new_i64(); |
| 1410 |
tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]); |
| 1411 |
gen_shift(shr); |
| 1412 |
} |
| 1413 |
break;
|
| 1414 |
|
| 1415 |
case 9: /*SRL*/ |
| 1416 |
gen_window_check2(dc, RRR_R, RRR_T); |
| 1417 |
if (dc->sar_5bit) {
|
| 1418 |
tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); |
| 1419 |
} else {
|
| 1420 |
TCGv_i64 v = tcg_temp_new_i64(); |
| 1421 |
tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]); |
| 1422 |
gen_shift(shr); |
| 1423 |
} |
| 1424 |
break;
|
| 1425 |
|
| 1426 |
case 10: /*SLL*/ |
| 1427 |
gen_window_check2(dc, RRR_R, RRR_S); |
| 1428 |
if (dc->sar_m32_5bit) {
|
| 1429 |
tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32); |
| 1430 |
} else {
|
| 1431 |
TCGv_i64 v = tcg_temp_new_i64(); |
| 1432 |
TCGv_i32 s = tcg_const_i32(32);
|
| 1433 |
tcg_gen_sub_i32(s, s, cpu_SR[SAR]); |
| 1434 |
tcg_gen_andi_i32(s, s, 0x3f);
|
| 1435 |
tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]); |
| 1436 |
gen_shift_reg(shl, s); |
| 1437 |
tcg_temp_free(s); |
| 1438 |
} |
| 1439 |
break;
|
| 1440 |
|
| 1441 |
case 11: /*SRA*/ |
| 1442 |
gen_window_check2(dc, RRR_R, RRR_T); |
| 1443 |
if (dc->sar_5bit) {
|
| 1444 |
tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); |
| 1445 |
} else {
|
| 1446 |
TCGv_i64 v = tcg_temp_new_i64(); |
| 1447 |
tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]); |
| 1448 |
gen_shift(sar); |
| 1449 |
} |
| 1450 |
break;
|
| 1451 |
#undef gen_shift
|
| 1452 |
#undef gen_shift_reg
|
| 1453 |
|
| 1454 |
case 12: /*MUL16U*/ |
| 1455 |
HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); |
| 1456 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1457 |
{
|
| 1458 |
TCGv_i32 v1 = tcg_temp_new_i32(); |
| 1459 |
TCGv_i32 v2 = tcg_temp_new_i32(); |
| 1460 |
tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]); |
| 1461 |
tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]); |
| 1462 |
tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); |
| 1463 |
tcg_temp_free(v2); |
| 1464 |
tcg_temp_free(v1); |
| 1465 |
} |
| 1466 |
break;
|
| 1467 |
|
| 1468 |
case 13: /*MUL16S*/ |
| 1469 |
HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); |
| 1470 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1471 |
{
|
| 1472 |
TCGv_i32 v1 = tcg_temp_new_i32(); |
| 1473 |
TCGv_i32 v2 = tcg_temp_new_i32(); |
| 1474 |
tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]); |
| 1475 |
tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]); |
| 1476 |
tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); |
| 1477 |
tcg_temp_free(v2); |
| 1478 |
tcg_temp_free(v1); |
| 1479 |
} |
| 1480 |
break;
|
| 1481 |
|
| 1482 |
default: /*reserved*/ |
| 1483 |
RESERVED(); |
| 1484 |
break;
|
| 1485 |
} |
| 1486 |
break;
|
| 1487 |
|
| 1488 |
case 2: /*RST2*/ |
| 1489 |
if (OP2 >= 8) { |
| 1490 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1491 |
} |
| 1492 |
|
| 1493 |
if (OP2 >= 12) { |
| 1494 |
HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV); |
| 1495 |
int label = gen_new_label();
|
| 1496 |
tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label);
|
| 1497 |
gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE); |
| 1498 |
gen_set_label(label); |
| 1499 |
} |
| 1500 |
|
| 1501 |
switch (OP2) {
|
| 1502 |
#define BOOLEAN_LOGIC(fn, r, s, t) \
|
| 1503 |
do { \
|
| 1504 |
HAS_OPTION(XTENSA_OPTION_BOOLEAN); \ |
| 1505 |
TCGv_i32 tmp1 = tcg_temp_new_i32(); \ |
| 1506 |
TCGv_i32 tmp2 = tcg_temp_new_i32(); \ |
| 1507 |
\ |
| 1508 |
tcg_gen_shri_i32(tmp1, cpu_SR[BR], s); \ |
| 1509 |
tcg_gen_shri_i32(tmp2, cpu_SR[BR], t); \ |
| 1510 |
tcg_gen_##fn##_i32(tmp1, tmp1, tmp2); \ |
| 1511 |
tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], tmp1, r, 1); \
|
| 1512 |
tcg_temp_free(tmp1); \ |
| 1513 |
tcg_temp_free(tmp2); \ |
| 1514 |
} while (0) |
| 1515 |
|
| 1516 |
case 0: /*ANDBp*/ |
| 1517 |
BOOLEAN_LOGIC(and, RRR_R, RRR_S, RRR_T); |
| 1518 |
break;
|
| 1519 |
|
| 1520 |
case 1: /*ANDBCp*/ |
| 1521 |
BOOLEAN_LOGIC(andc, RRR_R, RRR_S, RRR_T); |
| 1522 |
break;
|
| 1523 |
|
| 1524 |
case 2: /*ORBp*/ |
| 1525 |
BOOLEAN_LOGIC(or, RRR_R, RRR_S, RRR_T); |
| 1526 |
break;
|
| 1527 |
|
| 1528 |
case 3: /*ORBCp*/ |
| 1529 |
BOOLEAN_LOGIC(orc, RRR_R, RRR_S, RRR_T); |
| 1530 |
break;
|
| 1531 |
|
| 1532 |
case 4: /*XORBp*/ |
| 1533 |
BOOLEAN_LOGIC(xor, RRR_R, RRR_S, RRR_T); |
| 1534 |
break;
|
| 1535 |
|
| 1536 |
#undef BOOLEAN_LOGIC
|
| 1537 |
|
| 1538 |
case 8: /*MULLi*/ |
| 1539 |
HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL); |
| 1540 |
tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1541 |
break;
|
| 1542 |
|
| 1543 |
case 10: /*MULUHi*/ |
| 1544 |
case 11: /*MULSHi*/ |
| 1545 |
HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL_HIGH); |
| 1546 |
{
|
| 1547 |
TCGv_i64 r = tcg_temp_new_i64(); |
| 1548 |
TCGv_i64 s = tcg_temp_new_i64(); |
| 1549 |
TCGv_i64 t = tcg_temp_new_i64(); |
| 1550 |
|
| 1551 |
if (OP2 == 10) { |
| 1552 |
tcg_gen_extu_i32_i64(s, cpu_R[RRR_S]); |
| 1553 |
tcg_gen_extu_i32_i64(t, cpu_R[RRR_T]); |
| 1554 |
} else {
|
| 1555 |
tcg_gen_ext_i32_i64(s, cpu_R[RRR_S]); |
| 1556 |
tcg_gen_ext_i32_i64(t, cpu_R[RRR_T]); |
| 1557 |
} |
| 1558 |
tcg_gen_mul_i64(r, s, t); |
| 1559 |
tcg_gen_shri_i64(r, r, 32);
|
| 1560 |
tcg_gen_trunc_i64_i32(cpu_R[RRR_R], r); |
| 1561 |
|
| 1562 |
tcg_temp_free_i64(r); |
| 1563 |
tcg_temp_free_i64(s); |
| 1564 |
tcg_temp_free_i64(t); |
| 1565 |
} |
| 1566 |
break;
|
| 1567 |
|
| 1568 |
case 12: /*QUOUi*/ |
| 1569 |
tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1570 |
break;
|
| 1571 |
|
| 1572 |
case 13: /*QUOSi*/ |
| 1573 |
case 15: /*REMSi*/ |
| 1574 |
{
|
| 1575 |
int label1 = gen_new_label();
|
| 1576 |
int label2 = gen_new_label();
|
| 1577 |
|
| 1578 |
tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_S], 0x80000000,
|
| 1579 |
label1); |
| 1580 |
tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0xffffffff,
|
| 1581 |
label1); |
| 1582 |
tcg_gen_movi_i32(cpu_R[RRR_R], |
| 1583 |
OP2 == 13 ? 0x80000000 : 0); |
| 1584 |
tcg_gen_br(label2); |
| 1585 |
gen_set_label(label1); |
| 1586 |
if (OP2 == 13) { |
| 1587 |
tcg_gen_div_i32(cpu_R[RRR_R], |
| 1588 |
cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1589 |
} else {
|
| 1590 |
tcg_gen_rem_i32(cpu_R[RRR_R], |
| 1591 |
cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1592 |
} |
| 1593 |
gen_set_label(label2); |
| 1594 |
} |
| 1595 |
break;
|
| 1596 |
|
| 1597 |
case 14: /*REMUi*/ |
| 1598 |
tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); |
| 1599 |
break;
|
| 1600 |
|
| 1601 |
default: /*reserved*/ |
| 1602 |
RESERVED(); |
| 1603 |
break;
|
| 1604 |
} |
| 1605 |
break;
|
| 1606 |
|
| 1607 |
case 3: /*RST3*/ |
| 1608 |
switch (OP2) {
|
| 1609 |
case 0: /*RSR*/ |
| 1610 |
if (RSR_SR >= 64) { |
| 1611 |
gen_check_privilege(dc); |
| 1612 |
} |
| 1613 |
gen_window_check1(dc, RRR_T); |
| 1614 |
gen_rsr(dc, cpu_R[RRR_T], RSR_SR); |
| 1615 |
if (!sregnames[RSR_SR]) {
|
| 1616 |
TBD(); |
| 1617 |
} |
| 1618 |
break;
|
| 1619 |
|
| 1620 |
case 1: /*WSR*/ |
| 1621 |
if (RSR_SR >= 64) { |
| 1622 |
gen_check_privilege(dc); |
| 1623 |
} |
| 1624 |
gen_window_check1(dc, RRR_T); |
| 1625 |
gen_wsr(dc, RSR_SR, cpu_R[RRR_T]); |
| 1626 |
if (!sregnames[RSR_SR]) {
|
| 1627 |
TBD(); |
| 1628 |
} |
| 1629 |
break;
|
| 1630 |
|
| 1631 |
case 2: /*SEXTu*/ |
| 1632 |
HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT); |
| 1633 |
gen_window_check2(dc, RRR_R, RRR_S); |
| 1634 |
{
|
| 1635 |
int shift = 24 - RRR_T; |
| 1636 |
|
| 1637 |
if (shift == 24) { |
| 1638 |
tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); |
| 1639 |
} else if (shift == 16) { |
| 1640 |
tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); |
| 1641 |
} else {
|
| 1642 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1643 |
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift); |
| 1644 |
tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift); |
| 1645 |
tcg_temp_free(tmp); |
| 1646 |
} |
| 1647 |
} |
| 1648 |
break;
|
| 1649 |
|
| 1650 |
case 3: /*CLAMPSu*/ |
| 1651 |
HAS_OPTION(XTENSA_OPTION_MISC_OP_CLAMPS); |
| 1652 |
gen_window_check2(dc, RRR_R, RRR_S); |
| 1653 |
{
|
| 1654 |
TCGv_i32 tmp1 = tcg_temp_new_i32(); |
| 1655 |
TCGv_i32 tmp2 = tcg_temp_new_i32(); |
| 1656 |
int label = gen_new_label();
|
| 1657 |
|
| 1658 |
tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T);
|
| 1659 |
tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]); |
| 1660 |
tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7)); |
| 1661 |
tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); |
| 1662 |
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp2, 0, label);
|
| 1663 |
|
| 1664 |
tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31);
|
| 1665 |
tcg_gen_xori_i32(cpu_R[RRR_R], tmp1, |
| 1666 |
0xffffffff >> (25 - RRR_T)); |
| 1667 |
|
| 1668 |
gen_set_label(label); |
| 1669 |
|
| 1670 |
tcg_temp_free(tmp1); |
| 1671 |
tcg_temp_free(tmp2); |
| 1672 |
} |
| 1673 |
break;
|
| 1674 |
|
| 1675 |
case 4: /*MINu*/ |
| 1676 |
case 5: /*MAXu*/ |
| 1677 |
case 6: /*MINUu*/ |
| 1678 |
case 7: /*MAXUu*/ |
| 1679 |
HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX); |
| 1680 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1681 |
{
|
| 1682 |
static const TCGCond cond[] = { |
| 1683 |
TCG_COND_LE, |
| 1684 |
TCG_COND_GE, |
| 1685 |
TCG_COND_LEU, |
| 1686 |
TCG_COND_GEU |
| 1687 |
}; |
| 1688 |
int label = gen_new_label();
|
| 1689 |
|
| 1690 |
if (RRR_R != RRR_T) {
|
| 1691 |
tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); |
| 1692 |
tcg_gen_brcond_i32(cond[OP2 - 4],
|
| 1693 |
cpu_R[RRR_S], cpu_R[RRR_T], label); |
| 1694 |
tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_T]); |
| 1695 |
} else {
|
| 1696 |
tcg_gen_brcond_i32(cond[OP2 - 4],
|
| 1697 |
cpu_R[RRR_T], cpu_R[RRR_S], label); |
| 1698 |
tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); |
| 1699 |
} |
| 1700 |
gen_set_label(label); |
| 1701 |
} |
| 1702 |
break;
|
| 1703 |
|
| 1704 |
case 8: /*MOVEQZ*/ |
| 1705 |
case 9: /*MOVNEZ*/ |
| 1706 |
case 10: /*MOVLTZ*/ |
| 1707 |
case 11: /*MOVGEZ*/ |
| 1708 |
gen_window_check3(dc, RRR_R, RRR_S, RRR_T); |
| 1709 |
{
|
| 1710 |
static const TCGCond cond[] = { |
| 1711 |
TCG_COND_NE, |
| 1712 |
TCG_COND_EQ, |
| 1713 |
TCG_COND_GE, |
| 1714 |
TCG_COND_LT |
| 1715 |
}; |
| 1716 |
int label = gen_new_label();
|
| 1717 |
tcg_gen_brcondi_i32(cond[OP2 - 8], cpu_R[RRR_T], 0, label); |
| 1718 |
tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); |
| 1719 |
gen_set_label(label); |
| 1720 |
} |
| 1721 |
break;
|
| 1722 |
|
| 1723 |
case 12: /*MOVFp*/ |
| 1724 |
case 13: /*MOVTp*/ |
| 1725 |
HAS_OPTION(XTENSA_OPTION_BOOLEAN); |
| 1726 |
gen_window_check2(dc, RRR_R, RRR_S); |
| 1727 |
{
|
| 1728 |
int label = gen_new_label();
|
| 1729 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1730 |
|
| 1731 |
tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
|
| 1732 |
tcg_gen_brcondi_i32( |
| 1733 |
OP2 & 1 ? TCG_COND_EQ : TCG_COND_NE,
|
| 1734 |
tmp, 0, label);
|
| 1735 |
tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]); |
| 1736 |
gen_set_label(label); |
| 1737 |
tcg_temp_free(tmp); |
| 1738 |
} |
| 1739 |
break;
|
| 1740 |
|
| 1741 |
case 14: /*RUR*/ |
| 1742 |
gen_window_check1(dc, RRR_R); |
| 1743 |
{
|
| 1744 |
int st = (RRR_S << 4) + RRR_T; |
| 1745 |
if (uregnames[st]) {
|
| 1746 |
tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]); |
| 1747 |
} else {
|
| 1748 |
qemu_log("RUR %d not implemented, ", st);
|
| 1749 |
TBD(); |
| 1750 |
} |
| 1751 |
} |
| 1752 |
break;
|
| 1753 |
|
| 1754 |
case 15: /*WUR*/ |
| 1755 |
gen_window_check1(dc, RRR_T); |
| 1756 |
{
|
| 1757 |
if (uregnames[RSR_SR]) {
|
| 1758 |
tcg_gen_mov_i32(cpu_UR[RSR_SR], cpu_R[RRR_T]); |
| 1759 |
} else {
|
| 1760 |
qemu_log("WUR %d not implemented, ", RSR_SR);
|
| 1761 |
TBD(); |
| 1762 |
} |
| 1763 |
} |
| 1764 |
break;
|
| 1765 |
|
| 1766 |
} |
| 1767 |
break;
|
| 1768 |
|
| 1769 |
case 4: /*EXTUI*/ |
| 1770 |
case 5: |
| 1771 |
gen_window_check2(dc, RRR_R, RRR_T); |
| 1772 |
{
|
| 1773 |
int shiftimm = RRR_S | (OP1 << 4); |
| 1774 |
int maskimm = (1 << (OP2 + 1)) - 1; |
| 1775 |
|
| 1776 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 1777 |
tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm); |
| 1778 |
tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm); |
| 1779 |
tcg_temp_free(tmp); |
| 1780 |
} |
| 1781 |
break;
|
| 1782 |
|
| 1783 |
case 6: /*CUST0*/ |
| 1784 |
RESERVED(); |
| 1785 |
break;
|
| 1786 |
|
| 1787 |
case 7: /*CUST1*/ |
| 1788 |
RESERVED(); |
| 1789 |
break;
|
| 1790 |
|
| 1791 |
case 8: /*LSCXp*/ |
| 1792 |
HAS_OPTION(XTENSA_OPTION_COPROCESSOR); |
| 1793 |
TBD(); |
| 1794 |
break;
|
| 1795 |
|
| 1796 |
case 9: /*LSC4*/ |
| 1797 |
gen_window_check2(dc, RRR_S, RRR_T); |
| 1798 |
switch (OP2) {
|
| 1799 |
case 0: /*L32E*/ |
| 1800 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 1801 |
gen_check_privilege(dc); |
| 1802 |
{
|
| 1803 |
TCGv_i32 addr = tcg_temp_new_i32(); |
| 1804 |
tcg_gen_addi_i32(addr, cpu_R[RRR_S], |
| 1805 |
(0xffffffc0 | (RRR_R << 2))); |
| 1806 |
tcg_gen_qemu_ld32u(cpu_R[RRR_T], addr, dc->ring); |
| 1807 |
tcg_temp_free(addr); |
| 1808 |
} |
| 1809 |
break;
|
| 1810 |
|
| 1811 |
case 4: /*S32E*/ |
| 1812 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 1813 |
gen_check_privilege(dc); |
| 1814 |
{
|
| 1815 |
TCGv_i32 addr = tcg_temp_new_i32(); |
| 1816 |
tcg_gen_addi_i32(addr, cpu_R[RRR_S], |
| 1817 |
(0xffffffc0 | (RRR_R << 2))); |
| 1818 |
tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring); |
| 1819 |
tcg_temp_free(addr); |
| 1820 |
} |
| 1821 |
break;
|
| 1822 |
|
| 1823 |
default:
|
| 1824 |
RESERVED(); |
| 1825 |
break;
|
| 1826 |
} |
| 1827 |
break;
|
| 1828 |
|
| 1829 |
case 10: /*FP0*/ |
| 1830 |
HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); |
| 1831 |
TBD(); |
| 1832 |
break;
|
| 1833 |
|
| 1834 |
case 11: /*FP1*/ |
| 1835 |
HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); |
| 1836 |
TBD(); |
| 1837 |
break;
|
| 1838 |
|
| 1839 |
default: /*reserved*/ |
| 1840 |
RESERVED(); |
| 1841 |
break;
|
| 1842 |
} |
| 1843 |
break;
|
| 1844 |
|
| 1845 |
case 1: /*L32R*/ |
| 1846 |
gen_window_check1(dc, RRR_T); |
| 1847 |
{
|
| 1848 |
TCGv_i32 tmp = tcg_const_i32( |
| 1849 |
((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ? |
| 1850 |
0 : ((dc->pc + 3) & ~3)) + |
| 1851 |
(0xfffc0000 | (RI16_IMM16 << 2))); |
| 1852 |
|
| 1853 |
if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
|
| 1854 |
tcg_gen_add_i32(tmp, tmp, dc->litbase); |
| 1855 |
} |
| 1856 |
tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring); |
| 1857 |
tcg_temp_free(tmp); |
| 1858 |
} |
| 1859 |
break;
|
| 1860 |
|
| 1861 |
case 2: /*LSAI*/ |
| 1862 |
#define gen_load_store(type, shift) do { \ |
| 1863 |
TCGv_i32 addr = tcg_temp_new_i32(); \ |
| 1864 |
gen_window_check2(dc, RRI8_S, RRI8_T); \ |
| 1865 |
tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \ |
| 1866 |
if (shift) { \
|
| 1867 |
gen_load_store_alignment(dc, shift, addr, false); \
|
| 1868 |
} \ |
| 1869 |
tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ |
| 1870 |
tcg_temp_free(addr); \ |
| 1871 |
} while (0) |
| 1872 |
|
| 1873 |
switch (RRI8_R) {
|
| 1874 |
case 0: /*L8UI*/ |
| 1875 |
gen_load_store(ld8u, 0);
|
| 1876 |
break;
|
| 1877 |
|
| 1878 |
case 1: /*L16UI*/ |
| 1879 |
gen_load_store(ld16u, 1);
|
| 1880 |
break;
|
| 1881 |
|
| 1882 |
case 2: /*L32I*/ |
| 1883 |
gen_load_store(ld32u, 2);
|
| 1884 |
break;
|
| 1885 |
|
| 1886 |
case 4: /*S8I*/ |
| 1887 |
gen_load_store(st8, 0);
|
| 1888 |
break;
|
| 1889 |
|
| 1890 |
case 5: /*S16I*/ |
| 1891 |
gen_load_store(st16, 1);
|
| 1892 |
break;
|
| 1893 |
|
| 1894 |
case 6: /*S32I*/ |
| 1895 |
gen_load_store(st32, 2);
|
| 1896 |
break;
|
| 1897 |
|
| 1898 |
case 7: /*CACHEc*/ |
| 1899 |
if (RRI8_T < 8) { |
| 1900 |
HAS_OPTION(XTENSA_OPTION_DCACHE); |
| 1901 |
} |
| 1902 |
|
| 1903 |
switch (RRI8_T) {
|
| 1904 |
case 0: /*DPFRc*/ |
| 1905 |
break;
|
| 1906 |
|
| 1907 |
case 1: /*DPFWc*/ |
| 1908 |
break;
|
| 1909 |
|
| 1910 |
case 2: /*DPFROc*/ |
| 1911 |
break;
|
| 1912 |
|
| 1913 |
case 3: /*DPFWOc*/ |
| 1914 |
break;
|
| 1915 |
|
| 1916 |
case 4: /*DHWBc*/ |
| 1917 |
break;
|
| 1918 |
|
| 1919 |
case 5: /*DHWBIc*/ |
| 1920 |
break;
|
| 1921 |
|
| 1922 |
case 6: /*DHIc*/ |
| 1923 |
break;
|
| 1924 |
|
| 1925 |
case 7: /*DIIc*/ |
| 1926 |
break;
|
| 1927 |
|
| 1928 |
case 8: /*DCEc*/ |
| 1929 |
switch (OP1) {
|
| 1930 |
case 0: /*DPFLl*/ |
| 1931 |
HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); |
| 1932 |
break;
|
| 1933 |
|
| 1934 |
case 2: /*DHUl*/ |
| 1935 |
HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); |
| 1936 |
break;
|
| 1937 |
|
| 1938 |
case 3: /*DIUl*/ |
| 1939 |
HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); |
| 1940 |
break;
|
| 1941 |
|
| 1942 |
case 4: /*DIWBc*/ |
| 1943 |
HAS_OPTION(XTENSA_OPTION_DCACHE); |
| 1944 |
break;
|
| 1945 |
|
| 1946 |
case 5: /*DIWBIc*/ |
| 1947 |
HAS_OPTION(XTENSA_OPTION_DCACHE); |
| 1948 |
break;
|
| 1949 |
|
| 1950 |
default: /*reserved*/ |
| 1951 |
RESERVED(); |
| 1952 |
break;
|
| 1953 |
|
| 1954 |
} |
| 1955 |
break;
|
| 1956 |
|
| 1957 |
case 12: /*IPFc*/ |
| 1958 |
HAS_OPTION(XTENSA_OPTION_ICACHE); |
| 1959 |
break;
|
| 1960 |
|
| 1961 |
case 13: /*ICEc*/ |
| 1962 |
switch (OP1) {
|
| 1963 |
case 0: /*IPFLl*/ |
| 1964 |
HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); |
| 1965 |
break;
|
| 1966 |
|
| 1967 |
case 2: /*IHUl*/ |
| 1968 |
HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); |
| 1969 |
break;
|
| 1970 |
|
| 1971 |
case 3: /*IIUl*/ |
| 1972 |
HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); |
| 1973 |
break;
|
| 1974 |
|
| 1975 |
default: /*reserved*/ |
| 1976 |
RESERVED(); |
| 1977 |
break;
|
| 1978 |
} |
| 1979 |
break;
|
| 1980 |
|
| 1981 |
case 14: /*IHIc*/ |
| 1982 |
HAS_OPTION(XTENSA_OPTION_ICACHE); |
| 1983 |
break;
|
| 1984 |
|
| 1985 |
case 15: /*IIIc*/ |
| 1986 |
HAS_OPTION(XTENSA_OPTION_ICACHE); |
| 1987 |
break;
|
| 1988 |
|
| 1989 |
default: /*reserved*/ |
| 1990 |
RESERVED(); |
| 1991 |
break;
|
| 1992 |
} |
| 1993 |
break;
|
| 1994 |
|
| 1995 |
case 9: /*L16SI*/ |
| 1996 |
gen_load_store(ld16s, 1);
|
| 1997 |
break;
|
| 1998 |
#undef gen_load_store
|
| 1999 |
|
| 2000 |
case 10: /*MOVI*/ |
| 2001 |
gen_window_check1(dc, RRI8_T); |
| 2002 |
tcg_gen_movi_i32(cpu_R[RRI8_T], |
| 2003 |
RRI8_IMM8 | (RRI8_S << 8) |
|
| 2004 |
((RRI8_S & 0x8) ? 0xfffff000 : 0)); |
| 2005 |
break;
|
| 2006 |
|
| 2007 |
#define gen_load_store_no_hw_align(type) do { \ |
| 2008 |
TCGv_i32 addr = tcg_temp_local_new_i32(); \ |
| 2009 |
gen_window_check2(dc, RRI8_S, RRI8_T); \ |
| 2010 |
tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); \
|
| 2011 |
gen_load_store_alignment(dc, 2, addr, true); \ |
| 2012 |
tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ |
| 2013 |
tcg_temp_free(addr); \ |
| 2014 |
} while (0) |
| 2015 |
|
| 2016 |
case 11: /*L32AIy*/ |
| 2017 |
HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); |
| 2018 |
gen_load_store_no_hw_align(ld32u); /*TODO acquire?*/
|
| 2019 |
break;
|
| 2020 |
|
| 2021 |
case 12: /*ADDI*/ |
| 2022 |
gen_window_check2(dc, RRI8_S, RRI8_T); |
| 2023 |
tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE); |
| 2024 |
break;
|
| 2025 |
|
| 2026 |
case 13: /*ADDMI*/ |
| 2027 |
gen_window_check2(dc, RRI8_S, RRI8_T); |
| 2028 |
tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE << 8);
|
| 2029 |
break;
|
| 2030 |
|
| 2031 |
case 14: /*S32C1Iy*/ |
| 2032 |
HAS_OPTION(XTENSA_OPTION_CONDITIONAL_STORE); |
| 2033 |
gen_window_check2(dc, RRI8_S, RRI8_T); |
| 2034 |
{
|
| 2035 |
int label = gen_new_label();
|
| 2036 |
TCGv_i32 tmp = tcg_temp_local_new_i32(); |
| 2037 |
TCGv_i32 addr = tcg_temp_local_new_i32(); |
| 2038 |
|
| 2039 |
tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]); |
| 2040 |
tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
|
| 2041 |
gen_load_store_alignment(dc, 2, addr, true); |
| 2042 |
tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring); |
| 2043 |
tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T], |
| 2044 |
cpu_SR[SCOMPARE1], label); |
| 2045 |
|
| 2046 |
tcg_gen_qemu_st32(tmp, addr, dc->cring); |
| 2047 |
|
| 2048 |
gen_set_label(label); |
| 2049 |
tcg_temp_free(addr); |
| 2050 |
tcg_temp_free(tmp); |
| 2051 |
} |
| 2052 |
break;
|
| 2053 |
|
| 2054 |
case 15: /*S32RIy*/ |
| 2055 |
HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); |
| 2056 |
gen_load_store_no_hw_align(st32); /*TODO release?*/
|
| 2057 |
break;
|
| 2058 |
#undef gen_load_store_no_hw_align
|
| 2059 |
|
| 2060 |
default: /*reserved*/ |
| 2061 |
RESERVED(); |
| 2062 |
break;
|
| 2063 |
} |
| 2064 |
break;
|
| 2065 |
|
| 2066 |
case 3: /*LSCIp*/ |
| 2067 |
HAS_OPTION(XTENSA_OPTION_COPROCESSOR); |
| 2068 |
TBD(); |
| 2069 |
break;
|
| 2070 |
|
| 2071 |
case 4: /*MAC16d*/ |
| 2072 |
HAS_OPTION(XTENSA_OPTION_MAC16); |
| 2073 |
{
|
| 2074 |
enum {
|
| 2075 |
MAC16_UMUL = 0x0,
|
| 2076 |
MAC16_MUL = 0x4,
|
| 2077 |
MAC16_MULA = 0x8,
|
| 2078 |
MAC16_MULS = 0xc,
|
| 2079 |
MAC16_NONE = 0xf,
|
| 2080 |
} op = OP1 & 0xc;
|
| 2081 |
bool is_m1_sr = (OP2 & 0x3) == 2; |
| 2082 |
bool is_m2_sr = (OP2 & 0xc) == 0; |
| 2083 |
uint32_t ld_offset = 0;
|
| 2084 |
|
| 2085 |
if (OP2 > 9) { |
| 2086 |
RESERVED(); |
| 2087 |
} |
| 2088 |
|
| 2089 |
switch (OP2 & 2) { |
| 2090 |
case 0: /*MACI?/MACC?*/ |
| 2091 |
is_m1_sr = true;
|
| 2092 |
ld_offset = (OP2 & 1) ? -4 : 4; |
| 2093 |
|
| 2094 |
if (OP2 >= 8) { /*MACI/MACC*/ |
| 2095 |
if (OP1 == 0) { /*LDINC/LDDEC*/ |
| 2096 |
op = MAC16_NONE; |
| 2097 |
} else {
|
| 2098 |
RESERVED(); |
| 2099 |
} |
| 2100 |
} else if (op != MAC16_MULA) { /*MULA.*.*.LDINC/LDDEC*/ |
| 2101 |
RESERVED(); |
| 2102 |
} |
| 2103 |
break;
|
| 2104 |
|
| 2105 |
case 2: /*MACD?/MACA?*/ |
| 2106 |
if (op == MAC16_UMUL && OP2 != 7) { /*UMUL only in MACAA*/ |
| 2107 |
RESERVED(); |
| 2108 |
} |
| 2109 |
break;
|
| 2110 |
} |
| 2111 |
|
| 2112 |
if (op != MAC16_NONE) {
|
| 2113 |
if (!is_m1_sr) {
|
| 2114 |
gen_window_check1(dc, RRR_S); |
| 2115 |
} |
| 2116 |
if (!is_m2_sr) {
|
| 2117 |
gen_window_check1(dc, RRR_T); |
| 2118 |
} |
| 2119 |
} |
| 2120 |
|
| 2121 |
{
|
| 2122 |
TCGv_i32 vaddr = tcg_temp_new_i32(); |
| 2123 |
TCGv_i32 mem32 = tcg_temp_new_i32(); |
| 2124 |
|
| 2125 |
if (ld_offset) {
|
| 2126 |
gen_window_check1(dc, RRR_S); |
| 2127 |
tcg_gen_addi_i32(vaddr, cpu_R[RRR_S], ld_offset); |
| 2128 |
gen_load_store_alignment(dc, 2, vaddr, false); |
| 2129 |
tcg_gen_qemu_ld32u(mem32, vaddr, dc->cring); |
| 2130 |
} |
| 2131 |
if (op != MAC16_NONE) {
|
| 2132 |
TCGv_i32 m1 = gen_mac16_m( |
| 2133 |
is_m1_sr ? cpu_SR[MR + RRR_X] : cpu_R[RRR_S], |
| 2134 |
OP1 & 1, op == MAC16_UMUL);
|
| 2135 |
TCGv_i32 m2 = gen_mac16_m( |
| 2136 |
is_m2_sr ? cpu_SR[MR + 2 + RRR_Y] : cpu_R[RRR_T],
|
| 2137 |
OP1 & 2, op == MAC16_UMUL);
|
| 2138 |
|
| 2139 |
if (op == MAC16_MUL || op == MAC16_UMUL) {
|
| 2140 |
tcg_gen_mul_i32(cpu_SR[ACCLO], m1, m2); |
| 2141 |
if (op == MAC16_UMUL) {
|
| 2142 |
tcg_gen_movi_i32(cpu_SR[ACCHI], 0);
|
| 2143 |
} else {
|
| 2144 |
tcg_gen_sari_i32(cpu_SR[ACCHI], cpu_SR[ACCLO], 31);
|
| 2145 |
} |
| 2146 |
} else {
|
| 2147 |
TCGv_i32 res = tcg_temp_new_i32(); |
| 2148 |
TCGv_i64 res64 = tcg_temp_new_i64(); |
| 2149 |
TCGv_i64 tmp = tcg_temp_new_i64(); |
| 2150 |
|
| 2151 |
tcg_gen_mul_i32(res, m1, m2); |
| 2152 |
tcg_gen_ext_i32_i64(res64, res); |
| 2153 |
tcg_gen_concat_i32_i64(tmp, |
| 2154 |
cpu_SR[ACCLO], cpu_SR[ACCHI]); |
| 2155 |
if (op == MAC16_MULA) {
|
| 2156 |
tcg_gen_add_i64(tmp, tmp, res64); |
| 2157 |
} else {
|
| 2158 |
tcg_gen_sub_i64(tmp, tmp, res64); |
| 2159 |
} |
| 2160 |
tcg_gen_trunc_i64_i32(cpu_SR[ACCLO], tmp); |
| 2161 |
tcg_gen_shri_i64(tmp, tmp, 32);
|
| 2162 |
tcg_gen_trunc_i64_i32(cpu_SR[ACCHI], tmp); |
| 2163 |
tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]); |
| 2164 |
|
| 2165 |
tcg_temp_free(res); |
| 2166 |
tcg_temp_free_i64(res64); |
| 2167 |
tcg_temp_free_i64(tmp); |
| 2168 |
} |
| 2169 |
tcg_temp_free(m1); |
| 2170 |
tcg_temp_free(m2); |
| 2171 |
} |
| 2172 |
if (ld_offset) {
|
| 2173 |
tcg_gen_mov_i32(cpu_R[RRR_S], vaddr); |
| 2174 |
tcg_gen_mov_i32(cpu_SR[MR + RRR_W], mem32); |
| 2175 |
} |
| 2176 |
tcg_temp_free(vaddr); |
| 2177 |
tcg_temp_free(mem32); |
| 2178 |
} |
| 2179 |
} |
| 2180 |
break;
|
| 2181 |
|
| 2182 |
case 5: /*CALLN*/ |
| 2183 |
switch (CALL_N) {
|
| 2184 |
case 0: /*CALL0*/ |
| 2185 |
tcg_gen_movi_i32(cpu_R[0], dc->next_pc);
|
| 2186 |
gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); |
| 2187 |
break;
|
| 2188 |
|
| 2189 |
case 1: /*CALL4w*/ |
| 2190 |
case 2: /*CALL8w*/ |
| 2191 |
case 3: /*CALL12w*/ |
| 2192 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 2193 |
gen_window_check1(dc, CALL_N << 2);
|
| 2194 |
gen_callwi(dc, CALL_N, |
| 2195 |
(dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); |
| 2196 |
break;
|
| 2197 |
} |
| 2198 |
break;
|
| 2199 |
|
| 2200 |
case 6: /*SI*/ |
| 2201 |
switch (CALL_N) {
|
| 2202 |
case 0: /*J*/ |
| 2203 |
gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0); |
| 2204 |
break;
|
| 2205 |
|
| 2206 |
case 1: /*BZ*/ |
| 2207 |
gen_window_check1(dc, BRI12_S); |
| 2208 |
{
|
| 2209 |
static const TCGCond cond[] = { |
| 2210 |
TCG_COND_EQ, /*BEQZ*/
|
| 2211 |
TCG_COND_NE, /*BNEZ*/
|
| 2212 |
TCG_COND_LT, /*BLTZ*/
|
| 2213 |
TCG_COND_GE, /*BGEZ*/
|
| 2214 |
}; |
| 2215 |
|
| 2216 |
gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0, |
| 2217 |
4 + BRI12_IMM12_SE);
|
| 2218 |
} |
| 2219 |
break;
|
| 2220 |
|
| 2221 |
case 2: /*BI0*/ |
| 2222 |
gen_window_check1(dc, BRI8_S); |
| 2223 |
{
|
| 2224 |
static const TCGCond cond[] = { |
| 2225 |
TCG_COND_EQ, /*BEQI*/
|
| 2226 |
TCG_COND_NE, /*BNEI*/
|
| 2227 |
TCG_COND_LT, /*BLTI*/
|
| 2228 |
TCG_COND_GE, /*BGEI*/
|
| 2229 |
}; |
| 2230 |
|
| 2231 |
gen_brcondi(dc, cond[BRI8_M & 3],
|
| 2232 |
cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE);
|
| 2233 |
} |
| 2234 |
break;
|
| 2235 |
|
| 2236 |
case 3: /*BI1*/ |
| 2237 |
switch (BRI8_M) {
|
| 2238 |
case 0: /*ENTRYw*/ |
| 2239 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 2240 |
{
|
| 2241 |
TCGv_i32 pc = tcg_const_i32(dc->pc); |
| 2242 |
TCGv_i32 s = tcg_const_i32(BRI12_S); |
| 2243 |
TCGv_i32 imm = tcg_const_i32(BRI12_IMM12); |
| 2244 |
gen_advance_ccount(dc); |
| 2245 |
gen_helper_entry(pc, s, imm); |
| 2246 |
tcg_temp_free(imm); |
| 2247 |
tcg_temp_free(s); |
| 2248 |
tcg_temp_free(pc); |
| 2249 |
reset_used_window(dc); |
| 2250 |
} |
| 2251 |
break;
|
| 2252 |
|
| 2253 |
case 1: /*B1*/ |
| 2254 |
switch (BRI8_R) {
|
| 2255 |
case 0: /*BFp*/ |
| 2256 |
case 1: /*BTp*/ |
| 2257 |
HAS_OPTION(XTENSA_OPTION_BOOLEAN); |
| 2258 |
{
|
| 2259 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2260 |
tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRI8_S);
|
| 2261 |
gen_brcondi(dc, |
| 2262 |
BRI8_R == 1 ? TCG_COND_NE : TCG_COND_EQ,
|
| 2263 |
tmp, 0, 4 + RRI8_IMM8_SE); |
| 2264 |
tcg_temp_free(tmp); |
| 2265 |
} |
| 2266 |
break;
|
| 2267 |
|
| 2268 |
case 8: /*LOOP*/ |
| 2269 |
case 9: /*LOOPNEZ*/ |
| 2270 |
case 10: /*LOOPGTZ*/ |
| 2271 |
HAS_OPTION(XTENSA_OPTION_LOOP); |
| 2272 |
gen_window_check1(dc, RRI8_S); |
| 2273 |
{
|
| 2274 |
uint32_t lend = dc->pc + RRI8_IMM8 + 4;
|
| 2275 |
TCGv_i32 tmp = tcg_const_i32(lend); |
| 2276 |
|
| 2277 |
tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1);
|
| 2278 |
tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc); |
| 2279 |
gen_wsr_lend(dc, LEND, tmp); |
| 2280 |
tcg_temp_free(tmp); |
| 2281 |
|
| 2282 |
if (BRI8_R > 8) { |
| 2283 |
int label = gen_new_label();
|
| 2284 |
tcg_gen_brcondi_i32( |
| 2285 |
BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT,
|
| 2286 |
cpu_R[RRI8_S], 0, label);
|
| 2287 |
gen_jumpi(dc, lend, 1);
|
| 2288 |
gen_set_label(label); |
| 2289 |
} |
| 2290 |
|
| 2291 |
gen_jumpi(dc, dc->next_pc, 0);
|
| 2292 |
} |
| 2293 |
break;
|
| 2294 |
|
| 2295 |
default: /*reserved*/ |
| 2296 |
RESERVED(); |
| 2297 |
break;
|
| 2298 |
|
| 2299 |
} |
| 2300 |
break;
|
| 2301 |
|
| 2302 |
case 2: /*BLTUI*/ |
| 2303 |
case 3: /*BGEUI*/ |
| 2304 |
gen_window_check1(dc, BRI8_S); |
| 2305 |
gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU,
|
| 2306 |
cpu_R[BRI8_S], B4CONSTU[BRI8_R], 4 + BRI8_IMM8_SE);
|
| 2307 |
break;
|
| 2308 |
} |
| 2309 |
break;
|
| 2310 |
|
| 2311 |
} |
| 2312 |
break;
|
| 2313 |
|
| 2314 |
case 7: /*B*/ |
| 2315 |
{
|
| 2316 |
TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ;
|
| 2317 |
|
| 2318 |
switch (RRI8_R & 7) { |
| 2319 |
case 0: /*BNONE*/ /*BANY*/ |
| 2320 |
gen_window_check2(dc, RRI8_S, RRI8_T); |
| 2321 |
{
|
| 2322 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2323 |
tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); |
| 2324 |
gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); |
| 2325 |
tcg_temp_free(tmp); |
| 2326 |
} |
| 2327 |
break;
|
| 2328 |
|
| 2329 |
case 1: /*BEQ*/ /*BNE*/ |
| 2330 |
case 2: /*BLT*/ /*BGE*/ |
| 2331 |
case 3: /*BLTU*/ /*BGEU*/ |
| 2332 |
gen_window_check2(dc, RRI8_S, RRI8_T); |
| 2333 |
{
|
| 2334 |
static const TCGCond cond[] = { |
| 2335 |
[1] = TCG_COND_EQ,
|
| 2336 |
[2] = TCG_COND_LT,
|
| 2337 |
[3] = TCG_COND_LTU,
|
| 2338 |
[9] = TCG_COND_NE,
|
| 2339 |
[10] = TCG_COND_GE,
|
| 2340 |
[11] = TCG_COND_GEU,
|
| 2341 |
}; |
| 2342 |
gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T], |
| 2343 |
4 + RRI8_IMM8_SE);
|
| 2344 |
} |
| 2345 |
break;
|
| 2346 |
|
| 2347 |
case 4: /*BALL*/ /*BNALL*/ |
| 2348 |
gen_window_check2(dc, RRI8_S, RRI8_T); |
| 2349 |
{
|
| 2350 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2351 |
tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); |
| 2352 |
gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T], |
| 2353 |
4 + RRI8_IMM8_SE);
|
| 2354 |
tcg_temp_free(tmp); |
| 2355 |
} |
| 2356 |
break;
|
| 2357 |
|
| 2358 |
case 5: /*BBC*/ /*BBS*/ |
| 2359 |
gen_window_check2(dc, RRI8_S, RRI8_T); |
| 2360 |
{
|
| 2361 |
TCGv_i32 bit = tcg_const_i32(1);
|
| 2362 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2363 |
tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f);
|
| 2364 |
tcg_gen_shl_i32(bit, bit, tmp); |
| 2365 |
tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit); |
| 2366 |
gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); |
| 2367 |
tcg_temp_free(tmp); |
| 2368 |
tcg_temp_free(bit); |
| 2369 |
} |
| 2370 |
break;
|
| 2371 |
|
| 2372 |
case 6: /*BBCI*/ /*BBSI*/ |
| 2373 |
case 7: |
| 2374 |
gen_window_check1(dc, RRI8_S); |
| 2375 |
{
|
| 2376 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
| 2377 |
tcg_gen_andi_i32(tmp, cpu_R[RRI8_S], |
| 2378 |
1 << (((RRI8_R & 1) << 4) | RRI8_T)); |
| 2379 |
gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); |
| 2380 |
tcg_temp_free(tmp); |
| 2381 |
} |
| 2382 |
break;
|
| 2383 |
|
| 2384 |
} |
| 2385 |
} |
| 2386 |
break;
|
| 2387 |
|
| 2388 |
#define gen_narrow_load_store(type) do { \ |
| 2389 |
TCGv_i32 addr = tcg_temp_new_i32(); \ |
| 2390 |
gen_window_check2(dc, RRRN_S, RRRN_T); \ |
| 2391 |
tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \
|
| 2392 |
gen_load_store_alignment(dc, 2, addr, false); \ |
| 2393 |
tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \ |
| 2394 |
tcg_temp_free(addr); \ |
| 2395 |
} while (0) |
| 2396 |
|
| 2397 |
case 8: /*L32I.Nn*/ |
| 2398 |
gen_narrow_load_store(ld32u); |
| 2399 |
break;
|
| 2400 |
|
| 2401 |
case 9: /*S32I.Nn*/ |
| 2402 |
gen_narrow_load_store(st32); |
| 2403 |
break;
|
| 2404 |
#undef gen_narrow_load_store
|
| 2405 |
|
| 2406 |
case 10: /*ADD.Nn*/ |
| 2407 |
gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T); |
| 2408 |
tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]); |
| 2409 |
break;
|
| 2410 |
|
| 2411 |
case 11: /*ADDI.Nn*/ |
| 2412 |
gen_window_check2(dc, RRRN_R, RRRN_S); |
| 2413 |
tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], RRRN_T ? RRRN_T : -1);
|
| 2414 |
break;
|
| 2415 |
|
| 2416 |
case 12: /*ST2n*/ |
| 2417 |
gen_window_check1(dc, RRRN_S); |
| 2418 |
if (RRRN_T < 8) { /*MOVI.Nn*/ |
| 2419 |
tcg_gen_movi_i32(cpu_R[RRRN_S], |
| 2420 |
RRRN_R | (RRRN_T << 4) |
|
| 2421 |
((RRRN_T & 6) == 6 ? 0xffffff80 : 0)); |
| 2422 |
} else { /*BEQZ.Nn*/ /*BNEZ.Nn*/ |
| 2423 |
TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ;
|
| 2424 |
|
| 2425 |
gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0,
|
| 2426 |
4 + (RRRN_R | ((RRRN_T & 3) << 4))); |
| 2427 |
} |
| 2428 |
break;
|
| 2429 |
|
| 2430 |
case 13: /*ST3n*/ |
| 2431 |
switch (RRRN_R) {
|
| 2432 |
case 0: /*MOV.Nn*/ |
| 2433 |
gen_window_check2(dc, RRRN_S, RRRN_T); |
| 2434 |
tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]); |
| 2435 |
break;
|
| 2436 |
|
| 2437 |
case 15: /*S3*/ |
| 2438 |
switch (RRRN_T) {
|
| 2439 |
case 0: /*RET.Nn*/ |
| 2440 |
gen_jump(dc, cpu_R[0]);
|
| 2441 |
break;
|
| 2442 |
|
| 2443 |
case 1: /*RETW.Nn*/ |
| 2444 |
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); |
| 2445 |
{
|
| 2446 |
TCGv_i32 tmp = tcg_const_i32(dc->pc); |
| 2447 |
gen_advance_ccount(dc); |
| 2448 |
gen_helper_retw(tmp, tmp); |
| 2449 |
gen_jump(dc, tmp); |
| 2450 |
tcg_temp_free(tmp); |
| 2451 |
} |
| 2452 |
break;
|
| 2453 |
|
| 2454 |
case 2: /*BREAK.Nn*/ |
| 2455 |
HAS_OPTION(XTENSA_OPTION_DEBUG); |
| 2456 |
if (dc->debug) {
|
| 2457 |
gen_debug_exception(dc, DEBUGCAUSE_BN); |
| 2458 |
} |
| 2459 |
break;
|
| 2460 |
|
| 2461 |
case 3: /*NOP.Nn*/ |
| 2462 |
break;
|
| 2463 |
|
| 2464 |
case 6: /*ILL.Nn*/ |
| 2465 |
gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); |
| 2466 |
break;
|
| 2467 |
|
| 2468 |
default: /*reserved*/ |
| 2469 |
RESERVED(); |
| 2470 |
break;
|
| 2471 |
} |
| 2472 |
break;
|
| 2473 |
|
| 2474 |
default: /*reserved*/ |
| 2475 |
RESERVED(); |
| 2476 |
break;
|
| 2477 |
} |
| 2478 |
break;
|
| 2479 |
|
| 2480 |
default: /*reserved*/ |
| 2481 |
RESERVED(); |
| 2482 |
break;
|
| 2483 |
} |
| 2484 |
|
| 2485 |
gen_check_loop_end(dc, 0);
|
| 2486 |
dc->pc = dc->next_pc; |
| 2487 |
|
| 2488 |
return;
|
| 2489 |
|
| 2490 |
invalid_opcode:
|
| 2491 |
qemu_log("INVALID(pc = %08x)\n", dc->pc);
|
| 2492 |
gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); |
| 2493 |
#undef HAS_OPTION
|
| 2494 |
} |
| 2495 |
|
| 2496 |
static void check_breakpoint(CPUXtensaState *env, DisasContext *dc) |
| 2497 |
{
|
| 2498 |
CPUBreakpoint *bp; |
| 2499 |
|
| 2500 |
if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
|
| 2501 |
QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
|
| 2502 |
if (bp->pc == dc->pc) {
|
| 2503 |
tcg_gen_movi_i32(cpu_pc, dc->pc); |
| 2504 |
gen_exception(dc, EXCP_DEBUG); |
| 2505 |
dc->is_jmp = DISAS_UPDATE; |
| 2506 |
} |
| 2507 |
} |
| 2508 |
} |
| 2509 |
} |
| 2510 |
|
| 2511 |
static void gen_ibreak_check(CPUXtensaState *env, DisasContext *dc) |
| 2512 |
{
|
| 2513 |
unsigned i;
|
| 2514 |
|
| 2515 |
for (i = 0; i < dc->config->nibreak; ++i) { |
| 2516 |
if ((env->sregs[IBREAKENABLE] & (1 << i)) && |
| 2517 |
env->sregs[IBREAKA + i] == dc->pc) {
|
| 2518 |
gen_debug_exception(dc, DEBUGCAUSE_IB); |
| 2519 |
break;
|
| 2520 |
} |
| 2521 |
} |
| 2522 |
} |
| 2523 |
|
| 2524 |
static void gen_intermediate_code_internal( |
| 2525 |
CPUXtensaState *env, TranslationBlock *tb, int search_pc)
|
| 2526 |
{
|
| 2527 |
DisasContext dc; |
| 2528 |
int insn_count = 0; |
| 2529 |
int j, lj = -1; |
| 2530 |
uint16_t *gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| 2531 |
int max_insns = tb->cflags & CF_COUNT_MASK;
|
| 2532 |
uint32_t pc_start = tb->pc; |
| 2533 |
uint32_t next_page_start = |
| 2534 |
(pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; |
| 2535 |
|
| 2536 |
if (max_insns == 0) { |
| 2537 |
max_insns = CF_COUNT_MASK; |
| 2538 |
} |
| 2539 |
|
| 2540 |
dc.config = env->config; |
| 2541 |
dc.singlestep_enabled = env->singlestep_enabled; |
| 2542 |
dc.tb = tb; |
| 2543 |
dc.pc = pc_start; |
| 2544 |
dc.ring = tb->flags & XTENSA_TBFLAG_RING_MASK; |
| 2545 |
dc.cring = (tb->flags & XTENSA_TBFLAG_EXCM) ? 0 : dc.ring;
|
| 2546 |
dc.lbeg = env->sregs[LBEG]; |
| 2547 |
dc.lend = env->sregs[LEND]; |
| 2548 |
dc.is_jmp = DISAS_NEXT; |
| 2549 |
dc.ccount_delta = 0;
|
| 2550 |
dc.debug = tb->flags & XTENSA_TBFLAG_DEBUG; |
| 2551 |
dc.icount = tb->flags & XTENSA_TBFLAG_ICOUNT; |
| 2552 |
|
| 2553 |
init_litbase(&dc); |
| 2554 |
init_sar_tracker(&dc); |
| 2555 |
reset_used_window(&dc); |
| 2556 |
if (dc.icount) {
|
| 2557 |
dc.next_icount = tcg_temp_local_new_i32(); |
| 2558 |
} |
| 2559 |
|
| 2560 |
gen_icount_start(); |
| 2561 |
|
| 2562 |
if (env->singlestep_enabled && env->exception_taken) {
|
| 2563 |
env->exception_taken = 0;
|
| 2564 |
tcg_gen_movi_i32(cpu_pc, dc.pc); |
| 2565 |
gen_exception(&dc, EXCP_DEBUG); |
| 2566 |
} |
| 2567 |
|
| 2568 |
do {
|
| 2569 |
check_breakpoint(env, &dc); |
| 2570 |
|
| 2571 |
if (search_pc) {
|
| 2572 |
j = gen_opc_ptr - gen_opc_buf; |
| 2573 |
if (lj < j) {
|
| 2574 |
lj++; |
| 2575 |
while (lj < j) {
|
| 2576 |
gen_opc_instr_start[lj++] = 0;
|
| 2577 |
} |
| 2578 |
} |
| 2579 |
gen_opc_pc[lj] = dc.pc; |
| 2580 |
gen_opc_instr_start[lj] = 1;
|
| 2581 |
gen_opc_icount[lj] = insn_count; |
| 2582 |
} |
| 2583 |
|
| 2584 |
if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) {
|
| 2585 |
tcg_gen_debug_insn_start(dc.pc); |
| 2586 |
} |
| 2587 |
|
| 2588 |
++dc.ccount_delta; |
| 2589 |
|
| 2590 |
if (insn_count + 1 == max_insns && (tb->cflags & CF_LAST_IO)) { |
| 2591 |
gen_io_start(); |
| 2592 |
} |
| 2593 |
|
| 2594 |
if (dc.icount) {
|
| 2595 |
int label = gen_new_label();
|
| 2596 |
|
| 2597 |
tcg_gen_addi_i32(dc.next_icount, cpu_SR[ICOUNT], 1);
|
| 2598 |
tcg_gen_brcondi_i32(TCG_COND_NE, dc.next_icount, 0, label);
|
| 2599 |
tcg_gen_mov_i32(dc.next_icount, cpu_SR[ICOUNT]); |
| 2600 |
if (dc.debug) {
|
| 2601 |
gen_debug_exception(&dc, DEBUGCAUSE_IC); |
| 2602 |
} |
| 2603 |
gen_set_label(label); |
| 2604 |
} |
| 2605 |
|
| 2606 |
if (dc.debug) {
|
| 2607 |
gen_ibreak_check(env, &dc); |
| 2608 |
} |
| 2609 |
|
| 2610 |
disas_xtensa_insn(&dc); |
| 2611 |
++insn_count; |
| 2612 |
if (dc.icount) {
|
| 2613 |
tcg_gen_mov_i32(cpu_SR[ICOUNT], dc.next_icount); |
| 2614 |
} |
| 2615 |
if (env->singlestep_enabled) {
|
| 2616 |
tcg_gen_movi_i32(cpu_pc, dc.pc); |
| 2617 |
gen_exception(&dc, EXCP_DEBUG); |
| 2618 |
break;
|
| 2619 |
} |
| 2620 |
} while (dc.is_jmp == DISAS_NEXT &&
|
| 2621 |
insn_count < max_insns && |
| 2622 |
dc.pc < next_page_start && |
| 2623 |
gen_opc_ptr < gen_opc_end); |
| 2624 |
|
| 2625 |
reset_litbase(&dc); |
| 2626 |
reset_sar_tracker(&dc); |
| 2627 |
if (dc.icount) {
|
| 2628 |
tcg_temp_free(dc.next_icount); |
| 2629 |
} |
| 2630 |
|
| 2631 |
if (tb->cflags & CF_LAST_IO) {
|
| 2632 |
gen_io_end(); |
| 2633 |
} |
| 2634 |
|
| 2635 |
if (dc.is_jmp == DISAS_NEXT) {
|
| 2636 |
gen_jumpi(&dc, dc.pc, 0);
|
| 2637 |
} |
| 2638 |
gen_icount_end(tb, insn_count); |
| 2639 |
*gen_opc_ptr = INDEX_op_end; |
| 2640 |
|
| 2641 |
if (!search_pc) {
|
| 2642 |
tb->size = dc.pc - pc_start; |
| 2643 |
tb->icount = insn_count; |
| 2644 |
} |
| 2645 |
} |
| 2646 |
|
| 2647 |
void gen_intermediate_code(CPUXtensaState *env, TranslationBlock *tb)
|
| 2648 |
{
|
| 2649 |
gen_intermediate_code_internal(env, tb, 0);
|
| 2650 |
} |
| 2651 |
|
| 2652 |
void gen_intermediate_code_pc(CPUXtensaState *env, TranslationBlock *tb)
|
| 2653 |
{
|
| 2654 |
gen_intermediate_code_internal(env, tb, 1);
|
| 2655 |
} |
| 2656 |
|
| 2657 |
void cpu_dump_state(CPUXtensaState *env, FILE *f, fprintf_function cpu_fprintf,
|
| 2658 |
int flags)
|
| 2659 |
{
|
| 2660 |
int i, j;
|
| 2661 |
|
| 2662 |
cpu_fprintf(f, "PC=%08x\n\n", env->pc);
|
| 2663 |
|
| 2664 |
for (i = j = 0; i < 256; ++i) { |
| 2665 |
if (sregnames[i]) {
|
| 2666 |
cpu_fprintf(f, "%s=%08x%c", sregnames[i], env->sregs[i],
|
| 2667 |
(j++ % 4) == 3 ? '\n' : ' '); |
| 2668 |
} |
| 2669 |
} |
| 2670 |
|
| 2671 |
cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); |
| 2672 |
|
| 2673 |
for (i = j = 0; i < 256; ++i) { |
| 2674 |
if (uregnames[i]) {
|
| 2675 |
cpu_fprintf(f, "%s=%08x%c", uregnames[i], env->uregs[i],
|
| 2676 |
(j++ % 4) == 3 ? '\n' : ' '); |
| 2677 |
} |
| 2678 |
} |
| 2679 |
|
| 2680 |
cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); |
| 2681 |
|
| 2682 |
for (i = 0; i < 16; ++i) { |
| 2683 |
cpu_fprintf(f, "A%02d=%08x%c", i, env->regs[i],
|
| 2684 |
(i % 4) == 3 ? '\n' : ' '); |
| 2685 |
} |
| 2686 |
|
| 2687 |
cpu_fprintf(f, "\n");
|
| 2688 |
|
| 2689 |
for (i = 0; i < env->config->nareg; ++i) { |
| 2690 |
cpu_fprintf(f, "AR%02d=%08x%c", i, env->phys_regs[i],
|
| 2691 |
(i % 4) == 3 ? '\n' : ' '); |
| 2692 |
} |
| 2693 |
} |
| 2694 |
|
| 2695 |
void restore_state_to_opc(CPUXtensaState *env, TranslationBlock *tb, int pc_pos) |
| 2696 |
{
|
| 2697 |
env->pc = gen_opc_pc[pc_pos]; |
| 2698 |
} |