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/*
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* SH4 translation
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*
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* Copyright (c) 2005 Samuel Tardieu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
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*/
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#include <stdarg.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <inttypes.h> |
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#include <assert.h> |
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#define DEBUG_DISAS
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#define SH4_DEBUG_DISAS
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//#define SH4_SINGLE_STEP
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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-common.h" |
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#include "helper.h" |
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#define GEN_HELPER 1 |
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#include "helper.h" |
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typedef struct DisasContext { |
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struct TranslationBlock *tb;
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target_ulong pc; |
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uint32_t sr; |
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uint32_t fpscr; |
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uint16_t opcode; |
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uint32_t flags; |
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int bstate;
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int memidx;
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uint32_t delayed_pc; |
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int singlestep_enabled;
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uint32_t features; |
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} DisasContext; |
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#if defined(CONFIG_USER_ONLY)
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#define IS_USER(ctx) 1 |
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#else
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#define IS_USER(ctx) (!(ctx->sr & SR_MD))
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#endif
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enum {
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BS_NONE = 0, /* We go out of the TB without reaching a branch or an |
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* exception condition
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*/
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BS_STOP = 1, /* We want to stop translation for any reason */ |
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BS_BRANCH = 2, /* We reached a branch condition */ |
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BS_EXCP = 3, /* We reached an exception condition */ |
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}; |
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/* global register indexes */
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static TCGv_ptr cpu_env;
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static TCGv cpu_gregs[24]; |
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static TCGv cpu_pc, cpu_sr, cpu_ssr, cpu_spc, cpu_gbr;
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static TCGv cpu_vbr, cpu_sgr, cpu_dbr, cpu_mach, cpu_macl;
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static TCGv cpu_pr, cpu_fpscr, cpu_fpul;
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static TCGv cpu_fregs[32]; |
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/* internal register indexes */
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static TCGv cpu_flags, cpu_delayed_pc;
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#include "gen-icount.h" |
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static void sh4_translate_init(void) |
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{ |
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int i;
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static int done_init = 0; |
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static const char * const gregnames[24] = { |
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"R0_BANK0", "R1_BANK0", "R2_BANK0", "R3_BANK0", |
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"R4_BANK0", "R5_BANK0", "R6_BANK0", "R7_BANK0", |
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"R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15", |
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"R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1", |
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"R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1" |
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}; |
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static const char * const fregnames[32] = { |
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"FPR0_BANK0", "FPR1_BANK0", "FPR2_BANK0", "FPR3_BANK0", |
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"FPR4_BANK0", "FPR5_BANK0", "FPR6_BANK0", "FPR7_BANK0", |
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"FPR8_BANK0", "FPR9_BANK0", "FPR10_BANK0", "FPR11_BANK0", |
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"FPR12_BANK0", "FPR13_BANK0", "FPR14_BANK0", "FPR15_BANK0", |
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"FPR0_BANK1", "FPR1_BANK1", "FPR2_BANK1", "FPR3_BANK1", |
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"FPR4_BANK1", "FPR5_BANK1", "FPR6_BANK1", "FPR7_BANK1", |
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"FPR8_BANK1", "FPR9_BANK1", "FPR10_BANK1", "FPR11_BANK1", |
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"FPR12_BANK1", "FPR13_BANK1", "FPR14_BANK1", "FPR15_BANK1", |
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}; |
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if (done_init)
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return;
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cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
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for (i = 0; i < 24; i++) |
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cpu_gregs[i] = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, gregs[i]), |
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gregnames[i]); |
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cpu_pc = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, pc), "PC");
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cpu_sr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, sr), "SR");
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cpu_ssr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, ssr), "SSR");
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cpu_spc = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, spc), "SPC");
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cpu_gbr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, gbr), "GBR");
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cpu_vbr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, vbr), "VBR");
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cpu_sgr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, sgr), "SGR");
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cpu_dbr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, dbr), "DBR");
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cpu_mach = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, mach), "MACH");
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cpu_macl = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, macl), "MACL");
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cpu_pr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, pr), "PR");
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cpu_fpscr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, fpscr), "FPSCR");
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cpu_fpul = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, fpul), "FPUL");
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cpu_flags = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, flags), "_flags_");
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cpu_delayed_pc = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, delayed_pc), |
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"_delayed_pc_");
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for (i = 0; i < 32; i++) |
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cpu_fregs[i] = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUState, fregs[i]), |
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fregnames[i]); |
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/* register helpers */
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#define GEN_HELPER 2 |
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#include "helper.h" |
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done_init = 1;
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} |
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void cpu_dump_state(CPUState * env, FILE * f,
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int (*cpu_fprintf) (FILE * f, const char *fmt, ...), |
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int flags)
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{ |
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int i;
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cpu_fprintf(f, "pc=0x%08x sr=0x%08x pr=0x%08x fpscr=0x%08x\n",
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env->pc, env->sr, env->pr, env->fpscr); |
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cpu_fprintf(f, "spc=0x%08x ssr=0x%08x gbr=0x%08x vbr=0x%08x\n",
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env->spc, env->ssr, env->gbr, env->vbr); |
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cpu_fprintf(f, "sgr=0x%08x dbr=0x%08x delayed_pc=0x%08x fpul=0x%08x\n",
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env->sgr, env->dbr, env->delayed_pc, env->fpul); |
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for (i = 0; i < 24; i += 4) { |
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cpu_fprintf(f, "r%d=0x%08x r%d=0x%08x r%d=0x%08x r%d=0x%08x\n",
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i, env->gregs[i], i + 1, env->gregs[i + 1], |
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i + 2, env->gregs[i + 2], i + 3, env->gregs[i + 3]); |
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} |
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if (env->flags & DELAY_SLOT) {
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cpu_fprintf(f, "in delay slot (delayed_pc=0x%08x)\n",
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env->delayed_pc); |
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} else if (env->flags & DELAY_SLOT_CONDITIONAL) { |
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cpu_fprintf(f, "in conditional delay slot (delayed_pc=0x%08x)\n",
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env->delayed_pc); |
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} |
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} |
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static void cpu_sh4_reset(CPUSH4State * env) |
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{ |
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#if defined(CONFIG_USER_ONLY)
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env->sr = 0;
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#else
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env->sr = SR_MD | SR_RB | SR_BL | SR_I3 | SR_I2 | SR_I1 | SR_I0; |
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#endif
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env->vbr = 0;
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env->pc = 0xA0000000;
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#if defined(CONFIG_USER_ONLY)
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env->fpscr = FPSCR_PR; /* value for userspace according to the kernel */
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set_float_rounding_mode(float_round_nearest_even, &env->fp_status); /* ?! */
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#else
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env->fpscr = 0x00040001; /* CPU reset value according to SH4 manual */ |
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set_float_rounding_mode(float_round_to_zero, &env->fp_status); |
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#endif
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env->mmucr = 0;
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} |
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typedef struct { |
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const char *name; |
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int id;
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uint32_t pvr; |
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uint32_t prr; |
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uint32_t cvr; |
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uint32_t features; |
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} sh4_def_t; |
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static sh4_def_t sh4_defs[] = {
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{ |
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.name = "SH7750R",
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.id = SH_CPU_SH7750R, |
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.pvr = 0x00050000,
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.prr = 0x00000100,
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.cvr = 0x00110000,
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}, { |
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.name = "SH7751R",
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.id = SH_CPU_SH7751R, |
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.pvr = 0x04050005,
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.prr = 0x00000113,
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.cvr = 0x00110000, /* Neutered caches, should be 0x20480000 */ |
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}, { |
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.name = "SH7785",
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.id = SH_CPU_SH7785, |
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.pvr = 0x10300700,
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.prr = 0x00000200,
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.cvr = 0x71440211,
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.features = SH_FEATURE_SH4A, |
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}, |
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}; |
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static const sh4_def_t *cpu_sh4_find_by_name(const char *name) |
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{ |
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int i;
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if (strcasecmp(name, "any") == 0) |
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return &sh4_defs[0]; |
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for (i = 0; i < ARRAY_SIZE(sh4_defs); i++) |
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if (strcasecmp(name, sh4_defs[i].name) == 0) |
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return &sh4_defs[i];
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return NULL; |
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} |
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void sh4_cpu_list(FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...)) |
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{ |
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int i;
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for (i = 0; i < ARRAY_SIZE(sh4_defs); i++) |
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(*cpu_fprintf)(f, "%s\n", sh4_defs[i].name);
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} |
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static void cpu_sh4_register(CPUSH4State *env, const sh4_def_t *def) |
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{ |
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env->pvr = def->pvr; |
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env->prr = def->prr; |
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env->cvr = def->cvr; |
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env->id = def->id; |
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} |
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CPUSH4State *cpu_sh4_init(const char *cpu_model) |
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{ |
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CPUSH4State *env; |
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const sh4_def_t *def;
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def = cpu_sh4_find_by_name(cpu_model); |
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if (!def)
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return NULL; |
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env = qemu_mallocz(sizeof(CPUSH4State));
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if (!env)
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return NULL; |
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env->features = def->features; |
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cpu_exec_init(env); |
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sh4_translate_init(); |
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env->cpu_model_str = cpu_model; |
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cpu_sh4_reset(env); |
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cpu_sh4_register(env, def); |
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tlb_flush(env, 1);
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return env;
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} |
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static void gen_goto_tb(DisasContext * ctx, int n, target_ulong dest) |
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{ |
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TranslationBlock *tb; |
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tb = ctx->tb; |
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if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
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!ctx->singlestep_enabled) { |
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/* Use a direct jump if in same page and singlestep not enabled */
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tcg_gen_goto_tb(n); |
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tcg_gen_movi_i32(cpu_pc, dest); |
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tcg_gen_exit_tb((long) tb + n);
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} else {
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tcg_gen_movi_i32(cpu_pc, dest); |
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if (ctx->singlestep_enabled)
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gen_helper_debug(); |
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tcg_gen_exit_tb(0);
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} |
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} |
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static void gen_jump(DisasContext * ctx) |
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{ |
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if (ctx->delayed_pc == (uint32_t) - 1) { |
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/* Target is not statically known, it comes necessarily from a
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delayed jump as immediate jump are conditinal jumps */
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tcg_gen_mov_i32(cpu_pc, cpu_delayed_pc); |
312 |
if (ctx->singlestep_enabled)
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gen_helper_debug(); |
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tcg_gen_exit_tb(0);
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} else {
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gen_goto_tb(ctx, 0, ctx->delayed_pc);
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} |
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} |
319 |
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static inline void gen_branch_slot(uint32_t delayed_pc, int t) |
321 |
{ |
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TCGv sr; |
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int label = gen_new_label();
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tcg_gen_movi_i32(cpu_delayed_pc, delayed_pc); |
325 |
sr = tcg_temp_new(); |
326 |
tcg_gen_andi_i32(sr, cpu_sr, SR_T); |
327 |
tcg_gen_brcondi_i32(TCG_COND_NE, sr, t ? SR_T : 0, label);
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tcg_gen_ori_i32(cpu_flags, cpu_flags, DELAY_SLOT_TRUE); |
329 |
gen_set_label(label); |
330 |
} |
331 |
|
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/* Immediate conditional jump (bt or bf) */
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static void gen_conditional_jump(DisasContext * ctx, |
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target_ulong ift, target_ulong ifnott) |
335 |
{ |
336 |
int l1;
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TCGv sr; |
338 |
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l1 = gen_new_label(); |
340 |
sr = tcg_temp_new(); |
341 |
tcg_gen_andi_i32(sr, cpu_sr, SR_T); |
342 |
tcg_gen_brcondi_i32(TCG_COND_EQ, sr, SR_T, l1); |
343 |
gen_goto_tb(ctx, 0, ifnott);
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gen_set_label(l1); |
345 |
gen_goto_tb(ctx, 1, ift);
|
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} |
347 |
|
348 |
/* Delayed conditional jump (bt or bf) */
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349 |
static void gen_delayed_conditional_jump(DisasContext * ctx) |
350 |
{ |
351 |
int l1;
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TCGv ds; |
353 |
|
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l1 = gen_new_label(); |
355 |
ds = tcg_temp_new(); |
356 |
tcg_gen_andi_i32(ds, cpu_flags, DELAY_SLOT_TRUE); |
357 |
tcg_gen_brcondi_i32(TCG_COND_EQ, ds, DELAY_SLOT_TRUE, l1); |
358 |
gen_goto_tb(ctx, 1, ctx->pc + 2); |
359 |
gen_set_label(l1); |
360 |
tcg_gen_andi_i32(cpu_flags, cpu_flags, ~DELAY_SLOT_TRUE); |
361 |
gen_jump(ctx); |
362 |
} |
363 |
|
364 |
static inline void gen_set_t(void) |
365 |
{ |
366 |
tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_T); |
367 |
} |
368 |
|
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static inline void gen_clr_t(void) |
370 |
{ |
371 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
372 |
} |
373 |
|
374 |
static inline void gen_cmp(int cond, TCGv t0, TCGv t1) |
375 |
{ |
376 |
int label1 = gen_new_label();
|
377 |
int label2 = gen_new_label();
|
378 |
tcg_gen_brcond_i32(cond, t1, t0, label1); |
379 |
gen_clr_t(); |
380 |
tcg_gen_br(label2); |
381 |
gen_set_label(label1); |
382 |
gen_set_t(); |
383 |
gen_set_label(label2); |
384 |
} |
385 |
|
386 |
static inline void gen_cmp_imm(int cond, TCGv t0, int32_t imm) |
387 |
{ |
388 |
int label1 = gen_new_label();
|
389 |
int label2 = gen_new_label();
|
390 |
tcg_gen_brcondi_i32(cond, t0, imm, label1); |
391 |
gen_clr_t(); |
392 |
tcg_gen_br(label2); |
393 |
gen_set_label(label1); |
394 |
gen_set_t(); |
395 |
gen_set_label(label2); |
396 |
} |
397 |
|
398 |
static inline void gen_store_flags(uint32_t flags) |
399 |
{ |
400 |
tcg_gen_andi_i32(cpu_flags, cpu_flags, DELAY_SLOT_TRUE); |
401 |
tcg_gen_ori_i32(cpu_flags, cpu_flags, flags); |
402 |
} |
403 |
|
404 |
static inline void gen_copy_bit_i32(TCGv t0, int p0, TCGv t1, int p1) |
405 |
{ |
406 |
TCGv tmp = tcg_temp_new(); |
407 |
|
408 |
p0 &= 0x1f;
|
409 |
p1 &= 0x1f;
|
410 |
|
411 |
tcg_gen_andi_i32(tmp, t1, (1 << p1));
|
412 |
tcg_gen_andi_i32(t0, t0, ~(1 << p0));
|
413 |
if (p0 < p1)
|
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tcg_gen_shri_i32(tmp, tmp, p1 - p0); |
415 |
else if (p0 > p1) |
416 |
tcg_gen_shli_i32(tmp, tmp, p0 - p1); |
417 |
tcg_gen_or_i32(t0, t0, tmp); |
418 |
|
419 |
tcg_temp_free(tmp); |
420 |
} |
421 |
|
422 |
static inline void gen_load_fpr64(TCGv_i64 t, int reg) |
423 |
{ |
424 |
tcg_gen_concat_i32_i64(t, cpu_fregs[reg + 1], cpu_fregs[reg]);
|
425 |
} |
426 |
|
427 |
static inline void gen_store_fpr64 (TCGv_i64 t, int reg) |
428 |
{ |
429 |
TCGv_i32 tmp = tcg_temp_new_i32(); |
430 |
tcg_gen_trunc_i64_i32(tmp, t); |
431 |
tcg_gen_mov_i32(cpu_fregs[reg + 1], tmp);
|
432 |
tcg_gen_shri_i64(t, t, 32);
|
433 |
tcg_gen_trunc_i64_i32(tmp, t); |
434 |
tcg_gen_mov_i32(cpu_fregs[reg], tmp); |
435 |
tcg_temp_free_i32(tmp); |
436 |
} |
437 |
|
438 |
#define B3_0 (ctx->opcode & 0xf) |
439 |
#define B6_4 ((ctx->opcode >> 4) & 0x7) |
440 |
#define B7_4 ((ctx->opcode >> 4) & 0xf) |
441 |
#define B7_0 (ctx->opcode & 0xff) |
442 |
#define B7_0s ((int32_t) (int8_t) (ctx->opcode & 0xff)) |
443 |
#define B11_0s (ctx->opcode & 0x800 ? 0xfffff000 | (ctx->opcode & 0xfff) : \ |
444 |
(ctx->opcode & 0xfff))
|
445 |
#define B11_8 ((ctx->opcode >> 8) & 0xf) |
446 |
#define B15_12 ((ctx->opcode >> 12) & 0xf) |
447 |
|
448 |
#define REG(x) ((x) < 8 && (ctx->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB) ? \ |
449 |
(cpu_gregs[x + 16]) : (cpu_gregs[x]))
|
450 |
|
451 |
#define ALTREG(x) ((x) < 8 && (ctx->sr & (SR_MD | SR_RB)) != (SR_MD | SR_RB) \ |
452 |
? (cpu_gregs[x + 16]) : (cpu_gregs[x]))
|
453 |
|
454 |
#define FREG(x) (ctx->fpscr & FPSCR_FR ? (x) ^ 0x10 : (x)) |
455 |
#define XHACK(x) ((((x) & 1 ) << 4) | ((x) & 0xe)) |
456 |
#define XREG(x) (ctx->fpscr & FPSCR_FR ? XHACK(x) ^ 0x10 : XHACK(x)) |
457 |
#define DREG(x) FREG(x) /* Assumes lsb of (x) is always 0 */ |
458 |
|
459 |
#define CHECK_NOT_DELAY_SLOT \
|
460 |
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) \
|
461 |
{ \ |
462 |
tcg_gen_movi_i32(cpu_pc, ctx->pc-2); \
|
463 |
gen_helper_raise_slot_illegal_instruction(); \ |
464 |
ctx->bstate = BS_EXCP; \ |
465 |
return; \
|
466 |
} |
467 |
|
468 |
#define CHECK_PRIVILEGED \
|
469 |
if (IS_USER(ctx)) { \
|
470 |
tcg_gen_movi_i32(cpu_pc, ctx->pc); \ |
471 |
gen_helper_raise_illegal_instruction(); \ |
472 |
ctx->bstate = BS_EXCP; \ |
473 |
return; \
|
474 |
} |
475 |
|
476 |
#define CHECK_FPU_ENABLED \
|
477 |
if (ctx->flags & SR_FD) { \
|
478 |
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \
|
479 |
tcg_gen_movi_i32(cpu_pc, ctx->pc-2); \
|
480 |
gen_helper_raise_slot_fpu_disable(); \ |
481 |
} else { \
|
482 |
tcg_gen_movi_i32(cpu_pc, ctx->pc); \ |
483 |
gen_helper_raise_fpu_disable(); \ |
484 |
} \ |
485 |
ctx->bstate = BS_EXCP; \ |
486 |
return; \
|
487 |
} |
488 |
|
489 |
static void _decode_opc(DisasContext * ctx) |
490 |
{ |
491 |
#if 0
|
492 |
fprintf(stderr, "Translating opcode 0x%04x\n", ctx->opcode);
|
493 |
#endif
|
494 |
|
495 |
switch (ctx->opcode) {
|
496 |
case 0x0019: /* div0u */ |
497 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~(SR_M | SR_Q | SR_T)); |
498 |
return;
|
499 |
case 0x000b: /* rts */ |
500 |
CHECK_NOT_DELAY_SLOT |
501 |
tcg_gen_mov_i32(cpu_delayed_pc, cpu_pr); |
502 |
ctx->flags |= DELAY_SLOT; |
503 |
ctx->delayed_pc = (uint32_t) - 1;
|
504 |
return;
|
505 |
case 0x0028: /* clrmac */ |
506 |
tcg_gen_movi_i32(cpu_mach, 0);
|
507 |
tcg_gen_movi_i32(cpu_macl, 0);
|
508 |
return;
|
509 |
case 0x0048: /* clrs */ |
510 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_S); |
511 |
return;
|
512 |
case 0x0008: /* clrt */ |
513 |
gen_clr_t(); |
514 |
return;
|
515 |
case 0x0038: /* ldtlb */ |
516 |
CHECK_PRIVILEGED |
517 |
gen_helper_ldtlb(); |
518 |
return;
|
519 |
case 0x002b: /* rte */ |
520 |
CHECK_PRIVILEGED |
521 |
CHECK_NOT_DELAY_SLOT |
522 |
tcg_gen_mov_i32(cpu_sr, cpu_ssr); |
523 |
tcg_gen_mov_i32(cpu_delayed_pc, cpu_spc); |
524 |
ctx->flags |= DELAY_SLOT; |
525 |
ctx->delayed_pc = (uint32_t) - 1;
|
526 |
return;
|
527 |
case 0x0058: /* sets */ |
528 |
tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_S); |
529 |
return;
|
530 |
case 0x0018: /* sett */ |
531 |
gen_set_t(); |
532 |
return;
|
533 |
case 0xfbfd: /* frchg */ |
534 |
tcg_gen_xori_i32(cpu_fpscr, cpu_fpscr, FPSCR_FR); |
535 |
ctx->bstate = BS_STOP; |
536 |
return;
|
537 |
case 0xf3fd: /* fschg */ |
538 |
tcg_gen_xori_i32(cpu_fpscr, cpu_fpscr, FPSCR_SZ); |
539 |
ctx->bstate = BS_STOP; |
540 |
return;
|
541 |
case 0x0009: /* nop */ |
542 |
return;
|
543 |
case 0x001b: /* sleep */ |
544 |
CHECK_PRIVILEGED |
545 |
gen_helper_sleep(tcg_const_i32(ctx->pc + 2));
|
546 |
return;
|
547 |
} |
548 |
|
549 |
switch (ctx->opcode & 0xf000) { |
550 |
case 0x1000: /* mov.l Rm,@(disp,Rn) */ |
551 |
{ |
552 |
TCGv addr = tcg_temp_new(); |
553 |
tcg_gen_addi_i32(addr, REG(B11_8), B3_0 * 4);
|
554 |
tcg_gen_qemu_st32(REG(B7_4), addr, ctx->memidx); |
555 |
tcg_temp_free(addr); |
556 |
} |
557 |
return;
|
558 |
case 0x5000: /* mov.l @(disp,Rm),Rn */ |
559 |
{ |
560 |
TCGv addr = tcg_temp_new(); |
561 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 4);
|
562 |
tcg_gen_qemu_ld32s(REG(B11_8), addr, ctx->memidx); |
563 |
tcg_temp_free(addr); |
564 |
} |
565 |
return;
|
566 |
case 0xe000: /* mov #imm,Rn */ |
567 |
tcg_gen_movi_i32(REG(B11_8), B7_0s); |
568 |
return;
|
569 |
case 0x9000: /* mov.w @(disp,PC),Rn */ |
570 |
{ |
571 |
TCGv addr = tcg_const_i32(ctx->pc + 4 + B7_0 * 2); |
572 |
tcg_gen_qemu_ld16s(REG(B11_8), addr, ctx->memidx); |
573 |
tcg_temp_free(addr); |
574 |
} |
575 |
return;
|
576 |
case 0xd000: /* mov.l @(disp,PC),Rn */ |
577 |
{ |
578 |
TCGv addr = tcg_const_i32((ctx->pc + 4 + B7_0 * 4) & ~3); |
579 |
tcg_gen_qemu_ld32s(REG(B11_8), addr, ctx->memidx); |
580 |
tcg_temp_free(addr); |
581 |
} |
582 |
return;
|
583 |
case 0x7000: /* add #imm,Rn */ |
584 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), B7_0s); |
585 |
return;
|
586 |
case 0xa000: /* bra disp */ |
587 |
CHECK_NOT_DELAY_SLOT |
588 |
ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2; |
589 |
tcg_gen_movi_i32(cpu_delayed_pc, ctx->delayed_pc); |
590 |
ctx->flags |= DELAY_SLOT; |
591 |
return;
|
592 |
case 0xb000: /* bsr disp */ |
593 |
CHECK_NOT_DELAY_SLOT |
594 |
tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
|
595 |
ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2; |
596 |
tcg_gen_movi_i32(cpu_delayed_pc, ctx->delayed_pc); |
597 |
ctx->flags |= DELAY_SLOT; |
598 |
return;
|
599 |
} |
600 |
|
601 |
switch (ctx->opcode & 0xf00f) { |
602 |
case 0x6003: /* mov Rm,Rn */ |
603 |
tcg_gen_mov_i32(REG(B11_8), REG(B7_4)); |
604 |
return;
|
605 |
case 0x2000: /* mov.b Rm,@Rn */ |
606 |
tcg_gen_qemu_st8(REG(B7_4), REG(B11_8), ctx->memidx); |
607 |
return;
|
608 |
case 0x2001: /* mov.w Rm,@Rn */ |
609 |
tcg_gen_qemu_st16(REG(B7_4), REG(B11_8), ctx->memidx); |
610 |
return;
|
611 |
case 0x2002: /* mov.l Rm,@Rn */ |
612 |
tcg_gen_qemu_st32(REG(B7_4), REG(B11_8), ctx->memidx); |
613 |
return;
|
614 |
case 0x6000: /* mov.b @Rm,Rn */ |
615 |
tcg_gen_qemu_ld8s(REG(B11_8), REG(B7_4), ctx->memidx); |
616 |
return;
|
617 |
case 0x6001: /* mov.w @Rm,Rn */ |
618 |
tcg_gen_qemu_ld16s(REG(B11_8), REG(B7_4), ctx->memidx); |
619 |
return;
|
620 |
case 0x6002: /* mov.l @Rm,Rn */ |
621 |
tcg_gen_qemu_ld32s(REG(B11_8), REG(B7_4), ctx->memidx); |
622 |
return;
|
623 |
case 0x2004: /* mov.b Rm,@-Rn */ |
624 |
{ |
625 |
TCGv addr = tcg_temp_new(); |
626 |
tcg_gen_subi_i32(addr, REG(B11_8), 1);
|
627 |
tcg_gen_qemu_st8(REG(B7_4), addr, ctx->memidx); /* might cause re-execution */
|
628 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 1); /* modify register status */ |
629 |
tcg_temp_free(addr); |
630 |
} |
631 |
return;
|
632 |
case 0x2005: /* mov.w Rm,@-Rn */ |
633 |
{ |
634 |
TCGv addr = tcg_temp_new(); |
635 |
tcg_gen_subi_i32(addr, REG(B11_8), 2);
|
636 |
tcg_gen_qemu_st16(REG(B7_4), addr, ctx->memidx); |
637 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 2);
|
638 |
tcg_temp_free(addr); |
639 |
} |
640 |
return;
|
641 |
case 0x2006: /* mov.l Rm,@-Rn */ |
642 |
{ |
643 |
TCGv addr = tcg_temp_new(); |
644 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
645 |
tcg_gen_qemu_st32(REG(B7_4), addr, ctx->memidx); |
646 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
|
647 |
} |
648 |
return;
|
649 |
case 0x6004: /* mov.b @Rm+,Rn */ |
650 |
tcg_gen_qemu_ld8s(REG(B11_8), REG(B7_4), ctx->memidx); |
651 |
if ( B11_8 != B7_4 )
|
652 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 1);
|
653 |
return;
|
654 |
case 0x6005: /* mov.w @Rm+,Rn */ |
655 |
tcg_gen_qemu_ld16s(REG(B11_8), REG(B7_4), ctx->memidx); |
656 |
if ( B11_8 != B7_4 )
|
657 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 2);
|
658 |
return;
|
659 |
case 0x6006: /* mov.l @Rm+,Rn */ |
660 |
tcg_gen_qemu_ld32s(REG(B11_8), REG(B7_4), ctx->memidx); |
661 |
if ( B11_8 != B7_4 )
|
662 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
|
663 |
return;
|
664 |
case 0x0004: /* mov.b Rm,@(R0,Rn) */ |
665 |
{ |
666 |
TCGv addr = tcg_temp_new(); |
667 |
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
|
668 |
tcg_gen_qemu_st8(REG(B7_4), addr, ctx->memidx); |
669 |
tcg_temp_free(addr); |
670 |
} |
671 |
return;
|
672 |
case 0x0005: /* mov.w Rm,@(R0,Rn) */ |
673 |
{ |
674 |
TCGv addr = tcg_temp_new(); |
675 |
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
|
676 |
tcg_gen_qemu_st16(REG(B7_4), addr, ctx->memidx); |
677 |
tcg_temp_free(addr); |
678 |
} |
679 |
return;
|
680 |
case 0x0006: /* mov.l Rm,@(R0,Rn) */ |
681 |
{ |
682 |
TCGv addr = tcg_temp_new(); |
683 |
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
|
684 |
tcg_gen_qemu_st32(REG(B7_4), addr, ctx->memidx); |
685 |
tcg_temp_free(addr); |
686 |
} |
687 |
return;
|
688 |
case 0x000c: /* mov.b @(R0,Rm),Rn */ |
689 |
{ |
690 |
TCGv addr = tcg_temp_new(); |
691 |
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
|
692 |
tcg_gen_qemu_ld8s(REG(B11_8), addr, ctx->memidx); |
693 |
tcg_temp_free(addr); |
694 |
} |
695 |
return;
|
696 |
case 0x000d: /* mov.w @(R0,Rm),Rn */ |
697 |
{ |
698 |
TCGv addr = tcg_temp_new(); |
699 |
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
|
700 |
tcg_gen_qemu_ld16s(REG(B11_8), addr, ctx->memidx); |
701 |
tcg_temp_free(addr); |
702 |
} |
703 |
return;
|
704 |
case 0x000e: /* mov.l @(R0,Rm),Rn */ |
705 |
{ |
706 |
TCGv addr = tcg_temp_new(); |
707 |
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
|
708 |
tcg_gen_qemu_ld32s(REG(B11_8), addr, ctx->memidx); |
709 |
tcg_temp_free(addr); |
710 |
} |
711 |
return;
|
712 |
case 0x6008: /* swap.b Rm,Rn */ |
713 |
{ |
714 |
TCGv highw, high, low; |
715 |
highw = tcg_temp_new(); |
716 |
tcg_gen_andi_i32(highw, REG(B7_4), 0xffff0000);
|
717 |
high = tcg_temp_new(); |
718 |
tcg_gen_ext8u_i32(high, REG(B7_4)); |
719 |
tcg_gen_shli_i32(high, high, 8);
|
720 |
low = tcg_temp_new(); |
721 |
tcg_gen_shri_i32(low, REG(B7_4), 8);
|
722 |
tcg_gen_ext8u_i32(low, low); |
723 |
tcg_gen_or_i32(REG(B11_8), high, low); |
724 |
tcg_gen_or_i32(REG(B11_8), REG(B11_8), highw); |
725 |
tcg_temp_free(low); |
726 |
tcg_temp_free(high); |
727 |
} |
728 |
return;
|
729 |
case 0x6009: /* swap.w Rm,Rn */ |
730 |
{ |
731 |
TCGv high, low; |
732 |
high = tcg_temp_new(); |
733 |
tcg_gen_ext16u_i32(high, REG(B7_4)); |
734 |
tcg_gen_shli_i32(high, high, 16);
|
735 |
low = tcg_temp_new(); |
736 |
tcg_gen_shri_i32(low, REG(B7_4), 16);
|
737 |
tcg_gen_ext16u_i32(low, low); |
738 |
tcg_gen_or_i32(REG(B11_8), high, low); |
739 |
tcg_temp_free(low); |
740 |
tcg_temp_free(high); |
741 |
} |
742 |
return;
|
743 |
case 0x200d: /* xtrct Rm,Rn */ |
744 |
{ |
745 |
TCGv high, low; |
746 |
high = tcg_temp_new(); |
747 |
tcg_gen_ext16u_i32(high, REG(B7_4)); |
748 |
tcg_gen_shli_i32(high, high, 16);
|
749 |
low = tcg_temp_new(); |
750 |
tcg_gen_shri_i32(low, REG(B11_8), 16);
|
751 |
tcg_gen_ext16u_i32(low, low); |
752 |
tcg_gen_or_i32(REG(B11_8), high, low); |
753 |
tcg_temp_free(low); |
754 |
tcg_temp_free(high); |
755 |
} |
756 |
return;
|
757 |
case 0x300c: /* add Rm,Rn */ |
758 |
tcg_gen_add_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
759 |
return;
|
760 |
case 0x300e: /* addc Rm,Rn */ |
761 |
gen_helper_addc(REG(B11_8), REG(B7_4), REG(B11_8)); |
762 |
return;
|
763 |
case 0x300f: /* addv Rm,Rn */ |
764 |
gen_helper_addv(REG(B11_8), REG(B7_4), REG(B11_8)); |
765 |
return;
|
766 |
case 0x2009: /* and Rm,Rn */ |
767 |
tcg_gen_and_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
768 |
return;
|
769 |
case 0x3000: /* cmp/eq Rm,Rn */ |
770 |
gen_cmp(TCG_COND_EQ, REG(B7_4), REG(B11_8)); |
771 |
return;
|
772 |
case 0x3003: /* cmp/ge Rm,Rn */ |
773 |
gen_cmp(TCG_COND_GE, REG(B7_4), REG(B11_8)); |
774 |
return;
|
775 |
case 0x3007: /* cmp/gt Rm,Rn */ |
776 |
gen_cmp(TCG_COND_GT, REG(B7_4), REG(B11_8)); |
777 |
return;
|
778 |
case 0x3006: /* cmp/hi Rm,Rn */ |
779 |
gen_cmp(TCG_COND_GTU, REG(B7_4), REG(B11_8)); |
780 |
return;
|
781 |
case 0x3002: /* cmp/hs Rm,Rn */ |
782 |
gen_cmp(TCG_COND_GEU, REG(B7_4), REG(B11_8)); |
783 |
return;
|
784 |
case 0x200c: /* cmp/str Rm,Rn */ |
785 |
{ |
786 |
int label1 = gen_new_label();
|
787 |
int label2 = gen_new_label();
|
788 |
TCGv cmp1 = tcg_temp_local_new(); |
789 |
TCGv cmp2 = tcg_temp_local_new(); |
790 |
tcg_gen_xor_i32(cmp1, REG(B7_4), REG(B11_8)); |
791 |
tcg_gen_andi_i32(cmp2, cmp1, 0xff000000);
|
792 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cmp2, 0, label1);
|
793 |
tcg_gen_andi_i32(cmp2, cmp1, 0x00ff0000);
|
794 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cmp2, 0, label1);
|
795 |
tcg_gen_andi_i32(cmp2, cmp1, 0x0000ff00);
|
796 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cmp2, 0, label1);
|
797 |
tcg_gen_andi_i32(cmp2, cmp1, 0x000000ff);
|
798 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cmp2, 0, label1);
|
799 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
800 |
tcg_gen_br(label2); |
801 |
gen_set_label(label1); |
802 |
tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_T); |
803 |
gen_set_label(label2); |
804 |
tcg_temp_free(cmp2); |
805 |
tcg_temp_free(cmp1); |
806 |
} |
807 |
return;
|
808 |
case 0x2007: /* div0s Rm,Rn */ |
809 |
{ |
810 |
gen_copy_bit_i32(cpu_sr, 8, REG(B11_8), 31); /* SR_Q */ |
811 |
gen_copy_bit_i32(cpu_sr, 9, REG(B7_4), 31); /* SR_M */ |
812 |
TCGv val = tcg_temp_new(); |
813 |
tcg_gen_xor_i32(val, REG(B7_4), REG(B11_8)); |
814 |
gen_copy_bit_i32(cpu_sr, 0, val, 31); /* SR_T */ |
815 |
tcg_temp_free(val); |
816 |
} |
817 |
return;
|
818 |
case 0x3004: /* div1 Rm,Rn */ |
819 |
gen_helper_div1(REG(B11_8), REG(B7_4), REG(B11_8)); |
820 |
return;
|
821 |
case 0x300d: /* dmuls.l Rm,Rn */ |
822 |
{ |
823 |
TCGv_i64 tmp1 = tcg_temp_new_i64(); |
824 |
TCGv_i64 tmp2 = tcg_temp_new_i64(); |
825 |
|
826 |
tcg_gen_ext_i32_i64(tmp1, REG(B7_4)); |
827 |
tcg_gen_ext_i32_i64(tmp2, REG(B11_8)); |
828 |
tcg_gen_mul_i64(tmp1, tmp1, tmp2); |
829 |
tcg_gen_trunc_i64_i32(cpu_macl, tmp1); |
830 |
tcg_gen_shri_i64(tmp1, tmp1, 32);
|
831 |
tcg_gen_trunc_i64_i32(cpu_mach, tmp1); |
832 |
|
833 |
tcg_temp_free_i64(tmp2); |
834 |
tcg_temp_free_i64(tmp1); |
835 |
} |
836 |
return;
|
837 |
case 0x3005: /* dmulu.l Rm,Rn */ |
838 |
{ |
839 |
TCGv_i64 tmp1 = tcg_temp_new_i64(); |
840 |
TCGv_i64 tmp2 = tcg_temp_new_i64(); |
841 |
|
842 |
tcg_gen_extu_i32_i64(tmp1, REG(B7_4)); |
843 |
tcg_gen_extu_i32_i64(tmp2, REG(B11_8)); |
844 |
tcg_gen_mul_i64(tmp1, tmp1, tmp2); |
845 |
tcg_gen_trunc_i64_i32(cpu_macl, tmp1); |
846 |
tcg_gen_shri_i64(tmp1, tmp1, 32);
|
847 |
tcg_gen_trunc_i64_i32(cpu_mach, tmp1); |
848 |
|
849 |
tcg_temp_free_i64(tmp2); |
850 |
tcg_temp_free_i64(tmp1); |
851 |
} |
852 |
return;
|
853 |
case 0x600e: /* exts.b Rm,Rn */ |
854 |
tcg_gen_ext8s_i32(REG(B11_8), REG(B7_4)); |
855 |
return;
|
856 |
case 0x600f: /* exts.w Rm,Rn */ |
857 |
tcg_gen_ext16s_i32(REG(B11_8), REG(B7_4)); |
858 |
return;
|
859 |
case 0x600c: /* extu.b Rm,Rn */ |
860 |
tcg_gen_ext8u_i32(REG(B11_8), REG(B7_4)); |
861 |
return;
|
862 |
case 0x600d: /* extu.w Rm,Rn */ |
863 |
tcg_gen_ext16u_i32(REG(B11_8), REG(B7_4)); |
864 |
return;
|
865 |
case 0x000f: /* mac.l @Rm+,@Rn+ */ |
866 |
{ |
867 |
TCGv arg0, arg1; |
868 |
arg0 = tcg_temp_new(); |
869 |
tcg_gen_qemu_ld32s(arg0, REG(B7_4), ctx->memidx); |
870 |
arg1 = tcg_temp_new(); |
871 |
tcg_gen_qemu_ld32s(arg1, REG(B11_8), ctx->memidx); |
872 |
gen_helper_macl(arg0, arg1); |
873 |
tcg_temp_free(arg1); |
874 |
tcg_temp_free(arg0); |
875 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
|
876 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
877 |
} |
878 |
return;
|
879 |
case 0x400f: /* mac.w @Rm+,@Rn+ */ |
880 |
{ |
881 |
TCGv arg0, arg1; |
882 |
arg0 = tcg_temp_new(); |
883 |
tcg_gen_qemu_ld32s(arg0, REG(B7_4), ctx->memidx); |
884 |
arg1 = tcg_temp_new(); |
885 |
tcg_gen_qemu_ld32s(arg1, REG(B11_8), ctx->memidx); |
886 |
gen_helper_macw(arg0, arg1); |
887 |
tcg_temp_free(arg1); |
888 |
tcg_temp_free(arg0); |
889 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 2);
|
890 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 2);
|
891 |
} |
892 |
return;
|
893 |
case 0x0007: /* mul.l Rm,Rn */ |
894 |
tcg_gen_mul_i32(cpu_macl, REG(B7_4), REG(B11_8)); |
895 |
return;
|
896 |
case 0x200f: /* muls.w Rm,Rn */ |
897 |
{ |
898 |
TCGv arg0, arg1; |
899 |
arg0 = tcg_temp_new(); |
900 |
tcg_gen_ext16s_i32(arg0, REG(B7_4)); |
901 |
arg1 = tcg_temp_new(); |
902 |
tcg_gen_ext16s_i32(arg1, REG(B11_8)); |
903 |
tcg_gen_mul_i32(cpu_macl, arg0, arg1); |
904 |
tcg_temp_free(arg1); |
905 |
tcg_temp_free(arg0); |
906 |
} |
907 |
return;
|
908 |
case 0x200e: /* mulu.w Rm,Rn */ |
909 |
{ |
910 |
TCGv arg0, arg1; |
911 |
arg0 = tcg_temp_new(); |
912 |
tcg_gen_ext16u_i32(arg0, REG(B7_4)); |
913 |
arg1 = tcg_temp_new(); |
914 |
tcg_gen_ext16u_i32(arg1, REG(B11_8)); |
915 |
tcg_gen_mul_i32(cpu_macl, arg0, arg1); |
916 |
tcg_temp_free(arg1); |
917 |
tcg_temp_free(arg0); |
918 |
} |
919 |
return;
|
920 |
case 0x600b: /* neg Rm,Rn */ |
921 |
tcg_gen_neg_i32(REG(B11_8), REG(B7_4)); |
922 |
return;
|
923 |
case 0x600a: /* negc Rm,Rn */ |
924 |
gen_helper_negc(REG(B11_8), REG(B7_4)); |
925 |
return;
|
926 |
case 0x6007: /* not Rm,Rn */ |
927 |
tcg_gen_not_i32(REG(B11_8), REG(B7_4)); |
928 |
return;
|
929 |
case 0x200b: /* or Rm,Rn */ |
930 |
tcg_gen_or_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
931 |
return;
|
932 |
case 0x400c: /* shad Rm,Rn */ |
933 |
{ |
934 |
int label1 = gen_new_label();
|
935 |
int label2 = gen_new_label();
|
936 |
int label3 = gen_new_label();
|
937 |
int label4 = gen_new_label();
|
938 |
TCGv shift = tcg_temp_local_new(); |
939 |
tcg_gen_brcondi_i32(TCG_COND_LT, REG(B7_4), 0, label1);
|
940 |
/* Rm positive, shift to the left */
|
941 |
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
|
942 |
tcg_gen_shl_i32(REG(B11_8), REG(B11_8), shift); |
943 |
tcg_gen_br(label4); |
944 |
/* Rm negative, shift to the right */
|
945 |
gen_set_label(label1); |
946 |
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
|
947 |
tcg_gen_brcondi_i32(TCG_COND_EQ, shift, 0, label2);
|
948 |
tcg_gen_not_i32(shift, REG(B7_4)); |
949 |
tcg_gen_andi_i32(shift, shift, 0x1f);
|
950 |
tcg_gen_addi_i32(shift, shift, 1);
|
951 |
tcg_gen_sar_i32(REG(B11_8), REG(B11_8), shift); |
952 |
tcg_gen_br(label4); |
953 |
/* Rm = -32 */
|
954 |
gen_set_label(label2); |
955 |
tcg_gen_brcondi_i32(TCG_COND_LT, REG(B11_8), 0, label3);
|
956 |
tcg_gen_movi_i32(REG(B11_8), 0);
|
957 |
tcg_gen_br(label4); |
958 |
gen_set_label(label3); |
959 |
tcg_gen_movi_i32(REG(B11_8), 0xffffffff);
|
960 |
gen_set_label(label4); |
961 |
tcg_temp_free(shift); |
962 |
} |
963 |
return;
|
964 |
case 0x400d: /* shld Rm,Rn */ |
965 |
{ |
966 |
int label1 = gen_new_label();
|
967 |
int label2 = gen_new_label();
|
968 |
int label3 = gen_new_label();
|
969 |
TCGv shift = tcg_temp_local_new(); |
970 |
tcg_gen_brcondi_i32(TCG_COND_LT, REG(B7_4), 0, label1);
|
971 |
/* Rm positive, shift to the left */
|
972 |
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
|
973 |
tcg_gen_shl_i32(REG(B11_8), REG(B11_8), shift); |
974 |
tcg_gen_br(label3); |
975 |
/* Rm negative, shift to the right */
|
976 |
gen_set_label(label1); |
977 |
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
|
978 |
tcg_gen_brcondi_i32(TCG_COND_EQ, shift, 0, label2);
|
979 |
tcg_gen_not_i32(shift, REG(B7_4)); |
980 |
tcg_gen_andi_i32(shift, shift, 0x1f);
|
981 |
tcg_gen_addi_i32(shift, shift, 1);
|
982 |
tcg_gen_shr_i32(REG(B11_8), REG(B11_8), shift); |
983 |
tcg_gen_br(label3); |
984 |
/* Rm = -32 */
|
985 |
gen_set_label(label2); |
986 |
tcg_gen_movi_i32(REG(B11_8), 0);
|
987 |
gen_set_label(label3); |
988 |
tcg_temp_free(shift); |
989 |
} |
990 |
return;
|
991 |
case 0x3008: /* sub Rm,Rn */ |
992 |
tcg_gen_sub_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
993 |
return;
|
994 |
case 0x300a: /* subc Rm,Rn */ |
995 |
gen_helper_subc(REG(B11_8), REG(B7_4), REG(B11_8)); |
996 |
return;
|
997 |
case 0x300b: /* subv Rm,Rn */ |
998 |
gen_helper_subv(REG(B11_8), REG(B7_4), REG(B11_8)); |
999 |
return;
|
1000 |
case 0x2008: /* tst Rm,Rn */ |
1001 |
{ |
1002 |
TCGv val = tcg_temp_new(); |
1003 |
tcg_gen_and_i32(val, REG(B7_4), REG(B11_8)); |
1004 |
gen_cmp_imm(TCG_COND_EQ, val, 0);
|
1005 |
tcg_temp_free(val); |
1006 |
} |
1007 |
return;
|
1008 |
case 0x200a: /* xor Rm,Rn */ |
1009 |
tcg_gen_xor_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
1010 |
return;
|
1011 |
case 0xf00c: /* fmov {F,D,X}Rm,{F,D,X}Rn - FPSCR: Nothing */ |
1012 |
CHECK_FPU_ENABLED |
1013 |
if (ctx->fpscr & FPSCR_SZ) {
|
1014 |
TCGv_i64 fp = tcg_temp_new_i64(); |
1015 |
gen_load_fpr64(fp, XREG(B7_4)); |
1016 |
gen_store_fpr64(fp, XREG(B11_8)); |
1017 |
tcg_temp_free_i64(fp); |
1018 |
} else {
|
1019 |
tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
1020 |
} |
1021 |
return;
|
1022 |
case 0xf00a: /* fmov {F,D,X}Rm,@Rn - FPSCR: Nothing */ |
1023 |
CHECK_FPU_ENABLED |
1024 |
if (ctx->fpscr & FPSCR_SZ) {
|
1025 |
TCGv addr_hi = tcg_temp_new(); |
1026 |
int fr = XREG(B7_4);
|
1027 |
tcg_gen_addi_i32(addr_hi, REG(B11_8), 4);
|
1028 |
tcg_gen_qemu_st32(cpu_fregs[fr ], REG(B11_8), ctx->memidx); |
1029 |
tcg_gen_qemu_st32(cpu_fregs[fr+1], addr_hi, ctx->memidx);
|
1030 |
tcg_temp_free(addr_hi); |
1031 |
} else {
|
1032 |
tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], REG(B11_8), ctx->memidx); |
1033 |
} |
1034 |
return;
|
1035 |
case 0xf008: /* fmov @Rm,{F,D,X}Rn - FPSCR: Nothing */ |
1036 |
CHECK_FPU_ENABLED |
1037 |
if (ctx->fpscr & FPSCR_SZ) {
|
1038 |
TCGv addr_hi = tcg_temp_new(); |
1039 |
int fr = XREG(B11_8);
|
1040 |
tcg_gen_addi_i32(addr_hi, REG(B7_4), 4);
|
1041 |
tcg_gen_qemu_ld32u(cpu_fregs[fr ], REG(B7_4), ctx->memidx); |
1042 |
tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr_hi, ctx->memidx);
|
1043 |
tcg_temp_free(addr_hi); |
1044 |
} else {
|
1045 |
tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], REG(B7_4), ctx->memidx); |
1046 |
} |
1047 |
return;
|
1048 |
case 0xf009: /* fmov @Rm+,{F,D,X}Rn - FPSCR: Nothing */ |
1049 |
CHECK_FPU_ENABLED |
1050 |
if (ctx->fpscr & FPSCR_SZ) {
|
1051 |
TCGv addr_hi = tcg_temp_new(); |
1052 |
int fr = XREG(B11_8);
|
1053 |
tcg_gen_addi_i32(addr_hi, REG(B7_4), 4);
|
1054 |
tcg_gen_qemu_ld32u(cpu_fregs[fr ], REG(B7_4), ctx->memidx); |
1055 |
tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr_hi, ctx->memidx);
|
1056 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 8);
|
1057 |
tcg_temp_free(addr_hi); |
1058 |
} else {
|
1059 |
tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], REG(B7_4), ctx->memidx); |
1060 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
|
1061 |
} |
1062 |
return;
|
1063 |
case 0xf00b: /* fmov {F,D,X}Rm,@-Rn - FPSCR: Nothing */ |
1064 |
CHECK_FPU_ENABLED |
1065 |
if (ctx->fpscr & FPSCR_SZ) {
|
1066 |
TCGv addr = tcg_temp_new_i32(); |
1067 |
int fr = XREG(B7_4);
|
1068 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
1069 |
tcg_gen_qemu_st32(cpu_fregs[fr+1], addr, ctx->memidx);
|
1070 |
tcg_gen_subi_i32(addr, REG(B11_8), 8);
|
1071 |
tcg_gen_qemu_st32(cpu_fregs[fr ], addr, ctx->memidx); |
1072 |
tcg_gen_mov_i32(REG(B11_8), addr); |
1073 |
tcg_temp_free(addr); |
1074 |
} else {
|
1075 |
TCGv addr; |
1076 |
addr = tcg_temp_new_i32(); |
1077 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
1078 |
tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], addr, ctx->memidx); |
1079 |
tcg_temp_free(addr); |
1080 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
|
1081 |
} |
1082 |
return;
|
1083 |
case 0xf006: /* fmov @(R0,Rm),{F,D,X}Rm - FPSCR: Nothing */ |
1084 |
CHECK_FPU_ENABLED |
1085 |
{ |
1086 |
TCGv addr = tcg_temp_new_i32(); |
1087 |
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
|
1088 |
if (ctx->fpscr & FPSCR_SZ) {
|
1089 |
int fr = XREG(B11_8);
|
1090 |
tcg_gen_qemu_ld32u(cpu_fregs[fr ], addr, ctx->memidx); |
1091 |
tcg_gen_addi_i32(addr, addr, 4);
|
1092 |
tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr, ctx->memidx);
|
1093 |
} else {
|
1094 |
tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], addr, ctx->memidx); |
1095 |
} |
1096 |
tcg_temp_free(addr); |
1097 |
} |
1098 |
return;
|
1099 |
case 0xf007: /* fmov {F,D,X}Rn,@(R0,Rn) - FPSCR: Nothing */ |
1100 |
CHECK_FPU_ENABLED |
1101 |
{ |
1102 |
TCGv addr = tcg_temp_new(); |
1103 |
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
|
1104 |
if (ctx->fpscr & FPSCR_SZ) {
|
1105 |
int fr = XREG(B7_4);
|
1106 |
tcg_gen_qemu_ld32u(cpu_fregs[fr ], addr, ctx->memidx); |
1107 |
tcg_gen_addi_i32(addr, addr, 4);
|
1108 |
tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr, ctx->memidx);
|
1109 |
} else {
|
1110 |
tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], addr, ctx->memidx); |
1111 |
} |
1112 |
tcg_temp_free(addr); |
1113 |
} |
1114 |
return;
|
1115 |
case 0xf000: /* fadd Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */ |
1116 |
case 0xf001: /* fsub Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */ |
1117 |
case 0xf002: /* fmul Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */ |
1118 |
case 0xf003: /* fdiv Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */ |
1119 |
case 0xf004: /* fcmp/eq Rm,Rn - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */ |
1120 |
case 0xf005: /* fcmp/gt Rm,Rn - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */ |
1121 |
{ |
1122 |
CHECK_FPU_ENABLED |
1123 |
if (ctx->fpscr & FPSCR_PR) {
|
1124 |
TCGv_i64 fp0, fp1; |
1125 |
|
1126 |
if (ctx->opcode & 0x0110) |
1127 |
break; /* illegal instruction */ |
1128 |
fp0 = tcg_temp_new_i64(); |
1129 |
fp1 = tcg_temp_new_i64(); |
1130 |
gen_load_fpr64(fp0, DREG(B11_8)); |
1131 |
gen_load_fpr64(fp1, DREG(B7_4)); |
1132 |
switch (ctx->opcode & 0xf00f) { |
1133 |
case 0xf000: /* fadd Rm,Rn */ |
1134 |
gen_helper_fadd_DT(fp0, fp0, fp1); |
1135 |
break;
|
1136 |
case 0xf001: /* fsub Rm,Rn */ |
1137 |
gen_helper_fsub_DT(fp0, fp0, fp1); |
1138 |
break;
|
1139 |
case 0xf002: /* fmul Rm,Rn */ |
1140 |
gen_helper_fmul_DT(fp0, fp0, fp1); |
1141 |
break;
|
1142 |
case 0xf003: /* fdiv Rm,Rn */ |
1143 |
gen_helper_fdiv_DT(fp0, fp0, fp1); |
1144 |
break;
|
1145 |
case 0xf004: /* fcmp/eq Rm,Rn */ |
1146 |
gen_helper_fcmp_eq_DT(fp0, fp1); |
1147 |
return;
|
1148 |
case 0xf005: /* fcmp/gt Rm,Rn */ |
1149 |
gen_helper_fcmp_gt_DT(fp0, fp1); |
1150 |
return;
|
1151 |
} |
1152 |
gen_store_fpr64(fp0, DREG(B11_8)); |
1153 |
tcg_temp_free_i64(fp0); |
1154 |
tcg_temp_free_i64(fp1); |
1155 |
} else {
|
1156 |
switch (ctx->opcode & 0xf00f) { |
1157 |
case 0xf000: /* fadd Rm,Rn */ |
1158 |
gen_helper_fadd_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
1159 |
break;
|
1160 |
case 0xf001: /* fsub Rm,Rn */ |
1161 |
gen_helper_fsub_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
1162 |
break;
|
1163 |
case 0xf002: /* fmul Rm,Rn */ |
1164 |
gen_helper_fmul_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
1165 |
break;
|
1166 |
case 0xf003: /* fdiv Rm,Rn */ |
1167 |
gen_helper_fdiv_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
1168 |
break;
|
1169 |
case 0xf004: /* fcmp/eq Rm,Rn */ |
1170 |
gen_helper_fcmp_eq_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
1171 |
return;
|
1172 |
case 0xf005: /* fcmp/gt Rm,Rn */ |
1173 |
gen_helper_fcmp_gt_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
1174 |
return;
|
1175 |
} |
1176 |
} |
1177 |
} |
1178 |
return;
|
1179 |
case 0xf00e: /* fmac FR0,RM,Rn */ |
1180 |
{ |
1181 |
CHECK_FPU_ENABLED |
1182 |
if (ctx->fpscr & FPSCR_PR) {
|
1183 |
break; /* illegal instruction */ |
1184 |
} else {
|
1185 |
gen_helper_fmac_FT(cpu_fregs[FREG(B11_8)], |
1186 |
cpu_fregs[FREG(0)], cpu_fregs[FREG(B7_4)], cpu_fregs[FREG(B11_8)]);
|
1187 |
return;
|
1188 |
} |
1189 |
} |
1190 |
} |
1191 |
|
1192 |
switch (ctx->opcode & 0xff00) { |
1193 |
case 0xc900: /* and #imm,R0 */ |
1194 |
tcg_gen_andi_i32(REG(0), REG(0), B7_0); |
1195 |
return;
|
1196 |
case 0xcd00: /* and.b #imm,@(R0,GBR) */ |
1197 |
{ |
1198 |
TCGv addr, val; |
1199 |
addr = tcg_temp_new(); |
1200 |
tcg_gen_add_i32(addr, REG(0), cpu_gbr);
|
1201 |
val = tcg_temp_new(); |
1202 |
tcg_gen_qemu_ld8u(val, addr, ctx->memidx); |
1203 |
tcg_gen_andi_i32(val, val, B7_0); |
1204 |
tcg_gen_qemu_st8(val, addr, ctx->memidx); |
1205 |
tcg_temp_free(val); |
1206 |
tcg_temp_free(addr); |
1207 |
} |
1208 |
return;
|
1209 |
case 0x8b00: /* bf label */ |
1210 |
CHECK_NOT_DELAY_SLOT |
1211 |
gen_conditional_jump(ctx, ctx->pc + 2,
|
1212 |
ctx->pc + 4 + B7_0s * 2); |
1213 |
ctx->bstate = BS_BRANCH; |
1214 |
return;
|
1215 |
case 0x8f00: /* bf/s label */ |
1216 |
CHECK_NOT_DELAY_SLOT |
1217 |
gen_branch_slot(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2, 0); |
1218 |
ctx->flags |= DELAY_SLOT_CONDITIONAL; |
1219 |
return;
|
1220 |
case 0x8900: /* bt label */ |
1221 |
CHECK_NOT_DELAY_SLOT |
1222 |
gen_conditional_jump(ctx, ctx->pc + 4 + B7_0s * 2, |
1223 |
ctx->pc + 2);
|
1224 |
ctx->bstate = BS_BRANCH; |
1225 |
return;
|
1226 |
case 0x8d00: /* bt/s label */ |
1227 |
CHECK_NOT_DELAY_SLOT |
1228 |
gen_branch_slot(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2, 1); |
1229 |
ctx->flags |= DELAY_SLOT_CONDITIONAL; |
1230 |
return;
|
1231 |
case 0x8800: /* cmp/eq #imm,R0 */ |
1232 |
gen_cmp_imm(TCG_COND_EQ, REG(0), B7_0s);
|
1233 |
return;
|
1234 |
case 0xc400: /* mov.b @(disp,GBR),R0 */ |
1235 |
{ |
1236 |
TCGv addr = tcg_temp_new(); |
1237 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0); |
1238 |
tcg_gen_qemu_ld8s(REG(0), addr, ctx->memidx);
|
1239 |
tcg_temp_free(addr); |
1240 |
} |
1241 |
return;
|
1242 |
case 0xc500: /* mov.w @(disp,GBR),R0 */ |
1243 |
{ |
1244 |
TCGv addr = tcg_temp_new(); |
1245 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 2);
|
1246 |
tcg_gen_qemu_ld16s(REG(0), addr, ctx->memidx);
|
1247 |
tcg_temp_free(addr); |
1248 |
} |
1249 |
return;
|
1250 |
case 0xc600: /* mov.l @(disp,GBR),R0 */ |
1251 |
{ |
1252 |
TCGv addr = tcg_temp_new(); |
1253 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 4);
|
1254 |
tcg_gen_qemu_ld32s(REG(0), addr, ctx->memidx);
|
1255 |
tcg_temp_free(addr); |
1256 |
} |
1257 |
return;
|
1258 |
case 0xc000: /* mov.b R0,@(disp,GBR) */ |
1259 |
{ |
1260 |
TCGv addr = tcg_temp_new(); |
1261 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0); |
1262 |
tcg_gen_qemu_st8(REG(0), addr, ctx->memidx);
|
1263 |
tcg_temp_free(addr); |
1264 |
} |
1265 |
return;
|
1266 |
case 0xc100: /* mov.w R0,@(disp,GBR) */ |
1267 |
{ |
1268 |
TCGv addr = tcg_temp_new(); |
1269 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 2);
|
1270 |
tcg_gen_qemu_st16(REG(0), addr, ctx->memidx);
|
1271 |
tcg_temp_free(addr); |
1272 |
} |
1273 |
return;
|
1274 |
case 0xc200: /* mov.l R0,@(disp,GBR) */ |
1275 |
{ |
1276 |
TCGv addr = tcg_temp_new(); |
1277 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 4);
|
1278 |
tcg_gen_qemu_st32(REG(0), addr, ctx->memidx);
|
1279 |
tcg_temp_free(addr); |
1280 |
} |
1281 |
return;
|
1282 |
case 0x8000: /* mov.b R0,@(disp,Rn) */ |
1283 |
{ |
1284 |
TCGv addr = tcg_temp_new(); |
1285 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0); |
1286 |
tcg_gen_qemu_st8(REG(0), addr, ctx->memidx);
|
1287 |
tcg_temp_free(addr); |
1288 |
} |
1289 |
return;
|
1290 |
case 0x8100: /* mov.w R0,@(disp,Rn) */ |
1291 |
{ |
1292 |
TCGv addr = tcg_temp_new(); |
1293 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 2);
|
1294 |
tcg_gen_qemu_st16(REG(0), addr, ctx->memidx);
|
1295 |
tcg_temp_free(addr); |
1296 |
} |
1297 |
return;
|
1298 |
case 0x8400: /* mov.b @(disp,Rn),R0 */ |
1299 |
{ |
1300 |
TCGv addr = tcg_temp_new(); |
1301 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0); |
1302 |
tcg_gen_qemu_ld8s(REG(0), addr, ctx->memidx);
|
1303 |
tcg_temp_free(addr); |
1304 |
} |
1305 |
return;
|
1306 |
case 0x8500: /* mov.w @(disp,Rn),R0 */ |
1307 |
{ |
1308 |
TCGv addr = tcg_temp_new(); |
1309 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 2);
|
1310 |
tcg_gen_qemu_ld16s(REG(0), addr, ctx->memidx);
|
1311 |
tcg_temp_free(addr); |
1312 |
} |
1313 |
return;
|
1314 |
case 0xc700: /* mova @(disp,PC),R0 */ |
1315 |
tcg_gen_movi_i32(REG(0), ((ctx->pc & 0xfffffffc) + 4 + B7_0 * 4) & ~3); |
1316 |
return;
|
1317 |
case 0xcb00: /* or #imm,R0 */ |
1318 |
tcg_gen_ori_i32(REG(0), REG(0), B7_0); |
1319 |
return;
|
1320 |
case 0xcf00: /* or.b #imm,@(R0,GBR) */ |
1321 |
{ |
1322 |
TCGv addr, val; |
1323 |
addr = tcg_temp_new(); |
1324 |
tcg_gen_add_i32(addr, REG(0), cpu_gbr);
|
1325 |
val = tcg_temp_new(); |
1326 |
tcg_gen_qemu_ld8u(val, addr, ctx->memidx); |
1327 |
tcg_gen_ori_i32(val, val, B7_0); |
1328 |
tcg_gen_qemu_st8(val, addr, ctx->memidx); |
1329 |
tcg_temp_free(val); |
1330 |
tcg_temp_free(addr); |
1331 |
} |
1332 |
return;
|
1333 |
case 0xc300: /* trapa #imm */ |
1334 |
{ |
1335 |
TCGv imm; |
1336 |
CHECK_NOT_DELAY_SLOT |
1337 |
tcg_gen_movi_i32(cpu_pc, ctx->pc); |
1338 |
imm = tcg_const_i32(B7_0); |
1339 |
gen_helper_trapa(imm); |
1340 |
tcg_temp_free(imm); |
1341 |
ctx->bstate = BS_BRANCH; |
1342 |
} |
1343 |
return;
|
1344 |
case 0xc800: /* tst #imm,R0 */ |
1345 |
{ |
1346 |
TCGv val = tcg_temp_new(); |
1347 |
tcg_gen_andi_i32(val, REG(0), B7_0);
|
1348 |
gen_cmp_imm(TCG_COND_EQ, val, 0);
|
1349 |
tcg_temp_free(val); |
1350 |
} |
1351 |
return;
|
1352 |
case 0xcc00: /* tst.b #imm,@(R0,GBR) */ |
1353 |
{ |
1354 |
TCGv val = tcg_temp_new(); |
1355 |
tcg_gen_add_i32(val, REG(0), cpu_gbr);
|
1356 |
tcg_gen_qemu_ld8u(val, val, ctx->memidx); |
1357 |
tcg_gen_andi_i32(val, val, B7_0); |
1358 |
gen_cmp_imm(TCG_COND_EQ, val, 0);
|
1359 |
tcg_temp_free(val); |
1360 |
} |
1361 |
return;
|
1362 |
case 0xca00: /* xor #imm,R0 */ |
1363 |
tcg_gen_xori_i32(REG(0), REG(0), B7_0); |
1364 |
return;
|
1365 |
case 0xce00: /* xor.b #imm,@(R0,GBR) */ |
1366 |
{ |
1367 |
TCGv addr, val; |
1368 |
addr = tcg_temp_new(); |
1369 |
tcg_gen_add_i32(addr, REG(0), cpu_gbr);
|
1370 |
val = tcg_temp_new(); |
1371 |
tcg_gen_qemu_ld8u(val, addr, ctx->memidx); |
1372 |
tcg_gen_xori_i32(val, val, B7_0); |
1373 |
tcg_gen_qemu_st8(val, addr, ctx->memidx); |
1374 |
tcg_temp_free(val); |
1375 |
tcg_temp_free(addr); |
1376 |
} |
1377 |
return;
|
1378 |
} |
1379 |
|
1380 |
switch (ctx->opcode & 0xf08f) { |
1381 |
case 0x408e: /* ldc Rm,Rn_BANK */ |
1382 |
CHECK_PRIVILEGED |
1383 |
tcg_gen_mov_i32(ALTREG(B6_4), REG(B11_8)); |
1384 |
return;
|
1385 |
case 0x4087: /* ldc.l @Rm+,Rn_BANK */ |
1386 |
CHECK_PRIVILEGED |
1387 |
tcg_gen_qemu_ld32s(ALTREG(B6_4), REG(B11_8), ctx->memidx); |
1388 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
1389 |
return;
|
1390 |
case 0x0082: /* stc Rm_BANK,Rn */ |
1391 |
CHECK_PRIVILEGED |
1392 |
tcg_gen_mov_i32(REG(B11_8), ALTREG(B6_4)); |
1393 |
return;
|
1394 |
case 0x4083: /* stc.l Rm_BANK,@-Rn */ |
1395 |
CHECK_PRIVILEGED |
1396 |
{ |
1397 |
TCGv addr = tcg_temp_new(); |
1398 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
1399 |
tcg_gen_qemu_st32(ALTREG(B6_4), addr, ctx->memidx); |
1400 |
tcg_temp_free(addr); |
1401 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
|
1402 |
} |
1403 |
return;
|
1404 |
} |
1405 |
|
1406 |
switch (ctx->opcode & 0xf0ff) { |
1407 |
case 0x0023: /* braf Rn */ |
1408 |
CHECK_NOT_DELAY_SLOT |
1409 |
tcg_gen_addi_i32(cpu_delayed_pc, REG(B11_8), ctx->pc + 4);
|
1410 |
ctx->flags |= DELAY_SLOT; |
1411 |
ctx->delayed_pc = (uint32_t) - 1;
|
1412 |
return;
|
1413 |
case 0x0003: /* bsrf Rn */ |
1414 |
CHECK_NOT_DELAY_SLOT |
1415 |
tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
|
1416 |
tcg_gen_add_i32(cpu_delayed_pc, REG(B11_8), cpu_pr); |
1417 |
ctx->flags |= DELAY_SLOT; |
1418 |
ctx->delayed_pc = (uint32_t) - 1;
|
1419 |
return;
|
1420 |
case 0x4015: /* cmp/pl Rn */ |
1421 |
gen_cmp_imm(TCG_COND_GT, REG(B11_8), 0);
|
1422 |
return;
|
1423 |
case 0x4011: /* cmp/pz Rn */ |
1424 |
gen_cmp_imm(TCG_COND_GE, REG(B11_8), 0);
|
1425 |
return;
|
1426 |
case 0x4010: /* dt Rn */ |
1427 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 1);
|
1428 |
gen_cmp_imm(TCG_COND_EQ, REG(B11_8), 0);
|
1429 |
return;
|
1430 |
case 0x402b: /* jmp @Rn */ |
1431 |
CHECK_NOT_DELAY_SLOT |
1432 |
tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8)); |
1433 |
ctx->flags |= DELAY_SLOT; |
1434 |
ctx->delayed_pc = (uint32_t) - 1;
|
1435 |
return;
|
1436 |
case 0x400b: /* jsr @Rn */ |
1437 |
CHECK_NOT_DELAY_SLOT |
1438 |
tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
|
1439 |
tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8)); |
1440 |
ctx->flags |= DELAY_SLOT; |
1441 |
ctx->delayed_pc = (uint32_t) - 1;
|
1442 |
return;
|
1443 |
case 0x400e: /* ldc Rm,SR */ |
1444 |
CHECK_PRIVILEGED |
1445 |
tcg_gen_andi_i32(cpu_sr, REG(B11_8), 0x700083f3);
|
1446 |
ctx->bstate = BS_STOP; |
1447 |
return;
|
1448 |
case 0x4007: /* ldc.l @Rm+,SR */ |
1449 |
CHECK_PRIVILEGED |
1450 |
{ |
1451 |
TCGv val = tcg_temp_new(); |
1452 |
tcg_gen_qemu_ld32s(val, REG(B11_8), ctx->memidx); |
1453 |
tcg_gen_andi_i32(cpu_sr, val, 0x700083f3);
|
1454 |
tcg_temp_free(val); |
1455 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
1456 |
ctx->bstate = BS_STOP; |
1457 |
} |
1458 |
return;
|
1459 |
case 0x0002: /* stc SR,Rn */ |
1460 |
CHECK_PRIVILEGED |
1461 |
tcg_gen_mov_i32(REG(B11_8), cpu_sr); |
1462 |
return;
|
1463 |
case 0x4003: /* stc SR,@-Rn */ |
1464 |
CHECK_PRIVILEGED |
1465 |
{ |
1466 |
TCGv addr = tcg_temp_new(); |
1467 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
1468 |
tcg_gen_qemu_st32(cpu_sr, addr, ctx->memidx); |
1469 |
tcg_temp_free(addr); |
1470 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
|
1471 |
} |
1472 |
return;
|
1473 |
#define LDST(reg,ldnum,ldpnum,stnum,stpnum,prechk) \
|
1474 |
case ldnum: \
|
1475 |
prechk \ |
1476 |
tcg_gen_mov_i32 (cpu_##reg, REG(B11_8)); \ |
1477 |
return; \
|
1478 |
case ldpnum: \
|
1479 |
prechk \ |
1480 |
tcg_gen_qemu_ld32s (cpu_##reg, REG(B11_8), ctx->memidx); \ |
1481 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4); \
|
1482 |
return; \
|
1483 |
case stnum: \
|
1484 |
prechk \ |
1485 |
tcg_gen_mov_i32 (REG(B11_8), cpu_##reg); \ |
1486 |
return; \
|
1487 |
case stpnum: \
|
1488 |
prechk \ |
1489 |
{ \ |
1490 |
TCGv addr = tcg_temp_new(); \ |
1491 |
tcg_gen_subi_i32(addr, REG(B11_8), 4); \
|
1492 |
tcg_gen_qemu_st32 (cpu_##reg, addr, ctx->memidx); \ |
1493 |
tcg_temp_free(addr); \ |
1494 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4); \
|
1495 |
} \ |
1496 |
return;
|
1497 |
LDST(gbr, 0x401e, 0x4017, 0x0012, 0x4013, {}) |
1498 |
LDST(vbr, 0x402e, 0x4027, 0x0022, 0x4023, CHECK_PRIVILEGED) |
1499 |
LDST(ssr, 0x403e, 0x4037, 0x0032, 0x4033, CHECK_PRIVILEGED) |
1500 |
LDST(spc, 0x404e, 0x4047, 0x0042, 0x4043, CHECK_PRIVILEGED) |
1501 |
LDST(dbr, 0x40fa, 0x40f6, 0x00fa, 0x40f2, CHECK_PRIVILEGED) |
1502 |
LDST(mach, 0x400a, 0x4006, 0x000a, 0x4002, {}) |
1503 |
LDST(macl, 0x401a, 0x4016, 0x001a, 0x4012, {}) |
1504 |
LDST(pr, 0x402a, 0x4026, 0x002a, 0x4022, {}) |
1505 |
LDST(fpul, 0x405a, 0x4056, 0x005a, 0x4052, {CHECK_FPU_ENABLED}) |
1506 |
case 0x406a: /* lds Rm,FPSCR */ |
1507 |
CHECK_FPU_ENABLED |
1508 |
gen_helper_ld_fpscr(REG(B11_8)); |
1509 |
ctx->bstate = BS_STOP; |
1510 |
return;
|
1511 |
case 0x4066: /* lds.l @Rm+,FPSCR */ |
1512 |
CHECK_FPU_ENABLED |
1513 |
{ |
1514 |
TCGv addr = tcg_temp_new(); |
1515 |
tcg_gen_qemu_ld32s(addr, REG(B11_8), ctx->memidx); |
1516 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
1517 |
gen_helper_ld_fpscr(addr); |
1518 |
tcg_temp_free(addr); |
1519 |
ctx->bstate = BS_STOP; |
1520 |
} |
1521 |
return;
|
1522 |
case 0x006a: /* sts FPSCR,Rn */ |
1523 |
CHECK_FPU_ENABLED |
1524 |
tcg_gen_andi_i32(REG(B11_8), cpu_fpscr, 0x003fffff);
|
1525 |
return;
|
1526 |
case 0x4062: /* sts FPSCR,@-Rn */ |
1527 |
CHECK_FPU_ENABLED |
1528 |
{ |
1529 |
TCGv addr, val; |
1530 |
val = tcg_temp_new(); |
1531 |
tcg_gen_andi_i32(val, cpu_fpscr, 0x003fffff);
|
1532 |
addr = tcg_temp_new(); |
1533 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
1534 |
tcg_gen_qemu_st32(val, addr, ctx->memidx); |
1535 |
tcg_temp_free(addr); |
1536 |
tcg_temp_free(val); |
1537 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
|
1538 |
} |
1539 |
return;
|
1540 |
case 0x00c3: /* movca.l R0,@Rm */ |
1541 |
tcg_gen_qemu_st32(REG(0), REG(B11_8), ctx->memidx);
|
1542 |
return;
|
1543 |
case 0x40a9: |
1544 |
/* MOVUA.L @Rm,R0 (Rm) -> R0
|
1545 |
Load non-boundary-aligned data */
|
1546 |
tcg_gen_qemu_ld32u(REG(0), REG(B11_8), ctx->memidx);
|
1547 |
return;
|
1548 |
case 0x40e9: |
1549 |
/* MOVUA.L @Rm+,R0 (Rm) -> R0, Rm + 4 -> Rm
|
1550 |
Load non-boundary-aligned data */
|
1551 |
tcg_gen_qemu_ld32u(REG(0), REG(B11_8), ctx->memidx);
|
1552 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
1553 |
return;
|
1554 |
case 0x0029: /* movt Rn */ |
1555 |
tcg_gen_andi_i32(REG(B11_8), cpu_sr, SR_T); |
1556 |
return;
|
1557 |
case 0x0093: /* ocbi @Rn */ |
1558 |
{ |
1559 |
TCGv dummy = tcg_temp_new(); |
1560 |
tcg_gen_qemu_ld32s(dummy, REG(B11_8), ctx->memidx); |
1561 |
tcg_temp_free(dummy); |
1562 |
} |
1563 |
return;
|
1564 |
case 0x00a3: /* ocbp @Rn */ |
1565 |
{ |
1566 |
TCGv dummy = tcg_temp_new(); |
1567 |
tcg_gen_qemu_ld32s(dummy, REG(B11_8), ctx->memidx); |
1568 |
tcg_temp_free(dummy); |
1569 |
} |
1570 |
return;
|
1571 |
case 0x00b3: /* ocbwb @Rn */ |
1572 |
{ |
1573 |
TCGv dummy = tcg_temp_new(); |
1574 |
tcg_gen_qemu_ld32s(dummy, REG(B11_8), ctx->memidx); |
1575 |
tcg_temp_free(dummy); |
1576 |
} |
1577 |
return;
|
1578 |
case 0x0083: /* pref @Rn */ |
1579 |
return;
|
1580 |
case 0x00d3: /* prefi @Rn */ |
1581 |
if (ctx->features & SH_FEATURE_SH4A)
|
1582 |
return;
|
1583 |
else
|
1584 |
break;
|
1585 |
case 0x00e3: /* icbi @Rn */ |
1586 |
if (ctx->features & SH_FEATURE_SH4A)
|
1587 |
return;
|
1588 |
else
|
1589 |
break;
|
1590 |
case 0x00ab: /* synco */ |
1591 |
if (ctx->features & SH_FEATURE_SH4A)
|
1592 |
return;
|
1593 |
else
|
1594 |
break;
|
1595 |
case 0x4024: /* rotcl Rn */ |
1596 |
{ |
1597 |
TCGv tmp = tcg_temp_new(); |
1598 |
tcg_gen_mov_i32(tmp, cpu_sr); |
1599 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 31); |
1600 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
|
1601 |
gen_copy_bit_i32(REG(B11_8), 0, tmp, 0); |
1602 |
tcg_temp_free(tmp); |
1603 |
} |
1604 |
return;
|
1605 |
case 0x4025: /* rotcr Rn */ |
1606 |
{ |
1607 |
TCGv tmp = tcg_temp_new(); |
1608 |
tcg_gen_mov_i32(tmp, cpu_sr); |
1609 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0); |
1610 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
|
1611 |
gen_copy_bit_i32(REG(B11_8), 31, tmp, 0); |
1612 |
tcg_temp_free(tmp); |
1613 |
} |
1614 |
return;
|
1615 |
case 0x4004: /* rotl Rn */ |
1616 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 31); |
1617 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
|
1618 |
gen_copy_bit_i32(REG(B11_8), 0, cpu_sr, 0); |
1619 |
return;
|
1620 |
case 0x4005: /* rotr Rn */ |
1621 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0); |
1622 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
|
1623 |
gen_copy_bit_i32(REG(B11_8), 31, cpu_sr, 0); |
1624 |
return;
|
1625 |
case 0x4000: /* shll Rn */ |
1626 |
case 0x4020: /* shal Rn */ |
1627 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 31); |
1628 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
|
1629 |
return;
|
1630 |
case 0x4021: /* shar Rn */ |
1631 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0); |
1632 |
tcg_gen_sari_i32(REG(B11_8), REG(B11_8), 1);
|
1633 |
return;
|
1634 |
case 0x4001: /* shlr Rn */ |
1635 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0); |
1636 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
|
1637 |
return;
|
1638 |
case 0x4008: /* shll2 Rn */ |
1639 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 2);
|
1640 |
return;
|
1641 |
case 0x4018: /* shll8 Rn */ |
1642 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 8);
|
1643 |
return;
|
1644 |
case 0x4028: /* shll16 Rn */ |
1645 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 16);
|
1646 |
return;
|
1647 |
case 0x4009: /* shlr2 Rn */ |
1648 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 2);
|
1649 |
return;
|
1650 |
case 0x4019: /* shlr8 Rn */ |
1651 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 8);
|
1652 |
return;
|
1653 |
case 0x4029: /* shlr16 Rn */ |
1654 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 16);
|
1655 |
return;
|
1656 |
case 0x401b: /* tas.b @Rn */ |
1657 |
{ |
1658 |
TCGv addr, val; |
1659 |
addr = tcg_temp_local_new(); |
1660 |
tcg_gen_mov_i32(addr, REG(B11_8)); |
1661 |
val = tcg_temp_local_new(); |
1662 |
tcg_gen_qemu_ld8u(val, addr, ctx->memidx); |
1663 |
gen_cmp_imm(TCG_COND_EQ, val, 0);
|
1664 |
tcg_gen_ori_i32(val, val, 0x80);
|
1665 |
tcg_gen_qemu_st8(val, addr, ctx->memidx); |
1666 |
tcg_temp_free(val); |
1667 |
tcg_temp_free(addr); |
1668 |
} |
1669 |
return;
|
1670 |
case 0xf00d: /* fsts FPUL,FRn - FPSCR: Nothing */ |
1671 |
CHECK_FPU_ENABLED |
1672 |
tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fpul); |
1673 |
return;
|
1674 |
case 0xf01d: /* flds FRm,FPUL - FPSCR: Nothing */ |
1675 |
CHECK_FPU_ENABLED |
1676 |
tcg_gen_mov_i32(cpu_fpul, cpu_fregs[FREG(B11_8)]); |
1677 |
return;
|
1678 |
case 0xf02d: /* float FPUL,FRn/DRn - FPSCR: R[PR,Enable.I]/W[Cause,Flag] */ |
1679 |
CHECK_FPU_ENABLED |
1680 |
if (ctx->fpscr & FPSCR_PR) {
|
1681 |
TCGv_i64 fp; |
1682 |
if (ctx->opcode & 0x0100) |
1683 |
break; /* illegal instruction */ |
1684 |
fp = tcg_temp_new_i64(); |
1685 |
gen_helper_float_DT(fp, cpu_fpul); |
1686 |
gen_store_fpr64(fp, DREG(B11_8)); |
1687 |
tcg_temp_free_i64(fp); |
1688 |
} |
1689 |
else {
|
1690 |
gen_helper_float_FT(cpu_fregs[FREG(B11_8)], cpu_fpul); |
1691 |
} |
1692 |
return;
|
1693 |
case 0xf03d: /* ftrc FRm/DRm,FPUL - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */ |
1694 |
CHECK_FPU_ENABLED |
1695 |
if (ctx->fpscr & FPSCR_PR) {
|
1696 |
TCGv_i64 fp; |
1697 |
if (ctx->opcode & 0x0100) |
1698 |
break; /* illegal instruction */ |
1699 |
fp = tcg_temp_new_i64(); |
1700 |
gen_load_fpr64(fp, DREG(B11_8)); |
1701 |
gen_helper_ftrc_DT(cpu_fpul, fp); |
1702 |
tcg_temp_free_i64(fp); |
1703 |
} |
1704 |
else {
|
1705 |
gen_helper_ftrc_FT(cpu_fpul, cpu_fregs[FREG(B11_8)]); |
1706 |
} |
1707 |
return;
|
1708 |
case 0xf04d: /* fneg FRn/DRn - FPSCR: Nothing */ |
1709 |
CHECK_FPU_ENABLED |
1710 |
{ |
1711 |
gen_helper_fneg_T(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); |
1712 |
} |
1713 |
return;
|
1714 |
case 0xf05d: /* fabs FRn/DRn */ |
1715 |
CHECK_FPU_ENABLED |
1716 |
if (ctx->fpscr & FPSCR_PR) {
|
1717 |
if (ctx->opcode & 0x0100) |
1718 |
break; /* illegal instruction */ |
1719 |
TCGv_i64 fp = tcg_temp_new_i64(); |
1720 |
gen_load_fpr64(fp, DREG(B11_8)); |
1721 |
gen_helper_fabs_DT(fp, fp); |
1722 |
gen_store_fpr64(fp, DREG(B11_8)); |
1723 |
tcg_temp_free_i64(fp); |
1724 |
} else {
|
1725 |
gen_helper_fabs_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); |
1726 |
} |
1727 |
return;
|
1728 |
case 0xf06d: /* fsqrt FRn */ |
1729 |
CHECK_FPU_ENABLED |
1730 |
if (ctx->fpscr & FPSCR_PR) {
|
1731 |
if (ctx->opcode & 0x0100) |
1732 |
break; /* illegal instruction */ |
1733 |
TCGv_i64 fp = tcg_temp_new_i64(); |
1734 |
gen_load_fpr64(fp, DREG(B11_8)); |
1735 |
gen_helper_fsqrt_DT(fp, fp); |
1736 |
gen_store_fpr64(fp, DREG(B11_8)); |
1737 |
tcg_temp_free_i64(fp); |
1738 |
} else {
|
1739 |
gen_helper_fsqrt_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); |
1740 |
} |
1741 |
return;
|
1742 |
case 0xf07d: /* fsrra FRn */ |
1743 |
CHECK_FPU_ENABLED |
1744 |
break;
|
1745 |
case 0xf08d: /* fldi0 FRn - FPSCR: R[PR] */ |
1746 |
CHECK_FPU_ENABLED |
1747 |
if (!(ctx->fpscr & FPSCR_PR)) {
|
1748 |
tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0);
|
1749 |
} |
1750 |
return;
|
1751 |
case 0xf09d: /* fldi1 FRn - FPSCR: R[PR] */ |
1752 |
CHECK_FPU_ENABLED |
1753 |
if (!(ctx->fpscr & FPSCR_PR)) {
|
1754 |
tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0x3f800000);
|
1755 |
} |
1756 |
return;
|
1757 |
case 0xf0ad: /* fcnvsd FPUL,DRn */ |
1758 |
CHECK_FPU_ENABLED |
1759 |
{ |
1760 |
TCGv_i64 fp = tcg_temp_new_i64(); |
1761 |
gen_helper_fcnvsd_FT_DT(fp, cpu_fpul); |
1762 |
gen_store_fpr64(fp, DREG(B11_8)); |
1763 |
tcg_temp_free_i64(fp); |
1764 |
} |
1765 |
return;
|
1766 |
case 0xf0bd: /* fcnvds DRn,FPUL */ |
1767 |
CHECK_FPU_ENABLED |
1768 |
{ |
1769 |
TCGv_i64 fp = tcg_temp_new_i64(); |
1770 |
gen_load_fpr64(fp, DREG(B11_8)); |
1771 |
gen_helper_fcnvds_DT_FT(cpu_fpul, fp); |
1772 |
tcg_temp_free_i64(fp); |
1773 |
} |
1774 |
return;
|
1775 |
} |
1776 |
#if 0
|
1777 |
fprintf(stderr, "unknown instruction 0x%04x at pc 0x%08x\n",
|
1778 |
ctx->opcode, ctx->pc);
|
1779 |
fflush(stderr);
|
1780 |
#endif
|
1781 |
gen_helper_raise_illegal_instruction(); |
1782 |
ctx->bstate = BS_EXCP; |
1783 |
} |
1784 |
|
1785 |
static void decode_opc(DisasContext * ctx) |
1786 |
{ |
1787 |
uint32_t old_flags = ctx->flags; |
1788 |
|
1789 |
_decode_opc(ctx); |
1790 |
|
1791 |
if (old_flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) {
|
1792 |
if (ctx->flags & DELAY_SLOT_CLEARME) {
|
1793 |
gen_store_flags(0);
|
1794 |
} else {
|
1795 |
/* go out of the delay slot */
|
1796 |
uint32_t new_flags = ctx->flags; |
1797 |
new_flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); |
1798 |
gen_store_flags(new_flags); |
1799 |
} |
1800 |
ctx->flags = 0;
|
1801 |
ctx->bstate = BS_BRANCH; |
1802 |
if (old_flags & DELAY_SLOT_CONDITIONAL) {
|
1803 |
gen_delayed_conditional_jump(ctx); |
1804 |
} else if (old_flags & DELAY_SLOT) { |
1805 |
gen_jump(ctx); |
1806 |
} |
1807 |
|
1808 |
} |
1809 |
|
1810 |
/* go into a delay slot */
|
1811 |
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL))
|
1812 |
gen_store_flags(ctx->flags); |
1813 |
} |
1814 |
|
1815 |
static inline void |
1816 |
gen_intermediate_code_internal(CPUState * env, TranslationBlock * tb, |
1817 |
int search_pc)
|
1818 |
{ |
1819 |
DisasContext ctx; |
1820 |
target_ulong pc_start; |
1821 |
static uint16_t *gen_opc_end;
|
1822 |
CPUBreakpoint *bp; |
1823 |
int i, ii;
|
1824 |
int num_insns;
|
1825 |
int max_insns;
|
1826 |
|
1827 |
pc_start = tb->pc; |
1828 |
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
1829 |
ctx.pc = pc_start; |
1830 |
ctx.flags = (uint32_t)tb->flags; |
1831 |
ctx.bstate = BS_NONE; |
1832 |
ctx.sr = env->sr; |
1833 |
ctx.fpscr = env->fpscr; |
1834 |
ctx.memidx = (env->sr & SR_MD) ? 1 : 0; |
1835 |
/* We don't know if the delayed pc came from a dynamic or static branch,
|
1836 |
so assume it is a dynamic branch. */
|
1837 |
ctx.delayed_pc = -1; /* use delayed pc from env pointer */ |
1838 |
ctx.tb = tb; |
1839 |
ctx.singlestep_enabled = env->singlestep_enabled; |
1840 |
ctx.features = env->features; |
1841 |
|
1842 |
#ifdef DEBUG_DISAS
|
1843 |
qemu_log_mask(CPU_LOG_TB_CPU, |
1844 |
"------------------------------------------------\n");
|
1845 |
log_cpu_state_mask(CPU_LOG_TB_CPU, env, 0);
|
1846 |
#endif
|
1847 |
|
1848 |
ii = -1;
|
1849 |
num_insns = 0;
|
1850 |
max_insns = tb->cflags & CF_COUNT_MASK; |
1851 |
if (max_insns == 0) |
1852 |
max_insns = CF_COUNT_MASK; |
1853 |
gen_icount_start(); |
1854 |
while (ctx.bstate == BS_NONE && gen_opc_ptr < gen_opc_end) {
|
1855 |
if (unlikely(!TAILQ_EMPTY(&env->breakpoints))) {
|
1856 |
TAILQ_FOREACH(bp, &env->breakpoints, entry) { |
1857 |
if (ctx.pc == bp->pc) {
|
1858 |
/* We have hit a breakpoint - make sure PC is up-to-date */
|
1859 |
tcg_gen_movi_i32(cpu_pc, ctx.pc); |
1860 |
gen_helper_debug(); |
1861 |
ctx.bstate = BS_EXCP; |
1862 |
break;
|
1863 |
} |
1864 |
} |
1865 |
} |
1866 |
if (search_pc) {
|
1867 |
i = gen_opc_ptr - gen_opc_buf; |
1868 |
if (ii < i) {
|
1869 |
ii++; |
1870 |
while (ii < i)
|
1871 |
gen_opc_instr_start[ii++] = 0;
|
1872 |
} |
1873 |
gen_opc_pc[ii] = ctx.pc; |
1874 |
gen_opc_hflags[ii] = ctx.flags; |
1875 |
gen_opc_instr_start[ii] = 1;
|
1876 |
gen_opc_icount[ii] = num_insns; |
1877 |
} |
1878 |
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) |
1879 |
gen_io_start(); |
1880 |
#if 0
|
1881 |
fprintf(stderr, "Loading opcode at address 0x%08x\n", ctx.pc);
|
1882 |
fflush(stderr);
|
1883 |
#endif
|
1884 |
ctx.opcode = lduw_code(ctx.pc); |
1885 |
decode_opc(&ctx); |
1886 |
num_insns++; |
1887 |
ctx.pc += 2;
|
1888 |
if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) |
1889 |
break;
|
1890 |
if (env->singlestep_enabled)
|
1891 |
break;
|
1892 |
if (num_insns >= max_insns)
|
1893 |
break;
|
1894 |
#ifdef SH4_SINGLE_STEP
|
1895 |
break;
|
1896 |
#endif
|
1897 |
} |
1898 |
if (tb->cflags & CF_LAST_IO)
|
1899 |
gen_io_end(); |
1900 |
if (env->singlestep_enabled) {
|
1901 |
tcg_gen_movi_i32(cpu_pc, ctx.pc); |
1902 |
gen_helper_debug(); |
1903 |
} else {
|
1904 |
switch (ctx.bstate) {
|
1905 |
case BS_STOP:
|
1906 |
/* gen_op_interrupt_restart(); */
|
1907 |
/* fall through */
|
1908 |
case BS_NONE:
|
1909 |
if (ctx.flags) {
|
1910 |
gen_store_flags(ctx.flags | DELAY_SLOT_CLEARME); |
1911 |
} |
1912 |
gen_goto_tb(&ctx, 0, ctx.pc);
|
1913 |
break;
|
1914 |
case BS_EXCP:
|
1915 |
/* gen_op_interrupt_restart(); */
|
1916 |
tcg_gen_exit_tb(0);
|
1917 |
break;
|
1918 |
case BS_BRANCH:
|
1919 |
default:
|
1920 |
break;
|
1921 |
} |
1922 |
} |
1923 |
|
1924 |
gen_icount_end(tb, num_insns); |
1925 |
*gen_opc_ptr = INDEX_op_end; |
1926 |
if (search_pc) {
|
1927 |
i = gen_opc_ptr - gen_opc_buf; |
1928 |
ii++; |
1929 |
while (ii <= i)
|
1930 |
gen_opc_instr_start[ii++] = 0;
|
1931 |
} else {
|
1932 |
tb->size = ctx.pc - pc_start; |
1933 |
tb->icount = num_insns; |
1934 |
} |
1935 |
|
1936 |
#ifdef DEBUG_DISAS
|
1937 |
#ifdef SH4_DEBUG_DISAS
|
1938 |
qemu_log_mask(CPU_LOG_TB_IN_ASM, "\n");
|
1939 |
#endif
|
1940 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
1941 |
qemu_log("IN:\n"); /* , lookup_symbol(pc_start)); */ |
1942 |
log_target_disas(pc_start, ctx.pc - pc_start, 0);
|
1943 |
qemu_log("\n");
|
1944 |
} |
1945 |
#endif
|
1946 |
} |
1947 |
|
1948 |
void gen_intermediate_code(CPUState * env, struct TranslationBlock *tb) |
1949 |
{ |
1950 |
gen_intermediate_code_internal(env, tb, 0);
|
1951 |
} |
1952 |
|
1953 |
void gen_intermediate_code_pc(CPUState * env, struct TranslationBlock *tb) |
1954 |
{ |
1955 |
gen_intermediate_code_internal(env, tb, 1);
|
1956 |
} |
1957 |
|
1958 |
void gen_pc_load(CPUState *env, TranslationBlock *tb,
|
1959 |
unsigned long searched_pc, int pc_pos, void *puc) |
1960 |
{ |
1961 |
env->pc = gen_opc_pc[pc_pos]; |
1962 |
env->flags = gen_opc_hflags[pc_pos]; |
1963 |
} |