root / target-sh4 / translate.c @ 5cd8f621
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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, see <http://www.gnu.org/licenses/>.
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*/
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#define DEBUG_DISAS
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//#define SH4_SINGLE_STEP
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#include "cpu.h" |
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#include "disas/disas.h" |
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#include "tcg-op.h" |
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|
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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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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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int has_movcal;
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} DisasContext; |
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|
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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->flags & 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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|
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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, cpu_ldst;
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static TCGv cpu_fregs[32]; |
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|
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/* internal register indexes */
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static TCGv cpu_flags, cpu_delayed_pc;
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static uint32_t gen_opc_hflags[OPC_BUF_SIZE];
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#include "exec/gen-icount.h" |
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|
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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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|
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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(CPUSH4State, 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(CPUSH4State, pc), "PC");
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cpu_sr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, sr), "SR");
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cpu_ssr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, ssr), "SSR");
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cpu_spc = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, spc), "SPC");
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cpu_gbr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, gbr), "GBR");
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cpu_vbr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, vbr), "VBR");
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cpu_sgr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, sgr), "SGR");
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cpu_dbr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, dbr), "DBR");
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cpu_mach = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, mach), "MACH");
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cpu_macl = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, macl), "MACL");
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cpu_pr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, pr), "PR");
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cpu_fpscr = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, fpscr), "FPSCR");
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cpu_fpul = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, fpul), "FPUL");
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cpu_flags = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, flags), "_flags_");
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cpu_delayed_pc = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, delayed_pc), |
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"_delayed_pc_");
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cpu_ldst = tcg_global_mem_new_i32(TCG_AREG0, |
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offsetof(CPUSH4State, ldst), "_ldst_");
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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(CPUSH4State, fregs[i]), |
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fregnames[i]); |
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done_init = 1;
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} |
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void superh_cpu_dump_state(CPUState *cs, FILE *f,
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fprintf_function cpu_fprintf, int flags)
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{
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SuperHCPU *cpu = SUPERH_CPU(cs); |
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CPUSH4State *env = &cpu->env; |
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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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|
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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((uintptr_t)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(cpu_env); |
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tcg_gen_exit_tb(0);
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} |
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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); |
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if (ctx->singlestep_enabled)
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gen_helper_debug(cpu_env); |
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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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} |
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static inline void gen_branch_slot(uint32_t delayed_pc, int t) |
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{
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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); |
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sr = tcg_temp_new(); |
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tcg_gen_andi_i32(sr, cpu_sr, SR_T); |
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tcg_gen_brcondi_i32(t ? TCG_COND_EQ:TCG_COND_NE, sr, 0, label);
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tcg_gen_ori_i32(cpu_flags, cpu_flags, DELAY_SLOT_TRUE); |
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gen_set_label(label); |
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} |
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|
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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) |
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{
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int l1;
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TCGv sr; |
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l1 = gen_new_label(); |
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sr = tcg_temp_new(); |
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tcg_gen_andi_i32(sr, cpu_sr, SR_T); |
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tcg_gen_brcondi_i32(TCG_COND_NE, sr, 0, l1);
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gen_goto_tb(ctx, 0, ifnott);
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gen_set_label(l1); |
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gen_goto_tb(ctx, 1, ift);
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} |
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|
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/* Delayed conditional jump (bt or bf) */
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static void gen_delayed_conditional_jump(DisasContext * ctx) |
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{
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int l1;
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TCGv ds; |
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l1 = gen_new_label(); |
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ds = tcg_temp_new(); |
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tcg_gen_andi_i32(ds, cpu_flags, DELAY_SLOT_TRUE); |
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tcg_gen_brcondi_i32(TCG_COND_NE, ds, 0, l1);
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gen_goto_tb(ctx, 1, ctx->pc + 2); |
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gen_set_label(l1); |
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tcg_gen_andi_i32(cpu_flags, cpu_flags, ~DELAY_SLOT_TRUE); |
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gen_jump(ctx); |
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} |
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|
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static inline void gen_cmp(int cond, TCGv t0, TCGv t1) |
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{
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TCGv t; |
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|
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t = tcg_temp_new(); |
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tcg_gen_setcond_i32(cond, t, t1, t0); |
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tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
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tcg_gen_or_i32(cpu_sr, cpu_sr, t); |
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|
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tcg_temp_free(t); |
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} |
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|
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static inline void gen_cmp_imm(int cond, TCGv t0, int32_t imm) |
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{
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TCGv t; |
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|
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t = tcg_temp_new(); |
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tcg_gen_setcondi_i32(cond, t, t0, imm); |
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tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
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tcg_gen_or_i32(cpu_sr, cpu_sr, t); |
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|
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tcg_temp_free(t); |
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} |
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|
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static inline void gen_store_flags(uint32_t flags) |
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{
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tcg_gen_andi_i32(cpu_flags, cpu_flags, DELAY_SLOT_TRUE); |
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tcg_gen_ori_i32(cpu_flags, cpu_flags, flags); |
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} |
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|
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static inline void gen_copy_bit_i32(TCGv t0, int p0, TCGv t1, int p1) |
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{
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TCGv tmp = tcg_temp_new(); |
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|
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p0 &= 0x1f;
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p1 &= 0x1f;
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tcg_gen_andi_i32(tmp, t1, (1 << p1));
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tcg_gen_andi_i32(t0, t0, ~(1 << p0));
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if (p0 < p1)
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tcg_gen_shri_i32(tmp, tmp, p1 - p0); |
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else if (p0 > p1) |
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tcg_gen_shli_i32(tmp, tmp, p0 - p1); |
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tcg_gen_or_i32(t0, t0, tmp); |
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|
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tcg_temp_free(tmp); |
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} |
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|
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static inline void gen_load_fpr64(TCGv_i64 t, int reg) |
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{
|
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tcg_gen_concat_i32_i64(t, cpu_fregs[reg + 1], cpu_fregs[reg]);
|
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} |
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|
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static inline void gen_store_fpr64 (TCGv_i64 t, int reg) |
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{
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TCGv_i32 tmp = tcg_temp_new_i32(); |
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tcg_gen_trunc_i64_i32(tmp, t); |
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tcg_gen_mov_i32(cpu_fregs[reg + 1], tmp);
|
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tcg_gen_shri_i64(t, t, 32);
|
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tcg_gen_trunc_i64_i32(tmp, t); |
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tcg_gen_mov_i32(cpu_fregs[reg], tmp); |
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tcg_temp_free_i32(tmp); |
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} |
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|
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#define B3_0 (ctx->opcode & 0xf) |
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#define B6_4 ((ctx->opcode >> 4) & 0x7) |
| 318 |
#define B7_4 ((ctx->opcode >> 4) & 0xf) |
| 319 |
#define B7_0 (ctx->opcode & 0xff) |
| 320 |
#define B7_0s ((int32_t) (int8_t) (ctx->opcode & 0xff)) |
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#define B11_0s (ctx->opcode & 0x800 ? 0xfffff000 | (ctx->opcode & 0xfff) : \ |
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(ctx->opcode & 0xfff))
|
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#define B11_8 ((ctx->opcode >> 8) & 0xf) |
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#define B15_12 ((ctx->opcode >> 12) & 0xf) |
| 325 |
|
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#define REG(x) ((x) < 8 && (ctx->flags & (SR_MD | SR_RB)) == (SR_MD | SR_RB) \ |
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? (cpu_gregs[x + 16]) : (cpu_gregs[x]))
|
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|
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#define ALTREG(x) ((x) < 8 && (ctx->flags & (SR_MD | SR_RB)) != (SR_MD | SR_RB)\ |
| 330 |
? (cpu_gregs[x + 16]) : (cpu_gregs[x]))
|
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|
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#define FREG(x) (ctx->flags & FPSCR_FR ? (x) ^ 0x10 : (x)) |
| 333 |
#define XHACK(x) ((((x) & 1 ) << 4) | ((x) & 0xe)) |
| 334 |
#define XREG(x) (ctx->flags & FPSCR_FR ? XHACK(x) ^ 0x10 : XHACK(x)) |
| 335 |
#define DREG(x) FREG(x) /* Assumes lsb of (x) is always 0 */ |
| 336 |
|
| 337 |
#define CHECK_NOT_DELAY_SLOT \
|
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if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) \
|
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{ \
|
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tcg_gen_movi_i32(cpu_pc, ctx->pc); \ |
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gen_helper_raise_slot_illegal_instruction(cpu_env); \ |
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ctx->bstate = BS_BRANCH; \ |
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return; \
|
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} |
| 345 |
|
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#define CHECK_PRIVILEGED \
|
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if (IS_USER(ctx)) { \
|
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tcg_gen_movi_i32(cpu_pc, ctx->pc); \ |
| 349 |
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \
|
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gen_helper_raise_slot_illegal_instruction(cpu_env); \ |
| 351 |
} else { \
|
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gen_helper_raise_illegal_instruction(cpu_env); \ |
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} \ |
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ctx->bstate = BS_BRANCH; \ |
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return; \
|
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} |
| 357 |
|
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#define CHECK_FPU_ENABLED \
|
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if (ctx->flags & SR_FD) { \
|
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tcg_gen_movi_i32(cpu_pc, ctx->pc); \ |
| 361 |
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \
|
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gen_helper_raise_slot_fpu_disable(cpu_env); \ |
| 363 |
} else { \
|
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gen_helper_raise_fpu_disable(cpu_env); \ |
| 365 |
} \ |
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ctx->bstate = BS_BRANCH; \ |
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return; \
|
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} |
| 369 |
|
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static void _decode_opc(DisasContext * ctx) |
| 371 |
{
|
| 372 |
/* This code tries to make movcal emulation sufficiently
|
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accurate for Linux purposes. This instruction writes
|
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memory, and prior to that, always allocates a cache line.
|
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It is used in two contexts:
|
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- in memcpy, where data is copied in blocks, the first write
|
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of to a block uses movca.l for performance.
|
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- in arch/sh/mm/cache-sh4.c, movcal.l + ocbi combination is used
|
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to flush the cache. Here, the data written by movcal.l is never
|
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written to memory, and the data written is just bogus.
|
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|
| 382 |
To simulate this, we simulate movcal.l, we store the value to memory,
|
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but we also remember the previous content. If we see ocbi, we check
|
| 384 |
if movcal.l for that address was done previously. If so, the write should
|
| 385 |
not have hit the memory, so we restore the previous content.
|
| 386 |
When we see an instruction that is neither movca.l
|
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nor ocbi, the previous content is discarded.
|
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|
| 389 |
To optimize, we only try to flush stores when we're at the start of
|
| 390 |
TB, or if we already saw movca.l in this TB and did not flush stores
|
| 391 |
yet. */
|
| 392 |
if (ctx->has_movcal)
|
| 393 |
{
|
| 394 |
int opcode = ctx->opcode & 0xf0ff; |
| 395 |
if (opcode != 0x0093 /* ocbi */ |
| 396 |
&& opcode != 0x00c3 /* movca.l */) |
| 397 |
{
|
| 398 |
gen_helper_discard_movcal_backup(cpu_env); |
| 399 |
ctx->has_movcal = 0;
|
| 400 |
} |
| 401 |
} |
| 402 |
|
| 403 |
#if 0
|
| 404 |
fprintf(stderr, "Translating opcode 0x%04x\n", ctx->opcode);
|
| 405 |
#endif
|
| 406 |
|
| 407 |
switch (ctx->opcode) {
|
| 408 |
case 0x0019: /* div0u */ |
| 409 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~(SR_M | SR_Q | SR_T)); |
| 410 |
return;
|
| 411 |
case 0x000b: /* rts */ |
| 412 |
CHECK_NOT_DELAY_SLOT |
| 413 |
tcg_gen_mov_i32(cpu_delayed_pc, cpu_pr); |
| 414 |
ctx->flags |= DELAY_SLOT; |
| 415 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 416 |
return;
|
| 417 |
case 0x0028: /* clrmac */ |
| 418 |
tcg_gen_movi_i32(cpu_mach, 0);
|
| 419 |
tcg_gen_movi_i32(cpu_macl, 0);
|
| 420 |
return;
|
| 421 |
case 0x0048: /* clrs */ |
| 422 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_S); |
| 423 |
return;
|
| 424 |
case 0x0008: /* clrt */ |
| 425 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
| 426 |
return;
|
| 427 |
case 0x0038: /* ldtlb */ |
| 428 |
CHECK_PRIVILEGED |
| 429 |
gen_helper_ldtlb(cpu_env); |
| 430 |
return;
|
| 431 |
case 0x002b: /* rte */ |
| 432 |
CHECK_PRIVILEGED |
| 433 |
CHECK_NOT_DELAY_SLOT |
| 434 |
tcg_gen_mov_i32(cpu_sr, cpu_ssr); |
| 435 |
tcg_gen_mov_i32(cpu_delayed_pc, cpu_spc); |
| 436 |
ctx->flags |= DELAY_SLOT; |
| 437 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 438 |
return;
|
| 439 |
case 0x0058: /* sets */ |
| 440 |
tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_S); |
| 441 |
return;
|
| 442 |
case 0x0018: /* sett */ |
| 443 |
tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_T); |
| 444 |
return;
|
| 445 |
case 0xfbfd: /* frchg */ |
| 446 |
tcg_gen_xori_i32(cpu_fpscr, cpu_fpscr, FPSCR_FR); |
| 447 |
ctx->bstate = BS_STOP; |
| 448 |
return;
|
| 449 |
case 0xf3fd: /* fschg */ |
| 450 |
tcg_gen_xori_i32(cpu_fpscr, cpu_fpscr, FPSCR_SZ); |
| 451 |
ctx->bstate = BS_STOP; |
| 452 |
return;
|
| 453 |
case 0x0009: /* nop */ |
| 454 |
return;
|
| 455 |
case 0x001b: /* sleep */ |
| 456 |
CHECK_PRIVILEGED |
| 457 |
tcg_gen_movi_i32(cpu_pc, ctx->pc + 2);
|
| 458 |
gen_helper_sleep(cpu_env); |
| 459 |
return;
|
| 460 |
} |
| 461 |
|
| 462 |
switch (ctx->opcode & 0xf000) { |
| 463 |
case 0x1000: /* mov.l Rm,@(disp,Rn) */ |
| 464 |
{
|
| 465 |
TCGv addr = tcg_temp_new(); |
| 466 |
tcg_gen_addi_i32(addr, REG(B11_8), B3_0 * 4);
|
| 467 |
tcg_gen_qemu_st32(REG(B7_4), addr, ctx->memidx); |
| 468 |
tcg_temp_free(addr); |
| 469 |
} |
| 470 |
return;
|
| 471 |
case 0x5000: /* mov.l @(disp,Rm),Rn */ |
| 472 |
{
|
| 473 |
TCGv addr = tcg_temp_new(); |
| 474 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 4);
|
| 475 |
tcg_gen_qemu_ld32s(REG(B11_8), addr, ctx->memidx); |
| 476 |
tcg_temp_free(addr); |
| 477 |
} |
| 478 |
return;
|
| 479 |
case 0xe000: /* mov #imm,Rn */ |
| 480 |
tcg_gen_movi_i32(REG(B11_8), B7_0s); |
| 481 |
return;
|
| 482 |
case 0x9000: /* mov.w @(disp,PC),Rn */ |
| 483 |
{
|
| 484 |
TCGv addr = tcg_const_i32(ctx->pc + 4 + B7_0 * 2); |
| 485 |
tcg_gen_qemu_ld16s(REG(B11_8), addr, ctx->memidx); |
| 486 |
tcg_temp_free(addr); |
| 487 |
} |
| 488 |
return;
|
| 489 |
case 0xd000: /* mov.l @(disp,PC),Rn */ |
| 490 |
{
|
| 491 |
TCGv addr = tcg_const_i32((ctx->pc + 4 + B7_0 * 4) & ~3); |
| 492 |
tcg_gen_qemu_ld32s(REG(B11_8), addr, ctx->memidx); |
| 493 |
tcg_temp_free(addr); |
| 494 |
} |
| 495 |
return;
|
| 496 |
case 0x7000: /* add #imm,Rn */ |
| 497 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), B7_0s); |
| 498 |
return;
|
| 499 |
case 0xa000: /* bra disp */ |
| 500 |
CHECK_NOT_DELAY_SLOT |
| 501 |
ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2; |
| 502 |
tcg_gen_movi_i32(cpu_delayed_pc, ctx->delayed_pc); |
| 503 |
ctx->flags |= DELAY_SLOT; |
| 504 |
return;
|
| 505 |
case 0xb000: /* bsr disp */ |
| 506 |
CHECK_NOT_DELAY_SLOT |
| 507 |
tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
|
| 508 |
ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2; |
| 509 |
tcg_gen_movi_i32(cpu_delayed_pc, ctx->delayed_pc); |
| 510 |
ctx->flags |= DELAY_SLOT; |
| 511 |
return;
|
| 512 |
} |
| 513 |
|
| 514 |
switch (ctx->opcode & 0xf00f) { |
| 515 |
case 0x6003: /* mov Rm,Rn */ |
| 516 |
tcg_gen_mov_i32(REG(B11_8), REG(B7_4)); |
| 517 |
return;
|
| 518 |
case 0x2000: /* mov.b Rm,@Rn */ |
| 519 |
tcg_gen_qemu_st8(REG(B7_4), REG(B11_8), ctx->memidx); |
| 520 |
return;
|
| 521 |
case 0x2001: /* mov.w Rm,@Rn */ |
| 522 |
tcg_gen_qemu_st16(REG(B7_4), REG(B11_8), ctx->memidx); |
| 523 |
return;
|
| 524 |
case 0x2002: /* mov.l Rm,@Rn */ |
| 525 |
tcg_gen_qemu_st32(REG(B7_4), REG(B11_8), ctx->memidx); |
| 526 |
return;
|
| 527 |
case 0x6000: /* mov.b @Rm,Rn */ |
| 528 |
tcg_gen_qemu_ld8s(REG(B11_8), REG(B7_4), ctx->memidx); |
| 529 |
return;
|
| 530 |
case 0x6001: /* mov.w @Rm,Rn */ |
| 531 |
tcg_gen_qemu_ld16s(REG(B11_8), REG(B7_4), ctx->memidx); |
| 532 |
return;
|
| 533 |
case 0x6002: /* mov.l @Rm,Rn */ |
| 534 |
tcg_gen_qemu_ld32s(REG(B11_8), REG(B7_4), ctx->memidx); |
| 535 |
return;
|
| 536 |
case 0x2004: /* mov.b Rm,@-Rn */ |
| 537 |
{
|
| 538 |
TCGv addr = tcg_temp_new(); |
| 539 |
tcg_gen_subi_i32(addr, REG(B11_8), 1);
|
| 540 |
tcg_gen_qemu_st8(REG(B7_4), addr, ctx->memidx); /* might cause re-execution */
|
| 541 |
tcg_gen_mov_i32(REG(B11_8), addr); /* modify register status */
|
| 542 |
tcg_temp_free(addr); |
| 543 |
} |
| 544 |
return;
|
| 545 |
case 0x2005: /* mov.w Rm,@-Rn */ |
| 546 |
{
|
| 547 |
TCGv addr = tcg_temp_new(); |
| 548 |
tcg_gen_subi_i32(addr, REG(B11_8), 2);
|
| 549 |
tcg_gen_qemu_st16(REG(B7_4), addr, ctx->memidx); |
| 550 |
tcg_gen_mov_i32(REG(B11_8), addr); |
| 551 |
tcg_temp_free(addr); |
| 552 |
} |
| 553 |
return;
|
| 554 |
case 0x2006: /* mov.l Rm,@-Rn */ |
| 555 |
{
|
| 556 |
TCGv addr = tcg_temp_new(); |
| 557 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
| 558 |
tcg_gen_qemu_st32(REG(B7_4), addr, ctx->memidx); |
| 559 |
tcg_gen_mov_i32(REG(B11_8), addr); |
| 560 |
} |
| 561 |
return;
|
| 562 |
case 0x6004: /* mov.b @Rm+,Rn */ |
| 563 |
tcg_gen_qemu_ld8s(REG(B11_8), REG(B7_4), ctx->memidx); |
| 564 |
if ( B11_8 != B7_4 )
|
| 565 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 1);
|
| 566 |
return;
|
| 567 |
case 0x6005: /* mov.w @Rm+,Rn */ |
| 568 |
tcg_gen_qemu_ld16s(REG(B11_8), REG(B7_4), ctx->memidx); |
| 569 |
if ( B11_8 != B7_4 )
|
| 570 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 2);
|
| 571 |
return;
|
| 572 |
case 0x6006: /* mov.l @Rm+,Rn */ |
| 573 |
tcg_gen_qemu_ld32s(REG(B11_8), REG(B7_4), ctx->memidx); |
| 574 |
if ( B11_8 != B7_4 )
|
| 575 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
|
| 576 |
return;
|
| 577 |
case 0x0004: /* mov.b Rm,@(R0,Rn) */ |
| 578 |
{
|
| 579 |
TCGv addr = tcg_temp_new(); |
| 580 |
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
|
| 581 |
tcg_gen_qemu_st8(REG(B7_4), addr, ctx->memidx); |
| 582 |
tcg_temp_free(addr); |
| 583 |
} |
| 584 |
return;
|
| 585 |
case 0x0005: /* mov.w Rm,@(R0,Rn) */ |
| 586 |
{
|
| 587 |
TCGv addr = tcg_temp_new(); |
| 588 |
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
|
| 589 |
tcg_gen_qemu_st16(REG(B7_4), addr, ctx->memidx); |
| 590 |
tcg_temp_free(addr); |
| 591 |
} |
| 592 |
return;
|
| 593 |
case 0x0006: /* mov.l Rm,@(R0,Rn) */ |
| 594 |
{
|
| 595 |
TCGv addr = tcg_temp_new(); |
| 596 |
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
|
| 597 |
tcg_gen_qemu_st32(REG(B7_4), addr, ctx->memidx); |
| 598 |
tcg_temp_free(addr); |
| 599 |
} |
| 600 |
return;
|
| 601 |
case 0x000c: /* mov.b @(R0,Rm),Rn */ |
| 602 |
{
|
| 603 |
TCGv addr = tcg_temp_new(); |
| 604 |
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
|
| 605 |
tcg_gen_qemu_ld8s(REG(B11_8), addr, ctx->memidx); |
| 606 |
tcg_temp_free(addr); |
| 607 |
} |
| 608 |
return;
|
| 609 |
case 0x000d: /* mov.w @(R0,Rm),Rn */ |
| 610 |
{
|
| 611 |
TCGv addr = tcg_temp_new(); |
| 612 |
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
|
| 613 |
tcg_gen_qemu_ld16s(REG(B11_8), addr, ctx->memidx); |
| 614 |
tcg_temp_free(addr); |
| 615 |
} |
| 616 |
return;
|
| 617 |
case 0x000e: /* mov.l @(R0,Rm),Rn */ |
| 618 |
{
|
| 619 |
TCGv addr = tcg_temp_new(); |
| 620 |
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
|
| 621 |
tcg_gen_qemu_ld32s(REG(B11_8), addr, ctx->memidx); |
| 622 |
tcg_temp_free(addr); |
| 623 |
} |
| 624 |
return;
|
| 625 |
case 0x6008: /* swap.b Rm,Rn */ |
| 626 |
{
|
| 627 |
TCGv high, low; |
| 628 |
high = tcg_temp_new(); |
| 629 |
tcg_gen_andi_i32(high, REG(B7_4), 0xffff0000);
|
| 630 |
low = tcg_temp_new(); |
| 631 |
tcg_gen_ext16u_i32(low, REG(B7_4)); |
| 632 |
tcg_gen_bswap16_i32(low, low); |
| 633 |
tcg_gen_or_i32(REG(B11_8), high, low); |
| 634 |
tcg_temp_free(low); |
| 635 |
tcg_temp_free(high); |
| 636 |
} |
| 637 |
return;
|
| 638 |
case 0x6009: /* swap.w Rm,Rn */ |
| 639 |
tcg_gen_rotli_i32(REG(B11_8), REG(B7_4), 16);
|
| 640 |
return;
|
| 641 |
case 0x200d: /* xtrct Rm,Rn */ |
| 642 |
{
|
| 643 |
TCGv high, low; |
| 644 |
high = tcg_temp_new(); |
| 645 |
tcg_gen_shli_i32(high, REG(B7_4), 16);
|
| 646 |
low = tcg_temp_new(); |
| 647 |
tcg_gen_shri_i32(low, REG(B11_8), 16);
|
| 648 |
tcg_gen_or_i32(REG(B11_8), high, low); |
| 649 |
tcg_temp_free(low); |
| 650 |
tcg_temp_free(high); |
| 651 |
} |
| 652 |
return;
|
| 653 |
case 0x300c: /* add Rm,Rn */ |
| 654 |
tcg_gen_add_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
| 655 |
return;
|
| 656 |
case 0x300e: /* addc Rm,Rn */ |
| 657 |
{
|
| 658 |
TCGv t0, t1, t2; |
| 659 |
t0 = tcg_temp_new(); |
| 660 |
tcg_gen_andi_i32(t0, cpu_sr, SR_T); |
| 661 |
t1 = tcg_temp_new(); |
| 662 |
tcg_gen_add_i32(t1, REG(B7_4), REG(B11_8)); |
| 663 |
tcg_gen_add_i32(t0, t0, t1); |
| 664 |
t2 = tcg_temp_new(); |
| 665 |
tcg_gen_setcond_i32(TCG_COND_GTU, t2, REG(B11_8), t1); |
| 666 |
tcg_gen_setcond_i32(TCG_COND_GTU, t1, t1, t0); |
| 667 |
tcg_gen_or_i32(t1, t1, t2); |
| 668 |
tcg_temp_free(t2); |
| 669 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
| 670 |
tcg_gen_or_i32(cpu_sr, cpu_sr, t1); |
| 671 |
tcg_temp_free(t1); |
| 672 |
tcg_gen_mov_i32(REG(B11_8), t0); |
| 673 |
tcg_temp_free(t0); |
| 674 |
} |
| 675 |
return;
|
| 676 |
case 0x300f: /* addv Rm,Rn */ |
| 677 |
{
|
| 678 |
TCGv t0, t1, t2; |
| 679 |
t0 = tcg_temp_new(); |
| 680 |
tcg_gen_add_i32(t0, REG(B7_4), REG(B11_8)); |
| 681 |
t1 = tcg_temp_new(); |
| 682 |
tcg_gen_xor_i32(t1, t0, REG(B11_8)); |
| 683 |
t2 = tcg_temp_new(); |
| 684 |
tcg_gen_xor_i32(t2, REG(B7_4), REG(B11_8)); |
| 685 |
tcg_gen_andc_i32(t1, t1, t2); |
| 686 |
tcg_temp_free(t2); |
| 687 |
tcg_gen_shri_i32(t1, t1, 31);
|
| 688 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
| 689 |
tcg_gen_or_i32(cpu_sr, cpu_sr, t1); |
| 690 |
tcg_temp_free(t1); |
| 691 |
tcg_gen_mov_i32(REG(B7_4), t0); |
| 692 |
tcg_temp_free(t0); |
| 693 |
} |
| 694 |
return;
|
| 695 |
case 0x2009: /* and Rm,Rn */ |
| 696 |
tcg_gen_and_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
| 697 |
return;
|
| 698 |
case 0x3000: /* cmp/eq Rm,Rn */ |
| 699 |
gen_cmp(TCG_COND_EQ, REG(B7_4), REG(B11_8)); |
| 700 |
return;
|
| 701 |
case 0x3003: /* cmp/ge Rm,Rn */ |
| 702 |
gen_cmp(TCG_COND_GE, REG(B7_4), REG(B11_8)); |
| 703 |
return;
|
| 704 |
case 0x3007: /* cmp/gt Rm,Rn */ |
| 705 |
gen_cmp(TCG_COND_GT, REG(B7_4), REG(B11_8)); |
| 706 |
return;
|
| 707 |
case 0x3006: /* cmp/hi Rm,Rn */ |
| 708 |
gen_cmp(TCG_COND_GTU, REG(B7_4), REG(B11_8)); |
| 709 |
return;
|
| 710 |
case 0x3002: /* cmp/hs Rm,Rn */ |
| 711 |
gen_cmp(TCG_COND_GEU, REG(B7_4), REG(B11_8)); |
| 712 |
return;
|
| 713 |
case 0x200c: /* cmp/str Rm,Rn */ |
| 714 |
{
|
| 715 |
TCGv cmp1 = tcg_temp_new(); |
| 716 |
TCGv cmp2 = tcg_temp_new(); |
| 717 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
| 718 |
tcg_gen_xor_i32(cmp1, REG(B7_4), REG(B11_8)); |
| 719 |
tcg_gen_andi_i32(cmp2, cmp1, 0xff000000);
|
| 720 |
tcg_gen_setcondi_i32(TCG_COND_EQ, cmp2, cmp2, 0);
|
| 721 |
tcg_gen_or_i32(cpu_sr, cpu_sr, cmp2); |
| 722 |
tcg_gen_andi_i32(cmp2, cmp1, 0x00ff0000);
|
| 723 |
tcg_gen_setcondi_i32(TCG_COND_EQ, cmp2, cmp2, 0);
|
| 724 |
tcg_gen_or_i32(cpu_sr, cpu_sr, cmp2); |
| 725 |
tcg_gen_andi_i32(cmp2, cmp1, 0x0000ff00);
|
| 726 |
tcg_gen_setcondi_i32(TCG_COND_EQ, cmp2, cmp2, 0);
|
| 727 |
tcg_gen_or_i32(cpu_sr, cpu_sr, cmp2); |
| 728 |
tcg_gen_andi_i32(cmp2, cmp1, 0x000000ff);
|
| 729 |
tcg_gen_setcondi_i32(TCG_COND_EQ, cmp2, cmp2, 0);
|
| 730 |
tcg_gen_or_i32(cpu_sr, cpu_sr, cmp2); |
| 731 |
tcg_temp_free(cmp2); |
| 732 |
tcg_temp_free(cmp1); |
| 733 |
} |
| 734 |
return;
|
| 735 |
case 0x2007: /* div0s Rm,Rn */ |
| 736 |
{
|
| 737 |
gen_copy_bit_i32(cpu_sr, 8, REG(B11_8), 31); /* SR_Q */ |
| 738 |
gen_copy_bit_i32(cpu_sr, 9, REG(B7_4), 31); /* SR_M */ |
| 739 |
TCGv val = tcg_temp_new(); |
| 740 |
tcg_gen_xor_i32(val, REG(B7_4), REG(B11_8)); |
| 741 |
gen_copy_bit_i32(cpu_sr, 0, val, 31); /* SR_T */ |
| 742 |
tcg_temp_free(val); |
| 743 |
} |
| 744 |
return;
|
| 745 |
case 0x3004: /* div1 Rm,Rn */ |
| 746 |
gen_helper_div1(REG(B11_8), cpu_env, REG(B7_4), REG(B11_8)); |
| 747 |
return;
|
| 748 |
case 0x300d: /* dmuls.l Rm,Rn */ |
| 749 |
tcg_gen_muls2_i32(cpu_macl, cpu_mach, REG(B7_4), REG(B11_8)); |
| 750 |
return;
|
| 751 |
case 0x3005: /* dmulu.l Rm,Rn */ |
| 752 |
tcg_gen_mulu2_i32(cpu_macl, cpu_mach, REG(B7_4), REG(B11_8)); |
| 753 |
return;
|
| 754 |
case 0x600e: /* exts.b Rm,Rn */ |
| 755 |
tcg_gen_ext8s_i32(REG(B11_8), REG(B7_4)); |
| 756 |
return;
|
| 757 |
case 0x600f: /* exts.w Rm,Rn */ |
| 758 |
tcg_gen_ext16s_i32(REG(B11_8), REG(B7_4)); |
| 759 |
return;
|
| 760 |
case 0x600c: /* extu.b Rm,Rn */ |
| 761 |
tcg_gen_ext8u_i32(REG(B11_8), REG(B7_4)); |
| 762 |
return;
|
| 763 |
case 0x600d: /* extu.w Rm,Rn */ |
| 764 |
tcg_gen_ext16u_i32(REG(B11_8), REG(B7_4)); |
| 765 |
return;
|
| 766 |
case 0x000f: /* mac.l @Rm+,@Rn+ */ |
| 767 |
{
|
| 768 |
TCGv arg0, arg1; |
| 769 |
arg0 = tcg_temp_new(); |
| 770 |
tcg_gen_qemu_ld32s(arg0, REG(B7_4), ctx->memidx); |
| 771 |
arg1 = tcg_temp_new(); |
| 772 |
tcg_gen_qemu_ld32s(arg1, REG(B11_8), ctx->memidx); |
| 773 |
gen_helper_macl(cpu_env, arg0, arg1); |
| 774 |
tcg_temp_free(arg1); |
| 775 |
tcg_temp_free(arg0); |
| 776 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
|
| 777 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
| 778 |
} |
| 779 |
return;
|
| 780 |
case 0x400f: /* mac.w @Rm+,@Rn+ */ |
| 781 |
{
|
| 782 |
TCGv arg0, arg1; |
| 783 |
arg0 = tcg_temp_new(); |
| 784 |
tcg_gen_qemu_ld32s(arg0, REG(B7_4), ctx->memidx); |
| 785 |
arg1 = tcg_temp_new(); |
| 786 |
tcg_gen_qemu_ld32s(arg1, REG(B11_8), ctx->memidx); |
| 787 |
gen_helper_macw(cpu_env, arg0, arg1); |
| 788 |
tcg_temp_free(arg1); |
| 789 |
tcg_temp_free(arg0); |
| 790 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 2);
|
| 791 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 2);
|
| 792 |
} |
| 793 |
return;
|
| 794 |
case 0x0007: /* mul.l Rm,Rn */ |
| 795 |
tcg_gen_mul_i32(cpu_macl, REG(B7_4), REG(B11_8)); |
| 796 |
return;
|
| 797 |
case 0x200f: /* muls.w Rm,Rn */ |
| 798 |
{
|
| 799 |
TCGv arg0, arg1; |
| 800 |
arg0 = tcg_temp_new(); |
| 801 |
tcg_gen_ext16s_i32(arg0, REG(B7_4)); |
| 802 |
arg1 = tcg_temp_new(); |
| 803 |
tcg_gen_ext16s_i32(arg1, REG(B11_8)); |
| 804 |
tcg_gen_mul_i32(cpu_macl, arg0, arg1); |
| 805 |
tcg_temp_free(arg1); |
| 806 |
tcg_temp_free(arg0); |
| 807 |
} |
| 808 |
return;
|
| 809 |
case 0x200e: /* mulu.w Rm,Rn */ |
| 810 |
{
|
| 811 |
TCGv arg0, arg1; |
| 812 |
arg0 = tcg_temp_new(); |
| 813 |
tcg_gen_ext16u_i32(arg0, REG(B7_4)); |
| 814 |
arg1 = tcg_temp_new(); |
| 815 |
tcg_gen_ext16u_i32(arg1, REG(B11_8)); |
| 816 |
tcg_gen_mul_i32(cpu_macl, arg0, arg1); |
| 817 |
tcg_temp_free(arg1); |
| 818 |
tcg_temp_free(arg0); |
| 819 |
} |
| 820 |
return;
|
| 821 |
case 0x600b: /* neg Rm,Rn */ |
| 822 |
tcg_gen_neg_i32(REG(B11_8), REG(B7_4)); |
| 823 |
return;
|
| 824 |
case 0x600a: /* negc Rm,Rn */ |
| 825 |
{
|
| 826 |
TCGv t0, t1; |
| 827 |
t0 = tcg_temp_new(); |
| 828 |
tcg_gen_neg_i32(t0, REG(B7_4)); |
| 829 |
t1 = tcg_temp_new(); |
| 830 |
tcg_gen_andi_i32(t1, cpu_sr, SR_T); |
| 831 |
tcg_gen_sub_i32(REG(B11_8), t0, t1); |
| 832 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
| 833 |
tcg_gen_setcondi_i32(TCG_COND_GTU, t1, t0, 0);
|
| 834 |
tcg_gen_or_i32(cpu_sr, cpu_sr, t1); |
| 835 |
tcg_gen_setcond_i32(TCG_COND_GTU, t1, REG(B11_8), t0); |
| 836 |
tcg_gen_or_i32(cpu_sr, cpu_sr, t1); |
| 837 |
tcg_temp_free(t0); |
| 838 |
tcg_temp_free(t1); |
| 839 |
} |
| 840 |
return;
|
| 841 |
case 0x6007: /* not Rm,Rn */ |
| 842 |
tcg_gen_not_i32(REG(B11_8), REG(B7_4)); |
| 843 |
return;
|
| 844 |
case 0x200b: /* or Rm,Rn */ |
| 845 |
tcg_gen_or_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
| 846 |
return;
|
| 847 |
case 0x400c: /* shad Rm,Rn */ |
| 848 |
{
|
| 849 |
int label1 = gen_new_label();
|
| 850 |
int label2 = gen_new_label();
|
| 851 |
int label3 = gen_new_label();
|
| 852 |
int label4 = gen_new_label();
|
| 853 |
TCGv shift; |
| 854 |
tcg_gen_brcondi_i32(TCG_COND_LT, REG(B7_4), 0, label1);
|
| 855 |
/* Rm positive, shift to the left */
|
| 856 |
shift = tcg_temp_new(); |
| 857 |
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
|
| 858 |
tcg_gen_shl_i32(REG(B11_8), REG(B11_8), shift); |
| 859 |
tcg_temp_free(shift); |
| 860 |
tcg_gen_br(label4); |
| 861 |
/* Rm negative, shift to the right */
|
| 862 |
gen_set_label(label1); |
| 863 |
shift = tcg_temp_new(); |
| 864 |
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
|
| 865 |
tcg_gen_brcondi_i32(TCG_COND_EQ, shift, 0, label2);
|
| 866 |
tcg_gen_not_i32(shift, REG(B7_4)); |
| 867 |
tcg_gen_andi_i32(shift, shift, 0x1f);
|
| 868 |
tcg_gen_addi_i32(shift, shift, 1);
|
| 869 |
tcg_gen_sar_i32(REG(B11_8), REG(B11_8), shift); |
| 870 |
tcg_temp_free(shift); |
| 871 |
tcg_gen_br(label4); |
| 872 |
/* Rm = -32 */
|
| 873 |
gen_set_label(label2); |
| 874 |
tcg_gen_brcondi_i32(TCG_COND_LT, REG(B11_8), 0, label3);
|
| 875 |
tcg_gen_movi_i32(REG(B11_8), 0);
|
| 876 |
tcg_gen_br(label4); |
| 877 |
gen_set_label(label3); |
| 878 |
tcg_gen_movi_i32(REG(B11_8), 0xffffffff);
|
| 879 |
gen_set_label(label4); |
| 880 |
} |
| 881 |
return;
|
| 882 |
case 0x400d: /* shld Rm,Rn */ |
| 883 |
{
|
| 884 |
int label1 = gen_new_label();
|
| 885 |
int label2 = gen_new_label();
|
| 886 |
int label3 = gen_new_label();
|
| 887 |
TCGv shift; |
| 888 |
tcg_gen_brcondi_i32(TCG_COND_LT, REG(B7_4), 0, label1);
|
| 889 |
/* Rm positive, shift to the left */
|
| 890 |
shift = tcg_temp_new(); |
| 891 |
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
|
| 892 |
tcg_gen_shl_i32(REG(B11_8), REG(B11_8), shift); |
| 893 |
tcg_temp_free(shift); |
| 894 |
tcg_gen_br(label3); |
| 895 |
/* Rm negative, shift to the right */
|
| 896 |
gen_set_label(label1); |
| 897 |
shift = tcg_temp_new(); |
| 898 |
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
|
| 899 |
tcg_gen_brcondi_i32(TCG_COND_EQ, shift, 0, label2);
|
| 900 |
tcg_gen_not_i32(shift, REG(B7_4)); |
| 901 |
tcg_gen_andi_i32(shift, shift, 0x1f);
|
| 902 |
tcg_gen_addi_i32(shift, shift, 1);
|
| 903 |
tcg_gen_shr_i32(REG(B11_8), REG(B11_8), shift); |
| 904 |
tcg_temp_free(shift); |
| 905 |
tcg_gen_br(label3); |
| 906 |
/* Rm = -32 */
|
| 907 |
gen_set_label(label2); |
| 908 |
tcg_gen_movi_i32(REG(B11_8), 0);
|
| 909 |
gen_set_label(label3); |
| 910 |
} |
| 911 |
return;
|
| 912 |
case 0x3008: /* sub Rm,Rn */ |
| 913 |
tcg_gen_sub_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
| 914 |
return;
|
| 915 |
case 0x300a: /* subc Rm,Rn */ |
| 916 |
{
|
| 917 |
TCGv t0, t1, t2; |
| 918 |
t0 = tcg_temp_new(); |
| 919 |
tcg_gen_andi_i32(t0, cpu_sr, SR_T); |
| 920 |
t1 = tcg_temp_new(); |
| 921 |
tcg_gen_sub_i32(t1, REG(B11_8), REG(B7_4)); |
| 922 |
tcg_gen_sub_i32(t0, t1, t0); |
| 923 |
t2 = tcg_temp_new(); |
| 924 |
tcg_gen_setcond_i32(TCG_COND_LTU, t2, REG(B11_8), t1); |
| 925 |
tcg_gen_setcond_i32(TCG_COND_LTU, t1, t1, t0); |
| 926 |
tcg_gen_or_i32(t1, t1, t2); |
| 927 |
tcg_temp_free(t2); |
| 928 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
| 929 |
tcg_gen_or_i32(cpu_sr, cpu_sr, t1); |
| 930 |
tcg_temp_free(t1); |
| 931 |
tcg_gen_mov_i32(REG(B11_8), t0); |
| 932 |
tcg_temp_free(t0); |
| 933 |
} |
| 934 |
return;
|
| 935 |
case 0x300b: /* subv Rm,Rn */ |
| 936 |
{
|
| 937 |
TCGv t0, t1, t2; |
| 938 |
t0 = tcg_temp_new(); |
| 939 |
tcg_gen_sub_i32(t0, REG(B11_8), REG(B7_4)); |
| 940 |
t1 = tcg_temp_new(); |
| 941 |
tcg_gen_xor_i32(t1, t0, REG(B7_4)); |
| 942 |
t2 = tcg_temp_new(); |
| 943 |
tcg_gen_xor_i32(t2, REG(B11_8), REG(B7_4)); |
| 944 |
tcg_gen_and_i32(t1, t1, t2); |
| 945 |
tcg_temp_free(t2); |
| 946 |
tcg_gen_shri_i32(t1, t1, 31);
|
| 947 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
| 948 |
tcg_gen_or_i32(cpu_sr, cpu_sr, t1); |
| 949 |
tcg_temp_free(t1); |
| 950 |
tcg_gen_mov_i32(REG(B11_8), t0); |
| 951 |
tcg_temp_free(t0); |
| 952 |
} |
| 953 |
return;
|
| 954 |
case 0x2008: /* tst Rm,Rn */ |
| 955 |
{
|
| 956 |
TCGv val = tcg_temp_new(); |
| 957 |
tcg_gen_and_i32(val, REG(B7_4), REG(B11_8)); |
| 958 |
gen_cmp_imm(TCG_COND_EQ, val, 0);
|
| 959 |
tcg_temp_free(val); |
| 960 |
} |
| 961 |
return;
|
| 962 |
case 0x200a: /* xor Rm,Rn */ |
| 963 |
tcg_gen_xor_i32(REG(B11_8), REG(B11_8), REG(B7_4)); |
| 964 |
return;
|
| 965 |
case 0xf00c: /* fmov {F,D,X}Rm,{F,D,X}Rn - FPSCR: Nothing */ |
| 966 |
CHECK_FPU_ENABLED |
| 967 |
if (ctx->flags & FPSCR_SZ) {
|
| 968 |
TCGv_i64 fp = tcg_temp_new_i64(); |
| 969 |
gen_load_fpr64(fp, XREG(B7_4)); |
| 970 |
gen_store_fpr64(fp, XREG(B11_8)); |
| 971 |
tcg_temp_free_i64(fp); |
| 972 |
} else {
|
| 973 |
tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
| 974 |
} |
| 975 |
return;
|
| 976 |
case 0xf00a: /* fmov {F,D,X}Rm,@Rn - FPSCR: Nothing */ |
| 977 |
CHECK_FPU_ENABLED |
| 978 |
if (ctx->flags & FPSCR_SZ) {
|
| 979 |
TCGv addr_hi = tcg_temp_new(); |
| 980 |
int fr = XREG(B7_4);
|
| 981 |
tcg_gen_addi_i32(addr_hi, REG(B11_8), 4);
|
| 982 |
tcg_gen_qemu_st32(cpu_fregs[fr ], REG(B11_8), ctx->memidx); |
| 983 |
tcg_gen_qemu_st32(cpu_fregs[fr+1], addr_hi, ctx->memidx);
|
| 984 |
tcg_temp_free(addr_hi); |
| 985 |
} else {
|
| 986 |
tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], REG(B11_8), ctx->memidx); |
| 987 |
} |
| 988 |
return;
|
| 989 |
case 0xf008: /* fmov @Rm,{F,D,X}Rn - FPSCR: Nothing */ |
| 990 |
CHECK_FPU_ENABLED |
| 991 |
if (ctx->flags & FPSCR_SZ) {
|
| 992 |
TCGv addr_hi = tcg_temp_new(); |
| 993 |
int fr = XREG(B11_8);
|
| 994 |
tcg_gen_addi_i32(addr_hi, REG(B7_4), 4);
|
| 995 |
tcg_gen_qemu_ld32u(cpu_fregs[fr ], REG(B7_4), ctx->memidx); |
| 996 |
tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr_hi, ctx->memidx);
|
| 997 |
tcg_temp_free(addr_hi); |
| 998 |
} else {
|
| 999 |
tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], REG(B7_4), ctx->memidx); |
| 1000 |
} |
| 1001 |
return;
|
| 1002 |
case 0xf009: /* fmov @Rm+,{F,D,X}Rn - FPSCR: Nothing */ |
| 1003 |
CHECK_FPU_ENABLED |
| 1004 |
if (ctx->flags & FPSCR_SZ) {
|
| 1005 |
TCGv addr_hi = tcg_temp_new(); |
| 1006 |
int fr = XREG(B11_8);
|
| 1007 |
tcg_gen_addi_i32(addr_hi, REG(B7_4), 4);
|
| 1008 |
tcg_gen_qemu_ld32u(cpu_fregs[fr ], REG(B7_4), ctx->memidx); |
| 1009 |
tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr_hi, ctx->memidx);
|
| 1010 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 8);
|
| 1011 |
tcg_temp_free(addr_hi); |
| 1012 |
} else {
|
| 1013 |
tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], REG(B7_4), ctx->memidx); |
| 1014 |
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
|
| 1015 |
} |
| 1016 |
return;
|
| 1017 |
case 0xf00b: /* fmov {F,D,X}Rm,@-Rn - FPSCR: Nothing */ |
| 1018 |
CHECK_FPU_ENABLED |
| 1019 |
if (ctx->flags & FPSCR_SZ) {
|
| 1020 |
TCGv addr = tcg_temp_new_i32(); |
| 1021 |
int fr = XREG(B7_4);
|
| 1022 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
| 1023 |
tcg_gen_qemu_st32(cpu_fregs[fr+1], addr, ctx->memidx);
|
| 1024 |
tcg_gen_subi_i32(addr, addr, 4);
|
| 1025 |
tcg_gen_qemu_st32(cpu_fregs[fr ], addr, ctx->memidx); |
| 1026 |
tcg_gen_mov_i32(REG(B11_8), addr); |
| 1027 |
tcg_temp_free(addr); |
| 1028 |
} else {
|
| 1029 |
TCGv addr; |
| 1030 |
addr = tcg_temp_new_i32(); |
| 1031 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
| 1032 |
tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], addr, ctx->memidx); |
| 1033 |
tcg_gen_mov_i32(REG(B11_8), addr); |
| 1034 |
tcg_temp_free(addr); |
| 1035 |
} |
| 1036 |
return;
|
| 1037 |
case 0xf006: /* fmov @(R0,Rm),{F,D,X}Rm - FPSCR: Nothing */ |
| 1038 |
CHECK_FPU_ENABLED |
| 1039 |
{
|
| 1040 |
TCGv addr = tcg_temp_new_i32(); |
| 1041 |
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
|
| 1042 |
if (ctx->flags & FPSCR_SZ) {
|
| 1043 |
int fr = XREG(B11_8);
|
| 1044 |
tcg_gen_qemu_ld32u(cpu_fregs[fr ], addr, ctx->memidx); |
| 1045 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 1046 |
tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr, ctx->memidx);
|
| 1047 |
} else {
|
| 1048 |
tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], addr, ctx->memidx); |
| 1049 |
} |
| 1050 |
tcg_temp_free(addr); |
| 1051 |
} |
| 1052 |
return;
|
| 1053 |
case 0xf007: /* fmov {F,D,X}Rn,@(R0,Rn) - FPSCR: Nothing */ |
| 1054 |
CHECK_FPU_ENABLED |
| 1055 |
{
|
| 1056 |
TCGv addr = tcg_temp_new(); |
| 1057 |
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
|
| 1058 |
if (ctx->flags & FPSCR_SZ) {
|
| 1059 |
int fr = XREG(B7_4);
|
| 1060 |
tcg_gen_qemu_ld32u(cpu_fregs[fr ], addr, ctx->memidx); |
| 1061 |
tcg_gen_addi_i32(addr, addr, 4);
|
| 1062 |
tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr, ctx->memidx);
|
| 1063 |
} else {
|
| 1064 |
tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], addr, ctx->memidx); |
| 1065 |
} |
| 1066 |
tcg_temp_free(addr); |
| 1067 |
} |
| 1068 |
return;
|
| 1069 |
case 0xf000: /* fadd Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */ |
| 1070 |
case 0xf001: /* fsub Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */ |
| 1071 |
case 0xf002: /* fmul Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */ |
| 1072 |
case 0xf003: /* fdiv Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */ |
| 1073 |
case 0xf004: /* fcmp/eq Rm,Rn - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */ |
| 1074 |
case 0xf005: /* fcmp/gt Rm,Rn - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */ |
| 1075 |
{
|
| 1076 |
CHECK_FPU_ENABLED |
| 1077 |
if (ctx->flags & FPSCR_PR) {
|
| 1078 |
TCGv_i64 fp0, fp1; |
| 1079 |
|
| 1080 |
if (ctx->opcode & 0x0110) |
| 1081 |
break; /* illegal instruction */ |
| 1082 |
fp0 = tcg_temp_new_i64(); |
| 1083 |
fp1 = tcg_temp_new_i64(); |
| 1084 |
gen_load_fpr64(fp0, DREG(B11_8)); |
| 1085 |
gen_load_fpr64(fp1, DREG(B7_4)); |
| 1086 |
switch (ctx->opcode & 0xf00f) { |
| 1087 |
case 0xf000: /* fadd Rm,Rn */ |
| 1088 |
gen_helper_fadd_DT(fp0, cpu_env, fp0, fp1); |
| 1089 |
break;
|
| 1090 |
case 0xf001: /* fsub Rm,Rn */ |
| 1091 |
gen_helper_fsub_DT(fp0, cpu_env, fp0, fp1); |
| 1092 |
break;
|
| 1093 |
case 0xf002: /* fmul Rm,Rn */ |
| 1094 |
gen_helper_fmul_DT(fp0, cpu_env, fp0, fp1); |
| 1095 |
break;
|
| 1096 |
case 0xf003: /* fdiv Rm,Rn */ |
| 1097 |
gen_helper_fdiv_DT(fp0, cpu_env, fp0, fp1); |
| 1098 |
break;
|
| 1099 |
case 0xf004: /* fcmp/eq Rm,Rn */ |
| 1100 |
gen_helper_fcmp_eq_DT(cpu_env, fp0, fp1); |
| 1101 |
return;
|
| 1102 |
case 0xf005: /* fcmp/gt Rm,Rn */ |
| 1103 |
gen_helper_fcmp_gt_DT(cpu_env, fp0, fp1); |
| 1104 |
return;
|
| 1105 |
} |
| 1106 |
gen_store_fpr64(fp0, DREG(B11_8)); |
| 1107 |
tcg_temp_free_i64(fp0); |
| 1108 |
tcg_temp_free_i64(fp1); |
| 1109 |
} else {
|
| 1110 |
switch (ctx->opcode & 0xf00f) { |
| 1111 |
case 0xf000: /* fadd Rm,Rn */ |
| 1112 |
gen_helper_fadd_FT(cpu_fregs[FREG(B11_8)], cpu_env, |
| 1113 |
cpu_fregs[FREG(B11_8)], |
| 1114 |
cpu_fregs[FREG(B7_4)]); |
| 1115 |
break;
|
| 1116 |
case 0xf001: /* fsub Rm,Rn */ |
| 1117 |
gen_helper_fsub_FT(cpu_fregs[FREG(B11_8)], cpu_env, |
| 1118 |
cpu_fregs[FREG(B11_8)], |
| 1119 |
cpu_fregs[FREG(B7_4)]); |
| 1120 |
break;
|
| 1121 |
case 0xf002: /* fmul Rm,Rn */ |
| 1122 |
gen_helper_fmul_FT(cpu_fregs[FREG(B11_8)], cpu_env, |
| 1123 |
cpu_fregs[FREG(B11_8)], |
| 1124 |
cpu_fregs[FREG(B7_4)]); |
| 1125 |
break;
|
| 1126 |
case 0xf003: /* fdiv Rm,Rn */ |
| 1127 |
gen_helper_fdiv_FT(cpu_fregs[FREG(B11_8)], cpu_env, |
| 1128 |
cpu_fregs[FREG(B11_8)], |
| 1129 |
cpu_fregs[FREG(B7_4)]); |
| 1130 |
break;
|
| 1131 |
case 0xf004: /* fcmp/eq Rm,Rn */ |
| 1132 |
gen_helper_fcmp_eq_FT(cpu_env, cpu_fregs[FREG(B11_8)], |
| 1133 |
cpu_fregs[FREG(B7_4)]); |
| 1134 |
return;
|
| 1135 |
case 0xf005: /* fcmp/gt Rm,Rn */ |
| 1136 |
gen_helper_fcmp_gt_FT(cpu_env, cpu_fregs[FREG(B11_8)], |
| 1137 |
cpu_fregs[FREG(B7_4)]); |
| 1138 |
return;
|
| 1139 |
} |
| 1140 |
} |
| 1141 |
} |
| 1142 |
return;
|
| 1143 |
case 0xf00e: /* fmac FR0,RM,Rn */ |
| 1144 |
{
|
| 1145 |
CHECK_FPU_ENABLED |
| 1146 |
if (ctx->flags & FPSCR_PR) {
|
| 1147 |
break; /* illegal instruction */ |
| 1148 |
} else {
|
| 1149 |
gen_helper_fmac_FT(cpu_fregs[FREG(B11_8)], cpu_env, |
| 1150 |
cpu_fregs[FREG(0)], cpu_fregs[FREG(B7_4)],
|
| 1151 |
cpu_fregs[FREG(B11_8)]); |
| 1152 |
return;
|
| 1153 |
} |
| 1154 |
} |
| 1155 |
} |
| 1156 |
|
| 1157 |
switch (ctx->opcode & 0xff00) { |
| 1158 |
case 0xc900: /* and #imm,R0 */ |
| 1159 |
tcg_gen_andi_i32(REG(0), REG(0), B7_0); |
| 1160 |
return;
|
| 1161 |
case 0xcd00: /* and.b #imm,@(R0,GBR) */ |
| 1162 |
{
|
| 1163 |
TCGv addr, val; |
| 1164 |
addr = tcg_temp_new(); |
| 1165 |
tcg_gen_add_i32(addr, REG(0), cpu_gbr);
|
| 1166 |
val = tcg_temp_new(); |
| 1167 |
tcg_gen_qemu_ld8u(val, addr, ctx->memidx); |
| 1168 |
tcg_gen_andi_i32(val, val, B7_0); |
| 1169 |
tcg_gen_qemu_st8(val, addr, ctx->memidx); |
| 1170 |
tcg_temp_free(val); |
| 1171 |
tcg_temp_free(addr); |
| 1172 |
} |
| 1173 |
return;
|
| 1174 |
case 0x8b00: /* bf label */ |
| 1175 |
CHECK_NOT_DELAY_SLOT |
| 1176 |
gen_conditional_jump(ctx, ctx->pc + 2,
|
| 1177 |
ctx->pc + 4 + B7_0s * 2); |
| 1178 |
ctx->bstate = BS_BRANCH; |
| 1179 |
return;
|
| 1180 |
case 0x8f00: /* bf/s label */ |
| 1181 |
CHECK_NOT_DELAY_SLOT |
| 1182 |
gen_branch_slot(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2, 0); |
| 1183 |
ctx->flags |= DELAY_SLOT_CONDITIONAL; |
| 1184 |
return;
|
| 1185 |
case 0x8900: /* bt label */ |
| 1186 |
CHECK_NOT_DELAY_SLOT |
| 1187 |
gen_conditional_jump(ctx, ctx->pc + 4 + B7_0s * 2, |
| 1188 |
ctx->pc + 2);
|
| 1189 |
ctx->bstate = BS_BRANCH; |
| 1190 |
return;
|
| 1191 |
case 0x8d00: /* bt/s label */ |
| 1192 |
CHECK_NOT_DELAY_SLOT |
| 1193 |
gen_branch_slot(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2, 1); |
| 1194 |
ctx->flags |= DELAY_SLOT_CONDITIONAL; |
| 1195 |
return;
|
| 1196 |
case 0x8800: /* cmp/eq #imm,R0 */ |
| 1197 |
gen_cmp_imm(TCG_COND_EQ, REG(0), B7_0s);
|
| 1198 |
return;
|
| 1199 |
case 0xc400: /* mov.b @(disp,GBR),R0 */ |
| 1200 |
{
|
| 1201 |
TCGv addr = tcg_temp_new(); |
| 1202 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0); |
| 1203 |
tcg_gen_qemu_ld8s(REG(0), addr, ctx->memidx);
|
| 1204 |
tcg_temp_free(addr); |
| 1205 |
} |
| 1206 |
return;
|
| 1207 |
case 0xc500: /* mov.w @(disp,GBR),R0 */ |
| 1208 |
{
|
| 1209 |
TCGv addr = tcg_temp_new(); |
| 1210 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 2);
|
| 1211 |
tcg_gen_qemu_ld16s(REG(0), addr, ctx->memidx);
|
| 1212 |
tcg_temp_free(addr); |
| 1213 |
} |
| 1214 |
return;
|
| 1215 |
case 0xc600: /* mov.l @(disp,GBR),R0 */ |
| 1216 |
{
|
| 1217 |
TCGv addr = tcg_temp_new(); |
| 1218 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 4);
|
| 1219 |
tcg_gen_qemu_ld32s(REG(0), addr, ctx->memidx);
|
| 1220 |
tcg_temp_free(addr); |
| 1221 |
} |
| 1222 |
return;
|
| 1223 |
case 0xc000: /* mov.b R0,@(disp,GBR) */ |
| 1224 |
{
|
| 1225 |
TCGv addr = tcg_temp_new(); |
| 1226 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0); |
| 1227 |
tcg_gen_qemu_st8(REG(0), addr, ctx->memidx);
|
| 1228 |
tcg_temp_free(addr); |
| 1229 |
} |
| 1230 |
return;
|
| 1231 |
case 0xc100: /* mov.w R0,@(disp,GBR) */ |
| 1232 |
{
|
| 1233 |
TCGv addr = tcg_temp_new(); |
| 1234 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 2);
|
| 1235 |
tcg_gen_qemu_st16(REG(0), addr, ctx->memidx);
|
| 1236 |
tcg_temp_free(addr); |
| 1237 |
} |
| 1238 |
return;
|
| 1239 |
case 0xc200: /* mov.l R0,@(disp,GBR) */ |
| 1240 |
{
|
| 1241 |
TCGv addr = tcg_temp_new(); |
| 1242 |
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 4);
|
| 1243 |
tcg_gen_qemu_st32(REG(0), addr, ctx->memidx);
|
| 1244 |
tcg_temp_free(addr); |
| 1245 |
} |
| 1246 |
return;
|
| 1247 |
case 0x8000: /* mov.b R0,@(disp,Rn) */ |
| 1248 |
{
|
| 1249 |
TCGv addr = tcg_temp_new(); |
| 1250 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0); |
| 1251 |
tcg_gen_qemu_st8(REG(0), addr, ctx->memidx);
|
| 1252 |
tcg_temp_free(addr); |
| 1253 |
} |
| 1254 |
return;
|
| 1255 |
case 0x8100: /* mov.w R0,@(disp,Rn) */ |
| 1256 |
{
|
| 1257 |
TCGv addr = tcg_temp_new(); |
| 1258 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 2);
|
| 1259 |
tcg_gen_qemu_st16(REG(0), addr, ctx->memidx);
|
| 1260 |
tcg_temp_free(addr); |
| 1261 |
} |
| 1262 |
return;
|
| 1263 |
case 0x8400: /* mov.b @(disp,Rn),R0 */ |
| 1264 |
{
|
| 1265 |
TCGv addr = tcg_temp_new(); |
| 1266 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0); |
| 1267 |
tcg_gen_qemu_ld8s(REG(0), addr, ctx->memidx);
|
| 1268 |
tcg_temp_free(addr); |
| 1269 |
} |
| 1270 |
return;
|
| 1271 |
case 0x8500: /* mov.w @(disp,Rn),R0 */ |
| 1272 |
{
|
| 1273 |
TCGv addr = tcg_temp_new(); |
| 1274 |
tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 2);
|
| 1275 |
tcg_gen_qemu_ld16s(REG(0), addr, ctx->memidx);
|
| 1276 |
tcg_temp_free(addr); |
| 1277 |
} |
| 1278 |
return;
|
| 1279 |
case 0xc700: /* mova @(disp,PC),R0 */ |
| 1280 |
tcg_gen_movi_i32(REG(0), ((ctx->pc & 0xfffffffc) + 4 + B7_0 * 4) & ~3); |
| 1281 |
return;
|
| 1282 |
case 0xcb00: /* or #imm,R0 */ |
| 1283 |
tcg_gen_ori_i32(REG(0), REG(0), B7_0); |
| 1284 |
return;
|
| 1285 |
case 0xcf00: /* or.b #imm,@(R0,GBR) */ |
| 1286 |
{
|
| 1287 |
TCGv addr, val; |
| 1288 |
addr = tcg_temp_new(); |
| 1289 |
tcg_gen_add_i32(addr, REG(0), cpu_gbr);
|
| 1290 |
val = tcg_temp_new(); |
| 1291 |
tcg_gen_qemu_ld8u(val, addr, ctx->memidx); |
| 1292 |
tcg_gen_ori_i32(val, val, B7_0); |
| 1293 |
tcg_gen_qemu_st8(val, addr, ctx->memidx); |
| 1294 |
tcg_temp_free(val); |
| 1295 |
tcg_temp_free(addr); |
| 1296 |
} |
| 1297 |
return;
|
| 1298 |
case 0xc300: /* trapa #imm */ |
| 1299 |
{
|
| 1300 |
TCGv imm; |
| 1301 |
CHECK_NOT_DELAY_SLOT |
| 1302 |
tcg_gen_movi_i32(cpu_pc, ctx->pc); |
| 1303 |
imm = tcg_const_i32(B7_0); |
| 1304 |
gen_helper_trapa(cpu_env, imm); |
| 1305 |
tcg_temp_free(imm); |
| 1306 |
ctx->bstate = BS_BRANCH; |
| 1307 |
} |
| 1308 |
return;
|
| 1309 |
case 0xc800: /* tst #imm,R0 */ |
| 1310 |
{
|
| 1311 |
TCGv val = tcg_temp_new(); |
| 1312 |
tcg_gen_andi_i32(val, REG(0), B7_0);
|
| 1313 |
gen_cmp_imm(TCG_COND_EQ, val, 0);
|
| 1314 |
tcg_temp_free(val); |
| 1315 |
} |
| 1316 |
return;
|
| 1317 |
case 0xcc00: /* tst.b #imm,@(R0,GBR) */ |
| 1318 |
{
|
| 1319 |
TCGv val = tcg_temp_new(); |
| 1320 |
tcg_gen_add_i32(val, REG(0), cpu_gbr);
|
| 1321 |
tcg_gen_qemu_ld8u(val, val, ctx->memidx); |
| 1322 |
tcg_gen_andi_i32(val, val, B7_0); |
| 1323 |
gen_cmp_imm(TCG_COND_EQ, val, 0);
|
| 1324 |
tcg_temp_free(val); |
| 1325 |
} |
| 1326 |
return;
|
| 1327 |
case 0xca00: /* xor #imm,R0 */ |
| 1328 |
tcg_gen_xori_i32(REG(0), REG(0), B7_0); |
| 1329 |
return;
|
| 1330 |
case 0xce00: /* xor.b #imm,@(R0,GBR) */ |
| 1331 |
{
|
| 1332 |
TCGv addr, val; |
| 1333 |
addr = tcg_temp_new(); |
| 1334 |
tcg_gen_add_i32(addr, REG(0), cpu_gbr);
|
| 1335 |
val = tcg_temp_new(); |
| 1336 |
tcg_gen_qemu_ld8u(val, addr, ctx->memidx); |
| 1337 |
tcg_gen_xori_i32(val, val, B7_0); |
| 1338 |
tcg_gen_qemu_st8(val, addr, ctx->memidx); |
| 1339 |
tcg_temp_free(val); |
| 1340 |
tcg_temp_free(addr); |
| 1341 |
} |
| 1342 |
return;
|
| 1343 |
} |
| 1344 |
|
| 1345 |
switch (ctx->opcode & 0xf08f) { |
| 1346 |
case 0x408e: /* ldc Rm,Rn_BANK */ |
| 1347 |
CHECK_PRIVILEGED |
| 1348 |
tcg_gen_mov_i32(ALTREG(B6_4), REG(B11_8)); |
| 1349 |
return;
|
| 1350 |
case 0x4087: /* ldc.l @Rm+,Rn_BANK */ |
| 1351 |
CHECK_PRIVILEGED |
| 1352 |
tcg_gen_qemu_ld32s(ALTREG(B6_4), REG(B11_8), ctx->memidx); |
| 1353 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
| 1354 |
return;
|
| 1355 |
case 0x0082: /* stc Rm_BANK,Rn */ |
| 1356 |
CHECK_PRIVILEGED |
| 1357 |
tcg_gen_mov_i32(REG(B11_8), ALTREG(B6_4)); |
| 1358 |
return;
|
| 1359 |
case 0x4083: /* stc.l Rm_BANK,@-Rn */ |
| 1360 |
CHECK_PRIVILEGED |
| 1361 |
{
|
| 1362 |
TCGv addr = tcg_temp_new(); |
| 1363 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
| 1364 |
tcg_gen_qemu_st32(ALTREG(B6_4), addr, ctx->memidx); |
| 1365 |
tcg_gen_mov_i32(REG(B11_8), addr); |
| 1366 |
tcg_temp_free(addr); |
| 1367 |
} |
| 1368 |
return;
|
| 1369 |
} |
| 1370 |
|
| 1371 |
switch (ctx->opcode & 0xf0ff) { |
| 1372 |
case 0x0023: /* braf Rn */ |
| 1373 |
CHECK_NOT_DELAY_SLOT |
| 1374 |
tcg_gen_addi_i32(cpu_delayed_pc, REG(B11_8), ctx->pc + 4);
|
| 1375 |
ctx->flags |= DELAY_SLOT; |
| 1376 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 1377 |
return;
|
| 1378 |
case 0x0003: /* bsrf Rn */ |
| 1379 |
CHECK_NOT_DELAY_SLOT |
| 1380 |
tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
|
| 1381 |
tcg_gen_add_i32(cpu_delayed_pc, REG(B11_8), cpu_pr); |
| 1382 |
ctx->flags |= DELAY_SLOT; |
| 1383 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 1384 |
return;
|
| 1385 |
case 0x4015: /* cmp/pl Rn */ |
| 1386 |
gen_cmp_imm(TCG_COND_GT, REG(B11_8), 0);
|
| 1387 |
return;
|
| 1388 |
case 0x4011: /* cmp/pz Rn */ |
| 1389 |
gen_cmp_imm(TCG_COND_GE, REG(B11_8), 0);
|
| 1390 |
return;
|
| 1391 |
case 0x4010: /* dt Rn */ |
| 1392 |
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 1);
|
| 1393 |
gen_cmp_imm(TCG_COND_EQ, REG(B11_8), 0);
|
| 1394 |
return;
|
| 1395 |
case 0x402b: /* jmp @Rn */ |
| 1396 |
CHECK_NOT_DELAY_SLOT |
| 1397 |
tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8)); |
| 1398 |
ctx->flags |= DELAY_SLOT; |
| 1399 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 1400 |
return;
|
| 1401 |
case 0x400b: /* jsr @Rn */ |
| 1402 |
CHECK_NOT_DELAY_SLOT |
| 1403 |
tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
|
| 1404 |
tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8)); |
| 1405 |
ctx->flags |= DELAY_SLOT; |
| 1406 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 1407 |
return;
|
| 1408 |
case 0x400e: /* ldc Rm,SR */ |
| 1409 |
CHECK_PRIVILEGED |
| 1410 |
tcg_gen_andi_i32(cpu_sr, REG(B11_8), 0x700083f3);
|
| 1411 |
ctx->bstate = BS_STOP; |
| 1412 |
return;
|
| 1413 |
case 0x4007: /* ldc.l @Rm+,SR */ |
| 1414 |
CHECK_PRIVILEGED |
| 1415 |
{
|
| 1416 |
TCGv val = tcg_temp_new(); |
| 1417 |
tcg_gen_qemu_ld32s(val, REG(B11_8), ctx->memidx); |
| 1418 |
tcg_gen_andi_i32(cpu_sr, val, 0x700083f3);
|
| 1419 |
tcg_temp_free(val); |
| 1420 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
| 1421 |
ctx->bstate = BS_STOP; |
| 1422 |
} |
| 1423 |
return;
|
| 1424 |
case 0x0002: /* stc SR,Rn */ |
| 1425 |
CHECK_PRIVILEGED |
| 1426 |
tcg_gen_mov_i32(REG(B11_8), cpu_sr); |
| 1427 |
return;
|
| 1428 |
case 0x4003: /* stc SR,@-Rn */ |
| 1429 |
CHECK_PRIVILEGED |
| 1430 |
{
|
| 1431 |
TCGv addr = tcg_temp_new(); |
| 1432 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
| 1433 |
tcg_gen_qemu_st32(cpu_sr, addr, ctx->memidx); |
| 1434 |
tcg_gen_mov_i32(REG(B11_8), addr); |
| 1435 |
tcg_temp_free(addr); |
| 1436 |
} |
| 1437 |
return;
|
| 1438 |
#define LD(reg,ldnum,ldpnum,prechk) \
|
| 1439 |
case ldnum: \
|
| 1440 |
prechk \ |
| 1441 |
tcg_gen_mov_i32 (cpu_##reg, REG(B11_8)); \ |
| 1442 |
return; \
|
| 1443 |
case ldpnum: \
|
| 1444 |
prechk \ |
| 1445 |
tcg_gen_qemu_ld32s (cpu_##reg, REG(B11_8), ctx->memidx); \ |
| 1446 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4); \
|
| 1447 |
return;
|
| 1448 |
#define ST(reg,stnum,stpnum,prechk) \
|
| 1449 |
case stnum: \
|
| 1450 |
prechk \ |
| 1451 |
tcg_gen_mov_i32 (REG(B11_8), cpu_##reg); \ |
| 1452 |
return; \
|
| 1453 |
case stpnum: \
|
| 1454 |
prechk \ |
| 1455 |
{ \
|
| 1456 |
TCGv addr = tcg_temp_new(); \ |
| 1457 |
tcg_gen_subi_i32(addr, REG(B11_8), 4); \
|
| 1458 |
tcg_gen_qemu_st32 (cpu_##reg, addr, ctx->memidx); \ |
| 1459 |
tcg_gen_mov_i32(REG(B11_8), addr); \ |
| 1460 |
tcg_temp_free(addr); \ |
| 1461 |
} \ |
| 1462 |
return;
|
| 1463 |
#define LDST(reg,ldnum,ldpnum,stnum,stpnum,prechk) \
|
| 1464 |
LD(reg,ldnum,ldpnum,prechk) \ |
| 1465 |
ST(reg,stnum,stpnum,prechk) |
| 1466 |
LDST(gbr, 0x401e, 0x4017, 0x0012, 0x4013, {}) |
| 1467 |
LDST(vbr, 0x402e, 0x4027, 0x0022, 0x4023, CHECK_PRIVILEGED) |
| 1468 |
LDST(ssr, 0x403e, 0x4037, 0x0032, 0x4033, CHECK_PRIVILEGED) |
| 1469 |
LDST(spc, 0x404e, 0x4047, 0x0042, 0x4043, CHECK_PRIVILEGED) |
| 1470 |
ST(sgr, 0x003a, 0x4032, CHECK_PRIVILEGED) |
| 1471 |
LD(sgr, 0x403a, 0x4036, CHECK_PRIVILEGED if (!(ctx->features & SH_FEATURE_SH4A)) break;) |
| 1472 |
LDST(dbr, 0x40fa, 0x40f6, 0x00fa, 0x40f2, CHECK_PRIVILEGED) |
| 1473 |
LDST(mach, 0x400a, 0x4006, 0x000a, 0x4002, {}) |
| 1474 |
LDST(macl, 0x401a, 0x4016, 0x001a, 0x4012, {}) |
| 1475 |
LDST(pr, 0x402a, 0x4026, 0x002a, 0x4022, {}) |
| 1476 |
LDST(fpul, 0x405a, 0x4056, 0x005a, 0x4052, {CHECK_FPU_ENABLED}) |
| 1477 |
case 0x406a: /* lds Rm,FPSCR */ |
| 1478 |
CHECK_FPU_ENABLED |
| 1479 |
gen_helper_ld_fpscr(cpu_env, REG(B11_8)); |
| 1480 |
ctx->bstate = BS_STOP; |
| 1481 |
return;
|
| 1482 |
case 0x4066: /* lds.l @Rm+,FPSCR */ |
| 1483 |
CHECK_FPU_ENABLED |
| 1484 |
{
|
| 1485 |
TCGv addr = tcg_temp_new(); |
| 1486 |
tcg_gen_qemu_ld32s(addr, REG(B11_8), ctx->memidx); |
| 1487 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
| 1488 |
gen_helper_ld_fpscr(cpu_env, addr); |
| 1489 |
tcg_temp_free(addr); |
| 1490 |
ctx->bstate = BS_STOP; |
| 1491 |
} |
| 1492 |
return;
|
| 1493 |
case 0x006a: /* sts FPSCR,Rn */ |
| 1494 |
CHECK_FPU_ENABLED |
| 1495 |
tcg_gen_andi_i32(REG(B11_8), cpu_fpscr, 0x003fffff);
|
| 1496 |
return;
|
| 1497 |
case 0x4062: /* sts FPSCR,@-Rn */ |
| 1498 |
CHECK_FPU_ENABLED |
| 1499 |
{
|
| 1500 |
TCGv addr, val; |
| 1501 |
val = tcg_temp_new(); |
| 1502 |
tcg_gen_andi_i32(val, cpu_fpscr, 0x003fffff);
|
| 1503 |
addr = tcg_temp_new(); |
| 1504 |
tcg_gen_subi_i32(addr, REG(B11_8), 4);
|
| 1505 |
tcg_gen_qemu_st32(val, addr, ctx->memidx); |
| 1506 |
tcg_gen_mov_i32(REG(B11_8), addr); |
| 1507 |
tcg_temp_free(addr); |
| 1508 |
tcg_temp_free(val); |
| 1509 |
} |
| 1510 |
return;
|
| 1511 |
case 0x00c3: /* movca.l R0,@Rm */ |
| 1512 |
{
|
| 1513 |
TCGv val = tcg_temp_new(); |
| 1514 |
tcg_gen_qemu_ld32u(val, REG(B11_8), ctx->memidx); |
| 1515 |
gen_helper_movcal(cpu_env, REG(B11_8), val); |
| 1516 |
tcg_gen_qemu_st32(REG(0), REG(B11_8), ctx->memidx);
|
| 1517 |
} |
| 1518 |
ctx->has_movcal = 1;
|
| 1519 |
return;
|
| 1520 |
case 0x40a9: |
| 1521 |
/* MOVUA.L @Rm,R0 (Rm) -> R0
|
| 1522 |
Load non-boundary-aligned data */
|
| 1523 |
tcg_gen_qemu_ld32u(REG(0), REG(B11_8), ctx->memidx);
|
| 1524 |
return;
|
| 1525 |
case 0x40e9: |
| 1526 |
/* MOVUA.L @Rm+,R0 (Rm) -> R0, Rm + 4 -> Rm
|
| 1527 |
Load non-boundary-aligned data */
|
| 1528 |
tcg_gen_qemu_ld32u(REG(0), REG(B11_8), ctx->memidx);
|
| 1529 |
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
|
| 1530 |
return;
|
| 1531 |
case 0x0029: /* movt Rn */ |
| 1532 |
tcg_gen_andi_i32(REG(B11_8), cpu_sr, SR_T); |
| 1533 |
return;
|
| 1534 |
case 0x0073: |
| 1535 |
/* MOVCO.L
|
| 1536 |
LDST -> T
|
| 1537 |
If (T == 1) R0 -> (Rn)
|
| 1538 |
0 -> LDST
|
| 1539 |
*/
|
| 1540 |
if (ctx->features & SH_FEATURE_SH4A) {
|
| 1541 |
int label = gen_new_label();
|
| 1542 |
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); |
| 1543 |
tcg_gen_or_i32(cpu_sr, cpu_sr, cpu_ldst); |
| 1544 |
tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ldst, 0, label);
|
| 1545 |
tcg_gen_qemu_st32(REG(0), REG(B11_8), ctx->memidx);
|
| 1546 |
gen_set_label(label); |
| 1547 |
tcg_gen_movi_i32(cpu_ldst, 0);
|
| 1548 |
return;
|
| 1549 |
} else
|
| 1550 |
break;
|
| 1551 |
case 0x0063: |
| 1552 |
/* MOVLI.L @Rm,R0
|
| 1553 |
1 -> LDST
|
| 1554 |
(Rm) -> R0
|
| 1555 |
When interrupt/exception
|
| 1556 |
occurred 0 -> LDST
|
| 1557 |
*/
|
| 1558 |
if (ctx->features & SH_FEATURE_SH4A) {
|
| 1559 |
tcg_gen_movi_i32(cpu_ldst, 0);
|
| 1560 |
tcg_gen_qemu_ld32s(REG(0), REG(B11_8), ctx->memidx);
|
| 1561 |
tcg_gen_movi_i32(cpu_ldst, 1);
|
| 1562 |
return;
|
| 1563 |
} else
|
| 1564 |
break;
|
| 1565 |
case 0x0093: /* ocbi @Rn */ |
| 1566 |
{
|
| 1567 |
gen_helper_ocbi(cpu_env, REG(B11_8)); |
| 1568 |
} |
| 1569 |
return;
|
| 1570 |
case 0x00a3: /* ocbp @Rn */ |
| 1571 |
case 0x00b3: /* ocbwb @Rn */ |
| 1572 |
/* These instructions are supposed to do nothing in case of
|
| 1573 |
a cache miss. Given that we only partially emulate caches
|
| 1574 |
it is safe to simply ignore them. */
|
| 1575 |
return;
|
| 1576 |
case 0x0083: /* pref @Rn */ |
| 1577 |
return;
|
| 1578 |
case 0x00d3: /* prefi @Rn */ |
| 1579 |
if (ctx->features & SH_FEATURE_SH4A)
|
| 1580 |
return;
|
| 1581 |
else
|
| 1582 |
break;
|
| 1583 |
case 0x00e3: /* icbi @Rn */ |
| 1584 |
if (ctx->features & SH_FEATURE_SH4A)
|
| 1585 |
return;
|
| 1586 |
else
|
| 1587 |
break;
|
| 1588 |
case 0x00ab: /* synco */ |
| 1589 |
if (ctx->features & SH_FEATURE_SH4A)
|
| 1590 |
return;
|
| 1591 |
else
|
| 1592 |
break;
|
| 1593 |
case 0x4024: /* rotcl Rn */ |
| 1594 |
{
|
| 1595 |
TCGv tmp = tcg_temp_new(); |
| 1596 |
tcg_gen_mov_i32(tmp, cpu_sr); |
| 1597 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 31); |
| 1598 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
|
| 1599 |
gen_copy_bit_i32(REG(B11_8), 0, tmp, 0); |
| 1600 |
tcg_temp_free(tmp); |
| 1601 |
} |
| 1602 |
return;
|
| 1603 |
case 0x4025: /* rotcr Rn */ |
| 1604 |
{
|
| 1605 |
TCGv tmp = tcg_temp_new(); |
| 1606 |
tcg_gen_mov_i32(tmp, cpu_sr); |
| 1607 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0); |
| 1608 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
|
| 1609 |
gen_copy_bit_i32(REG(B11_8), 31, tmp, 0); |
| 1610 |
tcg_temp_free(tmp); |
| 1611 |
} |
| 1612 |
return;
|
| 1613 |
case 0x4004: /* rotl Rn */ |
| 1614 |
tcg_gen_rotli_i32(REG(B11_8), REG(B11_8), 1);
|
| 1615 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0); |
| 1616 |
return;
|
| 1617 |
case 0x4005: /* rotr Rn */ |
| 1618 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0); |
| 1619 |
tcg_gen_rotri_i32(REG(B11_8), REG(B11_8), 1);
|
| 1620 |
return;
|
| 1621 |
case 0x4000: /* shll Rn */ |
| 1622 |
case 0x4020: /* shal Rn */ |
| 1623 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 31); |
| 1624 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
|
| 1625 |
return;
|
| 1626 |
case 0x4021: /* shar Rn */ |
| 1627 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0); |
| 1628 |
tcg_gen_sari_i32(REG(B11_8), REG(B11_8), 1);
|
| 1629 |
return;
|
| 1630 |
case 0x4001: /* shlr Rn */ |
| 1631 |
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0); |
| 1632 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
|
| 1633 |
return;
|
| 1634 |
case 0x4008: /* shll2 Rn */ |
| 1635 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 2);
|
| 1636 |
return;
|
| 1637 |
case 0x4018: /* shll8 Rn */ |
| 1638 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 8);
|
| 1639 |
return;
|
| 1640 |
case 0x4028: /* shll16 Rn */ |
| 1641 |
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 16);
|
| 1642 |
return;
|
| 1643 |
case 0x4009: /* shlr2 Rn */ |
| 1644 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 2);
|
| 1645 |
return;
|
| 1646 |
case 0x4019: /* shlr8 Rn */ |
| 1647 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 8);
|
| 1648 |
return;
|
| 1649 |
case 0x4029: /* shlr16 Rn */ |
| 1650 |
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 16);
|
| 1651 |
return;
|
| 1652 |
case 0x401b: /* tas.b @Rn */ |
| 1653 |
{
|
| 1654 |
TCGv addr, val; |
| 1655 |
addr = tcg_temp_local_new(); |
| 1656 |
tcg_gen_mov_i32(addr, REG(B11_8)); |
| 1657 |
val = tcg_temp_local_new(); |
| 1658 |
tcg_gen_qemu_ld8u(val, addr, ctx->memidx); |
| 1659 |
gen_cmp_imm(TCG_COND_EQ, val, 0);
|
| 1660 |
tcg_gen_ori_i32(val, val, 0x80);
|
| 1661 |
tcg_gen_qemu_st8(val, addr, ctx->memidx); |
| 1662 |
tcg_temp_free(val); |
| 1663 |
tcg_temp_free(addr); |
| 1664 |
} |
| 1665 |
return;
|
| 1666 |
case 0xf00d: /* fsts FPUL,FRn - FPSCR: Nothing */ |
| 1667 |
CHECK_FPU_ENABLED |
| 1668 |
tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fpul); |
| 1669 |
return;
|
| 1670 |
case 0xf01d: /* flds FRm,FPUL - FPSCR: Nothing */ |
| 1671 |
CHECK_FPU_ENABLED |
| 1672 |
tcg_gen_mov_i32(cpu_fpul, cpu_fregs[FREG(B11_8)]); |
| 1673 |
return;
|
| 1674 |
case 0xf02d: /* float FPUL,FRn/DRn - FPSCR: R[PR,Enable.I]/W[Cause,Flag] */ |
| 1675 |
CHECK_FPU_ENABLED |
| 1676 |
if (ctx->flags & FPSCR_PR) {
|
| 1677 |
TCGv_i64 fp; |
| 1678 |
if (ctx->opcode & 0x0100) |
| 1679 |
break; /* illegal instruction */ |
| 1680 |
fp = tcg_temp_new_i64(); |
| 1681 |
gen_helper_float_DT(fp, cpu_env, cpu_fpul); |
| 1682 |
gen_store_fpr64(fp, DREG(B11_8)); |
| 1683 |
tcg_temp_free_i64(fp); |
| 1684 |
} |
| 1685 |
else {
|
| 1686 |
gen_helper_float_FT(cpu_fregs[FREG(B11_8)], cpu_env, cpu_fpul); |
| 1687 |
} |
| 1688 |
return;
|
| 1689 |
case 0xf03d: /* ftrc FRm/DRm,FPUL - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */ |
| 1690 |
CHECK_FPU_ENABLED |
| 1691 |
if (ctx->flags & FPSCR_PR) {
|
| 1692 |
TCGv_i64 fp; |
| 1693 |
if (ctx->opcode & 0x0100) |
| 1694 |
break; /* illegal instruction */ |
| 1695 |
fp = tcg_temp_new_i64(); |
| 1696 |
gen_load_fpr64(fp, DREG(B11_8)); |
| 1697 |
gen_helper_ftrc_DT(cpu_fpul, cpu_env, fp); |
| 1698 |
tcg_temp_free_i64(fp); |
| 1699 |
} |
| 1700 |
else {
|
| 1701 |
gen_helper_ftrc_FT(cpu_fpul, cpu_env, cpu_fregs[FREG(B11_8)]); |
| 1702 |
} |
| 1703 |
return;
|
| 1704 |
case 0xf04d: /* fneg FRn/DRn - FPSCR: Nothing */ |
| 1705 |
CHECK_FPU_ENABLED |
| 1706 |
{
|
| 1707 |
gen_helper_fneg_T(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); |
| 1708 |
} |
| 1709 |
return;
|
| 1710 |
case 0xf05d: /* fabs FRn/DRn */ |
| 1711 |
CHECK_FPU_ENABLED |
| 1712 |
if (ctx->flags & FPSCR_PR) {
|
| 1713 |
if (ctx->opcode & 0x0100) |
| 1714 |
break; /* illegal instruction */ |
| 1715 |
TCGv_i64 fp = tcg_temp_new_i64(); |
| 1716 |
gen_load_fpr64(fp, DREG(B11_8)); |
| 1717 |
gen_helper_fabs_DT(fp, fp); |
| 1718 |
gen_store_fpr64(fp, DREG(B11_8)); |
| 1719 |
tcg_temp_free_i64(fp); |
| 1720 |
} else {
|
| 1721 |
gen_helper_fabs_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); |
| 1722 |
} |
| 1723 |
return;
|
| 1724 |
case 0xf06d: /* fsqrt FRn */ |
| 1725 |
CHECK_FPU_ENABLED |
| 1726 |
if (ctx->flags & FPSCR_PR) {
|
| 1727 |
if (ctx->opcode & 0x0100) |
| 1728 |
break; /* illegal instruction */ |
| 1729 |
TCGv_i64 fp = tcg_temp_new_i64(); |
| 1730 |
gen_load_fpr64(fp, DREG(B11_8)); |
| 1731 |
gen_helper_fsqrt_DT(fp, cpu_env, fp); |
| 1732 |
gen_store_fpr64(fp, DREG(B11_8)); |
| 1733 |
tcg_temp_free_i64(fp); |
| 1734 |
} else {
|
| 1735 |
gen_helper_fsqrt_FT(cpu_fregs[FREG(B11_8)], cpu_env, |
| 1736 |
cpu_fregs[FREG(B11_8)]); |
| 1737 |
} |
| 1738 |
return;
|
| 1739 |
case 0xf07d: /* fsrra FRn */ |
| 1740 |
CHECK_FPU_ENABLED |
| 1741 |
break;
|
| 1742 |
case 0xf08d: /* fldi0 FRn - FPSCR: R[PR] */ |
| 1743 |
CHECK_FPU_ENABLED |
| 1744 |
if (!(ctx->flags & FPSCR_PR)) {
|
| 1745 |
tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0);
|
| 1746 |
} |
| 1747 |
return;
|
| 1748 |
case 0xf09d: /* fldi1 FRn - FPSCR: R[PR] */ |
| 1749 |
CHECK_FPU_ENABLED |
| 1750 |
if (!(ctx->flags & FPSCR_PR)) {
|
| 1751 |
tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0x3f800000);
|
| 1752 |
} |
| 1753 |
return;
|
| 1754 |
case 0xf0ad: /* fcnvsd FPUL,DRn */ |
| 1755 |
CHECK_FPU_ENABLED |
| 1756 |
{
|
| 1757 |
TCGv_i64 fp = tcg_temp_new_i64(); |
| 1758 |
gen_helper_fcnvsd_FT_DT(fp, cpu_env, cpu_fpul); |
| 1759 |
gen_store_fpr64(fp, DREG(B11_8)); |
| 1760 |
tcg_temp_free_i64(fp); |
| 1761 |
} |
| 1762 |
return;
|
| 1763 |
case 0xf0bd: /* fcnvds DRn,FPUL */ |
| 1764 |
CHECK_FPU_ENABLED |
| 1765 |
{
|
| 1766 |
TCGv_i64 fp = tcg_temp_new_i64(); |
| 1767 |
gen_load_fpr64(fp, DREG(B11_8)); |
| 1768 |
gen_helper_fcnvds_DT_FT(cpu_fpul, cpu_env, fp); |
| 1769 |
tcg_temp_free_i64(fp); |
| 1770 |
} |
| 1771 |
return;
|
| 1772 |
case 0xf0ed: /* fipr FVm,FVn */ |
| 1773 |
CHECK_FPU_ENABLED |
| 1774 |
if ((ctx->flags & FPSCR_PR) == 0) { |
| 1775 |
TCGv m, n; |
| 1776 |
m = tcg_const_i32((ctx->opcode >> 8) & 3); |
| 1777 |
n = tcg_const_i32((ctx->opcode >> 10) & 3); |
| 1778 |
gen_helper_fipr(cpu_env, m, n); |
| 1779 |
tcg_temp_free(m); |
| 1780 |
tcg_temp_free(n); |
| 1781 |
return;
|
| 1782 |
} |
| 1783 |
break;
|
| 1784 |
case 0xf0fd: /* ftrv XMTRX,FVn */ |
| 1785 |
CHECK_FPU_ENABLED |
| 1786 |
if ((ctx->opcode & 0x0300) == 0x0100 && |
| 1787 |
(ctx->flags & FPSCR_PR) == 0) {
|
| 1788 |
TCGv n; |
| 1789 |
n = tcg_const_i32((ctx->opcode >> 10) & 3); |
| 1790 |
gen_helper_ftrv(cpu_env, n); |
| 1791 |
tcg_temp_free(n); |
| 1792 |
return;
|
| 1793 |
} |
| 1794 |
break;
|
| 1795 |
} |
| 1796 |
#if 0
|
| 1797 |
fprintf(stderr, "unknown instruction 0x%04x at pc 0x%08x\n",
|
| 1798 |
ctx->opcode, ctx->pc);
|
| 1799 |
fflush(stderr);
|
| 1800 |
#endif
|
| 1801 |
tcg_gen_movi_i32(cpu_pc, ctx->pc); |
| 1802 |
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) {
|
| 1803 |
gen_helper_raise_slot_illegal_instruction(cpu_env); |
| 1804 |
} else {
|
| 1805 |
gen_helper_raise_illegal_instruction(cpu_env); |
| 1806 |
} |
| 1807 |
ctx->bstate = BS_BRANCH; |
| 1808 |
} |
| 1809 |
|
| 1810 |
static void decode_opc(DisasContext * ctx) |
| 1811 |
{
|
| 1812 |
uint32_t old_flags = ctx->flags; |
| 1813 |
|
| 1814 |
if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
|
| 1815 |
tcg_gen_debug_insn_start(ctx->pc); |
| 1816 |
} |
| 1817 |
|
| 1818 |
_decode_opc(ctx); |
| 1819 |
|
| 1820 |
if (old_flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) {
|
| 1821 |
if (ctx->flags & DELAY_SLOT_CLEARME) {
|
| 1822 |
gen_store_flags(0);
|
| 1823 |
} else {
|
| 1824 |
/* go out of the delay slot */
|
| 1825 |
uint32_t new_flags = ctx->flags; |
| 1826 |
new_flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); |
| 1827 |
gen_store_flags(new_flags); |
| 1828 |
} |
| 1829 |
ctx->flags = 0;
|
| 1830 |
ctx->bstate = BS_BRANCH; |
| 1831 |
if (old_flags & DELAY_SLOT_CONDITIONAL) {
|
| 1832 |
gen_delayed_conditional_jump(ctx); |
| 1833 |
} else if (old_flags & DELAY_SLOT) { |
| 1834 |
gen_jump(ctx); |
| 1835 |
} |
| 1836 |
|
| 1837 |
} |
| 1838 |
|
| 1839 |
/* go into a delay slot */
|
| 1840 |
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL))
|
| 1841 |
gen_store_flags(ctx->flags); |
| 1842 |
} |
| 1843 |
|
| 1844 |
static inline void |
| 1845 |
gen_intermediate_code_internal(SuperHCPU *cpu, TranslationBlock *tb, |
| 1846 |
bool search_pc)
|
| 1847 |
{
|
| 1848 |
CPUState *cs = CPU(cpu); |
| 1849 |
CPUSH4State *env = &cpu->env; |
| 1850 |
DisasContext ctx; |
| 1851 |
target_ulong pc_start; |
| 1852 |
static uint16_t *gen_opc_end;
|
| 1853 |
CPUBreakpoint *bp; |
| 1854 |
int i, ii;
|
| 1855 |
int num_insns;
|
| 1856 |
int max_insns;
|
| 1857 |
|
| 1858 |
pc_start = tb->pc; |
| 1859 |
gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE; |
| 1860 |
ctx.pc = pc_start; |
| 1861 |
ctx.flags = (uint32_t)tb->flags; |
| 1862 |
ctx.bstate = BS_NONE; |
| 1863 |
ctx.memidx = (ctx.flags & SR_MD) == 0 ? 1 : 0; |
| 1864 |
/* We don't know if the delayed pc came from a dynamic or static branch,
|
| 1865 |
so assume it is a dynamic branch. */
|
| 1866 |
ctx.delayed_pc = -1; /* use delayed pc from env pointer */ |
| 1867 |
ctx.tb = tb; |
| 1868 |
ctx.singlestep_enabled = cs->singlestep_enabled; |
| 1869 |
ctx.features = env->features; |
| 1870 |
ctx.has_movcal = (ctx.flags & TB_FLAG_PENDING_MOVCA); |
| 1871 |
|
| 1872 |
ii = -1;
|
| 1873 |
num_insns = 0;
|
| 1874 |
max_insns = tb->cflags & CF_COUNT_MASK; |
| 1875 |
if (max_insns == 0) |
| 1876 |
max_insns = CF_COUNT_MASK; |
| 1877 |
gen_tb_start(); |
| 1878 |
while (ctx.bstate == BS_NONE && tcg_ctx.gen_opc_ptr < gen_opc_end) {
|
| 1879 |
if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
|
| 1880 |
QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
|
| 1881 |
if (ctx.pc == bp->pc) {
|
| 1882 |
/* We have hit a breakpoint - make sure PC is up-to-date */
|
| 1883 |
tcg_gen_movi_i32(cpu_pc, ctx.pc); |
| 1884 |
gen_helper_debug(cpu_env); |
| 1885 |
ctx.bstate = BS_BRANCH; |
| 1886 |
break;
|
| 1887 |
} |
| 1888 |
} |
| 1889 |
} |
| 1890 |
if (search_pc) {
|
| 1891 |
i = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf; |
| 1892 |
if (ii < i) {
|
| 1893 |
ii++; |
| 1894 |
while (ii < i)
|
| 1895 |
tcg_ctx.gen_opc_instr_start[ii++] = 0;
|
| 1896 |
} |
| 1897 |
tcg_ctx.gen_opc_pc[ii] = ctx.pc; |
| 1898 |
gen_opc_hflags[ii] = ctx.flags; |
| 1899 |
tcg_ctx.gen_opc_instr_start[ii] = 1;
|
| 1900 |
tcg_ctx.gen_opc_icount[ii] = num_insns; |
| 1901 |
} |
| 1902 |
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) |
| 1903 |
gen_io_start(); |
| 1904 |
#if 0
|
| 1905 |
fprintf(stderr, "Loading opcode at address 0x%08x\n", ctx.pc);
|
| 1906 |
fflush(stderr);
|
| 1907 |
#endif
|
| 1908 |
ctx.opcode = cpu_lduw_code(env, ctx.pc); |
| 1909 |
decode_opc(&ctx); |
| 1910 |
num_insns++; |
| 1911 |
ctx.pc += 2;
|
| 1912 |
if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) |
| 1913 |
break;
|
| 1914 |
if (cs->singlestep_enabled) {
|
| 1915 |
break;
|
| 1916 |
} |
| 1917 |
if (num_insns >= max_insns)
|
| 1918 |
break;
|
| 1919 |
if (singlestep)
|
| 1920 |
break;
|
| 1921 |
} |
| 1922 |
if (tb->cflags & CF_LAST_IO)
|
| 1923 |
gen_io_end(); |
| 1924 |
if (cs->singlestep_enabled) {
|
| 1925 |
tcg_gen_movi_i32(cpu_pc, ctx.pc); |
| 1926 |
gen_helper_debug(cpu_env); |
| 1927 |
} else {
|
| 1928 |
switch (ctx.bstate) {
|
| 1929 |
case BS_STOP:
|
| 1930 |
/* gen_op_interrupt_restart(); */
|
| 1931 |
/* fall through */
|
| 1932 |
case BS_NONE:
|
| 1933 |
if (ctx.flags) {
|
| 1934 |
gen_store_flags(ctx.flags | DELAY_SLOT_CLEARME); |
| 1935 |
} |
| 1936 |
gen_goto_tb(&ctx, 0, ctx.pc);
|
| 1937 |
break;
|
| 1938 |
case BS_EXCP:
|
| 1939 |
/* gen_op_interrupt_restart(); */
|
| 1940 |
tcg_gen_exit_tb(0);
|
| 1941 |
break;
|
| 1942 |
case BS_BRANCH:
|
| 1943 |
default:
|
| 1944 |
break;
|
| 1945 |
} |
| 1946 |
} |
| 1947 |
|
| 1948 |
gen_tb_end(tb, num_insns); |
| 1949 |
*tcg_ctx.gen_opc_ptr = INDEX_op_end; |
| 1950 |
if (search_pc) {
|
| 1951 |
i = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf; |
| 1952 |
ii++; |
| 1953 |
while (ii <= i)
|
| 1954 |
tcg_ctx.gen_opc_instr_start[ii++] = 0;
|
| 1955 |
} else {
|
| 1956 |
tb->size = ctx.pc - pc_start; |
| 1957 |
tb->icount = num_insns; |
| 1958 |
} |
| 1959 |
|
| 1960 |
#ifdef DEBUG_DISAS
|
| 1961 |
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
|
| 1962 |
qemu_log("IN:\n"); /* , lookup_symbol(pc_start)); */ |
| 1963 |
log_target_disas(env, pc_start, ctx.pc - pc_start, 0);
|
| 1964 |
qemu_log("\n");
|
| 1965 |
} |
| 1966 |
#endif
|
| 1967 |
} |
| 1968 |
|
| 1969 |
void gen_intermediate_code(CPUSH4State * env, struct TranslationBlock *tb) |
| 1970 |
{
|
| 1971 |
gen_intermediate_code_internal(sh_env_get_cpu(env), tb, false);
|
| 1972 |
} |
| 1973 |
|
| 1974 |
void gen_intermediate_code_pc(CPUSH4State * env, struct TranslationBlock *tb) |
| 1975 |
{
|
| 1976 |
gen_intermediate_code_internal(sh_env_get_cpu(env), tb, true);
|
| 1977 |
} |
| 1978 |
|
| 1979 |
void restore_state_to_opc(CPUSH4State *env, TranslationBlock *tb, int pc_pos) |
| 1980 |
{
|
| 1981 |
env->pc = tcg_ctx.gen_opc_pc[pc_pos]; |
| 1982 |
env->flags = gen_opc_hflags[pc_pos]; |
| 1983 |
} |