79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/*
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* i386 TCG cpu class initialization
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*
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* Copyright (c) 2003 Fabrice Bellard
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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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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "tcg-cpu.h"
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#include "exec/exec-all.h"
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#include "sysemu/runstate.h"
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#include "helper-tcg.h"
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#if !defined(CONFIG_USER_ONLY)
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#include "hw/i386/apic.h"
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#endif
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/* Frob eflags into and out of the CPU temporary format. */
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static void x86_cpu_exec_enter(CPUState *cs)
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{
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X86CPU *cpu = X86_CPU(cs);
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CPUX86State *env = &cpu->env;
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CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
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env->df = 1 - (2 * ((env->eflags >> 10) & 1));
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CC_OP = CC_OP_EFLAGS;
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env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
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}
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static void x86_cpu_exec_exit(CPUState *cs)
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{
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X86CPU *cpu = X86_CPU(cs);
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CPUX86State *env = &cpu->env;
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env->eflags = cpu_compute_eflags(env);
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}
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static void x86_cpu_synchronize_from_tb(CPUState *cs,
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const TranslationBlock *tb)
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{
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X86CPU *cpu = X86_CPU(cs);
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cpu->env.eip = tb->pc - tb->cs_base;
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}
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#include "hw/core/tcg-cpu-ops.h"
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static struct TCGCPUOps x86_tcg_ops = {
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.initialize = tcg_x86_init,
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.synchronize_from_tb = x86_cpu_synchronize_from_tb,
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.cpu_exec_enter = x86_cpu_exec_enter,
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.cpu_exec_exit = x86_cpu_exec_exit,
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.cpu_exec_interrupt = x86_cpu_exec_interrupt,
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.do_interrupt = x86_cpu_do_interrupt,
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.tlb_fill = x86_cpu_tlb_fill,
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#ifndef CONFIG_USER_ONLY
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.debug_excp_handler = breakpoint_handler,
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#endif /* !CONFIG_USER_ONLY */
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};
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void tcg_cpu_common_class_init(CPUClass *cc)
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{
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cc->tcg_ops = &x86_tcg_ops;
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}
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