59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/*
|
|
* emulator main execution loop
|
|
*
|
|
* Copyright (c) 2003-2005 Fabrice Bellard
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "cpu.h"
|
|
#include "sysemu/cpus.h"
|
|
#include "sysemu/tcg.h"
|
|
#include "exec/exec-all.h"
|
|
|
|
/* exit the current TB, but without causing any exception to be raised */
|
|
void cpu_loop_exit_noexc(CPUState *cpu)
|
|
{
|
|
cpu->exception_index = -1;
|
|
cpu_loop_exit(cpu);
|
|
}
|
|
|
|
void cpu_reloading_memory_map(void)
|
|
{
|
|
}
|
|
|
|
void cpu_loop_exit(CPUState *cpu)
|
|
{
|
|
/* Unlock JIT write protect if applicable. */
|
|
tb_exec_unlock(cpu->uc->tcg_ctx);
|
|
/* Undo the setting in cpu_tb_exec. */
|
|
cpu->can_do_io = 1;
|
|
siglongjmp(cpu->uc->jmp_bufs[cpu->uc->nested_level - 1], 1);
|
|
}
|
|
|
|
void cpu_loop_exit_restore(CPUState *cpu, uintptr_t pc)
|
|
{
|
|
if (pc) {
|
|
cpu_restore_state(cpu, pc, true);
|
|
}
|
|
cpu_loop_exit(cpu);
|
|
}
|
|
|
|
void cpu_loop_exit_atomic(CPUState *cpu, uintptr_t pc)
|
|
{
|
|
cpu->exception_index = EXCP_ATOMIC;
|
|
cpu_loop_exit_restore(cpu, pc);
|
|
}
|