path: root/target/avr/cpu-param.h

/*
 * QEMU AVR CPU
 *
 * Copyright (c) 2016-2020 Michael Rolnik
 *
 * 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/lgpl-2.1.html>
 */

#ifndef AVR_CPU_PARAM_H
#define AVR_CPU_PARAM_H

#define TARGET_LONG_BITS 32
/*
 * TARGET_PAGE_BITS cannot be more than 8 bits because
 * 1.  all IO registers occupy [0x0000 .. 0x00ff] address range, and they
 *     should be implemented as a device and not memory
 * 2.  SRAM starts at the address 0x0100
 */
#define TARGET_PAGE_BITS 8
#define TARGET_PHYS_ADDR_SPACE_BITS 24
#define TARGET_VIRT_ADDR_SPACE_BITS 24
#define NB_MMU_MODES 2

#endif