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/*
armmmu.c - Memory Management Unit emulation.
ARMulator extensions for the ARM7100 family.
Copyright (C) 1999 Ben Williamson
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include "core/mem_map.h"
#include "core/arm/skyeye_common/armdefs.h"
// Register numbers in the MMU
enum
{
MMU_ID = 0,
MMU_CONTROL = 1,
MMU_TRANSLATION_TABLE_BASE = 2,
MMU_DOMAIN_ACCESS_CONTROL = 3,
MMU_FAULT_STATUS = 5,
MMU_FAULT_ADDRESS = 6,
MMU_CACHE_OPS = 7,
MMU_TLB_OPS = 8,
MMU_CACHE_LOCKDOWN = 9,
MMU_TLB_LOCKDOWN = 10,
MMU_PID = 13,
// MMU_V4
MMU_V4_CACHE_OPS = 7,
MMU_V4_TLB_OPS = 8,
// MMU_V3
MMU_V3_FLUSH_TLB = 5,
MMU_V3_FLUSH_TLB_ENTRY = 6,
MMU_V3_FLUSH_CACHE = 7,
// MMU Intel SA-1100
MMU_SA_RB_OPS = 9,
MMU_SA_DEBUG = 14,
MMU_SA_CP15_R15 = 15,
// Intel xscale CP15
XSCALE_CP15_CACHE_TYPE = 0,
XSCALE_CP15_AUX_CONTROL = 1,
XSCALE_CP15_COPRO_ACCESS = 15,
};
// Reads data in big/little endian format based on the
// state of the E (endian) bit in the emulated CPU's APSR.
inline u16 ReadMemory16(ARMul_State* cpu, u32 address) {
u16 data = Memory::Read16(address);
if (InBigEndianMode(cpu))
data = Common::swap16(data);
return data;
}
inline u32 ReadMemory32(ARMul_State* cpu, u32 address) {
u32 data = Memory::Read32(address);
if (InBigEndianMode(cpu))
data = Common::swap32(data);
return data;
}
inline u64 ReadMemory64(ARMul_State* cpu, u32 address) {
u64 data = Memory::Read64(address);
if (InBigEndianMode(cpu))
data = Common::swap64(data);
return data;
}
// Writes data in big/little endian format based on the
// state of the E (endian) bit in the emulated CPU's APSR.
inline void WriteMemory16(ARMul_State* cpu, u32 address, u16 data) {
if (InBigEndianMode(cpu))
data = Common::swap16(data);
Memory::Write16(address, data);
}
inline void WriteMemory32(ARMul_State* cpu, u32 address, u32 data) {
if (InBigEndianMode(cpu))
data = Common::swap32(data);
Memory::Write32(address, data);
}
inline void WriteMemory64(ARMul_State* cpu, u32 address, u64 data) {
if (InBigEndianMode(cpu))
data = Common::swap64(data);
Memory::Write64(address, data);
}
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