119 lines
4.3 KiB
C++
119 lines
4.3 KiB
C++
/////////////////////////////////////////////////////////////////////////
|
|
// $Id: memory.h,v 1.31 2006-02-27 19:04:01 sshwarts Exp $
|
|
/////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Copyright (C) 2001 MandrakeSoft S.A.
|
|
//
|
|
// MandrakeSoft S.A.
|
|
// 43, rue d'Aboukir
|
|
// 75002 Paris - France
|
|
// http://www.linux-mandrake.com/
|
|
// http://www.mandrakesoft.com/
|
|
//
|
|
// I/O memory handlers API Copyright (C) 2003 by Frank Cornelis
|
|
//
|
|
// 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 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, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
#ifndef BX_MEM_H
|
|
# define BX_MEM_H 1
|
|
|
|
#define BX_USE_MEM_SMF 0
|
|
|
|
#if BX_USE_MEM_SMF
|
|
// if static member functions on, then there is only one memory
|
|
# define BX_MEM_SMF static
|
|
# define BX_MEM_THIS BX_MEM(0)->
|
|
#else
|
|
# define BX_MEM_SMF
|
|
# define BX_MEM_THIS this->
|
|
#endif
|
|
|
|
// alignment of memory vector, must be a power of 2
|
|
#define BX_MEM_VECTOR_ALIGN 4096
|
|
#define BIOSROMSZ (1 << 19) // 512KB BIOS ROM @0xfff80000, must be a power of 2
|
|
#define EXROMSIZE 0x20000 // ROMs 0xc0000-0xdffff (area 0xe0000-0xfffff=bios mapped)
|
|
#define BIOS_MASK (BIOSROMSZ-1)
|
|
#define EXROM_MASK (EXROMSIZE-1)
|
|
|
|
typedef bx_bool (*memory_handler_t)(unsigned long addr, unsigned long len, void *data, void *param);
|
|
|
|
struct memory_handler_struct {
|
|
struct memory_handler_struct *next;
|
|
void *param;
|
|
unsigned long begin;
|
|
unsigned long end;
|
|
memory_handler_t read_handler;
|
|
memory_handler_t write_handler;
|
|
};
|
|
|
|
class BOCHSAPI BX_MEM_C : public logfunctions {
|
|
private:
|
|
struct memory_handler_struct **memory_handlers;
|
|
bx_bool rom_present[65];
|
|
bx_bool pci_enabled;
|
|
|
|
public:
|
|
Bit8u *actual_vector;
|
|
Bit8u *vector; // aligned correctly
|
|
size_t len;
|
|
size_t megabytes; // (len in Megabytes)
|
|
Bit8u *rom; // 512k BIOS rom space + 128k expansion rom space
|
|
Bit8u *bogus; // 4k for unexisting memory
|
|
#if BX_DEBUGGER
|
|
unsigned char dbg_dirty_pages[(BX_MAX_DIRTY_PAGE_TABLE_MEGS * 1024 * 1024) / 4096];
|
|
Bit32u dbg_count_dirty_pages () {
|
|
return (BX_MAX_DIRTY_PAGE_TABLE_MEGS * 1024 * 1024) / 4096;
|
|
}
|
|
#endif
|
|
|
|
BX_MEM_C(void);
|
|
~BX_MEM_C(void);
|
|
BX_MEM_SMF void alloc_vector_aligned (size_t bytes, size_t alignment) BX_CPP_AttrRegparmN(2);
|
|
BX_MEM_SMF void init_memory(int memsize);
|
|
BX_MEM_SMF void readPhysicalPage(BX_CPU_C *cpu, Bit32u addr,
|
|
unsigned len, void *data) BX_CPP_AttrRegparmN(3);
|
|
BX_MEM_SMF void writePhysicalPage(BX_CPU_C *cpu, Bit32u addr,
|
|
unsigned len, void *data) BX_CPP_AttrRegparmN(3);
|
|
BX_MEM_SMF void load_ROM(const char *path, Bit32u romaddress, Bit8u type);
|
|
BX_MEM_SMF void load_RAM(const char *path, Bit32u romaddress, Bit8u type);
|
|
BX_MEM_SMF Bit32u get_memory_in_k(void);
|
|
BX_MEM_SMF bx_bool dbg_fetch_mem(Bit32u addr, unsigned len, Bit8u *buf);
|
|
BX_MEM_SMF bx_bool dbg_set_mem(Bit32u addr, unsigned len, Bit8u *buf);
|
|
BX_MEM_SMF bx_bool dbg_crc32(Bit32u addr1, Bit32u addr2, Bit32u *crc);
|
|
BX_MEM_SMF Bit8u* getHostMemAddr(BX_CPU_C *cpu, Bit32u a20Addr, unsigned op) BX_CPP_AttrRegparmN(3);
|
|
BX_MEM_SMF bx_bool registerMemoryHandlers(void *param, memory_handler_t read_handler,
|
|
memory_handler_t write_handler, Bit32u begin_addr, Bit32u end_addr);
|
|
BX_MEM_SMF bx_bool unregisterMemoryHandlers(memory_handler_t read_handler, memory_handler_t write_handler,
|
|
Bit32u begin_addr, Bit32u end_addr);
|
|
};
|
|
|
|
#if BX_PROVIDE_CPU_MEMORY==1
|
|
|
|
#if BX_ADDRESS_SPACES==1
|
|
BOCHSAPI extern BX_MEM_C bx_mem;
|
|
#else
|
|
BOCHSAPI extern BX_MEM_C bx_mem_array[BX_ADDRESS_SPACES];
|
|
#endif /* BX_ADDRESS_SPACES */
|
|
|
|
#endif /* BX_PROVIDE_CPU_MEMORY==1 */
|
|
|
|
#if BX_DEBUGGER
|
|
# define BX_DBG_DIRTY_PAGE(page) BX_MEM(0)->dbg_dirty_pages[page] = 1;
|
|
#else
|
|
# define BX_DBG_DIRTY_PAGE(page)
|
|
#endif
|
|
|
|
#endif
|