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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Mupen64plus - dbg_memory.c *
* Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ *
* Copyright (C) 2008 DarkJeztr *
* Copyright (C) 2002 Blight *
* *
* 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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <string.h>
#include "ai/ai_controller.h"
#include "api/callbacks.h"
#include "api/m64p_types.h"
#include "dbg_breakpoints.h"
#include "dbg_memory.h"
#include "dbg_types.h"
#include "main/main.h"
#include "main/rom.h"
#include "memory/memory.h"
#include "pi/pi_controller.h"
#include "r4300/cached_interp.h"
#include "r4300/ops.h"
#include "r4300/r4300.h"
#include "r4300/r4300_core.h"
#include "rdp/rdp_core.h"
#include "ri/ri_controller.h"
#include "rsp/rsp_core.h"
#include "si/si_controller.h"
#include "vi/vi_controller.h"
#if !defined(NO_ASM) && (defined(__i386__) || defined(__x86_64__)) && 0
/* we must define PACKAGE so that bfd.h (which is included from dis-asm.h) doesn't throw an error */
#define PACKAGE "mupen64plus-core"
#include <dis-asm.h>
#include <stdarg.h>
static int lines_recompiled;
static uint32 addr_recompiled;
static int num_decoded;
static char opcode_recompiled[564][MAX_DISASSEMBLY];
static char args_recompiled[564][MAX_DISASSEMBLY*4];
static void *opaddr_recompiled[564];
static disassemble_info dis_info;
#define CHECK_MEM(address) \
invalidate_r4300_cached_code(address, 4);
static void process_opcode_out(void *strm, const char *fmt, ...){
va_list ap;
va_start(ap, fmt);
char *arg;
char buff[256];
if(num_decoded==0)
{
if(strcmp(fmt,"%s")==0)
{
arg = va_arg(ap, char*);
strcpy(opcode_recompiled[lines_recompiled],arg);
}
else
strcpy(opcode_recompiled[lines_recompiled],"OPCODE-X");
num_decoded++;
*(args_recompiled[lines_recompiled])=0;
}
else
{
vsprintf(buff, fmt, ap);
sprintf(args_recompiled[lines_recompiled],"%s%s",
args_recompiled[lines_recompiled],buff);
}
va_end(ap);
}
// Callback function that will be called by libopcodes to read the
// bytes to disassemble ('read_memory_func' member of 'disassemble_info').
static int read_memory_func(bfd_vma memaddr, bfd_byte *myaddr,
unsigned int length, disassemble_info *info) {
char* from = (char*)(long)(memaddr);
char* to = (char*)myaddr;
while (length-- != 0) {
*to++ = *from++;
}
return (0);
}
void init_host_disassembler(void){
INIT_DISASSEMBLE_INFO(dis_info, stderr, process_opcode_out);
dis_info.fprintf_func = (fprintf_ftype) process_opcode_out;
dis_info.stream = stderr;
dis_info.bytes_per_line=1;
dis_info.endian = 1;
dis_info.mach = bfd_mach_i386_i8086;
dis_info.disassembler_options = (char*) "i386,suffix";
dis_info.read_memory_func = read_memory_func;
}
static void decode_recompiled(uint32 addr)
{
unsigned char *assemb, *end_addr;
lines_recompiled=0;
if(blocks[addr>>12] == NULL)
return;
if(blocks[addr>>12]->block[(addr&0xFFF)/4].ops == current_instruction_table.NOTCOMPILED)
// recompile_block((int *) g_sp_mem, blocks[addr>>12], addr);
{
strcpy(opcode_recompiled[0],"INVLD");
strcpy(args_recompiled[0],"NOTCOMPILED");
opaddr_recompiled[0] = (void *) 0;
addr_recompiled=0;
lines_recompiled++;
return;
}
assemb = (blocks[addr>>12]->code) +
(blocks[addr>>12]->block[(addr&0xFFF)/4].local_addr);
end_addr = blocks[addr>>12]->code;
if( (addr & 0xFFF) >= 0xFFC)
end_addr += blocks[addr>>12]->code_length;
else
end_addr += blocks[addr>>12]->block[(addr&0xFFF)/4+1].local_addr;
while(assemb < end_addr)
{
opaddr_recompiled[lines_recompiled] = assemb;
num_decoded=0;
assemb += print_insn_i386((bfd_vma)(long) assemb, &dis_info);
lines_recompiled++;
}
addr_recompiled = addr;
}
char* get_recompiled_opcode(uint32 addr, int index)
{
if(addr != addr_recompiled)
decode_recompiled(addr);
if(index < lines_recompiled)
return opcode_recompiled[index];
else
return NULL;
}
char* get_recompiled_args(uint32 addr, int index)
{
if(addr != addr_recompiled)
decode_recompiled(addr);
if(index < lines_recompiled)
return args_recompiled[index];
else
return NULL;
}
void * get_recompiled_addr(uint32 addr, int index)
{
if(addr != addr_recompiled)
decode_recompiled(addr);
if(index < lines_recompiled)
return opaddr_recompiled[index];
else
return 0;
}
int get_num_recompiled(uint32 addr)
{
if(addr != addr_recompiled)
decode_recompiled(addr);
return lines_recompiled;
}
int get_has_recompiled(uint32 addr)
{
unsigned char *assemb, *end_addr;
if(r4300emu != CORE_DYNAREC || blocks[addr>>12] == NULL)
return FALSE;
assemb = (blocks[addr>>12]->code) +
(blocks[addr>>12]->block[(addr&0xFFF)/4].local_addr);
end_addr = blocks[addr>>12]->code;
if( (addr & 0xFFF) >= 0xFFC)
end_addr += blocks[addr>>12]->code_length;
else
end_addr += blocks[addr>>12]->block[(addr&0xFFF)/4+1].local_addr;
if(assemb==end_addr)
return FALSE;
return TRUE;
}
#else
#define CHECK_MEM(address)
int get_num_recompiled(uint32 addr)
{
return 0;
}
char* get_recompiled_opcode(uint32 addr, int index)
{
return NULL;
}
char* get_recompiled_args(uint32 addr, int index)
{
return NULL;
}
void * get_recompiled_addr(uint32 addr, int index)
{
return 0;
}
int get_has_recompiled(uint32 addr)
{
return 0;
}
void init_host_disassembler(void)
{
}
#endif
#ifdef DBG
uint64 read_memory_64(uint32 addr)
{
return ((uint64)read_memory_32(addr) << 32) | (uint64)read_memory_32(addr + 4);
}
uint64 read_memory_64_unaligned(uint32 addr)
{
uint64 w[2];
w[0] = read_memory_32_unaligned(addr);
w[1] = read_memory_32_unaligned(addr + 4);
return (w[0] << 32) | w[1];
}
void write_memory_64(uint32 addr, uint64 value)
{
write_memory_32(addr, (uint32) (value >> 32));
write_memory_32(addr + 4, (uint32) (value & 0xFFFFFFFF));
}
void write_memory_64_unaligned(uint32 addr, uint64 value)
{
write_memory_32_unaligned(addr, (uint32) (value >> 32));
write_memory_32_unaligned(addr + 4, (uint32) (value & 0xFFFFFFFF));
}
uint32 read_memory_32(uint32 addr){
uint32_t offset;
switch(get_memory_type(addr))
{
case M64P_MEM_NOMEM:
if(tlb_LUT_r[addr>>12])
return read_memory_32((tlb_LUT_r[addr>>12]&0xFFFFF000)|(addr&0xFFF));
return M64P_MEM_INVALID;
case M64P_MEM_RDRAM:
return g_rdram[rdram_dram_address(addr)];
case M64P_MEM_RSPMEM:
return g_sp.mem[rsp_mem_address(addr)];
case M64P_MEM_ROM:
return *((uint32 *)(g_rom + rom_address(addr)));
case M64P_MEM_RDRAMREG:
offset = rdram_reg(addr);
if (offset < RDRAM_REGS_COUNT)
return g_ri.rdram.regs[offset];
break;
case M64P_MEM_RSPREG:
offset = rsp_reg(addr);
if (offset < SP_REGS_COUNT)
return g_sp.regs[offset];
break;
case M64P_MEM_RSP:
offset = rsp_reg2(addr);
if (offset < SP_REGS2_COUNT)
return g_sp.regs2[offset];
break;
case M64P_MEM_DP:
offset = dpc_reg(addr);
if (offset < DPC_REGS_COUNT)
return g_dp.dpc_regs[offset];
break;
case M64P_MEM_DPS:
offset = dps_reg(addr);
if (offset < DPS_REGS_COUNT)
return g_dp.dps_regs[offset];
break;
case M64P_MEM_VI:
offset = vi_reg(addr);
if (offset < VI_REGS_COUNT)
return g_vi.regs[offset];
break;
case M64P_MEM_AI:
offset = ai_reg(addr);
if (offset < AI_REGS_COUNT)
return g_ai.regs[offset];
break;
case M64P_MEM_PI:
offset = pi_reg(addr);
if (offset < PI_REGS_COUNT)
return g_pi.regs[offset];
break;
case M64P_MEM_RI:
offset = ri_reg(addr);
if (offset < RI_REGS_COUNT)
return g_ri.regs[offset];
break;
case M64P_MEM_SI:
offset = si_reg(addr);
if (offset < SI_REGS_COUNT)
return g_si.regs[offset];
break;
case M64P_MEM_PIF:
offset = pif_ram_address(addr);
if (offset < PIF_RAM_SIZE)
return sl((*((uint32_t*)&g_si.pif.ram[offset])));
break;
case M64P_MEM_MI:
offset = mi_reg(addr);
if (offset < MI_REGS_COUNT)
return g_r4300.mi.regs[offset];
break;
default:
break;
}
return M64P_MEM_INVALID;
}
uint32 read_memory_32_unaligned(uint32 addr)
{
uint8 i, b[4];
for(i=0; i<4; i++) b[i] = read_memory_8(addr + i);
return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];
}
void write_memory_32(uint32 addr, uint32 value){
switch(get_memory_type(addr))
{
case M64P_MEM_RDRAM:
g_rdram[(addr & 0xffffff) >> 2] = value;
CHECK_MEM(addr)
break;
}
}
void write_memory_32_unaligned(uint32 addr, uint32 value)
{
write_memory_8(addr + 0, value >> 24);
write_memory_8(addr + 1, (value >> 16) & 0xFF);
write_memory_8(addr + 2, (value >> 8) & 0xFF);
write_memory_8(addr + 3, value & 0xFF);
}
//read_memory_16_unaligned and write_memory_16_unaligned don't exist because
//read_memory_16 and write_memory_16 work unaligned already.
uint16 read_memory_16(uint32 addr)
{
return ((uint16)read_memory_8(addr) << 8) | (uint16)read_memory_8(addr+1); //cough cough hack hack
}
void write_memory_16(uint32 addr, uint16 value)
{
write_memory_8(addr, value >> 8); //this isn't much better
write_memory_8(addr + 1, value & 0xFF); //then again, it works unaligned
}
uint8 read_memory_8(uint32 addr)
{
uint32 word;
word = read_memory_32(addr & ~3);
return (word >> ((3 - (addr & 3)) * 8)) & 0xFF;
}
void write_memory_8(uint32 addr, uint8 value)
{
uint32 word, mask;
word = read_memory_32(addr & ~3);
mask = 0xFF << ((3 - (addr & 3)) * 8);
word = (word & ~mask) | (value << ((3 - (addr & 3)) * 8));
write_memory_32(addr & ~3, word);
}
uint32 get_memory_flags(uint32 addr)
{
int type=get_memory_type(addr);
const uint32 addrlow = (addr & 0xFFFF);
uint32 flags = 0;
switch(type)
{
case M64P_MEM_NOMEM:
if(tlb_LUT_r[addr>>12])
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_NOTHING:
if (((addr >> 16) == 0x8801 || (addr >> 16 == 0xA801)) && addrlow == 0)
flags = M64P_MEM_FLAG_WRITABLE_EMUONLY; // for flashram command
break;
case M64P_MEM_RDRAM:
flags = M64P_MEM_FLAG_WRITABLE;
case M64P_MEM_ROM:
flags |= M64P_MEM_FLAG_READABLE;
break;
case M64P_MEM_RDRAMREG:
if (addrlow < 0x28)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_RSPMEM:
if (addrlow < 0x2000)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_RSPREG:
if (addrlow < 0x20)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_RSP:
if (addrlow < 0x8)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_DP:
if (addrlow < 0x20)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_DPS:
if (addrlow < 0x10)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_VI:
if (addrlow < 0x38)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_AI:
if (addrlow < 0x18)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_PI:
if (addrlow < 0x34)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_RI:
if (addrlow < 0x20)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_SI:
if (addrlow < 0x1c)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_FLASHRAMSTAT:
if (addrlow == 0)
flags = M64P_MEM_FLAG_READABLE_EMUONLY;
break;
case M64P_MEM_PIF:
if (addrlow >= 0x7C0 && addrlow <= 0x7FF)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
case M64P_MEM_MI:
if (addrlow < 0x10)
flags = M64P_MEM_FLAG_READABLE | M64P_MEM_FLAG_WRITABLE_EMUONLY;
break;
default:
break;
}
return flags;
}
#endif
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