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Merge pull request #550 from rzumer/slot2 

Support GBA game cartridges for DS connectivity
This commit is contained in:
Arisotura 2020-01-28 21:32:29 +01:00 committed by GitHub
parent 3984491cce 22d11209b0
commit 12732aa51b
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GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 1256 additions and 116 deletions
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1
src/CMakeLists.txt
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@ -10,6 +10,7 @@ add_library(core STATIC
CP15.cpp
CRC32.cpp
DMA.cpp
GBACart.cpp
GPU.cpp
GPU2D.cpp
GPU3D.cpp

773
src/GBACart.cpp Normal file
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@ -0,0 +1,773 @@
/*
Copyright 2019 Arisotura, Raphaël Zumer
This file is part of melonDS.
melonDS 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 3 of the License, or (at your option)
any later version.
melonDS 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 melonDS. If not, see http://www.gnu.org/licenses/.
*/
#include <stdio.h>
#include <string.h>
#include "GBACart.h"
#include "CRC32.h"
#include "Platform.h"
namespace GBACart_SRAM
{
enum SaveType {
S_NULL,
S_EEPROM4K,
S_EEPROM64K,
S_SRAM256K,
S_FLASH512K,
S_FLASH1M
};
// from DeSmuME
struct FlashProperties
{
u8 state;
u8 cmd;
u8 device;
u8 manufacturer;
u8 bank;
};
u8* SRAM;
FILE* SRAMFile;
u32 SRAMLength;
SaveType SRAMType;
FlashProperties SRAMFlashState;
char SRAMPath[1024];
void (*WriteFunc)(u32 addr, u8 val);
void Write_Null(u32 addr, u8 val);
void Write_EEPROM(u32 addr, u8 val);
void Write_SRAM(u32 addr, u8 val);
void Write_Flash(u32 addr, u8 val);
bool Init()
{
SRAM = NULL;
SRAMFile = NULL;
return true;
}
void DeInit()
{
if (SRAMFile) fclose(SRAMFile);
if (SRAM) delete[] SRAM;
}
void Reset()
{
// do nothing, we don't want to clear GBA SRAM on reset
}
void Eject()
{
if (SRAMFile) fclose(SRAMFile);
if (SRAM) delete[] SRAM;
SRAM = NULL;
SRAMFile = NULL;
SRAMLength = 0;
SRAMType = S_NULL;
SRAMFlashState = {};
}
void DoSavestate(Savestate* file)
{
file->Section("GBCS"); // Game Boy [Advance] Cart Save
// logic mostly copied from NDSCart_SRAM
u32 oldlen = SRAMLength;
file->Var32(&SRAMLength);
if (SRAMLength != oldlen)
{
// reallocate save memory
if (oldlen) delete[] SRAM;
if (SRAMLength) SRAM = new u8[SRAMLength];
}
if (SRAMLength)
{
// fill save memory if data is present
file->VarArray(SRAM, SRAMLength);
}
else
{
// no save data, clear the current state
SRAMType = SaveType::S_NULL;
if (SRAMFile) fclose(SRAMFile);
SRAM = NULL;
SRAMFile = NULL;
return;
}
// persist some extra state info
file->Var8(&SRAMFlashState.bank);
file->Var8(&SRAMFlashState.cmd);
file->Var8(&SRAMFlashState.device);
file->Var8(&SRAMFlashState.manufacturer);
file->Var8(&SRAMFlashState.state);
file->Var8((u8*)&SRAMType);
}
void LoadSave(const char* path)
{
if (SRAM) delete[] SRAM;
strncpy(SRAMPath, path, 1023);
SRAMPath[1023] = '\0';
SRAMLength = 0;
FILE* f = Platform::OpenFile(SRAMPath, "r+b");
if (f)
{
fseek(f, 0, SEEK_END);
SRAMLength = (u32)ftell(f);
SRAM = new u8[SRAMLength];
fseek(f, 0, SEEK_SET);
fread(SRAM, SRAMLength, 1, f);
SRAMFile = f;
}
switch (SRAMLength)
{
case 512:
SRAMType = S_EEPROM4K;
WriteFunc = Write_EEPROM;
break;
case 8192:
SRAMType = S_EEPROM64K;
WriteFunc = Write_EEPROM;
break;
case 32768:
SRAMType = S_SRAM256K;
WriteFunc = Write_SRAM;
break;
case 65536:
SRAMType = S_FLASH512K;
WriteFunc = Write_Flash;
break;
case 128*1024:
SRAMType = S_FLASH1M;
WriteFunc = Write_Flash;
break;
default:
printf("!! BAD SAVE LENGTH %d\n", SRAMLength);
case 0:
SRAMType = S_NULL;
WriteFunc = Write_Null;
break;
}
if (SRAMType == S_FLASH512K)
{
// Panasonic 64K chip
SRAMFlashState.device = 0x1B;
SRAMFlashState.manufacturer = 0x32;
}
else if (SRAMType == S_FLASH1M)
{
// Sanyo 128K chip
SRAMFlashState.device = 0x13;
SRAMFlashState.manufacturer = 0x62;
}
}
void RelocateSave(const char* path, bool write)
{
if (!write)
{
LoadSave(path); // lazy
return;
}
strncpy(SRAMPath, path, 1023);
SRAMPath[1023] = '\0';
FILE *f = Platform::OpenFile(path, "r+b");
if (!f)
{
printf("GBACart_SRAM::RelocateSave: failed to create new file. fuck\n");
return;
}
SRAMFile = f;
fwrite(SRAM, SRAMLength, 1, SRAMFile);
}
// mostly ported from DeSmuME
u8 Read_Flash(u32 addr)
{
if (SRAMFlashState.cmd == 0) // no cmd
{
return *(u8*)&SRAM[addr + 0x10000 * SRAMFlashState.bank];
}
switch (SRAMFlashState.cmd)
{
case 0x90: // chip ID
if (addr == 0x0000) return SRAMFlashState.manufacturer;
if (addr == 0x0001) return SRAMFlashState.device;
break;
case 0xF0: // terminate command (TODO: break if non-Macronix chip and not at the end of an ID call?)
SRAMFlashState.state = 0;
SRAMFlashState.cmd = 0;
break;
case 0xA0: // write command
break; // ignore here, handled in Write_Flash()
case 0xB0: // bank switching (128K only)
break; // ignore here, handled in Write_Flash()
default:
printf("GBACart_SRAM::Read_Flash: unknown command 0x%02X @ 0x%04X\n", SRAMFlashState.cmd, addr);
break;
}
return 0xFF;
}
void Write_Null(u32 addr, u8 val) {}
void Write_EEPROM(u32 addr, u8 val)
{
// TODO: could be used in homebrew?
}
// mostly ported from DeSmuME
void Write_Flash(u32 addr, u8 val)
{
switch (SRAMFlashState.state)
{
case 0x00:
if (addr == 0x5555)
{
if (val == 0xF0)
{
// reset
SRAMFlashState.state = 0;
SRAMFlashState.cmd = 0;
return;
}
else if (val == 0xAA)
{
SRAMFlashState.state = 1;
return;
}
}
if (addr == 0x0000)
{
if (SRAMFlashState.cmd == 0xB0)
{
// bank switching
SRAMFlashState.bank = val;
SRAMFlashState.cmd = 0;
return;
}
}
break;
case 0x01:
if (addr == 0x2AAA && val == 0x55)
{
SRAMFlashState.state = 2;
return;
}
SRAMFlashState.state = 0;
break;
case 0x02:
if (addr == 0x5555)
{
// send command
switch (val)
{
case 0x80: // erase
SRAMFlashState.state = 0x80;
break;
case 0x90: // chip ID
SRAMFlashState.state = 0x90;
break;
case 0xA0: // write
SRAMFlashState.state = 0;
break;
default:
SRAMFlashState.state = 0;
break;
}
SRAMFlashState.cmd = val;
return;
}
SRAMFlashState.state = 0;
break;
// erase
case 0x80:
if (addr == 0x5555 && val == 0xAA)
{
SRAMFlashState.state = 0x81;
return;
}
SRAMFlashState.state = 0;
break;
case 0x81:
if (addr == 0x2AAA && val == 0x55)
{
SRAMFlashState.state = 0x82;
return;
}
SRAMFlashState.state = 0;
break;
case 0x82:
if (val == 0x30)
{
u32 start_addr = addr + 0x10000 * SRAMFlashState.bank;
memset((u8*)&SRAM[start_addr], 0xFF, 0x1000);
if (SRAMFile)
{
fseek(SRAMFile, start_addr, SEEK_SET);
fwrite((u8*)&SRAM[start_addr], 1, 0x1000, SRAMFile);
}
}
SRAMFlashState.state = 0;
SRAMFlashState.cmd = 0;
return;
// chip ID
case 0x90:
if (addr == 0x5555 && val == 0xAA)
{
SRAMFlashState.state = 0x91;
return;
}
SRAMFlashState.state = 0;
break;
case 0x91:
if (addr == 0x2AAA && val == 0x55)
{
SRAMFlashState.state = 0x92;
return;
}
SRAMFlashState.state = 0;
break;
case 0x92:
SRAMFlashState.state = 0;
SRAMFlashState.cmd = 0;
return;
default:
break;
}
if (SRAMFlashState.cmd == 0xA0) // write
{
Write_SRAM(addr + 0x10000 * SRAMFlashState.bank, val);
SRAMFlashState.state = 0;
SRAMFlashState.cmd = 0;
return;
}
printf("GBACart_SRAM::Write_Flash: unknown write 0x%02X @ 0x%04X (state: 0x%02X)\n",
val, addr, SRAMFlashState.state);
}
void Write_SRAM(u32 addr, u8 val)
{
u8 prev = *(u8*)&SRAM[addr];
if (prev != val)
{
*(u8*)&SRAM[addr] = val;
if (SRAMFile)
{
fseek(SRAMFile, addr, SEEK_SET);
fwrite((u8*)&SRAM[addr], 1, 1, SRAMFile);
}
}
}
u8 Read8(u32 addr)
{
if (SRAMType == S_NULL)
{
return 0xFF;
}
if (SRAMType == S_FLASH512K || SRAMType == S_FLASH1M)
{
return Read_Flash(addr);
}
return *(u8*)&SRAM[addr];
}
u16 Read16(u32 addr)
{
if (SRAMType == S_NULL)
{
return 0xFFFF;
}
if (SRAMType == S_FLASH512K || SRAMType == S_FLASH1M)
{
u16 val = Read_Flash(addr + 0) |
(Read_Flash(addr + 1) << 8);
return val;
}
return *(u16*)&SRAM[addr];
}
u32 Read32(u32 addr)
{
if (SRAMType == S_NULL)
{
return 0xFFFFFFFF;
}
if (SRAMType == S_FLASH512K || SRAMType == S_FLASH1M)
{
u32 val = Read_Flash(addr + 0) |
(Read_Flash(addr + 1) << 8) |
(Read_Flash(addr + 2) << 16) |
(Read_Flash(addr + 3) << 24);
return val;
}
return *(u32*)&SRAM[addr];
}
void Write8(u32 addr, u8 val)
{
u8 prev = *(u8*)&SRAM[addr];
WriteFunc(addr, val);
}
void Write16(u32 addr, u16 val)
{
u16 prev = *(u16*)&SRAM[addr];
WriteFunc(addr + 0, val & 0xFF);
WriteFunc(addr + 1, val >> 8 & 0xFF);
}
void Write32(u32 addr, u32 val)
{
u32 prev = *(u32*)&SRAM[addr];
WriteFunc(addr + 0, val & 0xFF);
WriteFunc(addr + 1, val >> 8 & 0xFF);
WriteFunc(addr + 2, val >> 16 & 0xFF);
WriteFunc(addr + 3, val >> 24 & 0xFF);
}
}
namespace GBACart
{
const char SOLAR_SENSOR_GAMECODES[10][5] =
{
"U3IJ", // Bokura no Taiyou - Taiyou Action RPG (Japan)
"U3IE", // Boktai - The Sun Is in Your Hand (USA)
"U3IP", // Boktai - The Sun Is in Your Hand (Europe)
"U32J", // Zoku Bokura no Taiyou - Taiyou Shounen Django (Japan)
"U32E", // Boktai 2 - Solar Boy Django (USA)
"U32P", // Boktai 2 - Solar Boy Django (Europe)
"U33J", // Shin Bokura no Taiyou - Gyakushuu no Sabata (Japan)
"A3IJ" // Boktai - The Sun Is in Your Hand (USA) (Sample)
};
bool CartInserted;
bool HasSolarSensor;
u8* CartROM;
u32 CartROMSize;
u32 CartCRC;
u32 CartID;
GPIO CartGPIO; // overridden GPIO parameters
bool Init()
{
if (!GBACart_SRAM::Init()) return false;
CartROM = NULL;
return true;
}
void DeInit()
{
if (CartROM) delete[] CartROM;
GBACart_SRAM::DeInit();
}
void Reset()
{
// Do not reset cartridge ROM.
// Prefer keeping the inserted cartridge on reset.
// This allows resetting a DS game without losing GBA state,
// and resetting to firmware without the slot being emptied.
// The Stop function will clear the cartridge state via Eject().
GBACart_SRAM::Reset();
GBACart_SolarSensor::Reset();
}
void Eject()
{
if (CartROM) delete[] CartROM;
CartInserted = false;
HasSolarSensor = false;
CartROM = NULL;
CartROMSize = 0;
CartCRC = NULL;
CartID = NULL;
CartGPIO = {};
GBACart_SRAM::Eject();
Reset();
}
void DoSavestate(Savestate* file)
{
file->Section("GBAC"); // Game Boy Advance Cartridge
// logic mostly copied from NDSCart
// first we need to reload the cart itself,
// since unlike with DS, it's not loaded in advance
file->Var32(&CartROMSize);
if (!CartROMSize) // no GBA cartridge state? nothing to do here
{
// do eject the cartridge if something is inserted
Eject();
return;
}
u32 oldCRC = CartCRC;
file->Var32(&CartCRC);
if (CartCRC != oldCRC)
{
// delete and reallocate ROM so that it is zero-padded to its full length
if (CartROM) delete[] CartROM;
CartROM = new u8[CartROMSize];
// clear the SRAM file handle; writes will not be committed
if (GBACart_SRAM::SRAMFile)
{
fclose(GBACart_SRAM::SRAMFile);
GBACart_SRAM::SRAMFile = NULL;
}
}
// only save/load the cartridge header
//
// GBA connectivity on DS mainly involves identifying the title currently
// inserted, reading save data, and issuing commands intercepted here
// (e.g. solar sensor signals). we don't know of any case where GBA ROM is
// read directly from DS software. therefore, it is more practical, both
// from the development and user experience perspectives, to avoid dealing
// with file dependencies, and store a small portion of ROM data that should
// satisfy the needs of all known software that reads from the GBA slot.
//
// note: in case of a state load, only the cartridge header is restored, but
// the rest of the ROM data is only cleared (zero-initialized) if the CRC
// differs. Therefore, loading the GBA cartridge associated with the save state
// in advance will maintain access to the full ROM contents.
file->VarArray(CartROM, 192);
CartInserted = true; // known, because CartROMSize > 0
file->Var32(&CartCRC);
file->Var32(&CartID);
file->Var8((u8*)&HasSolarSensor);
file->Var16(&CartGPIO.control);
file->Var16(&CartGPIO.data);
file->Var16(&CartGPIO.direction);
// now do the rest
GBACart_SRAM::DoSavestate(file);
if (HasSolarSensor) GBACart_SolarSensor::DoSavestate(file);
}
bool LoadROM(const char* path, const char* sram)
{
FILE* f = Platform::OpenFile(path, "rb");
if (!f)
{
return false;
}
if (CartInserted)
{
Reset();
}
fseek(f, 0, SEEK_END);
u32 len = (u32)ftell(f);
CartROMSize = 0x200;
while (CartROMSize < len)
CartROMSize <<= 1;
char gamecode[5] = { '\0' };
fseek(f, 0xAC, SEEK_SET);
fread(&gamecode, 1, 4, f);
printf("Game code: %s\n", gamecode);
for (int i = 0; i < sizeof(SOLAR_SENSOR_GAMECODES)/sizeof(SOLAR_SENSOR_GAMECODES[0]); i++)
{
if (strcmp(gamecode, SOLAR_SENSOR_GAMECODES[i]) == 0) HasSolarSensor = true;
}
if (HasSolarSensor)
{
printf("GBA solar sensor support detected!\n");
}
CartROM = new u8[CartROMSize];
memset(CartROM, 0, CartROMSize);
fseek(f, 0, SEEK_SET);
fread(CartROM, 1, len, f);
fclose(f);
CartCRC = CRC32(CartROM, CartROMSize);
printf("ROM CRC32: %08X\n", CartCRC);
CartInserted = true;
// save
printf("Save file: %s\n", sram);
GBACart_SRAM::LoadSave(sram);
return true;
}
void RelocateSave(const char* path, bool write)
{
// derp herp
GBACart_SRAM::RelocateSave(path, write);
}
// referenced from mGBA
void WriteGPIO(u32 addr, u16 val)
{
switch (addr)
{
case 0xC4:
CartGPIO.data &= ~CartGPIO.direction;
CartGPIO.data |= val & CartGPIO.direction;
if (HasSolarSensor) GBACart_SolarSensor::Process(&CartGPIO);
break;
case 0xC6:
CartGPIO.direction = val;
break;
case 0xC8:
CartGPIO.control = val;
break;
default:
printf("Unknown GBA GPIO write 0x%02X @ 0x%04X\n", val, addr);
}
// write the GPIO values in the ROM (if writable)
if (CartGPIO.control & 1)
{
*(u16*)&CartROM[0xC4] = CartGPIO.data;
*(u16*)&CartROM[0xC6] = CartGPIO.direction;
*(u16*)&CartROM[0xC8] = CartGPIO.control;
}
else
{
// GBATEK: "in write-only mode, reads return 00h (or [possibly] other data (...))"
// ambiguous, but mGBA sets ROM to 00h when switching to write-only, so do the same
*(u16*)&CartROM[0xC4] = 0;
*(u16*)&CartROM[0xC6] = 0;
*(u16*)&CartROM[0xC8] = 0;
}
}
}
namespace GBACart_SolarSensor
{
bool LightEdge;
u8 LightCounter;
u8 LightSample;
u8 LightLevel; // 0-10 range
// levels from mGBA
const int GBA_LUX_LEVELS[11] = { 0, 5, 11, 18, 27, 42, 62, 84, 109, 139, 183 };
#define LIGHT_VALUE (0xFF - (0x16 + GBA_LUX_LEVELS[LightLevel]))
void Reset()
{
LightEdge = false;
LightCounter = 0;
LightSample = 0xFF;
LightLevel = 0;
}
void DoSavestate(Savestate* file)
{
file->Var8((u8*)&LightEdge);
file->Var8(&LightCounter);
file->Var8(&LightSample);
file->Var8(&LightLevel);
}
void Process(GBACart::GPIO* gpio)
{
if (gpio->data & 4) return; // Boktai chip select
if (gpio->data & 2) // Reset
{
u8 prev = LightSample;
LightCounter = 0;
LightSample = LIGHT_VALUE;
printf("Solar sensor reset (sample: 0x%02X -> 0x%02X)\n", prev, LightSample);
}
if (gpio->data & 1 && LightEdge) LightCounter++;
LightEdge = !(gpio->data & 1);
bool sendBit = LightCounter >= LightSample;
if (gpio->control & 1)
{
gpio->data = (gpio->data & gpio->direction) | ((sendBit << 3) & ~gpio->direction & 0xF);
}
}
}

87
src/GBACart.h Normal file
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@ -0,0 +1,87 @@
/*
Copyright 2019 Arisotura, Raphaël Zumer
This file is part of melonDS.
melonDS 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 3 of the License, or (at your option)
any later version.
melonDS 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 melonDS. If not, see http://www.gnu.org/licenses/.
*/
#ifndef GBACART_H
#define GBACART_H
#include "types.h"
#include "Savestate.h"
namespace GBACart_SRAM
{
extern u8* SRAM;
extern u32 SRAMLength;
void Reset();
void DoSavestate(Savestate* file);
u8 Read8(u32 addr);
u16 Read16(u32 addr);
u32 Read32(u32 addr);
void Write8(u32 addr, u8 val);
void Write16(u32 addr, u16 val);
void Write32(u32 addr, u32 val);
}
namespace GBACart
{
struct GPIO
{
u16 data;
u16 direction;
u16 control;
};
extern bool CartInserted;
extern bool HasSolarSensor;
extern u8* CartROM;
extern u32 CartROMSize;
extern u32 CartCRC;
bool Init();
void DeInit();
void Reset();
void Eject();
void DoSavestate(Savestate* file);
bool LoadROM(const char* path, const char* sram);
void RelocateSave(const char* path, bool write);
void WriteGPIO(u32 addr, u16 val);
}
namespace GBACart_SolarSensor
{
extern u8 LightLevel;
void Reset();
void DoSavestate(Savestate* file);
void Process(GBACart::GPIO* gpio);
}
#endif // GBACART_H

274
src/NDS.cpp
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@ -22,6 +22,7 @@
#include "NDS.h"
#include "ARM.h"
#include "NDSCart.h"
#include "GBACart.h"
#include "DMA.h"
#include "FIFO.h"
#include "GPU.h"
@ -169,6 +170,7 @@ bool Init()
IPCFIFO7 = new FIFO<u32>(16);
if (!NDSCart::Init()) return false;
if (!GBACart::Init()) return false;
if (!GPU::Init()) return false;
if (!SPU::Init()) return false;
if (!SPI::Init()) return false;
@ -190,6 +192,7 @@ void DeInit()
delete IPCFIFO7;
NDSCart::DeInit();
GBACart::DeInit();
GPU::DeInit();
SPU::DeInit();
SPI::DeInit();
@ -491,6 +494,7 @@ void Reset()
RCnt = 0;
NDSCart::Reset();
GBACart::Reset();
GPU::Reset();
SPU::Reset();
SPI::Reset();
@ -692,6 +696,7 @@ bool DoSavestate(Savestate* file)
ARM7->DoSavestate(file);
NDSCart::DoSavestate(file);
GBACart::DoSavestate(file);
GPU::DoSavestate(file);
SPU::DoSavestate(file);
SPI::DoSavestate(file);
@ -720,6 +725,19 @@ bool LoadROM(const char* path, const char* sram, bool direct)
}
}
bool LoadGBAROM(const char* path, const char* sram)
{
if (GBACart::LoadROM(path, sram))
{
return true;
}
else
{
printf("Failed to load ROM %s\n", path);
return false;
}
}
void LoadBIOS()
{
Reset();
@ -1610,16 +1628,20 @@ u8 ARM9Read8(u32 addr)
case 0x08000000:
case 0x09000000:
if (ExMemCnt[0] & (1<<7)) return 0xFF; // TODO: proper open bus
//return *(u8*)&NDSCart::CartROM[addr & (NDSCart::CartROMSize-1)];
//printf("GBA read8 %08X\n", addr);
// TODO!!!
return 0xFF;
if (ExMemCnt[0] & (1<<7)) return 0x00; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return *(u8*)&GBACart::CartROM[addr & (GBACart::CartROMSize-1)];
}
return 0xFF; // TODO: proper open bus
case 0x0A000000:
if (ExMemCnt[0] & (1<<7)) return 0xFF; // TODO: proper open bus
// TODO!!!
return 0xFF;
if (ExMemCnt[0] & (1<<7)) return 0x00; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return GBACart_SRAM::Read8(addr & (GBACart_SRAM::SRAMLength-1));
}
return 0xFF; // TODO: proper open bus
}
printf("unknown arm9 read8 %08X\n", addr);
@ -1671,16 +1693,20 @@ u16 ARM9Read16(u32 addr)
case 0x08000000:
case 0x09000000:
if (ExMemCnt[0] & (1<<7)) return 0xFFFF; // TODO: proper open bus
//return *(u8*)&NDSCart::CartROM[addr & (NDSCart::CartROMSize-1)];
//printf("GBA read8 %08X\n", addr);
// TODO!!!
return 0xFFFF;
if (ExMemCnt[0] & (1<<7)) return 0x0000; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return *(u16*)&GBACart::CartROM[addr & (GBACart::CartROMSize-1)];
}
return 0xFFFF; // TODO: proper open bus
case 0x0A000000:
if (ExMemCnt[0] & (1<<7)) return 0xFFFF; // TODO: proper open bus
// TODO!!!
return 0xFFFF;
if (ExMemCnt[0] & (1<<7)) return 0x0000; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return GBACart_SRAM::Read16(addr & (GBACart_SRAM::SRAMLength-1));
}
return 0xFFFF; // TODO: proper open bus
}
//printf("unknown arm9 read16 %08X %08X\n", addr, ARM9->R[15]);
@ -1732,16 +1758,20 @@ u32 ARM9Read32(u32 addr)
case 0x08000000:
case 0x09000000:
if (ExMemCnt[0] & (1<<7)) return 0xFFFFFFFF; // TODO: proper open bus
//return *(u8*)&NDSCart::CartROM[addr & (NDSCart::CartROMSize-1)];
//printf("GBA read8 %08X\n", addr);
// TODO!!!
return 0xFFFFFFFF;
if (ExMemCnt[0] & (1<<7)) return 0x00000000; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return *(u32*)&GBACart::CartROM[addr & (GBACart::CartROMSize-1)];
}
return 0xFFFFFFFF; // TODO: proper open bus
case 0x0A000000:
if (ExMemCnt[0] & (1<<7)) return 0xFFFFFFFF; // TODO: proper open bus
// TODO!!!
return 0xFFFFFFFF;
if (ExMemCnt[0] & (1<<7)) return 0x00000000; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return GBACart_SRAM::Read32(addr & (GBACart_SRAM::SRAMLength-1));
}
return 0xFFFFFFFF; // TODO: proper open bus
}
printf("unknown arm9 read32 %08X | %08X %08X\n", addr, ARM9->R[15], ARM9->R[12]);
@ -1772,6 +1802,27 @@ void ARM9Write8(u32 addr, u8 val)
case 0x07000000:
// checkme
return;
case 0x08000000:
case 0x09000000:
if (ExMemCnt[0] & (1<<7)) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
if ((addr & 0x00FFFFFF) >= 0xC4 && (addr & 0x00FFFFFF) <= 0xC9)
{
GBACart::WriteGPIO(addr & (GBACart::CartROMSize-1), val);
return;
}
}
break;
case 0x0A000000:
if (ExMemCnt[0] & (1<<7)) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
GBACart_SRAM::Write8(addr & (GBACart_SRAM::SRAMLength-1), val);
}
return;
}
printf("unknown arm9 write8 %08X %02X\n", addr, val);
@ -1815,6 +1866,29 @@ void ARM9Write16(u32 addr, u16 val)
if (!(PowerControl9 & ((addr & 0x400) ? (1<<9) : (1<<1)))) return;
*(u16*)&GPU::OAM[addr & 0x7FF] = val;
return;
case 0x08000000:
case 0x09000000:
if (ExMemCnt[0] & (1<<7)) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
// Note: the lower bound is adjusted such that a write starting
// there will hit the first byte of the GPIO region.
if ((addr & 0x00FFFFFF) >= 0xC3 && (addr & 0x00FFFFFF) <= 0xC9)
{
GBACart::WriteGPIO(addr & (GBACart::CartROMSize-1), val);
return;
}
}
break;
case 0x0A000000:
if (ExMemCnt[0] & (1<<7)) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
GBACart_SRAM::Write16(addr & (GBACart_SRAM::SRAMLength-1), val);
}
return;
}
//printf("unknown arm9 write16 %08X %04X\n", addr, val);
@ -1858,6 +1932,30 @@ void ARM9Write32(u32 addr, u32 val)
if (!(PowerControl9 & ((addr & 0x400) ? (1<<9) : (1<<1)))) return;
*(u32*)&GPU::OAM[addr & 0x7FF] = val;
return;
case 0x08000000:
case 0x09000000:
if (ExMemCnt[0] & (1<<7)) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
// Note: the lower bound is adjusted such that a write starting
// there will hit the first byte of the GPIO region.
if ((addr & 0x00FFFFFF) >= 0xC1 && (addr & 0x00FFFFFF) <= 0xC9)
{
GBACart::WriteGPIO(addr & (GBACart::CartROMSize-1), val & 0xFF);
GBACart::WriteGPIO((addr + 2) & (GBACart::CartROMSize-1), (val >> 16) & 0xFF);
return;
}
}
break;
case 0x0A000000:
if (ExMemCnt[0] & (1<<7)) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
GBACart_SRAM::Write32(addr & (GBACart_SRAM::SRAMLength-1), val);
}
return;
}
printf("unknown arm9 write32 %08X %08X | %08X\n", addr, val, ARM9->R[15]);
@ -1935,16 +2033,20 @@ u8 ARM7Read8(u32 addr)
case 0x08000000:
case 0x09000000:
if (!(ExMemCnt[0] & (1<<7))) return 0xFF; // TODO: proper open bus
//return *(u8*)&NDSCart::CartROM[addr & (NDSCart::CartROMSize-1)];
//printf("GBA read8 %08X\n", addr);
// TODO!!!
return 0xFF;
if (!(ExMemCnt[0] & (1<<7))) return 0x00; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return *(u8*)&GBACart::CartROM[addr & (GBACart::CartROMSize-1)];
}
return 0xFF; // TODO: proper open bus
case 0x0A000000:
if (!(ExMemCnt[0] & (1<<7))) return 0xFF; // TODO: proper open bus
// TODO!!!
return 0xFF;
if (!(ExMemCnt[0] & (1<<7))) return 0x00; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return GBACart_SRAM::Read8(addr & (GBACart_SRAM::SRAMLength-1));
}
return 0xFF; // TODO: proper open bus
}
printf("unknown arm7 read8 %08X %08X %08X/%08X\n", addr, ARM7->R[15], ARM7->R[0], ARM7->R[1]);
@ -1998,16 +2100,20 @@ u16 ARM7Read16(u32 addr)
case 0x08000000:
case 0x09000000:
if (!(ExMemCnt[0] & (1<<7))) return 0xFFFF; // TODO: proper open bus
//return *(u8*)&NDSCart::CartROM[addr & (NDSCart::CartROMSize-1)];
//printf("GBA read8 %08X\n", addr);
// TODO!!!
return 0xFFFF;
if (!(ExMemCnt[0] & (1<<7))) return 0x0000; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return *(u16*)&GBACart::CartROM[addr & (GBACart::CartROMSize-1)];
}
return 0xFFFF; // TODO: proper open bus
case 0x0A000000:
if (!(ExMemCnt[0] & (1<<7))) return 0xFFFF; // TODO: proper open bus
// TODO!!!
return 0xFFFF;
if (!(ExMemCnt[0] & (1<<7))) return 0x0000; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return GBACart_SRAM::Read16(addr & (GBACart_SRAM::SRAMLength-1));
}
return 0xFFFF; // TODO: proper open bus
}
printf("unknown arm7 read16 %08X %08X\n", addr, ARM7->R[15]);
@ -2061,16 +2167,20 @@ u32 ARM7Read32(u32 addr)
case 0x08000000:
case 0x09000000:
if (!(ExMemCnt[0] & (1<<7))) return 0xFFFFFFFF; // TODO: proper open bus
//return *(u8*)&NDSCart::CartROM[addr & (NDSCart::CartROMSize-1)];
//printf("GBA read8 %08X\n", addr);
// TODO!!!
return 0xFFFFFFFF;
if (!(ExMemCnt[0] & (1<<7))) return 0x00000000; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return *(u32*)&GBACart::CartROM[addr & (GBACart::CartROMSize-1)];
}
return 0xFFFFFFFF; // TODO: proper open bus
case 0x0A000000:
if (!(ExMemCnt[0] & (1<<7))) return 0xFFFFFFFF; // TODO: proper open bus
// TODO!!!
return 0xFFFFFFFF;
if (!(ExMemCnt[0] & (1<<7))) return 0x00000000; // deselected CPU is 00h-filled
if (GBACart::CartInserted)
{
return GBACart_SRAM::Read32(addr & (GBACart_SRAM::SRAMLength-1));
}
return 0xFFFFFFFF; // TODO: proper open bus
}
printf("unknown arm7 read32 %08X | %08X\n", addr, ARM7->R[15]);
@ -2110,6 +2220,27 @@ void ARM7Write8(u32 addr, u8 val)
case 0x06800000:
GPU::WriteVRAM_ARM7<u8>(addr, val);
return;
case 0x08000000:
case 0x09000000:
if (!(ExMemCnt[0] & (1<<7))) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
if ((addr & 0x00FFFFFF) >= 0xC4 && (addr & 0x00FFFFFF) <= 0xC9)
{
GBACart::WriteGPIO(addr & (GBACart::CartROMSize-1), val);
return;
}
}
break;
case 0x0A000000:
if (!(ExMemCnt[0] & (1<<7))) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
GBACart_SRAM::Write8(addr & (GBACart_SRAM::SRAMLength-1), val);
}
return;
}
printf("unknown arm7 write8 %08X %02X @ %08X\n", addr, val, ARM7->R[15]);
@ -2156,6 +2287,29 @@ void ARM7Write16(u32 addr, u16 val)
case 0x06800000:
GPU::WriteVRAM_ARM7<u16>(addr, val);
return;
case 0x08000000:
case 0x09000000:
if (!(ExMemCnt[0] & (1<<7))) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
// Note: the lower bound is adjusted such that a write starting
// there will hit the first byte of the GPIO region.
if ((addr & 0x00FFFFFF) >= 0xC3 && (addr & 0x00FFFFFF) <= 0xC9)
{
GBACart::WriteGPIO(addr & (GBACart::CartROMSize-1), val);
return;
}
}
break;
case 0x0A000000:
if (!(ExMemCnt[0] & (1<<7))) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
GBACart_SRAM::Write16(addr & (GBACart_SRAM::SRAMLength-1), val);
}
return;
}
//printf("unknown arm7 write16 %08X %04X @ %08X\n", addr, val, ARM7->R[15]);
@ -2203,6 +2357,30 @@ void ARM7Write32(u32 addr, u32 val)
case 0x06800000:
GPU::WriteVRAM_ARM7<u32>(addr, val);
return;
case 0x08000000:
case 0x09000000:
if (!(ExMemCnt[0] & (1<<7))) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
// Note: the lower bound is adjusted such that a write starting
// there will hit the first byte of the GPIO region.
if ((addr & 0x00FFFFFF) >= 0xC1 && (addr & 0x00FFFFFF) <= 0xC9)
{
GBACart::WriteGPIO(addr & (GBACart::CartROMSize-1), val & 0xFF);
GBACart::WriteGPIO((addr + 2) & (GBACart::CartROMSize-1), (val >> 16) & 0xFF);
return;
}
}
break;
case 0x0A000000:
if (!(ExMemCnt[0] & (1<<7))) return; // deselected CPU, skip the write
if (GBACart::CartInserted)
{
GBACart_SRAM::Write32(addr & (GBACart_SRAM::SRAMLength-1), val);
}
return;
}
//printf("unknown arm7 write32 %08X %08X @ %08X\n", addr, val, ARM7->R[15]);

1
src/NDS.h
View File

@ -135,6 +135,7 @@ void SetARM9RegionTimings(u32 addrstart, u32 addrend, int buswidth, int nonseq,
void SetARM7RegionTimings(u32 addrstart, u32 addrend, int buswidth, int nonseq, int seq);
bool LoadROM(const char* path, const char* sram, bool direct);
bool LoadGBAROM(const char* path, const char* sram);
void LoadBIOS();
void SetupDirectBoot();
void RelocateSave(const char* path, bool write);

3
src/NDSCart.cpp
View File

@ -48,7 +48,6 @@ void Write_Null(u8 val, bool islast);
void Write_EEPROMTiny(u8 val, bool islast);
void Write_EEPROM(u8 val, bool islast);
void Write_Flash(u8 val, bool islast);
void Write_Discover(u8 val, bool islast);
bool Init()
@ -399,7 +398,7 @@ void Write(u8 val, u32 hold)
switch (CurCmd)
{
case 0x00:
// Pokémon carts have an IR transceiver thing, and send this
// Pokémon carts have an IR transceiver thing, and send this
// to bypass it and access SRAM.
// TODO: design better
CurCmd = val;

6
src/libui_sdl/DlgInputConfig.cpp
View File

@ -71,7 +71,9 @@ char hotkeylabels[HK_MAX][32] =
"Pause/resume:",
"Reset:",
"Fast forward:",
"Fast forward (toggle):"
"Fast forward (toggle):",
"Decrease sunlight (Boktai):",
"Increase sunlight (Boktai):"
};
int openedmask;
@ -514,7 +516,7 @@ void Open(int type)
memcpy(dlg->keymap, Config::HKKeyMapping, sizeof(int)*HK_MAX);
memcpy(dlg->joymap, Config::HKJoyMapping, sizeof(int)*HK_MAX);
dlg->win = uiNewWindow("Hotkey config - melonDS", 600, 100, 0, 0, 0);
dlg->win = uiNewWindow("Hotkey config - melonDS", 700, 100, 0, 0, 0);
}
uiControl(dlg->win)->UserData = dlg;

30
src/libui_sdl/PlatformConfig.cpp
View File

@ -93,25 +93,29 @@ ConfigEntry PlatformConfigFile[] =
{"Joy_X", 0, &JoyMapping[10], -1, NULL, 0},
{"Joy_Y", 0, &JoyMapping[11], -1, NULL, 0},
{"HKKey_Lid", 0, &HKKeyMapping[HK_Lid], 0x0D, NULL, 0},
{"HKKey_Mic", 0, &HKKeyMapping[HK_Mic], 0x35, NULL, 0},
{"HKKey_Pause", 0, &HKKeyMapping[HK_Pause], -1, NULL, 0},
{"HKKey_Reset", 0, &HKKeyMapping[HK_Reset], -1, NULL, 0},
{"HKKey_FastForward", 0, &HKKeyMapping[HK_FastForward], 0x0F, NULL, 0},
{"HKKey_FastForwardToggle", 0, &HKKeyMapping[HK_FastForwardToggle], -1, NULL, 0},
{"HKKey_Lid", 0, &HKKeyMapping[HK_Lid], 0x0D, NULL, 0},
{"HKKey_Mic", 0, &HKKeyMapping[HK_Mic], 0x35, NULL, 0},
{"HKKey_Pause", 0, &HKKeyMapping[HK_Pause], -1, NULL, 0},
{"HKKey_Reset", 0, &HKKeyMapping[HK_Reset], -1, NULL, 0},
{"HKKey_FastForward", 0, &HKKeyMapping[HK_FastForward], 0x0F, NULL, 0},
{"HKKey_FastForwardToggle", 0, &HKKeyMapping[HK_FastForwardToggle], -1, NULL, 0},
{"HKKey_SolarSensorDecrease", 0, &HKKeyMapping[HK_SolarSensorDecrease], 0x4B, NULL, 0},
{"HKKey_SolarSensorIncrease", 0, &HKKeyMapping[HK_SolarSensorIncrease], 0x4D, NULL, 0},
{"HKJoy_Lid", 0, &HKJoyMapping[HK_Lid], -1, NULL, 0},
{"HKJoy_Mic", 0, &HKJoyMapping[HK_Mic], -1, NULL, 0},
{"HKJoy_Pause", 0, &HKJoyMapping[HK_Pause], -1, NULL, 0},
{"HKJoy_Reset", 0, &HKJoyMapping[HK_Reset], -1, NULL, 0},
{"HKJoy_FastForward", 0, &HKJoyMapping[HK_FastForward], -1, NULL, 0},
{"HKJoy_FastForwardToggle", 0, &HKJoyMapping[HK_FastForwardToggle], -1, NULL, 0},
{"HKJoy_Lid", 0, &HKJoyMapping[HK_Lid], -1, NULL, 0},
{"HKJoy_Mic", 0, &HKJoyMapping[HK_Mic], -1, NULL, 0},
{"HKJoy_Pause", 0, &HKJoyMapping[HK_Pause], -1, NULL, 0},
{"HKJoy_Reset", 0, &HKJoyMapping[HK_Reset], -1, NULL, 0},
{"HKJoy_FastForward", 0, &HKJoyMapping[HK_FastForward], -1, NULL, 0},
{"HKJoy_FastForwardToggle", 0, &HKJoyMapping[HK_FastForwardToggle], -1, NULL, 0},
{"HKJoy_SolarSensorDecrease", 0, &HKJoyMapping[HK_SolarSensorDecrease], -1, NULL, 0},
{"HKJoy_SolarSensorIncrease", 0, &HKJoyMapping[HK_SolarSensorIncrease], -1, NULL, 0},
{"JoystickID", 0, &JoystickID, 0, NULL, 0},
{"WindowWidth", 0, &WindowWidth, 256, NULL, 0},
{"WindowHeight", 0, &WindowHeight, 384, NULL, 0},
{"WindowMax", 0, &WindowMaximized, 0, NULL, 0},
{"WindowMax", 0, &WindowMaximized, 0, NULL, 0},
{"ScreenRotation", 0, &ScreenRotation, 0, NULL, 0},
{"ScreenGap", 0, &ScreenGap, 0, NULL, 0},

2
src/libui_sdl/PlatformConfig.h
View File

@ -29,6 +29,8 @@ enum
HK_Reset,
HK_FastForward,
HK_FastForwardToggle,
HK_SolarSensorDecrease,
HK_SolarSensorIncrease,
HK_MAX
};

195
src/libui_sdl/main.cpp
View File

@ -38,6 +38,7 @@
#include "DlgWifiSettings.h"
#include "../NDS.h"
#include "../GBACart.h"
#include "../GPU.h"
#include "../SPU.h"
#include "../Wifi.h"
@ -105,9 +106,9 @@ int EmuRunning;
volatile int EmuStatus;
bool RunningSomething;
char ROMPath[1024];
char SRAMPath[1024];
char PrevSRAMPath[1024]; // for savestate 'undo load'
char ROMPath[2][1024];
char SRAMPath[2][1024];
char PrevSRAMPath[2][1024]; // for savestate 'undo load'
bool SavestateLoaded;
@ -184,7 +185,7 @@ void SetupScreenRects(int width, int height);
void TogglePause(void* blarg);
void Reset(void* blarg);
void SetupSRAMPath();
void SetupSRAMPath(int slot);
void SaveState(int slot);
void LoadState(int slot);
@ -954,6 +955,24 @@ int EmuThreadFunc(void* burp)
if (HotkeyPressed(HK_Pause)) uiQueueMain(TogglePause, NULL);
if (HotkeyPressed(HK_Reset)) uiQueueMain(Reset, NULL);
if (GBACart::CartInserted && GBACart::HasSolarSensor)
{
if (HotkeyPressed(HK_SolarSensorDecrease))
{
if (GBACart_SolarSensor::LightLevel > 0) GBACart_SolarSensor::LightLevel--;
char msg[64];
sprintf(msg, "Solar sensor level set to %d", GBACart_SolarSensor::LightLevel);
OSD::AddMessage(0, msg);
}
if (HotkeyPressed(HK_SolarSensorIncrease))
{
if (GBACart_SolarSensor::LightLevel < 10) GBACart_SolarSensor::LightLevel++;
char msg[64];
sprintf(msg, "Solar sensor level set to %d", GBACart_SolarSensor::LightLevel);
OSD::AddMessage(0, msg);
}
}
if (EmuRunning == 1)
{
EmuStatus = 1;
@ -1663,12 +1682,18 @@ void Reset(void* blarg)
SavestateLoaded = false;
uiMenuItemDisable(MenuItem_UndoStateLoad);
if (ROMPath[0] == '\0')
if (ROMPath[0][0] == '\0')
NDS::LoadBIOS();
else
{
SetupSRAMPath();
NDS::LoadROM(ROMPath, SRAMPath, Config::DirectBoot);
SetupSRAMPath(0);
NDS::LoadROM(ROMPath[0], SRAMPath[0], Config::DirectBoot);
}
if (ROMPath[1][0] != '\0')
{
SetupSRAMPath(1);
NDS::LoadGBAROM(ROMPath[1], SRAMPath[1]);
}
Run();
@ -1683,6 +1708,10 @@ void Stop(bool internal)
while (EmuStatus != 2);
RunningSomething = false;
// eject any inserted GBA cartridge
GBACart::Eject();
ROMPath[1][0] = '\0';
uiWindowSetTitle(MainWindow, "melonDS " MELONDS_VERSION);
for (int i = 0; i < 9; i++) uiMenuItemDisable(MenuItem_SaveStateSlot[i]);
@ -1703,41 +1732,53 @@ void Stop(bool internal)
OSD::AddMessage(0xFFC040, "Shutdown");
}
void SetupSRAMPath()
void SetupSRAMPath(int slot)
{
strncpy(SRAMPath, ROMPath, 1023);
SRAMPath[1023] = '\0';
strncpy(SRAMPath + strlen(ROMPath) - 3, "sav", 3);
strncpy(SRAMPath[slot], ROMPath[slot], 1023);
SRAMPath[slot][1023] = '\0';
strncpy(SRAMPath[slot] + strlen(ROMPath[slot]) - 3, "sav", 3);
}
void TryLoadROM(char* file, int prevstatus)
void TryLoadROM(char* file, int slot, int prevstatus)
{
char oldpath[1024];
char oldsram[1024];
strncpy(oldpath, ROMPath, 1024);
strncpy(oldsram, SRAMPath, 1024);
strncpy(oldpath, ROMPath[slot], 1024);
strncpy(oldsram, SRAMPath[slot], 1024);
strncpy(ROMPath, file, 1023);
ROMPath[1023] = '\0';
strncpy(ROMPath[slot], file, 1023);
ROMPath[slot][1023] = '\0';
SetupSRAMPath();
SetupSRAMPath(0);
SetupSRAMPath(1);
if (NDS::LoadROM(ROMPath, SRAMPath, Config::DirectBoot))
if (slot == 0 && NDS::LoadROM(ROMPath[slot], SRAMPath[slot], Config::DirectBoot))
{
SavestateLoaded = false;
uiMenuItemDisable(MenuItem_UndoStateLoad);
strncpy(PrevSRAMPath, SRAMPath, 1024); // safety
// Reload the inserted GBA cartridge (if any)
if (ROMPath[1][0] != '\0') NDS::LoadGBAROM(ROMPath[1], SRAMPath[1]);
strncpy(PrevSRAMPath[slot], SRAMPath[slot], 1024); // safety
Run();
}
else if (slot == 1 && NDS::LoadGBAROM(ROMPath[slot], SRAMPath[slot]))
{
SavestateLoaded = false;
uiMenuItemDisable(MenuItem_UndoStateLoad);
strncpy(PrevSRAMPath[slot], SRAMPath[slot], 1024); // safety
if (RunningSomething) Run(); // do not start just from a GBA cart
}
else
{
uiMsgBoxError(MainWindow,
"Failed to load the ROM",
"Make sure the file can be accessed and isn't opened in another application.");
strncpy(ROMPath, oldpath, 1024);
strncpy(SRAMPath, oldsram, 1024);
strncpy(ROMPath[slot], oldpath, 1024);
strncpy(SRAMPath[slot], oldsram, 1024);
EmuRunning = prevstatus;
}
}
@ -1750,22 +1791,22 @@ void GetSavestateName(int slot, char* filename, int len)
{
int pos;
if (ROMPath[0] == '\0') // running firmware, no ROM
if (ROMPath[0][0] == '\0') // running firmware, no ROM
{
strcpy(filename, "firmware");
pos = 8;
}
else
{
int l = strlen(ROMPath);
int l = strlen(ROMPath[0]);
pos = l;
while (ROMPath[pos] != '.' && pos > 0) pos--;
while (ROMPath[0][pos] != '.' && pos > 0) pos--;
if (pos == 0) pos = l;
// avoid buffer overflow. shoddy
if (pos > len-5) pos = len-5;
strncpy(&filename[0], ROMPath, pos);
strncpy(&filename[0], ROMPath[0], pos);
}
strcpy(&filename[pos], ".ml");
filename[pos+3] = '0'+slot;
@ -1809,6 +1850,8 @@ void LoadState(int slot)
return;
}
u32 oldGBACartCRC = GBACart::CartCRC;
// backup
Savestate* backup = new Savestate("timewarp.mln", true);
NDS::DoSavestate(backup);
@ -1833,21 +1876,36 @@ void LoadState(int slot)
if (!failed)
{
if (Config::SavestateRelocSRAM && ROMPath[0]!='\0')
if (Config::SavestateRelocSRAM && ROMPath[0][0]!='\0')
{
strncpy(PrevSRAMPath, SRAMPath, 1024);
strncpy(PrevSRAMPath[0], SRAMPath[0], 1024);
strncpy(SRAMPath, filename, 1019);
int len = strlen(SRAMPath);
strcpy(&SRAMPath[len], ".sav");
SRAMPath[len+4] = '\0';
strncpy(SRAMPath[0], filename, 1019);
int len = strlen(SRAMPath[0]);
strcpy(&SRAMPath[0][len], ".sav");
SRAMPath[0][len+4] = '\0';
NDS::RelocateSave(SRAMPath, false);
NDS::RelocateSave(SRAMPath[0], false);
}
bool loadedPartialGBAROM = false;
// in case we have a GBA cart inserted, and the GBA ROM changes
// due to having loaded a save state, we do not want to reload
// the previous cartridge on reset, or commit writes to any
// loaded save file. therefore, their paths are "nulled".
if (GBACart::CartInserted && GBACart::CartCRC != oldGBACartCRC)
{
ROMPath[1][0] = '\0';
SRAMPath[1][0] = '\0';
loadedPartialGBAROM = true;
}
char msg[64];
if (slot > 0) sprintf(msg, "State loaded from slot %d", slot);
else sprintf(msg, "State loaded from file");
if (slot > 0) sprintf(msg, "State loaded from slot %d%s",
slot, loadedPartialGBAROM ? " (GBA ROM header only)" : "");
else sprintf(msg, "State loaded from file%s",
loadedPartialGBAROM ? " (GBA ROM header only)" : "");
OSD::AddMessage(0, msg);
SavestateLoaded = true;
@ -1898,14 +1956,14 @@ void SaveState(int slot)
if (slot > 0)
uiMenuItemEnable(MenuItem_LoadStateSlot[slot-1]);
if (Config::SavestateRelocSRAM && ROMPath[0]!='\0')
if (Config::SavestateRelocSRAM && ROMPath[0][0]!='\0')
{
strncpy(SRAMPath, filename, 1019);
int len = strlen(SRAMPath);
strcpy(&SRAMPath[len], ".sav");
SRAMPath[len+4] = '\0';
strncpy(SRAMPath[0], filename, 1019);
int len = strlen(SRAMPath[0]);
strcpy(&SRAMPath[0][len], ".sav");
SRAMPath[0][len+4] = '\0';
NDS::RelocateSave(SRAMPath, true);
NDS::RelocateSave(SRAMPath[0], true);
}
}
@ -1932,10 +1990,10 @@ void UndoStateLoad()
NDS::DoSavestate(backup);
delete backup;
if (ROMPath[0]!='\0')
if (ROMPath[0][0]!='\0')
{
strncpy(SRAMPath, PrevSRAMPath, 1024);
NDS::RelocateSave(SRAMPath, false);
strncpy(SRAMPath[0], PrevSRAMPath[0], 1024);
NDS::RelocateSave(SRAMPath[0], false);
}
OSD::AddMessage(0, "State load undone");
@ -1979,7 +2037,11 @@ void OnDropFile(uiWindow* window, char* file, void* blarg)
while (EmuStatus != 2);
}
TryLoadROM(file, prevstatus);
TryLoadROM(file, 0, prevstatus);
}
else if (!strcasecmp(ext, "gba"))
{
TryLoadROM(file, 1, prevstatus);
}
}
@ -2010,7 +2072,7 @@ void OnOpenFile(uiMenuItem* item, uiWindow* window, void* blarg)
EmuRunning = 2;
while (EmuStatus != 2);
char* file = uiOpenFile(window, "DS ROM (*.nds)|*.nds;*.srl|Any file|*.*", Config::LastROMFolder);
char* file = uiOpenFile(window, "DS ROM (*.nds)|*.nds;*.srl|GBA ROM (*.gba)|*.gba|Any file|*.*", Config::LastROMFolder);
if (!file)
{
EmuRunning = prevstatus;
@ -2021,8 +2083,17 @@ void OnOpenFile(uiMenuItem* item, uiWindow* window, void* blarg)
while (file[pos] != '/' && file[pos] != '\\' && pos > 0) pos--;
strncpy(Config::LastROMFolder, file, pos);
Config::LastROMFolder[pos] = '\0';
char* ext = &file[strlen(file)-3];
if (!strcasecmp(ext, "gba"))
{
TryLoadROM(file, 1, prevstatus);
}
else
{
TryLoadROM(file, 0, prevstatus);
}
TryLoadROM(file, prevstatus);
uiFreeText(file);
}
@ -2047,8 +2118,14 @@ void OnRun(uiMenuItem* item, uiWindow* window, void* blarg)
{
if (!RunningSomething)
{
ROMPath[0] = '\0';
ROMPath[0][0] = '\0';
NDS::LoadBIOS();
if (ROMPath[1][0] != '\0')
{
SetupSRAMPath(1);
NDS::LoadGBAROM(ROMPath[1], SRAMPath[1]);
}
}
Run();
@ -2867,14 +2944,30 @@ int main(int argc, char** argv)
if (!strcasecmp(ext, "nds") || !strcasecmp(ext, "srl"))
{
strncpy(ROMPath, file, 1023);
ROMPath[1023] = '\0';
strncpy(ROMPath[0], file, 1023);
ROMPath[0][1023] = '\0';
SetupSRAMPath();
SetupSRAMPath(0);
if (NDS::LoadROM(ROMPath, SRAMPath, Config::DirectBoot))
if (NDS::LoadROM(ROMPath[0], SRAMPath[0], Config::DirectBoot))
Run();
}
if (argc > 2)
{
file = argv[2];
ext = &file[strlen(file)-3];
if (!strcasecmp(ext, "gba"))
{
strncpy(ROMPath[1], file, 1023);
ROMPath[1][1023] = '\0';
SetupSRAMPath(1);
NDS::LoadGBAROM(ROMPath[1], SRAMPath[1]);
}
}
}
uiMain();