This commit is contained in:
twinaphex 2016-08-09 08:21:32 +02:00
parent ccadc59f61
commit 0cd74c1f84
9 changed files with 674 additions and 837 deletions

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@ -14,8 +14,7 @@ SOURCES_CXX += \
$(CORE_EMU_DIR)/mikie.cpp \
$(CORE_EMU_DIR)/ram.cpp \
$(CORE_EMU_DIR)/rom.cpp \
$(CORE_EMU_DIR)/susie.cpp \
$(CORE_EMU_DIR)/system.cpp
$(CORE_EMU_DIR)/susie.cpp
endif
ifeq ($(NEED_BLIP), 1)
@ -81,6 +80,5 @@ SOURCES_CXX += \
$(CORE_DIR)/libretro.cpp
SOURCES_C += \
$(MEDNAFEN_DIR)/file.c \
$(MEDNAFEN_DIR)/general.c
$(MEDNAFEN_DIR)/file.c
endif

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@ -1,3 +1,4 @@
#include <stdarg.h>
#include "mednafen/mednafen.h"
#include "mednafen/mempatcher.h"
#include "mednafen/git.h"
@ -49,6 +50,462 @@ static void set_basename(const char *path)
retro_base_name = retro_base_name.substr(0, retro_base_name.find_last_of('.'));
}
//
// Copyright (c) 2004 K. Wilkins
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from
// the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
//////////////////////////////////////////////////////////////////////////////
// Handy - An Atari Lynx Emulator //
// Copyright (c) 1996,1997 //
// K. Wilkins //
//////////////////////////////////////////////////////////////////////////////
// System object class //
//////////////////////////////////////////////////////////////////////////////
// //
// This class provides the glue to bind of of the emulation objects //
// together via peek/poke handlers and pass thru interfaces to lower //
// objects, all control of the emulator is done via this class. Update() //
// does most of the work and each call emulates one CPU instruction and //
// updates all of the relevant hardware if required. It must be remembered //
// that if that instruction involves setting SPRGO then, it will cause a //
// sprite painting operation and then a corresponding update of all of the //
// hardware which will usually involve recursive calls to Update, see //
// Mikey SPRGO code for more details. //
// //
// K. Wilkins //
// August 1997 //
// //
//////////////////////////////////////////////////////////////////////////////
// Revision History: //
// ----------------- //
// //
// 01Aug1997 KW Document header added & class documented. //
// //
//////////////////////////////////////////////////////////////////////////////
#define SYSTEM_CPP
//#include <crtdbg.h>
//#define TRACE_SYSTEM
#include "mednafen/lynx/system.h"
#include "mednafen/general.h"
#include "mednafen/mempatcher.h"
CSystem::CSystem(const uint8 *filememory, int32 filesize)
:mCart(NULL),
mRom(NULL),
mMemMap(NULL),
mRam(NULL),
mCpu(NULL),
mMikie(NULL),
mSusie(NULL)
{
mFileType=HANDY_FILETYPE_LNX;
if(filesize < 11)
{
/* Lynx ROM image is too short. */
return;
}
char clip[11];
memcpy(clip,filememory,11);
clip[4]=0;
clip[10]=0;
if(!strcmp(&clip[6],"BS93")) mFileType=HANDY_FILETYPE_HOMEBREW;
else if(!strcmp(&clip[0],"LYNX")) mFileType=HANDY_FILETYPE_LNX;
else
{
/* File format is unknown to module. */
return;
}
MDFNMP_Init(65536, 1);
// Create the system objects that we'll use
// Attempt to load the cartridge errors caught above here...
mRom = new CRom(MDFN_MakeFName(MDFNMKF_FIRMWARE, 0, "lynxboot.img").c_str());
// An exception from this will be caught by the level above
switch(mFileType)
{
case HANDY_FILETYPE_LNX:
mCart = new CCart(filememory,filesize);
mRam = new CRam(0,0);
break;
case HANDY_FILETYPE_HOMEBREW:
{
#if 0
static uint8 dummy_cart[CCart::HEADER_RAW_SIZE + 65536] =
{
'L', 'Y', 'N', 'X', 0x00, 0x01, 0x00, 0x00,
0x01, 0x00,
};
mCart = new CCart(dummy_cart, sizeof(dummy_cart));
#else
mCart = new CCart(NULL, 0);
#endif
mRam = new CRam(filememory,filesize);
}
break;
case HANDY_FILETYPE_SNAPSHOT:
case HANDY_FILETYPE_ILLEGAL:
default:
mCart = new CCart(0,0);
mRam = new CRam(0,0);
break;
}
// These can generate exceptions
mMikie = new CMikie(*this);
mSusie = new CSusie(*this);
// Instantiate the memory map handler
mMemMap = new CMemMap(*this);
// Now the handlers are set we can instantiate the CPU as is will use handlers on reset
mCpu = new C65C02(*this);
// Now init is complete do a reset, this will cause many things to be reset twice
// but what the hell, who cares, I don't.....
Reset();
}
CSystem::~CSystem()
{
// Cleanup all our objects
if(mCart!=NULL) delete mCart;
if(mRom!=NULL) delete mRom;
if(mRam!=NULL) delete mRam;
if(mCpu!=NULL) delete mCpu;
if(mMikie!=NULL) delete mMikie;
if(mSusie!=NULL) delete mSusie;
if(mMemMap!=NULL) delete mMemMap;
}
void CSystem::Reset(void)
{
gSystemCycleCount=0;
gNextTimerEvent=0;
gCPUBootAddress=0;
gSystemIRQ=FALSE;
gSystemNMI=FALSE;
gSystemCPUSleep=FALSE;
gSystemHalt=FALSE;
gSuzieDoneTime = 0;
mMemMap->Reset();
mCart->Reset();
mRom->Reset();
mRam->Reset();
mMikie->Reset();
mSusie->Reset();
mCpu->Reset();
// Homebrew hashup
if(mFileType==HANDY_FILETYPE_HOMEBREW)
{
mMikie->PresetForHomebrew();
C6502_REGS regs;
mCpu->GetRegs(regs);
regs.PC=(uint16)gCPUBootAddress;
mCpu->SetRegs(regs);
}
}
// Somewhat of a hack to make sure undrawn lines are black.
bool LynxLineDrawn[256];
static CSystem *lynxie = NULL;
extern MDFNGI EmulatedLynx;
static bool TestMagic(const char *name, MDFNFILE *fp)
{
return(CCart::TestMagic(fp->data, fp->size));
}
static int Load(const char *name, MDFNFILE *fp)
{
lynxie = new CSystem(GET_FDATA_PTR(fp), GET_FSIZE_PTR(fp));
int rot = lynxie->CartGetRotate();
if(rot == CART_ROTATE_LEFT) MDFNGameInfo->rotated = MDFN_ROTATE270;
else if(rot == CART_ROTATE_RIGHT) MDFNGameInfo->rotated = MDFN_ROTATE90;
gAudioEnabled = 1;
MDFN_printf(_("ROM: %dKiB\n"), (lynxie->mCart->InfoROMSize + 1023) / 1024);
MDFN_printf(_("ROM CRC32: 0x%08x\n"), lynxie->mCart->CRC32());
MDFNGameInfo->fps = (uint32)(59.8 * 65536 * 256);
if(MDFN_GetSettingB("lynx.lowpass"))
{
lynxie->mMikie->miksynth.treble_eq(-35);
}
else
{
lynxie->mMikie->miksynth.treble_eq(0);
}
return(1);
}
static void CloseGame(void)
{
if(lynxie)
{
delete lynxie;
lynxie = NULL;
}
}
static uint8 *chee;
static void Emulate(EmulateSpecStruct *espec)
{
espec->DisplayRect.x = 0;
espec->DisplayRect.y = 0;
espec->DisplayRect.w = 160;
espec->DisplayRect.h = 102;
if(espec->VideoFormatChanged)
lynxie->DisplaySetAttributes(espec->surface->format); // FIXME, pitch
if(espec->SoundFormatChanged)
{
lynxie->mMikie->mikbuf.set_sample_rate(espec->SoundRate ? espec->SoundRate : 44100, 60);
lynxie->mMikie->mikbuf.clock_rate((long int)(16000000 / 4));
lynxie->mMikie->mikbuf.bass_freq(60);
lynxie->mMikie->miksynth.volume(0.50);
}
uint16 butt_data = chee[0] | (chee[1] << 8);
lynxie->SetButtonData(butt_data);
MDFNMP_ApplyPeriodicCheats();
memset(LynxLineDrawn, 0, sizeof(LynxLineDrawn[0]) * 102);
lynxie->mMikie->mpSkipFrame = espec->skip;
lynxie->mMikie->mpDisplayCurrent = espec->surface;
lynxie->mMikie->mpDisplayCurrentLine = 0;
lynxie->mMikie->startTS = gSystemCycleCount;
while(lynxie->mMikie->mpDisplayCurrent && (gSystemCycleCount - lynxie->mMikie->startTS) < 700000)
{
lynxie->Update();
// printf("%d ", gSystemCycleCount - lynxie->mMikie->startTS);
}
{
// FIXME, we should integrate this into mikie.*
uint32 color_black = espec->surface->MakeColor(30, 30, 30);
for(int y = 0; y < 102; y++)
{
if(espec->surface->format.bpp == 16)
{
uint16 *row = espec->surface->pixels16 + y * espec->surface->pitchinpix;
if(!LynxLineDrawn[y])
{
for(int x = 0; x < 160; x++)
row[x] = color_black;
}
}
else
{
uint32 *row = espec->surface->pixels + y * espec->surface->pitchinpix;
if(!LynxLineDrawn[y])
{
for(int x = 0; x < 160; x++)
row[x] = color_black;
}
}
}
}
espec->MasterCycles = gSystemCycleCount - lynxie->mMikie->startTS;
if(espec->SoundBuf)
{
lynxie->mMikie->mikbuf.end_frame((gSystemCycleCount - lynxie->mMikie->startTS) >> 2);
espec->SoundBufSize = lynxie->mMikie->mikbuf.read_samples(espec->SoundBuf, espec->SoundBufMaxSize) / 2; // divide by nr audio chn
}
else
espec->SoundBufSize = 0;
}
static void SetInput(int port, const char *type, void *ptr)
{
chee = (uint8 *)ptr;
}
int StateAction(StateMem *sm, int load, int data_only)
{
SFORMAT SystemRegs[] =
{
SFVAR(gSuzieDoneTime),
SFVAR(gSystemCycleCount),
SFVAR(gNextTimerEvent),
SFVAR(gCPUBootAddress),
SFVAR(gSystemIRQ),
SFVAR(gSystemNMI),
SFVAR(gSystemCPUSleep),
SFVAR(gSystemHalt),
SFARRAYN(lynxie->GetRamPointer(), RAM_SIZE, "RAM"),
SFEND
};
std::vector <SSDescriptor> love;
love.push_back(SSDescriptor(SystemRegs, "SYST"));
MDFNSS_StateAction(sm, load, data_only, love);
if(!lynxie->mSusie->StateAction(sm, load, data_only))
return(0);
if(!lynxie->mMemMap->StateAction(sm, load, data_only))
return(0);
if(!lynxie->mCart->StateAction(sm, load, data_only))
return(0);
if(!lynxie->mMikie->StateAction(sm, load, data_only))
return(0);
if(!lynxie->mCpu->StateAction(sm, load, data_only))
return(0);
return(1);
}
static void SetLayerEnableMask(uint64 mask)
{
}
static void DoSimpleCommand(int cmd)
{
switch(cmd)
{
case MDFN_MSC_POWER:
case MDFN_MSC_RESET: lynxie->Reset(); break;
}
}
static MDFNSetting LynxSettings[] =
{
{ "lynx.rotateinput", MDFNSF_NOFLAGS, gettext_noop("Virtually rotate D-pad along with screen."), NULL, MDFNST_BOOL, "1" },
{ "lynx.lowpass", MDFNSF_CAT_SOUND, gettext_noop("Enable sound output lowpass filter."), NULL, MDFNST_BOOL, "1" },
{ NULL }
};
static const InputDeviceInputInfoStruct IDII[] =
{
{ "a", "A (outer)", 8, IDIT_BUTTON_CAN_RAPID, NULL },
{ "b", "B (inner)", 7, IDIT_BUTTON_CAN_RAPID, NULL },
{ "option_2", "Option 2 (lower)", 5, IDIT_BUTTON_CAN_RAPID, NULL },
{ "option_1", "Option 1 (upper)", 4, IDIT_BUTTON_CAN_RAPID, NULL },
{ "left", "LEFT ←", /*VIRTB_DPAD0_L,*/ 2, IDIT_BUTTON, "right", { "up", "right", "down" } },
{ "right", "RIGHT →", /*VIRTB_DPAD0_R,*/ 3, IDIT_BUTTON, "left", { "down", "left", "up" } },
{ "up", "UP ↑", /*VIRTB_DPAD0_U,*/ 0, IDIT_BUTTON, "down", { "right", "down", "left" } },
{ "down", "DOWN ↓", /*VIRTB_DPAD0_D,*/ 1, IDIT_BUTTON, "up", { "left", "up", "right" } },
{ "pause", "PAUSE", 6, IDIT_BUTTON, NULL },
};
static InputDeviceInfoStruct InputDeviceInfo[] =
{
{
"gamepad",
"Gamepad",
NULL,
NULL,
sizeof(IDII) / sizeof(InputDeviceInputInfoStruct),
IDII,
}
};
static const InputPortInfoStruct PortInfo[] =
{
{ "builtin", "Built-In", sizeof(InputDeviceInfo) / sizeof(InputDeviceInfoStruct), InputDeviceInfo, 0 }
};
static InputInfoStruct InputInfo =
{
sizeof(PortInfo) / sizeof(InputPortInfoStruct),
PortInfo
};
static const FileExtensionSpecStruct KnownExtensions[] =
{
{ ".lnx", gettext_noop("Atari Lynx ROM Image") },
{ NULL, NULL }
};
MDFNGI EmulatedLynx =
{
LynxSettings,
MDFN_MASTERCLOCK_FIXED(16000000),
0,
false, // Multires possible?
160, // lcm_width
102, // lcm_height
NULL, // Dummy
160, // Nominal width
102, // Nominal height
160, // Framebuffer width
102, // Framebuffer height
2, // Number of output sound channels
};
#ifdef NEED_DEINTERLACER
static bool PrevInterlaced;
static Deinterlacer deint;
@ -145,7 +602,7 @@ void retro_init(void)
void retro_reset(void)
{
game->DoSimpleCommand(MDFN_MSC_RESET);
DoSimpleCommand(MDFN_MSC_RESET);
}
bool retro_load_game_special(unsigned, const struct retro_game_info *, size_t)
@ -175,12 +632,10 @@ static uint8_t input_buf[MAX_PLAYERS][2] = {0};
static void hookup_ports(bool force)
{
MDFNGI *currgame = game;
if (initial_ports_hookup && !force)
return;
currgame->SetInput(0, "gamepad", &input_buf);
SetInput(0, "gamepad", &input_buf);
initial_ports_hookup = true;
}
@ -240,7 +695,6 @@ void retro_unload_game()
// See mednafen/psx/input/gamepad.cpp
static void update_input(void)
{
MDFNGI *currgame = (MDFNGI*)game;
static unsigned map[] = {
RETRO_DEVICE_ID_JOYPAD_A,
RETRO_DEVICE_ID_JOYPAD_B,
@ -270,8 +724,6 @@ static uint64_t video_frames, audio_frames;
void retro_run()
{
MDFNGI *curgame = game;
input_poll_cb();
update_input();
@ -305,7 +757,7 @@ void retro_run()
last_sound_rate = spec.SoundRate;
}
curgame->Emulate(&spec);
Emulate(&spec);
#ifdef NEED_DEINTERLACER
if (spec.InterlaceOn)
@ -324,7 +776,7 @@ void retro_run()
PrevInterlaced = false;
#endif
int16 *const SoundBuf = spec.SoundBuf + spec.SoundBufSizeALMS * curgame->soundchan;
int16 *const SoundBuf = spec.SoundBuf + spec.SoundBufSizeALMS * 2;
int32 SoundBufSize = spec.SoundBufSize - spec.SoundBufSizeALMS;
const int32 SoundBufMaxSize = spec.SoundBufMaxSize - spec.SoundBufSizeALMS;
@ -399,10 +851,6 @@ unsigned retro_api_version(void)
void retro_set_controller_port_device(unsigned in_port, unsigned device)
{
MDFNGI *currgame = (MDFNGI*)game;
if (!currgame)
return;
}
void retro_set_environment(retro_environment_t cb)
@ -440,24 +888,13 @@ static size_t serialize_size;
size_t retro_serialize_size(void)
{
MDFNGI *curgame = (MDFNGI*)game;
//if (serialize_size)
// return serialize_size;
if (!curgame->StateAction)
{
if (log_cb)
log_cb(RETRO_LOG_WARN, "[mednafen]: Module %s doesn't support save states.\n", curgame->shortname);
return 0;
}
StateMem st;
memset(&st, 0, sizeof(st));
if (!MDFNSS_SaveSM(&st, 0, 0, NULL, NULL, NULL))
{
if (log_cb)
log_cb(RETRO_LOG_WARN, "[mednafen]: Module %s doesn't support save states.\n", curgame->shortname);
log_cb(RETRO_LOG_WARN, "[mednafen]: Module lynx doesn't support save states.\n");
return 0;
}
@ -567,3 +1004,199 @@ void MDFND_PrintError(const char* err)
if (log_cb)
log_cb(RETRO_LOG_ERROR, "%s\n", err);
}
extern MDFNGI EmulatedLynx;
MDFNGI *MDFNGameInfo = &EmulatedLynx;
/* forward declarations */
extern void MDFND_DispMessage(unsigned char *str);
void MDFN_DispMessage(const char *format, ...)
{
va_list ap;
va_start(ap,format);
char *msg = new char[4096];
vsnprintf(msg, 4096, format,ap);
va_end(ap);
MDFND_DispMessage((UTF8*)msg);
}
void MDFN_ResetMessages(void)
{
MDFND_DispMessage(NULL);
}
MDFNGI *MDFNI_LoadGame(const char *force_module, const char *name)
{
std::vector<FileExtensionSpecStruct> valid_iae;
MDFNGameInfo = &EmulatedLynx;
MDFNFILE *GameFile = NULL;
MDFN_printf(_("Loading %s...\n"),name);
MDFN_indent(1);
// Construct a NULL-delimited list of known file extensions for MDFN_fopen()
const FileExtensionSpecStruct *curexts = KnownExtensions;
while(curexts->extension && curexts->description)
{
valid_iae.push_back(*curexts);
curexts++;
}
GameFile = file_open(name);
if(!GameFile)
goto error;
MDFN_printf(_("Using module: lynx\n\n"));
MDFN_indent(1);
//
// Load per-game settings
//
// Maybe we should make a "pgcfg" subdir, and automatically load all files in it?
// End load per-game settings
//
if(Load(name, GameFile) <= 0)
goto error;
MDFN_LoadGameCheats(NULL);
MDFNMP_InstallReadPatches();
MDFN_ResetMessages(); // Save state, status messages, etc.
MDFN_indent(-2);
return(MDFNGameInfo);
error:
if (GameFile)
file_close(GameFile);
MDFN_indent(-2);
MDFNGameInfo = NULL;
return NULL;
}
void MDFNI_CloseGame(void)
{
if(!MDFNGameInfo)
return;
MDFN_FlushGameCheats(0);
CloseGame();
MDFNMP_Kill();
MDFNGameInfo = NULL;
}
bool MDFNI_InitializeModule(void)
{
return(1);
}
int MDFNI_Initialize(const char *basedir)
{
return(1);
}
static int curindent = 0;
void MDFN_indent(int indent)
{
curindent += indent;
}
static uint8 lastchar = 0;
void MDFN_printf(const char *format, ...)
{
char *format_temp;
char *temp;
unsigned int x, newlen;
va_list ap;
va_start(ap,format);
// First, determine how large our format_temp buffer needs to be.
uint8 lastchar_backup = lastchar; // Save lastchar!
for(newlen=x=0;x<strlen(format);x++)
{
if(lastchar == '\n' && format[x] != '\n')
{
int y;
for(y=0;y<curindent;y++)
newlen++;
}
newlen++;
lastchar = format[x];
}
format_temp = (char *)malloc(newlen + 1); // Length + NULL character, duh
// Now, construct our format_temp string
lastchar = lastchar_backup; // Restore lastchar
for(newlen=x=0;x<strlen(format);x++)
{
if(lastchar == '\n' && format[x] != '\n')
{
int y;
for(y=0;y<curindent;y++)
format_temp[newlen++] = ' ';
}
format_temp[newlen++] = format[x];
lastchar = format[x];
}
format_temp[newlen] = 0;
temp = new char[4096];
vsnprintf(temp, 4096, format_temp, ap);
free(format_temp);
MDFND_Message(temp);
free(temp);
va_end(ap);
}
void MDFN_PrintError(const char *format, ...)
{
char *temp;
va_list ap;
va_start(ap, format);
temp = new char[4096];
vsnprintf(temp, 4096, format, ap);
MDFND_PrintError(temp);
free(temp);
va_end(ap);
}
void MDFN_DebugPrintReal(const char *file, const int line, const char *format, ...)
{
char *temp;
va_list ap;
va_start(ap, format);
temp = new char[4096];
vsnprintf(temp, 4096, format, ap);
fprintf(stderr, "%s:%d %s\n", file, line, temp);
free(temp);
va_end(ap);
}

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@ -1,41 +0,0 @@
/* Mednafen - Multi-system Emulator
*
* 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
*/
#include <stdarg.h>
#include <string.h>
const char * GetFNComponent(const char *str)
{
const char *tp1;
#ifdef _WIN32
tp1 = ((char *)strrchr(str,'\\'));
const char *tp3;
tp3 = ((char *)strrchr(str,'/'));
if (tp1<tp3)
tp1 = tp3;
#else
tp1 = ((char *)strrchr(str,'/'));
#endif
if (tp1)
return (tp1+1);
return (str);
}

View File

@ -24,14 +24,4 @@ typedef enum
std::string MDFN_MakeFName(MakeFName_Type type, int id1, const char *cd1);
#ifdef __cplusplus
extern "C" {
#endif
const char * GetFNComponent(const char *str);
#ifdef __cplusplus
}
#endif
#endif

View File

@ -276,70 +276,13 @@ typedef enum
class CDIF;
#define MDFN_MASTERCLOCK_FIXED(n) ((int64)((double)(n) * (1LL << 32)))
typedef struct
{
/* Private functions to Mednafen. Do not call directly
from the driver code, or else bad things shall happen. Maybe. Probably not, but don't
do it(yet)!
*/
// Short system name, lowercase a-z, 0-9, and _ are the only allowable characters!
const char *shortname;
// Full system name. Preferably English letters, but can be UTF8
const char *fullname;
// Pointer to an array of FileExtensionSpecStruct, with the last entry being { NULL, NULL } to terminate the list.
// This list is used to make best-guess choices, when calling the TestMagic*() functions would be unreasonable, such
// as when scanning a ZIP archive for a file to load. The list may also be used in the future for GUI file open windows.
const FileExtensionSpecStruct *FileExtensions;
ModPrio ModulePriority;
void *Debugger;
InputInfoStruct *InputInfo;
// Returns 1 on successful load, 0 on fatal error(deprecated: -1 on unrecognized format)
int (*Load)(const char *name, MDFNFILE *fp);
// Return TRUE if the file is a recognized type, FALSE if not.
bool (*TestMagic)(const char *name, MDFNFILE *fp);
//
// (*CDInterfaces).size() is guaranteed to be >= 1.
int (*LoadCD)(std::vector<CDIF *> *CDInterfaces);
bool (*TestMagicCD)(std::vector<CDIF *> *CDInterfaces);
void (*CloseGame)(void);
void (*SetLayerEnableMask)(uint64 mask); // Video
const char *LayerNames;
void (*SetChanEnableMask)(uint64 mask); // Audio(TODO, placeholder)
const char *ChanNames;
void (*InstallReadPatch)(uint32 address);
void (*RemoveReadPatches)(void);
uint8 (*MemRead)(uint32 addr);
#ifdef WANT_NEW_API
CheatFormatInfoStruct *CheatFormatInfo;
#endif
bool SaveStateAltersState; // true for bsnes and some libco-style emulators, false otherwise.
// Main save state routine, called by the save state code in state.cpp.
// When saving, load is set to 0. When loading, load is set to the version field of the save state being loaded.
// data_only is true when the save state data is temporary, such as being saved into memory for state rewinding.
int (*StateAction)(StateMem *sm, int load, int data_only);
void (*Emulate)(EmulateSpecStruct *espec);
void (*SetInput)(int port, const char *type, void *ptr);
void (*DoSimpleCommand)(int cmd);
const MDFNSetting *Settings;
// Time base for EmulateSpecStruct::MasterCycles
#define MDFN_MASTERCLOCK_FIXED(n) ((int64)((double)(n) * (1LL << 32)))
int64 MasterClock;
uint32 fps; // frames per second * 65536 * 256, truncated
@ -374,8 +317,6 @@ typedef struct
int rotated;
uint8 *name; /* Game name, UTF8 encoding */
int soundrate; /* For Ogg Vorbis expansion sound wacky support. 0 for default. */
VideoSystems VideoSystem;
@ -390,4 +331,7 @@ typedef struct
double mouse_sensitivity;
} MDFNGI;
int StateAction(StateMem *sm, int load, int data_only);
#endif

View File

@ -1,478 +0,0 @@
//
// Copyright (c) 2004 K. Wilkins
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from
// the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
//////////////////////////////////////////////////////////////////////////////
// Handy - An Atari Lynx Emulator //
// Copyright (c) 1996,1997 //
// K. Wilkins //
//////////////////////////////////////////////////////////////////////////////
// System object class //
//////////////////////////////////////////////////////////////////////////////
// //
// This class provides the glue to bind of of the emulation objects //
// together via peek/poke handlers and pass thru interfaces to lower //
// objects, all control of the emulator is done via this class. Update() //
// does most of the work and each call emulates one CPU instruction and //
// updates all of the relevant hardware if required. It must be remembered //
// that if that instruction involves setting SPRGO then, it will cause a //
// sprite painting operation and then a corresponding update of all of the //
// hardware which will usually involve recursive calls to Update, see //
// Mikey SPRGO code for more details. //
// //
// K. Wilkins //
// August 1997 //
// //
//////////////////////////////////////////////////////////////////////////////
// Revision History: //
// ----------------- //
// //
// 01Aug1997 KW Document header added & class documented. //
// //
//////////////////////////////////////////////////////////////////////////////
#define SYSTEM_CPP
//#include <crtdbg.h>
//#define TRACE_SYSTEM
#include "system.h"
#include "../general.h"
#include "../mempatcher.h"
CSystem::CSystem(const uint8 *filememory, int32 filesize)
:mCart(NULL),
mRom(NULL),
mMemMap(NULL),
mRam(NULL),
mCpu(NULL),
mMikie(NULL),
mSusie(NULL)
{
mFileType=HANDY_FILETYPE_LNX;
if(filesize < 11)
{
/* Lynx ROM image is too short. */
return;
}
char clip[11];
memcpy(clip,filememory,11);
clip[4]=0;
clip[10]=0;
if(!strcmp(&clip[6],"BS93")) mFileType=HANDY_FILETYPE_HOMEBREW;
else if(!strcmp(&clip[0],"LYNX")) mFileType=HANDY_FILETYPE_LNX;
else
{
/* File format is unknown to module. */
return;
}
MDFNMP_Init(65536, 1);
// Create the system objects that we'll use
// Attempt to load the cartridge errors caught above here...
mRom = new CRom(MDFN_MakeFName(MDFNMKF_FIRMWARE, 0, "lynxboot.img").c_str());
// An exception from this will be caught by the level above
switch(mFileType)
{
case HANDY_FILETYPE_LNX:
mCart = new CCart(filememory,filesize);
mRam = new CRam(0,0);
break;
case HANDY_FILETYPE_HOMEBREW:
{
#if 0
static uint8 dummy_cart[CCart::HEADER_RAW_SIZE + 65536] =
{
'L', 'Y', 'N', 'X', 0x00, 0x01, 0x00, 0x00,
0x01, 0x00,
};
mCart = new CCart(dummy_cart, sizeof(dummy_cart));
#else
mCart = new CCart(NULL, 0);
#endif
mRam = new CRam(filememory,filesize);
}
break;
case HANDY_FILETYPE_SNAPSHOT:
case HANDY_FILETYPE_ILLEGAL:
default:
mCart = new CCart(0,0);
mRam = new CRam(0,0);
break;
}
// These can generate exceptions
mMikie = new CMikie(*this);
mSusie = new CSusie(*this);
// Instantiate the memory map handler
mMemMap = new CMemMap(*this);
// Now the handlers are set we can instantiate the CPU as is will use handlers on reset
mCpu = new C65C02(*this);
// Now init is complete do a reset, this will cause many things to be reset twice
// but what the hell, who cares, I don't.....
Reset();
}
CSystem::~CSystem()
{
// Cleanup all our objects
if(mCart!=NULL) delete mCart;
if(mRom!=NULL) delete mRom;
if(mRam!=NULL) delete mRam;
if(mCpu!=NULL) delete mCpu;
if(mMikie!=NULL) delete mMikie;
if(mSusie!=NULL) delete mSusie;
if(mMemMap!=NULL) delete mMemMap;
}
void CSystem::Reset(void)
{
gSystemCycleCount=0;
gNextTimerEvent=0;
gCPUBootAddress=0;
gSystemIRQ=FALSE;
gSystemNMI=FALSE;
gSystemCPUSleep=FALSE;
gSystemHalt=FALSE;
gSuzieDoneTime = 0;
mMemMap->Reset();
mCart->Reset();
mRom->Reset();
mRam->Reset();
mMikie->Reset();
mSusie->Reset();
mCpu->Reset();
// Homebrew hashup
if(mFileType==HANDY_FILETYPE_HOMEBREW)
{
mMikie->PresetForHomebrew();
C6502_REGS regs;
mCpu->GetRegs(regs);
regs.PC=(uint16)gCPUBootAddress;
mCpu->SetRegs(regs);
}
}
// Somewhat of a hack to make sure undrawn lines are black.
bool LynxLineDrawn[256];
static CSystem *lynxie = NULL;
extern MDFNGI EmulatedLynx;
static bool TestMagic(const char *name, MDFNFILE *fp)
{
return(CCart::TestMagic(fp->data, fp->size));
}
static int Load(const char *name, MDFNFILE *fp)
{
lynxie = new CSystem(GET_FDATA_PTR(fp), GET_FSIZE_PTR(fp));
int rot = lynxie->CartGetRotate();
if(rot == CART_ROTATE_LEFT) MDFNGameInfo->rotated = MDFN_ROTATE270;
else if(rot == CART_ROTATE_RIGHT) MDFNGameInfo->rotated = MDFN_ROTATE90;
gAudioEnabled = 1;
MDFN_printf(_("ROM: %dKiB\n"), (lynxie->mCart->InfoROMSize + 1023) / 1024);
MDFN_printf(_("ROM CRC32: 0x%08x\n"), lynxie->mCart->CRC32());
MDFNGameInfo->fps = (uint32)(59.8 * 65536 * 256);
if(MDFN_GetSettingB("lynx.lowpass"))
{
lynxie->mMikie->miksynth.treble_eq(-35);
}
else
{
lynxie->mMikie->miksynth.treble_eq(0);
}
return(1);
}
static void CloseGame(void)
{
if(lynxie)
{
delete lynxie;
lynxie = NULL;
}
}
static uint8 *chee;
static void Emulate(EmulateSpecStruct *espec)
{
espec->DisplayRect.x = 0;
espec->DisplayRect.y = 0;
espec->DisplayRect.w = 160;
espec->DisplayRect.h = 102;
if(espec->VideoFormatChanged)
lynxie->DisplaySetAttributes(espec->surface->format); // FIXME, pitch
if(espec->SoundFormatChanged)
{
lynxie->mMikie->mikbuf.set_sample_rate(espec->SoundRate ? espec->SoundRate : 44100, 60);
lynxie->mMikie->mikbuf.clock_rate((long int)(16000000 / 4));
lynxie->mMikie->mikbuf.bass_freq(60);
lynxie->mMikie->miksynth.volume(0.50);
}
uint16 butt_data = chee[0] | (chee[1] << 8);
lynxie->SetButtonData(butt_data);
MDFNMP_ApplyPeriodicCheats();
memset(LynxLineDrawn, 0, sizeof(LynxLineDrawn[0]) * 102);
lynxie->mMikie->mpSkipFrame = espec->skip;
lynxie->mMikie->mpDisplayCurrent = espec->surface;
lynxie->mMikie->mpDisplayCurrentLine = 0;
lynxie->mMikie->startTS = gSystemCycleCount;
while(lynxie->mMikie->mpDisplayCurrent && (gSystemCycleCount - lynxie->mMikie->startTS) < 700000)
{
lynxie->Update();
// printf("%d ", gSystemCycleCount - lynxie->mMikie->startTS);
}
{
// FIXME, we should integrate this into mikie.*
uint32 color_black = espec->surface->MakeColor(30, 30, 30);
for(int y = 0; y < 102; y++)
{
if(espec->surface->format.bpp == 16)
{
uint16 *row = espec->surface->pixels16 + y * espec->surface->pitchinpix;
if(!LynxLineDrawn[y])
{
for(int x = 0; x < 160; x++)
row[x] = color_black;
}
}
else
{
uint32 *row = espec->surface->pixels + y * espec->surface->pitchinpix;
if(!LynxLineDrawn[y])
{
for(int x = 0; x < 160; x++)
row[x] = color_black;
}
}
}
}
espec->MasterCycles = gSystemCycleCount - lynxie->mMikie->startTS;
if(espec->SoundBuf)
{
lynxie->mMikie->mikbuf.end_frame((gSystemCycleCount - lynxie->mMikie->startTS) >> 2);
espec->SoundBufSize = lynxie->mMikie->mikbuf.read_samples(espec->SoundBuf, espec->SoundBufMaxSize) / 2; // divide by nr audio chn
}
else
espec->SoundBufSize = 0;
}
static void SetInput(int port, const char *type, void *ptr)
{
chee = (uint8 *)ptr;
}
static int StateAction(StateMem *sm, int load, int data_only)
{
SFORMAT SystemRegs[] =
{
SFVAR(gSuzieDoneTime),
SFVAR(gSystemCycleCount),
SFVAR(gNextTimerEvent),
SFVAR(gCPUBootAddress),
SFVAR(gSystemIRQ),
SFVAR(gSystemNMI),
SFVAR(gSystemCPUSleep),
SFVAR(gSystemHalt),
SFARRAYN(lynxie->GetRamPointer(), RAM_SIZE, "RAM"),
SFEND
};
std::vector <SSDescriptor> love;
love.push_back(SSDescriptor(SystemRegs, "SYST"));
MDFNSS_StateAction(sm, load, data_only, love);
if(!lynxie->mSusie->StateAction(sm, load, data_only))
return(0);
if(!lynxie->mMemMap->StateAction(sm, load, data_only))
return(0);
if(!lynxie->mCart->StateAction(sm, load, data_only))
return(0);
if(!lynxie->mMikie->StateAction(sm, load, data_only))
return(0);
if(!lynxie->mCpu->StateAction(sm, load, data_only))
return(0);
return(1);
}
static void SetLayerEnableMask(uint64 mask)
{
}
static void DoSimpleCommand(int cmd)
{
switch(cmd)
{
case MDFN_MSC_POWER:
case MDFN_MSC_RESET: lynxie->Reset(); break;
}
}
static MDFNSetting LynxSettings[] =
{
{ "lynx.rotateinput", MDFNSF_NOFLAGS, gettext_noop("Virtually rotate D-pad along with screen."), NULL, MDFNST_BOOL, "1" },
{ "lynx.lowpass", MDFNSF_CAT_SOUND, gettext_noop("Enable sound output lowpass filter."), NULL, MDFNST_BOOL, "1" },
{ NULL }
};
static const InputDeviceInputInfoStruct IDII[] =
{
{ "a", "A (outer)", 8, IDIT_BUTTON_CAN_RAPID, NULL },
{ "b", "B (inner)", 7, IDIT_BUTTON_CAN_RAPID, NULL },
{ "option_2", "Option 2 (lower)", 5, IDIT_BUTTON_CAN_RAPID, NULL },
{ "option_1", "Option 1 (upper)", 4, IDIT_BUTTON_CAN_RAPID, NULL },
{ "left", "LEFT ←", /*VIRTB_DPAD0_L,*/ 2, IDIT_BUTTON, "right", { "up", "right", "down" } },
{ "right", "RIGHT →", /*VIRTB_DPAD0_R,*/ 3, IDIT_BUTTON, "left", { "down", "left", "up" } },
{ "up", "UP ↑", /*VIRTB_DPAD0_U,*/ 0, IDIT_BUTTON, "down", { "right", "down", "left" } },
{ "down", "DOWN ↓", /*VIRTB_DPAD0_D,*/ 1, IDIT_BUTTON, "up", { "left", "up", "right" } },
{ "pause", "PAUSE", 6, IDIT_BUTTON, NULL },
};
static InputDeviceInfoStruct InputDeviceInfo[] =
{
{
"gamepad",
"Gamepad",
NULL,
NULL,
sizeof(IDII) / sizeof(InputDeviceInputInfoStruct),
IDII,
}
};
static const InputPortInfoStruct PortInfo[] =
{
{ "builtin", "Built-In", sizeof(InputDeviceInfo) / sizeof(InputDeviceInfoStruct), InputDeviceInfo, 0 }
};
static InputInfoStruct InputInfo =
{
sizeof(PortInfo) / sizeof(InputPortInfoStruct),
PortInfo
};
static const FileExtensionSpecStruct KnownExtensions[] =
{
{ ".lnx", gettext_noop("Atari Lynx ROM Image") },
{ NULL, NULL }
};
MDFNGI EmulatedLynx =
{
"lynx",
"Atari Lynx",
KnownExtensions,
MODPRIO_INTERNAL_HIGH,
NULL,
&InputInfo,
Load,
TestMagic,
NULL,
NULL,
CloseGame,
SetLayerEnableMask,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
false,
StateAction,
Emulate,
SetInput,
DoSimpleCommand,
LynxSettings,
MDFN_MASTERCLOCK_FIXED(16000000),
0,
false, // Multires possible?
160, // lcm_width
102, // lcm_height
NULL, // Dummy
160, // Nominal width
102, // Nominal height
160, // Framebuffer width
102, // Framebuffer height
2, // Number of output sound channels
};

View File

@ -34,219 +34,3 @@
#ifdef _MSC_VER
#include "msvc_compat.h"
#endif
extern MDFNGI EmulatedLynx;
MDFNGI *MDFNGameInfo = &EmulatedLynx;
/* forward declarations */
extern void MDFND_DispMessage(unsigned char *str);
void MDFN_DispMessage(const char *format, ...)
{
va_list ap;
va_start(ap,format);
char *msg = new char[4096];
vsnprintf(msg, 4096, format,ap);
va_end(ap);
MDFND_DispMessage((UTF8*)msg);
}
void MDFN_ResetMessages(void)
{
MDFND_DispMessage(NULL);
}
MDFNGI *MDFNI_LoadGame(const char *force_module, const char *name)
{
std::vector<FileExtensionSpecStruct> valid_iae;
MDFNGameInfo = &EmulatedLynx;
MDFNFILE *GameFile = NULL;
MDFN_printf(_("Loading %s...\n"),name);
MDFN_indent(1);
// Construct a NULL-delimited list of known file extensions for MDFN_fopen()
const FileExtensionSpecStruct *curexts = MDFNGameInfo->FileExtensions;
while(curexts->extension && curexts->description)
{
valid_iae.push_back(*curexts);
curexts++;
}
GameFile = file_open(name);
if(!GameFile)
goto error;
MDFN_printf(_("Using module: %s(%s)\n\n"), MDFNGameInfo->shortname, MDFNGameInfo->fullname);
MDFN_indent(1);
//
// Load per-game settings
//
// Maybe we should make a "pgcfg" subdir, and automatically load all files in it?
// End load per-game settings
//
if(MDFNGameInfo->Load(name, GameFile) <= 0)
goto error;
MDFN_LoadGameCheats(NULL);
MDFNMP_InstallReadPatches();
MDFN_ResetMessages(); // Save state, status messages, etc.
MDFN_indent(-2);
if(!MDFNGameInfo->name)
{
unsigned int x;
char *tmp;
MDFNGameInfo->name = (UTF8 *)strdup(GetFNComponent(name));
for(x=0;x<strlen((char *)MDFNGameInfo->name);x++)
{
if(MDFNGameInfo->name[x] == '_')
MDFNGameInfo->name[x] = ' ';
}
if((tmp = strrchr((char *)MDFNGameInfo->name, '.')))
*tmp = 0;
}
return(MDFNGameInfo);
error:
if (GameFile)
file_close(GameFile);
MDFN_indent(-2);
MDFNGameInfo = NULL;
return NULL;
}
void MDFNI_CloseGame(void)
{
if(!MDFNGameInfo)
return;
MDFN_FlushGameCheats(0);
MDFNGameInfo->CloseGame();
if(MDFNGameInfo->name)
free(MDFNGameInfo->name);
MDFNGameInfo->name = NULL;
MDFNMP_Kill();
MDFNGameInfo = NULL;
}
bool MDFNI_InitializeModule(void)
{
return(1);
}
int MDFNI_Initialize(const char *basedir)
{
return(1);
}
static int curindent = 0;
void MDFN_indent(int indent)
{
curindent += indent;
}
static uint8 lastchar = 0;
void MDFN_printf(const char *format, ...)
{
char *format_temp;
char *temp;
unsigned int x, newlen;
va_list ap;
va_start(ap,format);
// First, determine how large our format_temp buffer needs to be.
uint8 lastchar_backup = lastchar; // Save lastchar!
for(newlen=x=0;x<strlen(format);x++)
{
if(lastchar == '\n' && format[x] != '\n')
{
int y;
for(y=0;y<curindent;y++)
newlen++;
}
newlen++;
lastchar = format[x];
}
format_temp = (char *)malloc(newlen + 1); // Length + NULL character, duh
// Now, construct our format_temp string
lastchar = lastchar_backup; // Restore lastchar
for(newlen=x=0;x<strlen(format);x++)
{
if(lastchar == '\n' && format[x] != '\n')
{
int y;
for(y=0;y<curindent;y++)
format_temp[newlen++] = ' ';
}
format_temp[newlen++] = format[x];
lastchar = format[x];
}
format_temp[newlen] = 0;
temp = new char[4096];
vsnprintf(temp, 4096, format_temp, ap);
free(format_temp);
MDFND_Message(temp);
free(temp);
va_end(ap);
}
void MDFN_PrintError(const char *format, ...)
{
char *temp;
va_list ap;
va_start(ap, format);
temp = new char[4096];
vsnprintf(temp, 4096, format, ap);
MDFND_PrintError(temp);
free(temp);
va_end(ap);
}
void MDFN_DebugPrintReal(const char *file, const int line, const char *format, ...)
{
char *temp;
va_list ap;
va_start(ap, format);
temp = new char[4096];
vsnprintf(temp, 4096, format, ap);
fprintf(stderr, "%s:%d %s\n", file, line, temp);
free(temp);
va_end(ap);
}

View File

@ -142,18 +142,22 @@ void MDFNMP_InstallReadPatches(void)
std::vector<SUBCHEAT>::iterator chit;
#if 0
for(unsigned int x = 0; x < 8; x++)
for(chit = SubCheats[x].begin(); chit != SubCheats[x].end(); chit++)
{
if(MDFNGameInfo->InstallReadPatch)
MDFNGameInfo->InstallReadPatch(chit->addr);
}
#endif
}
void MDFNMP_RemoveReadPatches(void)
{
#if 0
if(MDFNGameInfo->RemoveReadPatches)
MDFNGameInfo->RemoveReadPatches();
#endif
}
/* This function doesn't allocate any memory for "name" */
@ -291,6 +295,8 @@ static bool TestConditions(const char *string)
v_value = strtoull(value, NULL, 0);
value_at_address = 0;
#if 0
for(unsigned int x = 0; x < bytelen; x++)
{
unsigned int shiftie;
@ -301,6 +307,7 @@ static bool TestConditions(const char *string)
shiftie = x * 8;
value_at_address |= MDFNGameInfo->MemRead(v_address + x) << shiftie;
}
#endif
//printf("A: %08x, V: %08llx, VA: %08llx, OP: %s\n", v_address, v_value, value_at_address, operation);
if(!strcmp(operation, ">="))

View File

@ -466,7 +466,7 @@ int MDFNSS_SaveSM(void *st_p, int, int, const void*, const void*, const void*)
MDFN_en32lsb(header + 28, neoheight);
smem_write(st, header, 32);
if(!MDFNGameInfo->StateAction(st, 0, 0))
if(!StateAction(st, 0, 0))
return(0);
uint32_t sizy = st->loc;
@ -489,5 +489,5 @@ int MDFNSS_LoadSM(void *st_p, int, int)
stateversion = MDFN_de32lsb(header + 16);
return(MDFNGameInfo->StateAction(st, stateversion, 0));
return StateAction(st, stateversion, 0);
}