mirror of
https://github.com/libretro/Play-.git
synced 2024-11-30 20:21:25 +00:00
284 lines
7.5 KiB
C++
284 lines
7.5 KiB
C++
#include "Iop_Loadcore.h"
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#include "Iop_Dynamic.h"
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#include "IopBios.h"
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#include "../Log.h"
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using namespace Iop;
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#define LOG_NAME "iop_loadcore"
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#define FUNCTION_FLUSHDCACHE "FlushDcache"
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#define FUNCTION_REGISTERLIBRARYENTRIES "RegisterLibraryEntries"
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#define FUNCTION_QUERYBOOTMODE "QueryBootMode"
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#define FUNCTION_SETREBOOTTIMELIBHANDLINGMODE "SetRebootTimeLibraryHandlingMode"
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#define PATH_MAX_SIZE 252
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#define ARGS_MAX_SIZE 252
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CLoadcore::CLoadcore(CIopBios& bios, uint8* ram, CSifMan& sifMan)
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: m_bios(bios)
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, m_ram(ram)
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{
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sifMan.RegisterModule(MODULE_ID, this);
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}
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CLoadcore::~CLoadcore()
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{
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}
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std::string CLoadcore::GetId() const
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{
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return "loadcore";
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}
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std::string CLoadcore::GetFunctionName(unsigned int functionId) const
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{
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switch(functionId)
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{
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case 5:
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return FUNCTION_FLUSHDCACHE;
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break;
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case 6:
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return FUNCTION_REGISTERLIBRARYENTRIES;
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break;
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case 12:
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return FUNCTION_QUERYBOOTMODE;
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break;
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case 27:
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return FUNCTION_SETREBOOTTIMELIBHANDLINGMODE;
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break;
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default:
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return "unknown";
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break;
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}
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}
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void CLoadcore::Invoke(CMIPS& context, unsigned int functionId)
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{
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switch(functionId)
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{
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case 5:
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//FlushDCache
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break;
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case 6:
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context.m_State.nGPR[CMIPS::V0].nD0 = static_cast<int32>(RegisterLibraryEntries(
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context.m_State.nGPR[CMIPS::A0].nV0
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));
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break;
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case 12:
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context.m_State.nGPR[CMIPS::V0].nD0 = static_cast<int32>(QueryBootMode(
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context.m_State.nGPR[CMIPS::A0].nV0
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));
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break;
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case 27:
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context.m_State.nGPR[CMIPS::V0].nD0 = static_cast<int32>(SetRebootTimeLibraryHandlingMode(
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context.m_State.nGPR[CMIPS::A0].nV0,
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context.m_State.nGPR[CMIPS::A1].nV0
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));
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break;
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default:
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CLog::GetInstance().Print(LOG_NAME, "Unknown function (%d) called (PC: 0x%0.8X).\r\n",
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functionId, context.m_State.nPC);
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break;
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}
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}
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bool CLoadcore::Invoke(uint32 method, uint32* args, uint32 argsSize, uint32* ret, uint32 retSize, uint8* ram)
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{
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switch(method)
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{
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case 0x00:
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return LoadModule(args, argsSize, ret, retSize);
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break;
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case 0x01:
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LoadExecutable(args, argsSize, ret, retSize);
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break;
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case 0x06:
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LoadModuleFromMemory(args, argsSize, ret, retSize);
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return false; //Block EE till module is loaded
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break;
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case 0x07:
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return StopModule(args, argsSize, ret, retSize);
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break;
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case 0x08:
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UnloadModule(args, argsSize, ret, retSize);
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break;
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case 0x09:
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SearchModuleByName(args, argsSize, ret, retSize);
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break;
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case 0xFF:
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//This is sometimes called after binding this server with a client
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Initialize(args, argsSize, ret, retSize);
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break;
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default:
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CLog::GetInstance().Print(LOG_NAME, "Invoking unknown function %d.\r\n", method);
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break;
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}
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return true;
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}
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void CLoadcore::SetLoadExecutableHandler(const LoadExecutableHandler& loadExecutableHandler)
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{
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m_loadExecutableHandler = loadExecutableHandler;
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}
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uint32 CLoadcore::RegisterLibraryEntries(uint32 exportTablePtr)
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{
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CLog::GetInstance().Print(LOG_NAME, FUNCTION_REGISTERLIBRARYENTRIES "(exportTable = 0x%0.8X);\r\n", exportTablePtr);
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uint32* exportTable = reinterpret_cast<uint32*>(&m_ram[exportTablePtr]);
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m_bios.RegisterDynamicModule(new CDynamic(exportTable));
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return 0;
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}
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uint32 CLoadcore::QueryBootMode(uint32 param)
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{
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CLog::GetInstance().Print(LOG_NAME, FUNCTION_QUERYBOOTMODE "(param = %d);\r\n", param);
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return 0;
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}
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uint32 CLoadcore::SetRebootTimeLibraryHandlingMode(uint32 libAddr, uint32 mode)
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{
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CLog::GetInstance().Print(LOG_NAME, FUNCTION_SETREBOOTTIMELIBHANDLINGMODE "(libAddr = 0x%0.8X, mode = 0x%0.8X);\r\n",
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libAddr, mode);
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return 0;
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}
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bool CLoadcore::LoadModule(uint32* args, uint32 argsSize, uint32* ret, uint32 retSize)
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{
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char moduleName[PATH_MAX_SIZE];
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char moduleArgs[ARGS_MAX_SIZE];
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assert(argsSize == 512);
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//Sometimes called with 4, sometimes 8
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assert(retSize >= 4);
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uint32 moduleArgsSize = args[0];
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memcpy(moduleName, reinterpret_cast<const char*>(args) + 8, PATH_MAX_SIZE);
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memcpy(moduleArgs, reinterpret_cast<const char*>(args) + 8 + PATH_MAX_SIZE, ARGS_MAX_SIZE);
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//Load the module
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CLog::GetInstance().Print(LOG_NAME, "Request to load module '%s' received with %d bytes arguments payload.\r\n", moduleName, moduleArgsSize);
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auto moduleId = m_bios.LoadModule(moduleName);
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if(moduleId >= 0)
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{
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moduleId = m_bios.StartModule(moduleId, moduleName, moduleArgs, moduleArgsSize);
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}
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//This function returns something negative upon failure
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ret[0] = moduleId;
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if(moduleId >= 0)
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{
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//Block EE till the IOP has completed the operation and sends its reply to the EE
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return false;
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}
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else
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{
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//Loading module failed, reply can be sent over immediately
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return true;
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}
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}
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void CLoadcore::LoadExecutable(uint32* args, uint32 argsSize, uint32* ret, uint32 retSize)
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{
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char moduleName[PATH_MAX_SIZE];
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char sectionName[ARGS_MAX_SIZE];
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assert(argsSize == 512);
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assert(retSize >= 8);
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memcpy(moduleName, reinterpret_cast<const char*>(args) + 8, PATH_MAX_SIZE);
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memcpy(sectionName, reinterpret_cast<const char*>(args) + 8 + PATH_MAX_SIZE, ARGS_MAX_SIZE);
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CLog::GetInstance().Print(LOG_NAME, "Request to load section '%s' from executable '%s' received.\r\n", sectionName, moduleName);
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uint32 result = 0;
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//Load executable in EE memory
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if(m_loadExecutableHandler)
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{
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result = m_loadExecutableHandler(moduleName, sectionName);
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}
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//This function returns something negative upon failure
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ret[0] = result; //epc or result (if negative)
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ret[1] = 0x00000000; //gp
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}
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void CLoadcore::LoadModuleFromMemory(uint32* args, uint32 argsSize, uint32* ret, uint32 retSize)
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{
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const char* moduleArgs = reinterpret_cast<const char*>(args) + 8 + PATH_MAX_SIZE;
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uint32 moduleArgsSize = args[1];
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CLog::GetInstance().Print(LOG_NAME, "Request to load module at 0x%0.8X received with %d bytes arguments payload.\r\n", args[0], moduleArgsSize);
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auto moduleId = m_bios.LoadModule(args[0]);
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if(moduleId >= 0)
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{
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moduleId = m_bios.StartModule(moduleId, "", moduleArgs, moduleArgsSize);
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}
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ret[0] = moduleId;
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}
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bool CLoadcore::StopModule(uint32* args, uint32 argsSize, uint32* ret, uint32 retSize)
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{
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char moduleArgs[ARGS_MAX_SIZE];
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assert(argsSize == 512);
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assert(retSize >= 4);
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uint32 moduleId = args[0];
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uint32 moduleArgsSize = args[1];
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memcpy(moduleArgs, reinterpret_cast<const char*>(args) + 8 + PATH_MAX_SIZE, ARGS_MAX_SIZE);
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CLog::GetInstance().Print(LOG_NAME, "StopModule(moduleId = %d, args, argsSize = 0x%0.8X);\r\n",
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moduleId, moduleArgsSize);
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auto result = m_bios.StopModule(moduleId);
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ret[0] = result;
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if(result >= 0)
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{
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return false;
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}
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else
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{
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return true;
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}
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}
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void CLoadcore::UnloadModule(uint32* args, uint32 argsSize, uint32* ret, uint32 retSize)
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{
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assert(argsSize == 4);
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assert(retSize >= 4);
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uint32 moduleId = args[0];
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CLog::GetInstance().Print(LOG_NAME, "UnloadModule(moduleId = %d);\r\n", moduleId);
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auto result = m_bios.UnloadModule(moduleId);
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ret[0] = result;
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}
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void CLoadcore::SearchModuleByName(uint32* args, uint32 argsSize, uint32* ret, uint32 retSize)
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{
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assert(argsSize >= 0x200);
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assert(retSize >= 4);
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const char* moduleName = reinterpret_cast<const char*>(args) + 8;
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CLog::GetInstance().Print(LOG_NAME, "SearchModuleByName('%s');\r\n", moduleName);
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auto moduleId = m_bios.SearchModuleByName(moduleName);
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ret[0] = moduleId;
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}
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void CLoadcore::Initialize(uint32* args, uint32 argsSize, uint32* ret, uint32 retSize)
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{
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assert(argsSize == 0);
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assert(retSize == 4);
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ret[0] = 0x2E2E2E2E;
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}
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