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117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
#include "Iop_NamcoAcRam.h"
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#include <cstring>
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#include "zip/ZipArchiveReader.h"
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#include "zip/ZipArchiveWriter.h"
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#include "../../states/MemoryStateFile.h"
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#include "Log.h"
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using namespace Iop;
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using namespace Iop::Namco;
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#define LOG_NAME ("iop_namco_acram")
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#define STATE_EXTRAM_FILE ("iop_namco_acram/extram")
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#define FUNCTION_INIT "Init"
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#define FUNCTION_READ "Read"
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#define FUNCTION_WRITE "Write"
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CAcRam::CAcRam(uint8* iopRam)
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: m_iopRam(iopRam)
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{
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}
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std::string CAcRam::GetId() const
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{
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return "acram";
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}
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std::string CAcRam::GetFunctionName(unsigned int functionId) const
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{
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switch(functionId)
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{
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case 8:
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return FUNCTION_INIT;
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case 9:
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return FUNCTION_READ;
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case 11:
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return FUNCTION_WRITE;
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default:
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return "unknown";
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}
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}
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void CAcRam::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 8:
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{
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uint32 handlePtr = context.m_State.nGPR[CMIPS::A0].nV0;
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uint32 ptr1 = context.m_State.nGPR[CMIPS::A1].nV0;
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uint32 ptr2 = context.m_State.nGPR[CMIPS::A2].nV0;
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uint32 ptr3 = context.m_State.nGPR[CMIPS::A3].nV0;
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CLog::GetInstance().Warn(LOG_NAME, "Init(handlePtr = 0x%08X, ptr1 = 0x%08X, ptr2 = 0x%08X, ptr3 = 0x%08X);\r\n",
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handlePtr, ptr1, ptr2, ptr3);
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assert(handlePtr != 0);
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context.m_pMemoryMap->SetWord(handlePtr + 0x08, ptr1);
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context.m_pMemoryMap->SetWord(handlePtr + 0x0C, ptr2);
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context.m_pMemoryMap->SetWord(handlePtr + 0x1C, ptr3);
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context.m_State.nGPR[CMIPS::V0].nV0 = handlePtr;
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}
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break;
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case 9:
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{
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uint32 handlePtr = context.m_State.nGPR[CMIPS::A0].nV0;
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uint32 ramAddr = context.m_State.nGPR[CMIPS::A1].nV0;
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uint32 iopAddr = context.m_State.nGPR[CMIPS::A2].nV0;
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uint32 size = context.m_State.nGPR[CMIPS::A3].nV0;
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CLog::GetInstance().Warn(LOG_NAME, "Read(infoPtr = 0x%08X, ramAddr = 0x%08X, iopAddr = 0x%08X, size = %d);\r\n",
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handlePtr, ramAddr, iopAddr, size);
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Read(ramAddr, m_iopRam + iopAddr, size);
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uint32 otherResultPtr = context.m_pMemoryMap->GetWord(handlePtr + 0x0C);
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context.m_pMemoryMap->SetWord(otherResultPtr, ~0U);
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context.m_State.nGPR[CMIPS::V0].nV0 = 1; //?
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}
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break;
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case 11:
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{
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uint32 handlePtr = context.m_State.nGPR[CMIPS::A0].nV0;
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uint32 ramAddr = context.m_State.nGPR[CMIPS::A1].nV0;
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uint32 iopAddr = context.m_State.nGPR[CMIPS::A2].nV0;
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uint32 size = context.m_State.nGPR[CMIPS::A3].nV0;
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CLog::GetInstance().Warn(LOG_NAME, "Write(infoPtr = 0x%08X, dstAddr = 0x%08X, srcAddr = 0x%08X, size = %d);\r\n",
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handlePtr, ramAddr, iopAddr, size);
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Write(ramAddr, m_iopRam + iopAddr, size);
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uint32 otherResultPtr = context.m_pMemoryMap->GetWord(handlePtr + 0x0C);
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context.m_pMemoryMap->SetWord(otherResultPtr, ~0U);
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context.m_State.nGPR[CMIPS::V0].nV0 = 1; //?
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}
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break;
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default:
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CLog::GetInstance().Warn(LOG_NAME, "Unknown method invoked (0x%08X).\r\n", functionId);
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break;
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}
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}
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void CAcRam::SaveState(Framework::CZipArchiveWriter& archive) const
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{
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archive.InsertFile(std::make_unique<CMemoryStateFile>(STATE_EXTRAM_FILE, m_extRam, g_extRamSize));
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}
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void CAcRam::LoadState(Framework::CZipArchiveReader& archive)
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{
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archive.BeginReadFile(STATE_EXTRAM_FILE)->Read(m_extRam, g_extRamSize);
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}
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void CAcRam::Read(uint32 extRamAddr, uint8* buffer, uint32 size)
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{
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assert((extRamAddr + size) <= g_extRamSize);
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memcpy(buffer, m_extRam + extRamAddr, size);
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}
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void CAcRam::Write(uint32 extRamAddr, const uint8* buffer, uint32 size)
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{
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assert((extRamAddr + size) <= g_extRamSize);
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memcpy(m_extRam + extRamAddr, buffer, size);
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}
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