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91 lines
2.1 KiB
C++
91 lines
2.1 KiB
C++
#include "Iop_Heaplib.h"
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#include "Log.h"
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using namespace Iop;
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#define LOG_NAME ("iop_heaplib")
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#define HEAP_PTR 0x12121212
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#define FUNCTION_CREATEHEAP "CreateHeap"
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#define FUNCTION_ALLOCHEAPMEMORY "AllocHeapMemory"
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#define FUNCTION_FREEHEAPMEMORY "FreeHeapMemory"
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CHeaplib::CHeaplib(CSysmem& sysMem)
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: m_sysMem(sysMem)
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{
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}
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std::string CHeaplib::GetId() const
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{
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return "heaplib";
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}
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std::string CHeaplib::GetFunctionName(unsigned int functionId) const
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{
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switch(functionId)
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{
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case 4:
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return FUNCTION_CREATEHEAP;
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break;
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case 6:
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return FUNCTION_ALLOCHEAPMEMORY;
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break;
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case 7:
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return FUNCTION_FREEHEAPMEMORY;
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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 CHeaplib::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 4:
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context.m_State.nGPR[CMIPS::V0].nD0 = CreateHeap(
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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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break;
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case 6:
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context.m_State.nGPR[CMIPS::V0].nD0 = AllocHeapMemory(
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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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break;
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case 7:
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context.m_State.nGPR[CMIPS::V0].nD0 = FreeHeapMemory(
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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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break;
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default:
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CLog::GetInstance().Warn(LOG_NAME, "Unknown function called (%d).\r\n",
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functionId);
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break;
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}
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}
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int32 CHeaplib::CreateHeap(uint32 heapSize, uint32 flags)
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{
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CLog::GetInstance().Print(LOG_NAME, FUNCTION_CREATEHEAP "(heapSize = 0x%08X, flags = %d);\r\n",
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heapSize, flags);
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return HEAP_PTR;
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}
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int32 CHeaplib::AllocHeapMemory(uint32 heapPtr, uint32 size)
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{
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CLog::GetInstance().Print(LOG_NAME, FUNCTION_ALLOCHEAPMEMORY "(heapPtr = 0x%08X, size = 0x%08X);\r\n",
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heapPtr, size);
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assert(heapPtr == HEAP_PTR);
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return m_sysMem.AllocateMemory(size, 0, 0);
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}
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int32 CHeaplib::FreeHeapMemory(uint32 heapPtr, uint32 allocPtr)
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{
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CLog::GetInstance().Print(LOG_NAME, FUNCTION_FREEHEAPMEMORY "(heapPtr = 0x%08X, allocPtr = 0x%08X);\r\n",
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heapPtr, allocPtr);
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assert(heapPtr == HEAP_PTR);
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m_sysMem.FreeMemory(allocPtr);
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return 0;
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}
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