forked from KolibriOS/kolibrios
147 lines
2.6 KiB
C
147 lines
2.6 KiB
C
#pragma option OST
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#pragma option ON
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#pragma option cri-
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#pragma option -CPA
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#initallvar 0
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#jumptomain FALSE
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#startaddress 0x0000
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#code32 TRUE
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char os_name[8] = {'M','E','N','U','E','T','0','1'};
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dword os_version = 0x00000001;
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dword start_addr = #main;
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dword final_addr = #______STOP______+32;
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dword alloc_mem = 20000;
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dword x86esp_reg = 20000;
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dword I_Param = #param;
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dword I_Path = #program_path;
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char param[4096] ={0};
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char program_path[4096] = {0};
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:dword mallocSystem(dword size)
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{
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$push ebx
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$push ecx
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$mov eax, 68
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$mov ebx, 12
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$mov ecx, size
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$int 0x40
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$pop ecx
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$pop ebx
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return EAX;
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}
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:dword __offsetAllocData = 0;
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:dword __limitAllocSize = 0;
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:dword __sizeFullAllocMemory = 0;
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:dword malloc(dword size)
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{
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dword orderSize = 1;
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dword order = 0;
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dword stackAlloc = 0;
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dword stackKey = 0;
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dword result = 0;
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IF(!__offsetAllocData) __offsetAllocData = mallocSystem(4*40);
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size+=4;
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order = __offsetAllocData;
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WHILE(orderSize<size)
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{
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orderSize<<=1;
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order+=4;
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}
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__sizeFullAllocMemory += orderSize;
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IF(!DSDWORD[order])
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{
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stackAlloc = mallocSystem(4*50);
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DSDWORD[order] = stackAlloc;
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DSDWORD[stackAlloc] = stackAlloc;
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}
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ELSE stackAlloc = DSDWORD[order];
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stackKey = DSDWORD[stackAlloc];
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IF(stackKey == stackAlloc)
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{
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result = mallocSystem(orderSize);
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DSDWORD[result] = orderSize;
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return result+4;
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}
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ELSE
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{
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result = DSDWORD[stackKey];
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DSDWORD[stackAlloc] = stackKey-4;
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return result+4;
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}
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}
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:dword free(dword ptr)
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{
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dword array = 0;
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dword orderSize = 1;
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dword order = 0;
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dword stackAlloc = 0;
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dword stackKey = 0;
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dword result = 0;
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dword size = 0;
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IF(!__offsetAllocData) return 0;
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size = DSDWORD[ptr-4];
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order = __offsetAllocData;
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WHILE(orderSize!=size)
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{
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orderSize<<=1;
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order+=4;
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}
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stackAlloc = DSDWORD[order];
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DSDWORD[stackAlloc] += 4;
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stackKey = DSDWORD[stackAlloc];
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DSDWORD[stackKey] = ptr-4;
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}
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:dword realloc(dword oldMem,size)
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{
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dword newMem = 0;
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dword oldSize = 0;
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dword ptr1 = 0;
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dword ptr2 = 0;
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IF(!oldMem) RETURN malloc(size);
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newMem = malloc(size);
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oldSize = DSDWORD[oldMem-4] - 4;
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ptr1 = oldMem;
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ptr2 = newMem;
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WHILE(oldSize)
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{
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DSBYTE[ptr2] = DSBYTE[ptr1];
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ptr1++;
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ptr2++;
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oldSize--;
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}
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free(oldMem);
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RETURN newMem;
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}
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void main()
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{
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dword o1 = 0;
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dword o2 = 0;
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dword o3 = 0;
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while(1)
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{
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o1 = malloc(1000);
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o2 = malloc(10000);
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o3 = malloc(1000);
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o1 = realloc(o3,2000);
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free(o2);
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free(o1);
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free(o3);
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}
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EAX = -1;
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$int 0x40;
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}
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______STOP______: |