void exp2()

in src/CodeSetSize/CodeSetSize.cpp [100:124]

• 21 lines of code
• 3 McCabe index (conditional complexity)

void exp2(const int memSize)
{
	const auto _memSize = memSize / 2;
	auto buf = (char*)VirtualAlloc(nullptr, _memSize, MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE);
	if (!buf)
	{
		cerr << "Argh 0\n";
		return;
	}

	ErrorHistogram e;
	fillBuffer<uint8_t>(buf, _memSize, 0x90);
	// write "jmp rax" to the end of the buffer
	buf[_memSize - 2] = 255;
	buf[_memSize - 1] = 224;

	_mm_mfence();

	for (int i = 0; i < nRetries; i++)
	{
		e[exec2Trans(buf)]++;
		Sleep(0);
	}
	cout << "Executed 2 x " << _memSize << " nops. Errors:\n" << e << "\n";
}