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copied!<p>Firstly, you cannot use the C/C++ Standard Library because, in a hobby OS, it doesn't exist*.</p> <p>Secondly, your C++ code seems to be in 32Bit format while your Assembly code is in 16Bit format. These cannot be linked unless both are 16 or both are 32.</p> <p>I recommend looking at the <a href="http://wiki.osdev.org/Main_Page" rel="noreferrer">OSDev Wiki</a> (user786653 posted that too)... It has many helpful resources to get you on your way to writing an Operating System.</p> <p>If you really want to start from scratch using 16Bit Assembly, and you want to be able to use 32Bit C++ code, you will have to do the following steps:</p> <ol> <li>Create a Bootloader's First Stage (A Small file that loads the rest of the bootloader.. It has to be exactly 512 Bytes...</li> <li>Create a Bootloader's Second Stage (This one sets up a GDT, enables the A20 Line, and switches to 32Bit Protected Mode.. - It can also set up a video mode, get RAM info, and pass that onto the 32Bit Kernel..).</li> <li>Create a 32Bit Kernel Stub (In C/C++.. Preferrably C). This Will create the main environment for the operating system's kernel.</li> <li>Write some C/C++ Standard Library Routines. String.h is your main priority (CString on C++). Also, a Stdio.h file would be useful (CStdio on C++)</li> <li>In the Kernel Stub's main function, call your print routine.</li> </ol> <p>(Note to do this you must have a high level of knowledge in C/C++ and at least some knowledge in Assembly)</p> <p>*If you programmed in your own library then disregard the first statement.</p> <p>Hope this helps!</p> <p>-Adrian</p>

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