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- #How to create your own game system operating system drivers
- #How to create your own game system operating system software
- #How to create your own game system operating system code
#How to create your own game system operating system software
Important features of system softwareĬomputer manufacturers usually develop the system software as an integral part of the computer. Essentially, system software provides a platform for application software to be run on top of. It runs in the background, maintaining the computer's basic functions so users can run higher-level application software to perform certain tasks. System software is used to manage the computer itself. The OS manages all the other programs in a computer. The operating system is the best-known example of system software. If we think of the computer system as a layered model, the system software is the interface between the hardware and user applications. At first, it will also not do much because it will miss all the different software.System software is a type of computer program that is designed to run a computer's hardware and application programs. However, getting a small toy OS running is not too much work.
#How to create your own game system operating system drivers
It has drivers for a lot of hardware, supports different file systems, has thousands of applications which needs to be maintained, etc. For this you would need to build momentum, involve a lot more developers, and much Maintaining Ubuntu is a lot of work because it is a huge OS (compared to one-person toy OSes). Sure, it will not be an OS for the masses.
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And I believe you can even support Qt if you are a serious hobbyist developer. If you want to support just a single hardware (or virtual machine) - which means you just need one simple set of drivers - you can certainly pull your own OS. It just won't have a GUI and a whole bunch of software. You can get a small OS running in a year or so. They wrote their own bootloader, input handler (usually just keyboard), terminal output, filesystem (usually their own inventions), and some more. And they all got their own operating systems running. There were a lot of hobbyist OS developers. Back in the days when newsgroups were a thing, I subscribed to alt.os.dev. But, until you get Qt fully working, at that point for your very tiny OS 90+% would need to be written without using TempleOS is just one example of many. For a fully fledged OS maybe 90+% could be written using Qt. A lot of the higher level functionality of your OS could then fully rely on Qt. However, you can write a backend for Qt using very little of Qt (you could already use QString and QVector (QVector after providing new and delete) and such). To be precise: You cannot write an operating system just using Qt.
#How to create your own game system operating system code
Output/input handling would need to be rewritten with some low-level code outside of Qt. Output, vectors, strings could all be replaced by Qt counterparts. You need to provide your own new/delete, std::cout, std::vector, std::string, exception handling, etc.
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Note that by default C++ does not have a standard library if you write your own operating system. Typically, all the low-level stuff would be written with some small amount of assembler and the major part using C or C++. But Qt could be extended to provide this functionality itself. Usually, the OS provides functions for opening, reading and writing files, and Qt will just provide a common interface on different platforms to these functions. If you imagine Qt as part of your OS QFile could contain the file system implementation and disk driver. For example, QFile would need an implementation to access the disk. Basically, you would need a bootloader (at least some assembly on x86 - or use an existing bootloader to load your operating system), input handler, graphics driver, timers, interrupt handlers. However, the backend needs to be low-level and could not rely on Qt. So, to write an operating system using Qt would require to write a new backend. Qt is also written to support different backends. The outfacing interface of the Qt framework provides everything one would need for application development. I'd like to add that this is a very interesting question.