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# calculator
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A from-scratch operating system for a graphing calculator.
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The goal of this project is to design a functional operating system for a
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graphing calculator based on the STM32L476RG processor. This OS has been
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designed from scratch to optimize for speed and code size, targeting the
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features necessary for a graphing calculator application.
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Required packages:
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* arm-none-eabi toolchain
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* openocd
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* make
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Use ```run.sh``` to upload the final output to the processor.
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## design overview
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The core of the operating system is written entirely in C and assembly. This
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project is paired with the [interpreter project](https://code.bitgloo.com/clyne/interpreter)
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(licensed under the GPL),
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which parses script from C strings. The operating system exposes calls to the
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script parser, and then loads the text file at ```initrd/init```.
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