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README.md

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+# rainbowboot
+
+This is a x86 boot sector demo that prints a rolling rainbow pattern to screen.
+
+Licensed under 
+
+## How to use
+
+Make sure you have NASM (and QEMU, GDB and DOSBox if applicable) installed.
+
+### Building the disk image
+
+```sh
+make
+```
+
+### Running on QEMU
+
+```sh
+make run
+```
+
+### Running on DOSBox
+
+```sh
+make run-dosbox
+```
+
+### Debugging using QEMU and GDB
+
+Starting QEMU in debug mode:
+
+```sh
+make run-gdb
+```
+
+Attaching to the virtual machine:
+
+```sh
+make attach
+```