make config
make
make isoimage
qemu-system-x86_64 -cdrom arch/x86_64/boot/image.iso -serial stdio

(Can add -smp 4 option as well, but the BIOS my version of QEMU is using
 doesn't appear to provide an MP table, which Kitten depends on.  KVM seems
 to work fine with -smp 4 arg... all cpus are detected and initialized.)

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Scripts for building cross-compiler toolchains are in scripts/toolchain.
E.g., to build an x86-64 toolchain:

	cd scripts/toolchain
	./build-x86_64.sh

By default, the toolchain will be installed in /opt/toolchain/x86_64.
Edit PREFIX in build-x86_64.sh to change this.

To build a x86_64 Kitten using a cross-compiler:

	export PATH=/opt/toolchain/x86_64/bin:$PATH
	make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu- config
	make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu-

The resulting kernel image is at:

	arch/x86_64/boot/bzImage

This is a drop in replacement for a Linux bzImage.

If you have syslinux installed ('syslinux' Debian package), a bootable
iso cdrom image can be built with:

	make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu- isoimage

and booted under the Qemu full-system simulator ('qemu' Debian package):

	qemu-system-x86_64 -cdrom arch/x86_64/boot/image.iso