30 lines
860 B
Bash
30 lines
860 B
Bash
mkdir -p bin bin/dest
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set -e
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# Create a blank floppy image.
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dd if=/dev/zero of=bin/drive.img bs=512 count=2880 status=none
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# Assemble and copy the bootloader.
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nasm boot.s -f bin -o bin/boot
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dd if=bin/boot of=bin/drive.img bs=512 count=1 conv=notrunc status=none
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# Assemble the system.
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nasm system.s -f bin -o bin/dest/system
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# Check the system fits in 32KB.
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# The bootloader can't load files greater than a 64KB segment,
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# and the system uses the upper 32KB of its segment for buffers.
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if [ $(wc -c <bin/dest/system) -ge 32768 ]; then
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echo "System too large (more than 32KB)."
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exit 1
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fi
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# Copy the system and other files to the floppy.
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gcc -o bin/mkfs mkfs.c
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cp *.lisp bin/dest
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bin/mkfs bin/drive.img 2880 bin/dest
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# Launch the emulator.
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qemu-system-x86_64 -drive file=bin/drive.img,index=0,if=floppy,format=raw -boot a
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# bochs -f bochs_config.txt -q
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