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#!/bin/sh
AS_BOOT="nasm -fbin -Isrc/boot/ -Isrc/"
AS_KERN="nasm -fbin -Isrc/boot/ -Isrc/kernel/ -Isrc/"
SRC_DIR="src"
DST_DIR="dst"
IMG_FILE="disk.img"
clean()
{
rm -f $IMG_FILE
rm -f $ISO_FILE
rm -rf $DST_DIR
}
build()
{
clean
mkdir -p $DST_DIR/boot
mkdir -p $DST_DIR/objs
$AS_BOOT $SRC_DIR/boot/boot.stage1.asm -o $DST_DIR/objs/s1_boot.bin
$AS_BOOT $SRC_DIR/boot/boot.stage2.asm -o $DST_DIR/objs/s2_boot.bin
$AS_KERN $SRC_DIR/kernel/kernel.asm -o $DST_DIR/objs/kernel.bin
dd if=/dev/zero of=$IMG_FILE bs=512 count=14336
dd if=$DST_DIR/objs/s1_boot.bin of=$IMG_FILE bs=512 count=1 conv=notrunc
dd if=$DST_DIR/objs/s2_boot.bin of=$IMG_FILE bs=512 seek=1 conv=notrunc
dd if=$DST_DIR/objs/kernel.bin of=$IMG_FILE bs=512 seek=10 conv=notrunc
}
run()
{
qemu-system-i386 -drive format=raw,file=$IMG_FILE
}
debug()
{
qemu-system-i386 -drive format=raw,file=$IMG_FILE -S -s
}
case $1 in
"clean") clean ;;
"build") build ;;
"run") run ;;
"debug") debug ;;
*) echo "Use clean|build|run|debug" ;;
esac
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