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.PHONY: all clean run
.SUFFIXES: .c.o .s.o
FDIMAGE=floppy.img
BINARY=bootsect 55aa kernel yotsh reader while1 pmboot pmkern
YOT16_LIBC=yotlibc/yotlibc.a
YOT32_KLIB=yotk32/yotk32.a
QEMU=qemu-kvm
RM=rm -f
all: floppy.img
floppy.img: $(BINARY)
dd if=/dev/zero of=$@ bs=512 count=2880
dd if=55aa of=$@ bs=1 count=2 seek=510 conv=notrunc
dd if=bootsect of=$@ conv=notrunc
dd if=kernel of=$@ bs=512 seek=1 conv=notrunc
dd if=yotsh of=$@ bs=512 seek=32 conv=notrunc
dd if=while1 of=$@ bs=512 seek=72 conv=notrunc
dd if=reader of=$@ bs=512 seek=73 conv=notrunc
dd if=pmboot of=$@ bs=512 seek=100 conv=notrunc
dd if=pmkern of=$@ bs=512 seek=101 conv=notrunc
.c.o:
bcc -ansi -Mc -Iyotlibc -c $< -o $@
.s.o:
nasm -f as86 $< -o $@
bootsect: bootsect.s basic.s
nasm -f bin $< -o $@
55aa:
echo "0000000: 55aa" | xxd -r > $@
kernel: kernel.o
ld86 -T 0x0000 -d $^ -o $@
yotsh: yotsh.o $(YOT16_LIBC)
ld86 -T 0x0000 -d $^ -o $@
reader: reader.o $(YOT16_LIBC)
ld86 -T 0x0000 -d $^ -o $@
while1: while1.o $(YOT16_LIBC)
ld86 -T 0x0000 -d $^ -o $@
pmboot: pmgdt.s
nasm -f bin -dload_offset=0x00500 -dpmkernel=0x00700 $< -o $@
pmkern: pmkern.o pmint.o $(YOT32_KLIB)
ld -melf_i386 -Ttext 0x00700 $^ --oformat binary -o $@
pmkern.o: pmkern.s
nasm -f elf32 $< -o $@
pmint.o: pmint.c
gcc -m32 -masm=intel -ffreestanding -fleading-underscore \
-Iyotk32 -c $< -o $@
$(YOT16_LIBC):
$(MAKE) -C yotlibc
$(YOT32_KLIB):
$(MAKE) -C yotk32
run: floppy.img
$(QEMU) -fda $(FDIMAGE) $(QARG)
clean:
$(RM) $(FDIMAGE) $(BINARY) kernel.o reader.o while1.o yotsh.o \
pmkern.o pmint.o
$(MAKE) -C yotlibc clean
$(MAKE) -C yotk32 clean
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