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add kernel stub to distfiles

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this way i can test if the bootloader works as intended
This commit is contained in:
Nero 2020-03-25 20:56:00 +00:00
parent 398395371b
commit c51dca9949
2 changed files with 19 additions and 9 deletions
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14
Makefile
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@ -1,7 +1,7 @@
FLOPPY = 360 FLOPPY = 360
PROGRAMS = hello.com PROGRAMS = hello.com
DISTFILES = $(PROGRAMS) DISTFILES = $(PROGRAMS) rdos86.bs
ROMS = ROMS =
QEMU_ARCH = $(shell uname -m) QEMU_ARCH = $(shell uname -m)
@ -47,12 +47,6 @@ vga11.com: cp437.bin
# Bootloaders, first sector on partition # Bootloaders, first sector on partition
%.bs: %.asm %.bs: %.asm
$(NASM) $(NASM_ARGS) -DBASE=0x7C00 -DBOOT -o $@ $< $(NASM) $(NASM_ARGS) -DBASE=0x7C00 -DBOOT -o $@ $<
: check boot signature
test "$$(echo $$(xxd -p -l 2 -s 510 $@))" == 55aa
# Network bootstrap protocol as used for PXE
%.0: %.asm
$(NASM) $(NASM_ARGS) -DBASE=0x7C00 -DNBP -o $@ $<
# BIOS option roms # BIOS option roms
%.rom: rom/%.asm utils/fix-rom %.rom: rom/%.asm utils/fix-rom
@ -65,9 +59,11 @@ fdimage.img: fat.bs $(DISTFILES)
hdimage.img: mbr.bs fdimage.img hdimage.img: mbr.bs fdimage.img
cat mbr.bs fdimage.img >$@ cat mbr.bs fdimage.img >$@
part.img: fat32.bs part.img: fat32.bs $(DISTFILES)
dd if=/dev/zero bs=1024 count=33k of=$@ dd if=/dev/zero bs=1024 count=33k of=$@
mformat -F -i part.img -B fat32.bs :: mformat -i $@ -F -B fat32.bs ::
mmd -i $@ ::rdos
mcopy -i $@ $(DISTFILES) ::rdos
clean: clean:
rm -f *.com *.bs *.0 *.lst *.img *.bin *.rom rm -f *.com *.bs *.0 *.lst *.img *.bin *.rom

14
rdos86.asm Normal file
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@ -0,0 +1,14 @@
org 0x7C00
main: mov si, msg
mov ah, 0x0e
xor bx, bx
loop: lodsb
test al, al
jz end
int 0x10
jmp loop
end: hlt
jmp end
msg: db "rdos kernel stub", 0x0A, 0x0D, 0