nero/rdos
1
0
Fork 0
Code Pull requests Releases Activity

resume working; import awk-based assembler

Browse source
This commit is contained in:
Nero 2023-01-01 19:04:31 +00:00
parent e48ae306ba
commit 77b1ad7cef
4 changed files with 451 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

72
Makefile
View file

@ -1,80 +1,42 @@
PROGRAMS = hello.com sys.com
KERNEL = @rdos.com
DISTFILES = $(KERNEL) $(PROGRAMS)
VERSION = $(shell git log -1 --format=%cd --date=format:%Y%m%d)
PRODUCT = rdos
VERSION = $(shell git log -1 --format=%cd --date=format:%Y%m%d)
QEMU = qemu-system-i386
QEMU_ARGS += $(shell test -w /dev/kvm && echo --enable-kvm)
METRIC = stat -c '%8s %n'
PROGRAMS = hello.com sys.com
KERNEL = @$(PRODUCT).com
DISTFILES = $(KERNEL) $(PROGRAMS)
FLOPPY = 1440
# Programs used for building
NASM = nasm
NASM_ARGS = -s -Isrc --before "cpu 8086" -DPRODUCT=$(PRODUCT) -DVERSION=$(VERSION)
NASM_ARGS = -s --before "cpu 8086" -DPRODUCT=$(PRODUCT) -DVERSION=$(VERSION)
AS = host/as
SYS = ./sys.elf
ifndef DISPLAY
QEMU_ARGS += --display curses
endif
SYS = host/sys.elf
.PHONY: default clean qemu-floppy5 qemu-floppy3
.PHONY: default clean qemu
.PRECIOUS: %.com
default: fd1440.img
default: fd$(FLOPPY).img
# Host utils
host/%.elf: host/%.c
%.elf: host/%.c
$(CC) -o $@ $<
# COM programs
%.com: src/%.asm src/*.inc
$(NASM) $(NASM_ARGS) -l $(@:.com=.lst) -o $@ $<
$(METRIC) $@
$(NASM) $(NASM_ARGS) -Isrc -l $(@:.com=.lst) -o $@ $<
%.hex: src/%.asm src/*.inc
$(NASM) $(NASM_ARGS) -f ith -l $(@:.hex=.lst) -o $@ $<
# Bootloaders, first sector on partition
# Bootloader images
%.bs: boot/%.asm
$(NASM) $(NASM_ARGS) -o $@ $<
# Special case: variations of FAT vbr
fat1.bs: boot/fat.asm
$(NASM) $(NASM_ARGS) -DFAT12 -DCHS -o $@ $<
fat4.bs: boot/fat.asm
$(NASM) $(NASM_ARGS) -DFAT16 -DCHS -o $@ $<
fat6.bs: boot/fat.asm
$(NASM) $(NASM_ARGS) -DFAT16 -DCHS -DLARGE -o $@ $<
$(AS) $@ $<
fd%.img: $(DISTFILES) $(SYS)
mformat -C -i $@ -f $* -v "$(PRODUCT) $(VERSION)" ::
mcopy -i $@ $(DISTFILES) ::
$(SYS) $@ $(KERNEL)
hdd.img: mbr.bs $(KERNEL) fd1440.img
dd if=mbr.bs bs=512 count=1 of=$@
dd if=$(KERNEL) bs=512 seek=1 of=$@
dd if=fd1440.img bs=512 seek=63 of=$@
clean:
rm -f *.com *.bs *.0 *.lst *.img *.bin *.hex
rm -f host/*.elf
qemu-floppy3: fd1440.img
$(QEMU) $(QEMU_ARGS) -boot a -fda fd1440.img
qemu-floppy5: fd360.img
$(QEMU) $(QEMU_ARGS) -boot a -fda fd360.img
qemu-hdd: hdd.img
$(QEMU) $(QEMU_ARGS) -boot c -hda hdd.img
dosbox-%: %.com fd1440.img
dosbox -c "mount P $(CURDIR)" -c P: -c "IMGMOUNT A: FD1440.IMG -t floppy" -c "$< $(ARGS)" -c pause -c exit
emu2-%: %.com
emu2 $< $(ARGS)
qemu: fd$(FLOPPY).img
qemu-system-i386 $(shell test -w /dev/kvm && echo --enable-kvm) $(shell test -n "$DISPLAY" || echo --display curses) -boot a -drive file=fd$(FLOPPY).img,format=raw,index=0,if=floppy