converted to protected mode, not done

[ld45_start_nothing] / Makefile

diff --git a/Makefile b/Makefile
index 90ea9da..165c473 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,45 +1,63 @@
-src = $(wildcard src/*.asm)
+src = $(wildcard src/boot/*.asm) $(wildcard src/*.asm)
+obj = $(src:.asm=.o)
 data = data/sprsheet.inc
-bin = game
+name = game
+elf = $(name).elf
+bin = $(name).bin
 
-QEMU_FLAGS = -fda floppy.img -serial file:serial.log -soundhw sb16 -d guest_errors
+ASFLAGS = -f elf32
+LDFLAGS = -m elf_i386 -T game.ld -print-gc-sections
+
+QEMU_FLAGS = -fda floppy.img -serial file:serial.log -d guest_errors
 
 .PHONY: all
 all: floppy.img
 
-bootldr: src/boot/boot.asm $(bin)
-       nasm -o $@ -f bin -DBINSIZE=`ls -l $(bin) | awk '{print $$5}'` $<
-
-$(bin): $(src) $(data)
-       nasm -o $@ -f bin -i src/ src/main.asm
+floppy.img: boot.img
+       dd of=$@ if=/dev/zero bs=512 count=2880
+       dd of=$@ if=$< conv=notrunc
 
-boot.img: bootldr $(bin)
+boot.img: bootldr.bin $(bin)
        cat $^ >$@
 
-floppy.img: boot.img
-       dd of=$@ if=/dev/zero bs=512 count=2880
-       dd of=$@ if=$< bs=1 conv=notrunc
+bootldr.bin: $(elf)
+       objcopy -O binary -j '.boot*' $< $@
+
+$(bin): $(elf) $(data)
+       objcopy -O binary -R '.boot*' $< $@
+
+$(elf): $(obj)
+       $(LD) -o $@ $(obj) -Map link.map $(LDFLAGS)
+
+%.o: %.asm
+       nasm -o $@ $(ASFLAGS) $<
 
 data/sprsheet.inc: data/sprsheet.png
        img2tiles -o $@ -n -t 32x32 $<
 
 .PHONY: clean
 clean:
-       rm -f $(bin) bootldr floppy.img boot.img
+       rm -f $(bin) $(obj) bootldr.img floppy.img boot.img
 
 .PHONY: disasm
 disasm: bootldr.disasm $(bin).disasm
 
-bootldr.disasm: bootldr
+bootldr.disasm: bootldr.img
        ndisasm -b 16 -o 7c00h $< >$@
 
-$(bin).disasm: $(bin)
-       ndisasm -b 16 -o 7e00h $< >$@
+$(name).disasm: $(elf)
+       objdump -d $< -j .text -m i386 >$@
+
+$(name).sym: $(elf)
+       objcopy --only-keep-debug $< $@
 
 .PHONY: run
-run: $(bin)
+run: floppy.img
        qemu-system-i386 $(QEMU_FLAGS)
 
 .PHONY: debug
-debug: $(bin)
+debug: floppy.img
        qemu-system-i386 $(QEMU_FLAGS) -s -S
+
+.PHONY: sym
+sym: $(name).sym