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Make it run in QEMU.

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Looks like the problem was the weirdly-sized floppy image file.
I guess QEMU was inferring the floppy disk geometry from the image size.
This commit is contained in:
Andreas Kling 2018-11-08 02:03:19 +01:00
parent da3857b0c2
commit 71a2942a0a
2 changed files with 7 additions and 4 deletions
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5
Kernel/Makefile
View file

@ -80,7 +80,10 @@ $(KERNEL): $(OBJS)
@echo "LD $@"; $(LD) $(LDFLAGS) -o $@ -Ttext 0x10000 $(OBJS)
$(IMAGE): $(KERNEL) $(BOOTLOADER)
@echo "CREATE $@"; cat $(BOOTLOADER) $(KERNEL) > $(IMAGE)
@echo "CREATE $@"; cat $(BOOTLOADER) $(KERNEL) > .tmp-floppy-image
@dd if=/dev/zero bs=2M count=1 >> .tmp-floppy-image 2> /dev/null
@dd if=.tmp-floppy-image of=.floppy-image bs=1440k count=1 2>/dev/null
@rm -f .tmp-floppy-image
$(BOOTLOADER): Boot/boot.asm
@echo "NASM $<"; $(NASM) -f bin -o $@ $<

6
Kernel/run
View file

@ -1,8 +1,8 @@
#!/bin/sh
if [ "$1" = "q" ]; then
qemu-system-i386 -drive format=raw,file=.floppy-image,if=floppy -drive format=raw,file=_fs_contents #$@
else
if [ "$1" = "b" ]; then
bochs -q -f .bochsrc
else
qemu-system-i386 -m 32 -drive format=raw,file=.floppy-image,if=floppy -drive format=raw,file=_fs_contents #$@
fi