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Got the OS to boot from new disk image

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- Pretty much rewrote stage1.asm
- Changed some addresses in stage2.asm and in memory/adresses.h
- Changed stage3.c to read root INode and it's dirEntries to find kernel.bin and term16n.fnt
- Made a fake ls command in kernel.c, just so it prints something
- Fixed makedisk.c to make the disk image properly
- Changed Makefile to compile makedisk.c and then run makedisk
- Added makedisk executable to .gitignore
This commit is contained in:
Tom-on
2024-06-02 19:09:33 +02:00
parent 2a9d33d733
commit 9c96636436
8 changed files with 258 additions and 174 deletions
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Makefile
+5 -16
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@@ -14,24 +14,11 @@ FONTS = testfont term16n
.PHONY: os clean run
# Main compilation target
os: $(BUILD) filesystem
os: $(BUILD) bootloader kernel $(C_FILES) $(FONTS)
@cc ./makedisk.c -o ./makedisk
@./makedisk # TODO: List of files
@echo "\nDone!\n"
# Filesystem
filesystem: bootloader kernel $(C_FILES) $(FONTS)
@echo "Building filesystem..."
@$(AS) -fbin -o $(BUILD)/filetable.bin $(SRC)/filetable.asm
@dd if=/dev/zero of=kern.iso bs=512 count=2880 status=none
# TODO: Make this not so manual
@dd if=$(BUILD)/boot.bin of=kern.iso bs=512 seek=0 conv=notrunc status=none
@dd if=$(BUILD)/filetable.bin of=kern.iso bs=512 seek=15 conv=notrunc status=none
@dd if=$(BUILD)/kernel.bin of=kern.iso bs=512 seek=16 conv=notrunc status=none
@dd if=$(BUILD)/term16n.fnt of=kern.iso bs=512 seek=56 conv=notrunc status=none
@dd if=$(BUILD)/testfont.fnt of=kern.iso bs=512 seek=60 conv=notrunc status=none
@dd if=$(SRC)/fs/test.txt of=kern.iso bs=512 seek=64 conv=notrunc status=none
@dd if=$(BUILD)/calc.bin of=kern.iso bs=512 seek=65 conv=notrunc status=none
@dd if=$(BUILD)/editor.bin of=kern.iso bs=512 seek=71 conv=notrunc status=none
$(BUILD):
@[ -d $(BUILD) ] || mkdir $(BUILD)
@rm -rf $(BUILD)/*
@@ -55,12 +42,14 @@ kernel: $(SRC)/kernel.c
@$(LD) -T$(SRC)/kernel.ld -z notext --oformat binary -o $(BUILD)/kernel.bin $(BUILD)/kernel.o
@rm $(BUILD)/kernel.o
# This target compiles *.c (except kernel.c)
$(C_FILES):
@echo "Compiling $(SRC)/$@.c..."
@$(CC) $(CFLAGS) -o $(BUILD)/$@.o -c $(SRC)/$@.c
@$(LD) -T$(SRC)/$@.ld -z notext --oformat binary -o $(BUILD)/$@.bin $(BUILD)/$@.o
@rm $(BUILD)/$@.o
# This target builds all fonts inside src/fonts
$(FONTS):
@echo "Assembling $(SRC)/fonts/$@.asm..."
@$(AS) -fbin -o $(BUILD)/$@.fnt $(SRC)/fonts/$@.asm