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Moved stuff around and added a makefile also got a custom bootloader

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based on the JazzOS bootloader (modified a bit)
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deadvey
2025-10-20 10:52:03 +01:00
parent 07932e2ce0
commit d38a233b62
33 changed files with 1248 additions and 890 deletions
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25
Makefile Normal file
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@@ -0,0 +1,25 @@
ASM=nasm
SRC_DIR=source
BUILD_DIR=disk_images
DATA_DIR=data
# Floppy image
# Fat12
floppy_image: $(BUILD_DIR)/crawos.img
$(BUILD_DIR)/crawos.img: bootloader kernel
dd if=/dev/zero of=$(BUILD_DIR)/crawos.img bs=512 count=2880 # Use dd to make a disk image
mkfs.fat -F 12 -n "CRAWOS" $(BUILD_DIR)/crawos.img # Format the disk image with fat12
dd if=$(BUILD_DIR)/boot.bin of=$(BUILD_DIR)/crawos.img conv=notrunc # Put boot.bin inside the disk image
mcopy -i $(BUILD_DIR)/crawos.img $(BUILD_DIR)/kernel.bin "::kernel.bin" # Put kernel.bin inside the disk image
for filename in $(DATA_DIR)/*; do mcopy -i $(BUILD_DIR)/crawos.img $$filename "::/$$(echo $$filename | xargs -n 1 basename)"; done
# Bootloader
bootloader: $(BUILD_DIR)/boot.bin
$(BUILD_DIR)/boot.bin:
$(ASM) $(SRC_DIR)/bootload/boot.asm -f bin -o $ $(BUILD_DIR)/boot.bin
# Kernel
kernel: $(BUILD_DIR)/kernel.bin
$(BUILD_DIR)/kernel.bin:
$(ASM) $(SRC_DIR)/kernel/kernel.asm -f bin -o $ $(BUILD_DIR)/kernel.bin