Uploading this stupid project

Makefile

@@ -0,0 +1,11 @@
+ASM=nasm
+
+SRC_DIR=src
+BUILD_DIR=build
+
+$(BUILD_DIR)/main_floppy.img: $(BUILD_DIR)/main.bin
+	cp $(BUILD_DIR)/main.bin $(BUILD_DIR)/main_floppy.img
+	truncate -s 1440k $(BUILD_DIR)/main_floppy.img
+
+$(BUILD_DIR)/main.bin: $(SRC_DIR)/main.asm
+	$(ASM) $(SRC_DIR)/main.asm -f bin -o $(BUILD_DIR)/main.bin

src/main.asm

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+org 0x7C00
+bits 16
+
+%define ENDL 0x0D, 0x0A
+
+start:
+	jmp main
+
+puts:
+	push si
+	push ax
+	push bx
+	
+.loop:
+	lodsb 
+	or al, al
+	jz .done
+
+	mov ah, 0x0E
+	mov bh, 0
+	int 0x10
+	
+	jmp .loop
+	
+.done:
+	pop bx
+	pop ax
+	pop si
+	ret
+
+main:
+
+	mov ax, 0
+	mov ds, ax
+	mov es, ax
+
+	mov ss, ax
+	mov sp, 0x7C00
+
+	mov si, msg_hello
+	call puts
+
+	hlt
+
+.halt:
+	jmp .halt
+
+msg_hello: db 'Hello World!', ENDL, 0
+
+times 510-($-$$) db 0
+dw 0AA55h