X-Git-Url: http://git.dujemihanovic.xyz/posts?a=blobdiff_plain;f=boot.s;h=76880b009eded1d15e93792478061d121a920859;hb=f9f4f8ebffb463d53ae5a239ddfbe8380f258b8b;hp=50730d0c39dd9566f3eef2e0b87582758af13444;hpb=4326df7844154f8c575a33b3898709944e08f74b;p=nameless-os.git

diff --git a/boot.s b/boot.s
index 50730d0..76880b0 100644
--- a/boot.s
+++ b/boot.s
@@ -1,22 +1,18 @@
 	bits 16 ; boot sectors run in real mode
-	org 7c00h ; boot sector is always loaded at 0x7c00
+	org 7c00h ; boot sector is loaded at 0x7c00
 
-	mov al, 1 ; update cursor after write
-	mov bh, 0 ; write to page 0
-	mov bl, 00000111b ; attribute: high nibble is foreground (light gray),
-					  ; low nibble is background (black)
-					  ; NOTE: in the binary, these will be inverted, so low nibble here will become high nibble in binary and vice versa!
-	mov cx, msg1end - msg1 ; size of message
-	mov dl, 0 ; column to write to
-	mov dh, 0 ; row to write to
-	push cs ; push code segment to stack
-	pop es ; pop pushed code segment to extra segment, this serves as the base to the string
-	mov bp, msg1 ; offset where the string is
-	mov ah, 13h ; write string subservice 
-	int 10h ; call BIOS interrupt 0x10
-	jmp msg1end ; jmp to endless loop
-	msg1 db "Gotta start somewhere"
-	msg1end: jmp msg1end
+	mov dx, 0DEADh ; number to print
+	mov cl, 0 ; column
+	mov ch, 0 ; row
+	call print_word
+	mov dx, 0BEEFh
+	mov cl, 0
+	mov ch, 1
+	call print_word
+
+	jmp $
+
+%include "print.s"
 
 	times 510-($-$$) db 0 ; fill with 0 until 0x1fc is reached
-	dw 0xaa55 ; BIOS MBR signature
+	dw 0AA55h ; BIOS MBR signature