Merge pull request #16 from E-Almqvist/dev

Update

src/bootloader.asm

@@ -27,7 +27,3 @@ BOOT_DRIVE: db 0
 ; Bootsector
 times 510-($-$$) db 0
 dw 0xaa55 ; magic BIOS numbers
-
-; After bootsector 
-times 256 dw 0xEEEE
-times 256 dw 0xAAAA

src/pm/vga/print.asm

@@ -1,24 +1,26 @@
 [bits 32]
 
 ; VGA base address: 0xb8000
-; Charpos = 0xb8000 + 2 * (row * 80 + col)
+; Charpos = 0xb8000 + 2(row*80 + col)
+
+vga_color_buf: db 0x0f		; Buffer to be changed so that we can choose colors!
 
 vga_print:
 	pusha
 	mov edx, VIDEO_MEM
 
 	vga_print_loop:
-		mov al, [ebx]
-		mov ah, 0x0f
+		mov al, [ebx]		; Pointer to char
+		mov ah, [vga_color_buf]	; Color code
 
-		cmp al, ASCII_END
-		je vga_print_return
+		cmp al, ASCII_END	; Check if end of string
+		je vga_print_return	; If end then return
 
-		mov [edx], ax
-		inc ebx
+		mov [edx], ax		; Move charpos
+		inc ebx			; Increment to next
 		add edx, 2
 
-		jmp vga_print_loop
+		jmp vga_print_loop	; Loop back until end of string
 	
 	vga_print_return:
 		popa