Added support for \n, \t and \\ in the string printing function

source/kernel/features/text.asm

@@ -1,4 +1,7 @@
 ; SI = pointer to start of string to be printed
+; \n for newline
+; \t for tab
+; \\ for a single backslash
 os_print_string:
 	pusha
 
@@ -8,34 +11,43 @@ os_print_string:
 	lodsb				; Get char from si into al
 	cmp al, 0			; Compare al to 0
 	je .done			; If char is zero, end of string
+	cmp al, 5Ch			; backslash
+	je .backslash
 
 	int 10h				; Otherwise, print it
 	jmp .repeat			; And move on to next char
 
+   .backslash: ; If there is a '\', do what it says, \n for newline, \t for tab etc
+	  lodsb
+	  dec si
+	  cmp al, 6Eh		; 'n'
+	  je .newline
+	  cmp al, 74h	; \t
+	  je .tab
+	  cmp al, 5Ch ; '\'
+	  je .another_backslash
+	  jmp .repeat
+   .newline:
+	  mov al, 0Ah ; new line
+	  int 10h
+	  mov al, 0Dh ; carriage return
+	  int 10h
+	  jmp .finish_backslash
+   .tab:
+	  mov al, 09h	; tab
+	  int 10h
+	  jmp .finish_backslash
+   .another_backslash: ; This just prints 1 backslash
+	  mov al, 5Ch
+	  int 10h
+	  jmp .finish_backslash
+   .finish_backslash:
+	  inc si
+	  jmp .repeat
 .done:
 	popa
 	ret
 
-; Exact same as the above procedure, but this adds a newline 
-; after priting, similar to the difference between Rust's print! and println!
-os_print_string_nl:				
-	pusha
-
-	mov ah, 0Eh			; int 10h teletype function, we're telling the BIOS we will print something
-
-.repeat:
-	lodsb				; Get char from si into al
-	cmp al, 0			; Compare al to 0
-	je .done			; If char is zero, end of string
-
-	int 10h				; Otherwise, print it
-	jmp .repeat			; And move on to next char
-
-.done:
-	call os_print_newline
-	popa
-	ret
-
 ; --------------------------------------------
 
 os_print_newline: