ED: Gotten l (list) working, need to work more on d (delete) as there's a bug with deleting lines that are not line 1.

source/kernel/features/disk.asm

@@ -171,7 +171,7 @@ disk_clear_output_buffer:
 ; OUT
 ; data_buffer: file contents
 ; TODO use predefined data for calculations
-; carry flag: set if failed to load file
+; CX = 0 if failed to load
 disk_load_file:
    pusha
    call string_length ; cl = string length
@@ -235,10 +235,11 @@ disk_load_file:
    jmp .done_fail
 .done_fail:
 	popa
-	stc
+	mov bx, 1
 	ret
 .done:
    popa
+	xor bx,bx
    ret
 
 ; Write data to file