updates to dsa libs

resources/dsa/lib/maths/fib.dsa

@@ -1,18 +1,30 @@
-fib_n:
-    pop ret
-    pop rg0 // n
+include print "../io/print.dsa"
+
+fib_n:
+	push bpr
+	mov spr, bpr
+
+	ldw bpr, rg1, 8  // load op 2
 
-    lli 0, rg1
-    lli 1, rg2
-    
 start:
+    mov rg1, rg2
     add rg1, rg2, acc
+
+    pusha 4
     push rg1
+    call print::print_hex_word
+    pop rg1
+    popa 4
+
     mov rg2, rg1
     mov acc, rg2
-    
+
     cmp rg0, zero
     dec rg0
-    
+
     jgt start
-    jmp 4, ret
+
+    stw rg1, bpr, 8
+    mov bpr, spr
+    pop bpr
+    return