Family Day update

Task/Ackermann-function/X86-Assembly/ackermann-function.x86

@@ -0,0 +1,29 @@
+section .text
+
+global _main
+_main:
+    mov eax, 3 ;m
+    mov ebx, 4 ;n
+    call ack ;returns number in ebx
+    ret
+
+ack:
+    cmp eax, 0
+    je M0 ;if M == 0
+    cmp ebx, 0
+    je N0 ;if N == 0
+    dec ebx ;else N-1
+    push eax ;save M
+    call ack1 ;ack(m,n) -> returned in ebx so no further instructions needed
+    pop eax ;restore M
+    dec eax ;M - 1
+    call ack1 ;return ack(m-1,ack(m,n-1))
+    ret
+    M0:
+        inc ebx ;return n + 1
+        ret
+    N0:
+        dec eax
+        inc ebx ;ebx always 0: inc -> ebx = 1
+        call ack1 ;return ack(M-1,1)
+        ret