Comment &
   FUNKCIJA f(X, Y):
   (2XY^3 - Z+2)/(-X^2Z - 2+Y),  ja (2XY^3 - Z+2) > 0
   (2XY^3 - Z+2)/(XZ^3 - Y),  ja (2XY^3 - Z+2) < 0
&


.model tiny
.code
.startup
.386
           Org 100h
           Jmp Short _Start
X          Db  2
Y          Db  2
Z 			Db -1
Two			Db 2
Zero       Equ 0
ZerDiv     Dw  0
_Start:
			Mov Al, Y
			Imul Y
			MovSx Bx, Y
			Imul Bx, Ax		;x^3

			movsx ax, X
			Imul Ax, ax, 2 ;ax:=2X

			Imul Bx, Ax  ;bx:=2xy^3
			MovSx ax, z
			Sub Bx, Ax
			inc Bx
			inc Bx
			Jne   Not_Zero

           Mov   Dx, Zero
           Jmp   Short _Exit



Not_Zero:
			Mov Cx, Bx		;Cx:= A
           Jl  Branch_C	;(-X^2Z - 2+Y)
		   Mov al, X
		   Imul X
		   Neg Ax
		   MovSx bx, z
		   Imul ax,bx
		   dec ax
		   dec ax
		   MovSx bx, y
		   add ax, bx



           Jmp   Short Rezult


Branch_C:
					;(XZ^3 - Y)
		   Mov al, z
		   Imul z
		   Movsx bx, z
		   Imul ax, bx
		   Movsx bx, x
		   Imul ax, bx
		   MovSx bx, y
		   sub ax, bx


Rezult:
           Cmp    Ax, Zero
           Jne    _Div

           Mov    ZerDiv, 1
           Jmp    Short _Exit

_Div:
			Mov bx, cx
           Xchg   Ax, Bx        ;       Ax = FFF7 (-9), Bx = FFFF (-1)
           MovSx  EBx, Bx      	;386   EBx = FFFF FFFF
           Cwde			;386   EAx = FFFF FFF7
           Cdq 			;386   EDx = FFFF FFFF
           IDiv   EBx		;386   EAx = 0000 0009, EDx = 0000 0000
_Exit:

;.exit 0
end