TITLE      MULTI_LEVEL
DATE       March 4, 1998
REVISION   1.0
PATTERN    ?
Author   Vikas
Company    UK
CHIP DEVICE PALCE22V10H

;**********************************************************************
; This example shows how a multi-level logic cicuit is implemented   
; with a PAL.                                                        
;**********************************************************************

;**  Inputs  **
Pin 2  A
Pin 3  B
Pin 4  C
Pin 5  D
Pin 6  E
Pin 7  F
Pin 8  G
Pin 9  H
Pin 13  I
Pin 18  J
;**  Outputs  **
Pin 17   /X 

EQUATIONS
;** Logic Equations **
                                             
; X = (B + C * /D + (E * F + G) * A)  + ( B + C * /D + (E * F + G) * H) + I + J
X = ((  /((B+C) * /D) +  E*F + G) * A) + 
   ((((B+C) * /D) +  E*F + G) * H) +I+J




SIMULATION
TRACE_ON    X A B C D E F G H I J   ;Variables to be simulated
SETF        A 
CHECK       X
SETF        B 
CHECK      /X
SETF        /C D E F 
CHECK       X
SETF        /G H /I 
CHECK      X
SETF        J 
CHECK      X
SETF        A
CHECK      X
SETF        /A /B C D /E /F G H I /J
CHECK      X
SETF       /A B /C D E /F G /H /I /J
CHECK      /X
TRACE_OFF