PAL16R4                                           PAL DESIGN SPECIFICATAION
P7038                                                BRAD MITCHELL 07/28/81
STORE POINT /2, /7, AND /11 DECODE
MMI FIELD APPLICATIONS ENGINEER DALLAS, TEXAS
CLK /8S /4S /2S /1S /A /B /C /T GND
/OC NC /11 /P1S /P2S /P4S /P8S /7 /2 VCC


P8S :=  8S    */A* B*/C                *T ;LOAD INTO POINT ON FIRST ROLL
     +     P8S*/A* B* C                *T ;SAVE POINT IF NOT FIRST ROLL
     +     P8S* A*/B                   *T ;SAVE POINT
     +     P8S* A* B*/C                *T ;SAVE POINT

P4S :=  4S    */A* B*/C                *T ;LOAD INTO POINT IF FIRST ROLL
     +     P4S*/A* B* C                *T ;SAVE POINT IF NOT FIRST ROLL
     +     P4S* A*/B                   *T ;SAVE POINT
     +     P4S* A* B*/C                *T ;SAVE POINT

P2S :=  2S    */A* B*/C                *T ;LOAD INTO POINT IF FIRST ROLL
     +     P2S*/A* B* C                *T ;SAVE POINT IF NOT FIRST ROLL
     +     P2S* A*/B                   *T ;SAVE POINT
     +     P2S* A* B*/C                *T ;SAVE POINT

P1S :=  1S    */A* B*/C                *T ;LOAD INTO POINT IF FIRST ROLL
     +     P1S*/A* B* C                *T ;SAVE POINT IF NOT FIRST ROLL
     +     P1S* A*/B                   *T ;SAVE POINT
     +     P1S* A* B*/C                *T ;SAVE POINT

IF(VCC) 2  = /8S*/4S* 2S*/1S              ;DECODE THE NUMBER 2

IF(VCC) 7  = /8S* 4S* 2S* 1S              ;DECODE THE NUMBER 7

IF(VCC) 11 =  8S*/4S* 2S* 1S              ;DECODE THE NUMBER 11


FUNCTION TABLE

CLK 8S 4S 2S 1S  A B C T P8S P4S P2S P1S 2 7 11

;-------INPUTS-------    ----OUTPUTS----
;C 8 4 2 1   A B C  T    P P P P   2 7 1
;L S S S S               8 4 2 1       1
;K                       S S S S             COMMENTS
---------------------------------------------------------------------------
 C L L L L   L L L  L    L L L L   L L L     INITIATE ALL REGISTERS TO LOW
 C H L L H   L H L  H    H L L H   L L L     LOAD A NUMBER INTO POINT
 C L L L L   L H H  H    H L L H   L L L     SAVE THE NUMBER IN POINT
 C L L L L   H L X  H    H L L H   L L L     SAVE THE NUMBER IN POINT
 C L L L L   H H L  H    H L L H   L L L     SAVE THE NUMBER IN POINT
 C L L H L   L H L  H    L L H L   H L L     LOAD POINT & DECODE A "2"
 C L H H H   L H L  H    L H H H   L H L     LOAD POINT & DECODE A "7"
 C H L H H   L H L  H    H L H H   L L H     LOAD POINT & DECODE A "11"
---------------------------------------------------------------------------


DESCRIPTION

THIS PAL IS USED TO STORE THE POINT IN THE GAME.  IT ALSO DECODES THE NUMBERS
2, 7, AND 11 TO BE USED IN DETERMINING WIN OR LOST.