PAL16R4                                               PAL DESIGN SPECIFICATION
P7035                                                   BRAD MITCHELL 04/07/81
8-STATE MACHINE AND WIN-LOSE DECODER
MMI FIELD APPLICATIONS ENGINEER DALLAS, TEXAS
CLK /ROLL /2 /7 /11 CP NC NC /T GND
/OC NC /NCA NC /C /B /A /LOSE /WIN VCC


IF(VCC) WIN  =  A* B*/C                        ;DECODE THE WIN STATE

IF(VCC) LOSE =  A*/B* C                        ;DECODE THE LOSE STATE

IF(VCC) NCA  =  A* B*/C*/ROLL                  ;STATE DECODES DERIVED
             +  A*/B* C*/ROLL                  ;FROM THE KARNAUGH MAP
             + /A* B* C*/ROLL                  ;NCA IS ADDITIONAL DECODE FOR A

          A := /A* B*/C*/ROLL* 7           * T ;STATE DECODES DERIVED
             + /A* B*/C*/ROLL   * 11       * T ;FROM THE KARNAUGH MAP
             + /A* B*/C*/ROLL       * 2    * T
             +  A*/B*/C*/ROLL*/7*/11   */CP* T
             +  A*/B*/C*/ROLL* 7           * T
             +  A*/B*/C*/ROLL   * 11       * T
             +  A*/B*/C*/ROLL          * CP* T
             +  NCA    */ROLL              * T ;PICK ADDITIONAL DECODE LOGIC
                                               ;FROM NCA

          B := /A*/B* C*/ROLL              * T ;STATE DECODES DERIVED
             + /A* B*/C*/ROLL* 7           * T ;FROM THE KARNAUGH MAP
             + /A* B*/C*/ROLL   * 11       * T
             + /A* B*/C      */7*/11*/2    * T
             +  A*/B*/C* ROLL*/7*/11   */CP* T
             +  A*/B*/C*/ROLL          * CP* T
             +  A* B   */ROLL              * T
             +     B* C* ROLL              * T

          C := /A* B*/C*/ROLL       * 2    * T
             + /A* B*/C* ROLL*/7*/11*/2    * T
             +  A*/B*/C*/ROLL* 7           * T
             +  A*/B*/C*/ROLL   * 11       * T
             + /A*/B   * ROLL              * T
             +  A   * C*/ROLL              * T
             + /A* B* C* ROLL              * T


FUNCTION TABLE

CLK ROLL 7 11 2 CP NCA T A B C LOSE WIN

;-INPUTS-           -OUTPUTS-
;CR712CNT           ABC   L W
;LO 1 PC                  O I
;KL    A                  S N
; L                       E      COMMENTS
-------------------------------------------------------------------------
 CHXXXXXL           LLL   L L    TEST INITIATION AND GAME START
 CHXLXXLH           LLH   L L
 CHXXXXLH           LLH   L L
 CLXXXXLH           LHL   L L
 CLHLXXHH           HHL   L H    WIN BECAUSE A 7 WAS ROLLED
 CLXXXXHH           HHL   L H    HOLD WIN WHEN NOT ROLLING
 CHXXXXLH           LLL   L L    RESTART GAME
 CHXXXXLH           LLH   L L
 CLXXXXLH           LHL   L L
 CLXXHXHH           HLH   H L    LOSE BECAUSE OF 2 ON FIRST ROLL
 CLXXXXHH           HLH   H L    HOLD LOSE WHEN NOT ROLLING
 CHXXXXLH           LLL   L L    RESTART GAME
 CHXXXXLH           LLH   L L
 CLXXXXLH           LHL   L L
 CLLLLXLH           LHL   L L
 CHLLLXLH           LHH   L L
 CHXXXXLH           LHH   L L
 LLXXXXHH           LHH   L L
 CLXXXXLH           HLL   L L
 CLLLXHHH           HHL   L H    WIN BECAUSE POINT WAS MATCHED
 CHXXXXLH           LLL   L L    RESTART GAME
 CHXXXXLH           LLH   L L
 CLXXXXLH           LHL   L L
 CHLLLXLH           LHH   L L
 LLXXXXHH           XXX   L L
 CLXXXXLH           HLL   L L
 CLHHXXHH           HLH   H L    LOSE BECAUSE 7 OR 11 WAS ROLLED ON SECOND ROLL
-------------------------------------------------------------------------------


DESCRIPTION

THIS PAL SERVES AS THE MAIN LOGIC UNIT.  IT IS THE 8 STATE MACHINE WHICH
CONTROLS WHERE WE ARE IN THE GAME.  IT ALSO DETECTS THE WIN AND LOSE STATES.
PIN /T IS USED TO INITIATE THE GAME TO STATE 000 FOR I.C. TEST EQUIPMENT.