M72 A-3D

Found on...

• Air Duel
• Battle Chopper
• Dragon Breed
• Gallop
• Hammerin' Harry
• Image Fight
• Legend of Hero Tonma
• Mr Heli
• Ninja Spirit
• Saigo no Nindou
• R-Type
• X-Multiply

Equations

/** Inputs **/
Pin	1 = A19;
Pin	2 = A18;
Pin	3 = A17;
Pin	4 = A16;
Pin	5 = A15;
Pin	6 = A14;
Pin	7 = M_IO;
Pin	8 = DBEN;
Pin	9 = TNSL;
Pin	11 = BRQ;

/** Outputs **/
Pin	12 = BUFDBEN; /**(Combinatorial, No output feedback, Active low) **/
Pin	13 = BUFCS; /**(Combinatorial, Output feedback output, Active high) **/
Pin	14 = OBJ_P; /**(Combinatorial, Output feedback output, Active low) **/
Pin	15 = CHARA_P; /**(Combinatorial, Output feedback output, Active low) **/
Pin	17 = CHARA; /**(Combinatorial, Output feedback output, Active low) **/
Pin	18 = SOUND; /**(Combinatorial, Output feedback output, Active low) **/
Pin	19 = SDBEN; /**(Combinatorial, No output feedback, Active low) **/

/** Equations **/

!BUFDBEN = A19 & A18 & !A17 & !A16 & !A15 & !A14 & M_IO & !DBEN & TNSL;
BUFDBEN.oe = vcc;

BUFCS = !A19 & TNSL
    # !A18 & TNSL
    # A17 & TNSL
    # A16 & TNSL
    # A15 & TNSL
    # A14 & TNSL
    # !M_IO & TNSL;
BUFCS.oe = vcc;

!OBJ_P = A19 & A18 & !A17 & !A16 & A15 & !A14 & M_IO;
OBJ_P.oe = vcc;

!CHARA_P = A19 & A18 & !A17 & !A16 & A15 & A14 & M_IO;
CHARA_P.oe = vcc;

!CHARA = A19 & A18 & !A17 & A16 & M_IO;
CHARA.oe = vcc;

!SOUND = A19 & A18 & A17 & !A16 & M_IO;
SOUND.oe = vcc;

!SDBEN = A19 & A18 & A17 & !A16 & M_IO & !DBEN & !BRQ;
SDBEN.oe = vcc;