Name		Z80_Dec; 
Partno		g16v8; 
Date		25/04/17; 
Revision	00; 
Designer	Paolo Iocco; 
Company	GC73; 
Assembly	00; 
Location	Munich; 
Device		G16V8;

/* ****************************** */
/* Z80 memory and I/O decoder	*/
/* Memory Map				*/ 
/* 0000-1FFF EPROM			*/
/* 2000-3FFF RAM			*/
/* xxx IO0				*/
/* yyy IO1				*/
/* ****************************** */

/** Inputs **/
pin 2 = A15;
pin 3 = A14;
pin 4 = A13;
pin 5 = A7;
pin 6 = A6;
pin 7 = !MREQ;
pin 8 = !IOREQ;

/** Outputs **/

pin 19 = EPROM;
pin 18 = RAM;
pin 17 = IO0;
pin 16 = IO1;


/** Logic Equations **/

!EPROM = !A15 & !A14 & !A13 & !MREQ ;
!RAM = !A15 & !A14 & A13 & !MREQ ; 
!IO0 = !A7 & !A6 & !IOREQ ;
!IO1 = !A7 & A6 & !IOREQ ;