diff --git a/Apps/Source/Build.cmd b/Apps/Source/Build.cmd
index e423874c..0bc71d5f 100644
--- a/Apps/Source/Build.cmd
+++ b/Apps/Source/Build.cmd
@@ -63,9 +63,7 @@ set TGT=cpmname.com
 if exist %TGT% del %TGT%
 zx cz --o cpmname.a80 --DTINY cpmname
 zx as cpmname.a80
-zx cz --o cnamept1.a80 --DTINY cnamept1
-zx as cnamept1.a80
-zx ln cpmname.o cnamept1.o --ldwg --lt --lc
+zx ln cpmname.o --ldwg --lt --lc
 if not exist %TGT% echo *** Failed to build %TGT% ***  && pause
 
 echo.
diff --git a/Apps/Source/applvers.h b/Apps/Source/applvers.h
index 9576bea9..9958b6a4 100644
--- a/Apps/Source/applvers.h
+++ b/Apps/Source/applvers.h
@@ -5,10 +5,10 @@
 #define A_RMJ 2
 #define A_RMN 5
 #define A_RUP 0
-#define A_RTP 9
+#define A_RTP 10
 
 #define A_MONTH	5
-#define A_DAY 16
+#define A_DAY 17
 #define A_YEAR 2013
 #define A_YR   13
 
diff --git a/Apps/Source/applvers.lib b/Apps/Source/applvers.lib
index bbe0f4e0..d8173ba4 100644
--- a/Apps/Source/applvers.lib
+++ b/Apps/Source/applvers.lib
@@ -3,14 +3,14 @@
 A$RMJ	equ	2
 A$RMN	equ	5
 A$RUP	equ	0
-A$RTP	equ	9
+A$RTP	equ	10
 
 A$MONTH	equ	5
-A$DAY	equ	16
+A$DAY	equ	17
 A$YEAR	equ	2013
 
 date	macro
-dat	db	' 5/16/2013$'
+dat	db	' 5/17/2013$'
 	endm
 
 serial	macro
diff --git a/Apps/Source/cnamept1.c b/Apps/Source/cnamept1.c
deleted file mode 100644
index 8fcfe060..00000000
--- a/Apps/Source/cnamept1.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/* cnamept1.c 5/24/2012 dwg - added bootlu */
-
-#include "stdio.h"
-#include "stdlib.h"
-
-#include "portab.h"
-#include "std.h"
-
-#include "cnfgdata.h"
-#include "syscfg.h"
-
-extern pager();
-extern char * fmthexbyte();
-extern char * fmthexword();
-extern char * fmtbool();
-extern char * fmtenable();
-extern putscpm();
-
-char None[] = "*NONE*";
-char * PltName[] = {None, "N8VEM Z80", "ZETA Z80", "N8 Z180"};
-char * CIOName[] = {"UART", "ASCI", "VDU", "CVDU", "UPD7220", 
-			"N8V", "PRPCON", "PPPCON", "CRT", "BAT", "NUL"};
-char * DIOName[] = {"MD", "FD", "IDE", "ATAPI", "PPIDE",
-			"SD", "PRPSD", "PPPSD", "HDSK"};
-char * VDAName[] = {None, "VDU", "CVDU", "UPD7220", "N8V"};
-char * EmuName[] = {None, "TTY", "ANSI"};
-char * TermName[] = {"TTY", "ANSI", "WYSE", "VT52"};
-char * DiskMapName[] = {None, "ROM", "RAM", "FD", "IDE", 
-			"PPIDE", "SD", "PRPSD", "PPPSD", "HDSK"};
-char * ClrRamName[] = {"Never", "Auto", "Always"};
-char * FDModeName[] = {None, "DIO", "ZETA", "DIDE", "N8", "DIO3"};
-char * FDMediaName[] = {"720K", "1.44M", "360k", "1.2M", "1.11M"};
-char * IDEModeName[] = {None, "DIO", "DIDE"};
-
-cnamept1(pSysCfg)
-	struct SYSCFG * pSysCfg;
-{
-	struct CNFGDATA * pCfg;
-	char buf[5];
-	char buf2[5];
-	
-	pCfg = &(pSysCfg->cnfgdata);
-
-	printf("%s @ %dMHz, RAM=%dMB, ROM=%dMB", 
-		PltName[pCfg->platform], 
-		pCfg->freq,
-		pCfg->ramsize,
-		pCfg->romsize);
-	pager();
-	printf("RomWBW Version %d.%d.%d.%d, ", 
-		pCfg->rmj, pCfg->rmn,
-		pCfg->rup, pCfg->rtp);
-	putscpm((unsigned int)pSysCfg + (unsigned int)pSysCfg->tstloc);
-	pager();
-	if (pCfg->diskboot)
-		printf("Disk Boot Device=%s, Unit=%d, LU=%d",
-			DIOName[pCfg->devunit >> 4],
-			pCfg->devunit & 0xF, pCfg->bootlu);
-	else
-		printf("ROM Boot");
-	pager();
-	pager();
-	
-	printf("Default Console: %s, Alternate Console: %s",
-		CIOName[pCfg->defcon], CIOName[pCfg->altcon]);
-	pager();
-	printf ("Default Video Display: %s, Default Emulation: %s",
-		VDAName[pCfg->defvda], EmuName[pCfg->defemu]);
-	pager();
-	printf ("Current Terminal Type: %s",
-		TermName[pCfg->termtype]);
-	pager();
-	
-	printf("Default IO Byte: 0x%s, Alternate IO Byte: 0x%s",
-		fmthexbyte(pCfg->defiobyte, buf),
-		fmthexbyte(pCfg->altiobyte, buf2));
-	pager();
-	printf("Disk Write Caching=%s, Disk IO Tracing=%s",
-		fmtbool(pCfg->wrtcache), fmtbool(pCfg->dsktrace));
-	pager();
-	printf("Disk Mapping Priority: %s, Clear RAM Disk: %s",
-		DiskMapName[pCfg->dskmap], ClrRamName[pCfg->clrramdsk]);
-	pager();
-	pager();
-	
-	printf("DSKY %s", fmtenable(pCfg->dskyenable));
-	pager();
-	printf("UART %s, FIFO=%s, AFC=%s, Baudrate=0x%s",
-		fmtenable(pCfg->uartenable),
-		fmtbool(pCfg->uartfifo), fmtbool(pCfg->uartafc),
-		fmthexword(pCfg->baudrate, buf));
-	pager();
-	printf("VDU %s", fmtenable(pCfg->vduenable));
-	pager();
-	printf("CVDU %s", fmtenable(pCfg->cvduenable));
-	pager();
-	printf("UPD7220 %s", fmtenable(pCfg->upd7220enable));
-	pager();
-	printf("N8V %s", fmtenable(pCfg->n8venable));
-	pager();
-	pager();
-
-	printf("FD %s, Mode=%s, TraceLevel=%d, Media=%s/%s, Auto=%s",
-		fmtenable(pCfg->fdenable), FDModeName[pCfg->fdmode], 
-		pCfg->fdtrace,
-		FDMediaName[pCfg->fdmedia], FDMediaName[pCfg->fdmediaalt],
-		fmtbool(pCfg->fdmauto));
-	pager();
-	printf("IDE %s, Mode=%s, TraceLevel=%d, 8bit=%s, Size=%dMB",
-		fmtenable(pCfg->ideenable), IDEModeName[pCfg->idemode],
-		pCfg->idetrace, fmtbool(pCfg->ide8bit), pCfg->idecapacity);
-	pager();
-	printf("PPIDE %s, Mode=%s, TraceLevel=%d, 8bit=%s, Slow=%s, Size=%dMB",
-		fmtenable(pCfg->ppideenable), IDEModeName[pCfg->ppidemode],
-		pCfg->ppidetrace, fmtbool(pCfg->ppide8bit), 
-		fmtbool(pCfg->ppideslow), pCfg->ppidecapacity);
-	pager();
-	printf("PRP %s, SD %s, TraceLevel=%d, Size=%dMB, Console %s",
-		fmtenable(pCfg->prpenable), fmtenable(pCfg->prpsdenable), 
-		pCfg->prpsdtrace, pCfg->prpsdcapacity,
-		fmtenable(pCfg->prpconenable));
-	pager();
-	printf("PPP %s, SD %s, TraceLevel=%d, Size=%dMB, Console %s",
-		fmtenable(pCfg->pppenable), fmtenable(pCfg->pppsdenable), 
-		pCfg->pppsdtrace, pCfg->pppsdcapacity,
-		fmtenable(pCfg->pppconenable));
-	pager();
-	printf("HDSK %s, TraceLevel=%d, Size=%dMB",
-		fmtenable(pCfg->hdskenable),
-		pCfg->hdsktrace, pCfg->hdskcapacity);
-	pager();
-	pager();
-	
-	printf("PPK %s, TraceLevel=%d",
-		fmtenable(pCfg->ppkenable), pCfg->ppktrace);
-	pager();
-	printf("KBD %s, TraceLevel=%d",
-		fmtenable(pCfg->kbdenable), pCfg->kbdtrace);
-	pager();
-	pager();
-	
-	printf("TTY %s", fmtenable(pCfg->ttyenable));
-	pager();
-	printf("ANSI %s, TraceLevel=%d",
-		fmtenable(pCfg->ansienable), pCfg->ansitrace);
-	pager();
-}
-
-
-/********************/
-/* eof - cnamecp1.c */
-/********************/
-
\ No newline at end of file
diff --git a/Apps/Source/cnfgdata.h b/Apps/Source/cnfgdata.h
index ae45936d..c718e251 100644
--- a/Apps/Source/cnfgdata.h
+++ b/Apps/Source/cnfgdata.h
@@ -51,7 +51,10 @@ struct CNFGDATA {
 	unsigned char uartenable;
 	unsigned char uartfifo;
 	unsigned char uartafc;
-	unsigned int baudrate;
+	
+	unsigned char ascienable;
+	
+	unsigned int baudrate;			/* actual baudrate / 10 */
 	
 	unsigned char vduenable;
 
diff --git a/Apps/Source/cpmname.c b/Apps/Source/cpmname.c
index 3d48ae18..33ddc1c5 100644
--- a/Apps/Source/cpmname.c
+++ b/Apps/Source/cpmname.c
@@ -1,11 +1,5 @@
 /* cpmname.c 5/21/2012 dwg - */
 
-#include "stdio.h"
-#include "stdlib.h"
-#include "portab.h"
-#include "memory.h"
-#include "globals.h"
-#include "cpmbind.h"
 #include "applvers.h"
 #include "infolist.h"
 #include "cnfgdata.h"
@@ -13,22 +7,39 @@
 #include "diagnose.h"
 #include "std.h"
 
-#define HIGHSEG 0x0C000		/* memory address of system  config  */
-
-#define GETSYSCFG 0x0F000	/* HBIOS function for Get System Configuration */
-
-extern cnamept1();
-
-int line = 1;
+#define HIGHSEG 0xC000		/* memory address of system config  */
+
+#define GETSYSCFG 0xF000	/* HBIOS function for Get System Configuration */
+
+char None[] = "*None*";
+char * PltName[] = {None, "N8VEM Z80", "ZETA Z80", "N8 Z180"};
+char * CIOName[] = {"UART", "ASCI", "VDU", "CVDU", "UPD7220", 
+			"N8V", "PRPCON", "PPPCON", "CRT", "BAT", "NUL"};
+char * DIOName[] = {"MD", "FD", "IDE", "ATAPI", "PPIDE",
+			"SD", "PRPSD", "PPPSD", "HDSK"};
+char * VDAName[] = {None, "VDU", "CVDU", "UPD7220", "N8V"};
+char * EmuName[] = {None, "TTY", "ANSI"};
+char * TermName[] = {"TTY", "ANSI", "WYSE", "VT52"};
+char * DiskMapName[] = {None, "ROM", "RAM", "FD", "IDE", 
+			"PPIDE", "SD", "PRPSD", "PPPSD", "HDSK"};
+char * ClrRamName[] = {"Never", "Auto", "Always"};
+char * FDModeName[] = {None, "DIO", "ZETA", "DIDE", "N8", "DIO3"};
+char * FDMediaName[] = {"720K", "1.44M", "360K", "1.2M", "1.11M"};
+char * IDEModeName[] = {None, "DIO", "DIDE"};
+
+char hexchar(val, bitoff)
+{
+	static char hexmap[] = "0123456789ABCDEF";
 
-char hexmap[] = "0123456789ABCDEF";
+	return hexmap[(val >> bitoff) & 0xF];
+}
 
 char * fmthexbyte(val, buf)
 	unsigned char val;
 	char * buf;
 {
-	buf[0] = hexmap[(val >> 4) & 0xF];
-	buf[1] = hexmap[(val >> 0) & 0xF];
+	buf[0] = hexchar(val, 4);
+	buf[1] = hexchar(val, 0);
 	buf[2] = '\0';
 	
 	return buf;
@@ -38,12 +49,10 @@ char * fmthexword(val, buf)
 	unsigned int val;
 	char * buf;
 {
-	buf[0] = hexmap[(val >> 12) & 0xF];
-	buf[1] = hexmap[(val >> 8) & 0xF];
-	buf[2] = hexmap[(val >> 4) & 0xF];
-	buf[3] = hexmap[(val >> 0) & 0xF];
-	buf[4] = '\0';
-	
+	buf[0] = hexchar(val, 12);
+	buf[1] = hexchar(val, 8);
+	fmthexbyte(val, buf + 2);
+
 	return buf;
 }
 
@@ -68,6 +77,7 @@ putscpm(p)
 
 pager()
 {
+	static int line = 1;
 	int i;
 
 	line++;
@@ -84,36 +94,155 @@ pager()
 	}
 }
 
+prtcfg(pSysCfg)
+	struct SYSCFG * pSysCfg;
+{
+	struct CNFGDATA * pCfg;
+	char buf[5];
+	char buf2[5];
+	
+	pCfg = &(pSysCfg->cnfgdata);
+
+	printf("%s @ %dMHz, RAM=%dMB, ROM=%dMB", 
+		PltName[pCfg->platform], 
+		pCfg->freq,
+		pCfg->ramsize,
+		pCfg->romsize);
+	pager();
+	printf("RomWBW Version %d.%d.%d.%d, ", 
+		pCfg->rmj, pCfg->rmn,
+		pCfg->rup, pCfg->rtp);
+	putscpm((unsigned int)pSysCfg + (unsigned int)pSysCfg->tstloc);
+	pager();
+	if (pCfg->diskboot)
+		printf("Disk Boot Device=%s, Unit=%d, LU=%d",
+			DIOName[pCfg->devunit >> 4],
+			pCfg->devunit & 0xF, pCfg->bootlu);
+	else
+		printf("ROM Boot");
+	pager();
+	pager();
+	
+	printf("Default Console: %s, Alternate Console: %s",
+		CIOName[pCfg->defcon], CIOName[pCfg->altcon]);
+	pager();
+	printf ("Default Video Display: %s, Default Emulation: %s",
+		VDAName[pCfg->defvda], EmuName[pCfg->defemu]);
+	pager();
+	printf ("Current Terminal Type: %s",
+		TermName[pCfg->termtype]);
+	pager();
+	
+	printf("Default IO Byte=0x%s, Alternate IO Byte=0x%s",
+		fmthexbyte(pCfg->defiobyte, buf),
+		fmthexbyte(pCfg->altiobyte, buf2));
+	pager();
+	printf("Disk Write Caching=%s, Disk IO Tracing=%s",
+		fmtbool(pCfg->wrtcache), fmtbool(pCfg->dsktrace));
+	pager();
+	printf("Disk Mapping Priority: %s, Clear RAM Disk: %s",
+		DiskMapName[pCfg->dskmap], ClrRamName[pCfg->clrramdsk]);
+	pager();
+	pager();
+	
+	printf("DSKY %s", fmtenable(pCfg->dskyenable));
+	pager();
+	printf("UART %s, FIFO=%s, AFC=%s, Baudrate=%d0",
+		fmtenable(pCfg->uartenable), fmtbool(pCfg->uartfifo),
+		fmtbool(pCfg->uartafc), 	pCfg->baudrate);
+	pager();
+	printf("ASCI %s, Baudrate=%d0", 
+		fmtenable(pCfg->ascienable), pCfg->baudrate);
+	pager();
+	printf("VDU %s", fmtenable(pCfg->vduenable));
+	pager();
+	printf("CVDU %s", fmtenable(pCfg->cvduenable));
+	pager();
+	printf("UPD7220 %s", fmtenable(pCfg->upd7220enable));
+	pager();
+	printf("N8V %s", fmtenable(pCfg->n8venable));
+	pager();
+	pager();
+
+	printf("FD %s, Mode=%s, TraceLevel=%d, Media=%s/%s, Auto=%s",
+		fmtenable(pCfg->fdenable), FDModeName[pCfg->fdmode], 
+		pCfg->fdtrace,
+		FDMediaName[pCfg->fdmedia], FDMediaName[pCfg->fdmediaalt],
+		fmtbool(pCfg->fdmauto));
+	pager();
+	printf("IDE %s, Mode=%s, TraceLevel=%d, 8bit=%s, Size=%dMB",
+		fmtenable(pCfg->ideenable), IDEModeName[pCfg->idemode],
+		pCfg->idetrace, fmtbool(pCfg->ide8bit), pCfg->idecapacity);
+	pager();
+	printf("PPIDE %s, Mode=%s, TraceLevel=%d, 8bit=%s, Slow=%s, Size=%dMB",
+		fmtenable(pCfg->ppideenable), IDEModeName[pCfg->ppidemode],
+		pCfg->ppidetrace, fmtbool(pCfg->ppide8bit), 
+		fmtbool(pCfg->ppideslow), pCfg->ppidecapacity);
+	pager();
+	printf("PRP %s, SD %s, TraceLevel=%d, Size=%dMB, Console %s",
+		fmtenable(pCfg->prpenable), fmtenable(pCfg->prpsdenable), 
+		pCfg->prpsdtrace, pCfg->prpsdcapacity,
+		fmtenable(pCfg->prpconenable));
+	pager();
+	printf("PPP %s, SD %s, TraceLevel=%d, Size=%dMB, Console %s",
+		fmtenable(pCfg->pppenable), fmtenable(pCfg->pppsdenable), 
+		pCfg->pppsdtrace, pCfg->pppsdcapacity,
+		fmtenable(pCfg->pppconenable));
+	pager();
+	printf("HDSK %s, TraceLevel=%d, Size=%dMB",
+		fmtenable(pCfg->hdskenable),
+		pCfg->hdsktrace, pCfg->hdskcapacity);
+	pager();
+	pager();
+	
+	printf("PPK %s, TraceLevel=%d",
+		fmtenable(pCfg->ppkenable), pCfg->ppktrace);
+	pager();
+	printf("KBD %s, TraceLevel=%d",
+		fmtenable(pCfg->kbdenable), pCfg->kbdtrace);
+	pager();
+	pager();
+	
+	printf("TTY %s", fmtenable(pCfg->ttyenable));
+	pager();
+	printf("ANSI %s, TraceLevel=%d",
+		fmtenable(pCfg->ansienable), pCfg->ansitrace);
+	pager();
+}
+
 int main(argc,argv)
 	int argc;
 	char *argv[];
 {
-	hregbc = GETSYSCFG;				/* function = Get System Config      */
-	hregde = HIGHSEG;				/* addr of dest (must be high)       */
-	diagnose();						/* invoke the HBIOS function         */
-	
+	struct INFOLIST * pInfoList;
+	struct SYSCFG * pSysCfg;
+
 	printf("CPMNAME.COM %d/%d/%d v%d.%d.%d (%d)",
 		A_MONTH,A_DAY,A_YEAR,A_RMJ,A_RMN,A_RUP,A_RTP);
 	printf(" dwg - Display System Configuration");
 	pager();
 	pager();
-			
-	ireghl = pGETINFO;
-	bioscall();
-	pINFOLIST = ireghl;
 	
-	putscpm(pINFOLIST->banptr);
+	pInfoList = bioshl(20, 0, 0);
+	
+	putscpm(pInfoList->banptr);
 	pager();
 	pager();
 
-	hregbc = 0xF000;
-	hregde = HIGHSEG;	
-	diagnose();
-
-	cnamept1(HIGHSEG);
+	pSysCfg = HIGHSEG;
+	hregbc = GETSYSCFG;				/* function = Get System Config      */
+	hregde = pSysCfg;				/* addr of dest (must be high)       */
+	diagnose();						/* invoke the HBIOS function         */
+	
+	if (pSysCfg->marker != CFGMARKER)
+	{
+		printf("*** Invalid configuration data ***\r\n");
+		return;
+	}
+	
+	prtcfg(pSysCfg);
 }
 
 /********************/
 /* eof - ccpmname.c */
 /********************/
-
\ No newline at end of file
diff --git a/Apps/Source/syscfg.h b/Apps/Source/syscfg.h
index 4d8810af..6cc89275 100644
--- a/Apps/Source/syscfg.h
+++ b/Apps/Source/syscfg.h
@@ -1,13 +1,7 @@
 /* syscfg.h 5/23/2012 dwg - declarations for the syscfg block */
 
-struct JMP_TAG {
-	unsigned char opcode;
-	unsigned int address;
-};
-
-
 struct SYSCFG {
-	struct JMP_TAG jmp;
+	unsigned int marker;
 	void * cnfloc;
 	void * tstloc;
 	void * varloc;
@@ -16,6 +10,7 @@ struct SYSCFG {
 	char filler[256-3-2-2-2-sizeof(struct CNFGDATA)];	
 };
 
+#define CFGMARKER	0xA33A
 
 /******************/
 /* eof - syscfg.h */
diff --git a/Source/asci.asm b/Source/asci.asm
new file mode 100644
index 00000000..437e2470
--- /dev/null
+++ b/Source/asci.asm
@@ -0,0 +1,187 @@
+;
+;==================================================================================================
+; ASCI DRIVER (Z180 SERIAL PORTS)
+;==================================================================================================
+;
+; CHARACTER DEVICE DRIVER ENTRY
+;   A: RESULT (OUT), CF=ERR
+;   B: FUNCTION (IN)
+;   C: CHARACTER (IN/OUT)
+;   E: DEVICE/UNIT (IN)
+;
+;
+ASCI_DISPATCH:
+	LD	A,C	; GET DEVICE/UNIT
+	AND	$0F	; ISOLATE UNIT
+	JP	Z,ASCI0
+	DEC	A
+	JP	Z,ASCI1
+	CALL	PANIC
+;
+ASCI0:
+	LD	A,B	; GET REQUESTED FUNCTION
+	AND	$0F	; ISOLATE SUB-FUNCTION
+	JP	Z,ASCI0_IN
+	DEC	A
+	JP	Z,ASCI0_OUT
+	DEC	A
+	JP	Z,ASCI0_IST
+	DEC	A
+	JP	Z,ASCI0_OST
+	CALL	PANIC
+;
+;
+;
+ASCI_INIT:
+	; ASCI0
+	PRTS("ASCI0: IO=0x$")
+	LD	A,CPU_TDR0
+	CALL	PRTHEXBYTE
+	CALL	PC_COMMA
+	LD	A,CPU_RDR0
+	CALL	PRTHEXBYTE
+	PRTS(" BAUD=$")
+	LD	HL,BAUDRATE / 10
+	CALL	PRTDEC
+	PRTC('0')
+
+	LD	A,66H
+	OUT0	(CPU_ASEXT0),A
+	LD	A,64H
+	OUT0	(CPU_CNTLA0),A
+	LD	A,Z180_CNTLB0
+	OUT0	(CPU_CNTLB0),A
+
+	; ASCI1
+	CALL	NEWLINE
+	PRTS("ASCI1: IO=0x$")
+	LD	A,CPU_TDR1
+	CALL	PRTHEXBYTE
+	CALL	PC_COMMA
+	LD	A,CPU_RDR1
+	CALL	PRTHEXBYTE
+	PRTS(" BAUD=$")
+	LD	HL,BAUDRATE / 10
+	CALL	PRTDEC
+	PRTC('0')
+
+	LD	A,66H
+	OUT0	(CPU_ASEXT1),A
+	LD	A,64H
+	OUT0	(CPU_CNTLA1),A
+	LD	A,Z180_CNTLB1
+	OUT0	(CPU_CNTLB1),A
+	RET
+;
+;
+;
+ASCI0_IN:
+	CALL	ASCI0_IST
+	OR	A
+	JR	Z,ASCI0_IN
+	IN0	A,(CPU_RDR0)	; READ THE CHAR FROM THE ASCI
+	LD	E,A
+	RET
+;
+;
+;
+ASCI0_IST:
+	; CHECK FOR ERROR FLAGS
+	IN0	A,(CPU_STAT0)
+	AND	70H			; PARITY, FRAMING, OR OVERRUN ERROR
+	JR	Z,ASCI0_IST1		; ALL IS WELL, CHECK FOR DATA
+
+	; CLEAR ERROR(S) OR NOTHING FURTHER CAN BE RECEIVED!!!
+	IN0	A,(CPU_CNTLA0)
+	RES	3,A			; CLEAR EFR (ERROR FLAG RESET)
+	OUT0	(CPU_CNTLA0),A
+
+ASCI0_IST1:	; CHECK FOR STAT0.RDRF (DATA READY)
+	IN0	A,(CPU_STAT0)		; READ LINE STATUS REGISTER
+	AND	$80			; TEST IF DATA IN RECEIVE BUFFER
+	JP	Z,CIO_IDLE		; DO IDLE PROCESSING AND RETURN
+	XOR	A
+	INC	A			; SIGNAL CHAR READY, A = 1
+	RET
+;
+;
+;
+ASCI0_OUT:
+	CALL	ASCI0_OST
+	OR	A
+	JR	Z,ASCI0_OUT
+	LD	A,E
+	OUT0	(CPU_TDR0),A
+	RET
+;
+ASCI0_OST:
+	IN0	A,(CPU_STAT0)
+	AND	$02
+	JP	Z,CIO_IDLE		; DO IDLE PROCESSING AND RETURN
+	XOR	A
+	INC	A			; SIGNAL BUFFER EMPTY, A = 1
+	RET
+;
+;
+;
+ASCI1:
+	LD	A,B	; GET REQUESTED FUNCTION
+	AND	$0F	; ISOLATE SUB-FUNCTION
+	JR	Z,ASCI0_IN
+	DEC	A
+	JR	Z,ASCI0_OUT
+	DEC	A
+	JR	Z,ASCI0_IST
+	DEC	A
+	JR	Z,ASCI0_OST
+	CALL	PANIC
+;
+;
+;
+ASCI1_IN:
+	CALL	ASCI1_IST
+	OR	A
+	JR	Z,ASCI1_IN
+	IN0	A,(CPU_RDR1)	; READ THE CHAR FROM THE ASCI
+	LD	E,A
+	RET
+;
+;
+;
+ASCI1_IST:
+	; CHECK FOR ERROR FLAGS
+	IN0	A,(CPU_STAT1)
+	AND	70H			; PARITY, FRAMING, OR OVERRUN ERROR
+	JR	Z,ASCI1_IST1		; ALL IS WELL, CHECK FOR DATA
+
+	; CLEAR ERROR(S) OR NOTHING FURTHER CAN BE RECEIVED!!!
+	IN0	A,(CPU_CNTLA1)
+	RES	3,A			; CLEAR EFR (ERROR FLAG RESET)
+	OUT0	(CPU_CNTLA1),A
+
+ASCI1_IST1:	; CHECK FOR STAT0.RDRF (DATA READY)
+	IN0	A,(CPU_STAT1)		; READ LINE STATUS REGISTER
+	AND	$80			; TEST IF DATA IN RECEIVE BUFFER
+	JP	Z,CIO_IDLE		; DO IDLE PROCESSING AND RETURN
+	XOR	A
+	INC	A			; SIGNAL CHAR READY, A = 1
+	RET
+;
+;
+;
+ASCI1_OUT:
+	CALL	ASCI1_OST
+	OR	A
+	JR	Z,ASCI1_OUT
+	LD	A,E
+	OUT0	(CPU_TDR1),A
+	RET
+;
+ASCI1_OST:
+	IN0	A,(CPU_STAT1)
+	AND	$02
+	JR	Z,ASCI1_OST
+	JP	Z,CIO_IDLE		; DO IDLE PROCESSING AND RETURN
+	XOR	A
+	INC	A			; SIGNAL BUFFER EMPTY, A = 1
+	RET
diff --git a/Source/cbios.asm b/Source/cbios.asm
index 0f4d6a95..a63a280c 100644
--- a/Source/cbios.asm
+++ b/Source/cbios.asm
@@ -1933,21 +1933,27 @@ DSK_CNT	.EQU	DPH_CNT
 ;
 ;	MAP LOGICAL TO PHYSICAL DEVICES
 ;
-LD_TTY	.EQU	CIODEV_UART
+#IF (PLATFORM == PLT_N8)
+TTYDEV	.EQU	CIODEV_ASCI
+#ELSE
+TTYDEV	.EQU	CIODEV_UART
+#ENDIF
+;
+LD_TTY	.EQU	TTYDEV
 LD_CRT	.EQU	CIODEV_CRT
 LD_BAT	.EQU	CIODEV_BAT
-LD_UC1	.EQU	CIODEV_UART
-LD_PTR	.EQU	CIODEV_UART
-LD_UR1	.EQU	CIODEV_UART
-LD_UR2	.EQU	CIODEV_UART
-LD_PTP	.EQU	CIODEV_UART
-LD_UP1	.EQU	CIODEV_UART
-LD_UP2	.EQU	CIODEV_UART
-LD_LPT	.EQU	CIODEV_UART
-LD_UL1	.EQU	CIODEV_UART
+LD_UC1	.EQU	TTYDEV
+LD_PTR	.EQU	TTYDEV
+LD_UR1	.EQU	TTYDEV
+LD_UR2	.EQU	TTYDEV
+LD_PTP	.EQU	TTYDEV
+LD_UP1	.EQU	TTYDEV
+LD_UP2	.EQU	TTYDEV
+LD_LPT	.EQU	TTYDEV
+LD_UL1	.EQU	TTYDEV
 ;
 #IF (PLATFORM == PLT_N8)
-LD_UC1	.SET	CIODEV_UART + 1
+LD_UC1	.SET	CIODEV_ASCI + 1
 #ENDIF
 ;
 #IF (VDUENABLE)
diff --git a/Source/config_n8_2312.asm b/Source/config_n8_2312.asm
index 9cfbc71f..b4ca1ba1 100644
--- a/Source/config_n8_2312.asm
+++ b/Source/config_n8_2312.asm
@@ -7,7 +7,7 @@
 ;
 CPUFREQ		.EQU	20		; IN MHZ, USED TO COMPUTE DELAY FACTORS
 ;
-DEFCON		.EQU	CIODEV_UART	; DEFAULT CONSOLE DEVICE (LOADER AND MONITOR): CIODEV_UART, DIODEV_CRT, CIODEV_PRPCON, CIODEV_PPPCON
+DEFCON		.EQU	CIODEV_ASCI	; DEFAULT CONSOLE DEVICE (LOADER AND MONITOR): CIODEV_UART, DIODEV_CRT, CIODEV_PRPCON, CIODEV_PPPCON
 ALTCON		.EQU	DEFCON		; ALT CONSOLE DEVICE (USED WHEN CONFIG JUMPER SHORTED)
 DEFVDA		.EQU	VDADEV_N8V	; DEFAULT VDA DEVICE (VDADEV_NONE, VDADEV_VDU, VDADEV_CVDU, VDADEV_N8V, VDADEV_UPD7220)
 DEFEMU		.EQU	EMUTYP_ANSI	; DEFAULT VDA EMULATION (EMUTYP_TTY, EMUTYP_ANSI, ...)
@@ -19,10 +19,12 @@ DSKMAP		.EQU	DM_RAM		; DM_ROM, DM_RAM, DM_FD, DM_IDE, DM_PPIDE, DM_SD, DM_PRPSD,
 ;
 DSKYENABLE	.EQU	FALSE		; TRUE FOR DSKY SUPPORT (DO NOT COMBINE WITH PPIDE)
 ;
-UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRUE)
+UARTENABLE	.EQU	FALSE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRUE)
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	TRUE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8_2511.asm b/Source/config_n8_2511.asm
index 2ed68cea..d68b57d8 100644
--- a/Source/config_n8_2511.asm
+++ b/Source/config_n8_2511.asm
@@ -7,7 +7,7 @@
 ;
 CPUFREQ		.EQU	20		; IN MHZ, USED TO COMPUTE DELAY FACTORS
 ;
-DEFCON		.EQU	CIODEV_UART	; DEFAULT CONSOLE DEVICE (LOADER AND MONITOR): CIODEV_UART, DIODEV_CRT, CIODEV_PRPCON, CIODEV_PPPCON
+DEFCON		.EQU	CIODEV_ASCI	; DEFAULT CONSOLE DEVICE (LOADER AND MONITOR): CIODEV_UART, DIODEV_CRT, CIODEV_PRPCON, CIODEV_PPPCON
 ALTCON		.EQU	DEFCON		; ALT CONSOLE DEVICE (USED WHEN CONFIG JUMPER SHORTED)
 DEFVDA		.EQU	VDADEV_N8V	; DEFAULT VDA DEVICE (VDADEV_NONE, VDADEV_VDU, VDADEV_CVDU, VDADEV_N8V, VDADEV_UPD7220)
 DEFEMU		.EQU	EMUTYP_ANSI	; DEFAULT VDA EMULATION (EMUTYP_TTY, EMUTYP_ANSI, ...)
@@ -19,10 +19,12 @@ DSKMAP		.EQU	DM_RAM		; DM_ROM, DM_RAM, DM_FD, DM_IDE, DM_PPIDE, DM_SD, DM_PRPSD,
 ;
 DSKYENABLE	.EQU	FALSE		; TRUE FOR DSKY SUPPORT (DO NOT COMBINE WITH PPIDE)
 ;
-UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRUE)
+UARTENABLE	.EQU	FALSE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRUE)
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	TRUE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_cvdu.asm b/Source/config_n8vem_cvdu.asm
index ea465188..3e8a6d0e 100644
--- a/Source/config_n8vem_cvdu.asm
+++ b/Source/config_n8vem_cvdu.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	TRUE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_dide.asm b/Source/config_n8vem_dide.asm
index 1a9ea4c6..3634ca46 100644
--- a/Source/config_n8vem_dide.asm
+++ b/Source/config_n8vem_dide.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_diskio.asm b/Source/config_n8vem_diskio.asm
index 28970e9e..826393a7 100644
--- a/Source/config_n8vem_diskio.asm
+++ b/Source/config_n8vem_diskio.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_diskio3.asm b/Source/config_n8vem_diskio3.asm
index 79807bdf..6a21533b 100644
--- a/Source/config_n8vem_diskio3.asm
+++ b/Source/config_n8vem_diskio3.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_dsd.asm b/Source/config_n8vem_dsd.asm
index a49276a7..47185fbd 100644
--- a/Source/config_n8vem_dsd.asm
+++ b/Source/config_n8vem_dsd.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_ppide.asm b/Source/config_n8vem_ppide.asm
index c4d8d2f2..2db6e78f 100644
--- a/Source/config_n8vem_ppide.asm
+++ b/Source/config_n8vem_ppide.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_ppisd.asm b/Source/config_n8vem_ppisd.asm
index f933e38c..e84462e4 100644
--- a/Source/config_n8vem_ppisd.asm
+++ b/Source/config_n8vem_ppisd.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_propio.asm b/Source/config_n8vem_propio.asm
index b0389668..695243ae 100644
--- a/Source/config_n8vem_propio.asm
+++ b/Source/config_n8vem_propio.asm
@@ -24,6 +24,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_simh.asm b/Source/config_n8vem_simh.asm
index 9db9dbfc..49f2b365 100644
--- a/Source/config_n8vem_simh.asm
+++ b/Source/config_n8vem_simh.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	FALSE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_std.asm b/Source/config_n8vem_std.asm
index 5a43372f..d492a0ac 100644
--- a/Source/config_n8vem_std.asm
+++ b/Source/config_n8vem_std.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_n8vem_vdu.asm b/Source/config_n8vem_vdu.asm
index 9a9318c9..8eec43ce 100644
--- a/Source/config_n8vem_vdu.asm
+++ b/Source/config_n8vem_vdu.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	TRUE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_zeta_ppp.asm b/Source/config_zeta_ppp.asm
index 16720ea6..f9bab853 100644
--- a/Source/config_zeta_ppp.asm
+++ b/Source/config_zeta_ppp.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/config_zeta_std.asm b/Source/config_zeta_std.asm
index 2ff1ba59..f5b52f1d 100644
--- a/Source/config_zeta_std.asm
+++ b/Source/config_zeta_std.asm
@@ -23,6 +23,8 @@ UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRU
 UARTFIFO	.EQU	TRUE		; TRUE ENABLES UART FIFO (16550 ASSUMED, N8VEM AND ZETA ONLY)
 UARTAFC		.EQU	FALSE		; TRUE ENABLES AUTO FLOW CONTROL (YOUR TERMINAL/UART MUST SUPPORT RTS/CTS FLOW CONTROL!!!)
 ;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+;
 VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
 CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
 UPD7220ENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
diff --git a/Source/hbios.asm b/Source/hbios.asm
index f097ec3f..79b6d5e7 100644
--- a/Source/hbios.asm
+++ b/Source/hbios.asm
@@ -15,6 +15,12 @@
 ;
 #INCLUDE "std.asm"
 ;
+#IF (PLATFORM == PLT_N8)
+BOOTCON		.EQU	CIODEV_ASCI
+#ELSE
+BOOTCON		.EQU	CIODEV_UART
+#ENDIF
+;
 ;==================================================================================================
 ;   SYSTEM INITIALIZATION
 ;==================================================================================================
@@ -46,10 +52,10 @@ INITSYS:
 	LD	BC,HB_SIZ	; SIZE
 	LDIR			; DO THE COPY
 ;
-; DURING INITIALIZATION, CONSOLE IS UART!
+; DURING INITIALIZATION, CONSOLE IS ALWAYS PRIMARY SERIAL PORT
 ; POST-INITIALIZATION, WILL BE SWITCHED TO USER CONFIGURED CONSOLE
 ;
-	LD	A,CIODEV_UART
+	LD	A,BOOTCON
 	LD	(CONDEV),A
 ;
 ; PERFORM DEVICE INITIALIZATION
@@ -107,6 +113,9 @@ HB_INITTBL:
 #IF (UARTENABLE)
 	.DW	UART_INIT
 #ENDIF
+#IF (ASCIENABLE)
+	.DW	ASCI_INIT
+#ENDIF
 #IF (VDUENABLE)
 	.DW	VDU_INIT
 #ENDIF
@@ -219,6 +228,10 @@ CIO_DISPATCH:
 	CP	CIODEV_UART
 	JP	Z,UART_DISPATCH
 #ENDIF
+#IF (ASCIENABLE)
+	CP	CIODEV_ASCI
+	JP	Z,ASCI_DISPATCH
+#ENDIF
 #IF (PRPENABLE & PRPCONENABLE)
 	CP	CIODEV_PRPCON
 	JP	Z,PRPCON_DISPATCH
@@ -603,6 +616,15 @@ SIZ_UART	.EQU	$ - ORG_UART
 		.ECHO	" bytes.\n"
 #ENDIF
 ;
+#IF (ASCIENABLE)
+ORG_ASCI	.EQU	$
+  #INCLUDE "asci.asm"
+SIZ_ASCI	.EQU	$ - ORG_ASCI
+		.ECHO	"ASCI occupies "
+		.ECHO	SIZ_ASCI
+		.ECHO	" bytes.\n"
+#ENDIF
+;
 #IF (VDUENABLE)
 ORG_VDU		.EQU	$
   #INCLUDE "vdu.asm"
@@ -746,7 +768,7 @@ SIZ_ANSI	.EQU	$ - ORG_ANSI
 ;   HBIOS GLOBAL DATA
 ;==================================================================================================
 ;
-CONDEV		.DB	CIODEV_UART
+CONDEV		.DB	BOOTCON
 ;
 IDLECOUNT	.DB	0
 ;
diff --git a/Source/loader.asm b/Source/loader.asm
index cfec2ed8..1eda572e 100644
--- a/Source/loader.asm
+++ b/Source/loader.asm
@@ -67,7 +67,7 @@ DB_BOOTLOOP:
 ;
 ; CHECK FOR CONSOLE BOOT KEYPRESS
 ;
-#IF (UARTENABLE | VDUENABLE | (PRPENABLE & PRPCONENABLE) | (PPPENABLE & PPPCONENABLE))
+#IF (UARTENABLE | ASCIENABLE | VDUENABLE | (PRPENABLE & PRPCONENABLE) | (PPPENABLE & PPPCONENABLE))
 	CALL	CST
 	OR	A
 	JR	Z,DB_CONEND
@@ -75,7 +75,7 @@ DB_BOOTLOOP:
 	CP	'S'			; SETUP
 	JR	Z,GOSETUP
 	CP	'M'			; MONITOR
-	JR	Z,GOMONUART
+	JR	Z,GOMON
 	CP	'R'			; ROM BOOT
 	JR	Z,GOROM
 	CP	'A'			; A-P, DISK BOOT
@@ -130,7 +130,7 @@ DB_DSKYEND:
 	; TIMEOUT EXPIRED, PERFORM DEFAULT BOOT ACTION
 	LD	A,BOOT_DEFAULT
 	CP	'M'			; MONITOR
-	JR	Z,GOMONUART
+	JR	Z,GOMON
 	CP	'R'			; ROM BOOT
 	JR	Z,GOROM
 	CP	'A'			; A-P, DISK BOOT
@@ -155,10 +155,10 @@ GOSETUP:
 	CALL	WRITESTR
 	JP	DOSETUPMENU
 ;
-GOMONUART:
+GOMON:
 	LD	DE,STR_BOOTMON
 	CALL	WRITESTR
-	JP	MON_UART
+	JP	MON_SERIAL
 ;
 GOMONDSKY:
 	LD	DE,STR_BOOTMON
diff --git a/Source/std.asm b/Source/std.asm
index 37e02168..d944ce43 100644
--- a/Source/std.asm
+++ b/Source/std.asm
@@ -309,7 +309,7 @@ MON_LOC		.EQU	0C000H			; LOCATION OF MONITOR FOR RUNNING SYSTEM
 MON_SIZ		.EQU	01000H			; SIZE OF MONITOR BINARY IMAGE
 MON_END		.EQU	MON_LOC + MON_SIZ
 MON_DSKY	.EQU	MON_LOC			; MONITOR ENTRY (DSKY)
-MON_UART	.EQU	MON_LOC + 3		; MONITOR ENTRY (UART)
+MON_SERIAL	.EQU	MON_LOC + 3		; MONITOR ENTRY (SERIAL PORT)
 ;
 CBIOS_BOOT	.EQU	CBIOS_LOC + 0
 CBIOS_WBOOT	.EQU	CBIOS_LOC + 3
diff --git a/Source/syscfg.asm b/Source/syscfg.asm
index f7462616..af8616cd 100644
--- a/Source/syscfg.asm
+++ b/Source/syscfg.asm
@@ -6,9 +6,9 @@
 ;
 #INCLUDE "std.asm"
 ;
-	.ORG	0		; ALL ADDRESSES GENERATED WILL BE ZERO BASED
+	.ORG	0			; ALL ADDRESSES GENERATED WILL BE ZERO BASED
 ;
-	JP	0		; DUMMY JP INSTRUCTION FOR COMPATIBILITY
+		.DW	$A33A		; MARKER TO VERIFY START OF CONFIG DATA
 ;
 ; Reserved for Configuration Information
 ;
@@ -75,7 +75,10 @@ BOOTTIME	.DB	0,0,0,0,0,0	; SYSTEM STARTUP TIME (YY,MM,DD,HH,MM,SS)
 		.DB	UARTENABLE
 		.DB	UARTFIFO
 		.DB	UARTAFC
-		.DW	BAUDRATE
+		
+		.DB	ASCIENABLE
+		
+		.DW	BAUDRATE / 10
 		
 		.DB	VDUENABLE
 
diff --git a/Source/uart.asm b/Source/uart.asm
index 832dfd36..5acb1adb 100644
--- a/Source/uart.asm
+++ b/Source/uart.asm
@@ -3,9 +3,7 @@
 ; UART DRIVER (SERIAL PORT)
 ;==================================================================================================
 ;
-#IF (PLATFORM != PLT_N8)
 UART0_DIV	.EQU	(1843200 / (16 * BAUDRATE))
-#ENDIF
 ;
 ; CHARACTER DEVICE DRIVER ENTRY
 ;   A: RESULT (OUT), CF=ERR
@@ -15,16 +13,6 @@ UART0_DIV	.EQU	(1843200 / (16 * BAUDRATE))
 ;
 ;
 UART_DISPATCH:
-#IF (PLATFORM == PLT_N8)
-	LD	A,C	; GET DEVICE/UNIT
-	AND	$0F	; ISOLATE UNIT
-	JP	Z,UART0
-	DEC	A
-	JP	Z,UART1
-	CALL	PANIC
-#ENDIF
-;
-UART0:
 	LD	A,B	; GET REQUESTED FUNCTION
 	AND	$0F	; ISOLATE SUB-FUNCTION
 	JP	Z,UART0_IN
@@ -39,71 +27,13 @@ UART0:
 ;
 ;
 UART_INIT:
-#IF (PLATFORM == PLT_N8)
-	; ASCI0
-	PRTS("ASCI0: IO=0x$")
-	LD	A,CPU_TDR0
-	CALL	PRTHEXBYTE
-	CALL	PC_COMMA
-	LD	A,CPU_RDR0
-	CALL	PRTHEXBYTE
-	PRTS(" BAUD=$")
-#IF ((BAUDRATE / 100) > 0)
-	LD	HL,BAUDRATE / 100
-	CALL	PRTDEC
-#ENDIF
-#IF ((BAUDRATE % 100) < 10)
-	PRTC("0")
-#ENDIF
-	LD	HL,BAUDRATE % 100
-	CALL	PRTDEC
-
-	LD	A,66H
-	OUT0	(CPU_ASEXT0),A
-	LD	A,64H
-	OUT0	(CPU_CNTLA0),A
-	LD	A,Z180_CNTLB0
-	OUT0	(CPU_CNTLB0),A
-
-	; ASCI1
-	CALL	NEWLINE
-	PRTS("ASCI1: IO=0x$")
-	LD	A,CPU_TDR1
-	CALL	PRTHEXBYTE
-	CALL	PC_COMMA
-	LD	A,CPU_RDR1
-	CALL	PRTHEXBYTE
-	PRTS(" BAUD=$")
-#IF ((BAUDRATE / 100) > 0)
-	LD	HL,BAUDRATE / 100
-	CALL	PRTDEC
-#ENDIF
-#IF ((BAUDRATE % 100) < 10)
-	PRTC("0")
-#ENDIF
-	LD	HL,BAUDRATE % 100
-	CALL	PRTDEC
-
-	LD	A,66H
-	OUT0	(CPU_ASEXT1),A
-	LD	A,64H
-	OUT0	(CPU_CNTLA1),A
-	LD	A,Z180_CNTLB1
-	OUT0	(CPU_CNTLB1),A
-#ELSE
 	PRTS("UART0: IO=0x$")
 	LD	A,SIO_BASE
 	CALL	PRTHEXBYTE
 	PRTS(" BAUD=$")
-#IF ((BAUDRATE / 100) > 0)
-	LD	HL,BAUDRATE / 100
-	CALL	PRTDEC
-#ENDIF
-#IF ((BAUDRATE % 100) < 10)
-	PRTC("0")
-#ENDIF
-	LD	HL,BAUDRATE % 100
+	LD	HL,BAUDRATE / 10
 	CALL	PRTDEC
+	PRTC('0')
 	
 	LD	A,80H
 	OUT	(SIO_LCR),A		; DLAB ON
@@ -142,8 +72,6 @@ UART_AFC2:
 	LD	A,01H			; ENABLE AND RESET FIFOS
 	OUT	(SIO_FCR),A		; ENABLE FIFOS
 	PRTS(" FIFO$")
-#ENDIF
-
 #ENDIF
 	RET
 ;
@@ -153,35 +81,15 @@ UART0_IN:
 	CALL	UART0_IST
 	OR	A
 	JR	Z,UART0_IN
-#IF (PLATFORM == PLT_N8)
-	IN0	A,(CPU_RDR0)	; READ THE CHAR FROM THE UART
-#ELSE
 	IN	A,(SIO_RBR)	; READ THE CHAR FROM THE UART
-#ENDIF
 	LD	E,A
 	RET
 ;
 ;
 ;
 UART0_IST:
-#IF (PLATFORM == PLT_N8)
-	; CHECK FOR ERROR FLAGS
-	IN0	A,(CPU_STAT0)
-	AND	70H			; PARITY, FRAMING, OR OVERRUN ERROR
-	JR	Z,UART0_IST1		; ALL IS WELL, CHECK FOR DATA
-
-	; CLEAR ERROR(S) OR NOTHING FURTHER CAN BE RECEIVED!!!
-	IN0	A,(CPU_CNTLA0)
-	RES	3,A			; CLEAR EFR (ERROR FLAG RESET)
-	OUT0	(CPU_CNTLA0),A
-
-UART0_IST1:	; CHECK FOR STAT0.RDRF (DATA READY)
-	IN0	A,(CPU_STAT0)		; READ LINE STATUS REGISTER
-	AND	$80			; TEST IF DATA IN RECEIVE BUFFER
-#ELSE
 	IN	A,(SIO_LSR)		; READ LINE STATUS REGISTER
 	AND	$01			; TEST IF DATA IN RECEIVE BUFFER
-#ENDIF
 	JP	Z,CIO_IDLE		; DO IDLE PROCESSING AND RETURN
 	XOR	A
 	INC	A			; SIGNAL CHAR READY, A = 1
@@ -194,89 +102,13 @@ UART0_OUT:
 	OR	A
 	JR	Z,UART0_OUT
 	LD	A,E
-#IF (PLATFORM == PLT_N8)
-	OUT0	(CPU_TDR0),A
-#ELSE
 	OUT	(SIO_THR),A		; THEN WRITE THE CHAR TO UART
-#ENDIF
 	RET
 ;
 UART0_OST:
-#IF (PLATFORM == PLT_N8)
-	IN0	A,(CPU_STAT0)
-	AND	$02
-#ELSE
 	IN	A,(SIO_LSR)		; READ LINE STATUS REGISTER
 	AND	$20
-#ENDIF
-	JP	Z,CIO_IDLE		; DO IDLE PROCESSING AND RETURN
-	XOR	A
-	INC	A			; SIGNAL BUFFER EMPTY, A = 1
-	RET
-;
-;
-;
-#IF (PLATFORM == PLT_N8)
-;
-UART1:
-	LD	A,B	; GET REQUESTED FUNCTION
-	AND	$0F	; ISOLATE SUB-FUNCTION
-	JR	Z,UART0_IN
-	DEC	A
-	JR	Z,UART0_OUT
-	DEC	A
-	JR	Z,UART0_IST
-	DEC	A
-	JR	Z,UART0_OST
-	CALL	PANIC
-;
-;
-;
-UART1_IN:
-	CALL	UART1_IST
-	OR	A
-	JR	Z,UART1_IN
-	IN0	A,(CPU_RDR1)	; READ THE CHAR FROM THE UART
-	LD	E,A
-	RET
-;
-;
-;
-UART1_IST:
-	; CHECK FOR ERROR FLAGS
-	IN0	A,(CPU_STAT1)
-	AND	70H			; PARITY, FRAMING, OR OVERRUN ERROR
-	JR	Z,UART1_IST1		; ALL IS WELL, CHECK FOR DATA
-
-	; CLEAR ERROR(S) OR NOTHING FURTHER CAN BE RECEIVED!!!
-	IN0	A,(CPU_CNTLA1)
-	RES	3,A			; CLEAR EFR (ERROR FLAG RESET)
-	OUT0	(CPU_CNTLA1),A
-
-UART1_IST1:	; CHECK FOR STAT0.RDRF (DATA READY)
-	IN0	A,(CPU_STAT1)		; READ LINE STATUS REGISTER
-	AND	$80			; TEST IF DATA IN RECEIVE BUFFER
-	JP	Z,CIO_IDLE		; DO IDLE PROCESSING AND RETURN
-	XOR	A
-	INC	A			; SIGNAL CHAR READY, A = 1
-	RET
-;
-;
-;
-UART1_OUT:
-	CALL	UART1_OST
-	OR	A
-	JR	Z,UART1_OUT
-	LD	A,E
-	OUT0	(CPU_TDR1),A
-	RET
-;
-UART1_OST:
-	IN0	A,(CPU_STAT1)
-	AND	$02
-	JR	Z,UART1_OST
 	JP	Z,CIO_IDLE		; DO IDLE PROCESSING AND RETURN
 	XOR	A
 	INC	A			; SIGNAL BUFFER EMPTY, A = 1
 	RET
-#ENDIF
diff --git a/Source/ver.inc b/Source/ver.inc
index fec24389..7b6077bc 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -1,6 +1,6 @@
 #DEFINE	RMJ	2
 #DEFINE	RMN	5
 #DEFINE	RUP	0
-#DEFINE	RTP	9
-#DEFINE BIOSVER	"2.5 - Beta 9"
+#DEFINE	RTP	10
+#DEFINE BIOSVER	"2.5 - Beta 10"
 #DEFINE REVISION 412