diff --git a/Binary/RomList.txt b/Binary/RomList.txt
index 5131da59..6f17da80 100644
--- a/Binary/RomList.txt
+++ b/Binary/RomList.txt
@@ -32,6 +32,7 @@ image to use for each platform:
 	Mark IV		MK4_std.rom
 	RC2014		RC_std.rom
 	RC2014 w/ Z180	RC180_std.rom
+	Easy Z80	EZZ180_std.rom
 
 You will find there is one additional ROM image called 
 "UNA_std.rom". This ROM image is an UNA-based RomWBW ROM image.  As 
@@ -50,9 +51,12 @@ the UNA FAT loader for testing.
 All of the standard ROM Images are configured with:
  - 512KB ROM Disk
  - 512KB RAM Disk
- - 38.4Kbps baud serial console (RC2014 is determined by hardware)
+ - 38.4Kbps baud serial console (*)
  - Auto-discovery of all serial ports
 
+* RC2014 & Easy Z80 serial port speed is determined by hardware
+  and is typically 115,200 baud.
+
 All hard disk type devices (IDE, PPIDE, CF Card, SD Card) will be 
 automatically assigned two drive letters per device.  The drive 
 letters will refer to the first 2 slices of the device. The ASSIGN 
@@ -69,6 +73,7 @@ not detected at boot, the ROM will simply bypass support
 appropriately.
 
 SBC:
+ - CPU speed is detected at startup
  - Includes support for PPIDE/CF Card(s) connected to on-board    
    parallel port.
  - Includes support for CVDU and VGA3 boards.  If detected at
@@ -86,6 +91,7 @@ SBC:
    V2 does not have this issue.
 
 ZETA/ZETA2:
+ - CPU speed is detected at startup
  - Includes support for on-board floppy disk controller and
    two attached floppy disks.
  - Auto-detects ParPortProp and includes support for it if it
@@ -96,6 +102,7 @@ ZETA/ZETA2:
    ParPortProp video and keyboard ports.
 
 N8:
+ - CPU speed is detected at startup
  - Includes support for on-board floppy disk controller and
    two attached floppy disks.
  - Includes support for on-board TMS9918 video and keyboard
@@ -104,6 +111,7 @@ N8:
    assumes a production level N8 board (date code >= 2312).
 
 MK4:
+ - CPU speed is detected at startup
  - Includes support for on-board IDE port (CF Card via adapter).
  - Includes support for on-board SD Card port.
  - Auto-detects PropIO or PropIO V2 and installs associated
@@ -113,6 +121,7 @@ MK4:
    including VT-100/ANSI terminal emulation.
 
 RC2014:
+ - Assumes CPU oscillator of 7.3728 MHz
  - Requires 512K RAM/ROM module
  - Auto detects Serial I/O Module (ACIA) and Dual Serial
    Module (SIO/2).  Either one may be used.
@@ -123,6 +132,7 @@ RC2014:
    be enabled in config
 
 RC2014 w/ Z180:
+ - Assumes CPU oscillator of 18.432 MHz
  - Requires 512K RAM/ROM module
  - Console attached to Z180 onboard serial ports at 38400 baud
  - Includes support for Compact Flash Module
@@ -130,3 +140,8 @@ RC2014 w/ Z180:
  - Support for alternative serial modules may be enabled in config
  - Support for Scott Baker floppy controllers (SMC & WDC) may
    be enabled in config
+
+EZZ80:
+ - Assumes CPU oscillator of 10.000 MHz
+ - Includes support for on-board SIO
+ - Includes support for IDE via RC bus
diff --git a/ReadMe.txt b/ReadMe.txt
index 83b9f503..4f49c114 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -7,7 +7,7 @@
 ***********************************************************************
 
 Wayne Warthen (wwarthen@gmail.com)
-Version 2.9.1-pre.11, 2019-03-05
+Version 2.9.1-pre.12, 2019-03-15
 https://www.retrobrewcomputers.org/
 
 RomWBW is a ROM-based implementation of CP/M-80 2.2 and Z-System for 
diff --git a/Source/Apps/RTC.asm b/Source/Apps/RTC.asm
index 22e627ad..b61e826d 100644
--- a/Source/Apps/RTC.asm
+++ b/Source/Apps/RTC.asm
@@ -1070,6 +1070,10 @@ HINIT:
 	LD	DE,PLT_RC
 	CP	$07		; RC2014
 	JR	Z,RTC_INIT2
+	CP	$08		; RC2014 w/ Z180
+	JR	Z,RTC_INIT2
+	CP	$09		; Easy Z80
+	JR	Z,RTC_INIT2
 ;
 	; Unknown platform
 	LD	DE,PLTERR	; BIOS error message
@@ -1654,7 +1658,7 @@ UBTAG	.TEXT	"UNA UBIOS"
 PLT_SBC	.TEXT	", SBC/Zeta RTC Latch Port 0x70\r\n$"
 PLT_N8	.TEXT	", N8 RTC Latch Port 0x88\r\n$"
 PLT_MK4	.TEXT	", Mark 4 RTC Latch Port 0x8A\r\n$"
-PLT_RC	.TEXT	", RC2014 RTC Latch Port 0xC0\r\n$"
+PLT_RC	.TEXT	", RC2014 RTC Module Latch Port 0xC0\r\n$"
 
 ;
 ; Generic FOR-NEXT loop algorithm
diff --git a/Source/Apps/Tune/Tune.asm b/Source/Apps/Tune/Tune.asm
index f2c03141..f5f1a7bc 100644
--- a/Source/Apps/Tune/Tune.asm
+++ b/Source/Apps/Tune/Tune.asm
@@ -87,6 +87,9 @@ TYPMYM		.EQU	3		; FILTYP value for MYM sound file
 	LD	DE,MSGRC		; Message for RC2014 platform
 	CP	7			; RC2014?
 	JR	Z,_SETP			; If so, set ports
+	LD	DE,MSGEZ		; Message for Easy Z80 platform
+	CP	9			; Easy Z80?
+	JR	Z,_SETP			; If so, same ports as RC2014
 	LD	HL,$9D9C		; For N8, RSEL=9C, RDAT=9D
 	LD	DE,MSGN8		; Message for N8 platform
 	CP	4			; N8?
@@ -610,9 +613,10 @@ MSGHW	.DB	"Hardware error, sound chip not detected!",0
 MSGNAM	.DB	"Sound filename invalid (must be .PT2, .PT3, or .MYM)",0
 MSGFIL	.DB	"Sound file not found!",0
 MSGSIZ	.DB	"Sound file too large to load!",0
-MSGRC	.DB	"RC2014 Ed Brindley Sound Module",0
+MSGRC	.DB	"RC2014 w/ Ed Brindley Sound Module",0
+MSGEZ	.DB	"Easy Z80 w/ Ed Brindley Sound Module",0
 MSGN8	.DB	"RetroBrew N8 Onboard Sound System",0
-MSGSCG	.DB	"RetroBrew SCG ECB Adapter",0
+MSGSCG	.DB	"RetroBrew SCG ECB Adapter Sound System",0
 MSGTIM	.DB	", timer mode",0
 MSGDLY	.DB	", delay mode",0
 MSGPLY	.DB	"Playing...",0
diff --git a/Source/Apps/XM/xmhb.180 b/Source/Apps/XM/xmhb.180
index f0c19936..3033dc9e 100644
--- a/Source/Apps/XM/xmhb.180
+++ b/Source/Apps/XM/xmhb.180
@@ -133,6 +133,8 @@ MINIT1:
 	JR	Z,RCINIT	; Handle RC2014 special
 	CP	8		; Check for RC2014 w/ Z180
 	JR	Z,ARCINIT	; Handle RC2014 w/ Z180
+	CP	9		; Check for Easy Z80
+	JR	Z,RCINIT	; Treat same as RC2014 for now
 ;
 	; Check for Z180 which implies ASCI serial port
 	LD	DE,00202H	; D := 2, E := 2
diff --git a/Source/CBIOS/ver.inc b/Source/CBIOS/ver.inc
index 00c91863..a444ae6e 100644
--- a/Source/CBIOS/ver.inc
+++ b/Source/CBIOS/ver.inc
@@ -2,4 +2,4 @@
 #DEFINE	RMN	9
 #DEFINE	RUP	1
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"2.9.1-pre.11"
+#DEFINE BIOSVER	"2.9.1-pre.12"
diff --git a/Source/HBIOS/Build.ps1 b/Source/HBIOS/Build.ps1
index df80130b..c70e6d74 100644
--- a/Source/HBIOS/Build.ps1
+++ b/Source/HBIOS/Build.ps1
@@ -28,8 +28,8 @@ param([string]$Platform = "", [string]$Config = "", [string]$RomSize = "512", [s
 $Platform = $Platform.ToUpper()
 while ($true)
 {
-	if (($Platform -eq "SBC") -or ($Platform -eq "ZETA") -or ($Platform -eq "ZETA2") -or ($Platform -eq "RC") -or ($Platform -eq "RC180") -or ($Platform -eq "N8") -or ($Platform -eq "MK4") -or ($Platform -eq "UNA")) {break}
-	$Platform = (Read-Host -prompt "Platform [SBC|ZETA|ZETA2|RC|RC180|N8|MK4|UNA]").Trim().ToUpper()
+	if (($Platform -eq "SBC") -or ($Platform -eq "ZETA") -or ($Platform -eq "ZETA2") -or ($Platform -eq "RC") -or ($Platform -eq "EZZ80") -or ($Platform -eq "RC180") -or ($Platform -eq "N8") -or ($Platform -eq "MK4") -or ($Platform -eq "UNA")) {break}
+	$Platform = (Read-Host -prompt "Platform [SBC|ZETA|ZETA2|RC|EZZ80|RC180|N8|MK4|UNA]").Trim().ToUpper()
 }
 
 #
diff --git a/Source/HBIOS/Config/EZZ80_std.asm b/Source/HBIOS/Config/EZZ80_std.asm
new file mode 100644
index 00000000..beed33aa
--- /dev/null
+++ b/Source/HBIOS/Config/EZZ80_std.asm
@@ -0,0 +1,9 @@
+;
+;==================================================================================================
+;   EASY Z80 STANDARD CONFIGURATION
+;==================================================================================================
+;
+#include "cfg_ezz80.asm"
+;
+CPUOSC		.SET	10000000	; CPU OSC FREQ
+DEFSERCFG	.SET	SER_115200_8N1	; DEFAULT SERIAL LINE CONFIG (SHOULD MATCH ABOVE)
diff --git a/Source/HBIOS/Config/RC_ezz80.asm b/Source/HBIOS/Config/RC_ezz80.asm
deleted file mode 100644
index 32d9ab11..00000000
--- a/Source/HBIOS/Config/RC_ezz80.asm
+++ /dev/null
@@ -1,23 +0,0 @@
-;
-;==================================================================================================
-;   RC2014 - EASY Z80 CONFIGURATION
-;==================================================================================================
-;
-#include "cfg_rc.asm"
-;
-CPUOSC		.SET	10000000	; CPU OSC FREQ
-DEFSIOCLK	.SET	1843200		; SIO CLOCK FREQ
-DEFSERCFG	.SET	SER_115200_8N1	; DEFAULT SERIAL LINE CONFIG (SHOULD MATCH ABOVE)
-;
-SIOENABLE	.SET	TRUE		; TRUE TO AUTO-DETECT ZILOG SIO/2 
-SIOMODE		.SET	SIOMODE_EZZ80	; TYPE OF SIO/2 TO DETECT: SIOMODE_RC, SIOMODE_SMB, SIOMODE_EZZ80
-ACIAENABLE	.SET	FALSE		; TRUE TO AUTO-DETECT MOTOROLA 6850 ACIA
-;
-FDENABLE	.SET	FALSE		; TRUE FOR FLOPPY SUPPORT
-FDMODE		.SET	FDMODE_RCWDC	; FDMODE_RCSMC, FDMODE_RCWDC
-;
-IDEENABLE	.SET	TRUE		; TRUE FOR IDE DEVICE SUPPORT (CF MODULE)
-IDEMODE		.SET	IDEMODE_RC	; TYPE OF CF MODULE: IDEMODE_RC, IDEMODE_SMB
-PPIDEENABLE	.SET	FALSE		; TRUE FOR PPIDE DEVICE SUPPORT (PPIDE MODULE)
-;
-DSRTCENABLE	.SET	FALSE		; DS-1302 CLOCK DRIVER
diff --git a/Source/HBIOS/cfg_ezz80.asm b/Source/HBIOS/cfg_ezz80.asm
new file mode 100644
index 00000000..e41e0c08
--- /dev/null
+++ b/Source/HBIOS/cfg_ezz80.asm
@@ -0,0 +1,86 @@
+;
+;==================================================================================================
+;   ROMWBW 2.X CONFIGURATION DEFAULTS FOR EASY Z80
+;==================================================================================================
+;
+; BUILD CONFIGURATION OPTIONS
+;
+CPUOSC		.EQU	10000000	; CPU OSC FREQ
+RAMSIZE		.EQU	512		; SIZE OF RAM IN KB, MUST MATCH YOUR HARDWARE!!!
+DEFSERCFG	.EQU	SER_115200_8N1	; DEFAULT SERIAL LINE CONFIG (SHOULD MATCH ABOVE)
+INTMODE		.EQU	1		; 0=NONE, 1=INT MODE 1, 2=INT MODE 2
+;
+CRTACT		.EQU	FALSE		; CRT ACTIVATION AT STARTUP
+VDAEMU		.EQU	EMUTYP_ANSI	; DEFAULT VDA EMULATION (EMUTYP_TTY, EMUTYP_ANSI, ...)
+;
+DSKYENABLE	.EQU	FALSE		; TRUE FOR DSKY SUPPORT (DO NOT COMBINE WITH PPIDE)
+;
+HTIMENABLE	.EQU	FALSE		; TRUE FOR SIMH TIMER SUPPORT
+SIMRTCENABLE	.EQU	FALSE		; SIMH CLOCK DRIVER
+DSRTCENABLE	.EQU	FALSE		; DS-1302 CLOCK DRIVER
+DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTCMODE_STD, DSRTCMODE_MFPIC
+DSRTCCHG	.EQU	FALSE		; DS-1302 CONFIGURE CHARGE ON (TRUE) OR OFF (FALSE)
+;
+ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
+UARTENABLE	.EQU	FALSE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRUE)
+UARTOSC		.EQU	1843200		; UART OSC FREQUENCY
+ACIAENABLE	.EQU	FALSE		; TRUE FOR MOTOROLA 6850 ACIA SUPPORT
+;
+SIOENABLE	.EQU	TRUE		; TRUE FOR ZILOG SIO SUPPORT
+SIOMODE		.EQU	SIOMODE_EZZ80	; SIOMODE_RC, SIOMODE_SMB, SIOMODE_ZP
+DEFSIOACFG	.EQU	DEFSERCFG	; DEFAULT SERIAL LINE CONFIG
+DEFSIOBCFG	.EQU	DEFSERCFG	; DEFAULT SERIAL LINE CONFIG
+DEFSIODIV	.EQU	1		; 1=RC2014/SMB, 2/4/8/16/32/64/128/256=ZP depending on jumper X5
+DEFSIOCLK	.EQU	1843200		; 2457600/4915200=ZP,7372800=RC/SMB - SIO FIXED OSC FREQUENCY
+SIODEBUG	.EQU	FALSE		;PS
+;
+VDUENABLE	.EQU	FALSE		; TRUE FOR VDU BOARD SUPPORT
+CVDUENABLE	.EQU	FALSE		; TRUE FOR CVDU BOARD SUPPORT
+NECENABLE	.EQU	FALSE		; TRUE FOR uPD7220 BOARD SUPPORT
+TMSENABLE	.EQU	FALSE		; TRUE FOR N8 (TMS9918) VIDEO/KBD SUPPORT
+VGAENABLE	.EQU	FALSE		; TRUE FOR VGA VIDEO/KBD SUPPORT
+;
+SPKENABLE	.EQU	FALSE		; TRUE FOR RTC LATCH IOBIT SOUND
+AYENABLE	.EQU	FALSE		; TRUE FOR AY PSG SOUND
+;
+MDENABLE	.EQU	TRUE		; TRUE FOR ROM/RAM DISK SUPPORT (ALMOST ALWAYS WANT THIS ENABLED)
+MDTRACE		.EQU	1		; 0=SILENT, 1=ERRORS, 2=EVERYTHING (ONLY RELEVANT IF MDENABLE = TRUE)
+;
+FDENABLE	.EQU	FALSE		; TRUE FOR FLOPPY SUPPORT
+FDMODE		.EQU	FDMODE_RCWDC	; FDMODE_DIO, FDMODE_ZETA, FDMODE_DIDE, FDMODE_N8, FDMODE_DIO3
+FDTRACE		.EQU	1		; 0=SILENT, 1=FATAL ERRORS, 2=ALL ERRORS, 3=EVERYTHING (ONLY RELEVANT IF FDENABLE = TRUE)
+FDMEDIA		.EQU	FDM144		; FDM720, FDM144, FDM360, FDM120 (ONLY RELEVANT IF FDENABLE = TRUE)
+FDMEDIAALT	.EQU	FDM720		; ALTERNATE MEDIA TO TRY, SAME CHOICES AS ABOVE (ONLY RELEVANT IF FDMAUTO = TRUE)
+FDMAUTO		.EQU	TRUE		; SELECT BETWEEN MEDIA OPTS ABOVE AUTOMATICALLY
+;
+RFENABLE	.EQU	FALSE		; TRUE FOR RAM FLOPPY SUPPORT
+;
+IDEENABLE	.EQU	TRUE		; TRUE FOR IDE SUPPORT
+IDEMODE		.EQU	IDEMODE_RC	; IDEMODE_DIO, IDEMODE_DIDE, IDEMODE_RC
+IDETRACE	.EQU	1		; 0=SILENT, 1=ERRORS, 2=EVERYTHING (ONLY RELEVANT IF IDEENABLE = TRUE)
+IDE8BIT		.EQU	TRUE		; USE IDE 8BIT TRANSFERS (PROBABLY ONLY WORKS FOR CF CARDS!)
+;
+PPIDEENABLE	.EQU	FALSE		; TRUE FOR PPIDE SUPPORT (DO NOT COMBINE WITH DSKYENABLE)
+PPIDEMODE	.EQU	PPIDEMODE_RC	; PPIDEMODE_SBC, PPPIDEMODE_DIO3, PPIDEMODE_MFP, PPIDEMODE_N8, PPIDEMODE_RC
+PPIDETRACE	.EQU	1		; 0=SILENT, 1=ERRORS, 2=EVERYTHING (ONLY RELEVANT IF PPIDEENABLE = TRUE)
+PPIDE8BIT	.EQU	FALSE		; USE IDE 8BIT TRANSFERS (PROBABLY ONLY WORKS FOR CF CARDS!)
+;
+SDENABLE	.EQU	FALSE		; TRUE FOR SD SUPPORT
+SDMODE		.EQU	SDMODE_PPI	; SDMODE_JUHA, SDMODE_CSIO, SDMODE_UART, SDMODE_PPI, SDMODE_DSD
+SDTRACE		.EQU	1		; 0=SILENT, 1=ERRORS, 2=EVERYTHING (ONLY RELEVANT IF IDEENABLE = TRUE)
+SDCSIOFAST	.EQU	FALSE		; TABLE-DRIVEN BIT INVERTER
+;
+PRPENABLE	.EQU	FALSE		; TRUE FOR PROPIO SUPPORT
+;
+PPPENABLE	.EQU	FALSE		; TRUE FOR PARPORTPROP SUPPORT
+PPPSDENABLE	.EQU	TRUE		; TRUE FOR PARPORTPROP SD SUPPORT
+PPPSDTRACE	.EQU	1		; 0=SILENT, 1=ERRORS, 2=EVERYTHING (ONLY RELEVANT IF PPPENABLE = TRUE)
+PPPCONENABLE	.EQU	TRUE		; TRUE FOR PROPIO CONSOLE SUPPORT (PS/2 KBD & VGA VIDEO)
+;
+HDSKENABLE	.EQU	FALSE		; TRUE FOR SIMH HDSK SUPPORT
+;
+TERMENABLE	.EQU	FALSE		; TERM PSEUDO DEVICE, WILL BE ENABLED IF A VDA IS ENABLED
+;
+BOOTTYPE	.EQU	BT_MENU		; BT_MENU (WAIT FOR KEYPRESS), BT_AUTO (BOOT_DEFAULT AFTER BOOT_TIMEOUT SECS)
+BOOT_TIMEOUT	.EQU	20		; APPROX TIMEOUT IN SECONDS FOR AUTOBOOT, 0 FOR IMMEDIATE
+BOOT_DEFAULT	.EQU	'Z'		; SELECTION TO INVOKE AT TIMEOUT
diff --git a/Source/HBIOS/hbios.asm b/Source/HBIOS/hbios.asm
index a23f8e15..7c18d183 100644
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@@ -290,7 +290,7 @@ HBX_ROM:
 	OUT	(MPCL_ROM),A		; SET ROM PAGE SELECTOR
 	RET				; DONE
 #ENDIF
-#IF ((PLATFORM == PLT_ZETA2) | (PLATFORM == PLT_RC) | (PLATFORM == PLT_RC180))
+#IF ((PLATFORM == PLT_ZETA2) | (PLATFORM == PLT_RC) | (PLATFORM == PLT_RC180) | (PLATFORM == PLT_EZZ80))
 	BIT	7,A			; BIT 7 SET REQUESTS RAM PAGE
 	JR	Z,HBX_ROM		; NOT SET, SELECT ROM PAGE
 	RES	7,A			; RAM PAGE REQUESTED: CLEAR ROM BIT
@@ -715,7 +715,7 @@ HB_START:
 
 #ENDIF
 ;
-#IF ((PLATFORM == PLT_ZETA2) | (PLATFORM == PLT_RC) | (PLATFORM == PLT_RC180))
+#IF ((PLATFORM == PLT_ZETA2) | (PLATFORM == PLT_RC) | (PLATFORM == PLT_RC180) | (PLATFORM == PLT_EZZ80))
 	; SET PAGING REGISTERS
 #IFDEF ROMBOOT
 	XOR	A
@@ -1089,7 +1089,7 @@ INITSYS1:
 ; IF PLATFORM HAS A CONFIG JUMPER, CHECK TO SEE IF IT IS JUMPERED.
 ; IF SO, BYPASS SWITCH TO CRT CONSOLE (FAILSAFE MODE)
 ;
-#IF ((PLATFORM != PLT_N8) & (PLATFORM != PLT_MK4) & (PLATFORM != PLT_RC) & (PLATFORM != PLT_RC180))
+#IF ((PLATFORM != PLT_N8) & (PLATFORM != PLT_MK4) & (PLATFORM != PLT_RC) & (PLATFORM != PLT_RC180) & (PLATFORM != PLT_EZZ80))
 	IN	A,(RTC)			; RTC PORT, BIT 6 HAS STATE OF CONFIG JUMPER
 	BIT	6,A			; BIT 6 HAS CONFIG JUMPER STATE
 	JR	Z,INITSYS3		; Z=SHORTED, BYPASS CONSOLE SWITCH
@@ -2498,7 +2498,7 @@ HB_WAITSEC:
 	; RETURN SECS VALUE IN A, LOOP COUNT IN DE
 	LD	DE,0			; INIT LOOP COUNTER
 HB_WAITSEC1:
-#IF ((PLATFORM == PLT_SBC) | (PLATFORM == PLT_ZETA) | (PLATFORM == PLT_ZETA2)| (PLATFORM == PLT_RC))
+#IF ((PLATFORM == PLT_SBC) | (PLATFORM == PLT_ZETA) | (PLATFORM == PLT_ZETA2) | (PLATFORM == PLT_RC) | (PLATFORM == PLT_EZZ80))
 	; LOOP TARGET IS 4000 T-STATES, SO CPU FREQ IN KHZ = LOOP COUNT * 4
 	CALL	DLY32
 	CALL	DLY8
diff --git a/Source/HBIOS/plt_ezz80.inc b/Source/HBIOS/plt_ezz80.inc
new file mode 100644
index 00000000..f848803a
--- /dev/null
+++ b/Source/HBIOS/plt_ezz80.inc
@@ -0,0 +1,11 @@
+;
+; EASY Z80 HARDWARE DEFINITIONS
+;
+MPGSEL_0	.EQU	$78	; BANK_0 PAGE SELECT REGISTER (WRITE ONLY)
+MPGSEL_1	.EQU	$79	; BANK_1 PAGE SELECT REGISTER (WRITE ONLY)
+MPGSEL_2	.EQU	$7A	; BANK_2 PAGE SELECT REGISTER (WRITE ONLY)
+MPGSEL_3	.EQU	$7B	; BANK_3 PAGE SELECT REGISTER (WRITE ONLY)
+MPGENA		.EQU	$7C	; PAGING ENABLE REGISTER - BIT 0 = 1  (WRITE ONLY)
+;
+RTC	    	.EQU	$C0	; RTC PORT address
+SIOBASE 	.EQU 	$80	; RC OR SMB SIO DEFAULT
diff --git a/Source/HBIOS/plt_sbc.inc b/Source/HBIOS/plt_sbc.inc
index d0795108..341b2401 100644
--- a/Source/HBIOS/plt_sbc.inc
+++ b/Source/HBIOS/plt_sbc.inc
@@ -19,4 +19,4 @@ MPGENA		.EQU	SBC_BASE + $1C	; PAGING ENABLE REGISTER - BIT 0 = 1  (WRITE ONLY)
 ;
 RTC		.EQU	SBC_BASE + $10	; ADDRESS OF RTC LATCH AND INPUT PORT
 PPIBASE		.EQU	SBC_BASE + $00	; PPI 82C55 I/O IS DECODED TO PORT 60-67
-SIOBASE	.EQU	$B0				; ZILOG PERIPHERALS DEFAULT				;PS
+SIOBASE		.EQU	$B0		; ZILOG PERIPHERALS DEFAULT				;PS
diff --git a/Source/HBIOS/std.asm b/Source/HBIOS/std.asm
index b670d283..a26c0893 100644
--- a/Source/HBIOS/std.asm
+++ b/Source/HBIOS/std.asm
@@ -35,6 +35,7 @@ PLT_MK4		.EQU	5		; MARK IV
 PLT_UNA		.EQU	6		; UNA BIOS
 PLT_RC		.EQU	7		; RC2014
 PLT_RC180	.EQU	8		; RC2014 W/ Z180
+PLT_EZZ80	.EQU	9		; EASY Z80
 ;
 #IF (PLATFORM != PLT_UNA)
 #INCLUDE "hbios.inc"
@@ -276,6 +277,9 @@ IVT_PIO3	.EQU	24
 #IF (PLATFORM == PLT_RC180)
   #DEFINE	PLATFORM_NAME	"RC2014 Z180"
 #ENDIF
+#IF (PLATFORM == PLT_EZZ80)
+  #DEFINE	PLATFORM_NAME	"EASY Z80"
+#ENDIF
 ;
 ; INCLUDE PLATFORM SPECIFIC HARDWARE DEFINITIONS
 ;
@@ -303,6 +307,10 @@ IVT_PIO3	.EQU	24
 #INCLUDE "plt_rc180.inc"
 #ENDIF
 ;
+#IF (PLATFORM == PLT_EZZ80)
+#INCLUDE "plt_ezz80.inc"
+#ENDIF
+;
 ; SETUP DEFAULT CPU SPEED VALUES
 ;
 CPUKHZ	.EQU	CPUOSC / 1000	; CPU FREQ IN KHZ
diff --git a/Source/HBIOS/ver.inc b/Source/HBIOS/ver.inc
index 00c91863..a444ae6e 100644
--- a/Source/HBIOS/ver.inc
+++ b/Source/HBIOS/ver.inc
@@ -2,4 +2,4 @@
 #DEFINE	RMN	9
 #DEFINE	RUP	1
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"2.9.1-pre.11"
+#DEFINE BIOSVER	"2.9.1-pre.12"
diff --git a/Source/ReadMe.txt b/Source/ReadMe.txt
index 81990b2e..6f976949 100644
--- a/Source/ReadMe.txt
+++ b/Source/ReadMe.txt
@@ -95,6 +95,7 @@ to determine the <plt> component of the configuration filename:
 	N8		N8_std.rom
 	Mark IV		MK4_std.rom
 	RC2014		RC_std.rom
+	Easy Z80	EZZ80_std.rom
 
 You can use any name you choose for the <cfg> component of the 
 configuration filename.  So, let's say you want to create a custom