diff --git a/Source/Apps/rtc.asm b/Source/Apps/rtc.asm
index 5a4ebeb5..915cf037 100644
--- a/Source/Apps/rtc.asm
+++ b/Source/Apps/rtc.asm
@@ -29,6 +29,8 @@
 ;
 ;[2021/07/10] v1.7 Support MBC (AJL)
 ;
+;[2022/03/27] v1.8 Support RHYOPHYRE
+;
 ; Constants
 ;
 mask_data	.EQU	%10000000	; RTC data line
@@ -46,6 +48,7 @@ PORT_SCZ180	.EQU	$0C		; RTC port for SCZ180
 PORT_DYNO	.EQU	$0C		; RTC port for DYNO
 PORT_RCZ280	.EQU	$C0		; RTC port for RCZ280
 PORT_MBC	.EQU	$70		; RTC port for MBC
+PORT_RPH	.EQU	$84		; RTC port for RHYOPHYRE
 
 
 BDOS		.EQU	5		; BDOS invocation vector
@@ -1126,6 +1129,11 @@ HINIT:
 	LD	DE,PLT_MBC
 	CP	13		; MBC
 	JR	Z,RTC_INIT2
+;
+	LD	C,PORT_RPH
+	LD	DE,PLT_RPH
+	CP	14		; RHYOPHYRE
+	JR	Z,RTC_INIT2
 ;
 	; Unknown platform
 	LD	DE,PLTERR	; BIOS error message
@@ -1622,7 +1630,7 @@ TESTING_BIT_DELAY_OVER:
 
 RTC_HELP_MSG:
 	.DB	0Ah, 0Dh		; line feed and carriage return
-	.TEXT	"RTC: Version 1.7"
+	.TEXT	"RTC: Version 1.8"
 	.DB	0Ah, 0Dh		; line feed and carriage return
 	.TEXT	"Commands: E)xit T)ime st(A)rt S)et R)aw L)oop C)harge N)ocharge D)elay I)nit G)et P)ut B)oot W)arm-start H)elp"
 	.DB	0Ah, 0Dh		; line feed and carriage return
@@ -1751,6 +1759,7 @@ PLT_SCZ180	.TEXT	", SC Z180 RTC Module Latch Port 0x0C\r\n$"
 PLT_DYNO	.TEXT	", DYNO RTC Module Latch Port 0x0C\r\n$"
 PLT_RCZ280	.TEXT	", RC2014 Z280 RTC Module Latch Port 0xC0\r\n$"
 PLT_MBC		.TEXT	", MBC RTC Latch Port 0x70\r\n$"
+PLT_RPH		.TEXT	", RHYOPHYRE RTC Latch Port 0x84\r\n$"
 
 ;
 ; Generic FOR-NEXT loop algorithm
diff --git a/Source/HBIOS/Build.cmd b/Source/HBIOS/Build.cmd
index 04dad21d..4dc90995 100644
--- a/Source/HBIOS/Build.cmd
+++ b/Source/HBIOS/Build.cmd
@@ -211,5 +211,6 @@ call Build EZZ80 std 512 || exit /b
 call Build EZZ80 tz80 512 || exit /b
 call Build DYNO std 512 || exit /b
 call Build UNA std 512 || exit /b
+call Build RPH std 512 || exit /b
 
 goto :eof
diff --git a/Source/HBIOS/Build.ps1 b/Source/HBIOS/Build.ps1
index a5606716..21689463 100644
--- a/Source/HBIOS/Build.ps1
+++ b/Source/HBIOS/Build.ps1
@@ -28,7 +28,7 @@ $ErrorAction = 'Stop'
 #
 
 $PlatformListZ80 = "SBC", "MBC", "ZETA", "ZETA2", "RCZ80", "EZZ80", "UNA"
-$PlatformListZ180 = "N8", "MK4", "RCZ180", "SCZ180", "DYNO"
+$PlatformListZ180 = "N8", "MK4", "RCZ180", "SCZ180", "DYNO", "RPH"
 $PlatformListZ280 = "RCZ280"
 
 #
diff --git a/Source/HBIOS/Build.sh b/Source/HBIOS/Build.sh
index 818b45fa..202fbae2 100755
--- a/Source/HBIOS/Build.sh
+++ b/Source/HBIOS/Build.sh
@@ -27,6 +27,7 @@ if [ "${ROM_PLATFORM}" == "dist" ] ; then
 	ROM_PLATFORM="RCZ80"; ROM_CONFIG="skz"; ROMSIZE="512"; bash Build.sh
 	ROM_PLATFORM="RCZ80"; ROM_CONFIG="zrc"; ROMSIZE="512"; bash Build.sh
 	ROM_PLATFORM="RCZ80"; ROM_CONFIG="zrc_ram"; ROMSIZE="0"; bash Build.sh
+	ROM_PLATFORM="RPH"; ROM_CONFIG="std"; ROMSIZE="512"; bash Build.sh
 	ROM_PLATFORM="SBC"; ROM_CONFIG="std"; ROMSIZE="512"; bash Build.sh
 	ROM_PLATFORM="SBC"; ROM_CONFIG="simh"; ROMSIZE="512"; bash Build.sh
 	ROM_PLATFORM="MBC"; ROM_CONFIG="std"; ROMSIZE="512"; bash Build.sh
diff --git a/Source/HBIOS/Config/MBC_ddw.asm b/Source/HBIOS/Config/RPH_std.asm
similarity index 56%
rename from Source/HBIOS/Config/MBC_ddw.asm
rename to Source/HBIOS/Config/RPH_std.asm
index 9a628d19..db23d13c 100644
--- a/Source/HBIOS/Config/MBC_ddw.asm
+++ b/Source/HBIOS/Config/RPH_std.asm
@@ -1,6 +1,6 @@
 ;
 ;==================================================================================================
-;   MBC CONFIGURATION
+;   N8 STANDARD CONFIGURATION
 ;==================================================================================================
 ;
 ; THE COMPLETE SET OF DEFAULT CONFIGURATION SETTINGS FOR THIS PLATFORM ARE FOUND IN THE
@@ -22,35 +22,18 @@
 ; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE SOURCE DIRECTORY (TWO
 ; DIRECTORIES ABOVE THIS ONE).
 ;
-#DEFINE PLATFORM_NAME "Multi Board Computer"
 #DEFINE	BOOT_DEFAULT	"H"		; DEFAULT BOOT LOADER CMD ON <CR> OR AUTO BOOT
 ;
-#include "cfg_mbc.asm"
-;
-CPUOSC		.EQU	4000000		; CPU OSC FREQ IN MHZ
-;
-BATCOND		.SET	FALSE
-;
-PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
-;
-DSKYENABLE	.SET	TRUE		; ENABLES DSKY
-DSKYMODE	.SET	DSKYMODE_NG	; DSKY VERTSION: DSKYMODE_[V1|NG]
-DSKYOSC         .SET    100000
-;
-FDENABLE	.EQU	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
-
-;DIAGLVL		.EQU	DL_VERBOSE
-
-DMAENABLE	.EQU	TRUE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
-DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.EQU	DMAMODE_MBC	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC)
-
-CVDUMODE .EQU CVDUMODE_MBC ; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
-CVDUMON .EQU CVDUMON_CGA ; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
-
-INTMODE         .SET    2
-CTCENABLE       .SET    TRUE            ; ENABLE ZILOG CTC SUPPORT
-
-AY38910ENABLE	.EQU	TRUE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
-AY_CLK		.EQU	CPUOSC / 2	; DEFAULT TO CPUOSC / 4
-AYMODE		.EQU	AYMODE_MBC	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
\ No newline at end of file
+#include "cfg_rph.asm"
+;
+CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
+;
+INTMODE		.SET	0		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+;
+Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+;
+PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
diff --git a/Source/HBIOS/Makefile b/Source/HBIOS/Makefile
index 371f24d2..2fff3b8f 100644
--- a/Source/HBIOS/Makefile
+++ b/Source/HBIOS/Makefile
@@ -12,7 +12,7 @@ include $(TOOLS)/Makefile.inc
 
 FONTS := font8x11c.asm font8x11u.asm font8x16c.asm font8x16u.asm font8x8c.asm font8x8u.asm fontcgac.asm fontcgau.asm
 
-ifneq ($(findstring $(ROM_PLATFORM), N8 MK4 RCZ180 SCZ180 DYNO),)
+ifneq ($(findstring $(ROM_PLATFORM), N8 MK4 RCZ180 SCZ180 DYNO RPH),)
 	TASM=$(BINDIR)/uz80as -t hd64180
 endif
 
diff --git a/Source/HBIOS/cfg_dyno.asm b/Source/HBIOS/cfg_dyno.asm
index fb1d0e36..aa2feb42 100644
--- a/Source/HBIOS/cfg_dyno.asm
+++ b/Source/HBIOS/cfg_dyno.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_DYNO	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_DYNO	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_38400_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 RAMLOC		.EQU	19		; START OF RAM AS POWER OF 2 (2^N) IN PHYSICAL ADDRESS SPACE
 RAMBIAS		.EQU	(1 << (RAMLOC - 10))	; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
diff --git a/Source/HBIOS/cfg_ezz80.asm b/Source/HBIOS/cfg_ezz80.asm
index 05380eb9..d5339255 100644
--- a/Source/HBIOS/cfg_ezz80.asm
+++ b/Source/HBIOS/cfg_ezz80.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_EZZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_EZZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_115200_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
 MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
 MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
diff --git a/Source/HBIOS/cfg_master.asm b/Source/HBIOS/cfg_master.asm
index 0027b3ad..58c6f992 100644
--- a/Source/HBIOS/cfg_master.asm
+++ b/Source/HBIOS/cfg_master.asm
@@ -12,7 +12,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_SBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_SBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -30,7 +30,7 @@ DEFSERCFG	.EQU	SER_38400_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_NONE		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_NONE		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 RAMLOC		.EQU	19		; START OF RAM AS POWER OF 2 (2^N) IN PHYSICAL ADDRESS SPACE
 RAMBIAS		.EQU	(1 << (RAMLOC - 10))	; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 MPCL_RAM	.EQU	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
@@ -60,6 +60,11 @@ N8_ACR		.EQU	$94		; N8: AUXILLARY CONTROL REGISTER (ACR) ADR
 N8_RMAP		.EQU	$96		; N8: ROM PAGE REGISTER ADR
 N8_DEFACR	.EQU	$1B		; N8: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
 ;
+RPH_PPI0	.EQU	$88		; RPH: FIRST PARALLEL PORT REGISTERS BASE ADR
+RPH_RTC		.EQU	$84		; RPH: RTC LATCH REGISTER ADR
+RPH_ACR		.EQU	$80		; RPH: AUXILLARY CONTROL REGISTER (ACR) ADR
+RPH_DEFACR	.EQU	$00		; RPH: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
+;
 MK4_IDE		.EQU	$80		; MK4: IDE REGISTERS BASE ADR
 MK4_XAR		.EQU	$88		; MK4: EXTERNAL ADDRESS REGISTER (XAR) ADR
 MK4_SD		.EQU	$89		; MK4: SD CARD CONTROL REGISTER ADR
diff --git a/Source/HBIOS/cfg_mbc.asm b/Source/HBIOS/cfg_mbc.asm
index 0158e09f..7a7f80f8 100644
--- a/Source/HBIOS/cfg_mbc.asm
+++ b/Source/HBIOS/cfg_mbc.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_MBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_MBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_38400_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_MBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_MBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 MPCL_RAM	.EQU	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
 MPCL_ROM	.EQU	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
 ;
diff --git a/Source/HBIOS/cfg_mk4.asm b/Source/HBIOS/cfg_mk4.asm
index bb816d8e..dbaa86f4 100644
--- a/Source/HBIOS/cfg_mk4.asm
+++ b/Source/HBIOS/cfg_mk4.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_MK4		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_MK4		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_38400_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 RAMLOC		.EQU	19		; START OF RAM AS POWER OF 2 (2^N) IN PHYSICAL ADDRESS SPACE
 RAMBIAS		.EQU	(1 << (RAMLOC - 10))	; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 ;
diff --git a/Source/HBIOS/cfg_n8.asm b/Source/HBIOS/cfg_n8.asm
index 57f589d7..e13e1bbe 100644
--- a/Source/HBIOS/cfg_n8.asm
+++ b/Source/HBIOS/cfg_n8.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_N8		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_N8		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_38400_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_N8		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_N8		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 RAMBIAS		.EQU	0		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 RAMLOC		.EQU	0		; START OF RAM AS POWER OF 2 (2^N) IN PHYSICAL ADDRESS SPACE
 ;
diff --git a/Source/HBIOS/cfg_rcz180.asm b/Source/HBIOS/cfg_rcz180.asm
index e558f32e..dee7135c 100644
--- a/Source/HBIOS/cfg_rcz180.asm
+++ b/Source/HBIOS/cfg_rcz180.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_RCZ180	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_RCZ180	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_115200_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 RAMLOC		.EQU	19		; START OF RAM AS POWER OF 2 (2^N) IN PHYSICAL ADDRESS SPACE
 RAMBIAS		.EQU	(1 << (RAMLOC - 10))	; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
diff --git a/Source/HBIOS/cfg_rcz280.asm b/Source/HBIOS/cfg_rcz280.asm
index 509ca067..cfe8bbff 100644
--- a/Source/HBIOS/cfg_rcz280.asm
+++ b/Source/HBIOS/cfg_rcz280.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_RCZ280	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_RCZ280	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z280	; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_115200_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 RAMLOC		.EQU	19		; START OF RAM AS POWER OF 2 (2^N) IN PHYSICAL ADDRESS SPACE
 RAMBIAS		.EQU	(1 << (RAMLOC - 10))	; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
diff --git a/Source/HBIOS/cfg_rcz80.asm b/Source/HBIOS/cfg_rcz80.asm
index b7023e43..3628aae0 100644
--- a/Source/HBIOS/cfg_rcz80.asm
+++ b/Source/HBIOS/cfg_rcz80.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_RCZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_RCZ80	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_115200_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
 MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
 MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
diff --git a/Source/HBIOS/cfg_rph.asm b/Source/HBIOS/cfg_rph.asm
new file mode 100644
index 00000000..56ef3354
--- /dev/null
+++ b/Source/HBIOS/cfg_rph.asm
@@ -0,0 +1,248 @@
+;
+;==================================================================================================
+;   ROMWBW 2.X CONFIGURATION FOR RHYOPHYRE
+;==================================================================================================
+;
+; THIS FILE CONTAINS THE FULL SET OF DEFAULT CONFIGURATION SETTINGS FOR THE PLATFORM
+; INDICATED ABOVE. THIS FILE SHOULD *NOT* NORMALLY BE CHANGED.	INSTEAD, YOU SHOULD
+; OVERRIDE ANY SETTINGS YOU WANT USING A CONFIGURATION FILE IN THE CONFIG DIRECTORY
+; UNDER THIS DIRECTORY.
+;
+; THIS FILE CAN BE CONSIDERED A REFERENCE THAT LISTS ALL POSSIBLE CONFIGURATION SETTINGS
+; FOR THE PLATFORM.
+;
+#DEFINE PLATFORM_NAME "RHYOPHYRE"
+;
+#INCLUDE "hbios.inc"
+;
+PLATFORM	.EQU	PLT_RPH		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
+CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
+BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
+BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
+HBIOS_MUTEX	.EQU	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+USELZSA2	.EQU	TRUE		; ENABLE FONT COMPRESSION
+TICKFREQ	.EQU	50		; DESIRED PERIODIC TIMER INTERRUPT FREQUENCY (HZ)
+;
+BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
+;
+CPUSPDCAP	.EQU	SPD_FIXED	; CPU SPEED CHANGE CAPABILITY SPD_FIXED|SPD_HILO
+CPUSPDDEF	.EQU	SPD_HIGH	; CPU SPEED DEFAULT SPD_UNSUP|SPD_HIGH|SPD_LOW
+CPUOSC		.EQU	18432000	; CPU OSC FREQ IN MHZ
+INTMODE		.EQU	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
+DEFSERCFG	.EQU	SER_38400_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
+;
+RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
+MEMMGR		.EQU	MM_RPH		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
+RAMBIAS		.EQU	0		; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
+RAMLOC		.EQU	0		; START OF RAM AS POWER OF 2 (2^N) IN PHYSICAL ADDRESS SPACE
+;
+Z180_BASE	.EQU	$40		; Z180: I/O BASE ADDRESS FOR INTERNAL REGISTERS
+Z180_CLKDIV	.EQU	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
+Z180_MEMWAIT	.EQU	0		; Z180: MEMORY WAIT STATES (0-3)
+Z180_IOWAIT	.EQU	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+Z180_TIMER	.EQU	FALSE		; Z180: ENABLE Z180 SYSTEM PERIODIC TIMER
+;
+RPH_PPI0	.EQU	$88		; RPH: FIRST PARALLEL PORT REGISTERS BASE ADR
+RPH_RTC		.EQU	$84		; RPH: RTC LATCH REGISTER ADR
+RPH_ACR		.EQU	$80		; RPH: AUXILLARY CONTROL REGISTER (ACR) ADR
+RPH_DEFACR	.EQU	$00		; RPH: AUX CTL REGISTER DEFAULT VALUE (QUIESCIENT STATE)
+;
+RTCIO		.EQU	RPH_RTC		; RTC LATCH REGISTER ADR
+;
+KIOENABLE	.EQU	FALSE		; ENABLE ZILOG KIO SUPPORT
+KIOBASE		.EQU	$80		; KIO BASE I/O ADDRESS
+;
+CTCENABLE	.EQU	FALSE		; ENABLE ZILOG CTC SUPPORT
+CTCDEBUG	.EQU	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
+CTCBASE		.EQU	$B0		; CTC BASE I/O ADDRESS
+CTCTIMER	.EQU	FALSE		; ENABLE CTC PERIODIC TIMER
+;
+EIPCENABLE	.EQU	FALSE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
+;
+SKZENABLE	.EQU	FALSE		; ENABLE SERGEY'S Z80-512K FEATURES
+;
+WDOGMODE	.EQU	WDOG_NONE	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
+;
+DIAGENABLE	.EQU	FALSE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
+DIAGPORT	.EQU	$00		; DIAGNOSTIC PORT ADDRESS
+DIAGDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON DIAGNOSTIC LEDS
+;
+LEDENABLE	.EQU	FALSE		; ENABLES STATUS LED
+LEDMODE		.EQU	LEDMODE_RTC	; LEDMODE_[STD|RTC]
+LEDPORT		.EQU	RTCIO		; STATUS LED PORT ADDRESS
+LEDDISKIO	.EQU	TRUE		; ENABLES DISK I/O ACTIVITY ON STATUS LED
+;
+DSKYENABLE	.EQU	FALSE		; ENABLES DSKY
+DSKYMODE	.EQU	DSKYMODE_V1	; DSKY VERSION: DSKYMODE_[V1|NG]
+DSKYPPIBASE	.EQU	RPH_PPI0		; BASE I/O ADDRESS OF DSKY PPI
+DSKYOSC		.EQU	3000000		; OSCILLATOR FREQ FOR DSKYNG (IN HZ)
+;
+BOOTCON		.EQU	0		; BOOT CONSOLE DEVICE
+CRTACT		.EQU	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
+VDAEMU		.EQU	EMUTYP_ANSI	; VDA EMULATION: EMUTYP_[TTY|ANSI]
+ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
+KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+;
+DSRTCENABLE	.EQU	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTC: OPERATING MODE: DSRTC_[STD|MFPIC]
+DSRTCCHG	.EQU	FALSE		; DSRTC: FORCE BATTERY CHARGE ON (USE WITH CAUTION!!!)
+;
+BQRTCENABLE	.EQU	FALSE		; BQRTC: ENABLE BQ4845 CLOCK DRIVER (BQRTC.ASM)
+BQRTC_BASE	.EQU	$50		; BQRTC: I/O BASE ADDRESS
+;
+INTRTCENABLE	.EQU	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+RP5RTCENABLE	.EQU	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
+;
+HTIMENABLE	.EQU	FALSE		; ENABLE SIMH TIMER SUPPORT
+SIMRTCENABLE	.EQU	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
+DS7RTCENABLE	.EQU	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
+DS7RTCMODE	.EQU	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+;
+DUARTENABLE	.EQU	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
+;
+UARTENABLE	.EQU	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTOSC		.EQU	1843200		; UART: OSC FREQUENCY IN MHZ
+UARTINTS	.EQU	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
+UARTCFG		.EQU	DEFSERCFG	; UART: LINE CONFIG FOR UART PORTS
+UARTCASSPD	.EQU	SER_300_8N1	; UART: ECB CASSETTE UART DEFAULT SPEED
+UARTSBC		.EQU	FALSE		; UART: AUTO-DETECT SBC/ZETA ONBOARD UART
+UARTSBCFORCE	.EQU	FALSE		; UART: FORCE DETECTION OF SBC UART (FOR SIMH)
+UARTCAS		.EQU	FALSE		; UART: AUTO-DETECT ECB CASSETTE UART
+UARTMFP		.EQU	FALSE		; UART: AUTO-DETECT MF/PIC UART
+UART4		.EQU	FALSE		; UART: AUTO-DETECT 4UART UART
+UARTRC		.EQU	FALSE		; UART: AUTO-DETECT RC UART
+UARTDUAL	.EQU	FALSE		; UART: AUTO-DETECT DUAL UART
+;
+ASCIENABLE	.EQU	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
+ASCISWAP	.EQU	FALSE		; ASCI: SWAP CHANNELS
+ASCIBOOT	.EQU	0		; ASCI: REBOOT ON RCV CHAR (0=DISABLED)
+ASCI0CFG	.EQU	DEFSERCFG	; ASCI 0: SERIAL LINE CONFIG
+ASCI1CFG	.EQU	DEFSERCFG	; ASCI 1: SERIAL LINE CONFIG
+;
+Z2UENABLE	.EQU	FALSE		; Z2U: ENABLE Z280 UART SERIAL DRIVER (Z2U.ASM)
+;
+ACIAENABLE	.EQU	FALSE		; ACIA: ENABLE MOTOROLA 6850 ACIA DRIVER (ACIA.ASM)
+;
+SIOENABLE	.EQU	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
+;
+XIOCFG		.EQU	DEFSERCFG	; XIO: SERIAL LINE CONFIG
+;
+VDUENABLE	.EQU	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
+VDUSIZ		.EQU	V80X25		; VDU: DISPLAY FORMAT [V80X24|V80X25|V80X30]
+CVDUENABLE	.EQU	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+CVDUMODE	.EQU	CVDUMODE_ECB	; CVDU: CVDU MODE: CVDUMODE_[NONE|ECB|MBC]
+CVDUMON		.EQU	CVDUMON_EGA	; CVDU: CVDU MONITOR SETUP: CVDUMON_[NONE|CGA|EGA]
+NECENABLE	.EQU	FALSE		; NEC: ENABLE NEC UPD7220 VIDEO/KBD DRIVER (NEC.ASM)
+TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
+TMSMODE		.EQU	TMSMODE_N8	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|RC|RCV9958|RCKBD]
+TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
+VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+;
+MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
+MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
+MDRAM		.EQU	TRUE		; MD: ENABLE RAM DISK
+MDTRACE		.EQU	1		; MD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+MDFFENABLE	.EQU	FALSE		; MD: ENABLE FLASH FILE SYSTEM
+;
+FDENABLE	.EQU	FALSE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDMODE		.EQU	FDMODE_N8	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.EQU	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
+FDTRACE		.EQU	1		; FD: TRACE LEVEL (0=NO,1=FATAL,2=ERRORS,3=ALL)
+FDMEDIA		.EQU	FDM144		; FD: DEFAULT MEDIA FORMAT FDM[720|144|360|120|111]
+FDMEDIAALT	.EQU	FDM720		; FD: ALTERNATE MEDIA FORMAT FDM[720|144|360|120|111]
+FDMAUTO		.EQU	TRUE		; FD: AUTO SELECT DEFAULT/ALTERNATE MEDIA FORMATS
+;
+RFENABLE	.EQU	FALSE		; RF: ENABLE RAM FLOPPY DRIVER
+RFCNT		.EQU	1		; RF: NUMBER OF RAM FLOPPY UNITS (1-4)
+;
+IDEENABLE	.EQU	FALSE		; IDE: ENABLE IDE DISK DRIVER (IDE.ASM)
+IDETRACE	.EQU	1		; IDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+IDECNT		.EQU	1		; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
+IDE0MODE	.EQU	IDEMODE_DIO	; IDE 0: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
+IDE0BASE	.EQU	$20		; IDE 0: IO BASE ADDRESS
+IDE0DATLO	.EQU	$20		; IDE 0: DATA LO PORT FOR 16-BIT I/O
+IDE0DATHI	.EQU	$28		; IDE 0: DATA HI PORT FOR 16-BIT I/O
+IDE0A8BIT	.EQU	FALSE		; IDE 0A (MASTER): 8 BIT XFER
+IDE0B8BIT	.EQU	FALSE		; IDE 0B (MASTER): 8 BIT XFER
+IDE1MODE	.EQU	IDEMODE_NONE	; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
+IDE1BASE	.EQU	$00		; IDE 1: IO BASE ADDRESS
+IDE1DATLO	.EQU	$00		; IDE 1: DATA LO PORT FOR 16-BIT I/O
+IDE1DATHI	.EQU	$00		; IDE 1: DATA HI PORT FOR 16-BIT I/O
+IDE1A8BIT	.EQU	TRUE		; IDE 1A (MASTER): 8 BIT XFER
+IDE1B8BIT	.EQU	TRUE		; IDE 1B (MASTER): 8 BIT XFER
+IDE2MODE	.EQU	IDEMODE_NONE	; IDE 2: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]
+IDE2BASE	.EQU	$00		; IDE 2: IO BASE ADDRESS
+IDE2DATLO	.EQU	$00		; IDE 2: DATA LO PORT FOR 16-BIT I/O
+IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
+IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
+IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
+;
+PPIDEENABLE	.EQU	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
+PPIDE0BASE	.EQU	RPH_PPI0	; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
+PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE1BASE	.EQU	$00		; PPIDE 1: PPI REGISTERS BASE ADR
+PPIDE1A8BIT	.EQU	FALSE		; PPIDE 1A (MASTER): 8 BIT XFER
+PPIDE1B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+PPIDE2BASE	.EQU	$00		; PPIDE 2: PPI REGISTERS BASE ADR
+PPIDE2A8BIT	.EQU	FALSE		; PPIDE 2A (MASTER): 8 BIT XFER
+PPIDE2B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
+;
+SDENABLE	.EQU	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
+SDMODE		.EQU	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT]
+SDPPIBASE	.EQU	RPH_PPI0	; SD: BASE I/O ADDRESS OF PPI FOR PPI MODDE
+SDCNT		.EQU	1		; SD: NUMBER OF SD CARD DEVICES (1-2), FOR DSD & SC ONLY
+SDTRACE		.EQU	1		; SD: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+SDCSIOFAST	.EQU	FALSE		; SD: ENABLE TABLE-DRIVEN BIT INVERTER IN CSIO MODE
+;
+PRPENABLE	.EQU	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.EQU	FALSE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.EQU	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.EQU	FALSE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
+;
+PPPENABLE	.EQU	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
+HDSKENABLE	.EQU	FALSE		; HDSK: ENABLE SIMH HDSK DISK DRIVER (HDSK.ASM)
+;
+PIOENABLE	.EQU	FALSE		; PIO: ENABLE ZILOG PIO DRIVER (PIO.ASM)
+PIOCNT		.EQU	2		; PIO: NUMBER OF CHIPS TO DETECT (1-2), 2 CHANNELS PER CHIP
+PIO0BASE	.EQU	$B8		; PIO 0: REGISTERS BASE ADR
+PIO1BASE	.EQU	$BC		; PIO 1: REGISTERS BASE ADR
+;
+CENENABLE	.EQU	FALSE		; CEN: ENABLE CENTRONICS DRIVER (CEN.ASM)
+;
+PIO_4P		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB 4P BOARD
+PIO4BASE	.EQU	$90		; PIO: PIO REGISTERS BASE ADR FOR ECB 4P BOARD
+PIO_ZP		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR ECB ZILOG PERIPHERALS BOARD (PIO.ASM)
+PIOZBASE	.EQU	$88		; PIO: PIO REGISTERS BASE ADR FOR ECB ZP BOARD
+PIO_SBC		.EQU	FALSE		; PIO: ENABLE PARALLEL PORT DRIVER FOR 8255 CHIP
+PIOSBASE	.EQU	RPH_PPI0		; PIO: PIO REGISTERS BASE ADR FOR SBC PPI
+;
+UFENABLE	.EQU	FALSE		; UF: ENABLE ECB USB FIFO DRIVER (UF.ASM)
+FIFO_BASE	.EQU	$0C		; UF: REGISTERS BASE ADR
+;
+SN76489ENABLE	.EQU	FALSE		; SN76489 SOUND DRIVER
+AUDIOTRACE	.EQU	FALSE		; ENABLE TRACING TO CONSOLE OF SOUND DRIVER
+SN7CLK		.EQU	CPUOSC / 4	; DEFAULT TO CPUOSC / 4
+SNMODE		.EQU	SNMODE_NONE	; DRIVER MODE: SNMODE_[NONE|RC2014|VGM]
+;
+AY38910ENABLE	.EQU	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
+AY_CLK		.EQU	CPUOSC / 4	; DEFAULT TO CPUOSC / 4
+AYMODE		.EQU	AYMODE_N8	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC]
+;
+SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
+;
+DMAENABLE	.EQU	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
+DMABASE		.EQU	$E0		; DMA: DMA BASE ADDRESS
+DMAMODE		.EQU	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC)
diff --git a/Source/HBIOS/cfg_sbc.asm b/Source/HBIOS/cfg_sbc.asm
index d2e9633b..1df79bc0 100644
--- a/Source/HBIOS/cfg_sbc.asm
+++ b/Source/HBIOS/cfg_sbc.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_SBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_SBC		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_38400_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 MPCL_RAM	.EQU	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
 MPCL_ROM	.EQU	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
 ;
diff --git a/Source/HBIOS/cfg_scz180.asm b/Source/HBIOS/cfg_scz180.asm
index 2ba1afe1..def69b57 100644
--- a/Source/HBIOS/cfg_scz180.asm
+++ b/Source/HBIOS/cfg_scz180.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_SCZ180	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_SCZ180	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z180	; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_115200_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 RAMLOC		.EQU	19		; START OF RAM AS POWER OF 2 (2^N) IN PHYSICAL ADDRESS SPACE
 RAMBIAS		.EQU	(1 << (RAMLOC - 10))	; OFFSET OF START OF RAM IN PHYSICAL ADDRESS SPACE
 ;
diff --git a/Source/HBIOS/cfg_una.asm b/Source/HBIOS/cfg_una.asm
index 9d0e2af5..eae041fb 100644
--- a/Source/HBIOS/cfg_una.asm
+++ b/Source/HBIOS/cfg_una.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "../UBIOS/ubios.inc"
 ;
-;PLATFORM	.EQU	PLT_UNA		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+;PLATFORM	.EQU	PLT_UNA		; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 BIOS		.EQU	BIOS_UNA	; HARDWARE BIOS: BIOS_[WBW|UNA]
 ;
 BOOT_TIMEOUT	.EQU	-1		; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE
diff --git a/Source/HBIOS/cfg_zeta.asm b/Source/HBIOS/cfg_zeta.asm
index 1ce35d28..1e6a3f80 100644
--- a/Source/HBIOS/cfg_zeta.asm
+++ b/Source/HBIOS/cfg_zeta.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_ZETA	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_ZETA	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; BIOS_[WBW|UNA]: HARDWARE BIOS
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_38400_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_SBC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 MPCL_RAM	.EQU	$78		; SBC MEM MGR RAM PAGE SELECT REG (WRITE ONLY)
 MPCL_ROM	.EQU	$7C		; SBC MEM MGR ROM PAGE SELECT REG (WRITE ONLY)
 ;
diff --git a/Source/HBIOS/cfg_zeta2.asm b/Source/HBIOS/cfg_zeta2.asm
index fcb12b1c..a0cc2896 100644
--- a/Source/HBIOS/cfg_zeta2.asm
+++ b/Source/HBIOS/cfg_zeta2.asm
@@ -15,7 +15,7 @@
 ;
 #INCLUDE "hbios.inc"
 ;
-PLATFORM	.EQU	PLT_ZETA2	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC]
+PLATFORM	.EQU	PLT_ZETA2	; PLT_[SBC|ZETA|ZETA2|N8|MK4|UNA|RCZ80|RCZ180|EZZ80|SCZ180|DYNO|RCZ280|MBC|RPH]
 CPUFAM		.EQU	CPU_Z80		; CPU FAMILY: CPU_[Z80|Z180|Z280]
 BIOS		.EQU	BIOS_WBW	; HARDWARE BIOS: BIOS_[WBW|UNA]
 BATCOND		.EQU	FALSE		; ENABLE LOW BATTERY WARNING MESSAGE
@@ -33,7 +33,7 @@ DEFSERCFG	.EQU	SER_38400_8N1	; DEFAULT SERIAL LINE CONFIG (SEE STD.ASM)
 ;
 RAMSIZE		.EQU	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE_CHK	.EQU	0		; ROMSIZE VALUE VEREIFICATION (0=DISABLED)
-MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC]
+MEMMGR		.EQU	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280|MBC|RPH]
 MPGSEL_0	.EQU	$78		; Z2 MEM MGR BANK 0 PAGE SELECT REG (WRITE ONLY)
 MPGSEL_1	.EQU	$79		; Z2 MEM MGR BANK 1 PAGE SELECT REG (WRITE ONLY)
 MPGSEL_2	.EQU	$7A		; Z2 MEM MGR BANK 2 PAGE SELECT REG (WRITE ONLY)
diff --git a/Source/HBIOS/hbios.asm b/Source/HBIOS/hbios.asm
index ac6d2980..40900c2a 100644
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@@ -556,6 +556,28 @@ HBX_RAMX:
 HBX_MMA	.DB	0			; TEMPORARY STORAGE FOR REG A
 #ENDIF
 ;
+#IF (MEMMGR == MM_RPH)
+	BIT	7,A			; TEST BIT 7 FOR RAM VS. ROM
+	JR	Z,HBX_ROM		; IF NOT SET, SELECT ROM PAGE
+;
+HBX_RAM:
+	AND	%00011111		; AVOID WRAPPING BITS
+	RLCA				; SCALE SELECTOR TO
+	RLCA				; ... GO FROM Z180 4K PAGE SIZE
+	RLCA				; ... TO DESIRED 32K PAGE SIZE
+	OUT0	(Z180_BBR),A		; WRITE TO BANK BASE
+	LD	A,RPH_DEFACR | 80H	; SELECT RAM BY SETTING BIT 7
+	OUT0	(RPH_ACR),A		; ... IN RPH ACR REGISTER
+	RET				; DONE
+;
+HBX_ROM:
+	OR	RPH_DEFACR		; COMBINE WITH DEFAULT BITS
+	OUT0	(RPH_ACR),A		; BANK INDEX TO RPH ACR REGISTER
+	XOR	A			; ZERO ACCUM
+	OUT0	(Z180_BBR),A		; ZERO BANK BASE
+	RET				; DONE
+#ENDIF
+;
 ;::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
 ; Copy Data - Possibly between banks.  This resembles CP/M 3, but
 ;  usage of the HL and DE registers is reversed.
@@ -1101,6 +1123,11 @@ Z280_BOOTERR	.TEXT	"\r\n\r\n*** Application mode boot not supported under Z280 n
 	OUT0	(N8_ACR),A		; ... REGISTER IS INITIALIZED
 #ENDIF
 ;
+#IF (PLATFORM == PLT_RPH)
+	LD	A,RPH_DEFACR		; ENSURE RPH ACR
+	OUT0	(RPH_ACR),A		; ... REGISTER IS INITIALIZED
+#ENDIF
+;
 #IF (DIAGENABLE)
 	LD	A,%00000001
 	OUT	(DIAGPORT),A
@@ -1238,7 +1265,7 @@ Z280_INITZ:
 	LD	A,$F0
 	OUT0	(Z180_DCNTL),A
 
-  #IF ((MEMMGR == MM_Z180) | (MEMMGR == MM_N8))
+  #IF ((MEMMGR == MM_Z180) | (MEMMGR == MM_N8) | (MEMMGR == MM_RPH))
 	; Z180 MMU SETUP
 	LD	A,$80
 	OUT0	(Z180_CBAR),A		; SETUP FOR 32K/32K BANK CONFIG
@@ -2419,6 +2446,9 @@ HB_Z280BUS1:
 #ENDIF
 #IF (MEMMGR == MM_MBC)
 	.TEXT	"MBC$"
+#ENDIF
+#IF (MEMMGR == MM_RPH)
+	.TEXT	"RPH$"
 #ENDIF
 	CALL	PRTSTRD
 	.TEXT	" MMU$"
diff --git a/Source/HBIOS/hbios.inc b/Source/HBIOS/hbios.inc
index 6168ec24..bce5c5ff 100644
--- a/Source/HBIOS/hbios.inc
+++ b/Source/HBIOS/hbios.inc
@@ -136,6 +136,7 @@ PLT_SCZ180	.EQU	10		; SCZ180
 PLT_DYNO	.EQU	11		; DYNO MICRO-ATX MOTHERBOARD
 PLT_RCZ280	.EQU	12		; RC2014 W/ Z280
 PLT_MBC		.EQU	13		; MULTI BOARD COMPUTER
+PLT_RPH		.EQU	14		; RHYOPHYRE GRAPHICS COMPUTER
 ;
 ; HBIOS GLOBAL ERROR RETURN VALUES
 ;
diff --git a/Source/HBIOS/std.asm b/Source/HBIOS/std.asm
index aa9b12b4..3b51c666 100644
--- a/Source/HBIOS/std.asm
+++ b/Source/HBIOS/std.asm
@@ -15,6 +15,7 @@
 ; 11. DYNO	Steve Garcia's Dyno Micro-ATX Motherboard
 ; 12. RCZ280	Z280 CPU on RC2014 or ZZ80MB
 ; 13. MBC	Andrew Lynch's Multi Board Computer
+; 14. RPH	Andrew Lynch's RHYOPHYRE Graphics Computer
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;
@@ -70,6 +71,7 @@ MM_Z180		.EQU	4		; Z180 NATIVE MEMORY MANAGER
 MM_Z280		.EQU	5		; Z280 NATIVE MEMORY MANAGER
 MM_ZRC		.EQU	6		; ZRC BANK SWITCHING
 MM_MBC		.EQU	7		; MBC MEMORY MANAGER
+MM_RPH		.EQU	8		; Z180 WITH RPH EXTENSIONS
 ;
 ; BOOT STYLE
 ;
@@ -170,6 +172,7 @@ PPIDEMODE_MFP	.EQU	3		; MULTIFUNCTION / PIC
 PPIDEMODE_N8	.EQU	4		; MULTIFUNCTION / PIC
 PPIDEMODE_RC	.EQU	5		; RC2014 PPIDE MODULE @ $20 (ED BRINDLEY)
 PPIDEMODE_DYNO	.EQU	6		; DYNO PPIDE @ $4C
+PPIDEMODE_RPH	.EQU	7		; RHYOPHYRE (RPH)
 ;
 ; SD MODE SELECTIONS
 ;
diff --git a/Source/ver.inc b/Source/ver.inc
index c8a6de03..e8344932 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -2,4 +2,4 @@
 #DEFINE	RMN	1
 #DEFINE	RUP	1
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.1.1-pre.165"
+#DEFINE BIOSVER	"3.1.1-pre.166"
diff --git a/Source/ver.lib b/Source/ver.lib
index 92cf12c1..29b6e66e 100644
--- a/Source/ver.lib
+++ b/Source/ver.lib
@@ -3,5 +3,5 @@ rmn	equ	1
 rup	equ	1
 rtp	equ	0
 biosver	macro
-	db	"3.1.1-pre.165"
+	db	"3.1.1-pre.166"
 	endm