diff --git a/Doc/ChangeLog.txt b/Doc/ChangeLog.txt
index cbe797d5..80b6f996 100644
--- a/Doc/ChangeLog.txt
+++ b/Doc/ChangeLog.txt
@@ -42,6 +42,7 @@ Version 3.1.1
 - PMS: Early DMA support
 - W?S: Updated FLASH software to v1.3.5 (supports 128KB A29010B, 512KB A29040B)
 - DDW: Support for DSKYng capabitlities
+- WBW: Added Phil Summers' ROM Updater into ROM Loader
 
 Version 3.1
 -----------
diff --git a/Source/Apps/tstdskng.asm b/Source/Apps/tstdskng.asm
index dc1927bb..ef34f35d 100644
--- a/Source/Apps/tstdskng.asm
+++ b/Source/Apps/tstdskng.asm
@@ -16,9 +16,9 @@
 FALSE:		.EQU	0
 TRUE:		.EQU	!FALSE
 ;
-DSKY_OSC:	.EQU	1000000		; OSCILLATOR FREQ IN HZ
+DSKY_OSC:	.EQU	3000000		; OSCILLATOR FREQ IN HZ
 ;
-BDOS:		.EQU	FALSE		; BDOS OR DIRECT TO 8250ISH
+BDOS:		.EQU	TRUE		; BDOS OR DIRECT TO 8250ISH
 ;
 UART_BASE:	.EQU 	$68		; UART BASE IO ADDRESS
 PPI_BASE:	.EQU	$60		; PPI BASE IO PORT
@@ -31,7 +31,12 @@ PPI_BASE:	.EQU	$60		; PPI BASE IO PORT
 ;	10    04
 ;	+--08--+  80
 ;
-; KEY CODE MAP (KEY CODES) --CCCRRR
+; KEY CODE MAP (KEY CODES) CSCCCRRR
+;                          ||||||||
+;                          |||||+++-- ROW
+;                          ||+++----- COL
+;                          |+-------- SHIFT
+;                          +--------- CONTROL
 ;
 ;	00	08	10	18	23
 ;	01	09	11	19	22
@@ -85,7 +90,7 @@ DSKY_PRESCL:	.EQU	DSKY_OSC / 100000	; PRESCALER
 	LD	SP,STACK
 ;
 	CALL	PRTSTRD
-	.DB	"\r\nNextGenDSKY Test Program, v1.2, 2021-06-26$"
+	.DB	"\r\nNextGenDSKY Test Program, v1.3, 2021-07-15$"
 	CALL	PRTSTRD
 	.DB	"\r\nPPI port 0x$"
 	LD	A,PPI_BASE
@@ -179,7 +184,7 @@ M1:
 ;
 M2:
 	CALL	CST			; CONSOLE STATUS
-	JR	NZ,M4			; ABORT IF KEY PRESSED
+	JP	NZ,M4			; ABORT IF KEY PRESSED
 	CALL	DSKY_STAT
 	AND	$3F			; DUMP 2 HIGH BITS
 	JR	Z,M2			; LOOP IF STATUS ZERO
@@ -198,6 +203,7 @@ M2:
 M3:
 	PUSH	BC
 	CALL	DSKY_DIN
+	XOR	%11000000		; FLIP CONTROL & SHIFT MODIFIERS
 	CALL	PRTHEXBYTE
 	CALL	PC_SPACE
 	; SHIFT BUFFER
@@ -223,7 +229,7 @@ M3:
 	LD	HL,DSPBUF
 	CALL	DSKY_PUTENCSTR
 	POP	AF
-	; TOGGLE LED, KEY CODE: --CCCRRR
+	; TOGGLE LED, KEY CODE: CSCCCRRR
 	PUSH	AF
 	AND	$07			; ISOLATE ROW
 	LD	B,A			; SAVE IN B
diff --git a/Source/HBIOS/Build.ps1 b/Source/HBIOS/Build.ps1
index faeaee73..42f36900 100644
--- a/Source/HBIOS/Build.ps1
+++ b/Source/HBIOS/Build.ps1
@@ -194,7 +194,7 @@ if ($Platform -ne "UNA")
 "Building ${RomName} output files..."
 
 # Build 32K OS chunk containing the loader, debug monitor, and two OS images
-Concat 'romldr.bin', 'dbgmon.bin', "..\cpm22\cpm_${Bios}.bin", "..\zsdos\zsys_${Bios}.bin" osimg.bin
+Concat 'romldr.bin', 'dbgmon.bin', "..\zsdos\zsys_${Bios}.bin", "..\cpm22\cpm_${Bios}.bin" osimg.bin
 
 # Build 20K OS chunk containing the loader, debug monitor, and one OS image
 Concat 'romldr.bin','dbgmon.bin', "..\zsdos\zsys_${Bios}.bin" osimg_small.bin
@@ -202,8 +202,8 @@ Concat 'romldr.bin','dbgmon.bin', "..\zsdos\zsys_${Bios}.bin" osimg_small.bin
 # Build second and third 32K chunks containing supplemental ROM apps (not for UNA)
 if ($Platform -ne "UNA")
 {
-	Concat '..\Forth\camel80.bin', 'nascom.bin', 'tastybasic.bin', 'game.bin', 'eastaegg.bin', 'usrrom.bin' osimg1.bin
-	Concat 'netboot.mod', 'imgpad2.bin' osimg2.bin
+	Concat '..\Forth\camel80.bin', 'nascom.bin', 'tastybasic.bin', 'game.bin', 'eastaegg.bin', 'netboot.mod', 'updater.bin', 'usrrom.bin' osimg1.bin
+	Concat 'imgpad2.bin' osimg2.bin
 }
 
 #
@@ -258,7 +258,6 @@ else
 	Concat 'hbios_rom.bin','osimg.bin','osimg1.bin','osimg2.bin',$RomDiskFile $RomFile
 	Concat 'hbios_rom.bin','osimg.bin','osimg1.bin','osimg2.bin' $UpdFile
 	Concat 'hbios_app.bin','osimg_small.bin' $ComFile
-	# Concat 'hbios_img.bin','osimg_small.bin' $ImgFile
 }
 
 # Remove the temporary working ROM disk file
diff --git a/Source/HBIOS/Build.sh b/Source/HBIOS/Build.sh
index 21adc95f..65f6b205 100755
--- a/Source/HBIOS/Build.sh
+++ b/Source/HBIOS/Build.sh
@@ -99,21 +99,21 @@ done
 
 cp ../Forth/camel80.bin .
 
-make dbgmon.bin romldr.bin eastaegg.bin imgpad2.bin
+make dbgmon.bin romldr.bin imgpad2.bin
 
 if [ $platform != UNA ] ; then
-	make nascom.bin tastybasic.bin game.bin usrrom.bin imgpad2.bin
+	make nascom.bin tastybasic.bin game.bin eastaegg.bin updater.bin usrrom.bin imgpad2.bin
 	make hbios_rom.bin hbios_app.bin hbios_img.bin
 fi
 
 echo "Building $romname output files..."
 
-cat romldr.bin dbgmon.bin ../CPM22/cpm_$BIOS.bin ../ZSDOS/zsys_$BIOS.bin >osimg.bin
+cat romldr.bin dbgmon.bin ../ZSDOS/zsys_$BIOS.bin ../CPM22/cpm_$BIOS.bin >osimg.bin
 cat romldr.bin dbgmon.bin ../ZSDOS/zsys_$BIOS.bin >osimg_small.bin
 
 if [ $platform != UNA ] ; then
-	cat camel80.bin nascom.bin tastybasic.bin game.bin eastaegg.bin usrrom.bin >osimg1.bin
-	cat netboot.mod imgpad2.bin >osimg2.bin
+	cat camel80.bin nascom.bin tastybasic.bin game.bin eastaegg.bin netboot.mod updater.bin usrrom.bin >osimg1.bin
+	cat imgpad2.bin >osimg2.bin
 fi
 
 echo "Building ${romsize}KB $romname ROM disk data file..."
@@ -165,7 +165,4 @@ else
 	cat hbios_rom.bin osimg.bin osimg1.bin osimg2.bin $romdiskfile >$romname.rom
 	cat hbios_rom.bin osimg.bin osimg1.bin osimg2.bin >$romname.upd
 	cat hbios_app.bin osimg_small.bin > $romname.com
-	# cat hbios_img.bin osimg_small.bin > $romname.img
 fi
-
-#rm $romdiskfile
diff --git a/Source/HBIOS/Makefile b/Source/HBIOS/Makefile
index df3845ff..a6edb1b0 100644
--- a/Source/HBIOS/Makefile
+++ b/Source/HBIOS/Makefile
@@ -37,7 +37,7 @@ endif
 MOREDIFF = camel80.bin game.bin hbios_rom.bin nascom.bin prefix.bin usrrom.bin \
 	dbgmon.bin hbios_app.bin imgpad2.bin osimg1.bin osimg2.bin romldr.bin \
 	eastaegg.bin hbios_img.bin osimg.bin tastybasic.bin \
-	game.bin usrrom.bin
+	game.bin updater.bin usrrom.bin
 
 SUBDIRS =
 DEST = ../../Binary
@@ -81,6 +81,7 @@ romldr.bin:	build.inc
 dbgmon.bin:	build.inc
 nascom.bin:	build.inc
 eastaegg.bin:	build.inc
+updater.bin:	build.inc
 
 dumps:
 	for i in $(MOREDIFF) ; do \
diff --git a/Source/HBIOS/PPI_Bus.txt b/Source/HBIOS/PPI_Bus.txt
new file mode 100644
index 00000000..7b5fa7d9
--- /dev/null
+++ b/Source/HBIOS/PPI_Bus.txt
@@ -0,0 +1,39 @@
+
+PPI Signal	PPIDE		PPISD		DSKY		DSKYNG (PROTO)	DSKYNG (FINAL)
+----------	-----		-----		-----		-----		-----
+PA0		<>D0				>ID0		<>D0		<>D0
+PA1		<>D1                            >ID1		<>D1		<>D1
+PA2		<>D2                            >ID2		<>D2		<>D2
+PA3		<>D3                            >ID3		<>D3		<>D3
+PA4		<>D4                            >ID4 /SHUTDOWN	<>D4		<>D4
+PA5		<>D5                            >ID5 /DECODE	<>D5		<>D5
+PA6		<>D6                            >ID6 HEXA/CODEB	<>D6		<>D6
+PA7		<>D7                            >ID7 DAT_COMING	<>D7		<>D7
+
+PB0		<>D8				+<ROW5                          
+PB1             <>D9				+<ROW4                          
+PB2             <>D10				+<ROW3                          
+PB3             <>D11				+<ROW2                          
+PB4             <>D12                           +<ROW1                          
+PB5             <>D13                           +<ROW0                          
+PB6             <>D14				+                               
+PB7             <>D15		<MISO		+                               
+
+PC0		>DA0		>MOSI		>COL0		>A0		>A0
+PC1		>DA1		>CLK		>COL1           		>/WR                
+PC2		>DA2				>COL2           		>/RD                
+PC3		>CS0*				>COL3		>CS&*		>CS&*
+PC4		>CS1*		>/CS				>CS&*		>CS&*
+PC5		>DIOW*						>/WR
+PC6		>DIOR*				>/WR		>/RD
+PC7		>RESET*				>MODE		>RESET		>RESET
+
+* Inverted by adapter
++ Pullup
+& Both signals must be asserted
+
+Compatibility:
+
+- PPISD & DSKY
+- PPIDE & DSKYNG
+- PPISD & DSKYNG
diff --git a/Source/HBIOS/dbgmon.asm b/Source/HBIOS/dbgmon.asm
index 90bf9193..9bae4ef8 100644
--- a/Source/HBIOS/dbgmon.asm
+++ b/Source/HBIOS/dbgmon.asm
@@ -994,7 +994,7 @@ DSKY_ENTRY:
 ;
 FRONTPANELLOOP:
 	LD	HL,CPUUP		; SET POINTER TO CPU UP MSG
-	CALL	DSKY_SHOWSEG		; DISPLAY UNENCODED
+	CALL	DSKY_SHOW		; DISPLAY UNENCODED
 
   #IF (DSKYMODE == DSKYMODE_NG)
 	CALL 	DSKY_HIGHLIGHTCMDKEYS
@@ -1030,7 +1030,7 @@ FRONTPANELLOOP1:
 ;
 DOBOOT:
 	LD	HL,MSGBOOT		; SET POINTER TO BOOT MESSAGE
-	CALL	DSKY_SHOWSEG		; DISPLAY UNENCODED
+	CALL	DSKY_SHOW		; DISPLAY UNENCODED
 	JP	BOOT			; DO BOOT
 ;
 ;__DOPORTREAD_________________________________________________________________
@@ -1425,7 +1425,7 @@ ENCBUF1:
 	POP	HL			; RESTORE POINTER
 	DJNZ	ENCBUF1			; LOOP THRU ALL BUF POSITIONS
 	LD	HL,DSKY_BUF		; POINT TO DECODED BUFFER
-	CALL	DSKY_SHOWSEG		; DISPLAY IT
+	CALL	DSKY_SHOW		; DISPLAY IT
 	POP	DE			; RESTORE DE
 	POP	BC			; RESTORE BC
 	POP	AF			; RESTORE AF
diff --git a/Source/HBIOS/dsky.asm b/Source/HBIOS/dsky.asm
index 464836cd..fb7326d4 100644
--- a/Source/HBIOS/dsky.asm
+++ b/Source/HBIOS/dsky.asm
@@ -4,31 +4,7 @@
 ;==================================================================================================
 ;
 ; THE DSKY MAY COSESIDE ON THE SAME PPI BUS AS A PPISD.  IT MAY NOT
-; SHARE A PPI BUS WITH A PPIDE.
-;
-PPIA		.EQU 	DSKYPPIBASE + 0	; PORT A
-PPIB		.EQU 	DSKYPPIBASE + 1	; PORT B
-PPIC		.EQU 	DSKYPPIBASE + 2	; PORT C
-PPIX	 	.EQU 	DSKYPPIBASE + 3	; PPI CONTROL PORT
-;
-;		ICM7218A	KEYPAD		PPISD
-;		--------	--------	--------
-; PA0-7		IO0-7
-; PB0-5				COLS 0-5
-; PB6
-; PB7						DO (<SD)
-; PC0				ROW 0		DI (>SD)
-; PC1				ROW 1		CLK (>SD)
-; PC2-3				ROWS 2-3
-; PC4						/CS (PRI)
-; PC5						/CS (SEC)
-; PC6		/WR
-; PC7		MODE
-;
-; DSKY SCAN CODES ARE ONE BYTE: CCRRRRRR
-; BITS 7-6 IDENTFY THE COLUMN OF THE KEY PRESSED
-; BITS 5-0 ARE A BITMAP, WITH A BIT ON TO INDICATE ROW OF KEY PRESSED
-;
+; SHARE A PPI BUS WITH A PPIDE.  SEE PPI_BUS.TXT FOR MORE INFORMATION.
 ;
 ; LED SEGMENTS (BIT VALUES)
 ;
@@ -38,6 +14,10 @@ PPIX	 	.EQU 	DSKYPPIBASE + 3	; PPI CONTROL PORT
 ;	08    10
 ;	+--01--+  80
 ;
+; DSKY SCAN CODES ARE ONE BYTE: CCRRRRRR
+; BITS 7-6 IDENTFY THE COLUMN OF THE KEY PRESSED
+; BITS 5-0 ARE A BITMAP, WITH A BIT ON TO INDICATE ROW OF KEY PRESSED
+;
 ;      ____PC0________PC1________PC2________PC3____
 ; PB5 |	 $20 [D]    $60 [E]    $A0 [F]	  $E0 [BO]
 ; PB4 |	 $10 [A]    $50 [B]    $90 [C]	  $D0 [GO]
@@ -46,6 +26,12 @@ PPIX	 	.EQU 	DSKYPPIBASE + 3	; PPI CONTROL PORT
 ; PB1 |	 $02 [1]    $42 [2]    $82 [3]	  $C2 [EN]
 ; PB0 |	 $01 [FW]   $41 [0]    $81 [BK]	  $C1 [CL]
 ;
+;
+PPIA		.EQU 	DSKYPPIBASE + 0	; PORT A
+PPIB		.EQU 	DSKYPPIBASE + 1	; PORT B
+PPIC		.EQU 	DSKYPPIBASE + 2	; PORT C
+PPIX	 	.EQU 	DSKYPPIBASE + 3	; PPI CONTROL PORT
+;
 ;__DSKY_INIT_________________________________________________________________________________________
 ;
 ;  CONFIGURE PARALLEL PORT AND CLEAR KEYPAD BUFFER
@@ -240,51 +226,57 @@ DSKY_KEYBUF	.DB	0
 #ENDIF	; DSKY_KBD
 ;
 ;==================================================================================================
-; DSKY HEX DISPLAY
+; CONVERT 32 BIT BINARY TO 8 BYTE HEX SEGMENT DISPLAY
 ;==================================================================================================
 ;
-DSKY_HEXOUT:
-	LD	B,DSKY_HEXBUFLEN
-	LD	HL,DSKY_BUF
-	LD	DE,DSKY_HEXBUF
-DSKY_HEXOUT1:
+; HL: ADR OF 32 BIT BINARY
+; DE: ADR OF DEST LED SEGMENT DISPLAY BUFFER (8 BYTES)
+;
+DSKY_BIN2SEG:
+	PUSH	HL
+	PUSH	DE
+	LD	B,4			; 4 BYTES OF INPUT
+	EX	DE,HL
+DSKY_BIN2SEG1:
 	LD	A,(DE)			; FIRST NIBBLE
 	SRL	A
 	SRL	A
 	SRL	A
 	SRL	A
+	PUSH	HL
+	LD	HL,DSKY_HEXMAP
+	CALL	DSKY_ADDHLA
+	LD	A,(HL)
+	POP	HL
 	LD	(HL),A
 	INC	HL
 	LD	A,(DE)			; SECOND NIBBLE
 	AND	0FH
+	PUSH	HL
+	LD	HL,DSKY_HEXMAP
+	CALL	DSKY_ADDHLA
+	LD	A,(HL)
+	POP	HL
 	LD	(HL),A
 	INC	HL
 	INC	DE			; NEXT BYTE
-	DJNZ	DSKY_HEXOUT1
-	LD	HL,DSKY_BUF
-	JR	DSKY_SHOWHEX
+	DJNZ	DSKY_BIN2SEG1
+	POP	DE
+	POP	HL
+	RET
 ;
 ;==================================================================================================
 ; DSKY SHOW BUFFER
 ;   HL: ADDRESS OF BUFFER
-;   ENTER @ SHOWHEX FOR HEX DECODING
-;   ENTER @ SHOWSEG FOR SEGMENT DECODING
 ;==================================================================================================
 ;
-DSKY_SHOWHEX:
-	LD	A,$D0			; 7218 -> (DATA COMING, HEXA DECODE)
-	JR	DSKY_SHOW
-;
-DSKY_SHOWSEG:
-	LD	A,$F0			; 7218 -> (DATA COMING, NO DECODE)
-	JR	DSKY_SHOW
-;
 DSKY_SHOW:
-	PUSH	AF			; SAVE 7218 CONTROL BITS
+	;;PUSH	AF			; SAVE 7218 CONTROL BITS
 	LD	A,82H			; SETUP PPI
 	OUT	(PPIX),A
 	CALL	DSKY_COFF
-	POP	AF
+	;;POP	AF
+	LD	A,$F0			; 7218 -> (DATA COMING, NO DECODE)
 	OUT	(PPIA),A
 	CALL	DSKY_STROBEC		; STROBE COMMAND
 	LD	B,DSKY_BUFLEN		; NUMBER OF DIGITS
@@ -313,11 +305,26 @@ DSKY_COFF:
 ;	CALL	DSKY_DELAY		; WAIT
 	RET
 ;
+;==================================================================================================
+; UTILTITY FUNCTIONS
+;==================================================================================================
+;
+DSKY_ADDHLA:
+	ADD	A,L
+	LD	L,A
+	RET	NC
+	INC	H
+	RET
+;
+;==================================================================================================
+; STORAGE
+;==================================================================================================
+;
 ; CODES FOR NUMERICS
-; HIGH BIT ALWAYS SET TO SUPPRESS DECIMAL POINT
-; CLEAR HIGH BIT TO SHOW DECIMAL POINT
+; HIGH BIT ALWAYS CLEAR TO SUPPRESS DECIMAL POINT
+; SET HIGH BIT TO SHOW DECIMAL POINT
 ;
-DSKY_NUMS:
+DSKY_HEXMAP:
 	.DB	$7B	; 0
 	.DB	$30	; 1
 	.DB	$6D	; 2
diff --git a/Source/HBIOS/dskyng.asm b/Source/HBIOS/dskyng.asm
index e351e925..2e4ba36d 100644
--- a/Source/HBIOS/dskyng.asm
+++ b/Source/HBIOS/dskyng.asm
@@ -4,6 +4,7 @@
 ;==================================================================================================
 ;
 ; A DSKYNG CAN SHARE A PPI BUS WITH EITHER A PPIDE OR PPISD.
+;   SEE PPI_BUS.TXT FOR MORE INFORMATION.
 ;
 ; LED SEGMENTS (BIT VALUES)
 ;
@@ -13,7 +14,12 @@
 ;	10    04
 ;	+--08--+  80
 ;
-; KEY CODE MAP (KEY CODES) --CCCRRR
+; KEY CODE MAP (KEY CODES) CSCCCRRR
+;                          ||||||||
+;                          |||||+++-- ROW
+;                          ||+++----- COL
+;                          |+-------- SHIFT
+;                          +--------- CONTROL
 ;
 ;	00	08	10	18	23
 ;	01	09	11	19	22
@@ -147,7 +153,9 @@ DSKY_GETKEY:
 	LD	A,DSKY_CMD_FIFO
 	CALL	DSKY_CMD
 	CALL	DSKY_DIN
-	AND	$3F			; STRIP OFF SHIFT AND CONTROL KEYS (FOR NOW)
+	XOR	%11000000		; FLIP POLARITY OF SHIFT/CTL BITS
+	PUSH	AF			; SAVE VALUE
+	AND	$3F			; STRIP SHIFT/CTL BITS FOR LOOKUP
 	LD	B,28			; SIZE OF DECODE TABLE
 	LD	C,0			; INDEX
 	LD	HL,DSKY_KEYMAP		; POINT TO BEGINNING OF TABLE
@@ -157,11 +165,15 @@ DSKY_GETKEY1:
 	INC	HL
 	INC	C			; BUMP INDEX
 	DJNZ	DSKY_GETKEY1		; LOOP UNTIL EOT
+	POP	AF			; FIX STACK
 	LD	A,$FF			; NOT FOUND ERR, RETURN $FF
 	RET
 DSKY_GETKEY2:
 	; RETURN THE INDEX POSITION WHERE THE SCAN CODE WAS FOUND
-	LD	A,C			; RETURN INDEX VALUE
+	; THE ORIGINAL SHIFT/CTRL BITS ARE RESTORED
+	POP	AF			; RESTORE RAW VALUE
+	AND	%11000000		; ISOLATE SHIFT/CTRL BITS
+	OR	C			; COMBINE WITH INDEX VALUE
 	RET
 ;
 ;_KEYMAP_TABLE_____________________________________________________________________________________________________________
@@ -187,21 +199,25 @@ DSKY_KEYMAP:
 #ENDIF	; DSKY_KBD
 ;
 ;==================================================================================================
-; DSKY HEX DISPLAY
+; CONVERT 32 BIT BINARY TO 8 BYTE HEX SEGMENT DISPLAY
 ;==================================================================================================
 ;
-DSKY_HEXOUT:
-	LD	B,DSKY_HEXBUFLEN
-	LD	HL,DSKY_BUF
-	LD	DE,DSKY_HEXBUF
-DSKY_HEXOUT1:
+; HL: ADR OF 32 BIT BINARY
+; DE: ADR OF DEST LED SEGMENT DISPLAY BUFFER (8 BYTES)
+;
+DSKY_BIN2SEG:
+	PUSH	HL
+	PUSH	DE
+	LD	B,4			; 4 BYTES OF INPUT
+	EX	DE,HL
+DSKY_BIN2SEG1:
 	LD	A,(DE)			; FIRST NIBBLE
 	SRL	A
 	SRL	A
 	SRL	A
 	SRL	A
 	PUSH	HL
-	LD	HL,HEXMAP
+	LD	HL,DSKY_HEXMAP
 	CALL	DSKY_ADDHLA
 	LD	A,(HL)
 	POP	HL
@@ -210,49 +226,40 @@ DSKY_HEXOUT1:
 	LD	A,(DE)			; SECOND NIBBLE
 	AND	0FH
 	PUSH	HL
-	LD	HL,HEXMAP
+	LD	HL,DSKY_HEXMAP
 	CALL	DSKY_ADDHLA
 	LD	A,(HL)
 	POP	HL
 	LD	(HL),A
 	INC	HL
 	INC	DE			; NEXT BYTE
-	DJNZ	DSKY_HEXOUT1
-	LD	HL,DSKY_BUF
-	JR	DSKY_SHOW
+	DJNZ	DSKY_BIN2SEG1
+	POP	DE
+	POP	HL
+	RET
 ;
 ;==================================================================================================
 ; DSKY SHOW BUFFER
 ;   HL: ADDRESS OF BUFFER
-;   ENTER @ SHOWHEX FOR HEX DECODING
-;   ENTER @ SHOWSEG FOR SEGMENT DECODING
 ;==================================================================================================
 ;
-DSKY_SHOWHEX:
-	JR	DSKY_SHOW
-;
-DSKY_SHOWSEG:
-	JR	DSKY_SHOW
-;
 DSKY_SHOW:
-;	PUSH	HL
-;	CALL	DSKY_RESET
-;	POP	HL
 	LD	C,0			; STARTING DISPLAY POSITION
 	LD	B,DSKY_BUFLEN		; NUMBER OF CHARS
 	JP	DSKY_PUTSTR
 ;
+;==================================================================================================
+; DSKYNG OUTPUT ROUTINES
+;==================================================================================================
 ;
-;
-;
-; COMMAND IN A
+; SEND DSKY COMMAND BYTE IN REGISTER A
 ; TRASHES BC
 ;
 DSKY_CMD:
 	LD	B,$01
 	JR	DSKY_DOUT2
 ;
-; DATA VALUE IN A
+; SEND DSKY DATA BYTE IN REGISTER A
 ; TRASHES BC
 ;
 DSKY_DOUT:
@@ -306,21 +313,25 @@ DSKY_DOUT2:
 	CALL	DSKY_PPIIDLE
 	RET
 ;
-; STATUS VALUE IN A
+;==================================================================================================
+; DSKYNG OUTPUT ROUTINES
+;==================================================================================================
+;
+; RETURN DSKY STATUS VALUE IN A
 ; TRASHES BC
 ;
 DSKY_ST:
 	LD	B,$01
 	JR	DSKY_DIN2
 ;
-; DATA VALUE RETURNED IN A
+; RETURN NEXT DATA VALUE IN A
 ; TRASHES BC
 ;
 DSKY_DIN:
 	LD	B,$00
 ;
 DSKY_DIN2:
-	; SET PPI LINE CONFIG TO WRITE MODE
+	; SET PPI LINE CONFIG TO READ MODE
 	CALL	DSKY_PPIRD
 ;
 	; SETUP
@@ -363,7 +374,11 @@ DSKY_DIN2:
 	CALL	DSKY_PPIIDLE
 	RET
 ;
-; BLANK THE DISPLAY (WITHOUT USING CLEAR)
+;==================================================================================================
+; DSKYNG UTILITY ROUTINES
+;==================================================================================================
+;
+; BLANK DSKYNG DISPLAY  (WITHOUT USING CLEAR)
 ;
 DSKY_BLANK:
 	LD	A,DSKY_CMD_WDSP
@@ -445,39 +460,13 @@ DSKY_GETSTR1:
 	DJNZ	DSKY_GETSTR1
 	RET
 ;
-; HL IS ADR OF ENCODED STRING OF BYTES
-; B IS LEN OF STRING (BYTES)
-; C IS POSITION IN DISPLAY RAM TO WRITE
-;
-DSKY_PUTENCSTR:
-	PUSH	BC
-	LD	A,C
-	ADD	A,DSKY_CMD_WDSP
-	CALL	DSKY_CMD
-	POP	BC
-	EX	DE,HL
-DSKY_PUTENCSTR1:
-	LD	A,(DE)
-	INC	DE
-	LD	HL,HEXMAP
-	CALL	DSKY_ADDHLA
-	LD	A,(HL)
-	XOR	$FF
-	PUSH	BC
-	CALL	DSKY_DOUT
-	POP	BC
-	DJNZ	DSKY_PUTENCSTR1
-	RET
-
-;
-;	This function is intended to update the LEDs.  It expects 8 bytes following the call, and
-;	updates the entire matrix.
+;	This function is intended to update the LEDs.  It expects 8 bytes
+;	following the call, and	updates the entire matrix.
 ;
 ;  EXAMPLE:
 ;	CALL 	DSKY_PUTLED
 ;	.DB 	$00,$00,$00,$00,$00,$00,$00,$00
 ;
-;
 DSKY_PUTLED:
         EX	(SP),HL
 	PUSH	AF
@@ -497,41 +486,38 @@ DSKY_PUTLED_1:
         POP	AF
 	EX	(SP),HL
 	RET
-
 ;
 ;	This function is intended to beep the speaker on the DSKY
 ;
-;
 DSKY_BEEP:
 	PUSH	AF
 	PUSH	BC
 
 	LD 	C,$0F
 	CALL	DSKY_GETBYTE
-	or 	$20
+	OR 	$20
 	LD 	C,$0F
 	CALL	DSKY_PUTBYTE
 
 ;;; 	timer . . .
 	PUSH	HL
-	ld 	hl,$8FFF
+	LD 	hl,$8FFF
 DSKY_BEEP1:
-	dec 	hl
-	ld 	a,H
-	cp 	0
-	jp 	nz,DSKY_BEEP1
-	pop 	hl
+	DEC 	HL
+	LD 	A,H
+	CP 	0
+	JP 	NZ,DSKY_BEEP1
+	POP 	HL
 
 	LD 	C,$0F
 	CALL	DSKY_GETBYTE
-	and  	$DF
+	AND  	$DF
 	LD 	C,$0F
 	CALL	DSKY_PUTBYTE
 
 	POP	BC
         POP	AF
 	RET
-
 ;
 ;	This function is intended to turn on DSKY L1
 ;
@@ -541,14 +527,13 @@ DSKY_L1ON:
 
 	LD 	C,$0D
 	CALL	DSKY_GETBYTE
-	or 	$20
+	OR 	$20
 	LD 	C,$0D
 	CALL	DSKY_PUTBYTE
 
 	POP	BC
         POP	AF
 	RET
-
 ;
 ;	This function is intended to turn on DSKY L2
 ;
@@ -558,14 +543,13 @@ DSKY_L2ON:
 
 	LD 	C,$0E
 	CALL	DSKY_GETBYTE
-	and 	$DF
+	OR 	$20
 	LD 	C,$0E
 	CALL	DSKY_PUTBYTE
 
 	POP	BC
         POP	AF
 	RET
-
 ;
 ;	This function is intended to turn off DSKY L1
 ;
@@ -575,14 +559,13 @@ DSKY_L1OFF:
 
 	LD 	C,$0D
 	CALL	DSKY_GETBYTE
-	and 	$DF
+	AND 	$DF
 	LD 	C,$0D
 	CALL	DSKY_PUTBYTE
 
 	POP	BC
         POP	AF
 	RET
-
 ;
 ;	This function is intended to turn off DSKY L2
 ;
@@ -592,16 +575,17 @@ DSKY_L2OFF:
 
 	LD 	C,$0E
 	CALL	DSKY_GETBYTE
-	or 	$20
+	AND 	$DF
 	LD 	C,$0E
 	CALL	DSKY_PUTBYTE
 
 	POP	BC
         POP	AF
 	RET
-
-
-
+;
+;==================================================================================================
+; DSKYNG LINE CONTROL ROUTINES
+;==================================================================================================
 ;
 ; SETUP PPI FOR WRITING: PUT PPI PORT A IN OUTPUT MODE
 ; AVOID REWRTING PPIX IF ALREADY IN OUTPUT MODE
@@ -628,15 +612,6 @@ DSKY_PPIWR1:
 	POP	AF
 	RET
 ;
-;
-;
-DSKY_ADDHLA:
-	ADD	A,L
-	LD	L,A
-	RET	NC
-	INC	H
-	RET
-;
 ; SETUP PPI FOR READING: PUT PPI PORT A IN INPUT MODE
 ; AVOID REWRTING PPIX IF ALREADY IN INPUT MODE
 ;
@@ -653,10 +628,6 @@ DSKY_PPIRD:
 	OUT	(PPIX),A
 	LD	(DSKY_PPIX_VAL),A
 ;
-;	; DIAGNOSTIC
-;	LD	A,'R'
-;	CALL	COUT
-;
 DSKY_PPIRD1:
 	POP	AF
 	RET
@@ -666,16 +637,26 @@ DSKY_PPIRD1:
 DSKY_PPIIDLE:
 	JR	DSKY_PPIRD		; SAME AS READ MODE
 ;
+;==================================================================================================
+; UTILTITY FUNCTIONS
+;==================================================================================================
 ;
+DSKY_ADDHLA:
+	ADD	A,L
+	LD	L,A
+	RET	NC
+	INC	H
+	RET
 ;
-
+;==================================================================================================
+; STORAGE
+;==================================================================================================
 ;
 ; CODES FOR NUMERICS
-; HIGH BIT ALWAYS SET TO SUPPRESS DECIMAL POINT
-; CLEAR HIGH BIT TO SHOW DECIMAL POINT
+; HIGH BIT ALWAYS CLEAR TO SUPPRESS DECIMAL POINT
+; SET HIGH BIT TO SHOW DECIMAL POINT
 ;
-HEXMAP:
-DSKY_NUMS:
+DSKY_HEXMAP:
 	.DB	$3F	; 0
 	.DB	$06	; 1
 	.DB	$5B	; 2
diff --git a/Source/HBIOS/hbios.asm b/Source/HBIOS/hbios.asm
index bed652b6..01f951a6 100644
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@@ -1431,20 +1431,18 @@ SAVE_REC_M:
 	CALL	DSKY_INIT
 
 	LD	HL,MSG_HBVER +  5
-	LD	A,(DSKY_NUMS + RMJ)
-	;AND	$7F
+	LD	A,(DSKY_HEXMAP + RMJ)
 	OR	$80
 	LD	(HL),A
 	INC	HL
-	LD	A,(DSKY_NUMS + RMN)
-	;AND	$7F
+	LD	A,(DSKY_HEXMAP + RMN)
 	OR	$80
 	LD	(HL),A
 	INC	HL
-	LD	A,(DSKY_NUMS + RUP)
+	LD	A,(DSKY_HEXMAP + RUP)
 	LD	(HL),A
 	LD	HL,MSG_HBVER
-	CALL	DSKY_SHOWSEG
+	CALL	DSKY_SHOW
 #ENDIF
 ;
 #IF (WBWDEBUG == USEMIO)		; BUFFER OUTPUT UNTIL
@@ -2862,7 +2860,11 @@ HB_DSKFUNC	.DB	0		; CURRENT DISK FUNCTION
 ;
 ; THE CURRENT DISK UNIT NUMBER WILL BE DISPLAYED IN THE FIRST
 ; 2 SEG DISPLAYS.  THE LOWER 24 BITS OF THE SECTOR WILL BE
-; DISPLAYED IN THE LAST 6 SEG DISPLAYS
+; DISPLAYED IN THE LAST 6 SEG DISPLAYS.
+;
+; A DOT IS DISPLAYED TO SEPARATE THE UNIT NUMBER FROM THE ADDRESS
+; DISPLAY.  ALSO, A TRAILING DOT IS DISPLAYED IF THE I/O FUNCTION
+; IS A WRITE.
 ;
 ;   HL: ADDRESS OF 32-BIT SECTOR NUMBER (LITTLE-ENDIAN)
 ;   ALL REGISTERS PERSERVED
@@ -2882,7 +2884,22 @@ HB_DSKACT1:
 	DJNZ	HB_DSKACT1		; LOOP
 	LD	A,(HB_DSKUNIT)		; GET DISK UNIT NUM
 	LD	(DE),A			; PUT AT HEAD OF BUF
-	CALL	DSKY_HEXOUT		; DISPLAY ON DSKY
+HB_DSKACT2:
+	LD	HL,DSKY_HEXBUF		; BINARY BUF
+	LD	DE,DSKY_BUF		; DISPLAY BUF
+	CALL	DSKY_BIN2SEG		; CONVERT TO SEG DISPLAY BUF
+	LD	A,(DSKY_BUF+1)		; SECOND SEGMENT
+	OR	%10000000		; TURN ON DOT
+	LD	(DSKY_BUF+1),A		; SAVE IT
+	LD	A,(HB_DSKFUNC)		; GET CURRENT I/O FUNCTION
+	CP	BF_DIOWRITE		; IS IT A WRITE?
+	JR	NZ,HB_DSKACT3		; IF NOT, NO DOT, SKIP AHEAD
+	LD	A,(DSKY_BUF+7)		; LAST SEGMENT
+	OR	%10000000		; TURN ON DOT
+	LD	(DSKY_BUF+7),A		; SAVE IT
+HB_DSKACT3:
+	EX	DE,HL			; SEG DISPLAY BUF TO HL
+	CALL	DSKY_SHOW		; DISPLAY ON DSKY
 	POP	HL
 	POP	DE
 	POP	BC
@@ -2892,6 +2909,10 @@ HB_DSKACT1:
 ; THIS IS THE CHS VARIANT OF THE ABOVE.  THIS IS USED BY CHS ORIENTED
 ; DISK DRIVERS (BASICALLY JUST FLOPPY).
 ;
+; THE CURRENT DISK UNIT NUMBER WILL BE DISPLAYED IN THE FIRST
+; 2 SEG DISPLAYS.  THE TRACK, HEAD, AND SECTOR WILL BE DISPLAYED IN
+; THE LAST 6 SEG DISPLAYS
+;
 ;   HL: ADDRESS OF CYL,HD,SEC IN THE FORMAT CCSH
 ;   ALL REGISTERS PRESERVED
 ;
@@ -2916,14 +2937,7 @@ HB_DSKACTCHS:
 	DEC	HL			; BACK TO SECTOR
 	LD	A,(HL)			; GET SECTOR
 	LD	(DE),A			; ADD TO BUF
-	CALL	DSKY_HEXOUT		; DISPLAY ON DSKY
-	POP	HL
-	POP	DE
-	POP	BC
-	POP	AF
-	RET
-;
-HB_HEXBUF	.FILL	4,0		; 4 BYTE HEX DISPLAY BUFFER
+	JR	HB_DSKACT2
 ;
 #ENDIF
 ;
diff --git a/Source/HBIOS/imgpad.asm b/Source/HBIOS/imgpad.asm
deleted file mode 100644
index 8ca47e5d..00000000
--- a/Source/HBIOS/imgpad.asm
+++ /dev/null
@@ -1,12 +0,0 @@
-#INCLUDE "std.asm"
-;
-SLACK		.EQU	($8000-LDR_SIZ-MON_SIZ-SYS_SIZ-SYS_SIZ-EGG_SIZ)
-		.FILL	SLACK,00H
-;
-MON_STACK	.EQU	$
-;
-		.ECHO	"Padspace space created: "
-		.ECHO	SLACK
-		.ECHO	" bytes.\n"
-
-		.END
diff --git a/Source/HBIOS/imgpad2.asm b/Source/HBIOS/imgpad2.asm
index 6a2ad74c..43099f3d 100644
--- a/Source/HBIOS/imgpad2.asm
+++ b/Source/HBIOS/imgpad2.asm
@@ -1,9 +1,7 @@
 #INCLUDE "std.asm"
 ;
-SLACK		.EQU	($8000-NET_SIZ)
+SLACK		.EQU	$8000
 		.FILL	SLACK,00H
-;
-MON_STACK	.EQU	$
 ;
 		.ECHO	"Padspace space created: "
 		.ECHO	SLACK
diff --git a/Source/HBIOS/netboot.mod b/Source/HBIOS/netboot.mod
index 12ee0b55..674d9e9b 100644
Binary files a/Source/HBIOS/netboot.mod and b/Source/HBIOS/netboot.mod differ
diff --git a/Source/HBIOS/romldr.asm b/Source/HBIOS/romldr.asm
index d1ceeeb2..5d267ad7 100644
--- a/Source/HBIOS/romldr.asm
+++ b/Source/HBIOS/romldr.asm
@@ -208,11 +208,11 @@ prompt:
 #if (DSKYENABLE)
 	call	DSKY_RESET		; clear DSKY
 	ld	hl,msg_sel		; boot select msg
-	call	DSKY_SHOWSEG		; show on DSKY
+	call	DSKY_SHOW		; show on DSKY
 
  #IF (DSKYMODE == DSKYMODE_NG)
-	CALL 	DSKY_PUTLED
-	.DB 	$3f,$3f,$3f,$3f,$00,$00,$00,$00
+	call 	DSKY_PUTLED
+	.db 	$3f,$3f,$3f,$3f,$00,$00,$00,$00
 	call 	DSKY_BEEP
 	call 	DSKY_L2ON
  #ENDIF
@@ -267,6 +267,14 @@ clrbuf1:
 ;
 concmd:
 	call	clrled			; clear LEDs
+;
+#if (DSKYENABLE)
+  #if (DSKYMODE == DSKYMODE_NG)
+	call 	DSKY_PUTLED
+	.db 	$00,$00,$00,$00,$00,$00,$00,$00
+	call 	DSKY_L2OFF
+  #endif
+#endif
 ;
 	; Get a command line from console and handle it
 	call	rdln			; get a line from the user
@@ -369,13 +377,12 @@ dskycmd:
 	cp	$FF			; check for error
 	ret	z			; abort if so
 ;
-
- #IF (DSKYMODE == DSKYMODE_NG)
-	CALL 	DSKY_PUTLED
-	.DB 	$00,$00,$00,$00,$00,$00,$00,$00
+  #if (DSKYMODE == DSKYMODE_NG)
+	call 	DSKY_PUTLED
+	.db 	$00,$00,$00,$00,$00,$00,$00,$00
 	call 	DSKY_L2OFF
- #ENDIF
-
+  #endif
+;
 	; Attempt built-in commands
 	cp	KY_BO			; reboot system
 	jp	z,reboot		; if so, do it
@@ -599,7 +606,7 @@ reboot:
 ;
 #if (DSKYENABLE)
 	ld	hl,msg_boot		; point to boot message
-	call	DSKY_SHOWSEG		; display message
+	call	DSKY_SHOW		; display message
 #endif
 ;
 	; cold boot system
@@ -631,7 +638,7 @@ romload:
 ;
 #if (DSKYENABLE)
 	ld	hl,msg_load		; point to load message
-	call	DSKY_SHOWSEG		; display message
+	call	DSKY_SHOW		; display message
 #endif
 ;
 #if (BIOS == BIOS_WBW)
@@ -715,7 +722,7 @@ romload1:
 ;
 #if (DSKYENABLE)
 	ld	hl,msg_go		; point to go message
-	call	DSKY_SHOWSEG		; display message
+	call	DSKY_SHOW		; display message
 #endif
 ;
 	ld	l,(ix+ra_ent)		; HL := app entry address
@@ -740,7 +747,7 @@ diskboot:
 ;
 #if (DSKYENABLE)
 	ld	hl,msg_load		; point to load message
-	call	DSKY_SHOWSEG		; display message
+	call	DSKY_SHOW		; display message
 #endif
 ;
 #if (BIOS == BIOS_WBW)
@@ -1024,7 +1031,7 @@ diskboot10:
 ;
 #if (DSKYENABLE)
 	ld	hl,msg_go		; point to go message
-	call	DSKY_SHOWSEG		; display message
+	call	DSKY_SHOW		; display message
 #endif
 ;
 	; Jump to entry vector
@@ -2075,34 +2082,35 @@ ra_ent		.equ	12
 ;
 ra_tbl:
 ;
-;      Name	  Key	   Dsky	  Bank	    Src	   Dest	    Size     Entry
-;      ---------  -------  -----  --------  -----  -------  -------  ----------
-ra_ent(str_mon,	  'M',	   KY_CL, BID_IMG0, $1000, MON_LOC, MON_SIZ, MON_SERIAL)
+;      Name	  Key	   Dsky	  Bank	    Src	         Dest	    Size     Entry
+;      ---------  -------  -----  --------  -----        -------  -------  ----------
+ra_ent(str_mon,	  'M',	   KY_CL, BID_IMG0, MON_IMGLOC,  MON_LOC, MON_SIZ, MON_SERIAL)
 ra_entsiz	.equ	$ - ra_tbl
-ra_ent(str_cpm22, 'C',	   KY_BK, BID_IMG0, $2000, CPM_LOC, CPM_SIZ, CPM_ENT)
-ra_ent(str_zsys,  'Z',	   KY_FW, BID_IMG0, $5000, CPM_LOC, CPM_SIZ, CPM_ENT)
+ra_ent(str_zsys,  'Z',	   KY_FW, BID_IMG0, ZSYS_IMGLOC, CPM_LOC, CPM_SIZ, CPM_ENT)
+ra_ent(str_cpm22, 'C',	   KY_BK, BID_IMG0, CPM_IMGLOC,  CPM_LOC, CPM_SIZ, CPM_ENT)
 #if (BIOS == BIOS_WBW)
-ra_ent(str_fth,	  'F',	   KY_EX, BID_IMG1, $0000, FTH_LOC, FTH_SIZ, FTH_LOC)
-ra_ent(str_bas,	  'B',	   KY_DE, BID_IMG1, $1700, BAS_LOC, BAS_SIZ, BAS_LOC)
-ra_ent(str_tbas,  'T',	   KY_EN, BID_IMG1, $3700, TBC_LOC, TBC_SIZ, TBC_LOC)
-ra_ent(str_play,  'P',	   $FF,	  BID_IMG1, $4000, GAM_LOC, GAM_SIZ, GAM_LOC)
-ra_ent(str_egg,	  'E'+$80, $FF,   BID_IMG1, $4900, EGG_LOC, EGG_SIZ, EGG_LOC)
-ra_ent(str_user,  'U',	   $FF,	  BID_IMG1, $4B00, USR_LOC, USR_SIZ, USR_LOC)
-ra_ent(str_net,   'N',	   $FF,	  BID_IMG2, $0000, NET_LOC, NET_SIZ, NET_LOC)
+ra_ent(str_fth,	  'F',	   KY_EX, BID_IMG1, FTH_IMGLOC,  FTH_LOC, FTH_SIZ, FTH_LOC)
+ra_ent(str_bas,	  'B',	   KY_DE, BID_IMG1, BAS_IMGLOC,  BAS_LOC, BAS_SIZ, BAS_LOC)
+ra_ent(str_tbas,  'T',	   KY_EN, BID_IMG1, TBC_IMGLOC,  TBC_LOC, TBC_SIZ, TBC_LOC)
+ra_ent(str_play,  'P',	   $FF,	  BID_IMG1, GAM_IMGLOC,  GAM_LOC, GAM_SIZ, GAM_LOC)
+ra_ent(str_egg,	  'E'+$80, $FF,   BID_IMG1, EGG_IMGLOC,  EGG_LOC, EGG_SIZ, EGG_LOC)
+ra_ent(str_net,   'N',	   $FF,	  BID_IMG1, NET_IMGLOC,  NET_LOC, NET_SIZ, NET_LOC)
+ra_ent(str_upd,   'O',	   $FF,	  BID_IMG1, UPD_IMGLOC,  UPD_LOC, UPD_SIZ, UPD_LOC)
+ra_ent(str_user,  'U',	   $FF,	  BID_IMG1, USR_IMGLOC,  USR_LOC, USR_SIZ, USR_LOC)
 #endif
 #if (DSKYENABLE)
-ra_ent(str_dsky,  'Y'+$80, KY_GO, BID_IMG0, $1000, MON_LOC, MON_SIZ, MON_DSKY)
+ra_ent(str_dsky,  'Y'+$80, KY_GO, BID_IMG0, MON_IMGLOC,  MON_LOC, MON_SIZ, MON_DSKY)
 #endif
 		.dw	0		; table terminator
 ;
 ra_tbl_app:
 ;
-;      Name	  Key	   Dsky	  Bank	    Src	   Dest	    Size     Entry
-;      ---------  -------  -----  --------  -----  -------  -------  ----------
-ra_ent(str_mon,	  'M',	   KY_CL, bid_cur,  $1000, MON_LOC, MON_SIZ, MON_SERIAL)
-ra_ent(str_zsys,  'Z',	   KY_FW, bid_cur,  $2000, CPM_LOC, CPM_SIZ, CPM_ENT)
+;      Name	  Key	   Dsky	  Bank	    Src	         Dest	    Size     Entry
+;      ---------  -------  -----  --------  -----       -------  -------  ----------
+ra_ent(str_mon,	  'M',	   KY_CL, bid_cur,  MON_IMGLOC,  MON_LOC, MON_SIZ, MON_SERIAL)
+ra_ent(str_zsys,  'Z',	   KY_FW, bid_cur,  ZSYS_IMGLOC,  CPM_LOC, CPM_SIZ, CPM_ENT)
 #if (DSKYENABLE)
-ra_ent(str_dsky,  'Y'+$80, KY_GO, bid_cur,  $1000, MON_LOC, MON_SIZ, MON_DSKY)
+ra_ent(str_dsky,  'Y'+$80, KY_GO, bid_cur,  MON_IMGLOC,  MON_LOC, MON_SIZ, MON_DSKY)
 #endif
 		.dw	0		; table terminator
 ;
@@ -2114,6 +2122,7 @@ str_fth		.db	"Forth",0
 str_bas		.db	"BASIC",0
 str_tbas	.db	"Tasty BASIC",0
 str_play	.db	"Play a Game",0
+str_upd		.db	"ROM Updater",0
 str_user	.db	"User App",0
 str_egg		.db	"",0
 str_net		.db	"Network Boot",0
diff --git a/Source/HBIOS/std.asm b/Source/HBIOS/std.asm
index 58a62a1e..e63dfcd9 100644
--- a/Source/HBIOS/std.asm
+++ b/Source/HBIOS/std.asm
@@ -538,39 +538,65 @@ CBIOS_LOC	.EQU	CBIOS_END - CBIOS_SIZ	; START OF CBIOS
 
 CPM_ENT		.EQU	CBIOS_LOC		; CPM ENTRY POINT (IN CBIOS)
 
+CPM_IMGSIZ	.EQU	$3000
+
+; ROM BANK 1
+
+LDR_LOC		.EQU	$0000
 LDR_SIZ		.EQU	$1000
+LDR_END		.EQU	LDR_LOC +LDR_SIZ
+LDR_IMGLOC	.EQU	$0000
 
 MON_LOC		.EQU	$EE00			; LOCATION OF MONITOR FOR RUNNING SYSTEM
 MON_SIZ		.EQU	$1000			; SIZE OF MONITOR BINARY IMAGE
 MON_END		.EQU	MON_LOC + MON_SIZ	; END OF MONITOR
+MON_IMGLOC	.EQU	LDR_IMGLOC + LDR_SIZ
+
+ZSYS_IMGLOC	.EQU	MON_IMGLOC + MON_SIZ
+
+CPM_IMGLOC	.EQU	ZSYS_IMGLOC + CPM_IMGSIZ
+
+; ROM BANK 2
+
+FTH_LOC		.EQU	$0200			; CAMEL FORTH
+FTH_SIZ		.EQU	$1700
+FTH_END		.EQU	FTH_LOC + FTH_SIZ
+FTH_IMGLOC	.EQU	$0000
 
 BAS_LOC		.EQU	$0200			; NASCOM BASIC
 BAS_SIZ		.EQU	$2000
 BAS_END		.EQU	BAS_LOC + BAS_SIZ
+BAS_IMGLOC	.EQU	FTH_IMGLOC + FTH_SIZ
 
 TBC_LOC		.EQU	$0A00			; TASTYBASIC
 TBC_SIZ		.EQU	$0900
 TBC_END		.EQU	TBC_LOC + TBC_SIZ
+TBC_IMGLOC	.EQU	BAS_IMGLOC + BAS_SIZ
+
+GAM_LOC		.EQU	$0200			; GAME 2048
+GAM_SIZ		.EQU	$0900
+GAM_END		.EQU	GAM_LOC + GAM_SIZ
+GAM_IMGLOC	.EQU	TBC_IMGLOC + TBC_SIZ
 
 EGG_LOC		.EQU	$F000			; EASTER EGG
 EGG_SIZ		.EQU	$0200
 EGG_END		.EQU	EGG_LOC + EGG_SIZ
+EGG_IMGLOC	.EQU	GAM_IMGLOC + GAM_SIZ
 
-FTH_LOC		.EQU	$0200			; CAMEL FORTH
-FTH_SIZ		.EQU	$1700
-FTH_END		.EQU	FTH_LOC + FTH_SIZ
+NET_LOC		.EQU	$0100			; NETWORK BOOT
+NET_SIZ		.EQU	$1000
+NET_END		.EQU	NET_LOC + NET_SIZ
+NET_IMGLOC	.EQU	EGG_IMGLOC + EGG_SIZ
 
-GAM_LOC		.EQU	$0200			; GAME 2048
-GAM_SIZ		.EQU	$0900
-GAM_END		.EQU	GAM_LOC + GAM_SIZ
+UPD_LOC		.EQU	$0200			; ROM UPDATER
+UPD_SIZ		.EQU	$0D00
+UPD_END		.EQU	UPD_LOC + UPD_SIZ
+UPD_IMGLOC	.EQU	NET_IMGLOC + NET_SIZ
 
 USR_LOC		.EQU	$0200			; USER
-USR_SIZ		.EQU	$8000 - FTH_SIZ - BAS_SIZ - TBC_SIZ - GAM_SIZ - EGG_SIZ
+USR_SIZ		.EQU	BNKTOP - UPD_IMGLOC - UPD_SIZ
 USR_END		.EQU	USR_LOC + USR_SIZ
-
-NET_LOC		.EQU	$0100			; NETWORK BOOT
-NET_SIZ		.EQU	$2000
-NET_END		.EQU	NET_LOC + NET_SIZ
+USR_IMGLOC	.EQU	UPD_IMGLOC + UPD_SIZ
 
 MON_DSKY	.EQU	MON_LOC + (0 * 3)	; MONITOR ENTRY (DSKY)
 MON_SERIAL	.EQU	MON_LOC + (1 * 3)	; MONITOR ENTRY (SERIAL PORT)
diff --git a/Source/HBIOS/updater.asm b/Source/HBIOS/updater.asm
index 38d7313d..81bda7c9 100644
--- a/Source/HBIOS/updater.asm
+++ b/Source/HBIOS/updater.asm
@@ -4,10 +4,7 @@
 ; PROVIDES THE CAPABILTY TO UPDATE ROMWBW FROM THE SBC BOOT LOADER USING
 ; AN XMODEM FILE TRANSFER. 
 ;
-; TO INSTALL, SAVE THIS FILE AS USRROM.ASM IN \RomWBW\Source\HBIOS
-; AND REBUILD AND INSTALL THE NEW ROM VERSION.
-;
-; THE UPDATER CAN THEN BE ACCESSED USING THE "U" OPTION IN THE SBC BOOT LOADER.
+; THIS TOOL CAN BE LAUNCHED FROM THE ROMWBW BOOT LOADER USING OPTION 'R'.
 ;
 ; OPTION (C) AND (S) - CONSOLE AND SERIAL DEVICE
 ;
@@ -129,7 +126,7 @@ HBX_BNKSEL	.EQU	$FE2B
 ;
 XFUDBG		.EQU	0
 ;
-		.ORG    USR_LOC
+		.ORG    UPD_LOC
 ;
 ; ASCII codes
 ;
@@ -1215,9 +1212,9 @@ LSTDEV:	.EQU	$
 ;
 sector4k:	.EQU	$		; 32 PACKETS GET ACCUMULATED HERE BEFORE FLASHING
 ;
-SLACK		.EQU	(USR_END - $)
+SLACK		.EQU	(UPD_END - $)
 		.FILL	SLACK,$FF
-		.ECHO	"User ROM space remaining: "
+		.ECHO	"ROM Updater space remaining: "
 		.ECHO	SLACK
 		.ECHO	" bytes.\n"
 		.END
diff --git a/Source/ver.inc b/Source/ver.inc
index b0fc2263..3778e664 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.88"
+#DEFINE BIOSVER	"3.1.1-pre.90"
diff --git a/Source/ver.lib b/Source/ver.lib
index fa9a0170..fe25abeb 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.88"
+	db	"3.1.1-pre.90"
 	endm