diff --git a/Source/Forth/camel80.azm b/Source/Forth/camel80.azm
index 95955df4..c082ead8 100644
--- a/Source/Forth/camel80.azm
+++ b/Source/Forth/camel80.azm
@@ -11,6 +11,7 @@ BF_SYSRES_WARM		EQU	01h		; WARM START (RESTART BOOT LOADER)
 
 FTH_SIZ			EQU	1700h
 FTH_LOC			EQU	0200h
+HB_LOC			EQU	0FD80h
 
 ; Listing 2.
 ; ===============================================
@@ -71,7 +72,10 @@ FTH_LOC			EQU	0200h
 ;                   precision words as per RC2014
 ;                   version. Increase terminal 
 ;                   input buffer (TIB) size.
-;       b1ackmai1er difficultylevelhigh@gmail.com                   
+;       b1ackmai1er difficultylevelhigh@gmail.com  
+;   22-Jan 21 v1.02 Adjust for revised HBIOS
+;                   proxy size.
+;       b1ackmai1er difficultylevelhigh@gmail.com                  
 ; ===============================================
 ; Macros to define Forth headers
 ; HEAD  label,length,name,action
@@ -140,7 +144,7 @@ nexthl  MACRO
 	CSEG
 	.PHASE	FTH_LOC
 
-reset:  ld hl,0FDFFh ; HBIOS address, rounded down
+reset:  ld hl,HB_LOC ; HBIOS address, rounded down
         ld l,0       ;    = end of avail.mem (EM)
         dec h        ; EM-100h
         ld sp,hl     ;      = top of param stack
@@ -165,7 +169,7 @@ reset:  ld hl,0FDFFh ; HBIOS address, rounded down
 ;   EM-100h     HOLD area, 40 bytes, grows down
 ;   EM-0D8h     PAD buffer, 88 bytes
 ;   EM-80h      Return stack, 128 B, grows down
-;   EM          End of RAM = start of HBIOS
+;   EM=HB_LOC   End of RAM = start of HBIOS
 ; See also the definitions of U0, S0, and R0
 ; in the "system variables & constants" area.
 ; A task w/o terminal input requires 200h bytes.
diff --git a/Source/HBIOS/updater.asm b/Source/HBIOS/updater.asm
index 89460c93..1dea76ea 100644
--- a/Source/HBIOS/updater.asm
+++ b/Source/HBIOS/updater.asm
@@ -2,7 +2,7 @@
 ; ROMWBW XMODEM FLASH UPDATER
 ;
 ; PROVIDES THE CAPABILTY TO UPDATE ROMWBW FROM THE SBC BOOT LOADER USING
-; AN XMODEM FILE TRANSFER. FOR SYSTEMS WITH AN SST39SF040 FLASH CHIP.
+; AN XMODEM FILE TRANSFER. 
 ;
 ; TO INSTALL, SAVE THIS FILE AS USRROM.ASM IN \RomWBW\Source\HBIOS
 ; AND REBUILD AND INSTALL THE NEW ROM VERSION.
@@ -11,7 +11,7 @@
 ;
 ; OPTION (C) AND (S) - CONSOLE AND SERIAL DEVICE
 ;
-;  BY DEFAULT THE UPDATER IS SET TO USE THE FIRST ROMWBW CONSOLE DEVICE (0) FOR
+;  BY DEFAULT THE UPDATER IS SET TO USE THE CURRENT CONSOLE DEVICE FOR
 ;  DISPLAY OUTPUT AND FILES TRANSFER. IF YOU USE A DIFFERENT SERIAL DEVICE FOR
 ;  THE FILE TRANSFER, PROGRESS INFORMATION WILL BE DISPLAYED.
 ;
@@ -123,7 +123,6 @@
 #INCLUDE	"std.asm"
 ;
 HBX_BNKSEL	.EQU	$FE2B
-HBX_START	.EQU	$FE00
 ;
 #DEFINE	HB_DI	DI
 #DEFINE	HB_EI	EI
@@ -146,10 +145,10 @@ BSPC:		.EQU	'H'-40h		; ^H = Backspace
 ; Start of code
 ;
 	LD	(oldSP),SP		; SETUP STACK BELOW HBIOS
-	LD	SP,HBX_START-MD_CSIZ	; ALLOW FOR RELOCATABLE CODE AREA
+	LD	SP,HBX_LOC-MD_CSIZ	; ALLOW FOR RELOCATABLE CODE AREA
 ;
 	LD	HL,MD_FSTART		; COPY FLASH
-	LD	DE,HBX_START-MD_CSIZ	; ROUTINES TO
+	LD	DE,HBX_LOC-MD_CSIZ	; ROUTINES TO
 	LD	BC,MD_CSIZ		; HIGH MEMORY
 	LDIR
 ;
@@ -227,8 +226,8 @@ CHPFND:	LD	(ERATYP),A		; SAVE ERASE TYPE
 MENULP:	LD	DE,$0000		; ENSURE WE ARE STARTING
 	LD	(MD_FBAS),DE		; AT BANK 0 SECTOR 0
 
-	LD	HL,ERATYP
-	RES	7,(HL)
+	LD	HL,ERATYP		; RESET THE ERASE
+	RES	7,(HL)			; SKIP FLAG
 ;
 	LD	HL,msgCRLF
 	CALL	PRTSTR0
@@ -1148,12 +1147,12 @@ MD_FJPHL:
 MD_FEND		.EQU	$
 MD_CSIZ		.EQU	MD_FEND-MD_FSTART	; HOW MUCH SPACE WE NEED FOR RELOCATABLE CODE
 ;
-MD_FIDEN	.EQU	HBX_START-MD_CSIZ+MD_FIDEN_R-MD_FSTART	; CALL ADDRESS FOR IDENTIFY FLASH CHIP
-MD_FERAS	.EQU	HBX_START-MD_CSIZ+MD_FERAS_R-MD_FSTART	; CALL ADDRESS FOR ERASE FLASH SECTOR
-MD_FREAD 	.EQU	HBX_START-MD_CSIZ+MD_FREAD_R-MD_FSTART	; CALL ADDRESS FOR READ FLASH SECTOR
-MD_FVERI 	.EQU	HBX_START-MD_CSIZ+MD_FVERI_R-MD_FSTART	; CALL ADDRESS FOR VERIFY FLASH SECTOR
-MD_FWRIT 	.EQU	HBX_START-MD_CSIZ+MD_FWRIT_R-MD_FSTART	; CALL ADDRESS FOR WRITE FLASH SECTOR
-MD_FERAC	.EQU	HBX_START-MD_CSIZ+MD_FERAC_R-MD_FSTART	; CALL ADDRESS FOR ERASE FLASH CHIP
+MD_FIDEN	.EQU	HBX_LOC-MD_CSIZ+MD_FIDEN_R-MD_FSTART	; CALL ADDRESS FOR IDENTIFY FLASH CHIP
+MD_FERAS	.EQU	HBX_LOC-MD_CSIZ+MD_FERAS_R-MD_FSTART	; CALL ADDRESS FOR ERASE FLASH SECTOR
+MD_FREAD 	.EQU	HBX_LOC-MD_CSIZ+MD_FREAD_R-MD_FSTART	; CALL ADDRESS FOR READ FLASH SECTOR
+MD_FVERI 	.EQU	HBX_LOC-MD_CSIZ+MD_FVERI_R-MD_FSTART	; CALL ADDRESS FOR VERIFY FLASH SECTOR
+MD_FWRIT 	.EQU	HBX_LOC-MD_CSIZ+MD_FWRIT_R-MD_FSTART	; CALL ADDRESS FOR WRITE FLASH SECTOR
+MD_FERAC	.EQU	HBX_LOC-MD_CSIZ+MD_FERAC_R-MD_FSTART	; CALL ADDRESS FOR ERASE FLASH CHIP
 ;
 ; Message strings
 ;