diff --git a/Doc/ChangeLog.txt b/Doc/ChangeLog.txt
index bc0a0084..33f03d82 100644
--- a/Doc/ChangeLog.txt
+++ b/Doc/ChangeLog.txt
@@ -17,6 +17,7 @@ Version 3.5
 - M?P: Reorganization of Doc directory introducing subfolders
 - WBW: Upgraded BBCBASIC to v5.00
 - W?S: Updated FLASH utility to v1.3.9
+- WBW: Support RCBus PS/2 Keyboard (EP/Sally)
 
 Version 3.4
 -----------
diff --git a/Doc/Contrib/AY-3-8910 Registers.xlsx b/Doc/Contrib/AY-3-8910 Registers.xlsx
new file mode 100644
index 00000000..6fdc0b5e
Binary files /dev/null and b/Doc/Contrib/AY-3-8910 Registers.xlsx differ
diff --git a/Doc/RomWBW Applications.pdf b/Doc/RomWBW Applications.pdf
index 5a314bdc..b25e9dae 100644
Binary files a/Doc/RomWBW Applications.pdf and b/Doc/RomWBW Applications.pdf differ
diff --git a/Doc/RomWBW Disk Catalog.pdf b/Doc/RomWBW Disk Catalog.pdf
index 9a3dd69b..decdd570 100644
Binary files a/Doc/RomWBW Disk Catalog.pdf and b/Doc/RomWBW Disk Catalog.pdf differ
diff --git a/Doc/RomWBW Errata.pdf b/Doc/RomWBW Errata.pdf
index f0d71fd3..6f2ca51f 100644
Binary files a/Doc/RomWBW Errata.pdf and b/Doc/RomWBW Errata.pdf differ
diff --git a/Doc/RomWBW ROM Applications.pdf b/Doc/RomWBW ROM Applications.pdf
index 94e8b6fe..e331c33e 100644
Binary files a/Doc/RomWBW ROM Applications.pdf and b/Doc/RomWBW ROM Applications.pdf differ
diff --git a/Doc/RomWBW System Guide.pdf b/Doc/RomWBW System Guide.pdf
index 7ca987cd..be18328f 100644
Binary files a/Doc/RomWBW System Guide.pdf and b/Doc/RomWBW System Guide.pdf differ
diff --git a/Doc/RomWBW User Guide.pdf b/Doc/RomWBW User Guide.pdf
index 3f5224c5..0aa6ea10 100644
Binary files a/Doc/RomWBW User Guide.pdf and b/Doc/RomWBW User Guide.pdf differ
diff --git a/ReadMe.md b/ReadMe.md
index 7595af2c..927ed892 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -3,7 +3,7 @@
 **RomWBW ReadMe** \
 Version 3.5 \
 Wayne Warthen  ([wwarthen@gmail.com](mailto:wwarthen@gmail.com)) \
-17 May 2024
+04 Jun 2024
 
 # Overview
 
diff --git a/ReadMe.txt b/ReadMe.txt
index b784b4c0..27b1dab2 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -1,6 +1,6 @@
 RomWBW ReadMe
 Wayne Warthen (wwarthen@gmail.com)
-17 May 2024
+04 Jun 2024
 
 
 
diff --git a/Source/Apps/Test/ps2info/ps2info.asm b/Source/Apps/Test/ps2info/ps2info.asm
index 2acbf282..22a6ea7d 100644
--- a/Source/Apps/Test/ps2info/ps2info.asm
+++ b/Source/Apps/Test/ps2info/ps2info.asm
@@ -11,6 +11,7 @@
 ; WBW 2022-04-01: Add menu for test functions
 ; WBW 2022-04-02: Fix prtchr register saving/recovery
 ; WBW 2023-10-19: Add support for Duodyne
+; WBW 2024-06-10: Add support for RC2014
 ;
 ;=======================================================================
 ;
@@ -25,6 +26,10 @@ iodat_rph	.equ	$8C	; PS/2 controller data port address
 ; Duodyne:
 iocmd_duo	.equ	$4D	; PS/2 controller command port address
 iodat_duo	.equ	$4C	; PS/2 controller data port address
+; RC2014 (EP/Sally)
+iocmd_rc	.equ	$64	; PS/2 controller command port address
+iodat_rc	.equ	$60	; PS/2 controller data port address
+
 ;
 cpumhz	.equ	8	; for time delay calculations (not critical)
 ;
@@ -87,6 +92,8 @@ setup1:
 	jr	z,setup_rph
 	cp	'3'			; Duodyne
 	jr	z,setup_duo
+	cp	'4'			; RC2014 EP/Sally
+	jr	z,setup_rc
 	cp	'X'
 	jr	z,exit
 	jr	setup
@@ -115,6 +122,14 @@ setup_duo:
 	ld	de,str_duo
 	jr	setup2
 ;
+setup_rc:
+	ld	a,iocmd_rc
+	ld	(iocmd),a
+	ld	a,iodat_rc
+	ld	(iodat),a
+	ld	de,str_rc
+	jr	setup2
+;
 setup2:
 	call	prtstr
 	call	crlf2
@@ -1437,16 +1452,18 @@ delay1:
 ; Constants
 ;=======================================================================
 ;
-str_banner		.db	"PS/2 Keyboard/Mouse Information v0.8, 6-Nov-2023",0
+str_banner		.db	"PS/2 Keyboard/Mouse Information v0.9, 10-Jun-2024",0
 str_hwmenu		.db	"PS/2 Controller Port Options:\r\n\r\n"
 			.db	"  1 - Nhyodyne\r\n"
 			.db	"  2 - Rhyophyre\r\n"
 			.db	"  3 - Duodyne\r\n"
+			.db	"  4 - RC2014\r\n"
 			.db	"  X - Exit Application\r\n"
 			.db	"\r\nSelection? ",0
 str_mbc			.db	"Nhyodyne",0
 str_rph			.db	"Rhyophyre",0
 str_duo			.db	"Duodyne",0
+str_rc			.db	"RC2014 (Saly)",0
 str_menu		.db	"PS/2 Testing Options:\r\n\r\n"
 			.db	"  C - Test PS/2 Controller\r\n"
 			.db	"  K - Test PS/2 Keyboard\r\n"
diff --git a/Source/HBIOS/ay38910.asm b/Source/HBIOS/ay38910.asm
index c0aeebeb..ecd23da2 100644
--- a/Source/HBIOS/ay38910.asm
+++ b/Source/HBIOS/ay38910.asm
@@ -19,6 +19,15 @@
 ;  UNUSED BITS CAN BE READ BACK AND WRITTEN ON YM.
 ;  VOLTAGE LEVEL OUTPUT ON A AY-3-8910 IS LOW AND AROUND 2V ON YM2149.
 ;
+; THERE ARE TWO VARIANTS OF AY-3-8910 SOUND CARDS THAT HAVE BEEN
+; PRODUCED FOR THE RCBUS.  THE ONE PRODUCED BY ED BRINDLEY (EB) USES
+; THE SAME PORT FOR REGISTER SELECT (RSEL) AND REGISTER IN (RIN).
+; THE ONE PRODUCED BY MARTEN FELDTMANN (MF) USES THE PORT FOLLOWING
+; REGISTER SELECT (RSEL) FOR THE REGISTER IN (RIN) PORT.  THE FOLLOWING
+; EQUATE MUST BE SET CORRECTLY FOR THE HARDWARE BEING USED.  THIS
+; HAS NOT BEEN MOVED TO A CONFIG VARIABLE BECAUSE THE MF MODULE IS
+; RARELY ENCOUNTERED IN THE WILD.
+;
 AY_RCSND	.EQU	0		; 0 = EB MODULE, 1=MF MODULE
 ;
 	DEVECHO	"AY38910: MODE="
diff --git a/Source/HBIOS/fd.asm b/Source/HBIOS/fd.asm
index 5888f4a1..d129c678 100644
--- a/Source/HBIOS/fd.asm
+++ b/Source/HBIOS/fd.asm
@@ -894,11 +894,11 @@ FD_DETECT:
 	IN	A,(FDC_MSR)	; ... AND REREAD THE STATUS
 	;CALL	PC_SPACE	; *DEBUG*
 	;CALL	PRTHEXBYTE	; *DEBUG*
-
+;
 FD_DETECT1:
 	CP	$80		; WE EXPECT $80
-	RET	Z		; IF SO, ALL DONE
-
+	JR	Z,FD_DETECT2	; IF SO, CONTINUE CHECKING
+;
 	; WE HAVE SEEN AN FDC THAT NEEDS A SECOND READ TO GET
 	; DESIRED VALUE, SO TRY ONE MORE TIME
 	CALL	DLY32		; WAIT A BIT
@@ -906,7 +906,19 @@ FD_DETECT1:
 	;CALL	PC_SPACE	; *DEBUG*
 	;CALL	PRTHEXBYTE	; *DEBUG*
 	CP	$80		; CHECK FOR CORRECT VALUE
-	RET			; RETURN WITH ZF ACCORDING TO RESULT
+	RET	NZ		; RETURN IF FAILED WITH ZF RESET
+;
+FD_DETECT2:
+	; AS A FINAL TEST, WE REREAD THE MSR USING A DIFFERENT
+	; OPCODE.  THIS SHOULD ELIMINATE ANY FALSE POSITIVES FROM
+	; A FLOATING BUS.
+	CALL	DLY32		; WAIT A BIT
+	LD	C,FDC_MSR	; POINT TO MSR PORT
+	IN	A,(C)		; READ USING (C) FORM OF INPUT
+	;CALL	PC_SPACE	; *DEBUG*
+	;CALL	PRTHEXBYTE	; *DEBUG*
+	CP	$80		; CHECK FOR CORRECT VALUE
+	RET			; RETURN WITH ZF SET CORRECTLY
 ;
 ; UNIT INITIALIZATION
 ;
diff --git a/Source/HBIOS/romldr.asm b/Source/HBIOS/romldr.asm
index 0c20695f..e6745893 100644
--- a/Source/HBIOS/romldr.asm
+++ b/Source/HBIOS/romldr.asm
@@ -2415,8 +2415,8 @@ ra_ent		.equ	12
 ;
 ; Note: The loadable ROM images are placed in ROM banks BID_IMG0 and
 ; BID_IMG1.  However, RomWBW supports a mechanism to load a complete
-; new system dynamically as a runnable application (see appboot and
-; imgboot in hbios.asm).  In this case, the contents of BID_IMG0 will
+; new system dynamically as a runnable application (see appboot
+; in hbios.asm).  In this case, the contents of BID_IMG0 will
 ; be pre-loaded into the currently executing ram bank thereby allowing
 ; those images to be dynamically loaded as well.  To support this
 ; concept, a pseudo-bank called bid_cur is used to specify the images
@@ -2436,14 +2436,13 @@ ra_entsiz	.equ	$ - ra_tbl
 ra_ent(str_smon,  'S',	   $FF,	  bid_cur , $8000,       $8000,   $0001,   s100mon)
   #endif
 #endif
-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)
+ra_ent(str_zsys,  'Z',	   KY_FW, BID_IMG0, ZSYS_IMGLOC, CPM_LOC, CPM_SIZ, CPM_ENT)
 #if (BIOS == BIOS_WBW)
-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_fth,	  'F',	   KY_EX, BID_IMG1, FTH_IMGLOC,  FTH_LOC, FTH_SIZ, FTH_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,   'X',	   $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)
@@ -2451,6 +2450,7 @@ ra_ent(str_user,  'U',	   $FF,	  BID_IMG1, USR_IMGLOC,  USR_LOC, USR_SIZ, USR_LO
 #if (DSKYENABLE)
 ra_ent(str_dsky,  'Y'+$80, KY_GO, BID_IMG0, MON_IMGLOC,  MON_LOC, MON_SIZ, MON_DSKY)
 #endif
+ra_ent(str_egg,	  'E'+$80, $FF,   BID_IMG1, EGG_IMGLOC,  EGG_LOC, EGG_SIZ, EGG_LOC)
 		.dw	0		; table terminator
 ;
 ra_tbl_app:
diff --git a/Source/HBIOS/tms.asm b/Source/HBIOS/tms.asm
index e8fbbf40..f408f896 100644
--- a/Source/HBIOS/tms.asm
+++ b/Source/HBIOS/tms.asm
@@ -66,8 +66,8 @@ TMS_CMDREG	.EQU	$BF		; READ STATUS / WRITE REG SEL
 #IF (TMSMODE == TMSMODE_MSXKBD)
 TMS_DATREG	.EQU	$98		; READ/WRITE DATA
 TMS_CMDREG	.EQU	$99		; READ STATUS / WRITE REG SEL
-TMS_KBDDATA	.EQU	$E0		; KBD CTLR DATA PORT
-TMS_KBDST	.EQU	$E1		; KBD CTLR STATUS/CMD PORT
+TMS_KBDDATA	.EQU	$60		; KBD CTLR DATA PORT
+TMS_KBDST	.EQU	$64		; KBD CTLR STATUS/CMD PORT
 		DEVECHO	"MSXKBD"
 #ENDIF
 ;
diff --git a/Source/HBIOS/usrrom.asm b/Source/HBIOS/usrrom.asm
index 67f24c7b..146d4937 100644
--- a/Source/HBIOS/usrrom.asm
+++ b/Source/HBIOS/usrrom.asm
@@ -21,6 +21,13 @@
 ;   HBIOS WARM RESET FUNCTION AS DEMONSTRATED BELOW.
 ; - THE APPLICATION MAY MAKE HBIOS FUNCTION CALLS WITHOUT RESTRICTION,
 ;   BUT CANNOT USE ANY OS (CP/M) FUNCTIONS BECAUSE NO OS IS LOADED.
+; - THE APPLICATION MAY NOT CHANGE THE INTERRUPT MODE (WHICH IS DEFINED
+;   IN THE ROM CONFIGURATION).  THE SYSTEM'S INTERRUPT
+;   MODE CAN BE QUERIED BY AN HBIOS API CALL IF DESIRED.
+; - THE APPLICATION MAY TEMPORARILY DISABLE INTERRUPTS BY BRACKETING
+;   SECTIONS OF CODE WITH DI/EI AS NEEDED.  IF INTERRUPTS ARE
+;   TEMPORARILY DISABLED, THEY SHOULD NOT SHOULD NOT
+;   BE LEFT DISABLED ACROSS HBIOS API CALLS.
 ;
 ; INCLUDE STD.ASM WHICH DEFINES SOME KEY EQUATES USED BELOW.  MOST
 ; IMPORTANT ARE USR_LOC, USR_SIZ, AND USR_END.  IT ALSO DEFINES EQUATES
@@ -33,8 +40,8 @@
 CR	.EQU	0DH
 LF	.EQU	0AH
 ;
-ROWS	.EQU	008H		; NUMBER OF PIXEL ROWS PER CHARACTER
-COLS	.EQU	008H		; NUMBER OF PIXEL COLUMNS PER CHARACTER
+ROWS	.EQU	8		; NUMBER OF PIXEL ROWS PER CHARACTER
+COLS	.EQU	8		; NUMBER OF PIXEL COLUMNS PER CHARACTER
 ;
 ; APPLICATION WILL WILL BE LOADED AT USR_LOC.  THEREFORE, THE CODE
 ; MUST "ORG" AT THIS ADDRESS.  TO CHANGE THE LOAD LOCATION OF THIS
@@ -145,10 +152,10 @@ CIN:	PUSH	BC
 ; DATA SECTION
 ;
 BANNER:
-	.DB 006H; THE NUMBER OF CHARACTERS IN THE BANNER
+	.DB	6	; THE NUMBER OF CHARACTERS IN THE BANNER
 ;
 #IF FALSE
-	; UPPER CASE LOGO
+	; UPPER CASE LOGO ("ROMWBW")
 	.DB	%01111100, %00011100, %01000001, %01000001, %01111100, %01000001
 	.DB	%01000010, %00100010, %01100011, %01000001, %01000010, %01000001
 	.DB	%01000001, %01000001, %01010101, %01000001, %01000001, %01000001
@@ -160,7 +167,7 @@ BANNER:
 #ENDIF
 ;
 #IF TRUE
-	; UPPER AND LOWER CASE LOGO
+	; UPPER AND LOWER CASE LOGO ("RomWBW")
 	.DB	%00000000, %00000000, %00000000, %00000000, %00000000, %00000000
 	.DB	%01111000, %00000000, %00000000, %01000100, %01111000, %01000100
 	.DB	%01000100, %00000000, %00000000, %01000100, %01000100, %01000100
diff --git a/Source/ver.inc b/Source/ver.inc
index 81923253..9a3e8415 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -2,7 +2,7 @@
 #DEFINE	RMN	5
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.5.0-dev.45"
+#DEFINE BIOSVER	"3.5.0-dev.47"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP
diff --git a/Source/ver.lib b/Source/ver.lib
index bcc13c07..7348e693 100644
--- a/Source/ver.lib
+++ b/Source/ver.lib
@@ -3,5 +3,5 @@ rmn	equ	5
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.5.0-dev.45"
+	db	"3.5.0-dev.47"
 	endm