diff --git a/Source/HBIOS/nascom.asm b/Source/HBIOS/nascom.asm
index acae4864..d4b308bf 100644
--- a/Source/HBIOS/nascom.asm
+++ b/Source/HBIOS/nascom.asm
@@ -4445,15 +4445,8 @@ PLAY:	CALL    GETINT          ; GET OCTAVE
         EX	(SP),HL	        ; GET OCTAVE IN HL. SYNTAX POINTER ON STACK
 	EX	DE,HL		; PUT NOTE PTR IN HL, OCTAVE IN DE
 
-	PUSH	BC
-	LD	B,D
-	CALL	SPK_BEEP
-	POP	BC
-
-	POP	HL		; RECALL SYNTAX POINTER
-	RET
-
-SPK_BEEP:
+	PUSH	BC		; SAVE SYNTAX POINTER
+	LD	B,D		; SAVE OCTAVE
 	PUSH	AF		; SAVE DURATION
 
 	LD	A,(HL)		; LOAD 1ST ARG
@@ -4478,7 +4471,7 @@ SPK_BEEP:
 	LD	A,8		; DIVIDE THE
 	SUB	B		; FREQENCY BASED
 	JR	Z,SPK_OCTOK	; ON THE OCTAVE
-	LD	C,A		; REQUESTED
+	LD	B,A
 SPK_OCTDIV:
 	SRL	D	; 0>D>C	; MULTIPLY THE	
 	RR	E	; C>E>C	; DURATION EVERY	
@@ -4510,7 +4503,6 @@ SPK_OCTOK:
 ;	DE 	Number of passes to make through the sound generation loop
 ;	HL 	Loop delay parameter
 
-SPK_BEEPER:
 	PUSH	IX
 	DI 			; Disable the interrupt for the duration of a 'beep'.
 	LD	A,L 		; Save L temporarily.
@@ -4561,6 +4553,8 @@ BE_AGAIN:			; The parameters for the second half-cycle are set up.
 
 BE_END:	EI
 	POP	IX
+	POP	BC		; RECALL SYNTAX POINTER
+	POP	HL
 	RET
 ;
 RTCVAL	.DB	0
@@ -4573,12 +4567,6 @@ RTCVAL	.DB	0
 ;	DURATION = (CPUKHZ * 256 / 2 - CPUKHZ - (2 * CPUKHZ) ) / FREQUENCY
 
 SET_DUR_TBL:
-;	PUSH	IX
-;	PUSH	IY
-;	PUSH	HL
-;	PUSH	DE
-;	PUSH	BC
-
 	LD	B,BF_SYSGET		; GET CPU SPEED
 	LD	C,BF_SYSGET_CPUINFO	; FROM HBIOS
 	RST	08
@@ -4608,7 +4596,7 @@ FRQ_AJ2:PUSH	HL			; DEHL = CPUKHZ / 8) / FREQUENCY
 	EX	DE,HL
 
 	LD	IY,FRQDURTBL		; POINT TO THE TABLE WE 
-	LD	C,12			; WANT TO READ AND UPDATE
+	LD	B,FDTBSIZ		; WANT TO READ AND UPDATE
 TBL_LP:	PUSH	BC
 
 	LD	C,(IY+0)		; READ THE FREQUENCY
@@ -4647,26 +4635,22 @@ DIV_CANSUB:
 
 	POP	BC			; RETREIVE THE
 	DJNZ	TBL_LP			; LOOP COUNTER
+	RET
 
-;	POP	BC
-;	POP	DE
-;	POP	HL
-;	POP	IY
-;	POP	IX
+DISP:	PUSH	BC
 
-	RET
+;	PUSH	DE
+;	POP	BC
+;	CALL	PRTHEXWORD
+;
+;	PUSH	DE
+;	POP	BC
+;	CALL	PRTHEXWORD
 
-	LD	A,' '
+	LD	A,'*'
 	CALL	MONOUT
-
-	LD	HL,(FRQDURTBL+12)
-	PUSH	HL
 	POP	BC
-	CALL	PRTHEXWORD
-	LD	HL,(FRQDURTBL+14)
-	PUSH	HL
-	POP	BC
-	CALL	PRTHEXWORD
+	RET
 
 PRTHEXBYTE:
 	PUSH	AF
@@ -4734,19 +4718,15 @@ HEXCONV:
 ;	AND DURATIONS ARE CALCULATE BY MODIFYING THE VALUES READ FROM THIS TABLE.
 ;
 FRQDURTBL:
-	.DW $105A, $0  		; C
-	.DW $1152, $0  		; C#
-	.DW $125A, $0		; D
-	.DW $1372, $0		; D#
-	.DW $149A, $0		; E
-	.DW $15D3, $0		; F
-	.DW $171F, $0		; F#
-	.DW $1875, $0		; G
-	.DW $19F4, $0		; G#
-	.DW $1B80, $0		; A
-	.DW $1D22, $0		; A#
-	.DW $1EDE, $0		; B
+	.DW	$105A, $0, $1152, $0  	; C, C#
+	.DW	$125A, $0, $1372, $0	; D, D#
+	.DW	$149A, $0		; E
+	.DW	$15D3, $0, $171F, $0	; F, F#
+	.DW	$1875, $0, $19F4, $0	; G, G#
+	.DW	$1B80, $0, $1D22, $0	; A, A#
+	.DW	$1EDE, $0		; B
 
+FDTBSIZ	.EQU	($-FRQDURTBL)/4
 
 SLACK	.EQU	(BAS_END - $)
 	.FILL	SLACK,00H
@@ -4755,5 +4735,4 @@ SLACK	.EQU	(BAS_END - $)
 	.ECHO	SLACK
 	.ECHO	" bytes.\n"
 
-.end
-
+.END