diff --git a/Source/HBIOS/ay38910.asm b/Source/HBIOS/ay38910.asm
index 8fe13b25..0bf23767 100644
--- a/Source/HBIOS/ay38910.asm
+++ b/Source/HBIOS/ay38910.asm
@@ -58,7 +58,7 @@ AY_IDAT	.EQU	0			; NO INSTANCE DATA ASSOCIATED WITH THIS DEVICE
 ;
 ;	DEVICE CAPABILITIES AND CONFIGURATION
 ;
-SBCV2004	.EQU	1		; USE SBC-V2-004 HALF CLOCK DIVIDER	
+SBCV2004	.EQU	1		; USE SBC-V2-004 HALF CLOCK DIVIDER
 ;
 AY_TONECNT	.EQU	3		; COUNT NUMBER OF TONE CHANNELS
 AY_NOISECNT	.EQU	1		; COUNT NUMBER OF NOISE CHANNELS
@@ -106,11 +106,11 @@ AY38910_INIT:
 	LD	D,AY_R3CHBP
 	LD	E,$00
 	CALL	AY_WRTPSG		; R03 = $00 = XXXX0000
-;  
-	CALL	LDELAY			; HALF SECOND 
+;
+	CALL	LDELAY			; HALF SECOND
 ;
 	LD	E,$00			; SET VOLUME OFF
-	CALL	AY_SETV			; ON ALL CHANNELS	
+	CALL	AY_SETV			; ON ALL CHANNELS
 ;
 ;	RET
 ;
@@ -129,7 +129,7 @@ AY_INIT:
 ;======================================================================
 ;
 AY_SETV:
-	LD	B,AY_TONECNT		; NUMBER OF CHANNELS		
+	LD	B,AY_TONECNT		; NUMBER OF CHANNELS
 	LD	D,AY_R8AVOL		; BASE REGISTER FOR VOLUME
 AY_SV:	CALL	AY_WRTPSG		; CYCLING THROUGH ALL CHANNELS
 	INC	D
@@ -370,10 +370,10 @@ AY_APPLY_PRD:
 	RET
 ;
 ;======================================================================
-;	
+;
 ; 	WRITE DATA IN E REGISTER TO DEVICE REGISTER D
 ;	INTERRUPTS DISABLE DURING WRITE. WRITE IN SLOW MODE IF Z180 CPU.
-; 
+;
 ;======================================================================
 ;
 AY_WRTPSG:
@@ -388,7 +388,7 @@ AY_WRTPSG:
 	OR	%00110000		; FORCE SLOW OPERATION (I/O W/S=3)
 	OUT0	(Z180_DCNTL),A		; AND UPDATE DCNTL
 #ENDIF
-	LD	A,D			; SELECT THE REGISTER WE 
+	LD	A,D			; SELECT THE REGISTER WE
 	OUT	(AY_RSEL),A		; WANT TO WRITE TO
 	LD	A,E			; WRITE THE VALUE TO
 	OUT	(AY_RDAT),A		; THE SELECTED REGISTER
diff --git a/Source/HBIOS/hbios.asm b/Source/HBIOS/hbios.asm
index 3e058bd1..979b86b8 100644
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@@ -2555,7 +2555,7 @@ SYS_GETRTCCNT:
 	LD	A,(RTC_DISPACT)		; IS RTC ACTIVE?
 	OR	A			; SET FLAGS
 	JR	Z,SYS_GETRTCCNT1	; IF NONE, DONE
-	INC	E			; SET ONE DEVICE 
+	INC	E			; SET ONE DEVICE
 SYS_GETRTCCNT1:
 	XOR	A			; SIGNALS SUCCESS
 	RET