fixed 2 syntax errors that TASM allows

Source/HBIOS/hbios.asm

@@ -658,7 +658,7 @@ HBX_BUF		.FILL	HBX_BUFSIZ,0
 	.DW	HBX_IDENT		; ADDRESS OF HBIOS PROXY START (DEPRECATED)
 	.DW	HBX_IDENT		; ADDRESS OF HBIOS IDENT INFO DATA BLOCK
 ;
-	.FILL	$MEMTOP - $		; FILL TO END OF MEMORY (AS NEEDED)
+	.FILL	MEMTOP - $		; FILL TO END OF MEMORY (AS NEEDED)
 	.ORG	HBX_IMG + HBX_SIZ	; RESET ORG
 ;
 ;==================================================================================================
@@ -3778,7 +3778,7 @@ PS_FLP_DSTR: 	.TEXT	"SD$"		; PS_FLPSD
 ; CHARACTER DEVICE STRINGS
 ;
 PS_SDSTRREF:
-	.DW	PS_SDUART, PS_SDASCI, PS_SDTERM,
+	.DW	PS_SDUART, PS_SDASCI, PS_SDTERM
 	.DW	PS_SDPRPCON, PS_SDPPPCON, PS_SDSIO, PS_SDACIA, PS_SDPIO,PS_SDUF
 ;
 PS_SDUART	.TEXT	"UART$"