monitor command set memory adapted

src/mon_m65/mon_helper_syntax.s

@@ -7,6 +7,8 @@ Syntax_Byte_AC:            ; ensure AC contains a 1-byte value
 	php
 	pha
 
+	; XXX improve this - check for numeric system and Dig_Cnt, will require Got_Addr_To_LAC rework
+
 	lda  Long_AC+1
 	ora  Long_AC+2
 	ora  Long_AC+3
@@ -15,3 +17,5 @@ Syntax_Byte_AC:            ; ensure AC contains a 1-byte value
 	pla
 	plp
 	rts
+
+; XXX add routine to check if this was last character