pre-build ROMs now have platform-specific banners

c64/basic/,platform_ultimate64/,aliases-ultimate64.s

@@ -1,10 +0,0 @@
-
-;; Registers according to Ultimate 64 Command Interface ddescription,
-;; https://1541u-documentation.readthedocs.io/en/latest/command%20interface.html
-
-	.alias U64_CONTROL           $DF1C ; write
-	.alias U64_STATUS            $DF1C ; read
-	.alias U64_COMMAND_DATA      $DF1D ; write
-	.alias U64_IDENTIFICATION    $DF1D ; read
-	.alias U64_RESPONSE_DATA     $DF1E ; read only
-	.alias U64_STATUS_DATA       $DF1F ; read only

c64/basic/,platform_ultimate64/,hooks_ultimate64.s

@@ -0,0 +1,9 @@
+
+;; Platform-specific hooks
+
+
+.macro PLATFORM_HOOK_BANNER
+
+	.byte $05, "  OPEN ROMS FOR ULTIMATE 64", $0D, $0D, "  ", $00
+
+.macend