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From: jbs@eddie.MIT.EDU (Jeff Siegal)
Newsgroups: comp.sys.dec
Subject: Re: PDP-11 ESCape Problems with RSTS/E
Message-ID: <6918@eddie.MIT.EDU>
Date: Fri, 18-Sep-87 01:36:08 EDT
Article-I.D.: eddie.6918
Posted: Fri Sep 18 01:36:08 1987
Date-Received: Sat, 19-Sep-87 18:42:50 EDT
References: <1158@bsu-cs.UUCP>
Reply-To: jbs@eddie.MIT.EDU (Jeff Siegal)
Organization: MIT, EE/CS Computer Facilities, Cambridge, MA
Lines: 24
Keywords: PDP-11, RSTS/E, BASIC-PLUS

In article <1158@bsu-cs.UUCP> mithomas@bsu-cs.UUCP (Michael Thomas Niehaus) writes:
>
>I have been having problems with a BASIC-PLUS program on a PDP-11 running
>RSTS/E Version 7.  I have been trying to output an ESC code (ASCII 27) to
>the terminal to begin an escape code to place the VT100 into the DEC Spec-
>ial Graphics character set.  However, the wonderful RSTS/E operating system
>converts all ESC characters (as far as I can tell) to '$', which do me very
>little good.

You have two options:

1) Use binary mode output:

	PRINT, RECORD 4096%, CHR$(27%) + "...";

2) Add 128 to any ascii control characters you want to protect from
standard RSTS/E character processing:

	PRINT CHR$(155%) + "...";

RSTS/E will strip out the high bit, but not outerwise alter the
character.

Jeff Siegal