mithomas@bsu-cs.UUCP (Michael Thomas Niehaus) (09/18/87)
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 '$', which do me very
little good. I have tried using PRINT, OPEN/MODE/PRINT#, OPEN/MODE/FIELD/
PUT, and other variations with different values for MODE, but I either could
not get rid of the '$' or I would get unpredictable 'junk'. Can anyone help?
I would greatly appreciate any help provided.
Michael Niehaus
..!bsu-cs!mithomas
(Ball State U., Muncie, IN)
P.S. Maybe I could find it myself but the people who I am doing the work
for won't trust me with a programmer's manual. And I'm not going to
pay $80 to get one from DEC.cranor@udel.UUCP (09/18/87)
In article <1158@bsu-cs.UUCP> mithomas@bsu-cs.UUCP (Michael Thomas Niehaus) writes: > >I have been having problems with a BASIC-PLUS program on a PDP-11 running >RSTS/E Version 7. I have been trying to output an ESC code (ASCII 27) to >the terminal . . . Try using CHR$(155%) (not 27!). Then it won't print "$". Chuck (former rsts/e user!) -- Chuck Cranor University of Delaware PHONE: (302)-451-6660 (UDel), (302)-737-5852 (home) ARPA: cranor@udel.EDU, UUCP: ...!<your_favorite_arpa_gateway>!udel.edu!cranor "I'd like to see John the Baptist's impersonation of Graham Hill." - R.J. Gumby
jbs@eddie.MIT.EDU (Jeff Siegal) (09/18/87)
In article <1158@bsu-cs.UUCP> mithomas@bsu-cs.UUCP (Michael Thomas Niehaus) writes: > >I have been having problems with a BASIC-PLUS program on a PDP-11 running >RSTS/E Version 7. I have been trying to output an ESC code (ASCII 27) to >the terminal to begin an escape code to place the VT100 into the DEC Spec- >ial Graphics character set. However, the wonderful RSTS/E operating system >converts all ESC characters (as far as I can tell) to '$', 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
steve@ondine.uucp (Steve Jenkins) (09/18/87)
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 '$', which do me very >little good. [ ... ] > Michael Niehaus I remember getting around the same problem in RT-11 by sending ASCII code 155 (128 + 27) instead. Setting the MSB 'escaped' the escape and prevented the translation. The bit is stripped off on output. Steve Jenkins ucla-an!steve@EE.UCLA.EDU UCLA Dept of Anesthesiology {decvax,ihnp4}!hermix!ucla-an!steve (213)-825-4364
ted@blia.BLI.COM (Ted Marshall) (09/18/87)
It's been at least 6 years since I've touched RSTS/E, but as I recall, if you set the high bit on the character code, RSTS does no translation on it. Thus, instead of CHR$(27), use CHR$(128+27). Again, this was a long time ago, and since then, DEC has introduced multi- national terminals that do use the high bit, so things may have changed. -- Ted Marshall ...!ucbvax!mtxinu!blia!ted <or> mtxinu!blia!ted@Berkeley.EDU Britton Lee, Inc., 14600 Winchester Blvd, Los Gatos, Ca 95030 (408)378-7000 The opinions expressed above are those of the poster and not his employer.
jbs@eddie.MIT.EDU (Jeff Siegal) (09/19/87)
In article <3320@blia.BLI.COM> ted@blia.BLI.COM (Ted Marshall) writes: >[...] >Again, this was a long time ago, and since then, DEC has introduced multi- >national terminals that do use the high bit, so things may have changed. A special open MODE has been added to recent versions of RSTS/E (9.0 and later) to allow transparant output of eight-bit extended ascii characters. I believe it is 16384, but never having used it, and not having a manual handy, I can't guarantee that is correct. Jeff Siegal