110844 H19PAK - RT-11 FORTRAN IV Support for VT52/H19 CRTs Version: V002B, April 1986 Submitted by: Anthony P. Cruz, Roseville, MI Operating System: RT-11 V2C (HT-11 11/79) Source Language: MACRO-11 Memory Required: 1020 or less words Software Required: RT-11 FORTRAN IV or equivalent. Can also be VERY USEFUL in MACRO-11 or ANY high level language that uses the same conventions for parameter passing as RT-11 FORTRAN IV. Hardware Required: VT52, Heath/Zenith H19 or any VT52 compatible CRT terminal. Keywords: FORTRAN Abstract: This project was inspired by a need to utilize the Digital Equipment Corporation VT52 compatible features of the HEATHKIT Model H19 CRT terminal through the FORTRAN language in as straightforward a manner as possible. In order to access the features of this terminal, the non-printing (ESCAPE) character must be used. Normally, a FORTRAN IV programmer would have to write some rather obtuse code in order to send any non-printing character to a device. Although FORTRAN is an excellent language for technical people with little computer background, it has historically been an inconvenient language for handling alpha-numeric strings. The objective here is to simplify the use of the terminal features by accessing these features through a series of FORTRAN "CALL" statements. All of the needed subroutines are named according to the name of the feature accessed per the HEATH instruction manual. Support subroutines are also included to enable EFFECTIVE use of the screen dump command. Notes: Uses RT-11 V02C programmed requests throughout. However, general logic would remain unchanged if for instance RSX-11M QIOs were used instead. Media (Service Charge Code): User's Manual (EB), One RX01 Diskette (KA) Format: RT-11, 600' Magnetic Tape (MA) Format: RT-11