PEARL (programming language)

PEARL [ pɜ ɹl ː ] is a real-time and multi-tasking programming according to DIN 66253rd you find particularly under RTOS -UH application. PEARL stands for Process and Experiment Automation Realtime Language and has nothing to do with the Perl scripting language.

Application

PEARL is among other things used in the programming of process computers for utilities, such as at the Stadtwerke Hannover.

Furthermore, PEARL is used at many colleges for training in programming real-time systems.

Hello World

The sample program Hello world sees in PEARL follows:

MODULE ( HELLO WORLD );      SYSTEM;          TERMINAL: DIS <- > SDVLS (2);        PROBLEM;          SPC TION TERMINAL INOUT ALPHIC DIM (,) TFU MAX FORWARD CONTROL ( ALL);        MAIN: TASK;         OPEN TERMINAL;         PUT 'Hello world! ' TO TERMINAL;         CLOSE TERMINAL;     END;   MODEND; swell