Casio FX-CG10 Software User Guide - Page 300
Function, Run-Matrix, Syntax, Example, Description, Return, Main Routine, Subroutines, Level 1 Level 2
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Prog Function: This command specifies execution of another program as a subroutine. In the Run-Matrix mode, this command executes a new program. Syntax: Prog "file name" Example: Prog "ABC" Description: • Even when this command is located inside of a loop, its execution immediately breaks the loop and launches the subroutine. • This command can be used as many times as necessary inside of a main routine to call up independent subroutines to perform specific tasks. • A subroutine can be used in multiple locations in the same main routine, or it can be called up by any number of main routines. Main Routine Subroutines A Prog "D" Prog "C" D C E I J Prog "E" Prog "I" Prog "J" Level 1 Level 2 Level 3 Level 4 • Calling up a subroutine causes it to be executed from the beginning. After execution of the subroutine is complete, execution returns to the main routine, continuing from the statement following the Prog command. • A Goto~Lbl command inside of a subroutine is valid inside of that subroutine only. It cannot be used to jump to a label outside of the subroutine. • If a subroutine with the file name specified by the Prog command does not exist, an error occurs. • In the Run-Matrix mode, inputting the Prog command and pressing w launches the program specified by the command. Return Function: This command returns from a subroutine. Syntax: Return Description: Execution of the Return command inside a main routine causes execution of the program to stop. Execution of the Return command within a subroutine terminates the subroutine and returns to the program from which the subroutine was jumped to. 8-16