Tutorial › Programs That Copy a Screen Image to a Data Set › Explanation of SCREEN2 Program › ENTER, TABF, TABB, and BRANCH Statements

ENTER, TABF, TABB, and BRANCH Statements

If the previous BRANCH statement did not redirect the program, the following ENTER command simulates pressing the Enter key to add a new line:

ENTER 
TABF 1 
TABB 1 
BRANCH ANY,KLOOP1

The TABF and TABB commands simulate pressing the ®| (forward tab) and |¬ (back tab) keys. In this program, the TABF statement moves the cursor forward to the next input field and the TABB statement moves the cursor back to the previous input field. This is done to ensure that the cursor is in the first space of the inserted line.

The BRANCH statement directs the program to the statement labeled KLOOP1, which copies the next line of screen data.