Field boundaries
Assembler language statements normally occupy one 80-character
record, or line. For information about statements that occupy more
than 80 characters, see Continuation lines. Each line is divided into
three main fields:
- Statement field
- Continuation-indicator field
- Identification-sequence field
If it can be printed, any character coded into any column of a line, or otherwise entered as a position in a source statement, is reproduced in the listing printed by the assembler. Whether it can be printed or not depends on the printer.
Uppercase Printing: Use the FOLD assembler option to instruct the assembler to convert lowercase alphabetic characters to uppercase alphabetic characters before they are printed.