gtpm1m1eTPF V4R1 Migration Guide: 3.1 to 4.1

Excluding a List of Literals (LTORGs) to Save Space

In the TPF 3.1 system, each program included a list of literals (LTORGs) at the end, whether the literal pool was needed or not. In the TPF 4.1 system, programs are packed into the core resident program area (CRPA), so program size becomes more important.

The LTORG instruction rounds up to the next doubleword boundary, even if there are no literals. If you have programs that do not have literals, and are between 4089- and 4095-bytes long, you can code FINIS LTORG=NO, and this rounding will not take place. This will allow your program to fit into a 4 KB block.