This allows the code to be displayed properly on GitHub and in modern text editors, which typically do not support the irregularly-spaced tab stops used for ORCA/M code. It also avoids any possibility of problems building the code if the SysTabs file is missing or has been customized with non-standard tab stops.
This is necessary to compile some very large functions, such as the main interpreter loop in Git.
This consumes about 8K of extra memory for the additional label records.
Stephen Heumann
mikew50