Constant data

Constant data is now placed in a read-only data area called C$$constdata.

For applications, the only benefit is that DDT (or any other debugging mechanism) can write-protect the constant data to help check for bugs.

For modules, constant data does not need to be copied into the module workspace, but can be used in-situ in the module body, saving RAM (and the speed hit of the run-time relocation). However, to prevent linking problems, constant data with external linkage will remain in C$$data and be copied into the module workspace.