1. High Level Assembler for zLinux executes in 32-bit addressing mode. When executing on zLinux systems running in 64-bit addressing mode, the Linux 32-bit compatibility interface is required for correct execution.
2. High Level Assembler for zLinux converts only OBJ object files to ELF32 format. To create ELF object files from GOFF object files, a separate conversion module is required.

The limitations that apply to the generation of ELF32 object files are described in the HLASM Programmer's Guide.