Summary of Technical Changes for HP-UX 11.0

In 64-bit mode, the linkage pointer register is %r27. See Table 2-11 “Available Field Selectors”.

In 64-bit mode, the Executable and Linking Format (ELF) uses segments and sections rather than spaces and subspaces. See “Sections in 64-bit Mode”.

The Assembler ignores the .CALL directive. This means that your program must ensure that the caller and called procedure agree on argument locations. See “.CALL Directive”.

The .CALLINFO directive parameters include updates to support 64-bit mode.

You can specify 2.0W with the .LEVEL directive to tell the the Assembler to generate 64-bit object code. For details, see “.LEVEL Directive ”.

New and changed Assembler error messages. For details, see Chapter 8 “Diagnostic Messages ”.