Determines if the current user-address space is 64-bit or not.
The IS64U kernel service returns 1 if the current user-address space is 64-bit. It returns 0 otherwise.
The IS64U kernel service can be called from a process or interrupt handler environment. In either case, it will operate only on the current user-address space.
0 | The current user-address space is 32-bits. |
1 | The current user-address space is 64-bits. |
The IS64U kernel service is part of Base Operating System (BOS) Runtime.
The as_att kernel service, as_det kernel service, as_geth kernel service, as_getsrval kernel service, as_puth kernel service, getadsp kernel service, as_att64 kernel service.
Memory Kernel Services and Understanding Virtual Memory Manager Interfaces in AIX Version 4 Kernel Extensions and Device Support Programming Concepts.