The xpseudo_asm.h file includes xreg_cortexr5.h and xpseudo_asm_gcc.h.
The xreg_cortexr5.h include file contains the register numbers and the register bits for the Arm Cortex-R5 processor.
The xpseudo_asm_gcc.h file contains the definitions for the most often used inline assembler instructions, available as macros. These can be very useful for tasks such as setting or getting special purpose registers, synchronization,or cache manipulation. These inline assembler instructions can be used from drivers and user applications written in C.