Set User Mask Instruction

sum

Operation Font Conventions

Instruction Type M

Format

(qp) sum imm24

Description

The imm24 operand is ORed with the user mask (PSR{5:0}) and the result is placed in the user mask.

PSR.up can only be set if the secure performance monitor bit (PSR.sp) is zero. Otherwise PSR.up is not modified.

Serialization

All user mask modifications are observed by the next instruction group.

Related Topics:

mov psr.um - Move User Mask Instruction

rum - Reset User Mask Instruction