PLP

PLP (short for "PulL Processor flags") is the mnemonic for a machine language instruction which retrieves a set of status flags previously "pushed" onto the stack (usually by a PHP instruction) from the stack, and adjusting the stack pointer to reflect the removal of a byte.

Addressing mode

Opcode		Addressing mode	Assembler format	Length in bytes	Number of cycles
Dec	Hex
40	28	Implied	PLP	1	4

PLP only supports the Implied addressing mode, as shown in the table at right.

CPU flags

PLP "affects" potentially all seven processor status flag, and in theory even the unused bit #5 (weight 32/$20) in the byte formed by the flags, since a new "state" for each flag is retrieved from the stack.