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POP SU     Stack Operation     Rabbit 3000A/4000/5000 Instruction

Opcode	Instruction	Operation
ED 6E	POP SU	SU = (SP) SP = SP + 1

Clocks	8-Bit Access	16-Bit Unaligned	16-Bit Aligned
Rabbit 3000A/4000	9	n/a	n/a
Rabbit 5000	7	7	5

Flags				ALTD			IOI/IOE
S	Z	L/V	C	F	R	SP	S	D
-	-	-	-

Description

Loads the System/User Mode Register SU with the data at the memory location in SP, then increments the data in SP.

This is a chained-atomic instruction, meaning that an interrupt cannot take place between this instruction and the instruction following it.