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DEC ss     Decrement     Rabbit 2000/3000/4000/5000 Instruction

Opcode	Instruction	Operation
----	DEC ss	ss = ss - 1
0B	DEC BC	BC = BC - 1
1B	DEC DE	DE = DE - 1
2B	DEC HL	HL = HL - 1
3B	DEC SP	SP = SP - 1

Clocks	8-Bit Access	16-Bit Unaligned	16-Bit Aligned
Rabbit 2000/3000/4000	2	n/a	n/a
Rabbit 5000	2	2	2

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

Description

Decrements ss (any of BC, DE, HL, or SP).