NEC PD75402A, PD75P402 user manual 154

CHAPTER 9. INSTRUCTION SET

Note		Mnemonic	Operand	Bytes	Machine		Operation		Addressing	Skip
					Cycle				Area	Condition
		SET 1	mem. bit	2	2		(mem. bit) ← 1		*2
			f mem. bit	2	2		(f mem.bit) ← 1		*3
instructions		CLR 1	mem. bit	2	2		(mem. bit) ← 0		*2
			f mem. bit	2	2		(f mem. bit) ← 0		*3
		SKT	mem. bit	2	2 + S		Skip if (mem. bit) = 1		*2	(mem. bit) = 1
manipulationBit			f mem. bit	2	2 + S		Skip if (f mem. bit) = 1		*3	(f mem. bit) = 1
		AND 1	CY, f mem. bit	2	2		CY ← CY ∧ (f mem. bit)		*3	(mem. bit) = 0
			mem. bit	2	2 + S		Skip if (mem. bit) = 0		*2
		SKF	f mem. bit	2	2 + S		Skip if (f mem. bit) = 0		*3	(f mem. bit) = 0
		SKTCLR	f mem. bit	2	2 + S		Skip if (f mem. bit) = 1 and clear		*3	(f mem. bit) = 1
		OR 1	CY, f mem. bit	2	2		CY ← CY ∨ (f mem. bit)		*3
		XOR 1	CY, f mem. bit	2	2		CY ← CY ∨ (f mem. bit)		*3
Branch	instructions		addr	–	–		PC 10 – 0 ← addr		*4
						(	The assembler selects the opti-	)
		BR					mum instruction from among
							BRCB!, caddr, and BR$ addr.
			$addr	1	2		PC 10 – 0 ← addr		*5
		BRCB	! caddr	2	2		PC 10 – 0 ← caddr		*6
							(SP–4) (SP –1) (SP–2) ← 0, PC 10 – 0
instructions		CALLF	! faddr	2	2		(SP – 3) ← 0000		*7
							PC 10 – 0 ← faddr, SP ← SP – 4
		RET		1	3		PC 10 – 0 ← (SP) (SP + 3) (SP + 2)
							SP ← SP + 4
control
							PC 10 – 0 (SP) (SP + 3) (SP + 2)
stack		RETS		1	3 + S		SP ← SP + 4,			None
							then skip unconditionally
Subroutine							PC 10 – 0 ← (SP) (SP + 3) (SP + 2)
		RETI		1	3		PSW ← (SP + 4) (SP + 5),
							SP ← SP + 6
		PUSH	rp	1	1		(SP–1) (SP–2) ← rp, SP ← SP–2
		POP	rp	1	1		rp ← (SP + 1) (SP) , SP ← SP + 2
controlInterrupt	instructions		IE×××	2	2		IME (IPS. 3) ← 1
		EI		2	2		IE××× ← 0
			IE×××	2	2		IE××× ← 1
		DI		2	2		IME (IPS. 3) ← 0
Note Instruction Group

154