Motorola DSP56000 manual Effective Addressing Mode M M M R R R Mnemonic C C C C

INSTRUCTION DESCRIPTIONS

JScc	Jump to Subroutine Conditionally
Instruction Format:

JScc

JScc ea

Opcode:

23	16	15	8	7	0
0	0 0 0 1 0 1 1	1 1 M M M R R R		1 0 1 0 C C C C
	OPTIONAL EFFECTIVE ADDRESS EXTENSION

Instruction Fields:

cc=4-bit condition code=CCCC, ea=6-bit Effective Address=MMMRRR

Effective
Addressing Mode M M M R R R							Mnemonic C C C C					Mnemonic C C C				C
(Rn)–Nn	0	0	0	r	r	r	CC (HS)	0	0	0	0	CS (LO)	1	0	0	0
(Rn)+Nn0	0	0	1	r	r	r	GE	0	0	0	1	LT	1	0	0	1
(Rn)–	0	1	0	r	r	r	NE	0	0	1	0	EQ	1	0	1	0
(Rn)+	0	1	1	r	r	r	PL	0	0	1	1	MI	1	0	1	1
(Rn)	1	0	0	r	r	r	NN	0	1	0	0	NR	1	1	0	0
(Rn+Nn)	1	0	1	r	r	r	EC	0	1	0	1	ES	1	1	0	1
–(Rn)	1	1	1	r	r	r	LC	0	1	1	0	LS	1	1	1	0
Absolute address	1	1	0	0	0	0	GT	0	1	1	1	LE	1	1	1	1

where “rrr” refers to an address register R0–R7 Timing: 4+jx oscillator clock cycles

Memory: 1+ea program words

MOTOROLA INSTRUCTION SET DETAILS A - 121