Motorola DSP56000, 24-Bit Digital Signal Processor manual Address Register Update, R R R

INSTRUCTION DESCRIPTIONS

U Address Register Update

Instruction Format:

( . . . . . ) ea

Opcode:

U

23	16	15		8	7	0
0 0 1 0 0 0	0 0	0	1 0	M M R R	R	INSTRUCTION OPCODE

Instruction Fields:

ea=5-bit Effective Address=MMRRR

Effective
Addressing Mode	M M R R R
(Rn)-Nn	0	0	r	r	r
(Rn)+Nn	0	1	r	r	r
(Rn)-	1	0	r	r	r
(Rn)+	1	1	r	r	r

where “rrr” refers to an address register R0-R7

Timing: mv oscillator clock cycles

Memory: mv program words

MOTOROLA INSTRUCTION SET DETAILS A - 173