Motorola DSP56000, 24-Bit Digital Signal Processor manual 0 0 L 0 L A a a

INSTRUCTION DESCRIPTIONS

L: Long Memory Data Move L:

Instruction Format:

( . . . . . ) L:aa,D

( . . . . . ) S,L:aa

Opcode:

23		16	15	8	7	0
	0 1 0 0 L 0 L	L	W 0 a	a a a a a		INSTRUCTION OPCODE

Instruction Fields:

aa=6-bit Absolute Short Address=aaaaaa

Register W Absolute Short Address aaaaaa

Read S	0			000000
Write D	1			•
				•
				111111
			S				D	D
S	S1	S2	S/L	D	D1	D2	Sign Ext	Zero	L L L
A10	A1	A0	no	A10 A1		A0	no	no	0	0	0
B10	B1	B0	no	B10	B1	B0	no	no	0	0	1
X	X1	X0	no	X	X1	X0	no	no	0	1	0
Y	Y1	Y0	no	Y	Y1	Y0	no	no	0	1	1
A	A1	A0	yes	A	A1	A0	A2	no	1	0	0
B	B1	B0	yes	B	B1	B0	B2	no	1	0	1
AB	A	B	yes	AB	A	B	A2,B2	A0,B0	1	1	0
BA	B	A	yes	BA	B	A	B2,A2	B0,A0	1	1	1

Timing: mv oscillator clock cycles

Memory: mv program words

MOTOROLA INSTRUCTION SET DETAILS A - 201