INSTRUCTION DESCRIPTIONS

TFR

Transfer Data ALU Register

Condition Codes:

TFR

15

14

 

13

12

11

10

9

8

7

6

 

5

4

3

2

1

0

LF

DM

T

**

 

S1

S0

 

I1

I0

S

L

E

U

N

Z

 

V

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MR

 

 

 

 

 

 

 

 

 

 

CCR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S — Computed according to the definition in A.5 CONDITION CODE COMPUTATION L — Set if data limiting has occurred during parallel move

Instruction Format:

TFR S,D

Opcode:

 

23

 

8

7

4

3

0

 

 

 

 

 

 

 

 

 

 

 

 

DATA BUS MOVE FIELD

 

0 J J J

 

d

0 0 1

 

 

 

 

 

 

 

 

 

 

OPTIONAL EFFECTIVE ADDRESS EXTENSION

Instruction Fields:

S,D

J

J

J

D

B,A

0

0

0

0

A,B

0

0

0

1

X0,A

1

0

0

0

X0,B

1

0

0

1

X1,A

1

1

0

0

X1,B

1

1

0

1

Y0,A

1

0

1

0

Y0,B

1

0

1

1

Y1,A

1

1

1

0

Y1,B

1

1

1

1

Timing: 2+mv oscillator clock cycles

Memory: 1+mv program words

MOTOROLA

INSTRUCTION SET DETAILS

A - 289

Page 558
Image 558
Motorola DSP56000, 24-Bit Digital Signal Processor manual Condition Codes, Tfr S,D