INSTRUCTION DESCRIPTIONS

MAC

Signed Multiply-Accumulate

n

sssss

constant

1

00001

010000000000000000000000

2

00010

001000000000000000000000

3

00011

000100000000000000000000

4

00100

000010000000000000000000

5

00101

000001000000000000000000

6

00110

000000100000000000000000

7

00111

000000010000000000000000

8

01000

000000001000000000000000

9

01001

000000000100000000000000

10

01010

000000000010000000000000

11

01011

000000000001000000000000

12

01100

000000000000100000000000

13

01101

000000000000010000000000

14

01110

000000000000001000000000

15

01111

000000000000000100000000

16

10000

000000000000000010000000

17

10001

000000000000000001000000

18

10010

000000000000000000100000

19

10011

000000000000000000010000

20

10100

000000000000000000001000

21

10101

000000000000000000000100

22

10110

000000000000000000000010

23

10111

000000000000000000000001

Timing: 2 oscillator clock cycles

Memory: 1 program word

MAC

MOTOROLA

INSTRUCTION SET DETAILS

A - 153

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Image 422
Motorola DSP56000, 24-Bit Digital Signal Processor manual Sssss Constant