## 6.6. Multiply and multiply accumulate

The multiply instructions use special hardware that implements integer multiplication with early termination. All cycles except the first are internal

The cycle timings are listed in the following tables:

• multiply instruction cycle operations are listed in Table 6.5

• multiply accumulate instruction cycle operations are listed in Table 6.6

• multiply long instruction cycle operations are listed in Table 6.7

• multiply accumulate long instruction cycle operations are listed in Table 6.8.

In Table 6.5 to Table 6.8:

Table 6.5. Multiply instruction cycle operations

1

pc+2L

0

i

(pc+2L)

1

0

0

2

pc+3L

0

i

-

1

0

1

pc+3L

0

i

-

1

0

1

m

pc+3L

0

i

-

1

0

1

m+1

pc+3L

0

i

-

0

1

1

pc+3L

Table 6.6. Multiply accumulate instruction cycle operations

1

pc+8

0

2

(pc+8)

1

0

0

2

pc+8

0

2

-

1

0

1

pc+12

0

2

-

1

0

1

m

pc+12

0

2

-

1

0

1

m+1

pc+12

0

2

-

1

0

1

m+2

pc+12

0

2

-

0

1

1

pc+12

Table 6.7. Multiply long instruction cycle operations

1

pc+8

0

i

(pc+8)

1

0

0

2

pc+12

0

i

-

1

0

1

pc+12

0

i

-

1

0

1

m

pc+12

0

i

-

1

0

1

m+1

pc+12

0

i

-

1

0

1

m+2

pc+12

0

i

-

0

1

1

pc+12

Table 6.8. Multiply accumulate long instruction cycle operations

1

pc+8

0

2

(pc+8)

1

0

0

2

pc+8

0

2

-

1

0

1

pc+12

0

2

-

1

0

1

m

pc+12

0

2

-

1

0

1

m+1

pc+12

0

2

-

1

0

1

m+2

pc+12

0

2

-

1

0

1

m+3

pc+12

0

2

-

0

1

1

pc+12

### Note

The multiply accumulate, multiply long, and multiply accumulate long operations are not available in Thumb state.