## Data Type

Integer## Default Value

0## Description

When using subroutine FMSMM to compute the matrix product

```
[C] = [D] + [A][B]
```

it is sometimes necessary to shift the product [A][B]
before storing into [C].
This parameter allows the product of [A][B] to be shifted by MMROW rows.
Only the part of the product [A][B] that falls within the matrix [C] is computed and stored.