*VLEN, NROW, NINC
Specifies the number of rows to be used in array parameter operations.
NROWNumber of rows to be used with the *VXX or *MXX operations. Defaults to the number
of rows needed to fill the result array.
NINCPerform the operation on every NINC row
(defaults to 1).
Specifies the number of rows to be used in array parameter operations.
The size of the submatrix used is determined from the upper left starting
array element (defined on the operation command) to the lower right array
element (defined by the number of rows on this command and the number of columns
on the *VCOL command). NINC allows
skipping row operations for some operation commands. Skipped rows are included
in the row count. The starting row number must be defined on the operation
command for each parameter read and for the result written.
The default NROW is calculated from the maximum
number of rows of the result array (the *DIM row dimension)
minus the starting location + 1. For example, *DIM,R,,10
and a starting location of R(7) gives a default of 4 loops (filling R(7),
R(8), R(9), and R(10)). Repeat operations automatically terminate at the
last row of the result array. Existing values in the rows and columns of
the results matrix remain unchanged where not overwritten by the requested
input or operation values.
The stride (NINC) allows operations to be
performed at regular intervals. It has no effect on the total number of row
operations. Skipped operations retain the previous result. For example, *DIM,R,,6,
with a starting location of R(1), NROW = 10, and NINC =
2 calculates values for locations R(1), R(3), and R(5) and retains values
for locations R(2), R(4), and R(6). A more general skip control may be done
by masking [*VMASK]. The row control settings are reset to the defaults after each *VXX or *MXX operation. Use *VSTAT to
list settings.
This command is valid in any processor.