Roots lgmap() Function

All index values stored in block[field] are transformed based on the values in the rank column; i.e. for all nline block lines, block[field] is set to rank[block[field]] provided that block[field] is not equal to zero.

Syntax

Roots.lgmap(block, cpl, nline, field, rank)

Parameter Values

Parameter	Description
block	Uint8Array memory block
cpl	The width of a memory block line
nline	The number of block lines
field	A field definition array. The first element specifies the starting byte location. The second element specifies the length in bytes.
rank	New index values for block(field)