Description
The DISAGGREGATE pragma lets you deconstruct a struct variable into its individual elements. The number and type of elements
created are determined by the contents of the struct itself.
Important: Structs used as
arguments to the top-level function are aggregated by default, but can be disaggregated with
this directive or pragma. Refer to AXI4-Stream Interfaces for
important information about disaggregating structs associated with streams.
Syntax
Place the pragma in the C source within the boundaries of the region, function, or loop.
#pragma HLS disaggregate variable=<variable>Options
Where:
-
variable=<variable>: Specifies the struct variable to disaggregate.
Examples
The following example shows the struct variable a in function
foo_top will be disaggregated:
#pragma HLS disaggregate variable=a