Altera Nios II C2H Compiler - Manual (Page 100)

4–6 9.1 Altera Corporation
Nios II C2H Compiler User Guide November 2009
Resources
Figure 4–1. Build Report - Resources
The resources section contains a subsection for each type of resource. The
report shows Avalon-MM master port resources in a different layout from
other operator resources due to the differences between the functionality.
Avalon-MM Master Port Resources
The C2H Compiler uses Avalon-MM master ports to implement
dereference operations (memory accesses). The resources section of the
C2H build report shows each Avalon-MM master port created by the C2H
Compiler. The C2H Compiler creates the optimal number of master ports
for the memory accesses it finds in the code. The C2H Compiler conserves
Avalon-MM resources by creating a single Avalon-MM master port to
access memory for multiple dereference operations if there is no
performance disadvantage. In
Example 4–1 , the data pointed to by
voltage and current reside in the same single-ported physical