User guide

Nios II IDE Help System

Memory Dump

The following options allow you to save the contents of memory to a file after running a

program on the ISS.

Enable memory dump —When on, memory contents are dumped to a file after

program execution terminates. The resulting file name is <processor

name>_memdump.out, located in the application project directory.

o Start Address —Specifies the starting address of the memory range to dump.

o End Address —Specifies the ending address of the memory range to dump.

Other Settings

The following are options not associated with any other group of options:

Summarize system components —When on, the ISS reports details at startup

about the SOPC Builder system components connected to the processor. This report

can be a useful reminder of what components are present in the system, and which

components will not simulate accurately.

Additional nios2-iss arguments—Specifies the command line arguments to pass to

nios2-iss when launching. Specify the arguments as if running the ISS in a Nios II

command shell. For example, to launch the terminal window as a separate window,

type -w in the Additional nios2-iss arguments box. This option is for advanced

users only.

Note: For details on nios2-iss command line arguments, type nios2-iss --

help from the Nios II command shell.

Uninitialized memory reads—Specifies the ISS behavior when a read from

uninitialized memory occurs. The following options are available.

o Generate Error—Stops execution and generates an error.

o Generate Warning —Generates a warning message, and continues

execution. This option is useful if you know that the data read will not be used

by the processor.

o Ignore—Continues execution without generating any warning.