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iverilog-vpi - Online in the Cloud

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This is the command iverilog-vpi that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


iverilog-vpi - Compile front end for VPI modules

SYNOPSIS


iverilog-vpi [--name=name] sourcefile...

DESCRIPTION


iverilog-vpi is a tool to simplify the compilation of VPI modules for use with Icarus
Verilog. It takes on the command line a list of C or C++ source files, and generates as
output a linked VPI module. See the vvp(1) man page for a description of how the linked
module is loaded by a simulation.

The output is named after the first source file. For example, if the first source file is
named foo.c, the output becomes foo.vpi.

OPTIONS


iverilog-vpi accepts the following options:

-llibrary
Include the named library in the link of the VPI module. This allows VPI modules
to further reference external libraries.

-Idirectory
Add directory to the list of directories that will be search for header files.

-Ddefine
Define a macro named define.

--name=name
Normally, the output VPI module will be named after the first source file passed
to the command. This flag sets the name (without the .vpi suffix) of the output
vpi module.

--install-dir
This flag causes the program to print the install directory for VPI modules, then
exit. It is a convenience for makefiles or automated plug-in installers.

--cflags, --ldflags and --ldlibs
These flags provide compile time information.

PC-ONLY OPTIONS


The PC port of iverilog-vpi includes two special flags needed to support the more
intractable development environment. These flags help the program locate parts that it
needs.

-mingw=path
Tell the program the root of the Mingw compiler tool suite. The vvp runtime is
compiled with this compiler, and this is the compiler that iverilog-vpi expects to
use to compile your source code. This is normally not needed, and if you do use
it, it is only needed once. The compiler will save the path in the registry for
use later.

-ivl=path
Set for the use during compilation the root if the Icarus Verilog install. This is
the place where you installed Icarus Verilog when you ran the installer. This flag
is also only needed once, and the path is stored in the registry for future use.

UNIX-ONLY OPTIONS


The UNIX version of iverilog-vpi includes additional flags to let Makefile gurus peek at
the configuration of the iverilog installation. This way, Makefiles can be written that
handle complex VPI builds natively, and without hard-coding values that depend on the
system and installation. If used at all, these options must be used one at a time, and
without any other options or directives.

--cflags
Print the compiler flags (CFLAGS or CXXFLAGS) needed to compile source code
destined for a VPI module.

--ldflags
Print the linker flags (LDFLAGS) needed to link a VPI module.

--ldlibs
Print the libraries (LDLIBS) needed to link a VPI module.

-m32 On 64bit systems that support it (and support vvp32) this flag requests a 32bit
vpi binary instead of the default 64bit binary.

Example GNU makefile that takes advantage of these flags:

CFLAGS = -Wall -O $(CFLAGS_$@)
VPI_CFLAGS := $(shell iverilog-vpi --cflags)
CFLAGS_messagev.o = $(VPI_CFLAGS)
CFLAGS_fifo.o = $(VPI_CFLAGS)
messagev.o fifo.o: transport.h
messagev.vpi: messagev.o fifo.o
iverilog-vpi $^

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