[Iverilog-devel] Integrating va_math into git

[Stephen W. <st...@ic...>]

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I'm thinking that it's not a bad time right now to integrate the
contributed va_math library into the Icarus Verilog git distribution.
We get to decide on a method.

1. The va_math.c code is pretty compact. We could just include it
as part of the system.vpi in the vpi/ directory. This would also
mean that the va_math.sft becomes part of the system.sft file and
every user just gets it.

2. We could include it in the vpi/ directory, but make a separate
va_math.vpi module. The vpi/Makefile.in would gain the rules needed
to make and install the va_math.vpi module and install the va_math.sft.

3. Create a va_math directory similar to the vpi/ directory.


Option #1 has the advantage that it is completely transparent to
the Icarus Verilog user, except that now there are all these
nifty new system functions. The only disadvantage I can think of
it that there is a slight bit of bloat in system.vpi. There is
also some name space pollution.

Option #2 has the advantage that system.vpi and va_math.vpi are
kept lighter weight. Name space pollution is also reduced. The
disadvantage is that the user has to use the -mXXX flags to load
the va_math library. (That's not unlike the "-lm" flag that C
programmers sometimes have to remember.)

Option #3 is just a worse version of #2.

Preferences?

- --
Steve Williams                "The woods are lovely, dark and deep.
steve at icarus.com           But I have promises to keep,
http://www.icarus.com         and lines to code before I sleep,
http://www.picturel.com       And lines to code before I sleep."
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