This patch fixes the various PLI code that was incorrectly
using int for PLI_INT32 for functions that are used with the
vpi_systf_data and cd_data data structures.
For text macro substitutions the lexor did not allow leading underscores.
This patch fixes that omission. All other places that text macros may be
used appear to be correct.
This patch does not add the functionality needed to fix pr1489570, but
it does give an error message that is a bit more descriptive of the
current limitation (cannot do division or modulus with wide value).
Do not support (in 0.8) system functions in continuous assignments.
Make a better error message.
Signed-off-by: Stephen Williams <steve@wing.icarus.com>
This is a slightly modified version of the patch from the development
branch. Specifically it only allows outputs in the sensitivity list for
non-synthesis back ends. The text from the development patch follows.
@* was only expanding to input nets. nex_input() for blocks was removing
any output net that was also an input. There was also a bug in how output
nets were removed. Only outputs currently defined were removed from the
input list.
always @(*) begin
y = a;
z = y;
end
would report "a" as an input. While
always @(*) begin
z = y;
y = a;
end
would report both "a" and "y" as inputs.
To fix this all nex_inputs now take a flag that when true (the default)
correctly removes any output from the input list. Both the above cases
will now return "a". If the flag is false outputs which are also inputs
will be included in the input list. This is what the @* elaboration code
uses to get the correct sensitivity list.
This is a back port of code from the development branch. The problem is
that for named blocks (which create a transient thread) the look aside
was not being cleared for the new thread. This resulted in an invalid
variable reference optimization.
This code may be used for more than just a bit select so the error message
is fairly generic. Though it should help in tracking down the real problem
(invalid Verilog code).
This patch adds min_typ_max to expressions. Remember when using a
min_typ_max triplet in an expression they must be enclosed with
parenthesis (1364-2001 section 4.3 page 58).
This patch implements the $printtimescale system task. It is a back port
from the development branch. One thing to note is that the precision is
the global precision not the local precision. The patch to fix that could
also be back ported if needed, but it is significantly more work.
C style comments were not recognized as comments in false or
suppressed sections of ifdef/etc. blocks. This prohibited an
unneeded endif/else/etc. from being commented out with this
style of comment.
With -tfnf, observed
(latch 43020 1 43022 43021)
in the output file. That 3rd number is the ID of the gate nexus. However, it was only found as
(dangle 43022)
The purpose of this patch is to fix that in the common code.
Cary R
Stephen Williams
Stephen Williams
Alan M. Feldstein
steve