This patch fixes another minor problem introduced by the process
end of simulation events. Specifically if the compilation has
indicated we should not run do not even start the main event loop.
Parse SDF file annotations of edge sensitive delay paths.
Add vpi support for getting the specified edge sensitivity of
an edge sensitive path, and annotate paths with proper attention
to the edge that is specified for the path.
When loading a part select from the least significant bits, it is
OK to use the %load/v instruction to strip the high bits off. This
allows the zero-based part select to work in one step, without
loading excess bits.
Some patch caused a variable that held the constant base of a part
select to become unassigned. This led to unexplained failures to part
select a signal. Fix by properly detecting the case of a constant base
of 0 for the part select.
The %ix/getv instruction loads an integer register directly from
a signal vector. This is an optimization that an index register
is loaded from an expression is only a signal. It avoids the thread
vector space.
Using the parser supplied error token to get file and line number
information appears to give incorrect results at best and core dump
at worst. This patch uses the closest real token that makes sense
to alleviate this problem.
Use the new array VPI functionality (vpiIndex, vpiParent, vpiArray)
to dynamically generate array word names. The old patch to implement
was mostly reverted.
Add the array related VPI calls. These will be used to generate
the array word name only as needed to conserve space. This patch
also makes scanmem3 from the vpi test work correctly after a
slight gold file update.
Where and expression is an immediate value added to a signal value,
it is possible to optimize them to a single instruction that combines
the load with an add at the same time.
The patch for adding support for macros with arguments contained
a leftover debugging aid. This patch corrects the code. It also
should eliminate some compilation warnings.
The functor counters were left over from the v0.8 release. Rework
the counters to be relevent to the current state of vvp.
Signed-off-by: Stephen Williams <steve@icarus.com>
This patch modifies the preprocessor to handle text macros with
arguments. It also fixes a bug that prevented a `line directive
being issued after a multi-line text macro had been instantiated.
The second argument of $sdf_annotate is the scope that is to be
annotated. The argument is optional, and the default is to annotate
the current scope, where the $sdf_annotate is invoked.
Signed-off-by: Stephen Williams <steve@icarus.com>
This patch adds a -D option to iverilog-vpi and updates the manual
page to document this option and some others that were missing.
From c7347239335558b26c873ea5e64d278d1feff38a Mon Sep 17 00:00:00 2001
From: Cary R <cygcary@yahoo.com>
Date: Thu, 29 Nov 2007 10:31:25 -0800
Subject: [PATCH] LD should be based on $CC and not hardcoded to gcc
Fix the default loader so it will be whatever the default C
compiler is ($CC).
---
iverilog-vpi.sh | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/iverilog-vpi.sh b/iverilog-vpi.sh
index fbccedb..d2512cc 100644
--- a/iverilog-vpi.sh
+++ b/iverilog-vpi.sh
@@ -25,7 +25,7 @@ CXX=@IVCXX@
CFLAGS="@PIC@ @IVCFLAGS@ -I@INCLUDEDIR@"
# These are used for linking...
-LD=gcc
+LD=$CC
LDFLAGS32="@SHARED@ -L@LIBDIR@"
LDFLAGS64="@SHARED@ -L@LIBDIR64@"
LDFLAGS="$LDFLAGS64"
--
1.5.3.4
Handle the special case that the SDF CELL instance is empty. In this
case, the SDF file is requesting the current scope instead of an
instance within the scope.
Signed-off-by: Stephen Williams <steve@icarus.com>
the lexor didn't allow numbers in the IDENTIFIER name,
and the parser wasn't very nice with IDENTIFIER errors.
Signed-off-by: Stephen Williams <steve@icarus.com>
This patch adds the ability to dump array words. The words are only
dumped if they appear in a $dumpvars() statement (they are not dumped
by default). The name used for the word is <array_name>[<index>], so
you can get unexpected name conflicts.
There is also a slight increase in the memory requirements since each
array word now keeps its own name information. In the future we would
like to change this, but that is a much larger rewrite of the array
code in vvp.
This patch also needs the "Prefix escaped identifier ..." patch to
work correctly (the array word name is an escaped identifier).
Comparison operands are signed only of both operands are signed.
If one is unsigned, then they both are unsigned. This does not
affect the signedness of the comparison itself, which is unsigned.
Signed-off-by: Stephen Williams <steve@icarus.com>
Implement extended vvp command line options to control the amount
of detail that the sdf annotator emits while parsing the source
file.
Signed-off-by: Stephen Williams <steve@icarus.com>
Pass parsed SDF delays into the vvp run time as vpiScaledRealTime
variables, and handling the mapping of 2-values to 12-delays.
Signed-off-by: Stephen Williams <steve@icarus.com>
The LXT and LXT2 formats ignore/work with duplicate variables in
$dumpvars() commands, but VCD output includes extra definitions that
may cause some confusion. This patch checks for duplicates and prints
a warning when they are being suppressed.
It also corrects some error messages in the LXT and LXT2 files to not
reference VCD and some other message cleanup.
The min/typ/max default warning was not being produced in all
locations a min/typ/max expression could be used. This patch
adds the default warning code to all locations. It also
modifies the manual page to explicitly state that only the
first ten warnings are printed.
GTKWave needs to have escaped identifiers properly escaped (preceded
with a back slash) in its VCD input. Without this the name may not
display correctly. Even though it is not required, to keep things
consistent LXT and LXT2 formats also prefix escaped identifiers with
a back slash.
This patch causes unnamed generate blocks to be automatically named
using the naming scheme defined in the Verilog-2005 standard. This
is a fix for the problem discussed in pr1821610.
This patch cleans up some of the crashes in the synthesis
code by incrementing the error count as appropriate. This
also removes the three false positives in the test suite
(Sorry-Ran-PASSED). A few other messages will change in
the test suite as well (blocksynth? and basiclatch).
This was causing a core dump for a number of the vpi test cases.
The problem was that they did not need the simulation time, so it
was being set to NULL. The problem was the EndOfSimulation callback
was always setting cb_data.time to the current time. A big problem
when the pointer was NULL. The solution is to only set the time
when the pointer is not NULL
During elaboration certain constants were getting extended with
the MSB. This patch makes that happen only if the constant does
not have a length. At this point most should have a length so
effectively every unsigned value is extended with 0.
Cary R
Stephen Williams
Martic Whitaker
Larry Doolittle
Martin Whitaker