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Implement 'forceable' attribute

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Using the 'forceable' directive in a configuration file, or the /*
verilator forceable */ metacomment on a variable declaration will
generate additional public signals that allow the specified signals to
be forced/released from the C++ code.
This commit is contained in:
Geza Lore
2022-01-16 15:31:37 +00:00
parent 539c9d4c63
commit f8c0169e82
27 changed files with 1196 additions and 6 deletions
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src/V3LinkParse.cpp
+5
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@@ -307,6 +307,11 @@ private:
UASSERT_OBJ(m_varp, nodep, "Attribute not attached to variable");
m_varp->attrClockEn(true);
VL_DO_DANGLING(nodep->unlinkFrBack()->deleteTree(), nodep);
} else if (nodep->attrType() == VAttrType::VAR_FORCEABLE) {
UASSERT_OBJ(m_varp, nodep, "Attribute not attached to variable");
m_varp->setForceable();
v3Global.setHasForceableSignals();
VL_DO_DANGLING(nodep->unlinkFrBack()->deleteTree(), nodep);
} else if (nodep->attrType() == VAttrType::VAR_PUBLIC) {
UASSERT_OBJ(m_varp, nodep, "Attribute not attached to variable");
m_varp->sigUserRWPublic(true);