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Support direct programming interface (DPI) "import".

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This commit is contained in:
Wilson Snyder
2009-12-03 06:55:29 -05:00
parent f8cb6979d7
commit a40fae04ce
33 changed files with 1639 additions and 124 deletions
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src/V3Simulate.h
+5 -3
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@@ -290,6 +290,7 @@ private:
}
virtual void visit(AstNodeFTask* nodep, AstNUser*) {
if (!m_params) { badNodeType(nodep); return; }
if (nodep->dpiImport()) { clearOptimizable(nodep,"DPI import functions aren't simulatable"); }
checkNodeInfo(nodep);
nodep->iterateChildren(*this);
}
@@ -505,9 +506,9 @@ private:
virtual void visit(AstFuncRef* nodep, AstNUser*) {
UINFO(5," FUNCREF "<<nodep<<endl);
if (!m_params) { badNodeType(nodep); return; }
AstFunc* funcp = nodep->taskp()->castFunc(); if (!funcp) nodep->v3fatalSrc("Not linked");
AstNodeFTask* funcp = nodep->taskp()->castNodeFTask(); if (!funcp) nodep->v3fatalSrc("Not linked");
if (m_params) { V3Width::widthParamsEdit(funcp); } funcp=NULL; // Make sure we've sized the function
funcp = nodep->taskp()->castFunc(); if (!funcp) nodep->v3fatalSrc("Not linked");
funcp = nodep->taskp()->castNodeFTask(); if (!funcp) nodep->v3fatalSrc("Not linked");
// Apply function call values to function
// Note we'd need a stack if we allowed recursive functions!
V3TaskConnects tconnects = V3Task::taskConnects(nodep, nodep->taskp()->stmtsp());
@@ -532,7 +533,8 @@ private:
// Evaluate the function
funcp->accept(*this);
if (!m_checkOnly && optimizable()) {
// Grab return value from output variable
// Grab return value from output variable (if it's a function)
if (!funcp->fvarp()) nodep->v3fatalSrc("Function reference points at non-function");
newNumber(nodep)->opAssign(*fetchNumber(funcp->fvarp()));
}
}