luke/verilator
1
0
Fork 0
mirror of https://github.com/verilator/verilator.git synced 2026-09-05 00:41:39 +02:00
Code Issues Packages Projects Releases Wiki Activity

Support direct programming interface (DPI) "import".

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files
src/V3AstNodes.cpp
+76 -7
View File
@@ -102,16 +102,80 @@ string AstVar::verilogKwd() const {
}
}
string AstVar::cType() const {
if (widthMin() == 1) {
return "bool";
string AstVar::vlArgType(bool named, bool forReturn) const {
if (forReturn) named=false;
if (forReturn) v3fatalSrc("verilator internal data is never passed as return, but as first argument");
string arg;
if (isWide() && isInOnly()) arg += "const ";
if (widthMin() <= 8) {
arg += "CData";
} else if (widthMin() <= 16) {
arg += "SData";
} else if (widthMin() <= VL_WORDSIZE) {
return "uint32_t";
arg += "IData";
} else if (isQuad()) {
arg += "QData";
} else if (isWide()) {
return "uint32_t"; // []'s added later
} else {
return "uint64_t";
arg += "WData"; // []'s added later
}
if (isWide()) {
arg += " (& "+name();
arg += ")["+cvtToStr(widthWords())+"]";
} else {
if (isOutput()) arg += "&";
if (named) arg += " "+name();
}
return arg;
}
string AstVar::cpubArgType(bool named, bool forReturn) const {
if (forReturn) named=false;
string arg;
if (isWide() && isInOnly()) arg += "const ";
if (widthMin() == 1) {
arg += "bool";
} else if (widthMin() <= VL_WORDSIZE) {
arg += "uint32_t";
} else if (isWide()) {
arg += "uint32_t"; // []'s added later
} else {
arg += "uint64_t";
}
if (isWide()) {
if (forReturn) v3error("Unsupported: Public functions with >64 bit outputs; make an output of a public task instead");
arg += " (& "+name();
arg += ")["+cvtToStr(widthWords())+"]";
} else {
if (isOutput() && !forReturn) arg += "&";
if (named) arg += " "+name();
}
return arg;
}
string AstVar::dpiArgType(bool named, bool forReturn) const {
if (forReturn) named=false;
string arg;
if (!basicp()) arg = "UNKNOWN";
if (isWide()) v3error("Unsupported: DPI functions with vectored outputs > 32-bits");
if (basicp()->isBitLogic()) {
if (widthMin() == 1) {
arg = "unsigned char";
if (!forReturn && isOutput()) arg += "*";
} else {
if (forReturn) {
arg = "svBitVecVal";
} else if (isInOnly()) {
arg = "const svBitVecVal*";
} else {
arg = "svBitVecVal*";
}
}
} else {
arg = basicp()->keyword().dpiType();
if (!forReturn && isOutput()) arg += "*";
}
if (named) arg += " "+name();
return arg;
}
string AstVar::scType() const {
@@ -467,6 +531,9 @@ void AstNodeFTaskRef::dump(ostream& str) {
void AstNodeFTask::dump(ostream& str) {
this->AstNode::dump(str);
if (taskPublic()) str<<" [PUBLIC]";
if (prototype()) str<<" [PROTOTYPE]";
if (dpiImport()) str<<" [DPII]";
if (dpiImport() && cname()!=name()) str<<" [c="<<cname()<<"]";
}
void AstBegin::dump(ostream& str) {
this->AstNode::dump(str);
@@ -508,4 +575,6 @@ void AstCCall::dump(ostream& str) {
void AstCFunc::dump(ostream& str) {
this->AstNode::dump(str);
if (slow()) str<<" [SLOW]";
if (pure()) str<<" [PURE]";
if (dpiImport()) str<<" [DPII]";
}