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Add SigSpec::is_fully_ones()

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This commit is contained in:
Clifford Wolf 2017-12-12 21:48:31 +01:00
parent 82d1fd77de
commit 2b6307547f
2 changed files with 16 additions and 0 deletions
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15
kernel/rtlil.cc
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@ -3353,6 +3353,21 @@ bool RTLIL::SigSpec::is_fully_zero() const
return true;
}
bool RTLIL::SigSpec::is_fully_ones() const
{
cover("kernel.rtlil.sigspec.is_fully_ones");
pack();
for (auto it = chunks_.begin(); it != chunks_.end(); it++) {
if (it->width > 0 && it->wire != NULL)
return false;
for (size_t i = 0; i < it->data.size(); i++)
if (it->data[i] != RTLIL::State::S1)
return false;
}
return true;
}
bool RTLIL::SigSpec::is_fully_def() const
{
cover("kernel.rtlil.sigspec.is_fully_def");

1
kernel/rtlil.h
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@ -704,6 +704,7 @@ public:
bool is_fully_const() const;
bool is_fully_zero() const;
bool is_fully_ones() const;
bool is_fully_def() const;
bool is_fully_undef() const;
bool has_const() const;