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Added is_signed argument to SigSpec.as_int() and Const.as_int()

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This commit is contained in:
Clifford Wolf 2014-08-24 15:14:00 +02:00
parent 9c5a63c52c
commit eda603105e
2 changed files with 9 additions and 6 deletions
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11
kernel/rtlil.cc
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@ -92,12 +92,15 @@ bool RTLIL::Const::as_bool() const
return false;
}
int RTLIL::Const::as_int() const
int RTLIL::Const::as_int(bool is_signed) const
{
int ret = 0;
int32_t ret = 0;
for (size_t i = 0; i < bits.size() && i < 32; i++)
if (bits[i] == RTLIL::S1)
ret |= 1 << i;
if (is_signed && bits.back() == RTLIL::S1)
for (size_t i = bits.size(); i < 32; i++)
ret |= 1 << i;
return ret;
}
@ -2647,14 +2650,14 @@ bool RTLIL::SigSpec::as_bool() const
return false;
}
int RTLIL::SigSpec::as_int() const
int RTLIL::SigSpec::as_int(bool is_signed) const
{
cover("kernel.rtlil.sigspec.as_int");
pack();
log_assert(is_fully_const() && SIZE(chunks_) <= 1);
if (width_)
return chunks_[0].data.as_int();
return chunks_[0].data.as_int(is_signed);
return 0;
}

4
kernel/rtlil.h
View file

@ -436,7 +436,7 @@ struct RTLIL::Const
bool operator !=(const RTLIL::Const &other) const;
bool as_bool() const;
int as_int() const;
int as_int(bool is_signed = false) const;
std::string as_string() const;
std::string decode_string() const;
@ -1038,7 +1038,7 @@ public:
bool has_marked_bits() const;
bool as_bool() const;
int as_int() const;
int as_int(bool is_signed = false) const;
std::string as_string() const;
RTLIL::Const as_const() const;
RTLIL::Wire *as_wire() const;