SetundefWorker Struct Reference

Public Member Functions
RTLIL::State	next_bit ()
void	operator() (RTLIL::SigSpec &sig)

Data Fields
int	next_bit_mode
uint32_t	next_bit_state

Detailed Description

Definition at line 29 of file setundef.cc.

Member Function Documentation

RTLIL::State SetundefWorker::next_bit ( )

inline

Definition at line 34 of file setundef.cc.

    {
        if (next_bit_mode == 0)
            return RTLIL::State::S0;

        if (next_bit_mode == 1)
            return RTLIL::State::S1;

        // xorshift32
        next_bit_state ^= next_bit_state << 13;
        next_bit_state ^= next_bit_state >> 17;
        next_bit_state ^= next_bit_state << 5;
        log_assert(next_bit_state != 0);

        return ((next_bit_state >> (next_bit_state & 15)) & 16) ? RTLIL::State::S0 : RTLIL::State::S1;
    }

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void SetundefWorker::operator() ( RTLIL::SigSpec &  sig )

inline

Definition at line 51 of file setundef.cc.

    {
        for (auto &bit : sig)
            if (bit.wire == NULL && bit.data > RTLIL::State::S1)
                bit = next_bit();
    }

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Field Documentation

int SetundefWorker::next_bit_mode

Definition at line 31 of file setundef.cc.

uint32_t SetundefWorker::next_bit_state

Definition at line 32 of file setundef.cc.

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The documentation for this struct was generated from the following file:

• setundef.cc