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Add DelayPair and DelayQuad structures

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Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2021-02-17 11:38:39 +00:00
parent 5dcb59b13d
commit 8376db94a7
1 changed files with 35 additions and 0 deletions
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35
common/nextpnr.h
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@ -556,6 +556,41 @@ struct Property
inline bool operator==(const Property &a, const Property &b) { return a.is_string == b.is_string && a.str == b.str; }
inline bool operator!=(const Property &a, const Property &b) { return a.is_string != b.is_string || a.str != b.str; }
// minimum and maximum delay
struct DelayPair
{
DelayPair(){};
explicit DelayPair(delay_t delay) : min_delay(delay), max_delay(delay){};
DelayPair(delay_t min_delay, delay_t max_delay) : min_delay(min_delay), max_delay(max_delay){};
delay_t minDelay() const { return min_delay; };
delay_t maxDelay() const { return max_delay; };
delay_t min_delay, max_delay;
DelayPair operator+(const DelayPair &other) const
{
return {min_delay + other.min_delay, max_delay + other.max_delay};
}
};
// four-quadrant, min and max rise and fall delay
struct DelayQuad
{
DelayPair rise, fall;
explicit DelayQuad(delay_t delay) : rise(delay), fall(delay){};
DelayQuad(delay_t min_delay, delay_t max_delay) : rise(min_delay, max_delay), fall(min_delay, max_delay){};
DelayQuad(DelayPair rise, DelayPair fall) : rise(rise), fall(fall){};
DelayQuad(delay_t min_rise, delay_t max_rise, delay_t min_fall, delay_t max_fall)
: rise(min_rise, max_rise), fall(min_fall, max_fall){};
delay_t minRiseDelay() const { return rise.minDelay(); };
delay_t maxRiseDelay() const { return rise.maxDelay(); };
delay_t minFallDelay() const { return fall.minDelay(); };
delay_t maxFallDelay() const { return fall.maxDelay(); };
delay_t minDelay() const { return std::min<delay_t>(rise.minDelay(), fall.minDelay()); };
delay_t maxDelay() const { return std::max<delay_t>(rise.maxDelay(), fall.maxDelay()); };
DelayQuad operator+(const DelayQuad &other) const { return {rise + other.rise, fall + other.fall}; }
};
struct ClockConstraint;
struct NetInfo : ArchNetInfo