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/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2018 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "design.h"
#ifndef CHIP_H
#define CHIP_H
struct DelayInfo
{
float delay = 0;
float raiseDelay() { return delay; }
float fallDelay() { return delay; }
};
typedef IdString BelType;
typedef IdString PortPin;
static inline IdString belTypeToId(BelType type) { return type; }
static inline IdString portPinToId(PortPin type) { return type; }
static inline BelType belTypeFromId(IdString id) { return id; }
static inline PortPin portPinFromId(IdString id) { return id; }
struct BelId
{
uint8_t tile_x = 0, tile_y = 0;
uint16_t index = 0;
bool nil() const {
return !tile_x && !tile_y && !index;
}
} __attribute__((packed));
struct WireId
{
uint8_t tile_x = 0, tile_y = 0;
uint16_t index = 0;
bool nil() const {
return !tile_x && !tile_y && !index;
}
} __attribute__((packed));
namespace std
{
template<> struct hash<BelId>
{
std::size_t operator()(const BelId &bel) const noexcept
{
std::size_t result = std::hash<int>{}(bel.index);
result ^= std::hash<int>{}(bel.tile_x) + 0x9e3779b9 + (result << 6) + (result >> 2);
result ^= std::hash<int>{}(bel.tile_y) + 0x9e3779b9 + (result << 6) + (result >> 2);
return result;
}
};
template<> struct hash<WireId>
{
std::size_t operator()(const WireId &wire) const noexcept
{
std::size_t result = std::hash<int>{}(wire.index);
result ^= std::hash<int>{}(wire.tile_x) + 0x9e3779b9 + (result << 6) + (result >> 2);
result ^= std::hash<int>{}(wire.tile_y) + 0x9e3779b9 + (result << 6) + (result >> 2);
return result;
}
};
}
struct BelIterator
{
BelId *ptr = nullptr;
void operator++() { ptr++; }
bool operator!=(const BelIterator &other) const { return ptr != other.ptr; }
BelId operator*() const { return *ptr; }
};
struct BelRange
{
BelIterator b, e;
BelIterator begin() const { return b; }
BelIterator end() const { return e; }
};
struct WireIterator
{
WireId *ptr = nullptr;
void operator++() { ptr++; }
bool operator!=(const WireIterator &other) const { return ptr != other.ptr; }
WireId operator*() const { return *ptr; }
};
struct WireRange
{
WireIterator b, e;
WireIterator begin() const { return b; }
WireIterator end() const { return e; }
};
struct WireDelay
{
WireId wire;
DelayInfo delay;
};
struct WireDelayIterator
{
WireDelay *ptr = nullptr;
void operator++() { ptr++; }
bool operator!=(const WireDelayIterator &other) const { return ptr != other.ptr; }
WireDelay operator*() const { return *ptr; }
};
struct WireDelayRange
{
WireDelayIterator b, e;
WireDelayIterator begin() const { return b; }
WireDelayIterator end() const { return e; }
};
struct BelPin
{
BelId bel;
PortPin pin;
};
struct BelPinIterator
{
BelPin *ptr = nullptr;
void operator++() { ptr++; }
bool operator!=(const BelPinIterator &other) const { return ptr != other.ptr; }
BelPin operator*() const { return *ptr; }
};
struct BelPinRange
{
BelPinIterator b, e;
BelPinIterator begin() const { return b; }
BelPinIterator end() const { return e; }
};
struct GuiLine
{
float x1, y1, x2, y2;
};
struct ChipArgs
{
// ...
};
struct Chip
{
// ...
Chip(ChipArgs args);
void setBelActive(BelId bel, bool active);
bool getBelActive(BelId bel);
BelId getBelByName(IdString name) const;
WireId getWireByName(IdString name) const;
IdString getBelName(BelId bel) const;
IdString getWireName(WireId wire) const;
BelRange getBels() const;
BelRange getBelsByType(BelType type) const;
BelType getBelType(BelId bel) const;
void getBelPosition(BelId bel, float &x, float &y) const;
void getWirePosition(WireId wire, float &x, float &y) const;
vector<GuiLine> getBelGuiLines(BelId bel) const;
vector<GuiLine> getWireGuiLines(WireId wire) const;
WireRange getWires() const;
WireDelayRange getWiresUphill(WireId wire) const;
WireDelayRange getWiresDownhill(WireId wire) const;
WireDelayRange getWiresBidir(WireId wire) const;
WireDelayRange getWireAliases(WireId wire) const;
// the following will only operate on / return "active" BELs
// multiple active uphill BELs for a wire will cause a runtime error
WireId getWireBelPin(BelId bel, PortPin pin) const;
BelPin getBelPinUphill(WireId wire) const;
BelPinRange getBelPinsDownhill(WireId wire) const;
};
#endif
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