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/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2018 David Shah <david@symbioticeda.com>
*
* 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 "timing.h"
#include <algorithm>
#include <unordered_map>
#include <utility>
#include "log.h"
NEXTPNR_NAMESPACE_BEGIN
// Follow a path, returning budget to annotate
static delay_t follow_path(Context *ctx, const PortRef &begin, int path_length,
delay_t slack)
{
if (ctx->getPortClock(begin.cell, begin.port) != IdString()) {
return slack / path_length;
} else {
// ...
}
}
void assign_budget(Context *ctx, float default_clock)
{
// TODO
}
NEXTPNR_NAMESPACE_END
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