| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: gatecat <gatecat@ds0.me>
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"nextpnr.h" is no longer the god header. Important improvements:
- Functions in log.h can be used without including
BaseCtx/Arch/Context. This means that log_X functions can be called
without included "nextpnr.h"
- NPNR_ASSERT can be used without including "nextpnr.h" by including
"nextpnr_assertions.h". This allows NPNR_ASSERT to be used safely in
any header file.
- Types defined in "archdefs.h" are now available without including
BaseCtx/Arch/Context. This means that utility classes that will be
used inside of BaseCtx/Arch/Context can be defined safely in a
self-contained header.
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
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Signed-off-by: gatecat <gatecat@ds0.me>
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This replaces the arch-specific DelayInfo structure with new DelayPair
(min/max only) and DelayQuad (min/max for both rise and fall) structures
that form part of common code.
This further reduces the amount of arch-specific code; and also provides
useful data structures for timing analysis which will need to delay
with pairs/quads of delays as it is improved.
While there may be a small performance cost to arches that didn't
separate the rise/fall cases (arches that aren't currently separating
the min/max cases just need to be fixed...) in DelayInfo, my expectation
is that inlining will mean this doesn't make much difference.
Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: D. Shah <dave@ds0.me>
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Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
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Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
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Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
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Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
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If the REG_INPUTA_CLK and REG_INPUTB_CLK values are set, then we should
use the faster setup/hold timings for the 18x8 multiplier.
Similarly, check the value of REG_OUTPUT_CLK for whether or not to use
faster timings for the output.
This is based on how I currently understand the registers to work - if
anyone knows the actual rules for when each timing applies please do
chime in to correct this implementation if necessary.
Along the same lines, this PR does not address the case when the
pipeline registers are enabled, since it is not clear to me how exactly
that affects the timing.
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: David Shah <davey1576@gmail.com>
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