| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Currently the lookahead is disabled by default because of the time to
compute and RAM usage. However it does appear to work reasonably well
in testing. Further effort is required to lower RAM usage after initial
computation, and explore trade-off for cheaper time to compute.
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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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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Abseil has a hard dependency on threads (not just in the build system
but in many places in the base libraries), so there is no way to use
it on WASI at the moment.
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This lowers the CPU cost of using the flat wire map in router2, and should
use less memory as well.
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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-Werror is not enabled by default, except on CI and for a few specific common traps, to avoid the inevitable breakages when new compiler versions add new diagnostics.
Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
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Signed-off-by: William D. Jones <thor0505@comcast.net>
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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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* load wires
* add slice bels
* add IOB
* add aliases
* local aliases
* broken packing stuff
* working packer
* add constraints
* pnr runs1111
* add timing info
* constraints
* more constraint stuff
* add copyright
* remove generic reference
* remove parameters
* remove generic python api
* add newline to end of file
* some small refactoring
* warn on invalid constraints
* don't error on missing cell
* comment out debugging print
* typo
* avoid copy
* faster empty idstring
* remove intermediate variable
* no more deadnames
* fix cst warnings
* increase ripup and epsilon a bit
* take single device parameter
* add info to readme
* gui stubs
* Revert 4d03b681a8634e978bd5af73c97665500047e055
* assign ff_used in assignArchInfo
* decrease beta for better routability
* try to fix CI
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This should reduce the number of Qt5-related issues, which often prevent
even the basic command line flow from working.
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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See https://lists.j-core.org/pipermail/j-core/2020-September/000940.html
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Port nextpnr-{ice40,ecp5} to WASI
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This involves very few changes, all typical to WASM ports:
* WASM doesn't currently support threads or atomics so those are
disabled.
* WASM doesn't currently support exceptions so the exception
machinery is stubbed out.
* WASM doesn't (and can't) have mmap(), so an emulation library is
used. That library currently doesn't support MAP_SHARED flags,
so MAP_PRIVATE is used instead.
There is also an update to bring ECP5 bbasm CMake rules to parity
with iCE40 ones, since although it is possible to embed chipdb into
nextpnr on WASM, a 200 MB WASM file has very few practical uses.
The README is not updated and there is no included toolchain file
because at the moment it's not possible to build nextpnr with
upstream boost and wasi-libc. Boost requires a patch (merged, will
be available in boost 1.74.0), wasi-libc requires a few unmerged
patches.
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Signed-off-by: David Shah <dave@ds0.me>
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Change version to use git describe instead of git log as this will also work
if tags are present and make the version string set-able from outside as a
parameter to cmake, so that package managers can set this if building outside
of a git working tree.
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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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libutil is only required to be linked on Linux.
Signed-off-by: Sean Cross <sean@xobs.io>
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Signed-off-by: David Shah <dave@ds0.me>
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