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I'm having trouble getting these to build with homebrew python3 on mojave. I have installed boost and boost-python3 and made the following changes to build.sh to tell it to use python3:
```
if [[…
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When manually instantiating the `DP16KD` primitive with the `REGMODE_A` or `REGMODE_B` parameter set to `OUTREG`, the value is ignored and the `DP16KD` is instantiated as though the register mode was …
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I have been yosys and nextpnr-ice40 from v1.5.6 of the fomu-toolchain, downloaded from https://github.com/im-tomu/fomu-toolchain/releases/tag/v1.5.6
The version number reported by the fomu-toolchai…
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I am currently building nextpnr three times independently:
```Dockerfile
FROM nextpnr-build-base AS nextpnr-ice40-build
COPY --from=icestorm-build /opt/icestorm/usr/local/share/icebox /usr/local/…
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Installing icestorm & nextpnr to a non-standard location will cause nextpnr some confusion:
```
make -C icestorm install PREFIX=/opt/fpga
...
cmake -DARCH=ice40 -DCMAKE_INSTALL_PREFIX=/opt/fpga …
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I have created an small project to show the error.
https://github.com/messaging-cells/bug_synth_01
The expected behavior is to make OK when NS_SHOW_ERROR in
https://github.com/messaging-cells/…
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Minor detail, but `nextpnr-xilinx` crashes with an exception when the `--chipdb` command-line argument is not supplied. On 95d7a1d:
```
$ gdb ./nextpnr-xilinx
GNU gdb (GDB) 8.3.1
Copyright (C) 2…
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The following lines cause building NextPNR on Mac to fail. For some reason, Cmake 3.16 thinks Mac is windows...
Is there a way to get around this? Do we need to support CygWin builds, nextpnr works…
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The pinout CSV from Lattice contains the following for pin R16 and R17:
```
121,PB18A,8,WRITEN,-,-,-,T3,R16,M9
115,PB13A,8,SN/CSN,True_OF_PB13B,-,-,T2,R17,R8
```
The corresponding entries in `iod…