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cb65407 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | # Third-party code
This directory contains code from various third parties, which is distributed
together with cocotb. Note that some code may be licensed differently from
cocotb itself; refer to the individual files for details.
## SystemVerilog VPI
The headers `vpi/vpi_user.h` and `vpi/sv_vpi_user.sv` are part of the
SystemVerilog LRM.
## VHPI
The header `vhpi/vhpi_user.h` is part of the VHPI/VHDL standard.
## ModelSim/Questa FLI
The header `fli/mti.h` is part of the Siemens EDA Questa distribution and
distributed under the
[Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0).
The header `fli/acc_user.h` defines the PLI ACC (access) routines.
The file is part of the
[Verilog 2001 LRM](https://standards.ieee.org/ieee/1364/2052/) (IEEE 1364-2001),
Annex E, and is shipped in a version as modified by Siemens EDA.
The header `fli/acc_vhdl.h` is a ModelSim/Questa extension to the PLI standard to
support VHDL.
## TCL
The files in the `tcl` directory are part of the
[Tcl 8.6.5 source code](https://www.tcl.tk/software/tcltk/download.html), which
is distributed under a BSD license. Refer to `tcl/license.terms` for details.
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