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| author | whitequark <whitequark@whitequark.org> | 2020-04-05 07:46:42 +0000 |
|---|---|---|
| committer | whitequark <whitequark@whitequark.org> | 2020-04-09 04:08:36 +0000 |
| commit | 9534b512770063baa48d862a375ec7a924766866 (patch) | |
| tree | a88db4f297a3cd1dea18453475fa47312cddf77c /backends/cxxrtl | |
| parent | 01e6850bd3b9c884a0ea9785ff5ff1ffd59b82e2 (diff) | |
| download | yosys-9534b512770063baa48d862a375ec7a924766866.tar.gz yosys-9534b512770063baa48d862a375ec7a924766866.tar.bz2 yosys-9534b512770063baa48d862a375ec7a924766866.zip | |
write_cxxrtl: add support for $slice and $concat cells.
Diffstat (limited to 'backends/cxxrtl')
| -rw-r--r-- | backends/cxxrtl/cxxrtl.cc | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/backends/cxxrtl/cxxrtl.cc b/backends/cxxrtl/cxxrtl.cc index 6fd63548f..e2c33c3d7 100644 --- a/backends/cxxrtl/cxxrtl.cc +++ b/backends/cxxrtl/cxxrtl.cc @@ -189,7 +189,8 @@ static bool is_binary_cell(RTLIL::IdString type) static bool is_elidable_cell(RTLIL::IdString type) { - return is_unary_cell(type) || is_binary_cell(type) || type == ID($mux); + return is_unary_cell(type) || is_binary_cell(type) || type.in( + ID($mux), ID($concat), ID($slice)); } static bool is_ff_cell(RTLIL::IdString type) @@ -672,6 +673,20 @@ struct CxxrtlWorker { f << " : "; dump_sigspec_rhs(cell->getPort(ID(A))); f << ")"; + // Concats + } else if (cell->type == ID($concat)) { + dump_sigspec_rhs(cell->getPort(ID(B))); + f << ".concat("; + dump_sigspec_rhs(cell->getPort(ID(A))); + f << ").val()"; + // Slices + } else if (cell->type == ID($slice)) { + dump_sigspec_rhs(cell->getPort(ID(A))); + f << ".slice<"; + f << cell->getParam(ID(OFFSET)).as_int() + cell->getParam(ID(Y_WIDTH)).as_int() - 1; + f << ","; + f << cell->getParam(ID(OFFSET)).as_int(); + f << ">().val()"; } else { log_assert(false); } |