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| author | Xiretza <xiretza@xiretza.xyz> | 2020-04-08 19:30:47 +0200 |
|---|---|---|
| committer | Xiretza <xiretza@xiretza.xyz> | 2020-05-28 22:59:03 +0200 |
| commit | 17163cf43a6b6eec9aac44f6a4463dda54b8ed68 (patch) | |
| tree | 02dd1e144c36eb40565cbb792726c7d8d4573eb4 /passes/cmds | |
| parent | 0d99522b3c2ca2502129110e09f9988874e37abc (diff) | |
| download | yosys-17163cf43a6b6eec9aac44f6a4463dda54b8ed68.tar.gz yosys-17163cf43a6b6eec9aac44f6a4463dda54b8ed68.tar.bz2 yosys-17163cf43a6b6eec9aac44f6a4463dda54b8ed68.zip | |
Add flooring modulo operator
The $div and $mod cells use truncating division semantics (rounding
towards 0), as defined by e.g. Verilog. Another rounding mode, flooring
(rounding towards negative infinity), can be used in e.g. VHDL. The
new $modfloor cell provides this flooring modulo (also known as "remainder"
in several languages, but this name is ambiguous).
This commit also fixes the handling of $mod in opt_expr, which was
previously optimized as if it was $modfloor.
Diffstat (limited to 'passes/cmds')
| -rw-r--r-- | passes/cmds/stat.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/passes/cmds/stat.cc b/passes/cmds/stat.cc index 6c4bc0e5b..e979685e0 100644 --- a/passes/cmds/stat.cc +++ b/passes/cmds/stat.cc @@ -109,7 +109,7 @@ struct statdata_t ID($lut), ID($and), ID($or), ID($xor), ID($xnor), ID($shl), ID($shr), ID($sshl), ID($sshr), ID($shift), ID($shiftx), ID($lt), ID($le), ID($eq), ID($ne), ID($eqx), ID($nex), ID($ge), ID($gt), - ID($add), ID($sub), ID($mul), ID($div), ID($mod), ID($pow), ID($alu))) { + ID($add), ID($sub), ID($mul), ID($div), ID($mod), ID($modfloor), ID($pow), ID($alu))) { int width_a = cell->hasPort(ID::A) ? GetSize(cell->getPort(ID::A)) : 0; int width_b = cell->hasPort(ID::B) ? GetSize(cell->getPort(ID::B)) : 0; int width_y = cell->hasPort(ID::Y) ? GetSize(cell->getPort(ID::Y)) : 0; |