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| author | Clifford Wolf <clifford@clifford.at> | 2019-04-23 15:46:40 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2019-04-23 21:36:59 +0200 |
| commit | 71c38d9de527e1a8b55ba295df459fbcf2a0fe47 (patch) | |
| tree | a51313b07ad0f5029792760cf7a12789a5d97a18 /kernel | |
| parent | 634482380cfe5d6a1c801af0ce04e8048c5c9baf (diff) | |
| download | yosys-71c38d9de527e1a8b55ba295df459fbcf2a0fe47.tar.gz yosys-71c38d9de527e1a8b55ba295df459fbcf2a0fe47.tar.bz2 yosys-71c38d9de527e1a8b55ba295df459fbcf2a0fe47.zip | |
Add $specrule cells for $setup/$hold/$skew specify rules
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/celltypes.h | 2 | ||||
| -rw-r--r-- | kernel/rtlil.cc | 15 |
2 files changed, 17 insertions, 0 deletions
diff --git a/kernel/celltypes.h b/kernel/celltypes.h index f8c73ed83..4e91eddda 100644 --- a/kernel/celltypes.h +++ b/kernel/celltypes.h @@ -86,6 +86,7 @@ struct CellTypes IdString A = "\\A", B = "\\B", EN = "\\EN", Y = "\\Y"; IdString SRC = "\\SRC", DST = "\\DST", DAT = "\\DAT"; + IdString EN_SRC = "\\EN_SRC", EN_DST = "\\EN_DST"; setup_type("$tribuf", {A, EN}, {Y}, true); @@ -102,6 +103,7 @@ struct CellTypes setup_type("$equiv", {A, B}, {Y}, true); setup_type("$specify2", {EN, SRC, DST}, pool<RTLIL::IdString>(), true); setup_type("$specify3", {EN, SRC, DST, DAT}, pool<RTLIL::IdString>(), true); + setup_type("$specrule", {EN_SRC, EN_DST, SRC, DST}, pool<RTLIL::IdString>(), true); } void setup_internals_eval() diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc index 4522b0a08..dae3698a9 100644 --- a/kernel/rtlil.cc +++ b/kernel/rtlil.cc @@ -1218,6 +1218,21 @@ namespace { return; } + if (cell->type == "$specrule") { + param_bool("\\SRC_PEN"); + param_bool("\\SRC_POL"); + param_bool("\\DST_PEN"); + param_bool("\\DST_POL"); + param_bool("\\LIMIT_GT"); + param("\\T_LIMIT"); + port("\\SRC_EN", 1); + port("\\DST_EN", 1); + port("\\SRC", param("\\SRC_WIDTH")); + port("\\DST", param("\\DST_WIDTH")); + check_expected(); + return; + } + if (cell->type == "$_BUF_") { check_gate("AY"); return; } if (cell->type == "$_NOT_") { check_gate("AY"); return; } if (cell->type == "$_AND_") { check_gate("ABY"); return; } |