diff options
Diffstat (limited to 'src/synth/netlists-builders.adb')
| -rw-r--r-- | src/synth/netlists-builders.adb | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/synth/netlists-builders.adb b/src/synth/netlists-builders.adb index d0d4b20be..d3eaf6a0a 100644 --- a/src/synth/netlists-builders.adb +++ b/src/synth/netlists-builders.adb @@ -566,6 +566,20 @@ package body Netlists.Builders is Outputs); end Create_Dff_Modules; + procedure Create_Latch_Modules (Ctxt : Context_Acc) + is + Outputs : Port_Desc_Array (0 .. 0); + begin + Ctxt.M_Dlatch := New_User_Module + (Ctxt.Design, + New_Sname_Artificial (Get_Identifier ("dlatch"), No_Sname), + Id_Dlatch, 2, 1, 0); + Outputs := (0 => Create_Output ("q")); + Set_Ports_Desc (Ctxt.M_Dlatch, (0 => Create_Input ("d"), + 1 => Create_Input ("en", 1)), + Outputs); + end Create_Latch_Modules; + procedure Create_Assert_Assume_Cover (Ctxt : Context_Acc) is Outputs : Port_Desc_Array (1 .. 0); @@ -758,6 +772,7 @@ package body Netlists.Builders is Create_Mux_Modules (Res); Create_Objects_Module (Res); Create_Dff_Modules (Res); + Create_Latch_Modules (Res); Create_Assert_Assume_Cover (Res); @@ -1589,6 +1604,21 @@ package body Netlists.Builders is return O; end Build_Midff; + function Build_Dlatch (Ctxt : Context_Acc; En : Net; D : Net) return Net + is + Wd : constant Width := Get_Width (D); + pragma Assert (Get_Width (En) = 1); + Inst : Instance; + O : Net; + begin + Inst := New_Internal_Instance (Ctxt, Ctxt.M_Dlatch); + O := Get_Output (Inst, 0); + Set_Width (O, Wd); + Connect (Get_Input (Inst, 0), D); + Connect (Get_Input (Inst, 1), En); + return O; + end Build_Dlatch; + function Build_Tri (Ctxt : Context_Acc; En : Net; D : Net) return Net is Wd : constant Width := Get_Width (D); |