diff options
Diffstat (limited to 'src/synth/netlists-builders.adb')
| -rw-r--r-- | src/synth/netlists-builders.adb | 55 |
1 files changed, 53 insertions, 2 deletions
diff --git a/src/synth/netlists-builders.adb b/src/synth/netlists-builders.adb index 59994c20a..82c69f1e4 100644 --- a/src/synth/netlists-builders.adb +++ b/src/synth/netlists-builders.adb @@ -140,6 +140,16 @@ package body Netlists.Builders is Typ => Param_Uns32))); Res := New_User_Module + (Ctxt.Design, New_Sname_Artificial (Get_Identifier ("const_SB32")), + Id_Const_SB32, 0, 1, 1); + Ctxt.M_Const_SB32 := Res; + Outputs := (0 => Create_Output ("o")); + Set_Port_Desc (Res, Port_Desc_Array'(1 .. 0 => <>), Outputs); + Set_Param_Desc + (Res, (0 => (New_Sname_Artificial (Get_Identifier ("val")), + Typ => Param_Uns32))); + + Res := New_User_Module (Ctxt.Design, New_Sname_Artificial (Get_Identifier ("const_UL32")), Id_Const_UL32, 0, 1, 2); Ctxt.M_Const_UL32 := Res; @@ -393,8 +403,10 @@ package body Netlists.Builders is Get_Identifier ("add"), Id_Add); Create_Dyadic_Module (Design, Res.M_Dyadic (Id_Sub), Get_Identifier ("sub"), Id_Sub); - Create_Dyadic_Module (Design, Res.M_Dyadic (Id_Mul), - Get_Identifier ("mul"), Id_Mul); + Create_Dyadic_Module (Design, Res.M_Dyadic (Id_Smul), + Get_Identifier ("smul"), Id_Smul); + Create_Dyadic_Module (Design, Res.M_Dyadic (Id_Umul), + Get_Identifier ("umul"), Id_Umul); Create_Monadic_Module (Design, Res.M_Monadic (Id_Not), Name_Not, Id_Not); Create_Monadic_Module (Design, Res.M_Monadic (Id_Neg), @@ -575,6 +587,21 @@ package body Netlists.Builders is return O; end Build_Const_UB32; + function Build_Const_SB32 (Ctxt : Context_Acc; + Val : Int32; + W : Width) return Net + is + pragma Assert (W > 0); + Inst : Instance; + O : Net; + begin + Inst := New_Internal_Instance (Ctxt, Ctxt.M_Const_SB32); + O := Get_Output (Inst, 0); + Set_Param_Uns32 (Inst, 0, To_Uns32 (Val)); + Set_Width (O, W); + return O; + end Build_Const_SB32; + function Build_Const_UL32 (Ctxt : Context_Acc; Val : Uns32; Xz : Uns32; @@ -641,6 +668,30 @@ package body Netlists.Builders is end if; end Build2_Const_Uns; + function Build2_Const_Int (Ctxt : Context_Acc; Val : Int64; W : Width) + return Net is + begin + if Val in -2**31 .. 2**31 - 1 then + return Build_Const_SB32 (Ctxt, Int32 (Val), W); + else + pragma Assert (W > 32); + declare + V : constant Uns64 := To_Uns64 (Val); + S : constant Uns32 := + Uns32 (Shift_Right_Arithmetic (V, 63) and 16#ffff_ffff#); + Inst : Instance; + begin + Inst := Build_Const_Bit (Ctxt, W); + Set_Param_Uns32 (Inst, 0, Uns32 (V and 16#ffff_ffff#)); + Set_Param_Uns32 (Inst, 1, Uns32 (Shift_Right (V, 32))); + for I in 2 .. (W + 31) / 32 loop + Set_Param_Uns32 (Inst, Param_Idx (I), S); + end loop; + return Get_Output (Inst, 0); + end; + end if; + end Build2_Const_Int; + function Build_Edge (Ctxt : Context_Acc; Src : Net) return Net is pragma Assert (Get_Width (Src) = 1); |