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author | Tristan Gingold <tgingold@free.fr> | 2019-07-10 18:57:44 +0200 |
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committer | Tristan Gingold <tgingold@free.fr> | 2019-07-10 19:06:06 +0200 |
commit | 0ef59aec0acc050d09dc74c047aa224081c4eced (patch) | |
tree | 5e2adbc6a0c5eb7245f7b3f2b69a9ab1b790a557 /src | |
parent | fef6c5f6fbec086f9b2a4bd73ccbcb346742ca0d (diff) | |
download | ghdl-0ef59aec0acc050d09dc74c047aa224081c4eced.tar.gz ghdl-0ef59aec0acc050d09dc74c047aa224081c4eced.tar.bz2 ghdl-0ef59aec0acc050d09dc74c047aa224081c4eced.zip |
synth: add Id_Port gate to improve display.
Diffstat (limited to 'src')
-rw-r--r-- | src/synth/netlists-builders.adb | 24 | ||||
-rw-r--r-- | src/synth/netlists-builders.ads | 2 | ||||
-rw-r--r-- | src/synth/netlists-disp_vhdl.adb | 22 | ||||
-rw-r--r-- | src/synth/netlists-gates.ads | 47 | ||||
-rw-r--r-- | src/synth/synth-insts.adb | 7 |
5 files changed, 73 insertions, 29 deletions
diff --git a/src/synth/netlists-builders.adb b/src/synth/netlists-builders.adb index 8d6534b42..27364f109 100644 --- a/src/synth/netlists-builders.adb +++ b/src/synth/netlists-builders.adb @@ -272,22 +272,26 @@ package body Netlists.Builders is Outputs := (0 => Create_Output ("o")); Ctxt.M_Output := New_User_Module - (Ctxt.Design, New_Sname_Artificial (Get_Identifier ("output")), + (Ctxt.Design, New_Sname_Artificial (Name_Output), Id_Output, 1, 1, 0); Set_Port_Desc (Ctxt.M_Output, Inputs, Outputs); Ctxt.M_Signal := New_User_Module - (Ctxt.Design, New_Sname_Artificial (Get_Identifier ("signal")), + (Ctxt.Design, New_Sname_Artificial (Name_Signal), Id_Signal, 1, 1, 0); Set_Port_Desc (Ctxt.M_Signal, Inputs, Outputs); - Inputs2 := (0 => Create_Input ("i"), 1 => Create_Input ("init")); Ctxt.M_Isignal := New_User_Module (Ctxt.Design, New_Sname_Artificial (Get_Identifier ("isignal")), Id_Isignal, 2, 1, 0); Set_Port_Desc (Ctxt.M_Isignal, Inputs2, Outputs); + + Ctxt.M_Port := New_User_Module + (Ctxt.Design, New_Sname_Artificial (Name_Port), + Id_Port, 1, 1, 0); + Set_Port_Desc (Ctxt.M_Port, Inputs, Outputs); end Create_Objects_Module; procedure Create_Dff_Modules (Ctxt : Context_Acc) @@ -763,6 +767,20 @@ package body Netlists.Builders is return O; end Build_Isignal; + function Build_Port (Ctxt : Context_Acc; N : Net) return Net + is + Wd : constant Width := Get_Width (N); + pragma Assert (Wd /= No_Width); + Inst : Instance; + O : Net; + begin + Inst := New_Internal_Instance (Ctxt, Ctxt.M_Port); + O := Get_Output (Inst, 0); + Set_Width (O, Wd); + Connect (Get_Input (Inst, 0), N); + return O; + end Build_Port; + function Build_Dff (Ctxt : Context_Acc; Clk : Net; D : Net) return Net diff --git a/src/synth/netlists-builders.ads b/src/synth/netlists-builders.ads index 85d31a248..7c016dedc 100644 --- a/src/synth/netlists-builders.ads +++ b/src/synth/netlists-builders.ads @@ -94,6 +94,7 @@ package Netlists.Builders is return Net; function Build_Isignal (Ctxt : Context_Acc; Name : Sname; Init : Net) return Net; + function Build_Port (Ctxt : Context_Acc; N : Net) return Net; procedure Build_Assert (Ctxt : Context_Acc; Cond : Net); procedure Build_Assume (Ctxt : Context_Acc; Cond : Net); @@ -134,6 +135,7 @@ private M_Output : Module; M_Signal : Module; M_Isignal : Module; + M_Port : Module; M_Dff : Module; M_Idff : Module; M_Adff : Module; diff --git a/src/synth/netlists-disp_vhdl.adb b/src/synth/netlists-disp_vhdl.adb index 72003c04f..f12dd7811 100644 --- a/src/synth/netlists-disp_vhdl.adb +++ b/src/synth/netlists-disp_vhdl.adb @@ -299,7 +299,24 @@ package body Netlists.Disp_Vhdl is Put_Interface_Name (Get_Output_Desc (Imod, Idx).Name); Idx := Idx + 1; Put (" => "); - Disp_Net_Name (O); + declare + I : Input; + O_Inst : Instance; + begin + I := Get_First_Sink (O); + if I /= No_Input then + O_Inst := Get_Parent (I); + else + O_Inst := No_Instance; + end if; + if O_Inst /= No_Instance + and then Get_Id (O_Inst) = Id_Port + then + Disp_Net_Name (Get_Output (O_Inst, 0)); + else + Disp_Net_Name (O); + end if; + end; end loop; Put_Line (");"); end Disp_Instance_Gate; @@ -477,6 +494,8 @@ package body Netlists.Disp_Vhdl is Disp_Template (" \o0 <= \i0; -- (output)" & NL, Inst); when Id_Signal => Disp_Template (" \o0 <= \i0; -- (signal)" & NL, Inst); + when Id_Port => + null; when Id_Not => Disp_Template (" \o0 <= not \i0;" & NL, Inst); when Id_Extract => @@ -660,6 +679,7 @@ package body Netlists.Disp_Vhdl is for Inst of Instances (M) loop if not Is_Self_Instance (Inst) and then not (Flag_Merge_Lit and then Is_Const (Get_Id (Inst))) + and then Get_Id (Inst) < Id_User_None then for N of Outputs (Inst) loop Put (" signal "); diff --git a/src/synth/netlists-gates.ads b/src/synth/netlists-gates.ads index 8d8d5af42..44b5486bf 100644 --- a/src/synth/netlists-gates.ads +++ b/src/synth/netlists-gates.ads @@ -79,6 +79,7 @@ package Netlists.Gates is Id_Signal : constant Module_Id := 35; Id_Isignal : constant Module_Id := 36; Id_Output : constant Module_Id := 37; + Id_Port : constant Module_Id := 38; -- Note: initial values must be constant nets. -- @@ -87,70 +88,70 @@ package Netlists.Gates is -- input. -- Inputs: CLK, D -- Output: Q - Id_Dff : constant Module_Id := 38; + Id_Dff : constant Module_Id := 40; -- A DFF with an asynchronous reset. Note that the asynchronous reset -- has priority over the clock. When RST is asserted, the value is -- set to RST_VAL. -- Inputs: CLK, D, RST, RST_VAL -- Output: Q - Id_Adff : constant Module_Id := 39; + Id_Adff : constant Module_Id := 41; -- A simple DFF with an initial value (must be constant). This is -- for FPGAs. - Id_Idff : constant Module_Id := 40; + Id_Idff : constant Module_Id := 42; -- A DFF with an asynchronous reset and an initial value. - Id_Iadff : constant Module_Id := 41; + Id_Iadff : constant Module_Id := 43; -- Width change: truncate or extend. Sign is know in order to possibly -- detect loss of value. - Id_Utrunc : constant Module_Id := 42; - Id_Strunc : constant Module_Id := 43; - Id_Uextend : constant Module_Id := 44; - Id_Sextend : constant Module_Id := 45; + Id_Utrunc : constant Module_Id := 46; + Id_Strunc : constant Module_Id := 47; + Id_Uextend : constant Module_Id := 48; + Id_Sextend : constant Module_Id := 49; subtype Truncate_Module_Id is Module_Id range Id_Utrunc .. Id_Strunc; subtype Extend_Module_Id is Module_Id range Id_Uextend .. Id_Sextend; -- Extract a bit or a slice at a constant offset. -- OUT := IN0[OFF+WD-1:OFF] - Id_Extract : constant Module_Id := 46; + Id_Extract : constant Module_Id := 50; -- OUT := IN0[IN1*STEP+OFF+WD-1:IN1*STEP+OFF] - Id_Dyn_Extract : constant Module_Id := 47; + Id_Dyn_Extract : constant Module_Id := 51; -- This gate has two inputs I, V and one parameter POS. -- It replaces bits POS + width(V) - 1 .. POS of I by V, ie: -- T := I; -- T [POS+width(V)-1:POS] := V -- OUT := T. - Id_Insert : constant Module_Id := 48; + Id_Insert : constant Module_Id := 52; -- Like Insert but for dynamic values. -- T := IN0 -- T [IN2*STEP+OFF+WD-1:IN2*STEP+OFF] := IN1 -- OUT := T - Id_Dyn_Insert : constant Module_Id := 49; + Id_Dyn_Insert : constant Module_Id := 53; -- Positive/rising edge detector. This is a pseudo gate. -- A negative edge detector can be made using by negating the clock before -- the detector. - Id_Edge : constant Module_Id := 50; + Id_Edge : constant Module_Id := 55; -- Input signal must always be true. - Id_Assert : constant Module_Id := 51; - Id_Assume : constant Module_Id := 52; + Id_Assert : constant Module_Id := 56; + Id_Assume : constant Module_Id := 57; -- Constants are gates with only one constant output. There are multiple -- kind of constant gates: for small width, the value is stored as a -- parameter, possibly signed or unsigned extended. For large width -- (> 128), the value is stored in a table. - Id_Const_UB32 : constant Module_Id := 56; - Id_Const_SB32 : constant Module_Id := 57; - Id_Const_UB64 : constant Module_Id := 58; - Id_Const_SB64 : constant Module_Id := 59; - Id_Const_UB128 : constant Module_Id := 60; - Id_Const_SB128 : constant Module_Id := 61; - Id_Const_UL32 : constant Module_Id := 62; - Id_Const_SL32 : constant Module_Id := 63; + Id_Const_UB32 : constant Module_Id := 64; + Id_Const_SB32 : constant Module_Id := 65; + Id_Const_UB64 : constant Module_Id := 66; + Id_Const_SB64 : constant Module_Id := 67; + Id_Const_UB128 : constant Module_Id := 68; + Id_Const_SB128 : constant Module_Id := 69; + Id_Const_UL32 : constant Module_Id := 70; + Id_Const_SL32 : constant Module_Id := 71; end Netlists.Gates; diff --git a/src/synth/synth-insts.adb b/src/synth/synth-insts.adb index e29aed75b..5bffaacbf 100644 --- a/src/synth/synth-insts.adb +++ b/src/synth/synth-insts.adb @@ -276,6 +276,7 @@ package body Synth.Insts is Nbr_Outputs := 0; while Is_Valid (Inter) loop if not Is_Fully_Constrained_Type (Get_Type (Inter)) then + -- TODO raise Internal_Error; end if; Synth_Declaration_Type (Sub_Inst, Inter); @@ -315,6 +316,7 @@ package body Synth.Insts is Assoc : Node; Assoc_Inter : Node; Actual : Node; + Port : Net; O : Value_Acc; begin Assoc := Get_Port_Map_Aspect_Chain (Stmt); @@ -343,8 +345,9 @@ package body Synth.Insts is Nbr_Inputs := Nbr_Inputs + 1; when Port_Out | Port_Inout => - O := Create_Value_Net (Get_Output (Inst, Nbr_Outputs), - null); + Port := Get_Output (Inst, Nbr_Outputs); + Port := Builders.Build_Port (Build_Context, Port); + O := Create_Value_Net (Port, null); Synth_Assignment (Syn_Inst, Actual, O); Nbr_Outputs := Nbr_Outputs + 1; end case; |