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| author | Tristan Gingold <tgingold@free.fr> | 2020-02-17 18:37:09 +0100 |
|---|---|---|
| committer | Tristan Gingold <tgingold@free.fr> | 2020-02-17 18:37:09 +0100 |
| commit | 5b9ccf680b139a94bd164bd0fba57b1e4a5535d3 (patch) | |
| tree | 8acf2ea3071bbd873c358f5a51752d6d229de358 /src/synth/netlists-gates.ads | |
| parent | 4284956d63b11db7e6b003f9c5ca81ea6eb234ff (diff) | |
| download | ghdl-5b9ccf680b139a94bd164bd0fba57b1e4a5535d3.tar.gz ghdl-5b9ccf680b139a94bd164bd0fba57b1e4a5535d3.tar.bz2 ghdl-5b9ccf680b139a94bd164bd0fba57b1e4a5535d3.zip | |
synth: add mdff.
Diffstat (limited to 'src/synth/netlists-gates.ads')
| -rw-r--r-- | src/synth/netlists-gates.ads | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/synth/netlists-gates.ads b/src/synth/netlists-gates.ads index bb5e64204..848c7a10f 100644 --- a/src/synth/netlists-gates.ads +++ b/src/synth/netlists-gates.ads @@ -141,6 +141,7 @@ package Netlists.Gates is -- 2: INIT (initial value) -- Output: 0: Q Id_Idff : constant Module_Id := 52; + -- A DFF with an asynchronous reset and an initial value. -- Inputs: 0: CLK -- 1: D @@ -150,6 +151,13 @@ package Netlists.Gates is -- Output: 0: Q Id_Iadff : constant Module_Id := 53; + -- Multi clock dff. ELSE is the output of the next DFF. + -- Inputs: 0: CLK + -- 1: D + -- 2: ELSE + -- Output: 0: Q + Id_Mdff : constant Module_Id := 54; + -- Width change: truncate or extend. Sign is know in order to possibly -- detect loss of value. Id_Utrunc : constant Module_Id := 64; |