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Diffstat (limited to 'src/synth/netlists-gates.ads')
| -rw-r--r-- | src/synth/netlists-gates.ads | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/src/synth/netlists-gates.ads b/src/synth/netlists-gates.ads index 2e1dd0e75..84b8db756 100644 --- a/src/synth/netlists-gates.ads +++ b/src/synth/netlists-gates.ads @@ -103,11 +103,10 @@ package Netlists.Gates is -- Extract a bit or a slice at a constant offset. Id_Extract : constant Module_Id := 44; - -- Edge detectors. These are pseudo gates. - Id_Posedge : constant Module_Id := 50; - Id_Negedge : constant Module_Id := 51; - - subtype Edge_Module_Id is Module_Id range Id_Posedge .. Id_Negedge; + -- 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; -- Constants are gates with only one constant output. There are multiple -- kind of constant gates: for small width, the value is stored as a |