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Merge pull request #3977 from YosysHQ/lofty/gowin-dff

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gowin: fix abc9 attributes and specify blocks
This commit is contained in:
Lofty
2023-10-04 05:18:59 +01:00
committed by GitHub
parent f00d6f3c12 294844137b
commit 3e02b63ee1
1 changed files with 15 additions and 15 deletions
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30
techlibs/gowin/cells_sim.v
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@@ -197,7 +197,7 @@ module DFFE (output reg Q, input D, CLK, CE);
end
endmodule // DFFE (positive clock edge; clock enable)
(* abc9_box, lib_whitebox *)
(* abc9_flop, lib_whitebox *)
module DFFS (output reg Q, input D, CLK, SET);
parameter [0:0] INIT = 1'b1;
initial Q = INIT;
@@ -216,7 +216,7 @@ module DFFS (output reg Q, input D, CLK, SET);
end
endmodule // DFFS (positive clock edge; synchronous set)
(* abc9_box, lib_whitebox *)
(* abc9_flop, lib_whitebox *)
module DFFSE (output reg Q, input D, CLK, CE, SET);
parameter [0:0] INIT = 1'b1;
initial Q = INIT;
@@ -282,7 +282,7 @@ module DFFP (output reg Q, input D, CLK, PRESET);
specify
(posedge CLK => (Q : D)) = (480, 660);
(posedge PRESET => (Q : 1'b1)) = (1800, 2679);
(PRESET => Q) = (1800, 2679);
$setup(D, posedge CLK, 576);
endspecify
@@ -301,7 +301,7 @@ module DFFPE (output reg Q, input D, CLK, CE, PRESET);
specify
if (CE) (posedge CLK => (Q : D)) = (480, 660);
(posedge PRESET => (Q : 1'b1)) = (1800, 2679);
(PRESET => Q) = (1800, 2679);
$setup(D, posedge CLK &&& CE, 576);
$setup(CE, posedge CLK, 63);
endspecify
@@ -321,7 +321,7 @@ module DFFC (output reg Q, input D, CLK, CLEAR);
specify
(posedge CLK => (Q : D)) = (480, 660);
(posedge CLEAR => (Q : 1'b0)) = (1800, 2679);
(CLEAR => Q) = (1800, 2679);
$setup(D, posedge CLK, 576);
endspecify
@@ -340,7 +340,7 @@ module DFFCE (output reg Q, input D, CLK, CE, CLEAR);
specify
if (CE) (posedge CLK => (Q : D)) = (480, 660);
(posedge CLEAR => (Q : 1'b0)) = (1800, 2679);
(CLEAR => Q) = (1800, 2679);
$setup(D, posedge CLK &&& CE, 576);
$setup(CE, posedge CLK, 63);
endspecify
@@ -384,7 +384,7 @@ module DFFNE (output reg Q, input D, CLK, CE);
end
endmodule // DFFNE (negative clock edge; clock enable)
(* abc9_box, lib_whitebox *)
(* abc9_flop, lib_whitebox *)
module DFFNS (output reg Q, input D, CLK, SET);
parameter [0:0] INIT = 1'b1;
initial Q = INIT;
@@ -403,7 +403,7 @@ module DFFNS (output reg Q, input D, CLK, SET);
end
endmodule // DFFNS (negative clock edge; synchronous set)
(* abc9_box, lib_whitebox *)
(* abc9_flop, lib_whitebox *)
module DFFNSE (output reg Q, input D, CLK, CE, SET);
parameter [0:0] INIT = 1'b1;
initial Q = INIT;
@@ -469,7 +469,7 @@ module DFFNP (output reg Q, input D, CLK, PRESET);
specify
(negedge CLK => (Q : D)) = (480, 660);
(posedge PRESET => (Q : 1'b1)) = (1800, 2679);
(PRESET => Q) = (1800, 2679);
$setup(D, negedge CLK, 576);
endspecify
@@ -488,7 +488,7 @@ module DFFNPE (output reg Q, input D, CLK, CE, PRESET);
specify
if (CE) (negedge CLK => (Q : D)) = (480, 660);
(posedge PRESET => (Q : 1'b1)) = (1800, 2679);
(PRESET => Q) = (1800, 2679);
$setup(D, negedge CLK &&& CE, 576);
$setup(CE, negedge CLK, 63);
endspecify
@@ -508,7 +508,7 @@ module DFFNC (output reg Q, input D, CLK, CLEAR);
specify
(negedge CLK => (Q : D)) = (480, 660);
(posedge CLEAR => (Q : 1'b0)) = (1800, 2679);
(CLEAR => Q) = (1800, 2679);
$setup(D, negedge CLK, 576);
endspecify
@@ -527,7 +527,7 @@ module DFFNCE (output reg Q, input D, CLK, CE, CLEAR);
specify
if (CE) (negedge CLK => (Q : D)) = (480, 660);
(posedge CLEAR => (Q : 1'b0)) = (1800, 2679);
(CLEAR => Q) = (1800, 2679);
$setup(D, negedge CLK &&& CE, 576);
$setup(CE, negedge CLK, 63);
endspecify
@@ -957,7 +957,7 @@ end
endmodule
(* abc9_flop, lib_whitebox *)
module RAM16S1 (DO, DI, AD, WRE, CLK);
parameter INIT_0 = 16'h0000;
@@ -992,7 +992,7 @@ end
endmodule
(* abc9_flop, lib_whitebox *)
module RAM16S2 (DO, DI, AD, WRE, CLK);
parameter INIT_0 = 16'h0000;
@@ -1031,7 +1031,7 @@ end
endmodule
(* abc9_flop, lib_whitebox *)
module RAM16S4 (DO, DI, AD, WRE, CLK);
parameter INIT_0 = 16'h0000;