aboutsummaryrefslogtreecommitdiffstats
path: root/techlibs/ice40/cells_sim.v
diff options
context:
space:
mode:
Diffstat (limited to 'techlibs/ice40/cells_sim.v')
-rw-r--r--techlibs/ice40/cells_sim.v166
1 files changed, 166 insertions, 0 deletions
diff --git a/techlibs/ice40/cells_sim.v b/techlibs/ice40/cells_sim.v
index 5d107989d..ad572c877 100644
--- a/techlibs/ice40/cells_sim.v
+++ b/techlibs/ice40/cells_sim.v
@@ -245,6 +245,7 @@ endmodule
// Positive Edge SiliconBlue FF Cells
+(* abc9_flop, lib_whitebox *)
module SB_DFF (
output `SB_DFF_REG,
input C, D
@@ -280,6 +281,7 @@ module SB_DFF (
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFE (
output `SB_DFF_REG,
input C, E, D
@@ -322,6 +324,7 @@ module SB_DFFE (
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFSR (
output `SB_DFF_REG,
input C, R, D
@@ -369,6 +372,7 @@ module SB_DFFSR (
`endif
endmodule
+(* abc9_box, lib_whitebox *)
module SB_DFFR (
output `SB_DFF_REG,
input C, R, D
@@ -386,7 +390,13 @@ module SB_DFFR (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L63
$setup(negedge R, posedge C, 160);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L91
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 599;
+`else
+ if (R) (R => Q) = 599; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L90
if (!R) (posedge C => (Q : D)) = 540;
endspecify
@@ -399,7 +409,13 @@ module SB_DFFR (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L63
$setup(negedge R, posedge C, 235);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L91
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 883;
+`else
+ if (R) (R => Q) = 883; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L90
if (!R) (posedge C => (Q : D)) = 796;
endspecify
@@ -412,13 +428,20 @@ module SB_DFFR (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L75
$setup(negedge R, posedge C, 424);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L103
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 1589;
+`else
+ if (R) (R => Q) = 1589; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L102
if (!R) (posedge C => (Q : D)) = 1391;
endspecify
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFSS (
output `SB_DFF_REG,
input C, S, D
@@ -466,6 +489,7 @@ module SB_DFFSS (
`endif
endmodule
+(* abc9_box, lib_whitebox *)
module SB_DFFS (
output `SB_DFF_REG,
input C, S, D
@@ -483,7 +507,13 @@ module SB_DFFS (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L63
$setup(negedge S, posedge C, 160);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L91
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 599;
+`else
+ if (S) (S => Q) = 599; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L90
if (!S) (posedge C => (Q : D)) = 540;
endspecify
@@ -496,7 +526,13 @@ module SB_DFFS (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L63
$setup(negedge S, posedge C, 235);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L91
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 883;
+`else
+ if (S) (S => Q) = 883; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L90
if (!S) (posedge C => (Q : D)) = 796;
endspecify
@@ -509,13 +545,20 @@ module SB_DFFS (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L75
$setup(negedge S, posedge C, 424);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L103
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 1589;
+`else
+ if (S) (S => Q) = 1589; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L102
if (!S) (posedge C => (Q : D)) = 1391;
endspecify
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFESR (
output `SB_DFF_REG,
input C, E, R, D
@@ -571,6 +614,7 @@ module SB_DFFESR (
`endif
endmodule
+(* abc9_box, lib_whitebox *)
module SB_DFFER (
output `SB_DFF_REG,
input C, E, R, D
@@ -590,7 +634,13 @@ module SB_DFFER (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L63
$setup(negedge R, posedge C, 160);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L91
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 599;
+`else
+ if (R) (R => Q) = 599; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L90
if (E && !R) (posedge C => (Q : D)) = 540;
endspecify
@@ -605,7 +655,13 @@ module SB_DFFER (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L63
$setup(negedge R, posedge C, 235);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L91
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 883;
+`else
+ if (R) (R => Q) = 883; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L90
if (E && !R) (posedge C => (Q : D)) = 796;
endspecify
@@ -620,13 +676,20 @@ module SB_DFFER (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L75
$setup(negedge R, posedge C, 424);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L103
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 1589;
+`else
+ if (R) (R => Q) = 1589; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L102
if (E && !R) (posedge C => (Q : D)) = 1391;
endspecify
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFESS (
output `SB_DFF_REG,
input C, E, S, D
@@ -682,6 +745,7 @@ module SB_DFFESS (
`endif
endmodule
+(* abc9_box, lib_whitebox *)
module SB_DFFES (
output `SB_DFF_REG,
input C, E, S, D
@@ -701,7 +765,13 @@ module SB_DFFES (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L63
$setup(posedge S, posedge C, 160);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L91
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 599;
+`else
+ if (S) (S => Q) = 599; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L90
if (E && !S) (posedge C => (Q : D)) = 540;
endspecify
@@ -716,7 +786,13 @@ module SB_DFFES (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L63
$setup(posedge S, posedge C, 235);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L91
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 883;
+`else
+ if (S) (S => Q) = 883; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L90
if (E && !S) (posedge C => (Q : D)) = 796;
endspecify
@@ -731,7 +807,13 @@ module SB_DFFES (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L75
$setup(posedge S, posedge C, 424);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L103
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 1589;
+`else
+ if (S) (S => Q) = 1589; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L102
if (E && !S) (posedge C => (Q : D)) = 1391;
endspecify
@@ -740,6 +822,7 @@ endmodule
// Negative Edge SiliconBlue FF Cells
+(* abc9_flop, lib_whitebox *)
module SB_DFFN (
output `SB_DFF_REG,
input C, D
@@ -775,6 +858,7 @@ module SB_DFFN (
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFNE (
output `SB_DFF_REG,
input C, E, D
@@ -817,6 +901,7 @@ module SB_DFFNE (
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFNSR (
output `SB_DFF_REG,
input C, R, D
@@ -864,6 +949,7 @@ module SB_DFFNSR (
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFNR (
output `SB_DFF_REG,
input C, R, D
@@ -881,7 +967,13 @@ module SB_DFFNR (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L63
$setup(negedge R, negedge C, 160);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L91
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 599;
+`else
+ if (R) (R => Q) = 599; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L90
if (!R) (negedge C => (Q : D)) = 540;
endspecify
@@ -894,7 +986,13 @@ module SB_DFFNR (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L63
$setup(negedge R, negedge C, 235);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L91
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 883;
+`else
+ if (R) (R => Q) = 883; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L90
if (!R) (negedge C => (Q : D)) = 796;
endspecify
@@ -907,13 +1005,20 @@ module SB_DFFNR (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L75
$setup(negedge R, negedge C, 424);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L103
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 1589;
+`else
+ if (R) (R => Q) = 1589; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L102
if (!R) (negedge C => (Q : D)) = 1391;
endspecify
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFNSS (
output `SB_DFF_REG,
input C, S, D
@@ -961,6 +1066,7 @@ module SB_DFFNSS (
`endif
endmodule
+(* abc9_box, lib_whitebox *)
module SB_DFFNS (
output `SB_DFF_REG,
input C, S, D
@@ -978,7 +1084,13 @@ module SB_DFFNS (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L63
$setup(negedge S, negedge C, 160);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L91
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 599;
+`else
+ if (S) (S => Q) = 599; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L90
if (!S) (negedge C => (Q : D)) = 540;
endspecify
@@ -991,7 +1103,13 @@ module SB_DFFNS (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L63
$setup(negedge S, negedge C, 235);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L91
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 883;
+`else
+ if (S) (S => Q) = 883; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L90
if (!S) (negedge C => (Q : D)) = 796;
endspecify
@@ -1004,13 +1122,20 @@ module SB_DFFNS (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L75
$setup(negedge S, negedge C, 424);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L103
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 1589;
+`else
+ if (S) (S => Q) = 1589; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L102
if (!S) (negedge C => (Q : D)) = 1391;
endspecify
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFNESR (
output `SB_DFF_REG,
input C, E, R, D
@@ -1066,6 +1191,7 @@ module SB_DFFNESR (
`endif
endmodule
+(* abc9_box, lib_whitebox *)
module SB_DFFNER (
output `SB_DFF_REG,
input C, E, R, D
@@ -1085,7 +1211,13 @@ module SB_DFFNER (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L63
$setup(R, negedge C, 2160);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L91
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 599;
+`else
+ if (R) (R => Q) = 599; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L90
if (E && !R) (negedge C => (Q : D)) = 540;
endspecify
@@ -1100,7 +1232,13 @@ module SB_DFFNER (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L63
$setup(R, negedge C, 235);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L91
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 883;
+`else
+ if (R) (R => Q) = 883; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L90
if (E && !R) (negedge C => (Q : D)) = 796;
endspecify
@@ -1115,13 +1253,20 @@ module SB_DFFNER (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L75
$setup(negedge R, negedge C, 424);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L103
+`ifndef YOSYS
(posedge R => (Q : 1'b0)) = 1589;
+`else
+ if (R) (R => Q) = 1589; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L102
if (E && !R) (negedge C => (Q : D)) = 1391;
endspecify
`endif
endmodule
+(* abc9_flop, lib_whitebox *)
module SB_DFFNESS (
output `SB_DFF_REG,
input C, E, S, D
@@ -1177,6 +1322,7 @@ module SB_DFFNESS (
`endif
endmodule
+(* abc9_box, lib_whitebox *)
module SB_DFFNES (
output `SB_DFF_REG,
input C, E, S, D
@@ -1196,7 +1342,14 @@ module SB_DFFNES (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L63
$setup(negedge S, negedge C, 160);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L91
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 599;
+`else
+ if (S) (S => Q) = 599; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
+
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L90
if (E && !S) (negedge C => (Q : D)) = 540;
endspecify
@@ -1211,7 +1364,13 @@ module SB_DFFNES (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L63
$setup(negedge S, negedge C, 235);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L91
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 883;
+`else
+ if (S) (S => Q) = 883; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L90
if (E && !S) (negedge C => (Q : D)) = 796;
endspecify
@@ -1226,7 +1385,13 @@ module SB_DFFNES (
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L75
$setup(negedge S, negedge C, 424);
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L103
+`ifndef YOSYS
(posedge S => (Q : 1'b1)) = 1589;
+`else
+ if (S) (S => Q) = 1589; // Technically, this should be an edge sensitive path
+ // but for facilitating a bypass box, let's pretend it's
+ // a simple path
+`endif
// https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L102
if (E && !S) (negedge C => (Q : D)) = 1391;
endspecify
@@ -2723,6 +2888,7 @@ module SB_IO_OD (
`endif
endmodule
+//(* abc9_box, lib_whitebox *) // TODO
module SB_MAC16 (
input CLK, CE,
input [15:0] C, A, B, D,
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-26 10:32:26 +0000