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Uncomment negative setup times; clamp to zero for connectivity

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This commit is contained in:
Eddie Hung 2020-02-18 17:59:33 -08:00
parent 9c640bfdd2
commit b96866c456
1 changed files with 29 additions and 13 deletions
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42
techlibs/xilinx/cells_sim.v
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@ -36,6 +36,9 @@ module IBUF(
parameter IOSTANDARD = "default"; parameter IOSTANDARD = "default";
parameter IBUF_LOW_PWR = 0; parameter IBUF_LOW_PWR = 0;
assign O = I; assign O = I;
specify
(I => O) = 0;
endspecify
endmodule endmodule
module IBUFG( module IBUFG(
@ -57,6 +60,9 @@ module OBUF(
parameter DRIVE = 12; parameter DRIVE = 12;
parameter SLEW = "SLOW"; parameter SLEW = "SLOW";
assign O = I; assign O = I;
specify
(I => O) = 0;
endspecify
endmodule endmodule
module IOBUF ( module IOBUF (
@ -72,6 +78,10 @@ module IOBUF (
parameter SLEW = "SLOW"; parameter SLEW = "SLOW";
assign IO = T ? 1'bz : I; assign IO = T ? 1'bz : I;
assign O = IO; assign O = IO;
specify
(I => IO) = 0;
(IO => O) = 0;
endspecify
endmodule endmodule
module OBUFT ( module OBUFT (
@ -85,14 +95,20 @@ module OBUFT (
parameter IOSTANDARD = "DEFAULT"; parameter IOSTANDARD = "DEFAULT";
parameter SLEW = "SLOW"; parameter SLEW = "SLOW";
assign O = T ? 1'bz : I; assign O = T ? 1'bz : I;
specify
(I => O) = 0;
endspecify
endmodule endmodule
module BUFG( module BUFG(
(* clkbuf_driver *) (* clkbuf_driver *)
output O, output O,
input I); input I);
assign O = I; assign O = I;
specify
// https://github.com/SymbiFlow/prjxray-db/blob/4bc6385ab300b1819848371f508185f57b649a0e/artix7/timings/CLK_BUFG_TOP_R.sdf#L11
(I => O) = 96;
endspecify
endmodule endmodule
module BUFGCTRL( module BUFGCTRL(
@ -499,8 +515,8 @@ module FDRE (
endgenerate endgenerate
specify specify
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
//$setup(D , posedge C &&& CE && !IS_C_INVERTED , -46); // Negative times not currently supported $setup(D , posedge C &&& CE && !IS_C_INVERTED , /*-46*/ 0); // Negative times not currently supported
//$setup(D , negedge C &&& CE && IS_C_INVERTED , -46); // Negative times not currently supported $setup(D , negedge C &&& CE && IS_C_INVERTED , /*-46*/ 0); // Negative times not currently supported
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
$setup(CE, posedge C &&& !IS_C_INVERTED, 109); $setup(CE, posedge C &&& !IS_C_INVERTED, 109);
$setup(CE, negedge C &&& IS_C_INVERTED, 109); $setup(CE, negedge C &&& IS_C_INVERTED, 109);
@ -529,7 +545,7 @@ module FDRE_1 (
always @(negedge C) if (R) Q <= 1'b0; else if (CE) Q <= D; always @(negedge C) if (R) Q <= 1'b0; else if (CE) Q <= D;
specify specify
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
//$setup(D , negedge C &&& CE, -46); // Negative times not currently supported $setup(D , negedge C &&& CE, /*-46*/ 0); // Negative times not currently supported
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
$setup(CE, negedge C, 109); $setup(CE, negedge C, 109);
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274
@ -564,8 +580,8 @@ module FDSE (
endgenerate endgenerate
specify specify
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
//$setup(D , posedge C &&& !IS_C_INVERTED && CE, -46); // Negative times not currently supported $setup(D , posedge C &&& !IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
//$setup(D , negedge C &&& IS_C_INVERTED && CE, -46); // Negative times not currently supported $setup(D , negedge C &&& IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
$setup(CE, posedge C &&& !IS_C_INVERTED, 109); $setup(CE, posedge C &&& !IS_C_INVERTED, 109);
$setup(CE, negedge C &&& IS_C_INVERTED, 109); $setup(CE, negedge C &&& IS_C_INVERTED, 109);
@ -594,7 +610,7 @@ module FDSE_1 (
always @(negedge C) if (S) Q <= 1'b1; else if (CE) Q <= D; always @(negedge C) if (S) Q <= 1'b1; else if (CE) Q <= D;
specify specify
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
//$setup(D , negedge C &&& CE, -46); // Negative times not currently supported $setup(D , negedge C &&& CE, /*-46*/ 0); // Negative times not currently supported
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
$setup(CE, negedge C, 109); $setup(CE, negedge C, 109);
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274
@ -667,8 +683,8 @@ module FDCE (
endgenerate endgenerate
specify specify
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
//$setup(D , posedge C &&& !IS_C_INVERTED && CE, -46); // Negative times not currently supported $setup(D , posedge C &&& !IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
//$setup(D , negedge C &&& IS_C_INVERTED && CE, -46); // Negative times not currently supported $setup(D , negedge C &&& IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
$setup(CE , posedge C &&& !IS_C_INVERTED, 109); $setup(CE , posedge C &&& !IS_C_INVERTED, 109);
$setup(CE , negedge C &&& IS_C_INVERTED, 109); $setup(CE , negedge C &&& IS_C_INVERTED, 109);
@ -697,7 +713,7 @@ module FDCE_1 (
always @(negedge C, posedge CLR) if (CLR) Q <= 1'b0; else if (CE) Q <= D; always @(negedge C, posedge CLR) if (CLR) Q <= 1'b0; else if (CE) Q <= D;
specify specify
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
//$setup(D , negedge C &&& CE, -46); // Negative times not currently supported $setup(D , negedge C &&& CE, /*-46*/ 0); // Negative times not currently supported
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
$setup(CE , negedge C, 109); $setup(CE , negedge C, 109);
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274
@ -734,8 +750,8 @@ module FDPE (
endgenerate endgenerate
specify specify
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
//$setup(D , posedge C &&& !IS_C_INVERTED && CE, -46); // Negative times not currently supported $setup(D , posedge C &&& !IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
//$setup(D , negedge C &&& IS_C_INVERTED && CE, -46); // Negative times not currently supported $setup(D , negedge C &&& IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
$setup(CE , posedge C &&& !IS_C_INVERTED, 109); $setup(CE , posedge C &&& !IS_C_INVERTED, 109);
$setup(CE , negedge C &&& IS_C_INVERTED, 109); $setup(CE , negedge C &&& IS_C_INVERTED, 109);
@ -764,7 +780,7 @@ module FDPE_1 (
always @(negedge C, posedge PRE) if (PRE) Q <= 1'b1; else if (CE) Q <= D; always @(negedge C, posedge PRE) if (PRE) Q <= 1'b1; else if (CE) Q <= D;
specify specify
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
//$setup(D , negedge C &&& CE, -46); // Negative times not currently supported $setup(D , negedge C &&& CE, /*-46*/ 0); // Negative times not currently supported
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
$setup(CE , negedge C, 109); $setup(CE , negedge C, 109);
// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274 // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274