mirror of https://github.com/YosysHQ/yosys.git
Uncomment negative setup times; clamp to zero for connectivity
This commit is contained in:
Eddie Hung
parent
c41c180f68
commit
6c66030dfb
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@ -36,6 +36,9 @@ module IBUF(
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parameter IOSTANDARD = "default";
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parameter IBUF_LOW_PWR = 0;
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assign O = I;
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specify
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(I => O) = 0;
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endspecify
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endmodule
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module IBUFG(
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@ -57,6 +60,9 @@ module OBUF(
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parameter DRIVE = 12;
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parameter SLEW = "SLOW";
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assign O = I;
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specify
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(I => O) = 0;
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endspecify
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endmodule
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module IOBUF (
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@ -72,6 +78,10 @@ module IOBUF (
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parameter SLEW = "SLOW";
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assign IO = T ? 1'bz : I;
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assign O = IO;
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specify
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(I => IO) = 0;
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(IO => O) = 0;
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endspecify
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endmodule
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module OBUFT (
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@ -85,14 +95,20 @@ module OBUFT (
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parameter IOSTANDARD = "DEFAULT";
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parameter SLEW = "SLOW";
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assign O = T ? 1'bz : I;
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specify
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(I => O) = 0;
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endspecify
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endmodule
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module BUFG(
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(* clkbuf_driver *)
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output O,
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input I);
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assign O = I;
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specify
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// https://github.com/SymbiFlow/prjxray-db/blob/4bc6385ab300b1819848371f508185f57b649a0e/artix7/timings/CLK_BUFG_TOP_R.sdf#L11
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(I => O) = 96;
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endspecify
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endmodule
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module BUFGCTRL(
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@ -499,8 +515,8 @@ module FDRE (
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endgenerate
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specify
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
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//$setup(D , posedge C &&& CE && !IS_C_INVERTED , -46); // Negative times not currently supported
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//$setup(D , negedge C &&& CE && IS_C_INVERTED , -46); // Negative times not currently supported
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$setup(D , posedge C &&& CE && !IS_C_INVERTED , /*-46*/ 0); // Negative times not currently supported
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$setup(D , negedge C &&& CE && IS_C_INVERTED , /*-46*/ 0); // Negative times not currently supported
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
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$setup(CE, posedge C &&& !IS_C_INVERTED, 109);
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$setup(CE, negedge C &&& IS_C_INVERTED, 109);
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@ -529,7 +545,7 @@ module FDRE_1 (
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always @(negedge C) if (R) Q <= 1'b0; else if (CE) Q <= D;
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specify
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
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//$setup(D , negedge C &&& CE, -46); // Negative times not currently supported
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$setup(D , negedge C &&& CE, /*-46*/ 0); // Negative times not currently supported
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
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$setup(CE, negedge C, 109);
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274
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@ -564,8 +580,8 @@ module FDSE (
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endgenerate
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specify
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
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//$setup(D , posedge C &&& !IS_C_INVERTED && CE, -46); // Negative times not currently supported
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//$setup(D , negedge C &&& IS_C_INVERTED && CE, -46); // Negative times not currently supported
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$setup(D , posedge C &&& !IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
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$setup(D , negedge C &&& IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
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$setup(CE, posedge C &&& !IS_C_INVERTED, 109);
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$setup(CE, negedge C &&& IS_C_INVERTED, 109);
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@ -594,7 +610,7 @@ module FDSE_1 (
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always @(negedge C) if (S) Q <= 1'b1; else if (CE) Q <= D;
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specify
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
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//$setup(D , negedge C &&& CE, -46); // Negative times not currently supported
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$setup(D , negedge C &&& CE, /*-46*/ 0); // Negative times not currently supported
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
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$setup(CE, negedge C, 109);
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274
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@ -667,8 +683,8 @@ module FDCE (
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endgenerate
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specify
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
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//$setup(D , posedge C &&& !IS_C_INVERTED && CE, -46); // Negative times not currently supported
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//$setup(D , negedge C &&& IS_C_INVERTED && CE, -46); // Negative times not currently supported
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$setup(D , posedge C &&& !IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
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$setup(D , negedge C &&& IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
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$setup(CE , posedge C &&& !IS_C_INVERTED, 109);
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$setup(CE , negedge C &&& IS_C_INVERTED, 109);
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@ -697,7 +713,7 @@ module FDCE_1 (
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always @(negedge C, posedge CLR) if (CLR) Q <= 1'b0; else if (CE) Q <= D;
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specify
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
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//$setup(D , negedge C &&& CE, -46); // Negative times not currently supported
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$setup(D , negedge C &&& CE, /*-46*/ 0); // Negative times not currently supported
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
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$setup(CE , negedge C, 109);
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274
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@ -734,8 +750,8 @@ module FDPE (
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endgenerate
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specify
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
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//$setup(D , posedge C &&& !IS_C_INVERTED && CE, -46); // Negative times not currently supported
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//$setup(D , negedge C &&& IS_C_INVERTED && CE, -46); // Negative times not currently supported
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$setup(D , posedge C &&& !IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
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$setup(D , negedge C &&& IS_C_INVERTED && CE, /*-46*/ 0); // Negative times not currently supported
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
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$setup(CE , posedge C &&& !IS_C_INVERTED, 109);
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$setup(CE , negedge C &&& IS_C_INVERTED, 109);
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@ -764,7 +780,7 @@ module FDPE_1 (
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always @(negedge C, posedge PRE) if (PRE) Q <= 1'b1; else if (CE) Q <= D;
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specify
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L249
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//$setup(D , negedge C &&& CE, -46); // Negative times not currently supported
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$setup(D , negedge C &&& CE, /*-46*/ 0); // Negative times not currently supported
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L248
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$setup(CE , negedge C, 109);
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// https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L274
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