diff --git a/src_SSITH_P3/xilinx_ip/hdl/MakeResetA.v b/src_SSITH_P3/xilinx_ip/hdl/MakeResetA.v new file mode 100644 index 0000000..42c075a --- /dev/null +++ b/src_SSITH_P3/xilinx_ip/hdl/MakeResetA.v @@ -0,0 +1,92 @@ + +// Copyright (c) 2000-2012 Bluespec, Inc. + +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: + +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. + +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. +// +// $Revision$ +// $Date$ + +`ifdef BSV_ASSIGNMENT_DELAY +`else + `define BSV_ASSIGNMENT_DELAY +`endif + +`ifdef BSV_POSITIVE_RESET + `define BSV_RESET_VALUE 1'b1 + `define BSV_RESET_EDGE posedge +`else + `define BSV_RESET_VALUE 1'b0 + `define BSV_RESET_EDGE negedge +`endif + + + +module MakeResetA ( + CLK, + RST, + ASSERT_IN, + ASSERT_OUT, + + DST_CLK, + OUT_RST + ); + + parameter RSTDELAY = 2 ; // Width of reset shift reg + parameter init = 1 ; + + input CLK ; + input RST ; + input ASSERT_IN ; + output ASSERT_OUT ; + + input DST_CLK ; + output OUT_RST ; + + reg rst ; + wire OUT_RST ; + + assign ASSERT_OUT = rst == `BSV_RESET_VALUE ; + + SyncResetA #(RSTDELAY) rstSync (.CLK(DST_CLK), + .IN_RST(rst), + .OUT_RST(OUT_RST)); + + always@(posedge CLK or `BSV_RESET_EDGE RST) begin + if (RST == `BSV_RESET_VALUE) + rst <= `BSV_ASSIGNMENT_DELAY init ? ~ `BSV_RESET_VALUE : `BSV_RESET_VALUE ; + else + begin + if (ASSERT_IN) + rst <= `BSV_ASSIGNMENT_DELAY `BSV_RESET_VALUE; + else // if (rst == 1'b0) + rst <= `BSV_ASSIGNMENT_DELAY ~ `BSV_RESET_VALUE; + end // else: !if(RST == `BSV_RESET_VALUE) + end // always@ (posedge CLK or `BSV_RESET_EDGE RST) + +`ifdef BSV_NO_INITIAL_BLOCKS +`else // not BSV_NO_INITIAL_BLOCKS + // synopsys translate_off + initial begin + #0 ; + rst = ~ `BSV_RESET_VALUE ; + end + // synopsys translate_on +`endif // BSV_NO_INITIAL_BLOCKS + +endmodule // MakeResetA diff --git a/src_SSITH_P3/xilinx_ip/hdl/ResetEither.v b/src_SSITH_P3/xilinx_ip/hdl/ResetEither.v new file mode 100644 index 0000000..14443ee --- /dev/null +++ b/src_SSITH_P3/xilinx_ip/hdl/ResetEither.v @@ -0,0 +1,54 @@ + +// Copyright (c) 2000-2009 Bluespec, Inc. + +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: + +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. + +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. +// +// $Revision$ +// $Date$ + +`ifdef BSV_ASSIGNMENT_DELAY +`else +`define BSV_ASSIGNMENT_DELAY +`endif + +`ifdef BSV_POSITIVE_RESET + `define BSV_RESET_VALUE 1'b1 + `define BSV_RESET_EDGE posedge +`else + `define BSV_RESET_VALUE 1'b0 + `define BSV_RESET_EDGE negedge +`endif + + + +// A separate module which instantiates a simple reset combining primitive. +// The primitive is simply an AND gate for negative resets, an OR gate for positive resets. +module ResetEither(A_RST, + B_RST, + RST_OUT + ) ; + + input A_RST; + input B_RST; + + output RST_OUT; + + assign RST_OUT = ((A_RST == `BSV_RESET_VALUE) || (B_RST == `BSV_RESET_VALUE)) ? `BSV_RESET_VALUE : ~ `BSV_RESET_VALUE; + +endmodule