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Diffstat (limited to 'library/tlv/sp_default.vh')
-rwxr-xr-x | library/tlv/sp_default.vh | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/library/tlv/sp_default.vh b/library/tlv/sp_default.vh new file mode 100755 index 00000000..5e74259a --- /dev/null +++ b/library/tlv/sp_default.vh @@ -0,0 +1,66 @@ +`ifndef SP_DEFAULT +`define SP_DEFAULT +/* +Copyright (c) 2015, Steven F. Hoover + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * The name of Steven F. Hoover + may not be used to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +// File included by SandPiper-generated code for the default project configuration. +`include "sandpiper.vh" + + +// Latch macros. Inject 'x in simulation for clk === 'x. + +// A-phase latch. +`ifdef SP_PHYS +`define TLV_LATCH(in, out, clk) \ +always @ (in, clk) begin \ + if (clk === 1'b1) \ + out <= in; \ + else if (clk === 1'bx) \ + out <= 'x; \ +end +`else +`define TLV_LATCH(in, out, clk) always @ (in, clk) if (clk == 1'b1) out <= in; +`endif // SP_PHYS + +// B-phase latch. +`ifdef SP_PHYS +`define TLV_BLATCH(out, in, clk) \ +always @ (in, clk) begin \ + if (!clk === 1'b1) \ + out <= in; \ + else if (!clk === 1'bx) \ + out <= 'x; \ +end +`else +`define TLV_BLATCH(out, in, clk) always @ (in, clk) if (!clk == 1'b1) out <= in; +`endif // SP_PHYS + + + +`endif // SP_DEFAULT + |