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Diffstat (limited to 'library/tlv/sandpiper.vh')
| -rwxr-xr-x | library/tlv/sandpiper.vh | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/library/tlv/sandpiper.vh b/library/tlv/sandpiper.vh new file mode 100755 index 00000000..ccba8b0e --- /dev/null +++ b/library/tlv/sandpiper.vh @@ -0,0 +1,72 @@ +/* +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. +*/ + +// Project-independent SandPiper header file. + +`ifndef SANDPIPER_VH +`define SANDPIPER_VH + + +// Note, these have no SP prefix, so collisions are possible. + + +`ifdef WHEN + // Make sure user definition does not collide. + !!!ERROR: WHEN macro already defined +`else + `ifdef SP_PHYS + // Phys compilation disabled X-injection. + `define WHEN(valid_sig) + `else + // Inject X. + `define WHEN(valid_sig) !valid_sig ? 'x : + `endif +`endif + + +// SandPiper does not generate set/reset flops. Reset is implemented as combinational +// logic, and it is up to synthesis to infer set/reset flops when possible. +//`ifdef RESET +// // Make sure user definition does not collide. +// !!!ERROR: RESET macro already defined +//`else +// `define RESET(i, reset) ((reset) ? '0 : i) +//`endif +// +//`ifdef SET +// // Make sure user definition does not collide. +// !!!ERROR: SET macro already defined +//`else +// `define SET(i, set) ((set) ? '1 : i) +//`endif + +// Since SandPiper required use of all signals, this is useful to create a +// bogus use and keep SandPiper happy when a signal, by intent, has no uses. +`define BOGUS_USE(ignore) + +`endif // SANDPIPER_VH + |