diff --git a/wally-pipelined/src/fpu/FPregfile.sv~ b/wally-pipelined/src/fpu/FPregfile.sv~ deleted file mode 100644 index 73b62a57..00000000 --- a/wally-pipelined/src/fpu/FPregfile.sv~ +++ /dev/null @@ -1,52 +0,0 @@ -/////////////////////////////////////////// -// regfile.sv -// -// Written: David_Harris@hmc.edu 9 January 2021 -// Modified: -// -// Purpose: 3-port register file -// -// A component of the Wally configurable RISC-V project. -// -// Copyright (C) 2021 Harvey Mudd College & Oklahoma State University -// -// 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. -/////////////////////////////////////////// - -`include "wally-config.vh" - -module regfile ( - input logic clk, reset, - input logic we3, - input logic [ 4:0] a1, a2, a3, - input logic [`XLEN-1:0] wd3, - output logic [`XLEN-1:0] rd1, rd2); - - logic [`XLEN-1:0] rf[31:1]; - integer i; - - // three ported register file - // read two ports combinationally (A1/RD1, A2/RD2) - // write third port on rising edge of clock (A3/WD3/WE3) - // write occurs on falling edge of clock - // register 0 hardwired to 0 - - // reset is intended for simulation only, not synthesis - - always_ff @(negedge clk or posedge reset) - if (reset) for(i=1; i<32; i++) rf[i] <= 0; - else if (we3) rf[a3] <= wd3; - - assign #2 rd1 = (a1 != 0) ? rf[a1] : 0; - assign #2 rd2 = (a2 != 0) ? rf[a2] : 0; -endmodule