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// ============================================================================
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// __
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// \\__/ o\ (C) 2015 Robert Finch, Stratford
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// \ __ / All rights reserved.
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// \/_// robfinch<remove>@finitron.ca
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// ||
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//
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// This source file is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This source file is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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//
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// Thor SuperScaler
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// ALU
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//
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// ============================================================================
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//
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`include "Thor_defines.v"
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module Thor_P(fn, ra, rb, rt, pregs_i, pregs_o);
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parameter DBW=64;
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input [5:0] fn;
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input [5:0] ra;
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input [5:0] rb;
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input [5:0] rt;
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input [DBW-1:0] pregs_i;
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output reg [DBW-1:0] pregs_o;
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always @*
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begin
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pregs_o = pregs_i;
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case (fn)
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`PAND: pregs_o[rt] = pregs_i[ra] & pregs_i[rb];
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`POR: pregs_o[rt] = pregs_i[ra] | pregs_i[rb];
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`PEOR: pregs_o[rt] = pregs_i[ra] ^ pregs_i[rb];
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`PNAND: pregs_o[rt] = ~(pregs_i[ra] & pregs_i[rb]);
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`PNOR: pregs_o[rt] = ~(pregs_i[ra] | pregs_i[rb]);
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`PENOR: pregs_o[rt] = ~(pregs_i[ra] ^ pregs_i[rb]);
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`PANDC: pregs_o[rt] = pregs_i[ra] & ~pregs_i[rb];
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`PORC: pregs_o[rt] = pregs_i[ra] | ~pregs_i[rb];
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default: pregs_o = pregs_i;
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endcase
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end
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endmodule
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