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/* Copyright 2017 Jack Humbert
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include "process_unicode_common.h"

extern const uint32_t PROGMEM unicode_map[];

uint16_t unicodemap_index(uint16_t keycode);
bool     process_unicodemap(uint16_t keycode, keyrecord_t *record);
OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * */ // NOTE: This is still WIP. (* techmap_celltype = "$alu" *) module _80_altera_a10gx_alu (A, B, CI, BI, X, Y, CO); parameter A_SIGNED = 0; parameter B_SIGNED = 0; parameter A_WIDTH = 1; parameter B_WIDTH = 1; parameter Y_WIDTH = 1; input [A_WIDTH-1:0] A; input [B_WIDTH-1:0] B; output [Y_WIDTH-1:0] X, Y; input CI, BI; //output [Y_WIDTH-1:0] CO; output CO; wire _TECHMAP_FAIL_ = Y_WIDTH <= 4; wire [Y_WIDTH-1:0] A_buf, B_buf; \$pos #(.A_SIGNED(A_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(Y_WIDTH)) A_conv (.A(A), .Y(A_buf)); \$pos #(.A_SIGNED(B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) B_conv (.A(B), .Y(B_buf)); wire [Y_WIDTH-1:0] AA = A_buf; wire [Y_WIDTH-1:0] BB = BI ? ~B_buf : B_buf; //wire [Y_WIDTH:0] C = {CO, CI}; wire [Y_WIDTH+1:0] COx; wire [Y_WIDTH+1:0] C = {COx, CI}; /* Start implementation */ (* keep *) cyclone10lp_lcell_comb #(.lut_mask(16'b0000_0000_1010_1010), .sum_lutc_input("cin")) carry_start (.cout(COx[0]), .dataa(C[0]), .datab(1'b1), .datac(1'b1), .datad(1'b1)); genvar i; generate for (i = 0; i < Y_WIDTH; i = i + 1) begin: slice if(i==Y_WIDTH-1) begin (* keep *) cyclone10lp_lcell_comb #(.lut_mask(16'b1111_0000_1110_0000), .sum_lutc_input("cin")) carry_end (.combout(COx[Y_WIDTH]), .dataa(1'b1), .datab(1'b1), .datac(1'b1), .datad(1'b1), .cin(C[Y_WIDTH])); assign CO = COx[Y_WIDTH]; end else cyclone10lp_lcell_comb #(.lut_mask(16'b1001_0110_1110_1000), .sum_lutc_input("cin")) arith_cell (.combout(Y[i]), .cout(COx[i+1]), .dataa(AA[i]), .datab(BB[i]), .datac(1'b1), .datad(1'b1), .cin(C[i+1])); end: slice endgenerate /* End implementation */ assign X = AA ^ BB; endmodule