| // Copyright lowRISC contributors. |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| // |
| // SECDED Encoder generated by |
| // util/design/secded_gen.py -s 1592631616 from util/design/data/secded_cfg.hjson |
| |
| package prim_secded_pkg; |
| |
| typedef struct packed { |
| logic [15:0] data; |
| logic [5:0] syndrome; |
| logic [1:0] err; |
| } secded_22_16_t; |
| |
| typedef struct packed { |
| logic [21:0] data; |
| logic [5:0] syndrome; |
| logic [1:0] err; |
| } secded_28_22_t; |
| |
| typedef struct packed { |
| logic [31:0] data; |
| logic [6:0] syndrome; |
| logic [1:0] err; |
| } secded_39_32_t; |
| |
| typedef struct packed { |
| logic [56:0] data; |
| logic [6:0] syndrome; |
| logic [1:0] err; |
| } secded_64_57_t; |
| |
| typedef struct packed { |
| logic [63:0] data; |
| logic [7:0] syndrome; |
| logic [1:0] err; |
| } secded_72_64_t; |
| |
| typedef struct packed { |
| logic [15:0] data; |
| logic [5:0] syndrome; |
| logic [1:0] err; |
| } secded_hamming_22_16_t; |
| |
| typedef struct packed { |
| logic [31:0] data; |
| logic [6:0] syndrome; |
| logic [1:0] err; |
| } secded_hamming_39_32_t; |
| |
| typedef struct packed { |
| logic [63:0] data; |
| logic [7:0] syndrome; |
| logic [1:0] err; |
| } secded_hamming_72_64_t; |
| |
| function automatic logic [21:0] prim_secded_22_16_enc (logic [15:0] in); |
| logic [21:0] out; |
| out = 22'(in); |
| out[16] = ^(out & 22'h009F41); |
| out[17] = ^(out & 22'h007A34); |
| out[18] = ^(out & 22'h0029CD); |
| out[19] = ^(out & 22'h00C0AF); |
| out[20] = ^(out & 22'h0074D2); |
| out[21] = ^(out & 22'h00873A); |
| return out; |
| endfunction |
| |
| function automatic secded_22_16_t prim_secded_22_16_dec (logic [21:0] in); |
| logic [15:0] d_o; |
| logic [5:0] syndrome_o; |
| logic [1:0] err_o; |
| |
| secded_22_16_t dec; |
| |
| logic single_error; |
| |
| // Syndrome calculation |
| syndrome_o[0] = ^(in & 22'h019F41); |
| syndrome_o[1] = ^(in & 22'h027A34); |
| syndrome_o[2] = ^(in & 22'h0429CD); |
| syndrome_o[3] = ^(in & 22'h08C0AF); |
| syndrome_o[4] = ^(in & 22'h1074D2); |
| syndrome_o[5] = ^(in & 22'h20873A); |
| |
| // Corrected output calculation |
| d_o[0] = (syndrome_o == 6'hd) ^ in[0]; |
| d_o[1] = (syndrome_o == 6'h38) ^ in[1]; |
| d_o[2] = (syndrome_o == 6'he) ^ in[2]; |
| d_o[3] = (syndrome_o == 6'h2c) ^ in[3]; |
| d_o[4] = (syndrome_o == 6'h32) ^ in[4]; |
| d_o[5] = (syndrome_o == 6'h2a) ^ in[5]; |
| d_o[6] = (syndrome_o == 6'h15) ^ in[6]; |
| d_o[7] = (syndrome_o == 6'h1c) ^ in[7]; |
| d_o[8] = (syndrome_o == 6'h25) ^ in[8]; |
| d_o[9] = (syndrome_o == 6'h23) ^ in[9]; |
| d_o[10] = (syndrome_o == 6'h31) ^ in[10]; |
| d_o[11] = (syndrome_o == 6'h7) ^ in[11]; |
| d_o[12] = (syndrome_o == 6'h13) ^ in[12]; |
| d_o[13] = (syndrome_o == 6'h16) ^ in[13]; |
| d_o[14] = (syndrome_o == 6'h1a) ^ in[14]; |
| d_o[15] = (syndrome_o == 6'h29) ^ in[15]; |
| |
| // err_o calc. bit0: single error, bit1: double error |
| single_error = ^syndrome_o; |
| err_o[0] = single_error; |
| err_o[1] = ~single_error & (|syndrome_o); |
| |
| dec.data = d_o; |
| dec.syndrome = syndrome_o; |
| dec.err = err_o; |
| return dec; |
| |
| endfunction |
| |
| function automatic logic [27:0] prim_secded_28_22_enc (logic [21:0] in); |
| logic [27:0] out; |
| out = 28'(in); |
| out[22] = ^(out & 28'h03003FF); |
| out[23] = ^(out & 28'h010FC0F); |
| out[24] = ^(out & 28'h0371C71); |
| out[25] = ^(out & 28'h03B6592); |
| out[26] = ^(out & 28'h03DAAA4); |
| out[27] = ^(out & 28'h02ED348); |
| return out; |
| endfunction |
| |
| function automatic secded_28_22_t prim_secded_28_22_dec (logic [27:0] in); |
| logic [21:0] d_o; |
| logic [5:0] syndrome_o; |
| logic [1:0] err_o; |
| |
| secded_28_22_t dec; |
| |
| logic single_error; |
| |
| // Syndrome calculation |
| syndrome_o[0] = ^(in & 28'h07003FF); |
| syndrome_o[1] = ^(in & 28'h090FC0F); |
| syndrome_o[2] = ^(in & 28'h1371C71); |
| syndrome_o[3] = ^(in & 28'h23B6592); |
| syndrome_o[4] = ^(in & 28'h43DAAA4); |
| syndrome_o[5] = ^(in & 28'h82ED348); |
| |
| // Corrected output calculation |
| d_o[0] = (syndrome_o == 6'h7) ^ in[0]; |
| d_o[1] = (syndrome_o == 6'hb) ^ in[1]; |
| d_o[2] = (syndrome_o == 6'h13) ^ in[2]; |
| d_o[3] = (syndrome_o == 6'h23) ^ in[3]; |
| d_o[4] = (syndrome_o == 6'hd) ^ in[4]; |
| d_o[5] = (syndrome_o == 6'h15) ^ in[5]; |
| d_o[6] = (syndrome_o == 6'h25) ^ in[6]; |
| d_o[7] = (syndrome_o == 6'h19) ^ in[7]; |
| d_o[8] = (syndrome_o == 6'h29) ^ in[8]; |
| d_o[9] = (syndrome_o == 6'h31) ^ in[9]; |
| d_o[10] = (syndrome_o == 6'he) ^ in[10]; |
| d_o[11] = (syndrome_o == 6'h16) ^ in[11]; |
| d_o[12] = (syndrome_o == 6'h26) ^ in[12]; |
| d_o[13] = (syndrome_o == 6'h1a) ^ in[13]; |
| d_o[14] = (syndrome_o == 6'h2a) ^ in[14]; |
| d_o[15] = (syndrome_o == 6'h32) ^ in[15]; |
| d_o[16] = (syndrome_o == 6'h1c) ^ in[16]; |
| d_o[17] = (syndrome_o == 6'h2c) ^ in[17]; |
| d_o[18] = (syndrome_o == 6'h34) ^ in[18]; |
| d_o[19] = (syndrome_o == 6'h38) ^ in[19]; |
| d_o[20] = (syndrome_o == 6'h1f) ^ in[20]; |
| d_o[21] = (syndrome_o == 6'h3d) ^ in[21]; |
| |
| // err_o calc. bit0: single error, bit1: double error |
| single_error = ^syndrome_o; |
| err_o[0] = single_error; |
| err_o[1] = ~single_error & (|syndrome_o); |
| |
| dec.data = d_o; |
| dec.syndrome = syndrome_o; |
| dec.err = err_o; |
| return dec; |
| |
| endfunction |
| |
| function automatic logic [38:0] prim_secded_39_32_enc (logic [31:0] in); |
| logic [38:0] out; |
| out = 39'(in); |
| out[32] = ^(out & 39'h00850E56A2); |
| out[33] = ^(out & 39'h002E534C61); |
| out[34] = ^(out & 39'h000901A9FE); |
| out[35] = ^(out & 39'h007079A702); |
| out[36] = ^(out & 39'h00CABA900D); |
| out[37] = ^(out & 39'h00D3C44B18); |
| out[38] = ^(out & 39'h0034A430D5); |
| return out; |
| endfunction |
| |
| function automatic secded_39_32_t prim_secded_39_32_dec (logic [38:0] in); |
| logic [31:0] d_o; |
| logic [6:0] syndrome_o; |
| logic [1:0] err_o; |
| |
| secded_39_32_t dec; |
| |
| logic single_error; |
| |
| // Syndrome calculation |
| syndrome_o[0] = ^(in & 39'h01850E56A2); |
| syndrome_o[1] = ^(in & 39'h022E534C61); |
| syndrome_o[2] = ^(in & 39'h040901A9FE); |
| syndrome_o[3] = ^(in & 39'h087079A702); |
| syndrome_o[4] = ^(in & 39'h10CABA900D); |
| syndrome_o[5] = ^(in & 39'h20D3C44B18); |
| syndrome_o[6] = ^(in & 39'h4034A430D5); |
| |
| // Corrected output calculation |
| d_o[0] = (syndrome_o == 7'h52) ^ in[0]; |
| d_o[1] = (syndrome_o == 7'hd) ^ in[1]; |
| d_o[2] = (syndrome_o == 7'h54) ^ in[2]; |
| d_o[3] = (syndrome_o == 7'h34) ^ in[3]; |
| d_o[4] = (syndrome_o == 7'h64) ^ in[4]; |
| d_o[5] = (syndrome_o == 7'h7) ^ in[5]; |
| d_o[6] = (syndrome_o == 7'h46) ^ in[6]; |
| d_o[7] = (syndrome_o == 7'h45) ^ in[7]; |
| d_o[8] = (syndrome_o == 7'h2c) ^ in[8]; |
| d_o[9] = (syndrome_o == 7'h29) ^ in[9]; |
| d_o[10] = (syndrome_o == 7'hb) ^ in[10]; |
| d_o[11] = (syndrome_o == 7'h26) ^ in[11]; |
| d_o[12] = (syndrome_o == 7'h51) ^ in[12]; |
| d_o[13] = (syndrome_o == 7'h4c) ^ in[13]; |
| d_o[14] = (syndrome_o == 7'h23) ^ in[14]; |
| d_o[15] = (syndrome_o == 7'h1c) ^ in[15]; |
| d_o[16] = (syndrome_o == 7'he) ^ in[16]; |
| d_o[17] = (syndrome_o == 7'h13) ^ in[17]; |
| d_o[18] = (syndrome_o == 7'h61) ^ in[18]; |
| d_o[19] = (syndrome_o == 7'h19) ^ in[19]; |
| d_o[20] = (syndrome_o == 7'h1a) ^ in[20]; |
| d_o[21] = (syndrome_o == 7'h58) ^ in[21]; |
| d_o[22] = (syndrome_o == 7'h2a) ^ in[22]; |
| d_o[23] = (syndrome_o == 7'h70) ^ in[23]; |
| d_o[24] = (syndrome_o == 7'h25) ^ in[24]; |
| d_o[25] = (syndrome_o == 7'h32) ^ in[25]; |
| d_o[26] = (syndrome_o == 7'h43) ^ in[26]; |
| d_o[27] = (syndrome_o == 7'h16) ^ in[27]; |
| d_o[28] = (syndrome_o == 7'h68) ^ in[28]; |
| d_o[29] = (syndrome_o == 7'h4a) ^ in[29]; |
| d_o[30] = (syndrome_o == 7'h38) ^ in[30]; |
| d_o[31] = (syndrome_o == 7'h31) ^ in[31]; |
| |
| // err_o calc. bit0: single error, bit1: double error |
| single_error = ^syndrome_o; |
| err_o[0] = single_error; |
| err_o[1] = ~single_error & (|syndrome_o); |
| |
| dec.data = d_o; |
| dec.syndrome = syndrome_o; |
| dec.err = err_o; |
| return dec; |
| |
| endfunction |
| |
| function automatic logic [63:0] prim_secded_64_57_enc (logic [56:0] in); |
| logic [63:0] out; |
| out = 64'(in); |
| out[57] = ^(out & 64'h0103FFF800007FFF); |
| out[58] = ^(out & 64'h017C1FF801FF801F); |
| out[59] = ^(out & 64'h01BDE1F87E0781E1); |
| out[60] = ^(out & 64'h01DEEE3B8E388E22); |
| out[61] = ^(out & 64'h01EF76CDB2C93244); |
| out[62] = ^(out & 64'h01F7BB56D5525488); |
| out[63] = ^(out & 64'h01FBDDA769A46910); |
| return out; |
| endfunction |
| |
| function automatic secded_64_57_t prim_secded_64_57_dec (logic [63:0] in); |
| logic [56:0] d_o; |
| logic [6:0] syndrome_o; |
| logic [1:0] err_o; |
| |
| secded_64_57_t dec; |
| |
| logic single_error; |
| |
| // Syndrome calculation |
| syndrome_o[0] = ^(in & 64'h0303FFF800007FFF); |
| syndrome_o[1] = ^(in & 64'h057C1FF801FF801F); |
| syndrome_o[2] = ^(in & 64'h09BDE1F87E0781E1); |
| syndrome_o[3] = ^(in & 64'h11DEEE3B8E388E22); |
| syndrome_o[4] = ^(in & 64'h21EF76CDB2C93244); |
| syndrome_o[5] = ^(in & 64'h41F7BB56D5525488); |
| syndrome_o[6] = ^(in & 64'h81FBDDA769A46910); |
| |
| // Corrected output calculation |
| d_o[0] = (syndrome_o == 7'h7) ^ in[0]; |
| d_o[1] = (syndrome_o == 7'hb) ^ in[1]; |
| d_o[2] = (syndrome_o == 7'h13) ^ in[2]; |
| d_o[3] = (syndrome_o == 7'h23) ^ in[3]; |
| d_o[4] = (syndrome_o == 7'h43) ^ in[4]; |
| d_o[5] = (syndrome_o == 7'hd) ^ in[5]; |
| d_o[6] = (syndrome_o == 7'h15) ^ in[6]; |
| d_o[7] = (syndrome_o == 7'h25) ^ in[7]; |
| d_o[8] = (syndrome_o == 7'h45) ^ in[8]; |
| d_o[9] = (syndrome_o == 7'h19) ^ in[9]; |
| d_o[10] = (syndrome_o == 7'h29) ^ in[10]; |
| d_o[11] = (syndrome_o == 7'h49) ^ in[11]; |
| d_o[12] = (syndrome_o == 7'h31) ^ in[12]; |
| d_o[13] = (syndrome_o == 7'h51) ^ in[13]; |
| d_o[14] = (syndrome_o == 7'h61) ^ in[14]; |
| d_o[15] = (syndrome_o == 7'he) ^ in[15]; |
| d_o[16] = (syndrome_o == 7'h16) ^ in[16]; |
| d_o[17] = (syndrome_o == 7'h26) ^ in[17]; |
| d_o[18] = (syndrome_o == 7'h46) ^ in[18]; |
| d_o[19] = (syndrome_o == 7'h1a) ^ in[19]; |
| d_o[20] = (syndrome_o == 7'h2a) ^ in[20]; |
| d_o[21] = (syndrome_o == 7'h4a) ^ in[21]; |
| d_o[22] = (syndrome_o == 7'h32) ^ in[22]; |
| d_o[23] = (syndrome_o == 7'h52) ^ in[23]; |
| d_o[24] = (syndrome_o == 7'h62) ^ in[24]; |
| d_o[25] = (syndrome_o == 7'h1c) ^ in[25]; |
| d_o[26] = (syndrome_o == 7'h2c) ^ in[26]; |
| d_o[27] = (syndrome_o == 7'h4c) ^ in[27]; |
| d_o[28] = (syndrome_o == 7'h34) ^ in[28]; |
| d_o[29] = (syndrome_o == 7'h54) ^ in[29]; |
| d_o[30] = (syndrome_o == 7'h64) ^ in[30]; |
| d_o[31] = (syndrome_o == 7'h38) ^ in[31]; |
| d_o[32] = (syndrome_o == 7'h58) ^ in[32]; |
| d_o[33] = (syndrome_o == 7'h68) ^ in[33]; |
| d_o[34] = (syndrome_o == 7'h70) ^ in[34]; |
| d_o[35] = (syndrome_o == 7'h1f) ^ in[35]; |
| d_o[36] = (syndrome_o == 7'h2f) ^ in[36]; |
| d_o[37] = (syndrome_o == 7'h4f) ^ in[37]; |
| d_o[38] = (syndrome_o == 7'h37) ^ in[38]; |
| d_o[39] = (syndrome_o == 7'h57) ^ in[39]; |
| d_o[40] = (syndrome_o == 7'h67) ^ in[40]; |
| d_o[41] = (syndrome_o == 7'h3b) ^ in[41]; |
| d_o[42] = (syndrome_o == 7'h5b) ^ in[42]; |
| d_o[43] = (syndrome_o == 7'h6b) ^ in[43]; |
| d_o[44] = (syndrome_o == 7'h73) ^ in[44]; |
| d_o[45] = (syndrome_o == 7'h3d) ^ in[45]; |
| d_o[46] = (syndrome_o == 7'h5d) ^ in[46]; |
| d_o[47] = (syndrome_o == 7'h6d) ^ in[47]; |
| d_o[48] = (syndrome_o == 7'h75) ^ in[48]; |
| d_o[49] = (syndrome_o == 7'h79) ^ in[49]; |
| d_o[50] = (syndrome_o == 7'h3e) ^ in[50]; |
| d_o[51] = (syndrome_o == 7'h5e) ^ in[51]; |
| d_o[52] = (syndrome_o == 7'h6e) ^ in[52]; |
| d_o[53] = (syndrome_o == 7'h76) ^ in[53]; |
| d_o[54] = (syndrome_o == 7'h7a) ^ in[54]; |
| d_o[55] = (syndrome_o == 7'h7c) ^ in[55]; |
| d_o[56] = (syndrome_o == 7'h7f) ^ in[56]; |
| |
| // err_o calc. bit0: single error, bit1: double error |
| single_error = ^syndrome_o; |
| err_o[0] = single_error; |
| err_o[1] = ~single_error & (|syndrome_o); |
| |
| dec.data = d_o; |
| dec.syndrome = syndrome_o; |
| dec.err = err_o; |
| return dec; |
| |
| endfunction |
| |
| function automatic logic [71:0] prim_secded_72_64_enc (logic [63:0] in); |
| logic [71:0] out; |
| out = 72'(in); |
| out[64] = ^(out & 72'h009D000000001FFFFF); |
| out[65] = ^(out & 72'h007600000FFFE0003F); |
| out[66] = ^(out & 72'h0079003FF003E007C1); |
| out[67] = ^(out & 72'h00A70FC0F03C207842); |
| out[68] = ^(out & 72'h00D371C711C4438884); |
| out[69] = ^(out & 72'h00F8B65926488C9108); |
| out[70] = ^(out & 72'h00AEDAAA4A91152210); |
| out[71] = ^(out & 72'h004FED348D221A4420); |
| return out; |
| endfunction |
| |
| function automatic secded_72_64_t prim_secded_72_64_dec (logic [71:0] in); |
| logic [63:0] d_o; |
| logic [7:0] syndrome_o; |
| logic [1:0] err_o; |
| |
| secded_72_64_t dec; |
| |
| logic single_error; |
| |
| // Syndrome calculation |
| syndrome_o[0] = ^(in & 72'h019D000000001FFFFF); |
| syndrome_o[1] = ^(in & 72'h027600000FFFE0003F); |
| syndrome_o[2] = ^(in & 72'h0479003FF003E007C1); |
| syndrome_o[3] = ^(in & 72'h08A70FC0F03C207842); |
| syndrome_o[4] = ^(in & 72'h10D371C711C4438884); |
| syndrome_o[5] = ^(in & 72'h20F8B65926488C9108); |
| syndrome_o[6] = ^(in & 72'h40AEDAAA4A91152210); |
| syndrome_o[7] = ^(in & 72'h804FED348D221A4420); |
| |
| // Corrected output calculation |
| d_o[0] = (syndrome_o == 8'h7) ^ in[0]; |
| d_o[1] = (syndrome_o == 8'hb) ^ in[1]; |
| d_o[2] = (syndrome_o == 8'h13) ^ in[2]; |
| d_o[3] = (syndrome_o == 8'h23) ^ in[3]; |
| d_o[4] = (syndrome_o == 8'h43) ^ in[4]; |
| d_o[5] = (syndrome_o == 8'h83) ^ in[5]; |
| d_o[6] = (syndrome_o == 8'hd) ^ in[6]; |
| d_o[7] = (syndrome_o == 8'h15) ^ in[7]; |
| d_o[8] = (syndrome_o == 8'h25) ^ in[8]; |
| d_o[9] = (syndrome_o == 8'h45) ^ in[9]; |
| d_o[10] = (syndrome_o == 8'h85) ^ in[10]; |
| d_o[11] = (syndrome_o == 8'h19) ^ in[11]; |
| d_o[12] = (syndrome_o == 8'h29) ^ in[12]; |
| d_o[13] = (syndrome_o == 8'h49) ^ in[13]; |
| d_o[14] = (syndrome_o == 8'h89) ^ in[14]; |
| d_o[15] = (syndrome_o == 8'h31) ^ in[15]; |
| d_o[16] = (syndrome_o == 8'h51) ^ in[16]; |
| d_o[17] = (syndrome_o == 8'h91) ^ in[17]; |
| d_o[18] = (syndrome_o == 8'h61) ^ in[18]; |
| d_o[19] = (syndrome_o == 8'ha1) ^ in[19]; |
| d_o[20] = (syndrome_o == 8'hc1) ^ in[20]; |
| d_o[21] = (syndrome_o == 8'he) ^ in[21]; |
| d_o[22] = (syndrome_o == 8'h16) ^ in[22]; |
| d_o[23] = (syndrome_o == 8'h26) ^ in[23]; |
| d_o[24] = (syndrome_o == 8'h46) ^ in[24]; |
| d_o[25] = (syndrome_o == 8'h86) ^ in[25]; |
| d_o[26] = (syndrome_o == 8'h1a) ^ in[26]; |
| d_o[27] = (syndrome_o == 8'h2a) ^ in[27]; |
| d_o[28] = (syndrome_o == 8'h4a) ^ in[28]; |
| d_o[29] = (syndrome_o == 8'h8a) ^ in[29]; |
| d_o[30] = (syndrome_o == 8'h32) ^ in[30]; |
| d_o[31] = (syndrome_o == 8'h52) ^ in[31]; |
| d_o[32] = (syndrome_o == 8'h92) ^ in[32]; |
| d_o[33] = (syndrome_o == 8'h62) ^ in[33]; |
| d_o[34] = (syndrome_o == 8'ha2) ^ in[34]; |
| d_o[35] = (syndrome_o == 8'hc2) ^ in[35]; |
| d_o[36] = (syndrome_o == 8'h1c) ^ in[36]; |
| d_o[37] = (syndrome_o == 8'h2c) ^ in[37]; |
| d_o[38] = (syndrome_o == 8'h4c) ^ in[38]; |
| d_o[39] = (syndrome_o == 8'h8c) ^ in[39]; |
| d_o[40] = (syndrome_o == 8'h34) ^ in[40]; |
| d_o[41] = (syndrome_o == 8'h54) ^ in[41]; |
| d_o[42] = (syndrome_o == 8'h94) ^ in[42]; |
| d_o[43] = (syndrome_o == 8'h64) ^ in[43]; |
| d_o[44] = (syndrome_o == 8'ha4) ^ in[44]; |
| d_o[45] = (syndrome_o == 8'hc4) ^ in[45]; |
| d_o[46] = (syndrome_o == 8'h38) ^ in[46]; |
| d_o[47] = (syndrome_o == 8'h58) ^ in[47]; |
| d_o[48] = (syndrome_o == 8'h98) ^ in[48]; |
| d_o[49] = (syndrome_o == 8'h68) ^ in[49]; |
| d_o[50] = (syndrome_o == 8'ha8) ^ in[50]; |
| d_o[51] = (syndrome_o == 8'hc8) ^ in[51]; |
| d_o[52] = (syndrome_o == 8'h70) ^ in[52]; |
| d_o[53] = (syndrome_o == 8'hb0) ^ in[53]; |
| d_o[54] = (syndrome_o == 8'hd0) ^ in[54]; |
| d_o[55] = (syndrome_o == 8'he0) ^ in[55]; |
| d_o[56] = (syndrome_o == 8'h9d) ^ in[56]; |
| d_o[57] = (syndrome_o == 8'hda) ^ in[57]; |
| d_o[58] = (syndrome_o == 8'hcb) ^ in[58]; |
| d_o[59] = (syndrome_o == 8'he5) ^ in[59]; |
| d_o[60] = (syndrome_o == 8'h37) ^ in[60]; |
| d_o[61] = (syndrome_o == 8'h6e) ^ in[61]; |
| d_o[62] = (syndrome_o == 8'hb6) ^ in[62]; |
| d_o[63] = (syndrome_o == 8'h79) ^ in[63]; |
| |
| // err_o calc. bit0: single error, bit1: double error |
| single_error = ^syndrome_o; |
| err_o[0] = single_error; |
| err_o[1] = ~single_error & (|syndrome_o); |
| |
| dec.data = d_o; |
| dec.syndrome = syndrome_o; |
| dec.err = err_o; |
| return dec; |
| |
| endfunction |
| |
| function automatic logic [21:0] prim_secded_hamming_22_16_enc (logic [15:0] in); |
| logic [21:0] out; |
| out = 22'(in); |
| out[16] = ^(out & 22'h00AD5B); |
| out[17] = ^(out & 22'h00366D); |
| out[18] = ^(out & 22'h00C78E); |
| out[19] = ^(out & 22'h0007F0); |
| out[20] = ^(out & 22'h00F800); |
| out[21] = ^(out & 22'h1FFFFF); |
| return out; |
| endfunction |
| |
| function automatic secded_hamming_22_16_t prim_secded_hamming_22_16_dec (logic [21:0] in); |
| logic [15:0] d_o; |
| logic [5:0] syndrome_o; |
| logic [1:0] err_o; |
| |
| secded_hamming_22_16_t dec; |
| |
| |
| // Syndrome calculation |
| syndrome_o[0] = ^(in & 22'h01AD5B); |
| syndrome_o[1] = ^(in & 22'h02366D); |
| syndrome_o[2] = ^(in & 22'h04C78E); |
| syndrome_o[3] = ^(in & 22'h0807F0); |
| syndrome_o[4] = ^(in & 22'h10F800); |
| syndrome_o[5] = ^(in & 22'h3FFFFF); |
| |
| // Corrected output calculation |
| d_o[0] = (syndrome_o == 6'h23) ^ in[0]; |
| d_o[1] = (syndrome_o == 6'h25) ^ in[1]; |
| d_o[2] = (syndrome_o == 6'h26) ^ in[2]; |
| d_o[3] = (syndrome_o == 6'h27) ^ in[3]; |
| d_o[4] = (syndrome_o == 6'h29) ^ in[4]; |
| d_o[5] = (syndrome_o == 6'h2a) ^ in[5]; |
| d_o[6] = (syndrome_o == 6'h2b) ^ in[6]; |
| d_o[7] = (syndrome_o == 6'h2c) ^ in[7]; |
| d_o[8] = (syndrome_o == 6'h2d) ^ in[8]; |
| d_o[9] = (syndrome_o == 6'h2e) ^ in[9]; |
| d_o[10] = (syndrome_o == 6'h2f) ^ in[10]; |
| d_o[11] = (syndrome_o == 6'h31) ^ in[11]; |
| d_o[12] = (syndrome_o == 6'h32) ^ in[12]; |
| d_o[13] = (syndrome_o == 6'h33) ^ in[13]; |
| d_o[14] = (syndrome_o == 6'h34) ^ in[14]; |
| d_o[15] = (syndrome_o == 6'h35) ^ in[15]; |
| |
| // err_o calc. bit0: single error, bit1: double error |
| err_o[0] = syndrome_o[5]; |
| err_o[1] = |syndrome_o[4:0] & ~syndrome_o[5]; |
| |
| dec.data = d_o; |
| dec.syndrome = syndrome_o; |
| dec.err = err_o; |
| return dec; |
| |
| endfunction |
| |
| function automatic logic [38:0] prim_secded_hamming_39_32_enc (logic [31:0] in); |
| logic [38:0] out; |
| out = 39'(in); |
| out[32] = ^(out & 39'h0056AAAD5B); |
| out[33] = ^(out & 39'h009B33366D); |
| out[34] = ^(out & 39'h00E3C3C78E); |
| out[35] = ^(out & 39'h0003FC07F0); |
| out[36] = ^(out & 39'h0003FFF800); |
| out[37] = ^(out & 39'h00FC000000); |
| out[38] = ^(out & 39'h3FFFFFFFFF); |
| return out; |
| endfunction |
| |
| function automatic secded_hamming_39_32_t prim_secded_hamming_39_32_dec (logic [38:0] in); |
| logic [31:0] d_o; |
| logic [6:0] syndrome_o; |
| logic [1:0] err_o; |
| |
| secded_hamming_39_32_t dec; |
| |
| |
| // Syndrome calculation |
| syndrome_o[0] = ^(in & 39'h0156AAAD5B); |
| syndrome_o[1] = ^(in & 39'h029B33366D); |
| syndrome_o[2] = ^(in & 39'h04E3C3C78E); |
| syndrome_o[3] = ^(in & 39'h0803FC07F0); |
| syndrome_o[4] = ^(in & 39'h1003FFF800); |
| syndrome_o[5] = ^(in & 39'h20FC000000); |
| syndrome_o[6] = ^(in & 39'h7FFFFFFFFF); |
| |
| // Corrected output calculation |
| d_o[0] = (syndrome_o == 7'h43) ^ in[0]; |
| d_o[1] = (syndrome_o == 7'h45) ^ in[1]; |
| d_o[2] = (syndrome_o == 7'h46) ^ in[2]; |
| d_o[3] = (syndrome_o == 7'h47) ^ in[3]; |
| d_o[4] = (syndrome_o == 7'h49) ^ in[4]; |
| d_o[5] = (syndrome_o == 7'h4a) ^ in[5]; |
| d_o[6] = (syndrome_o == 7'h4b) ^ in[6]; |
| d_o[7] = (syndrome_o == 7'h4c) ^ in[7]; |
| d_o[8] = (syndrome_o == 7'h4d) ^ in[8]; |
| d_o[9] = (syndrome_o == 7'h4e) ^ in[9]; |
| d_o[10] = (syndrome_o == 7'h4f) ^ in[10]; |
| d_o[11] = (syndrome_o == 7'h51) ^ in[11]; |
| d_o[12] = (syndrome_o == 7'h52) ^ in[12]; |
| d_o[13] = (syndrome_o == 7'h53) ^ in[13]; |
| d_o[14] = (syndrome_o == 7'h54) ^ in[14]; |
| d_o[15] = (syndrome_o == 7'h55) ^ in[15]; |
| d_o[16] = (syndrome_o == 7'h56) ^ in[16]; |
| d_o[17] = (syndrome_o == 7'h57) ^ in[17]; |
| d_o[18] = (syndrome_o == 7'h58) ^ in[18]; |
| d_o[19] = (syndrome_o == 7'h59) ^ in[19]; |
| d_o[20] = (syndrome_o == 7'h5a) ^ in[20]; |
| d_o[21] = (syndrome_o == 7'h5b) ^ in[21]; |
| d_o[22] = (syndrome_o == 7'h5c) ^ in[22]; |
| d_o[23] = (syndrome_o == 7'h5d) ^ in[23]; |
| d_o[24] = (syndrome_o == 7'h5e) ^ in[24]; |
| d_o[25] = (syndrome_o == 7'h5f) ^ in[25]; |
| d_o[26] = (syndrome_o == 7'h61) ^ in[26]; |
| d_o[27] = (syndrome_o == 7'h62) ^ in[27]; |
| d_o[28] = (syndrome_o == 7'h63) ^ in[28]; |
| d_o[29] = (syndrome_o == 7'h64) ^ in[29]; |
| d_o[30] = (syndrome_o == 7'h65) ^ in[30]; |
| d_o[31] = (syndrome_o == 7'h66) ^ in[31]; |
| |
| // err_o calc. bit0: single error, bit1: double error |
| err_o[0] = syndrome_o[6]; |
| err_o[1] = |syndrome_o[5:0] & ~syndrome_o[6]; |
| |
| dec.data = d_o; |
| dec.syndrome = syndrome_o; |
| dec.err = err_o; |
| return dec; |
| |
| endfunction |
| |
| function automatic logic [71:0] prim_secded_hamming_72_64_enc (logic [63:0] in); |
| logic [71:0] out; |
| out = 72'(in); |
| out[64] = ^(out & 72'h00AB55555556AAAD5B); |
| out[65] = ^(out & 72'h00CD9999999B33366D); |
| out[66] = ^(out & 72'h00F1E1E1E1E3C3C78E); |
| out[67] = ^(out & 72'h0001FE01FE03FC07F0); |
| out[68] = ^(out & 72'h0001FFFE0003FFF800); |
| out[69] = ^(out & 72'h0001FFFFFFFC000000); |
| out[70] = ^(out & 72'h00FE00000000000000); |
| out[71] = ^(out & 72'h7FFFFFFFFFFFFFFFFF); |
| return out; |
| endfunction |
| |
| function automatic secded_hamming_72_64_t prim_secded_hamming_72_64_dec (logic [71:0] in); |
| logic [63:0] d_o; |
| logic [7:0] syndrome_o; |
| logic [1:0] err_o; |
| |
| secded_hamming_72_64_t dec; |
| |
| |
| // Syndrome calculation |
| syndrome_o[0] = ^(in & 72'h01AB55555556AAAD5B); |
| syndrome_o[1] = ^(in & 72'h02CD9999999B33366D); |
| syndrome_o[2] = ^(in & 72'h04F1E1E1E1E3C3C78E); |
| syndrome_o[3] = ^(in & 72'h0801FE01FE03FC07F0); |
| syndrome_o[4] = ^(in & 72'h1001FFFE0003FFF800); |
| syndrome_o[5] = ^(in & 72'h2001FFFFFFFC000000); |
| syndrome_o[6] = ^(in & 72'h40FE00000000000000); |
| syndrome_o[7] = ^(in & 72'hFFFFFFFFFFFFFFFFFF); |
| |
| // Corrected output calculation |
| d_o[0] = (syndrome_o == 8'h83) ^ in[0]; |
| d_o[1] = (syndrome_o == 8'h85) ^ in[1]; |
| d_o[2] = (syndrome_o == 8'h86) ^ in[2]; |
| d_o[3] = (syndrome_o == 8'h87) ^ in[3]; |
| d_o[4] = (syndrome_o == 8'h89) ^ in[4]; |
| d_o[5] = (syndrome_o == 8'h8a) ^ in[5]; |
| d_o[6] = (syndrome_o == 8'h8b) ^ in[6]; |
| d_o[7] = (syndrome_o == 8'h8c) ^ in[7]; |
| d_o[8] = (syndrome_o == 8'h8d) ^ in[8]; |
| d_o[9] = (syndrome_o == 8'h8e) ^ in[9]; |
| d_o[10] = (syndrome_o == 8'h8f) ^ in[10]; |
| d_o[11] = (syndrome_o == 8'h91) ^ in[11]; |
| d_o[12] = (syndrome_o == 8'h92) ^ in[12]; |
| d_o[13] = (syndrome_o == 8'h93) ^ in[13]; |
| d_o[14] = (syndrome_o == 8'h94) ^ in[14]; |
| d_o[15] = (syndrome_o == 8'h95) ^ in[15]; |
| d_o[16] = (syndrome_o == 8'h96) ^ in[16]; |
| d_o[17] = (syndrome_o == 8'h97) ^ in[17]; |
| d_o[18] = (syndrome_o == 8'h98) ^ in[18]; |
| d_o[19] = (syndrome_o == 8'h99) ^ in[19]; |
| d_o[20] = (syndrome_o == 8'h9a) ^ in[20]; |
| d_o[21] = (syndrome_o == 8'h9b) ^ in[21]; |
| d_o[22] = (syndrome_o == 8'h9c) ^ in[22]; |
| d_o[23] = (syndrome_o == 8'h9d) ^ in[23]; |
| d_o[24] = (syndrome_o == 8'h9e) ^ in[24]; |
| d_o[25] = (syndrome_o == 8'h9f) ^ in[25]; |
| d_o[26] = (syndrome_o == 8'ha1) ^ in[26]; |
| d_o[27] = (syndrome_o == 8'ha2) ^ in[27]; |
| d_o[28] = (syndrome_o == 8'ha3) ^ in[28]; |
| d_o[29] = (syndrome_o == 8'ha4) ^ in[29]; |
| d_o[30] = (syndrome_o == 8'ha5) ^ in[30]; |
| d_o[31] = (syndrome_o == 8'ha6) ^ in[31]; |
| d_o[32] = (syndrome_o == 8'ha7) ^ in[32]; |
| d_o[33] = (syndrome_o == 8'ha8) ^ in[33]; |
| d_o[34] = (syndrome_o == 8'ha9) ^ in[34]; |
| d_o[35] = (syndrome_o == 8'haa) ^ in[35]; |
| d_o[36] = (syndrome_o == 8'hab) ^ in[36]; |
| d_o[37] = (syndrome_o == 8'hac) ^ in[37]; |
| d_o[38] = (syndrome_o == 8'had) ^ in[38]; |
| d_o[39] = (syndrome_o == 8'hae) ^ in[39]; |
| d_o[40] = (syndrome_o == 8'haf) ^ in[40]; |
| d_o[41] = (syndrome_o == 8'hb0) ^ in[41]; |
| d_o[42] = (syndrome_o == 8'hb1) ^ in[42]; |
| d_o[43] = (syndrome_o == 8'hb2) ^ in[43]; |
| d_o[44] = (syndrome_o == 8'hb3) ^ in[44]; |
| d_o[45] = (syndrome_o == 8'hb4) ^ in[45]; |
| d_o[46] = (syndrome_o == 8'hb5) ^ in[46]; |
| d_o[47] = (syndrome_o == 8'hb6) ^ in[47]; |
| d_o[48] = (syndrome_o == 8'hb7) ^ in[48]; |
| d_o[49] = (syndrome_o == 8'hb8) ^ in[49]; |
| d_o[50] = (syndrome_o == 8'hb9) ^ in[50]; |
| d_o[51] = (syndrome_o == 8'hba) ^ in[51]; |
| d_o[52] = (syndrome_o == 8'hbb) ^ in[52]; |
| d_o[53] = (syndrome_o == 8'hbc) ^ in[53]; |
| d_o[54] = (syndrome_o == 8'hbd) ^ in[54]; |
| d_o[55] = (syndrome_o == 8'hbe) ^ in[55]; |
| d_o[56] = (syndrome_o == 8'hbf) ^ in[56]; |
| d_o[57] = (syndrome_o == 8'hc1) ^ in[57]; |
| d_o[58] = (syndrome_o == 8'hc2) ^ in[58]; |
| d_o[59] = (syndrome_o == 8'hc3) ^ in[59]; |
| d_o[60] = (syndrome_o == 8'hc4) ^ in[60]; |
| d_o[61] = (syndrome_o == 8'hc5) ^ in[61]; |
| d_o[62] = (syndrome_o == 8'hc6) ^ in[62]; |
| d_o[63] = (syndrome_o == 8'hc7) ^ in[63]; |
| |
| // err_o calc. bit0: single error, bit1: double error |
| err_o[0] = syndrome_o[7]; |
| err_o[1] = |syndrome_o[6:0] & ~syndrome_o[7]; |
| |
| dec.data = d_o; |
| dec.syndrome = syndrome_o; |
| dec.err = err_o; |
| return dec; |
| |
| endfunction |
| |
| |
| endpackage |
