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Rev 7 → Rev 8
/SinglePathFPAdder/special_cases.v
0,0 → 1,57
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 18:56:11 10/07/2013 |
// Design Name: |
// Module Name: special_cases_mul_acc |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module special_cases #( parameter size_exception_field = 2'd2, |
parameter [size_exception_field - 1 : 0] zero = 0, //00 |
parameter [size_exception_field - 1 : 0] normal_number= 1, //01 |
parameter [size_exception_field - 1 : 0] infinity = 2, //10 |
parameter [size_exception_field - 1 : 0] NaN = 3) //11 |
( input [size_exception_field - 1 : 0] sp_case_a_number, |
input [size_exception_field - 1 : 0] sp_case_b_number, |
output reg [size_exception_field - 1 : 0] sp_case_result_o); |
|
always |
@(*) |
begin |
case ({sp_case_a_number, sp_case_b_number}) |
{zero, zero}: sp_case_result_o = zero; |
{zero, normal_number}: sp_case_result_o = normal_number; |
{zero, infinity}: sp_case_result_o = infinity; |
{zero, NaN}: sp_case_result_o = NaN; |
|
{normal_number,zero}: sp_case_result_o = normal_number; |
{normal_number,normal_number}: sp_case_result_o = normal_number; |
{normal_number,infinity}: sp_case_result_o = infinity; |
{normal_number,NaN}: sp_case_result_o = NaN; |
|
{infinity, zero}: sp_case_result_o = infinity; |
{infinity, normal_number}: sp_case_result_o = infinity; |
{infinity, infinity}: sp_case_result_o = infinity; |
{infinity, NaN}: sp_case_result_o = NaN; |
|
{NaN, zero}: sp_case_result_o = NaN; |
{NaN, normal_number}: sp_case_result_o = NaN; |
{NaN, infinity}: sp_case_result_o = NaN; |
{NaN, NaN}: sp_case_result_o = NaN; |
default: sp_case_result_o = zero; |
endcase |
end |
|
endmodule |
/SinglePathFPAdder/effective_op.v
0,0 → 1,40
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 17:41:11 11/04/2013 |
// Design Name: |
// Module Name: effective_op |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module effective_op( input a_sign, |
input b_sign, |
input sub, |
output reg eff_op); |
|
always |
@(*) |
begin |
case ({sub,a_sign, b_sign}) |
3'b000: eff_op = 0; |
3'b001: eff_op = 1; |
3'b010: eff_op = 1; |
3'b011: eff_op = 0; |
3'b100: eff_op = 1; |
3'b101: eff_op = 0; |
3'b110: eff_op = 0; |
3'b111: eff_op = 1; |
endcase |
end |
endmodule |
/SinglePathFPAdder/d_ff.v
0,0 → 1,37
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 09:39:58 02/04/2013 |
// Design Name: |
// Module Name: d_ff |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 / File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
|
module d_ff (clk, rst, d, q); |
parameter SIZE = 24; |
input clk; |
input rst; |
input [SIZE-1 : 0] d; |
output reg [SIZE-1 : 0] q; |
|
always |
@(posedge clk, posedge rst) |
begin |
if (rst) |
q <= {SIZE{1'b0}}; |
else |
q <= d; |
end |
endmodule |
/SinglePathFPAdder/shifter.v
0,0 → 1,112
|
|
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 18:00:33 10/15/2013 |
// Design Name: |
// Module Name: shifter |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
|
module shifter #( parameter INPUT_SIZE = 13, |
parameter SHIFT_SIZE = 4, |
parameter OUTPUT_SIZE = 24, //>INPUT_SIZE |
parameter DIRECTION = 1, |
parameter PIPELINE = 1, |
parameter [7:0] POSITION = 8'b00000000) |
(a, arith, shft, shifted_a); |
|
input [INPUT_SIZE-1:0] a; |
input arith; |
input [SHIFT_SIZE-1:0] shft; |
output [OUTPUT_SIZE-1:0] shifted_a; |
|
|
|
wire [OUTPUT_SIZE-1:0] a_temp_d[SHIFT_SIZE:0]; |
wire [OUTPUT_SIZE-1:0] a_temp_q[SHIFT_SIZE:0]; |
|
assign a_temp_q[0][OUTPUT_SIZE-1 : OUTPUT_SIZE-INPUT_SIZE] = a; |
assign a_temp_q[0][OUTPUT_SIZE-1-INPUT_SIZE : 0] = arith; |
|
generate |
begin : GENERATING |
genvar i; |
for (i = 0; i <= SHIFT_SIZE - 1; i = i + 1) |
begin : BARREL_SHIFTER_GENERATION |
if (DIRECTION == 1) |
begin : LEFT |
//begin : 1st_check |
genvar j; |
for (j = 0; j <= OUTPUT_SIZE - 1; j = j + 1) |
begin : MUX_GEN_L |
if (j < 2 ** i) |
begin : ZERO_INS_L |
assign a_temp_d[i][j] = (shft[i] == 1'b0) ? a_temp_q[i][j] : arith; |
end |
|
if (j >= 2 ** i) |
begin : BIT_INS_L |
assign a_temp_d[i][j] = (shft[i] == 1'b0) ? a_temp_q[i][j] : a_temp_q[i][j-2**i]; |
end |
end |
//end |
end |
|
if (DIRECTION == 0) |
begin : RIGHT |
//begin : 2nd_check |
genvar j; |
for (j = 0; j <= OUTPUT_SIZE - 1; j = j + 1) |
begin : MUX_GEN_R |
if (OUTPUT_SIZE - 1 < 2 ** i + j) |
begin : ZERO_INS_R |
assign a_temp_d[i][j] = (shft[i] == 1'b0) ? a_temp_q[i][j] : arith; |
end |
|
if (OUTPUT_SIZE - 1 >= 2 ** i + j) |
begin : BIT_INS_R |
assign a_temp_d[i][j] = (shft[i] == 1'b0) ? a_temp_q[i][j] : a_temp_q[i][j+2**i]; |
end |
end |
//end |
end |
|
if (PIPELINE != 0) |
begin : PIPELINE_INSERTION |
if (POSITION[i] == 1'b1) |
begin : LATCH |
d_ff #(OUTPUT_SIZE) D_INS(.clk(clk), .rst(rst), .d(a_temp_d[i]), .q(a_temp_q[i + 1])); |
end |
|
if (POSITION[i] == 1'b0) |
begin : NO_LATCH |
assign a_temp_q[i + 1] = a_temp_d[i]; |
end |
end |
|
if (PIPELINE == 0) |
begin : NO_PIPELINE |
assign a_temp_q[i + 1] = a_temp_d[i]; |
end |
end |
end |
endgenerate |
|
assign shifted_a = a_temp_q[SHIFT_SIZE]; |
|
endmodule |
|
/SinglePathFPAdder/SinglePathFPAdder.v
0,0 → 1,157
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 16:09:49 11/04/2013 |
// Design Name: |
// Module Name: SinglePathFPAdder |
// Project Name: |
// Target Devices: |
// Tool versions: |
|
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module SinglePathFPAdder #( parameter size_mantissa = 24, //1.M |
parameter size_exponent = 8, |
parameter size_exception_field = 2, |
parameter size_counter = 5, //log2(size_mantissa) + 1 = 5) |
parameter [size_exception_field - 1 : 0] zero = 0, //00 |
parameter [size_exception_field - 1 : 0] normal_number= 1, //01 |
parameter [size_exception_field - 1 : 0] infinity = 2, //10 |
parameter [size_exception_field - 1 : 0] NaN = 3, //11 |
parameter pipeline = 0, |
parameter pipeline_pos = 0, // 8 bits |
parameter double_size_mantissa = size_mantissa + size_mantissa, |
parameter double_size_counter = size_counter + 1, |
parameter size = size_mantissa + size_exponent + size_exception_field) |
|
(sub, a_number_i, b_number_i, resulted_number_o); |
|
input sub; |
input [size - 1 : 0] a_number_i; |
input [size - 1 : 0] b_number_i; |
output[size - 1 : 0] resulted_number_o; |
|
wire [size_mantissa - 1 : 0] m_a_number, m_b_number; |
wire [size_exponent - 1 : 0] e_a_number, e_b_number; |
wire s_a_number, s_b_number; |
wire [size_exception_field - 1 : 0] sp_case_a_number, sp_case_b_number; |
|
wire [size_exponent - 1 : 0] exp_difference; |
wire [size_exponent - 1 : 0] modify_exp_a, modify_exp_b; |
wire [double_size_mantissa - 1 : 0] shifted_m_a, shifted_m_b; |
wire eff_op; |
|
wire [double_size_mantissa : 0] unnormalized_mantissa; |
wire [double_size_counter-1: 0] lzs; |
wire [size_mantissa-1: 0] unrounded_mantissa; |
|
wire [size_mantissa-1: 0] resulted_mantissa; |
wire [size_exponent-1: 0] resulted_exponent; |
wire resulted_sign; |
wire [size_exception_field - 1 : 0] resulted_exception_field; |
|
wire [size_mantissa + 1 : 0] dummy_bits; |
|
assign m_a_number = {1'b1, a_number_i[size_mantissa - 2 :0]}; |
assign m_b_number = {1'b1, b_number_i[size_mantissa - 2 :0]}; |
assign e_a_number = a_number_i[size_mantissa + size_exponent - 1 : size_mantissa - 1]; |
assign e_b_number = b_number_i[size_mantissa + size_exponent - 1 : size_mantissa - 1]; |
assign s_a_number = a_number_i[size - size_exception_field - 1]; |
assign s_b_number = b_number_i[size - size_exception_field - 1]; |
assign sp_case_a_number = a_number_i[size - 1 : size - size_exception_field]; |
assign sp_case_b_number = b_number_i[size - 1 : size - size_exception_field]; |
|
//find the difference between exponents |
assign exp_difference = (e_a_number > e_b_number)? (e_a_number - e_b_number) : (e_b_number - e_a_number); |
|
assign {modify_exp_a, modify_exp_b} = (e_a_number > e_b_number)? {8'd0, exp_difference} : {exp_difference, 8'd0}; |
|
//shift the right mantissa |
shifter #( .INPUT_SIZE(size_mantissa), |
.SHIFT_SIZE(size_exponent), |
.OUTPUT_SIZE(double_size_mantissa), |
.DIRECTION(1'b0), //0=right, 1=left |
.PIPELINE(pipeline), |
.POSITION(pipeline_pos)) |
m_a_shifter_instance( .a(m_a_number),//mantissa |
.arith(1'b0),//logical shift |
.shft(modify_exp_a), |
.shifted_a(shifted_m_a)); |
|
shifter #( .INPUT_SIZE(size_mantissa), |
.SHIFT_SIZE(size_exponent), |
.OUTPUT_SIZE(double_size_mantissa), |
.DIRECTION(1'b0), //0=right, 1=left |
.PIPELINE(pipeline), |
.POSITION(pipeline_pos)) |
m_b_shifter_instance( .a(m_b_number),//mantissa |
.arith(1'b0),//logical shift |
.shft(modify_exp_b), |
.shifted_a(shifted_m_b)); |
|
//istantiate effective_operation_component |
effective_op effective_op_instance( .a_sign(s_a_number), .b_sign(s_b_number), .sub(sub), .eff_op(eff_op)); |
|
//compute unnormalized_mantissa |
assign unnormalized_mantissa = (eff_op)? ((shifted_m_a > shifted_m_b)? (shifted_m_a - shifted_m_b) : (shifted_m_b - shifted_m_a)) : |
shifted_m_a + shifted_m_b; |
|
//compute leading_zeros over unnormalized mantissa |
leading_zeros #( .SIZE_INT(double_size_mantissa + 1'b1), .SIZE_COUNTER(double_size_counter), .PIPELINE(pipeline)) |
leading_zeros_instance (.a(unnormalized_mantissa), |
.ovf(1'b0), |
.lz(lzs)); |
|
//compute shifting over unnormalized_mantissa |
shifter #( .INPUT_SIZE(double_size_mantissa + 1'b1), |
.SHIFT_SIZE(double_size_counter), |
.OUTPUT_SIZE(double_size_mantissa + 2'd2), |
.DIRECTION(1'b1), //0=right, 1=left |
.PIPELINE(pipeline), |
.POSITION(pipeline_pos)) |
shifter_instance( .a(unnormalized_mantissa),//mantissa |
.arith(1'b0),//logical shift |
.shft(lzs), |
.shifted_a({unrounded_mantissa, dummy_bits})); |
|
// |
//assign g = dummy_bits[size_mantissa + 1]; |
//assign sticky = |(dummy_bits[size_mantissa : 0]); |
//assign round_dec = g & (unrounded_mantissa[0] | sticky); |
|
//instantiate rounding_component |
rounding #( .SIZE_MOST_S_MANTISSA(size_mantissa), |
.SIZE_LEAST_S_MANTISSA(size_mantissa + 2'd2)) |
rounding_instance( .unrounded_mantissa(unrounded_mantissa), |
.dummy_bits(dummy_bits), |
.rounded_mantissa(resulted_mantissa)); |
|
|
//compute resulted_exponent |
assign resulted_exponent = (e_a_number >= e_b_number)? (e_a_number - lzs + 1'b1) : (e_b_number - lzs + 1'b1); |
|
//compute resulted_sign |
assign resulted_sign = (eff_op)? ((shifted_m_a > shifted_m_b)? s_a_number : ~s_a_number) : s_a_number; |
|
//compute exception_field |
special_cases #( .size_exception_field(size_exception_field), |
.zero(zero), |
.normal_number(normal_number), |
.infinity(infinity), |
.NaN(NaN)) |
special_cases_instance( .sp_case_a_number(sp_case_a_number), |
.sp_case_b_number(sp_case_b_number), |
.sp_case_result_o(resulted_exception_field)); |
|
//generate final result |
assign resulted_number_o = {resulted_exception_field, resulted_sign, resulted_exponent, resulted_mantissa[size_mantissa-2 : 0]}; |
|
endmodule |
/SinglePathFPAdder/rounding.v
0,0 → 1,35
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 16:09:49 11/04/2013 |
// Design Name: |
// Module Name: rounding |
// Project Name: |
// Target Devices: |
// Tool versions: |
|
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
|
module rounding #( parameter SIZE_MOST_S_MANTISSA = 24, |
parameter SIZE_LEAST_S_MANTISSA= 25) |
( input [SIZE_MOST_S_MANTISSA - 1 : 0] unrounded_mantissa, |
input [SIZE_LEAST_S_MANTISSA- 1 : 0] dummy_bits, |
output[SIZE_MOST_S_MANTISSA - 1 : 0] rounded_mantissa); |
|
wire g, sticky, round_dec; |
|
assign g = dummy_bits[SIZE_LEAST_S_MANTISSA - 1]; |
assign sticky = |(dummy_bits[SIZE_LEAST_S_MANTISSA - 2 : 0]); |
assign round_dec = g & (unrounded_mantissa[0] | sticky); |
assign rounded_mantissa = unrounded_mantissa + round_dec; |
|
endmodule |
/SinglePathFPAdder/leading_zeros.v
0,0 → 1,139
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 18:50:09 10/17/2013 |
// Design Name: |
// Module Name: leading_zeros |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module leading_zeros #( parameter SIZE_INT = 24, //mantissa bits |
parameter SIZE_COUNTER = 5, //log2(size_mantissa) + 1 = 5) |
parameter PIPELINE = 2) |
(a, ovf, lz); |
|
input [SIZE_INT-1:0] a; |
input ovf; |
output [SIZE_COUNTER-1:0] lz; |
|
|
parameter nr_levels = SIZE_COUNTER - 1; |
parameter max_pow_2 = 2 ** SIZE_COUNTER; |
parameter size_lz = SIZE_COUNTER; |
|
wire [max_pow_2-1:0] a_complete; |
wire [max_pow_2-1:0] v_d[nr_levels-1:0]; |
wire [max_pow_2-1:0] v_q[nr_levels-1:0]; |
wire [max_pow_2-1:0] p_d[nr_levels-1:0]; |
wire [max_pow_2-1:0] p_q[nr_levels-1:0]; |
wire [size_lz-1:0] lzc; |
|
assign a_complete[max_pow_2 - 1 : max_pow_2 - 1 - SIZE_INT + 1] = a; |
generate |
if (max_pow_2 != SIZE_INT) |
begin : gen_if |
assign a_complete[max_pow_2 - 1 - SIZE_INT : 0] = 0; |
end |
endgenerate |
|
generate |
begin : level_0 |
genvar i; |
for (i = max_pow_2/4 - 1; i >= 0; i = i - 1) |
begin : level_0 |
assign v_d[0][i] = (a_complete[4 * i + 3 : 4 * i] == 4'b0000) ? 1'b0 : 1'b1; |
assign p_d[0][2*i+1:2*i] = (a_complete[4 * i + 3] == 1'b1) ? 2'b00 : |
(a_complete[4 * i + 2] == 1'b1) ? 2'b01 : |
(a_complete[4 * i + 1] == 1'b1) ? 2'b10 : 2'b11; |
end |
end |
endgenerate |
|
generate |
begin : level_generation_begin |
genvar i; |
for (i = 1; i <= nr_levels - 1; i = i + 1) |
begin : level_generation |
//begin : v_levels_begin |
genvar j; |
for (j = 0; j <= max_pow_2/(2 ** (i + 2)) - 1; j = j + 1) |
begin : v_levels |
assign v_d[i][j] = v_q[i - 1][2*j+1] | v_q[i - 1][2*j]; |
end |
//end |
|
//begin : p_levels_begin |
// genvar j; |
for (j = 0; j <= max_pow_2/(2 ** (i + 2)) - 1; j = j + 1) |
begin : p_levels |
assign p_d[i][(i+2)*j+i+1] = (~(v_q[i - 1][2*j+1])); |
assign p_d[i][(i+2)*j+i : (i+2)*j] = (v_q[i - 1][2*j+1] == 1'b1) ? p_q[i - 1][j*(2*i+2)+2*i+1 : j*(2*i+2) + i + 1] : p_q[i - 1][j*(2*i+2)+i : j*(2*i+2)]; |
end |
//end |
end |
end |
endgenerate |
|
generate |
if (PIPELINE != 0) |
begin : pipeline_stages |
//begin : INSERTION_begin |
genvar i; |
for (i = 0; i <= nr_levels - 2; i = i + 1) |
begin : INSERTION |
if ((i + 1) % nr_levels/(PIPELINE + 1) == 0) |
begin : INS |
d_ff #(max_pow_2) P_Di(.clk(clk), .rst(rst), .d(p_d[i]), .q(p_q[i])); |
d_ff #(max_pow_2) V_Di(.clk(clk), .rst(rst), .d(v_d[i]), .q(v_q[i])); |
end |
|
if ((i + 1) % nr_levels/(PIPELINE + 1) != 0) |
begin : NO_INS |
assign p_q[i] = p_d[i]; |
assign v_q[i] = v_d[i]; |
end |
end |
//end |
assign p_q[nr_levels - 1] = p_d[nr_levels - 1]; |
assign v_q[nr_levels - 1] = v_d[nr_levels - 1]; |
end |
endgenerate |
|
generate |
if (PIPELINE == 0) |
begin : no_pipeline |
//begin : xhdl4 |
genvar i; |
for (i = 0; i <= nr_levels - 1; i = i + 1) |
begin : NO_INSERTION |
assign p_q[i] = p_d[i]; |
assign v_q[i] = v_d[i]; |
end |
//end |
end |
endgenerate |
|
assign lzc[size_lz - 1:0] = p_q[nr_levels - 1][size_lz - 1:0]; |
|
generate |
begin : lz_ovf_begin |
genvar i; |
for (i = 0; i <= size_lz - 1; i = i + 1) |
begin : lz_ovf |
assign lz[i] = lzc[i] & ((~ovf)); |
end |
end |
endgenerate |
|
endmodule |
/DualPathFPAdder/special_cases.v
0,0 → 1,57
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 18:56:11 10/07/2013 |
// Design Name: |
// Module Name: special_cases_mul_acc |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module special_cases #( parameter size_exception_field = 2'd2, |
parameter [size_exception_field - 1 : 0] zero = 0, //00 |
parameter [size_exception_field - 1 : 0] normal_number= 1, //01 |
parameter [size_exception_field - 1 : 0] infinity = 2, //10 |
parameter [size_exception_field - 1 : 0] NaN = 3) //11 |
( input [size_exception_field - 1 : 0] sp_case_a_number, |
input [size_exception_field - 1 : 0] sp_case_b_number, |
output reg [size_exception_field - 1 : 0] sp_case_result_o); |
|
always |
@(*) |
begin |
case ({sp_case_a_number, sp_case_b_number}) |
{zero, zero}: sp_case_result_o = zero; |
{zero, normal_number}: sp_case_result_o = normal_number; |
{zero, infinity}: sp_case_result_o = infinity; |
{zero, NaN}: sp_case_result_o = NaN; |
|
{normal_number,zero}: sp_case_result_o = normal_number; |
{normal_number,normal_number}: sp_case_result_o = normal_number; |
{normal_number,infinity}: sp_case_result_o = infinity; |
{normal_number,NaN}: sp_case_result_o = NaN; |
|
{infinity, zero}: sp_case_result_o = infinity; |
{infinity, normal_number}: sp_case_result_o = infinity; |
{infinity, infinity}: sp_case_result_o = infinity; |
{infinity, NaN}: sp_case_result_o = NaN; |
|
{NaN, zero}: sp_case_result_o = NaN; |
{NaN, normal_number}: sp_case_result_o = NaN; |
{NaN, infinity}: sp_case_result_o = NaN; |
{NaN, NaN}: sp_case_result_o = NaN; |
default: sp_case_result_o = zero; |
endcase |
end |
|
endmodule |
/DualPathFPAdder/effective_op.v
0,0 → 1,40
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 17:41:11 11/04/2013 |
// Design Name: |
// Module Name: effective_op |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module effective_op( input a_sign, |
input b_sign, |
input sub, |
output reg eff_op); |
|
always |
@(*) |
begin |
case ({sub,a_sign, b_sign}) |
3'b000: eff_op = 0; |
3'b001: eff_op = 1; |
3'b010: eff_op = 1; |
3'b011: eff_op = 0; |
3'b100: eff_op = 1; |
3'b101: eff_op = 0; |
3'b110: eff_op = 0; |
3'b111: eff_op = 1; |
endcase |
end |
endmodule |
/DualPathFPAdder/d_ff.v
0,0 → 1,37
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 09:39:58 02/04/2013 |
// Design Name: |
// Module Name: d_ff |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 / File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
|
module d_ff (clk, rst, d, q); |
parameter SIZE = 24; |
input clk; |
input rst; |
input [SIZE-1 : 0] d; |
output reg [SIZE-1 : 0] q; |
|
always |
@(posedge clk, posedge rst) |
begin |
if (rst) |
q <= {SIZE{1'b0}}; |
else |
q <= d; |
end |
endmodule |
/DualPathFPAdder/ClosePath.v
0,0 → 1,66
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 00:32:10 11/19/2013 |
// Design Name: |
// Module Name: ClosePath |
// Project Name: |
// Target Devices: |
// Tool versions: |
|
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module ClosePath #( parameter size_in_mantissa = 48, //1.M |
parameter size_out_mantissa = 24, |
parameter size_exponent = 8, |
parameter pipeline = 0, |
parameter pipeline_pos = 0, // 8 bits |
parameter size_counter = 5, //log2(size_mantissa) + 1 = 5) |
parameter double_size_counter = size_counter + 1, |
parameter double_size_mantissa = size_in_mantissa + size_in_mantissa) |
|
( input eff_op, |
input [size_in_mantissa-1 :0] m_a_number, |
input [size_in_mantissa-1 :0] m_b_number, |
input [size_exponent - 1 : 0] e_a_number, |
input [size_exponent - 1 : 0] e_b_number, |
output[size_out_mantissa-1:0] resulted_m_o, |
output[size_exponent - 1 : 0] resulted_e_o); |
|
wire [size_in_mantissa:0] unnormalized_mantissa; |
wire [double_size_counter-1: 0] lzs; |
wire [size_out_mantissa + 1 : 0] dummy_bits; |
|
//compute unnormalized_mantissa |
assign unnormalized_mantissa = (eff_op)? ((m_a_number > m_b_number)? (m_a_number - m_b_number) : (m_b_number - m_a_number)) : |
m_a_number + m_b_number; |
|
//compute leading_zeros over unnormalized mantissa |
leading_zeros #( .SIZE_INT(double_size_mantissa + 1'b1), .SIZE_COUNTER(double_size_counter), .PIPELINE(pipeline)) |
leading_zeros_instance (.a(unnormalized_mantissa), |
.ovf(1'b0), |
.lz(lzs)); |
|
//compute shifting over unnormalized_mantissa |
shifter #( .INPUT_SIZE(size_in_mantissa + 1'b1), |
.SHIFT_SIZE(double_size_counter), |
.OUTPUT_SIZE(size_in_mantissa + 2'd2), |
.DIRECTION(1'b1), //0=right, 1=left |
.PIPELINE(pipeline), |
.POSITION(pipeline_pos)) |
shifter_instance( .a(unnormalized_mantissa),//mantissa |
.arith(1'b0),//logical shift |
.shft(lzs), |
.shifted_a({resulted_m_o, dummy_bits})); |
|
assign resulted_e_o = (e_a_number > e_b_number)? (e_a_number - lzs + 1) : (e_b_number - lzs + 1); |
|
endmodule |
/DualPathFPAdder/shifter.v
0,0 → 1,112
|
|
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 18:00:33 10/15/2013 |
// Design Name: |
// Module Name: shifter |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
|
module shifter #( parameter INPUT_SIZE = 13, |
parameter SHIFT_SIZE = 4, |
parameter OUTPUT_SIZE = 24, //>INPUT_SIZE |
parameter DIRECTION = 1, |
parameter PIPELINE = 1, |
parameter [7:0] POSITION = 8'b00000000) |
(a, arith, shft, shifted_a); |
|
input [INPUT_SIZE-1:0] a; |
input arith; |
input [SHIFT_SIZE-1:0] shft; |
output [OUTPUT_SIZE-1:0] shifted_a; |
|
|
|
wire [OUTPUT_SIZE-1:0] a_temp_d[SHIFT_SIZE:0]; |
wire [OUTPUT_SIZE-1:0] a_temp_q[SHIFT_SIZE:0]; |
|
assign a_temp_q[0][OUTPUT_SIZE-1 : OUTPUT_SIZE-INPUT_SIZE] = a; |
assign a_temp_q[0][OUTPUT_SIZE-1-INPUT_SIZE : 0] = arith; |
|
generate |
begin : GENERATING |
genvar i; |
for (i = 0; i <= SHIFT_SIZE - 1; i = i + 1) |
begin : BARREL_SHIFTER_GENERATION |
if (DIRECTION == 1) |
begin : LEFT |
//begin : 1st_check |
genvar j; |
for (j = 0; j <= OUTPUT_SIZE - 1; j = j + 1) |
begin : MUX_GEN_L |
if (j < 2 ** i) |
begin : ZERO_INS_L |
assign a_temp_d[i][j] = (shft[i] == 1'b0) ? a_temp_q[i][j] : arith; |
end |
|
if (j >= 2 ** i) |
begin : BIT_INS_L |
assign a_temp_d[i][j] = (shft[i] == 1'b0) ? a_temp_q[i][j] : a_temp_q[i][j-2**i]; |
end |
end |
//end |
end |
|
if (DIRECTION == 0) |
begin : RIGHT |
//begin : 2nd_check |
genvar j; |
for (j = 0; j <= OUTPUT_SIZE - 1; j = j + 1) |
begin : MUX_GEN_R |
if (OUTPUT_SIZE - 1 < 2 ** i + j) |
begin : ZERO_INS_R |
assign a_temp_d[i][j] = (shft[i] == 1'b0) ? a_temp_q[i][j] : arith; |
end |
|
if (OUTPUT_SIZE - 1 >= 2 ** i + j) |
begin : BIT_INS_R |
assign a_temp_d[i][j] = (shft[i] == 1'b0) ? a_temp_q[i][j] : a_temp_q[i][j+2**i]; |
end |
end |
//end |
end |
|
if (PIPELINE != 0) |
begin : PIPELINE_INSERTION |
if (POSITION[i] == 1'b1) |
begin : LATCH |
d_ff #(OUTPUT_SIZE) D_INS(.clk(clk), .rst(rst), .d(a_temp_d[i]), .q(a_temp_q[i + 1])); |
end |
|
if (POSITION[i] == 1'b0) |
begin : NO_LATCH |
assign a_temp_q[i + 1] = a_temp_d[i]; |
end |
end |
|
if (PIPELINE == 0) |
begin : NO_PIPELINE |
assign a_temp_q[i + 1] = a_temp_d[i]; |
end |
end |
end |
endgenerate |
|
assign shifted_a = a_temp_q[SHIFT_SIZE]; |
|
endmodule |
|
/DualPathFPAdder/rounding.v
0,0 → 1,35
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 16:09:49 11/04/2013 |
// Design Name: |
// Module Name: rounding |
// Project Name: |
// Target Devices: |
// Tool versions: |
|
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
|
module rounding #( parameter SIZE_MOST_S_MANTISSA = 24, |
parameter SIZE_LEAST_S_MANTISSA= 25) |
( input [SIZE_MOST_S_MANTISSA - 1 : 0] unrounded_mantissa, |
input [SIZE_LEAST_S_MANTISSA- 1 : 0] dummy_bits, |
output[SIZE_MOST_S_MANTISSA - 1 : 0] rounded_mantissa); |
|
wire g, sticky, round_dec; |
|
assign g = dummy_bits[SIZE_LEAST_S_MANTISSA - 1]; |
assign sticky = |(dummy_bits[SIZE_LEAST_S_MANTISSA - 2 : 0]); |
assign round_dec = g & (unrounded_mantissa[0] | sticky); |
assign rounded_mantissa = unrounded_mantissa + round_dec; |
|
endmodule |
/DualPathFPAdder/leading_zeros.v
0,0 → 1,139
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 18:50:09 10/17/2013 |
// Design Name: |
// Module Name: leading_zeros |
// Project Name: |
// Target Devices: |
// Tool versions: |
// Description: |
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module leading_zeros #( parameter SIZE_INT = 24, //mantissa bits |
parameter SIZE_COUNTER = 5, //log2(size_mantissa) + 1 = 5) |
parameter PIPELINE = 2) |
(a, ovf, lz); |
|
input [SIZE_INT-1:0] a; |
input ovf; |
output [SIZE_COUNTER-1:0] lz; |
|
|
parameter nr_levels = SIZE_COUNTER - 1; |
parameter max_pow_2 = 2 ** SIZE_COUNTER; |
parameter size_lz = SIZE_COUNTER; |
|
wire [max_pow_2-1:0] a_complete; |
wire [max_pow_2-1:0] v_d[nr_levels-1:0]; |
wire [max_pow_2-1:0] v_q[nr_levels-1:0]; |
wire [max_pow_2-1:0] p_d[nr_levels-1:0]; |
wire [max_pow_2-1:0] p_q[nr_levels-1:0]; |
wire [size_lz-1:0] lzc; |
|
assign a_complete[max_pow_2 - 1 : max_pow_2 - 1 - SIZE_INT + 1] = a; |
generate |
if (max_pow_2 != SIZE_INT) |
begin : gen_if |
assign a_complete[max_pow_2 - 1 - SIZE_INT : 0] = 0; |
end |
endgenerate |
|
generate |
begin : level_0 |
genvar i; |
for (i = max_pow_2/4 - 1; i >= 0; i = i - 1) |
begin : level_0 |
assign v_d[0][i] = (a_complete[4 * i + 3 : 4 * i] == 4'b0000) ? 1'b0 : 1'b1; |
assign p_d[0][2*i+1:2*i] = (a_complete[4 * i + 3] == 1'b1) ? 2'b00 : |
(a_complete[4 * i + 2] == 1'b1) ? 2'b01 : |
(a_complete[4 * i + 1] == 1'b1) ? 2'b10 : 2'b11; |
end |
end |
endgenerate |
|
generate |
begin : level_generation_begin |
genvar i; |
for (i = 1; i <= nr_levels - 1; i = i + 1) |
begin : level_generation |
//begin : v_levels_begin |
genvar j; |
for (j = 0; j <= max_pow_2/(2 ** (i + 2)) - 1; j = j + 1) |
begin : v_levels |
assign v_d[i][j] = v_q[i - 1][2*j+1] | v_q[i - 1][2*j]; |
end |
//end |
|
//begin : p_levels_begin |
// genvar j; |
for (j = 0; j <= max_pow_2/(2 ** (i + 2)) - 1; j = j + 1) |
begin : p_levels |
assign p_d[i][(i+2)*j+i+1] = (~(v_q[i - 1][2*j+1])); |
assign p_d[i][(i+2)*j+i : (i+2)*j] = (v_q[i - 1][2*j+1] == 1'b1) ? p_q[i - 1][j*(2*i+2)+2*i+1 : j*(2*i+2) + i + 1] : p_q[i - 1][j*(2*i+2)+i : j*(2*i+2)]; |
end |
//end |
end |
end |
endgenerate |
|
generate |
if (PIPELINE != 0) |
begin : pipeline_stages |
//begin : INSERTION_begin |
genvar i; |
for (i = 0; i <= nr_levels - 2; i = i + 1) |
begin : INSERTION |
if ((i + 1) % nr_levels/(PIPELINE + 1) == 0) |
begin : INS |
d_ff #(max_pow_2) P_Di(.clk(clk), .rst(rst), .d(p_d[i]), .q(p_q[i])); |
d_ff #(max_pow_2) V_Di(.clk(clk), .rst(rst), .d(v_d[i]), .q(v_q[i])); |
end |
|
if ((i + 1) % nr_levels/(PIPELINE + 1) != 0) |
begin : NO_INS |
assign p_q[i] = p_d[i]; |
assign v_q[i] = v_d[i]; |
end |
end |
//end |
assign p_q[nr_levels - 1] = p_d[nr_levels - 1]; |
assign v_q[nr_levels - 1] = v_d[nr_levels - 1]; |
end |
endgenerate |
|
generate |
if (PIPELINE == 0) |
begin : no_pipeline |
//begin : xhdl4 |
genvar i; |
for (i = 0; i <= nr_levels - 1; i = i + 1) |
begin : NO_INSERTION |
assign p_q[i] = p_d[i]; |
assign v_q[i] = v_d[i]; |
end |
//end |
end |
endgenerate |
|
assign lzc[size_lz - 1:0] = p_q[nr_levels - 1][size_lz - 1:0]; |
|
generate |
begin : lz_ovf_begin |
genvar i; |
for (i = 0; i <= size_lz - 1; i = i + 1) |
begin : lz_ovf |
assign lz[i] = lzc[i] & ((~ovf)); |
end |
end |
endgenerate |
|
endmodule |
/DualPathFPAdder/FarPath.v
0,0 → 1,72
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 00:31:57 11/19/2013 |
// Design Name: |
// Module Name: FarPath |
// Project Name: |
// Target Devices: |
// Tool versions: |
|
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module FarPath #( parameter size_in_mantissa = 24, //1.M |
parameter size_out_mantissa = 24, |
parameter size_exponent = 8, |
parameter pipeline = 0, |
parameter pipeline_pos = 0, // 8 bits |
parameter size_counter = 5, //log2(size_mantissa) + 1 = 5) |
parameter double_size_counter = size_counter + 1, |
parameter double_size_mantissa = size_in_mantissa + size_in_mantissa) |
|
( input eff_op, |
input [size_in_mantissa-1 :0] m_a_number, |
input [size_in_mantissa-1 :0] m_b_number, |
input [size_exponent - 1 : 0] e_a_number, |
input [size_exponent - 1 : 0] e_b_number, |
output[size_out_mantissa-1:0] resulted_m_o, |
output[size_exponent - 1 : 0] resulted_e_o); |
|
wire [double_size_mantissa:0] unnormalized_mantissa; |
wire [7:0] adjust_mantissa; |
wire [double_size_mantissa:0] normalized_mantissa; |
|
wire dummy_bit; |
|
//compute unnormalized_mantissa |
assign unnormalized_mantissa = (eff_op)? ((m_a_number > m_b_number)? (m_a_number - m_b_number) : (m_b_number - m_a_number)) : |
m_a_number + m_b_number; |
|
assign adjust_mantissa = unnormalized_mantissa[double_size_mantissa]? 8'd0 : |
unnormalized_mantissa[double_size_mantissa-1]? 2'd1 : 8'd2; |
|
//compute shifting over unnormalized_mantissa |
shifter #( .INPUT_SIZE(double_size_mantissa+1), |
.SHIFT_SIZE(size_exponent), |
.OUTPUT_SIZE(double_size_mantissa+2), |
.DIRECTION(1'b1), |
.PIPELINE(pipeline), |
.POSITION(pipeline_pos)) |
unnormalized_no_shifter_instance(.a(unnormalized_mantissa), |
.arith(1'b0), |
.shft(adjust_mantissa), |
.shifted_a({normalized_mantissa, dummy_bit})); |
|
//instantiate rounding_component |
rounding #( .SIZE_MOST_S_MANTISSA(size_out_mantissa), |
.SIZE_LEAST_S_MANTISSA(size_out_mantissa + 2'd1)) |
rounding_instance( .unrounded_mantissa(normalized_mantissa[double_size_mantissa : double_size_mantissa - size_out_mantissa + 1]), |
.dummy_bits(normalized_mantissa[double_size_mantissa - size_out_mantissa: 0]), |
.rounded_mantissa(resulted_m_o)); |
|
assign resulted_e_o = (e_a_number > e_b_number)? (e_a_number + 1 - adjust_mantissa):(e_b_number + 1 - adjust_mantissa); |
|
endmodule |
/DualPathFPAdder/DualPathFPAdder.v
0,0 → 1,146
`timescale 1ns / 1ps |
////////////////////////////////////////////////////////////////////////////////// |
// Company: |
// Engineer: |
// |
// Create Date: 00:31:28 11/19/2013 |
// Design Name: |
// Module Name: DualPathFPAdder |
// Project Name: |
// Target Devices: |
// Tool versions: |
|
// |
// Dependencies: |
// |
// Revision: |
// Revision 0.01 - File Created |
// Additional Comments: |
// |
////////////////////////////////////////////////////////////////////////////////// |
module DualPathFPAdder #( parameter size_mantissa = 24, //1.M |
parameter size_exponent = 8, |
parameter size_exception_field = 2, |
parameter size_counter = 5, //log2(size_mantissa) + 1 = 5) |
parameter [size_exception_field - 1 : 0] zero = 0, //00 |
parameter [size_exception_field - 1 : 0] normal_number= 1, //01 |
parameter [size_exception_field - 1 : 0] infinity = 2, //10 |
parameter [size_exception_field - 1 : 0] NaN = 3, //11 |
parameter pipeline = 0, |
parameter pipeline_pos = 0, // 8 bits |
parameter double_size_mantissa = size_mantissa + size_mantissa, |
parameter double_size_counter = size_counter + 1, |
parameter size = size_mantissa + size_exponent + size_exception_field) |
|
(sub, a_number_i, b_number_i, resulted_number_o); |
input sub; |
input [size - 1 : 0] a_number_i; |
input [size - 1 : 0] b_number_i; |
output[size - 1 : 0] resulted_number_o; |
|
wire [size_mantissa - 1 : 0] m_a_number, m_b_number; |
wire [size_exponent - 1 : 0] e_a_number, e_b_number; |
wire s_a_number, s_b_number; |
wire [size_exception_field - 1 : 0] sp_case_a_number, sp_case_b_number; |
|
wire [size_exponent - 1 : 0] exp_difference; |
wire [size_exponent - 1 : 0] modify_exp_a, modify_exp_b; |
wire [double_size_mantissa - 1 : 0] shifted_m_a, shifted_m_b; |
|
wire [size_mantissa-1 : 0] fp_resulted_m_o, cp_resulted_m_o; |
wire [size_exponent-1 : 0] fp_resulted_e_o, cp_resulted_e_o; |
|
wire resulted_sign; |
wire [size_exception_field - 1 : 0] resulted_exception_field; |
|
assign m_a_number = {1'b1, a_number_i[size_mantissa - 2 :0]}; |
assign m_b_number = {1'b1, b_number_i[size_mantissa - 2 :0]}; |
assign e_a_number = a_number_i[size_mantissa + size_exponent - 1 : size_mantissa - 1]; |
assign e_b_number = b_number_i[size_mantissa + size_exponent - 1 : size_mantissa - 1]; |
assign s_a_number = a_number_i[size - size_exception_field - 1]; |
assign s_b_number = b_number_i[size - size_exception_field - 1]; |
assign sp_case_a_number = a_number_i[size - 1 : size - size_exception_field]; |
assign sp_case_b_number = b_number_i[size - 1 : size - size_exception_field]; |
|
//find the difference between exponents |
assign exp_difference = (e_a_number > e_b_number)? (e_a_number - e_b_number) : (e_b_number - e_a_number); |
assign {modify_exp_a, modify_exp_b} = (e_a_number > e_b_number)? {8'd0, exp_difference} : {exp_difference, 8'd0}; |
|
//shift the right mantissa |
shifter #( .INPUT_SIZE(size_mantissa), |
.SHIFT_SIZE(size_exponent), |
.OUTPUT_SIZE(double_size_mantissa), |
.DIRECTION(1'b0), |
.PIPELINE(pipeline), |
.POSITION(pipeline_pos)) |
m_a_shifter_instance( .a(m_a_number), |
.arith(1'b0), |
.shft(modify_exp_a), |
.shifted_a(shifted_m_a)); |
|
shifter #( .INPUT_SIZE(size_mantissa), |
.SHIFT_SIZE(size_exponent), |
.OUTPUT_SIZE(double_size_mantissa), |
.DIRECTION(1'b0), |
.PIPELINE(pipeline), |
.POSITION(pipeline_pos)) |
m_b_shifter_instance( .a(m_b_number), |
.arith(1'b0), |
.shft(modify_exp_b), |
.shifted_a(shifted_m_b)); |
|
//istantiate effective_operation_component |
effective_op effective_op_instance( .a_sign(s_a_number), .b_sign(s_b_number), .sub(sub), .eff_op(eff_op)); |
|
|
|
//instantiate special_cases component |
special_cases #( .size_exception_field(size_exception_field), |
.zero(zero), |
.normal_number(normal_number), |
.infinity(infinity), |
.NaN(NaN)) |
special_cases_instance ( .sp_case_a_number(sp_case_a_number), |
.sp_case_b_number(sp_case_b_number), |
.sp_case_result_o(resulted_exception_field)); |
|
//instantiate FarPath component |
FarPath #( .size_in_mantissa(double_size_mantissa), |
.size_out_mantissa(size_mantissa), |
.size_exponent(size_exponent), |
.pipeline(pipeline), |
.pipeline_pos(pipeline_pos), |
.size_counter(size_counter), |
.double_size_counter(double_size_counter), |
.double_size_mantissa(double_size_mantissa)) |
FarPath_instance ( .eff_op(eff_op), |
.m_a_number(shifted_m_a), |
.m_b_number(shifted_m_b), |
.e_a_number(e_a_number), |
.e_b_number(e_b_number), |
.resulted_m_o(fp_resulted_m_o), |
.resulted_e_o(fp_resulted_e_o)); |
|
|
//instantiate ClosePath component |
ClosePath #(.size_in_mantissa(double_size_mantissa), |
.size_out_mantissa(size_mantissa), |
.size_exponent(size_exponent), |
.pipeline(pipeline), |
.pipeline_pos(pipeline_pos), |
.size_counter(size_counter), |
.double_size_counter(double_size_counter), |
.double_size_mantissa(double_size_mantissa)) |
ClosePath_instance( .eff_op(eff_op), |
.m_a_number(shifted_m_a), |
.m_b_number(shifted_m_b), |
.e_a_number(e_a_number), |
.e_b_number(e_b_number), |
.resulted_m_o(cp_resulted_m_o), |
.resulted_e_o(cp_resulted_e_o)); |
|
assign resulted_sign = (eff_op)? ((shifted_m_a > shifted_m_b)? s_a_number : ~s_a_number) : s_a_number; |
|
assign resulted_number_o = (exp_difference > 1)? {resulted_exception_field, resulted_sign, fp_resulted_e_o, fp_resulted_m_o[size_mantissa-2 : 0]}: |
{resulted_exception_field, resulted_sign, cp_resulted_e_o, cp_resulted_m_o[size_mantissa-2 : 0]}; |
endmodule |