| module pp_generation ( |
| Mant_a_DI, |
| Mant_b_DI, |
| Pp_index_DO |
| ); |
| parameter C_RM = 2; |
| parameter C_RM_NEAREST = 2'h0; |
| parameter C_RM_TRUNC = 2'h1; |
| parameter C_RM_PLUSINF = 2'h2; |
| parameter C_RM_MINUSINF = 2'h3; |
| parameter C_PC = 5; |
| parameter C_OP = 32; |
| parameter C_MANT = 23; |
| parameter C_EXP = 8; |
| parameter C_BIAS = 127; |
| parameter C_HALF_BIAS = 63; |
| parameter C_LEADONE_WIDTH = 7; |
| parameter C_MANT_PRENORM = C_MANT+1; |
| parameter C_EXP_ZERO = 8'h00; |
| parameter C_EXP_ONE = 8'h01; |
| parameter C_EXP_INF = 8'hff; |
| parameter C_MANT_ZERO = 23'h0; |
| parameter C_MANT_NAN = 23'h400000; |
| |
| parameter C_CMD = 4; |
| parameter C_FPU_ADD_CMD = 4'h0; |
| parameter C_FPU_SUB_CMD = 4'h1; |
| parameter C_FPU_MUL_CMD = 4'h2; |
| parameter C_FPU_DIV_CMD = 4'h3; |
| parameter C_FPU_I2F_CMD = 4'h4; |
| parameter C_FPU_F2I_CMD = 4'h5; |
| parameter C_FPU_SQRT_CMD = 4'h6; |
| parameter C_FPU_NOP_CMD = 4'h7; |
| parameter C_FPU_FMADD_CMD = 4'h8; |
| parameter C_FPU_FMSUB_CMD = 4'h9; |
| parameter C_FPU_FNMADD_CMD = 4'hA; |
| parameter C_FPU_FNMSUB_CMD = 4'hB; |
| parameter C_RM_NEAREST_MAX = 3'h4; |
| parameter C_EXP_PRENORM = C_EXP+2; |
| parameter C_MANT_ADDIN = C_MANT+4; |
| parameter C_MANT_ADDOUT = C_MANT+5; |
| parameter C_MANT_SHIFTIN = C_MANT+3; |
| parameter C_MANT_SHIFTED = C_MANT+4; |
| parameter C_MANT_INT = C_OP-1; |
| parameter C_INF = 32'h7fffffff; |
| parameter C_MINF = 32'h80000000; |
| parameter C_EXP_SHIFT = C_EXP_PRENORM; |
| parameter C_SHIFT_BIAS = 9'd127; |
| parameter C_UNKNOWN = 8'd157; |
| parameter C_PADMANT = 16'b0; |
| parameter C_MANT_NoHB_ZERO = 23'h0; |
| parameter C_MANT_PRENORM_IND = 6; |
| parameter F_QNAN =32'h7FC00000; |
| parameter C_FFLAG = 5; |
| input wire [C_MANT:0] Mant_a_DI; |
| input wire [C_MANT:0] Mant_b_DI; |
| output wire [(((2 * C_MANT) + 2) >= 0 ? (13 * ((2 * C_MANT) + 3)) - 1 : (13 * (1 - ((2 * C_MANT) + 2))) + ((2 * C_MANT) + 1)):(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2)] Pp_index_DO; |
| wire Sel_xnor_S; |
| wire [C_MANT + 5:0] Mant_b_D; |
| assign Mant_b_D = {2'b00, Mant_b_DI, 2'b00}; |
| wire [12:0] Sel_1x_S; |
| wire [12:0] Sel_2x_S; |
| wire [12:0] Sel_sign_S; |
| genvar i; |
| generate |
| for (i = 1; i <= 13; i = i + 1) begin : genblk1 |
| booth_encoder booth_encoding( |
| .Booth_b_DI(Mant_b_D[(2 * i) + 1:(2 * i) - 1]), |
| .Sel_1x_SO(Sel_1x_S[i - 1]), |
| .Sel_2x_SO(Sel_2x_S[i - 1]), |
| .Sel_sign_SO(Sel_sign_S[i - 1]) |
| ); |
| end |
| endgenerate |
| wire [C_MANT + 2:0] Mant_a_D; |
| assign Mant_a_D = {Mant_a_DI, 1'b0}; |
| wire [((C_MANT + 1) >= 0 ? (13 * (C_MANT + 2)) - 1 : (13 * (1 - (C_MANT + 1))) + C_MANT):((C_MANT + 1) >= 0 ? 0 : C_MANT + 1)] Booth_pp_D; |
| genvar l; |
| genvar j; |
| generate |
| for (l = 1; l <= 13; l = l + 1) begin : genblk2 |
| for (j = 1; j <= (C_MANT + 2); j = j + 1) begin : genblk1 |
| booth_selector booth_selection( |
| .Booth_a_DI(Mant_a_D[j:j - 1]), |
| .Sel_1x_SI(Sel_1x_S[l - 1]), |
| .Sel_2x_SI(Sel_2x_S[l - 1]), |
| .Sel_sign_SI(Sel_sign_S[l - 1]), |
| .Booth_pp_DO(Booth_pp_D[((l - 1) * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))) + ((C_MANT + 1) >= 0 ? j - 1 : (C_MANT + 1) - (j - 1))]) |
| ); |
| end |
| end |
| endgenerate |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2)+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {21'h000000, ~Sel_sign_S[0], Sel_sign_S[0], Sel_sign_S[0], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1)+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))]}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {21'b000000000000000000001, ~Sel_sign_S[1], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[0]}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (2 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {19'b0000000000000000001, ~Sel_sign_S[2], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (2 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[1], 2'h0}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (3 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {17'b00000000000000001, ~Sel_sign_S[3], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (3 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[2], 4'h0}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (4 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {15'b000000000000001, ~Sel_sign_S[4], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (4 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[3], 6'h00}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (5 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {13'b0000000000001, ~Sel_sign_S[5], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (5 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[4], 8'h00}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (6 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {11'b00000000001, ~Sel_sign_S[6], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (6 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[5], 10'h000}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (7 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {9'b000000001, ~Sel_sign_S[7], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (7 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[6], 12'h000}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (8 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {7'b0000001, ~Sel_sign_S[8], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (8 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[7], 14'h0000}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (9 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {5'b00001, ~Sel_sign_S[9], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (9 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[8], 16'h0000}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (10 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {3'b001, ~Sel_sign_S[10], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (10 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[9], 18'h00000}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (11 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {1'b1, ~Sel_sign_S[11], Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (11 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[10], 20'h00000}; |
| assign Pp_index_DO[(((2 * C_MANT) + 2) >= 0 ? 0 : (2 * C_MANT) + 2) + (12 * (((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2)))+:(((2 * C_MANT) + 2) >= 0 ? (2 * C_MANT) + 3 : 1 - ((2 * C_MANT) + 2))] = {Booth_pp_D[((C_MANT + 1) >= 0 ? 0 : C_MANT + 1) + (12 * ((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1)))+:((C_MANT + 1) >= 0 ? C_MANT + 2 : 1 - (C_MANT + 1))], 1'b0, Sel_sign_S[11], 22'h000000}; |
| endmodule |