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APS/Labs/05. Main decoder/tb_decoder_riscv.sv
Andrei Solodovnikov f4c0960704 Initial commit
2023-09-07 17:06:55 +03:00

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Systemverilog
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`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company: MIET
// Engineer: Nikita Bulavin
//
// Create Date:
// Design Name:
// Module Name: tb_decoder_riscv
// Project Name: RISCV_practicum
// Target Devices: Nexys A7-100T
// Tool Versions:
// Description: tb for decoder riscv
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
//
//////////////////////////////////////////////////////////////////////////////////
import riscv_pkg::*;
module tb_decoder_riscv();
parameter delay = 4;
parameter cycle = 200; // per one opcode
reg [31:0] instr;
wire [1:0] a_sel;
wire [2:0] b_sel;
wire [ALU_OP_WIDTH-1:0] alu_op;
wire mem_req;
wire mem_we;
wire [2:0] mem_size;
wire gpr_we_a;
wire wb_src_sel;
wire illegal_instr;
wire branch;
wire jal;
wire jalr;
reg [1:0] a_sel_miss;
reg [2:0] b_sel_miss;
reg [ALU_OP_WIDTH-1:0] alu_op_miss;
reg mem_req_miss;
reg mem_we_miss;
reg [2:0] mem_size_miss;
reg gpr_we_a_miss;
reg wb_src_sel_miss;
reg illegal_miss;
reg branch_miss;
reg jal_miss;
reg jalr_miss;
string opcode_type;
string instr_type;
decoder_riscv dut (
.fetched_instr_i (instr),
.a_sel_o (a_sel),
.b_sel_o (b_sel),
.alu_op_o (alu_op),
.mem_req_o (mem_req),
.mem_we_o (mem_we),
.mem_size_o (mem_size),
.gpr_we_a_o (gpr_we_a),
.wb_src_sel_o (wb_src_sel),
.illegal_instr_o (illegal_instr),
.branch_o (branch),
.jal_o (jal),
.jalr_o (jalr)
);
decoder_riscv_ref grm(.fetched_instr_i (instr));
wire [4:0] opcode;
assign opcode = instr[6:2];
always @(*) begin
case (opcode)
LUI_OPCODE, AUIPC_OPCODE, JAL_OPCODE:
instr_type = $sformatf("%020b %05b %07b ", instr[31:12], instr[11:7], instr[6:0]);
JALR_OPCODE, LOAD_OPCODE, OP_IMM_OPCODE, SYSTEM_OPCODE:
instr_type = $sformatf("%012b %05b %03b %05b %07b ", instr[31:20], instr[19:15], instr[14:12], instr[11:7], instr[6:0]);
BRANCH_OPCODE, STORE_OPCODE, OP_OPCODE:
instr_type = $sformatf("%07b %05b %05b %03b %05b %07b", instr[31:25], instr[24:20], instr[19:15], instr[14:12], instr[11:7], instr[6:0]);
MISC_MEM_OPCODE:
instr_type = $sformatf("%017b %03b %05b %07b ", instr[31:15], instr[14:12], instr[11:7], instr[6:0]);
default:
instr_type = $sformatf("%032b ", instr);
endcase
end
always @(*) begin
a_sel_miss = 'b0;
b_sel_miss = 'b0;
alu_op_miss = 'b0;
mem_req_miss = 'b0;
mem_we_miss = 'b0;
mem_size_miss = 'b0;
gpr_we_a_miss = 'b0;
wb_src_sel_miss = 'b0;
illegal_miss = 'b0;
branch_miss = 'b0;
jal_miss = 'b0;
jalr_miss = 'b0;
case (opcode)
LOAD_OPCODE, STORE_OPCODE:
begin
a_sel_miss = (grm.ex_op_a_sel_o !== a_sel) & !illegal_instr;
b_sel_miss = (grm.ex_op_b_sel_o !== b_sel) & !illegal_instr;
alu_op_miss = (grm.alu_op_o !== alu_op) & !illegal_instr;
mem_req_miss = grm.mem_req_o !== mem_req;
mem_we_miss = grm.mem_we_o !== mem_we;
mem_size_miss = (grm.mem_size_o !== mem_size) & !illegal_instr;
gpr_we_a_miss = grm.gpr_we_a_o !== gpr_we_a;
wb_src_sel_miss = (grm.wb_src_sel_o !== wb_src_sel) & !illegal_instr;
illegal_miss = grm.illegal_instr_o !== illegal_instr;
branch_miss = grm.branch_o !== branch;
jal_miss = grm.jal_o !== jal;
jalr_miss = grm.jalr_o !== jalr;
end
JAL_OPCODE, JALR_OPCODE,
AUIPC_OPCODE,
OP_IMM_OPCODE, OP_OPCODE:
begin
a_sel_miss = (grm.ex_op_a_sel_o !== a_sel) & !illegal_instr;
b_sel_miss = (grm.ex_op_b_sel_o !== b_sel) & !illegal_instr;
alu_op_miss = (grm.alu_op_o !== alu_op) & !illegal_instr;
mem_req_miss = grm.mem_req_o !== mem_req;
mem_we_miss = grm.mem_we_o !== mem_we;
//mem_size_miss = (grm.mem_size_o !== mem_size) & !illegal_instr;
gpr_we_a_miss = grm.gpr_we_a_o !== gpr_we_a;
wb_src_sel_miss = (grm.wb_src_sel_o !== wb_src_sel) & !illegal_instr;
illegal_miss = grm.illegal_instr_o !== illegal_instr;
branch_miss = grm.branch_o !== branch;
jal_miss = grm.jal_o !== jal;
jalr_miss = grm.jalr_o !== jalr;
end
BRANCH_OPCODE:
begin
a_sel_miss = (grm.ex_op_a_sel_o !== a_sel) & !illegal_instr;
b_sel_miss = (grm.ex_op_b_sel_o !== b_sel) & !illegal_instr;
alu_op_miss = (grm.alu_op_o !== alu_op) & !illegal_instr;
mem_req_miss = grm.mem_req_o !== mem_req;
mem_we_miss = grm.mem_we_o !== mem_we;
//mem_size_miss = (grm.mem_size_o !== mem_size) & !illegal_instr;
gpr_we_a_miss = grm.gpr_we_a_o !== gpr_we_a;
//wb_src_sel_miss = (grm.wb_src_sel_o !== wb_src_sel) & !illegal_instr;
illegal_miss = grm.illegal_instr_o !== illegal_instr;
branch_miss = grm.branch_o !== branch;
jal_miss = grm.jal_o !== jal;
jalr_miss = grm.jalr_o !== jalr;
end
LUI_OPCODE: begin
a_sel_miss = (grm.ex_op_a_sel_o !== a_sel) & !illegal_instr;
b_sel_miss = (grm.ex_op_b_sel_o !== b_sel) & !illegal_instr;
alu_op_miss = ((alu_op !== ALU_ADD)&(alu_op !== ALU_XOR)&(alu_op !== ALU_OR)) & !illegal_instr;
mem_req_miss = grm.mem_req_o !== mem_req;
mem_we_miss = grm.mem_we_o !== mem_we;
//mem_size_miss = (grm.mem_size_o !== mem_size) & !illegal_instr;
gpr_we_a_miss = grm.gpr_we_a_o !== gpr_we_a;
wb_src_sel_miss = (grm.wb_src_sel_o !== wb_src_sel) & !illegal_instr;
illegal_miss = grm.illegal_instr_o !== illegal_instr;
branch_miss = grm.branch_o !== branch;
jal_miss = grm.jal_o !== jal;
jalr_miss = grm.jalr_o !== jalr;
end
default: //MISC_MEM_OPCODE, SYSTEM_OPCODE and other
begin
//a_sel_miss = grm.ex_op_a_sel_o !== a_sel;
//b_sel_miss = grm.ex_op_b_sel_o !== b_sel;
//alu_op_miss = grm.alu_op_o !== alu_op;
mem_req_miss = grm.mem_req_o !== mem_req;
mem_we_miss = grm.mem_we_o !== mem_we;
//mem_size_miss = grm.mem_size_o !== mem_size;
gpr_we_a_miss = grm.gpr_we_a_o !== gpr_we_a;
//wb_src_sel_miss = grm.wb_src_sel_o !== wb_src_sel;
illegal_miss = grm.illegal_instr_o !== illegal_instr;
branch_miss = grm.branch_o !== branch;
jal_miss = grm.jal_o !== jal;
jalr_miss = grm.jalr_o !== jalr;
end
endcase
end
reg [4:0] X;
reg [$clog2(cycle+1)-1:0] V;
integer error;
initial begin
$timeformat(-9, 2, " ns", 3);
error = 0;
end
initial begin
$display( "\nStart test: \n\n==========================\nCLICK THE BUTTON 'Run All'\n==========================\n"); $stop();
for (V=0; V<cycle/10; V=V+1) begin // illegal по 11 в конце opcode
instr[1:0] = $random;
instr[6:2] = {1'b0,V[1:0],2'b0};
instr[31:7] = 'b0;
#delay;
end
for (V=0; V<cycle; V=V+1) begin // illegal по OP_OPCODE funct7
instr[11:0] = {5'b0,OP_OPCODE,2'b11};
instr[14:12] = V;
instr[24:15] = $random;
instr[31:25] = 2**($random % 7);
#delay;
end
for (V=0; V<cycle; V=V+1) begin // illegal по SYSTEM_OPCODE
instr[6:0] = {SYSTEM_OPCODE,2'b11};
instr[31:7] = 2**($random % 25);
#delay;
end
for (X=0; X<2**5-1; X=X+1) begin
for (V=0; V<cycle; V=V+1) begin
instr[1:0] = 2'b11;
instr[6:2] = X;
instr[31:7] = $random;
#delay;
end
end
for (V=0; V<cycle; V=V+1) begin
instr = $random;
#delay;
end
if (|error)
$display ("FAIL!\nThere are errors in the design, number of errors: %d", error);
else
$display ("\ndecoder SUCCESS!!!\n");
$finish;
end
always begin
@(instr);
#2;
if (illegal_miss)begin
$display("Output 'illegal_instr_o' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",illegal_instr, grm.illegal_instr_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (~illegal_miss) begin
if (a_sel_miss)begin
$display ("Output 'ex_op_a_sel_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",a_sel, grm.ex_op_a_sel_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (b_sel_miss)begin
$display ("Output 'ex_op_b_sel_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",b_sel, grm.ex_op_b_sel_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (alu_op_miss)begin
$display ("Output 'alu_op_o ' is incorrect(%b instead of %b), instruction: %s %s, time: %t",alu_op, grm.alu_op_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (mem_we_miss)begin
$display ("Output 'mem_we_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",mem_we, grm.mem_we_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (mem_size_miss)begin
$display ("Output 'mem_size_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",mem_size, grm.mem_size_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (mem_req_miss)begin
$display ("Output 'mem_req_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",mem_req, grm.mem_req_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (wb_src_sel_miss)begin
$display ("Output 'wb_src_sel_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",wb_src_sel, grm.wb_src_sel_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (gpr_we_a_miss)begin
$display ("Output 'gpr_we_a_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",gpr_we_a, grm.gpr_we_a_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (branch_miss)begin
$display ("Output 'branch_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",branch, grm.branch_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (jal_miss)begin
$display ("Output 'jal_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",jal, grm.jal_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
if (jalr_miss)begin
$display ("Output 'jalr_o ' is incorrect( %b instead of %b ), instruction: %s %s, time: %t",jalr, grm.jalr_o, instr_type, opcode_type, $time);
error = error + 1'b1;
end
end
if ((a_sel != OP_A_RS1) &
(a_sel != OP_A_CURR_PC) &
(a_sel != OP_A_ZERO)) begin
$display ("Output 'ex_op_a_sel_o' must always have a legal value, instruction: %s %s, time: %t", instr_type, opcode_type, $time);
error = error + 1;
end
if ((b_sel != OP_B_RS2) &
(b_sel != OP_B_IMM_I) &
(b_sel != OP_B_IMM_U) &
(b_sel != OP_B_IMM_S) &
(b_sel != OP_B_INCR)) begin
$display ("Output 'ex_op_b_sel_o' must always have a legal value, instruction: %s %s, time: %t", instr_type, opcode_type, $time);
error = error + 1;
end
if ((alu_op != ALU_ADD) & (alu_op != ALU_SUB) &
(alu_op != ALU_XOR) & (alu_op != ALU_OR) &
(alu_op != ALU_AND) & (alu_op != ALU_SRA) &
(alu_op != ALU_SRL) & (alu_op != ALU_SLL) &
(alu_op != ALU_LTS) & (alu_op != ALU_LTU) &
(alu_op != ALU_GES) & (alu_op != ALU_GEU) &
(alu_op != ALU_EQ) & (alu_op != ALU_NE) &
(alu_op != ALU_SLTS) & (alu_op != ALU_SLTU)) begin
$display ("Output 'alu_op_o' must always have a legal value, instruction: %s %s, time: %t", instr_type, opcode_type, $time);
error = error + 1;
end
if ((mem_size != LDST_B) &
(mem_size != LDST_H) &
(mem_size != LDST_W) &
(mem_size != LDST_BU) &
(mem_size != LDST_HU)) begin
$display ("Output 'mem_size_o' must always have a legal value, instruction: %s %s, time: %t", instr_type, opcode_type, $time);
error = error + 1;
end
if ((wb_src_sel != WB_EX_RESULT) &
(wb_src_sel != WB_LSU_DATA)) begin
$display ("Output 'wb_src_sel_o' must always have a legal value, instruction: %s %s, time: %t", instr_type, opcode_type, $time);
error = error + 1;
end
end
always begin
@(instr);
#1;
if(&instr[1:0])
case(opcode)
LUI_OPCODE: begin
opcode_type = "( LUI )";
end
AUIPC_OPCODE: begin
opcode_type = "( AUIPC )";
end
JAL_OPCODE: begin
opcode_type = "( JAL )";
end
JALR_OPCODE: begin
opcode_type = instr[14:12]? "( illegal_JALR )": "( JALR )";
end
BRANCH_OPCODE: begin
case(instr[14:12])
3'b000: opcode_type = "( BEQ )";
3'b001: opcode_type = "( BNE )";
3'b100: opcode_type = "( BLT )";
3'b101: opcode_type = "( BGE )";
3'b110: opcode_type = "( BLTU )";
3'b111: opcode_type = "( BGEU )";
default: opcode_type= "(illegal_BRANCH)";
endcase
end
LOAD_OPCODE: begin
case(instr[14:12])
3'b000: opcode_type = "( LB )";
3'b001: opcode_type = "( LH )";
3'b010: opcode_type = "( LW )";
3'b100: opcode_type = "( LBU )";
3'b101: opcode_type = "( LHU )";
default: opcode_type= "( illegal_LOAD )";
endcase
end
STORE_OPCODE: begin
case(instr[14:12])
3'b000: opcode_type = "( SB )";
3'b001: opcode_type = "( SH )";
3'b010: opcode_type = "( SW )";
default: opcode_type = "(illegal_STORE)";
endcase
end
OP_IMM_OPCODE: begin
case({2'b0,instr[14:12]})
ALU_ADD : opcode_type = "( ADDI )";
ALU_XOR : opcode_type = "( XORI )";
ALU_OR : opcode_type = "( ORI )";
ALU_AND : opcode_type = "( ANDI )";
ALU_SRL : opcode_type = {instr[31],instr[29:25]}? "(illegal_OP_IMM)": instr[30]? "( SRAI )": "( SRLI )";
ALU_SLL : opcode_type = instr[31:25]? "(illegal_OP_IMM)": "( SLLI )";
ALU_SLTS : opcode_type = "( SLTI )";
ALU_SLTU : opcode_type = "( SLTIU )";
default : opcode_type = "(illegal_OP_IMM)";
endcase
end
OP_OPCODE: begin
if(!instr[29:25])
case({instr[31:30],instr[14:12]})
ALU_ADD : opcode_type = "( ADD )";
ALU_SUB : opcode_type = "( SUB )";
ALU_XOR : opcode_type = "( XOR )";
ALU_OR : opcode_type = "( OR )";
ALU_AND : opcode_type = "( AND )";
ALU_SRA : opcode_type = "( SRA )";
ALU_SRL : opcode_type = "( SRL )";
ALU_SLL : opcode_type = "( SLL )";
ALU_SLTU : opcode_type = "( SLTU )";
default : opcode_type = "( illegal_OP )";
endcase
else opcode_type = "( illegal_OP )";
end
MISC_MEM_OPCODE: begin
opcode_type = instr[14:12]? "(illegal_FENCE )": "( FENCE )";
end
SYSTEM_OPCODE: begin
opcode_type = {instr[31:21], instr[19:7]}? "(illegal_SYSTEM)": instr[20]? "( EBREAK )": "( ECALL )";
end
default: opcode_type = "(illegal_opcode)";
endcase
else opcode_type = "(illegal_opcode)";
end
endmodule
`timescale 1 ps / 1 ps
(* STRUCTURAL_NETLIST = "yes" *)
module decoder_riscv_ref
(fetched_instr_i,
ex_op_a_sel_o,
ex_op_b_sel_o,
alu_op_o,
mem_req_o,
mem_we_o,
mem_size_o,
gpr_we_a_o,
wb_src_sel_o,
illegal_instr_o,
branch_o,
jal_o,
jalr_o);
input [31:0]fetched_instr_i;
output [1:0]ex_op_a_sel_o;
output [2:0]ex_op_b_sel_o;
output [4:0]alu_op_o;
output mem_req_o;
output mem_we_o;
output [2:0]mem_size_o;
output gpr_we_a_o;
output wb_src_sel_o;
output illegal_instr_o;
output branch_o;
output jal_o;
output jalr_o;
wire [3:0]\^alu_op_o ;
wire \alu_op_o[1]_INST_0_i_1_n_0 ;
wire \alu_op_o[3]_INST_0_i_1_n_0 ;
wire \alu_op_o[3]_INST_0_i_2_n_0 ;
wire \alu_op_o[3]_INST_0_i_3_n_0 ;
wire \alu_op_o[3]_INST_0_i_4_n_0 ;
wire branch_o;
wire branch_o_INST_0_i_1_n_0;
wire [1:0]ex_op_a_sel_o;
wire \ex_op_a_sel_o[0]_INST_0_i_1_n_0 ;
wire \ex_op_a_sel_o[0]_INST_0_i_2_n_0 ;
wire \ex_op_a_sel_o[1]_INST_0_i_1_n_0 ;
wire [2:0]ex_op_b_sel_o;
wire \ex_op_b_sel_o[0]_INST_0_i_1_n_0 ;
wire \ex_op_b_sel_o[0]_INST_0_i_2_n_0 ;
wire \ex_op_b_sel_o[0]_INST_0_i_3_n_0 ;
wire \ex_op_b_sel_o[0]_INST_0_i_4_n_0 ;
wire \ex_op_b_sel_o[0]_INST_0_i_5_n_0 ;
wire \ex_op_b_sel_o[0]_INST_0_i_6_n_0 ;
wire \ex_op_b_sel_o[1]_INST_0_i_1_n_0 ;
wire \ex_op_b_sel_o[1]_INST_0_i_2_n_0 ;
wire \ex_op_b_sel_o[2]_INST_0_i_1_n_0 ;
wire [31:0]fetched_instr_i;
wire gpr_we_a_o;
wire gpr_we_a_o_INST_0_i_1_n_0;
wire illegal_instr_o;
wire illegal_instr_o_INST_0_i_10_n_0;
wire illegal_instr_o_INST_0_i_1_n_0;
wire illegal_instr_o_INST_0_i_2_n_0;
wire illegal_instr_o_INST_0_i_3_n_0;
wire illegal_instr_o_INST_0_i_4_n_0;
wire illegal_instr_o_INST_0_i_5_n_0;
wire illegal_instr_o_INST_0_i_6_n_0;
wire illegal_instr_o_INST_0_i_7_n_0;
wire illegal_instr_o_INST_0_i_8_n_0;
wire illegal_instr_o_INST_0_i_9_n_0;
wire jal_o;
wire jalr_o;
wire mem_req_o;
wire [2:0]mem_size_o;
wire \mem_size_o[0]_INST_0_i_1_n_0 ;
wire mem_we_o;
wire wb_src_sel_o;
assign alu_op_o[4] = branch_o;
assign alu_op_o[3:0] = \^alu_op_o [3:0];
LUT6 #(
.INIT(64'hA0E0A00000000000))
\alu_op_o[0]_INST_0
(.I0(\alu_op_o[1]_INST_0_i_1_n_0 ),
.I1(\alu_op_o[3]_INST_0_i_3_n_0 ),
.I2(fetched_instr_i[12]),
.I3(fetched_instr_i[6]),
.I4(fetched_instr_i[4]),
.I5(branch_o_INST_0_i_1_n_0),
.O(\^alu_op_o [0]));
LUT6 #(
.INIT(64'hA0E0A00000000000))
\alu_op_o[1]_INST_0
(.I0(\alu_op_o[1]_INST_0_i_1_n_0 ),
.I1(\alu_op_o[3]_INST_0_i_3_n_0 ),
.I2(fetched_instr_i[13]),
.I3(fetched_instr_i[6]),
.I4(fetched_instr_i[4]),
.I5(branch_o_INST_0_i_1_n_0),
.O(\^alu_op_o [1]));
(* SOFT_HLUTNM = "soft_lutpair4" *)
LUT4 #(
.INIT(16'h00D0))
\alu_op_o[1]_INST_0_i_1
(.I0(fetched_instr_i[13]),
.I1(fetched_instr_i[14]),
.I2(fetched_instr_i[5]),
.I3(fetched_instr_i[4]),
.O(\alu_op_o[1]_INST_0_i_1_n_0 ));
LUT6 #(
.INIT(64'h6240000000000000))
\alu_op_o[2]_INST_0
(.I0(fetched_instr_i[6]),
.I1(fetched_instr_i[4]),
.I2(\alu_op_o[3]_INST_0_i_3_n_0 ),
.I3(fetched_instr_i[5]),
.I4(branch_o_INST_0_i_1_n_0),
.I5(fetched_instr_i[14]),
.O(\^alu_op_o [2]));
LUT6 #(
.INIT(64'hBAAAAAAAAAAAAAAA))
\alu_op_o[3]_INST_0
(.I0(branch_o),
.I1(\alu_op_o[3]_INST_0_i_1_n_0 ),
.I2(branch_o_INST_0_i_1_n_0),
.I3(fetched_instr_i[30]),
.I4(\alu_op_o[3]_INST_0_i_2_n_0 ),
.I5(\alu_op_o[3]_INST_0_i_3_n_0 ),
.O(\^alu_op_o [3]));
LUT6 #(
.INIT(64'hFB00FBFBFB00FBBB))
\alu_op_o[3]_INST_0_i_1
(.I0(\ex_op_b_sel_o[0]_INST_0_i_6_n_0 ),
.I1(fetched_instr_i[5]),
.I2(fetched_instr_i[30]),
.I3(fetched_instr_i[13]),
.I4(fetched_instr_i[12]),
.I5(fetched_instr_i[14]),
.O(\alu_op_o[3]_INST_0_i_1_n_0 ));
(* SOFT_HLUTNM = "soft_lutpair7" *)
LUT2 #(
.INIT(4'h2))
\alu_op_o[3]_INST_0_i_2
(.I0(fetched_instr_i[4]),
.I1(fetched_instr_i[6]),
.O(\alu_op_o[3]_INST_0_i_2_n_0 ));
(* SOFT_HLUTNM = "soft_lutpair0" *)
LUT4 #(
.INIT(16'h1F10))
\alu_op_o[3]_INST_0_i_3
(.I0(\ex_op_b_sel_o[0]_INST_0_i_6_n_0 ),
.I1(\alu_op_o[3]_INST_0_i_4_n_0 ),
.I2(fetched_instr_i[5]),
.I3(\ex_op_b_sel_o[0]_INST_0_i_2_n_0 ),
.O(\alu_op_o[3]_INST_0_i_3_n_0 ));
(* SOFT_HLUTNM = "soft_lutpair3" *)
LUT4 #(
.INIT(16'h8AA8))
\alu_op_o[3]_INST_0_i_4
(.I0(fetched_instr_i[30]),
.I1(fetched_instr_i[13]),
.I2(fetched_instr_i[12]),
.I3(fetched_instr_i[14]),
.O(\alu_op_o[3]_INST_0_i_4_n_0 ));
LUT6 #(
.INIT(64'h008A000000000000))
branch_o_INST_0
(.I0(branch_o_INST_0_i_1_n_0),
.I1(fetched_instr_i[14]),
.I2(fetched_instr_i[13]),
.I3(fetched_instr_i[4]),
.I4(fetched_instr_i[5]),
.I5(fetched_instr_i[6]),
.O(branch_o));
(* SOFT_HLUTNM = "soft_lutpair1" *)
LUT4 #(
.INIT(16'h0008))
branch_o_INST_0_i_1
(.I0(fetched_instr_i[1]),
.I1(fetched_instr_i[0]),
.I2(fetched_instr_i[3]),
.I3(fetched_instr_i[2]),
.O(branch_o_INST_0_i_1_n_0));
LUT6 #(
.INIT(64'h0031000000000300))
\ex_op_a_sel_o[0]_INST_0
(.I0(\ex_op_a_sel_o[0]_INST_0_i_1_n_0 ),
.I1(\ex_op_a_sel_o[0]_INST_0_i_2_n_0 ),
.I2(fetched_instr_i[3]),
.I3(fetched_instr_i[4]),
.I4(fetched_instr_i[6]),
.I5(fetched_instr_i[5]),
.O(ex_op_a_sel_o[0]));
(* SOFT_HLUTNM = "soft_lutpair3" *)
LUT3 #(
.INIT(8'hFE))
\ex_op_a_sel_o[0]_INST_0_i_1
(.I0(fetched_instr_i[13]),
.I1(fetched_instr_i[12]),
.I2(fetched_instr_i[14]),
.O(\ex_op_a_sel_o[0]_INST_0_i_1_n_0 ));
(* SOFT_HLUTNM = "soft_lutpair6" *)
LUT3 #(
.INIT(8'h7F))
\ex_op_a_sel_o[0]_INST_0_i_2
(.I0(fetched_instr_i[2]),
.I1(fetched_instr_i[1]),
.I2(fetched_instr_i[0]),
.O(\ex_op_a_sel_o[0]_INST_0_i_2_n_0 ));
LUT6 #(
.INIT(64'h0200000000000000))
\ex_op_a_sel_o[1]_INST_0
(.I0(\ex_op_a_sel_o[1]_INST_0_i_1_n_0 ),
.I1(fetched_instr_i[6]),
.I2(fetched_instr_i[3]),
.I3(fetched_instr_i[2]),
.I4(fetched_instr_i[4]),
.I5(fetched_instr_i[5]),
.O(ex_op_a_sel_o[1]));
(* SOFT_HLUTNM = "soft_lutpair6" *)
LUT2 #(
.INIT(4'h8))
\ex_op_a_sel_o[1]_INST_0_i_1
(.I0(fetched_instr_i[0]),
.I1(fetched_instr_i[1]),
.O(\ex_op_a_sel_o[1]_INST_0_i_1_n_0 ));
LUT6 #(
.INIT(64'h0000000000002E22))
\ex_op_b_sel_o[0]_INST_0
(.I0(\ex_op_b_sel_o[0]_INST_0_i_1_n_0 ),
.I1(fetched_instr_i[4]),
.I2(fetched_instr_i[5]),
.I3(\ex_op_b_sel_o[0]_INST_0_i_2_n_0 ),
.I4(\ex_op_b_sel_o[0]_INST_0_i_3_n_0 ),
.I5(fetched_instr_i[2]),
.O(ex_op_b_sel_o[0]));
(* SOFT_HLUTNM = "soft_lutpair2" *)
LUT4 #(
.INIT(16'h0377))
\ex_op_b_sel_o[0]_INST_0_i_1
(.I0(fetched_instr_i[12]),
.I1(fetched_instr_i[13]),
.I2(fetched_instr_i[5]),
.I3(fetched_instr_i[14]),
.O(\ex_op_b_sel_o[0]_INST_0_i_1_n_0 ));
LUT6 #(
.INIT(64'hFFFF0F4FFFFFFF4F))
\ex_op_b_sel_o[0]_INST_0_i_2
(.I0(\ex_op_b_sel_o[0]_INST_0_i_4_n_0 ),
.I1(\ex_op_b_sel_o[0]_INST_0_i_5_n_0 ),
.I2(fetched_instr_i[12]),
.I3(fetched_instr_i[14]),
.I4(fetched_instr_i[13]),
.I5(\ex_op_b_sel_o[0]_INST_0_i_6_n_0 ),
.O(\ex_op_b_sel_o[0]_INST_0_i_2_n_0 ));
(* SOFT_HLUTNM = "soft_lutpair1" *)
LUT4 #(
.INIT(16'hFFF7))
\ex_op_b_sel_o[0]_INST_0_i_3
(.I0(fetched_instr_i[1]),
.I1(fetched_instr_i[0]),
.I2(fetched_instr_i[6]),
.I3(fetched_instr_i[3]),
.O(\ex_op_b_sel_o[0]_INST_0_i_3_n_0 ));
LUT3 #(
.INIT(8'hFE))
\ex_op_b_sel_o[0]_INST_0_i_4
(.I0(fetched_instr_i[30]),
.I1(fetched_instr_i[31]),
.I2(fetched_instr_i[29]),
.O(\ex_op_b_sel_o[0]_INST_0_i_4_n_0 ));
LUT4 #(
.INIT(16'h0001))
\ex_op_b_sel_o[0]_INST_0_i_5
(.I0(fetched_instr_i[25]),
.I1(fetched_instr_i[26]),
.I2(fetched_instr_i[28]),
.I3(fetched_instr_i[27]),
.O(\ex_op_b_sel_o[0]_INST_0_i_5_n_0 ));
LUT6 #(
.INIT(64'hFFFFFFFFFFFFFFFE))
\ex_op_b_sel_o[0]_INST_0_i_6
(.I0(fetched_instr_i[26]),
.I1(fetched_instr_i[25]),
.I2(fetched_instr_i[27]),
.I3(fetched_instr_i[28]),
.I4(fetched_instr_i[29]),
.I5(fetched_instr_i[31]),
.O(\ex_op_b_sel_o[0]_INST_0_i_6_n_0 ));
LUT6 #(
.INIT(64'hAAAEAEAEAAAAAAAA))
\ex_op_b_sel_o[1]_INST_0
(.I0(\ex_op_b_sel_o[1]_INST_0_i_1_n_0 ),
.I1(fetched_instr_i[5]),
.I2(fetched_instr_i[14]),
.I3(fetched_instr_i[13]),
.I4(fetched_instr_i[12]),
.I5(\ex_op_b_sel_o[1]_INST_0_i_2_n_0 ),
.O(ex_op_b_sel_o[1]));
LUT6 #(
.INIT(64'h0008000000000000))
\ex_op_b_sel_o[1]_INST_0_i_1
(.I0(fetched_instr_i[4]),
.I1(fetched_instr_i[2]),
.I2(fetched_instr_i[3]),
.I3(fetched_instr_i[6]),
.I4(fetched_instr_i[0]),
.I5(fetched_instr_i[1]),
.O(\ex_op_b_sel_o[1]_INST_0_i_1_n_0 ));
LUT6 #(
.INIT(64'h0000000000001000))
\ex_op_b_sel_o[1]_INST_0_i_2
(.I0(fetched_instr_i[2]),
.I1(fetched_instr_i[3]),
.I2(fetched_instr_i[0]),
.I3(fetched_instr_i[1]),
.I4(fetched_instr_i[6]),
.I5(fetched_instr_i[4]),
.O(\ex_op_b_sel_o[1]_INST_0_i_2_n_0 ));
LUT6 #(
.INIT(64'hB000000000000000))
\ex_op_b_sel_o[2]_INST_0
(.I0(fetched_instr_i[3]),
.I1(\ex_op_a_sel_o[0]_INST_0_i_1_n_0 ),
.I2(\ex_op_b_sel_o[2]_INST_0_i_1_n_0 ),
.I3(fetched_instr_i[2]),
.I4(fetched_instr_i[1]),
.I5(fetched_instr_i[0]),
.O(ex_op_b_sel_o[2]));
(* SOFT_HLUTNM = "soft_lutpair4" *)
LUT3 #(
.INIT(8'h40))
\ex_op_b_sel_o[2]_INST_0_i_1
(.I0(fetched_instr_i[4]),
.I1(fetched_instr_i[5]),
.I2(fetched_instr_i[6]),
.O(\ex_op_b_sel_o[2]_INST_0_i_1_n_0 ));
LUT6 #(
.INIT(64'hBBBBAAABBABAAAAB))
gpr_we_a_o_INST_0
(.I0(ex_op_b_sel_o[2]),
.I1(\ex_op_b_sel_o[0]_INST_0_i_3_n_0 ),
.I2(fetched_instr_i[2]),
.I3(gpr_we_a_o_INST_0_i_1_n_0),
.I4(fetched_instr_i[4]),
.I5(\alu_op_o[3]_INST_0_i_3_n_0 ),
.O(gpr_we_a_o));
(* SOFT_HLUTNM = "soft_lutpair2" *)
LUT4 #(
.INIT(16'hFEAA))
gpr_we_a_o_INST_0_i_1
(.I0(fetched_instr_i[5]),
.I1(fetched_instr_i[14]),
.I2(fetched_instr_i[12]),
.I3(fetched_instr_i[13]),
.O(gpr_we_a_o_INST_0_i_1_n_0));
LUT6 #(
.INIT(64'hF1F1F0F0F1F1F0FF))
illegal_instr_o_INST_0
(.I0(illegal_instr_o_INST_0_i_1_n_0),
.I1(fetched_instr_i[6]),
.I2(illegal_instr_o_INST_0_i_2_n_0),
.I3(fetched_instr_i[3]),
.I4(fetched_instr_i[4]),
.I5(illegal_instr_o_INST_0_i_3_n_0),
.O(illegal_instr_o));
(* SOFT_HLUTNM = "soft_lutpair0" *)
LUT5 #(
.INIT(32'hAEAEAEFE))
illegal_instr_o_INST_0_i_1
(.I0(fetched_instr_i[2]),
.I1(\ex_op_b_sel_o[0]_INST_0_i_2_n_0 ),
.I2(fetched_instr_i[5]),
.I3(\alu_op_o[3]_INST_0_i_4_n_0 ),
.I4(\ex_op_b_sel_o[0]_INST_0_i_6_n_0 ),
.O(illegal_instr_o_INST_0_i_1_n_0));
LUT6 #(
.INIT(64'hFFFFFFFFFFFFFFFE))
illegal_instr_o_INST_0_i_10
(.I0(fetched_instr_i[14]),
.I1(fetched_instr_i[12]),
.I2(fetched_instr_i[13]),
.I3(fetched_instr_i[9]),
.I4(fetched_instr_i[7]),
.I5(fetched_instr_i[30]),
.O(illegal_instr_o_INST_0_i_10_n_0));
LUT6 #(
.INIT(64'hEEEEEEEEFFFFFFFE))
illegal_instr_o_INST_0_i_2
(.I0(illegal_instr_o_INST_0_i_4_n_0),
.I1(illegal_instr_o_INST_0_i_5_n_0),
.I2(\ex_op_b_sel_o[0]_INST_0_i_6_n_0 ),
.I3(illegal_instr_o_INST_0_i_6_n_0),
.I4(illegal_instr_o_INST_0_i_7_n_0),
.I5(illegal_instr_o_INST_0_i_8_n_0),
.O(illegal_instr_o_INST_0_i_2_n_0));
LUT6 #(
.INIT(64'hC080C091C1D1C1D1))
illegal_instr_o_INST_0_i_3
(.I0(fetched_instr_i[2]),
.I1(fetched_instr_i[6]),
.I2(fetched_instr_i[5]),
.I3(fetched_instr_i[14]),
.I4(fetched_instr_i[12]),
.I5(fetched_instr_i[13]),
.O(illegal_instr_o_INST_0_i_3_n_0));
LUT6 #(
.INIT(64'h30FFF0B0FFFFFFFF))
illegal_instr_o_INST_0_i_4
(.I0(\ex_op_a_sel_o[0]_INST_0_i_1_n_0 ),
.I1(fetched_instr_i[2]),
.I2(fetched_instr_i[3]),
.I3(fetched_instr_i[5]),
.I4(fetched_instr_i[6]),
.I5(\ex_op_a_sel_o[1]_INST_0_i_1_n_0 ),
.O(illegal_instr_o_INST_0_i_4_n_0));
(* SOFT_HLUTNM = "soft_lutpair5" *)
LUT4 #(
.INIT(16'h4000))
illegal_instr_o_INST_0_i_5
(.I0(fetched_instr_i[3]),
.I1(fetched_instr_i[2]),
.I2(\ex_op_a_sel_o[0]_INST_0_i_1_n_0 ),
.I3(fetched_instr_i[6]),
.O(illegal_instr_o_INST_0_i_5_n_0));
LUT6 #(
.INIT(64'hFFFFFFFFFFFFFFFE))
illegal_instr_o_INST_0_i_6
(.I0(fetched_instr_i[10]),
.I1(fetched_instr_i[21]),
.I2(fetched_instr_i[23]),
.I3(fetched_instr_i[16]),
.I4(fetched_instr_i[19]),
.I5(fetched_instr_i[11]),
.O(illegal_instr_o_INST_0_i_6_n_0));
LUT6 #(
.INIT(64'hFFFFFFFFFFFFFFFE))
illegal_instr_o_INST_0_i_7
(.I0(illegal_instr_o_INST_0_i_9_n_0),
.I1(fetched_instr_i[17]),
.I2(fetched_instr_i[18]),
.I3(fetched_instr_i[8]),
.I4(fetched_instr_i[24]),
.I5(illegal_instr_o_INST_0_i_10_n_0),
.O(illegal_instr_o_INST_0_i_7_n_0));
(* SOFT_HLUTNM = "soft_lutpair5" *)
LUT3 #(
.INIT(8'h1F))
illegal_instr_o_INST_0_i_8
(.I0(fetched_instr_i[6]),
.I1(fetched_instr_i[3]),
.I2(fetched_instr_i[4]),
.O(illegal_instr_o_INST_0_i_8_n_0));
LUT4 #(
.INIT(16'hFFFE))
illegal_instr_o_INST_0_i_9
(.I0(fetched_instr_i[3]),
.I1(fetched_instr_i[2]),
.I2(fetched_instr_i[15]),
.I3(fetched_instr_i[22]),
.O(illegal_instr_o_INST_0_i_9_n_0));
LUT5 #(
.INIT(32'h80000000))
jal_o_INST_0
(.I0(fetched_instr_i[3]),
.I1(\ex_op_b_sel_o[2]_INST_0_i_1_n_0 ),
.I2(fetched_instr_i[2]),
.I3(fetched_instr_i[1]),
.I4(fetched_instr_i[0]),
.O(jal_o));
LUT6 #(
.INIT(64'h0000000008000000))
jalr_o_INST_0
(.I0(fetched_instr_i[1]),
.I1(fetched_instr_i[0]),
.I2(fetched_instr_i[3]),
.I3(\ex_op_b_sel_o[2]_INST_0_i_1_n_0 ),
.I4(fetched_instr_i[2]),
.I5(\ex_op_a_sel_o[0]_INST_0_i_1_n_0 ),
.O(jalr_o));
LUT5 #(
.INIT(32'h002A222A))
mem_req_o_INST_0
(.I0(\ex_op_b_sel_o[1]_INST_0_i_2_n_0 ),
.I1(fetched_instr_i[14]),
.I2(fetched_instr_i[5]),
.I3(fetched_instr_i[13]),
.I4(fetched_instr_i[12]),
.O(mem_req_o));
LUT6 #(
.INIT(64'h0000400040004000))
\mem_size_o[0]_INST_0
(.I0(fetched_instr_i[13]),
.I1(fetched_instr_i[12]),
.I2(branch_o_INST_0_i_1_n_0),
.I3(\mem_size_o[0]_INST_0_i_1_n_0 ),
.I4(fetched_instr_i[14]),
.I5(fetched_instr_i[5]),
.O(mem_size_o[0]));
(* SOFT_HLUTNM = "soft_lutpair7" *)
LUT2 #(
.INIT(4'h1))
\mem_size_o[0]_INST_0_i_1
(.I0(fetched_instr_i[4]),
.I1(fetched_instr_i[6]),
.O(\mem_size_o[0]_INST_0_i_1_n_0 ));
LUT6 #(
.INIT(64'h0000000000100000))
\mem_size_o[1]_INST_0
(.I0(fetched_instr_i[4]),
.I1(fetched_instr_i[6]),
.I2(branch_o_INST_0_i_1_n_0),
.I3(fetched_instr_i[12]),
.I4(fetched_instr_i[13]),
.I5(fetched_instr_i[14]),
.O(mem_size_o[1]));
LUT6 #(
.INIT(64'h0000000000100000))
\mem_size_o[2]_INST_0
(.I0(fetched_instr_i[4]),
.I1(fetched_instr_i[6]),
.I2(branch_o_INST_0_i_1_n_0),
.I3(fetched_instr_i[13]),
.I4(fetched_instr_i[14]),
.I5(fetched_instr_i[5]),
.O(mem_size_o[2]));
LUT5 #(
.INIT(32'h002A0000))
mem_we_o_INST_0
(.I0(\ex_op_b_sel_o[1]_INST_0_i_2_n_0 ),
.I1(fetched_instr_i[12]),
.I2(fetched_instr_i[13]),
.I3(fetched_instr_i[14]),
.I4(fetched_instr_i[5]),
.O(mem_we_o));
LUT5 #(
.INIT(32'h0000222A))
wb_src_sel_o_INST_0
(.I0(\ex_op_b_sel_o[1]_INST_0_i_2_n_0 ),
.I1(fetched_instr_i[13]),
.I2(fetched_instr_i[12]),
.I3(fetched_instr_i[14]),
.I4(fetched_instr_i[5]),
.O(wb_src_sel_o));
endmodule
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