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yosys-tests
Unverified Commit 6ac0f57e by Miodrag Milanović Committed by GitHub
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Merge pull request #54 from SergeyDegtyar/master 

Add new tests to backends,equiv,frontends,misc,simple.
parents 545a2320 ff67b923
Showing with 4238 additions and 13 deletions
backends/scripts/write_btor_shift.ys 0 → 100644
read_verilog -sv ../top.v
proc
pmux2shiftx
hierarchy -top top
flatten
write_btor btor.btor
write_verilog synth.v
backends/scripts/write_firrtl_fsm.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx
clean
write_firrtl firrtl.firrtl
write_verilog synth.v
backends/scripts/write_smt2_anyseq.ys 0 → 100644
read_verilog ../top.v
proc
setundef -anyseq
memory
write_smt2 -mem smt2.smt2
write_verilog synth.v
backends/scripts/write_smt2_init_assert.ys
read_verilog -sv ../top.v
proc
write_smt2 smt2.smt2
write_smt2 -stbv smt2.smt2
synth -top top
write_smt2 smt2.smt2
write_smt2 -stbv smt2.smt2
design -reset
read_verilog -sv ../top_clean.v
synth -top top
write_verilog synth.v
write_verilog synth.v
backends/scripts/write_verilog_lut.ys 0 → 100644
read_verilog ../top.v
proc
synth
abc -lut 5
write_verilog synth.v
backends/scripts/write_verilog_shift.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx
write_verilog synth.v
backends/scripts/write_verilog_slice.ys 0 → 100644
read_verilog ../top.v
proc
splice
write_verilog synth.v
backends/scripts/write_xaiger.ys 0 → 100644
read_verilog -sv ../top.v
aigmap
write_xaiger xaiger.xaiger
design -reset
read_verilog -sv ../top_clean.v
aigmap
write_xaiger xaiger.xaiger
synth -top top
write_verilog synth.v
backends/scripts/write_xaiger_ascii.ys 0 → 100644
read_verilog -sv ../top.v
aigmap
write_xaiger -ascii xaiger.xaiger
design -reset
read_verilog -sv ../top_clean.v
aigmap
write_xaiger xaiger.xaiger
synth -top top
write_verilog synth.v
backends/scripts/write_xaiger_cant_find_top_module.ys 0 → 100644
read_verilog -sv ../top.v
aigmap
write_xaiger xaiger.xaiger
design -reset
read_verilog -sv ../top_clean.v
aigmap
write_xaiger xaiger.xaiger
synth -top top
write_verilog synth.v
backends/scripts/write_xaiger_cant_open_file.ys 0 → 100644
read_verilog -sv ../top2.v
aigmap
write_xaiger -map tt/tt.map xaiger.xaiger
design -reset
read_verilog -sv ../top_clean.v
aigmap
write_xaiger xaiger.xaiger
synth -top top
write_verilog synth.v
backends/scripts/write_xaiger_map.ys 0 → 100644
read_verilog -sv ../top.v
proc
aigmap
write_xaiger -map a.map xaiger.xaiger
design -reset
read_verilog -sv ../top_clean.v
synth
aigmap
write_xaiger xaiger.xaiger
synth -top top
write_verilog synth.v
backends/scripts/write_xaiger_vmap.ys 0 → 100644
read_verilog -sv ../top.v
aigmap
write_xaiger -vmap a.map xaiger.xaiger
design -reset
read_verilog -sv ../top_clean.v
aigmap
write_xaiger xaiger.xaiger
synth -top top
write_verilog synth.v
backends/write_btor_init_assert/testbench.v 0 → 100644
module testbench;
reg [2:0] in;
reg patt_out = 0;
reg patt_carry_out = 0;
wire out;
wire carryout;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 in = 0;
repeat (10000) begin
#5 in = in + 1;
end
$display("OKAY");
end
top uut (
.x(in[0]),
.y(in[1]),
.cin(in[2]),
.A(out),
.cout(carryout)
);
always @(posedge in[0])
patt_out <= in[1] + in[2];
always @(negedge in[0])
patt_carry_out <= in[1] + patt_out;
assert_comb out_test(.A(patt_out), .B(out));
assert_comb carry_test(.A(patt_carry_out), .B(carryout));
endmodule
backends/write_btor_init_assert/top.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
reg ASSERT = 1;
(* anyconst *) reg foo;
(* anyseq *) reg too;
initial begin
begin
A = 0;
cout = 0;
end
end
`ifndef BUG
always @(posedge x) begin
if ($initstate)
A <= 0;
A <= y + cin + too;
assume(too);
assume(s_eventually too);
end
always @(negedge x) begin
if ($initstate)
cout <= 0;
cout <= y + A + foo;
assert(ASSERT);
assert(s_eventually ASSERT);
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
backends/write_btor_init_assert/top_clean.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
initial begin
A = 0;
cout = 0;
end
`ifndef BUG
always @(posedge x) begin
A <= y + cin;
end
always @(negedge x) begin
cout <= y + A;
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
backends/write_btor_shift_shiftx/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
function [31:0] xorshift32;
input [31:0] arg;
begin
xorshift32 = arg;
// Xorshift32 RNG, doi:10.18637/jss.v008.i14
xorshift32 = xorshift32 ^ (xorshift32 << 13);
xorshift32 = xorshift32 ^ (xorshift32 >> 17);
xorshift32 = xorshift32 ^ (xorshift32 << 5);
end
endfunction
reg [31:0] rng = 123456789;
always @(posedge clk) rng <= xorshift32(rng);
wire a = xorshift32(rng * 5);
wire b = xorshift32(rng * 7);
reg rst;
wire g0;
wire g1;
top uut (
.a (a),
.b (b),
.clk (clk),
.rst (rst),
.g0(g0),
.g1(g1)
);
initial begin
rst <= 1;
#5
rst <= 0;
end
assert_Z g0_test(.clk(clk), .A(g0));
assert_Z g1_test(.clk(clk), .A(g1));
endmodule
backends/write_btor_shift_shiftx/top.v 0 → 100644
module fsm (
clock,
reset,
req_0,
req_1,
gnt_0,
gnt_1
);
input clock,reset,req_0,req_1;
output gnt_0,gnt_1;
wire clock,reset,req_0,req_1;
reg gnt_0,gnt_1;
parameter SIZE = 3 ;
parameter IDLE = 3'b001,GNT0 = 3'b010,GNT1 = 3'b100,GNT2 = 3'b101 ;
reg [SIZE-1:0] state;
reg [SIZE-1:0] next_state;
always @ (posedge clock)
begin : FSM
if (reset == 1'b1) begin
state <= #1 IDLE;
gnt_0 <= 0;
gnt_1 <= 0;
end else
case(state)
IDLE : if (req_0 == 1'b1) begin
state <= #1 GNT0;
`ifndef BUG
gnt_0 <= 1;
`else
gnt_0 <= 1'bZ;
`endif
end else if (req_1 == 1'b1) begin
gnt_1 <= 1;
state <= #1 GNT0;
end else begin
state <= #1 IDLE;
end
GNT0 : if (req_0 == 1'b1) begin
state <= #1 GNT0;
end else begin
gnt_0 <= 0;
state <= #1 IDLE;
end
GNT1 : if (req_1 == 1'b1) begin
state <= #1 GNT2;
gnt_1 <= req_0;
end
GNT2 : if (req_0 == 1'b1) begin
state <= #1 GNT1;
gnt_1 <= req_1;
end
default : state <= #1 IDLE;
endcase
end
endmodule
module top (
input clk,
input rst,
input a,
input b,
output g0,
output g1
);
fsm u_fsm ( .clock(clk),
.reset(rst),
.req_0(a),
.req_1(b),
.gnt_0(g0),
.gnt_1(g1));
endmodule
backends/write_firrtl_fsm/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
function [31:0] xorshift32;
input [31:0] arg;
begin
xorshift32 = arg;
// Xorshift32 RNG, doi:10.18637/jss.v008.i14
xorshift32 = xorshift32 ^ (xorshift32 << 13);
xorshift32 = xorshift32 ^ (xorshift32 >> 17);
xorshift32 = xorshift32 ^ (xorshift32 << 5);
end
endfunction
reg [31:0] rng = 123456789;
always @(posedge clk) rng <= xorshift32(rng);
wire a = xorshift32(rng * 5);
wire b = xorshift32(rng * 7);
reg rst;
wire g0;
wire g1;
top uut (
.a (a),
.b (b),
.clk (clk),
.rst (rst),
.g0(g0),
.g1(g1)
);
initial begin
rst <= 1;
#5
rst <= 0;
end
assert_Z g0_test(.clk(clk), .A(g0));
assert_Z g1_test(.clk(clk), .A(g1));
endmodule
backends/write_firrtl_fsm/top.v 0 → 100644
module fsm (
clock,
reset,
req_0,
req_1,
gnt_0,
gnt_1
);
input clock,reset,req_0,req_1;
output gnt_0,gnt_1;
wire clock,reset,req_0,req_1;
reg gnt_0,gnt_1;
parameter SIZE = 3 ;
parameter IDLE = 3'b001,GNT0 = 3'b010,GNT1 = 3'b100,GNT2 = 3'b101 ;
reg [SIZE-1:0] state;
reg [SIZE-1:0] next_state;
always @ (posedge clock)
begin : FSM
if (reset == 1'b1) begin
state <= #1 IDLE;
gnt_0 <= 0;
gnt_1 <= 0;
end else
case(state)
IDLE : if (req_0 == 1'b1) begin
state <= #1 GNT0;
`ifndef BUG
gnt_0 <= 1;
`else
gnt_0 <= 1'bZ;
`endif
end else if (req_1 == 1'b1) begin
gnt_1 <= 1;
state <= #1 GNT0;
end else begin
state <= #1 IDLE;
end
GNT0 : if (req_0 == 1'b1) begin
state <= #1 GNT0;
end else begin
gnt_0 <= 0;
state <= #1 IDLE;
end
GNT1 : if (req_1 == 1'b1) begin
state <= #1 GNT2;
gnt_1 <= req_0;
end
GNT2 : if (req_0 == 1'b1) begin
state <= #1 GNT1;
gnt_1 <= req_1;
end
default : state <= #1 IDLE;
endcase
end
endmodule
module top (
input clk,
input rst,
input a,
input b,
output g0,
output g1
);
fsm u_fsm ( .clock(clk),
.reset(rst),
.req_0(a),
.req_1(b),
.gnt_0(g0),
.gnt_1(g1));
endmodule
backends/write_smt2_init_assert/top.v
......@@ -8,14 +8,14 @@ module top
output reg cout,
output reg B,C
);
reg ASSERT = 1;
(* anyconst *) reg foo;
(* anyseq *) reg too;
(* allconst *) reg foo;
(* allseq *) reg too;
initial begin
begin
A = 0;
......@@ -25,14 +25,14 @@ module top
`ifndef BUG
always @(posedge x) begin
if ($initstate)
if ($initstate)
A <= 0;
A <= y + cin + too;
assume(too);
assume(too);
assume(s_eventually too);
end
always @(posedge x) begin
if ($initstate)
if ($initstate)
cout <= 0;
cout <= y + A + foo;
assert(ASSERT);
......
backends/write_verilog_shift_shiftx/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
function [31:0] xorshift32;
input [31:0] arg;
begin
xorshift32 = arg;
// Xorshift32 RNG, doi:10.18637/jss.v008.i14
xorshift32 = xorshift32 ^ (xorshift32 << 13);
xorshift32 = xorshift32 ^ (xorshift32 >> 17);
xorshift32 = xorshift32 ^ (xorshift32 << 5);
end
endfunction
reg [31:0] rng = 123456789;
always @(posedge clk) rng <= xorshift32(rng);
wire a = xorshift32(rng * 5);
wire b = xorshift32(rng * 7);
reg rst;
wire g0;
wire g1;
top uut (
.a (a),
.b (b),
.clk (clk),
.rst (rst),
.g0(g0),
.g1(g1)
);
initial begin
rst <= 1;
#5
rst <= 0;
end
assert_Z g0_test(.clk(clk), .A(g0));
assert_Z g1_test(.clk(clk), .A(g1));
endmodule
backends/write_verilog_shift_shiftx/top.v 0 → 100644
module fsm (
clock,
reset,
req_0,
req_1,
gnt_0,
gnt_1
);
input clock,reset,req_0,req_1;
output signed gnt_0,gnt_1;
wire clock,reset,req_0,req_1;
reg gnt_0,gnt_1;
parameter SIZE = 3 ;
parameter IDLE = 3'b001,GNT0 = 3'b010,GNT1 = 3'b100,GNT2 = 3'b101 ;
reg signed [SIZE-1:0] state;
reg signed [SIZE-1:0] next_state;
always @ (posedge clock)
begin : FSM
if (reset == 1'b1) begin
state <= #1 IDLE;
gnt_0 <= 0;
gnt_1 <= 0;
end else
case(state)
IDLE : if (req_0 == 1'b1) begin
state <= #1 GNT0;
`ifndef BUG
gnt_0 <= 1;
`else
gnt_0 <= 1'bZ;
`endif
end else if (req_1 == 1'b1) begin
gnt_1 <= 1;
state <= #1 GNT0;
end else begin
state <= #1 IDLE;
end
GNT0 : if (req_0 == 1'b1) begin
state <= #1 GNT0;
end else begin
gnt_0 <= 0;
state <= #1 IDLE;
end
GNT1 : if (req_1 == 1'b1) begin
state <= #1 GNT2;
gnt_1 <= req_0;
end
GNT2 : if (req_0 == 1'b1) begin
state <= #1 GNT1;
gnt_1 <= req_1;
end
default : state <= #1 IDLE;
endcase
end
endmodule
module top (
input clk,
input rst,
input a,
input b,
output g0,
output g1
);
fsm u_fsm ( .clock(clk),
.reset(rst),
.req_0(a),
.req_1(b),
.gnt_0(g0),
.gnt_1(g1));
endmodule
backends/write_xaiger/testbench.v 0 → 100644
module testbench;
reg [2:0] in;
reg patt_out = 0;
reg patt_carry_out = 0;
wire out;
wire carryout;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 in = 0;
repeat (10000) begin
#5 in = in + 1;
end
$display("OKAY");
end
top uut (
.x(in[0]),
.y(in[1]),
.cin(in[2]),
.A(out),
.cout(carryout)
);
always @(posedge in[0])
patt_out <= in[1] + in[2];
always @(negedge in[0])
patt_carry_out <= in[1] + patt_out;
assert_comb out_test(.A(patt_out), .B(out));
assert_comb carry_test(.A(patt_carry_out), .B(carryout));
endmodule
backends/write_xaiger/top.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
reg ASSERT = 1;
(* anyconst *) reg foo;
(* anyseq *) reg too;
initial begin
begin
A = 0;
cout = 0;
end
end
`ifndef BUG
always @(posedge x) begin
if ($initstate)
A <= 0;
A <= y + cin + too;
assume(too);
assume(s_eventually too);
end
always @(negedge x) begin
if ($initstate)
cout <= 0;
cout <= y + A + foo;
assert(ASSERT);
assert(s_eventually ASSERT);
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
backends/write_xaiger/top_clean.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
initial begin
A = 0;
cout = 0;
end
`ifndef BUG
always @(posedge x) begin
A <= y + cin;
end
always @(negedge x) begin
cout <= y + A;
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
backends/write_xaiger_error/testbench.v 0 → 100644
module testbench;
reg [2:0] in;
reg patt_out = 0;
reg patt_carry_out = 0;
wire out;
wire carryout;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 in = 0;
repeat (10000) begin
#5 in = in + 1;
end
$display("OKAY");
end
top uut (
.x(in[0]),
.y(in[1]),
.cin(in[2]),
.A(out),
.cout(carryout)
);
always @(posedge in[0])
patt_out <= in[1] + in[2];
always @(negedge in[0])
patt_carry_out <= in[1] + patt_out;
assert_comb out_test(.A(patt_out), .B(out));
assert_comb carry_test(.A(patt_carry_out), .B(carryout));
endmodule
backends/write_xaiger_error/top.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
reg ASSERT = 1;
(* anyconst *) reg foo;
(* anyseq *) reg too;
initial begin
begin
A = 0;
cout = 0;
end
end
`ifndef BUG
always @(posedge x) begin
if ($initstate)
A <= 0;
A <= y + cin + too;
assume(too);
assume(s_eventually too);
end
always @(negedge x) begin
if ($initstate)
cout <= 0;
cout <= y + A + foo;
assert(ASSERT);
assert(s_eventually ASSERT);
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
module top2
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
reg ASSERT = 1;
(* anyconst *) reg foo;
(* anyseq *) reg too;
initial begin
begin
A = 0;
cout = 0;
end
end
`ifndef BUG
always @(posedge x) begin
if ($initstate)
A <= 0;
A <= y + cin + too;
assume(too);
assume(s_eventually too);
end
always @(negedge x) begin
if ($initstate)
cout <= 0;
cout <= y + A + foo;
assert(ASSERT);
assert(s_eventually ASSERT);
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
backends/write_xaiger_error/top2.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout,
output X
);
reg ASSERT = 1'bX;
(* anyconst *) reg foo;
(* anyseq *) reg too;
initial begin
begin
A = 1'bX;
cout = 1'bZ;
end
end
`ifndef BUG
always @(posedge x) begin
if ($initstate)
A <= 1'bX;
A <= y + cin + too;
assume(too);
assume(s_eventually too);
end
always @(negedge x) begin
if ($initstate)
cout <= 1'bZ;
cout <= y + A + foo;
assert(ASSERT);
assert(s_eventually ASSERT);
end
assign X = 1'bX;
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
backends/write_xaiger_error/top_clean.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
initial begin
A = 0;
cout = 0;
end
`ifndef BUG
always @(posedge x) begin
A <= y + cin;
end
always @(negedge x) begin
cout <= y + A;
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
backends/write_xaiger_fsm/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg a = 0;
reg b = 0;
reg rst;
reg en;
wire s;
wire bs;
wire f;
top uut ( .clk(clk),
.rst(rst),
.en(en),
.a(a),
.b(b),
.s(s),
.bs(bs),
.f(f));
always @(posedge clk)
begin
#2
a <= ~a;
end
always @(posedge clk)
begin
#4
b <= ~b;
end
initial begin
en <= 1;
rst <= 1;
#5
rst <= 0;
end
assert_expr s_test(.clk(clk), .A(s));
assert_expr bs_test(.clk(clk), .A(bs));
assert_expr f_test(.clk(clk), .A(f));
endmodule
module assert_expr(input clk, input A);
always @(posedge clk)
begin
//#1;
if (A == 1'bZ)
begin
$display("ERROR: ASSERTION FAILED in %m:",$time," ",A);
$stop;
end
end
endmodule
backends/write_xaiger_fsm/top.v 0 → 100644
module top (
input clk,
input rst,
input en,
input a,
input b,
output s,
output bs,
output f
);
parameter S0 = 4'b0000, S1 = 4'b0001, S2 = 4'b0010, S3 = 4'b0011, S4 = 4'b0100, S5 = 4'b0101, S6 = 4'b0110, S7 = 4'b0111, S8 = 4'b1000, S9 = 4'b1001, S10 = 4'b1010, S11 = 4'b1011, S12 = 4'b1100, S13 = 4'b1101, S14 = 4'b1110;
reg [3:0] ns, st;
reg [2:0] count;
always @(posedge clk)
begin : CurrstProc
if (rst)
st <= S0;
else
st <= ns;
end
always @*
begin : NextstProc
ns = st;
case (st)
S0: ns = S1;
S1: ns = S2;
S2:
if (b == 1'b1)
ns = S3;
else
ns = S4;
S3: ns = S1;
S4: if (count > 7)
ns = S10;
else
ns = S5;
S5: if (a == 1'b0)
ns = S6;
else
ns = S3;
S6:
if (a == 1'b1)
ns = S7;
else
ns = S8;
S7:
if (a == 1'b1 && b == 1'b1)
ns = S5;
else
ns = S13;
S8: ns = S9;
S9: ns = S8;
S10:
if (a == 1'b1 || b == 1'b1)
ns = S11;
else
ns = S4;
S11: ns = S12;
S12: ns = S10;
S13: ;
default: ns = S0;
endcase;
end
always @(posedge clk)
if(~rst)
count <= 0;
else
begin
if(st == S4)
if (count > 7)
count <= 0;
else
count <= count + 1;
end
//FSM outputs (combinatorial)
assign s = (st == S3 || st == S12) ? 1'b1 : 1'b0;
assign f = (st == S13) ? 1'b1 : 1'b0;
assign bs = (st == S8 || st == S9) ? 1'b1 : 1'b0;
endmodule
backends/write_xaiger_fsm/top_clean.v 0 → 100644
module top (
input clk,
input rst,
input en,
input a,
input b,
output s,
output bs,
output f
);
parameter S0 = 4'b0000, S1 = 4'b0001, S2 = 4'b0010, S3 = 4'b0011, S4 = 4'b0100, S5 = 4'b0101, S6 = 4'b0110, S7 = 4'b0111, S8 = 4'b1000, S9 = 4'b1001, S10 = 4'b1010, S11 = 4'b1011, S12 = 4'b1100, S13 = 4'b1101, S14 = 4'b1110;
reg [3:0] ns, st;
reg [2:0] count;
always @(posedge clk)
begin : CurrstProc
if (rst)
st <= S0;
else
st <= ns;
end
always @*
begin : NextstProc
ns = st;
case (st)
S0: ns = S1;
S1: ns = S2;
S2:
if (b == 1'b1)
ns = S3;
else
ns = S4;
S3: ns = S1;
S4: if (count > 7)
ns = S10;
else
ns = S5;
S5: if (a == 1'b0)
ns = S6;
else
ns = S3;
S6:
if (a == 1'b1)
ns = S7;
else
ns = S8;
S7:
if (a == 1'b1 && b == 1'b1)
ns = S5;
else
ns = S13;
S8: ns = S9;
S9: ns = S8;
S10:
if (a == 1'b1 || b == 1'b1)
ns = S11;
else
ns = S4;
S11: ns = S12;
S12: ns = S10;
S13: ;
default: ns = S0;
endcase;
end
always @(posedge clk)
if(~rst)
count <= 0;
else
begin
if(st == S4)
if (count > 7)
count <= 0;
else
count <= count + 1;
end
//FSM outputs (combinatorial)
assign s = (st == S3 || st == S12) ? 1'b1 : 1'b0;
assign f = (st == S13) ? 1'b1 : 1'b0;
assign bs = (st == S8 || st == S9) ? 1'b1 : 1'b0;
endmodule
backends/write_xaiger_mem/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [7:0] data_a = 0;
reg [7:0] data_b = 0;
reg [5:0] addr_a = 0;
reg [5:0] addr_b = 0;
reg we_a = 0;
reg we_b = 1;
reg re_a = 1;
reg re_b = 1;
wire [7:0] q_a,q_b;
reg mem_init = 0;
top uut (
.data_a(data_a),
.data_b(data_b),
.addr_a(addr_a),
.addr_b(addr_b),
.we_a(we_a),
.we_b(we_b),
.re_a(re_a),
.re_b(re_b),
.clka(clk),
.clkb(clk),
.q_a(q_a),
.q_b(q_b)
);
always @(posedge clk) begin
#3;
data_a <= data_a + 17;
data_b <= data_b + 5;
addr_a <= addr_a + 1;
addr_b <= addr_b + 1;
end
always @(posedge addr_a) begin
#10;
if(addr_a > 6'h3E)
mem_init <= 1;
end
always @(posedge clk) begin
//#3;
we_a <= !we_a;
we_b <= !we_b;
end
uut_mem_checker port_a_test(.clk(clk), .init(mem_init), .en(!we_a), .A(q_a));
uut_mem_checker port_b_test(.clk(clk), .init(mem_init), .en(!we_b), .A(q_b));
endmodule
module uut_mem_checker(input clk, input init, input en, input [7:0] A);
always @(posedge clk)
begin
#1;
if (en == 1 & init == 1 & A === 8'bXXXXXXXX)
begin
$display("ERROR: ASSERTION FAILED in %m:",$time," ",A);
$stop;
end
end
endmodule
backends/write_xaiger_mem/top.v 0 → 100644
module top
(
input [7:0] data_a, data_b,
input [6:1] addr_a, addr_b,
input we_a, we_b, re_a, re_b, clka, clkb,
output reg [7:0] q_a, q_b
);
// Declare the RAM variable
reg [7:0] ram[63:0];
initial begin
q_a <= 8'h00;
q_b <= 8'd0;
end
// Port A
always @ (posedge clka)
begin
`ifndef BUG
if (we_a)
`else
if (we_b)
`endif
begin
ram[addr_a] <= data_a;
q_a <= data_a;
end
if (re_b)
begin
q_a <= ram[addr_a];
end
end
// Port B
always @ (posedge clkb)
begin
`ifndef BUG
if (we_b)
`else
if (we_a)
`endif
begin
ram[addr_b] <= data_b;
q_b <= data_b;
end
if (re_b)
begin
q_b <= ram[addr_b];
end
end
endmodule
backends/write_xaiger_mem/top_clean.v 0 → 100644
module top
(
input [7:0] data_a, data_b,
input [6:1] addr_a, addr_b,
input we_a, we_b, re_a, re_b, clka, clkb,
output reg [7:0] q_a, q_b
);
// Declare the RAM variable
reg [7:0] ram[63:0];
initial begin
q_a <= 8'h00;
q_b <= 8'd0;
end
// Port A
always @ (posedge clka)
begin
`ifndef BUG
if (we_a)
`else
if (we_b)
`endif
begin
ram[addr_a] <= data_a;
q_a <= data_a;
end
if (re_b)
begin
q_a <= ram[addr_a];
end
end
// Port B
always @ (posedge clkb)
begin
`ifndef BUG
if (we_b)
`else
if (we_a)
`endif
begin
ram[addr_b] <= data_b;
q_b <= data_b;
end
if (re_b)
begin
q_b <= ram[addr_b];
end
end
endmodule
equiv/Makefile
......@@ -59,7 +59,7 @@ $(eval $(call template,equiv_add,equiv_add equiv_add_try ))
$(eval $(call template,equiv_add_error,equiv_add_module_context ))
#equiv_opt
$(eval $(call template,equiv_opt,equiv_opt equiv_opt_run equiv_opt_map))
$(eval $(call template,equiv_opt,equiv_opt equiv_opt_run equiv_opt_map equiv_opt_undef))
$(eval $(call template,equiv_opt_error,equiv_opt_unknown_option equiv_opt_no_opt equiv_opt_fully_selected_des))
.PHONY: all clean
equiv/scripts/equiv_opt_undef.ys 0 → 100644
read_verilog ../top.v
prep -flatten -top top
splitnets -ports;;
design -stash gold
read_verilog ../synth_top.v
read_verilog ../logic.v
prep -flatten -top top
splitnets -ports;;
design -stash gate
design -copy-from gold -as gold top
design -copy-from gate -as gate top
equiv_make gold gate equiv
equiv_opt -undef equiv_purge
design -reset
read_verilog ../top.v
write_verilog synth.v
frontends/read_liberty_tech/testbench.v 0 → 100644
module testbench;
reg a;
wire b;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 a = 0;
repeat (10000) begin
#5 a = ~a;
end
$display("OKAY");
end
top uut (
.A(a),
.Y(b)
);
assert_comb b_test(.A(~a),.B(b));
endmodule
frontends/read_verilog_assert/testbench.v 0 → 100644
module testbench;
reg [2:0] in;
reg patt_out = 0;
reg patt_carry_out = 0;
wire out;
wire carryout;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 in = 0;
repeat (10000) begin
#5 in = in + 1;
end
$display("OKAY");
end
top uut (
.x(in[0]),
.y(in[1]),
.cin(in[2]),
.A(out),
.cout(carryout)
);
always @(posedge in[0])
patt_out <= in[1] + in[2];
always @(negedge in[0])
patt_carry_out <= in[1] + patt_out;
assert_comb out_test(.A(patt_out), .B(out));
assert_comb carry_test(.A(patt_carry_out), .B(carryout));
endmodule
frontends/read_verilog_assert/top.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
reg ASSERT = 1;
(* allconst *) reg foo;
(* allseq *) reg too;
initial begin
begin
A = 0;
cout = 0;
end
end
`ifndef BUG
always @(posedge x) begin
if ($initstate)
A <= 0;
A <= y + cin + too;
assume(too);
assume(s_eventually too);
end
always @(negedge x) begin
if ($initstate)
cout <= 0;
cout <= y + A + foo;
assert(ASSERT);
assert(s_eventually ASSERT);
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
frontends/read_verilog_assert/top_clean.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
initial begin
A = 0;
cout = 0;
end
`ifndef BUG
always @(posedge x) begin
A <= y + cin;
end
always @(negedge x) begin
cout <= y + A;
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
frontends/read_verilog_attributes/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [15:0] D = 1;
reg [3:0] S = 0;
wire M2,M4,M8,M16;
top uut (
.S (S ),
.D (D ),
.M2 (M2 ),
.M4 (M4 ),
.M8 (M8 ),
.M16 (M16 )
);
always @(posedge clk) begin
//#3;
D <= {D[14:0],D[15]};
//D <= D <<< 1;
S <= S + 1;
end
assert_tri m2_test(.en(clk), .A(D[0]|D[1]), .B(M2));
assert_tri m4_test(.en(clk), .A(D[0]|D[1]|D[2]|D[3]), .B(M4));
assert_tri m8_test(.en(clk), .A(!S[3]), .B(M8));
assert_tri m16_test(.en(clk), .A(1'b1), .B(M16));
endmodule
frontends/read_verilog_attributes/top.v 0 → 100644
(* black_box *) module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
`ifndef BUG
always @(*)
Y = (S)? B : A;
`else
always @(*)
Y = (~S)? B : A;
`endif
endmodule
(* white_box *)module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
`ifndef BUG
2 : Y = D[2];
`else
2 : Y = D[3];
`endif
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
input[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
`ifndef BUG
4 : Y = D[4];
`else
4 : Y = D[7];
`endif
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
endmodule
frontends/read_verilog_comparison/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [15:0] I0 = 1;
reg [15:0] I1 = 0;
wire A,B,C,D,E,F;
reg Ap,Bp,Cp,Dp,Ep,Fp;
top uut (
.clk (clk),
.I0 (I0 ),
.I1 (I1 ),
.A (A ),
.B (B ),
.C (C ),
.D (D ),
.E (E ),
.F (F )
);
always @(posedge clk)
begin
if (I0 < I1)
Ap <= 1'b1;
else
Ap <= 1'b0;
if (I0 <= I1)
Bp <= 1'b1;
else
Bp <= 1'b0;
if (I0 != I1)
Cp <= 1'b1;
else
Cp <= 1'b0;
if (I0 === I1)
Dp <= 1'b1;
else
Dp <= 1'b0;
if (I0 !== I1)
Ep <= 1'b1;
else
Ep <= 1'b0;
if (I0 >= I1)
Fp <= 1'b1;
else
Fp <= 1'b0;
end
always @(posedge clk) begin
//#3;
I0 <= {I0[14:0],I0[15]};
//D <= D <<< 1;
I1 <= I1 + 1;
end
assert_tri A_test(.en(clk), .A(A), .B(Ap));
assert_tri B_test(.en(clk), .A(B), .B(Bp));
assert_tri C_test(.en(clk), .A(C), .B(Cp));
//assert_tri D_test(.en(clk), .A(D), .B(Dp));
assert_tri E_test(.en(clk), .A(E), .B(Ep));
assert_tri F_test(.en(clk), .A(F), .B(Fp));
endmodule
frontends/read_verilog_comparison/top.v 0 → 100644
module top (
input clk,
input [15:0] I0,
input [15:0] I1,
output reg A,B,C,D,E,F
);
always @(posedge clk)
begin
if (I0 < I1)
A <= 1'b1;
else
A <= 1'b0;
if (I0 <= I1)
B <= 1'b1;
else
B <= 1'b0;
if (I0 != I1)
C <= 1'b1;
else
C <= 1'b0;
if (I0 === I1)
D <= 1'b1;
else
D <= 1'b0;
if (I0 !== I1)
E <= 1'b1;
else
E <= 1'b0;
if (I0 >= I1)
F <= 1'b1;
else
F <= 1'b0;
end
endmodule
frontends/read_verilog_div_mod/testbench.v 0 → 100644
module testbench;
reg [2:0] in;
wire patt_out,out;
wire patt_carry_out,carryout;
initial begin
$dumpfile("testbench.vcd");
$dumpvars(0, testbench);
#5 in = 0;
repeat (10000) begin
#5 in = in + 1;
end
$display("OKAY");
end
top uut (
.x(in[0]),
.y(in[1]),
.cin(in[2]),
.A(out),
.cout(carryout)
);
assign {patt_carry_out,patt_out} = in[2] % in[1] / in[0];
assert_Z out_test(in[0], out);
assert_Z carry_test(in[0], carryout);
endmodule
frontends/read_verilog_div_mod/top.v 0 → 100644
module top
(
input x,
input y,
input cin,
output A,
output cout
);
wire pow,p,n;
`ifndef BUG
assign {cout,A} = cin % y / x;
assign pow = y ** x;
assign p = +x;
assign n = -x;
`else
assign {cout,A} = 2'bZZ;
`endif
endmodule
frontends/read_verilog_dpi/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [15:0] D = 1;
reg [3:0] S = 0;
wire M2,M4,M8,M16;
top uut (
.S (S ),
.D (D ),
.M2 (M2 ),
.M4 (M4 ),
.M8 (M8 ),
.M16 (M16 )
);
always @(posedge clk) begin
//#3;
D <= {D[14:0],D[15]};
//D <= D <<< 1;
S <= S + 1;
end
assert_tri m2_test(.en(clk), .A(D[0]|D[1]), .B(M2));
assert_tri m4_test(.en(clk), .A(D[0]|D[1]|D[2]|D[3]), .B(M4));
assert_tri m8_test(.en(clk), .A(!S[3]), .B(M8));
assert_tri m16_test(.en(clk), .A(1'b1), .B(M16));
endmodule
frontends/read_verilog_dpi/top.v 0 → 100644
module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
`ifndef BUG
always @(*)
Y = (S)? B : A;
`else
always @(*)
Y = (~S)? B : A;
`endif
endmodule
module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
`ifndef BUG
2 : Y = D[2];
`else
2 : Y = D[3];
`endif
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
input[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
`ifndef BUG
4 : Y = D[4];
`else
4 : Y = D[7];
`endif
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
endmodule
package my_pkg;
localparam u = 0;
endpackage
module tb_dpi;
import "DPI-C" function int add();
wire logic w;
endmodule
module hello();
import "DPI-C" function void print_hello();
endmodule
frontends/read_verilog_ff_edge/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [2:0] dinA = 0;
wire doutB,doutB1,doutB2,doutB3,doutB4;
reg dff,ndff,adff,adffn,dffe = 0;
top uut (
.clk (clk ),
.a (dinA[0] ),
.pre (dinA[1] ),
.clr (dinA[2] ),
.b (doutB ),
.b1 (doutB1 ),
.b2 (doutB2 ),
.b3 (doutB3 ),
.b4 (doutB4 )
);
always @(posedge clk) begin
#3;
dinA <= dinA + 1;
end
always @( posedge clk, posedge dinA[1], posedge dinA[2] )
if ( dinA[2] )
dff <= 1'b0;
else if ( dinA[1] )
dff <= 1'b1;
else
dff <= dinA[0];
always @( negedge clk, negedge dinA[1], negedge dinA[2] )
if ( !dinA[2] )
ndff <= 1'b0;
else if ( !dinA[1] )
ndff <= 1'b1;
else
ndff <= dinA[0];
always @( posedge clk, posedge dinA[2] )
if ( dinA[2] )
adff <= 1'b0;
else
adff <= dinA[0];
always @( posedge clk, negedge dinA[2] )
if ( !dinA[2] )
adffn <= 1'b0;
else
adffn <= dinA[0];
always @( posedge clk )
if ( dinA[2] )
dffe <= dinA[0];
assert_dff dff_test(.clk(clk), .test(doutB), .pat(dff));
assert_dff ndff_test(.clk(clk), .test(doutB1), .pat(ndff));
assert_dff adff_test(.clk(clk), .test(doutB2), .pat(adff));
assert_dff adffn_test(.clk(clk), .test(doutB3), .pat(adffn));
assert_dff dffe_test(.clk(clk), .test(doutB4), .pat(dffe));
endmodule
frontends/read_verilog_ff_edge/top.v 0 → 100644
module adff
( input d, clk, clr, output reg q );
initial begin
q = 0;
end
always @( posedge clk, posedge clr )
if ( clr )
`ifndef BUG
q <= 1'b0;
`else
q <= d;
`endif
else
q <= d;
endmodule
module adffn
( input d, clk, clr, output reg q );
initial begin
q = 0;
end
always @( posedge clk, negedge clr )
if ( !clr )
`ifndef BUG
q <= 1'b0;
`else
q <= d;
`endif
else
q <= d;
endmodule
module dffe
( input d, clk, en, output reg q );
initial begin
q = 0;
end
always @( posedge clk )
if ( en )
`ifndef BUG
q <= d;
`else
q <= 1'b0;
`endif
endmodule
module dffsr
( input d, clk, pre, clr, output reg q );
initial begin
q = 0;
end
always @( posedge clk, posedge pre, posedge clr )
if ( clr )
`ifndef BUG
q <= 1'b0;
`else
q <= d;
`endif
else if ( pre )
q <= 1'b1;
else
q <= d;
endmodule
module ndffnsnr
( input d, clk, pre, clr, output reg q );
initial begin
q = 0;
end
always @( negedge clk, negedge pre, negedge clr )
if ( !clr )
`ifndef BUG
q <= 1'b0;
`else
q <= d;
`endif
else if ( !pre )
q <= 1'b1;
else
q <= d;
endmodule
module top (
input clk,
input clr,
input pre,
input a,
output b,b1,b2,b3,b4
);
dffsr u_dffsr (
.clk (clk ),
.clr (clr),
.pre (pre),
.d (a ),
.q (b )
);
ndffnsnr u_ndffnsnr (
.clk (clk ),
.clr (clr),
.pre (pre),
.d (a ),
.q (b1 )
);
adff u_adff (
.clk (clk ),
.clr (clr),
.d (a ),
.q (b2 )
);
adffn u_adffn (
.clk (clk ),
.clr (clr),
.d (a ),
.q (b3 )
);
dffe u_dffe (
.clk (clk ),
.en (clr),
.d (a ),
.q (b4 )
);
endmodule
frontends/read_verilog_for_while/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [15:0] D = 1;
reg [3:0] S = 0;
wire M2,M4,M8,M16;
top uut (
.S (S ),
.D (D ),
.M2 (M2 ),
.M4 (M4 ),
.M8 (M8 ),
.M16 (M16 )
);
always @(posedge clk) begin
//#3;
D <= {D[14:0],D[15]};
//D <= D <<< 1;
S <= S + 1;
end
assert_tri m2_test(.en(clk), .A(D[0]|D[1]), .B(M2));
assert_tri m4_test(.en(clk), .A(D[0]|D[1]|D[2]|D[3]), .B(M4));
assert_tri m8_test(.en(clk), .A(!S[3]), .B(M8));
assert_tri m16_test(.en(clk), .A(1'b1), .B(M16));
endmodule
frontends/read_verilog_for_while/top.v 0 → 100644
module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
`ifndef BUG
always @(*)
Y = (S)? B : A;
`else
always @(*)
Y = (~S)? B : A;
`endif
endmodule
module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
reg i;
function integer log2;
input integer value;
begin
value = value-1;
for (log2=0; value>0; log2=log2+1)
while (1)
value = value>>1;
repeat(10)
begin
end
end
endfunction
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
`ifndef BUG
2 : Y = D[2];
`else
2 : Y = D[3];
`endif
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
input[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
`ifndef BUG
4 : Y = D[4];
`else
4 : Y = D[7];
`endif
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
endmodule
frontends/read_verilog_fsm/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg a = 0;
reg b = 0;
reg rst;
reg en;
wire s;
wire bs;
wire f;
top uut ( .clk(clk),
.rst(rst),
.en(en),
.a(a),
.b(b),
.s(s),
.bs(bs),
.f(f));
always @(posedge clk)
begin
#2
a <= ~a;
end
always @(posedge clk)
begin
#4
b <= ~b;
end
initial begin
en <= 1;
rst <= 1;
#5
rst <= 0;
end
assert_expr s_test(.clk(clk), .A(s));
assert_expr bs_test(.clk(clk), .A(bs));
assert_expr f_test(.clk(clk), .A(f));
endmodule
module assert_expr(input clk, input A);
always @(posedge clk)
begin
//#1;
if (A == 1'bZ)
begin
$display("ERROR: ASSERTION FAILED in %m:",$time," ",A);
$stop;
end
end
endmodule
frontends/read_verilog_fsm/top.v 0 → 100644
module FSM ( clk,rst, en, ls, rs, stop, busy, finish);
input wire clk;
input wire rst;
input wire en;
input wire ls;
input wire rs;
output wire stop;
output wire busy;
output wire finish;
parameter S0 = 4'b0000, S1 = 4'b0001, S2 = 4'b0010, S3 = 4'b0011, S4 = 4'b0100, S5 = 4'b0101, S6 = 4'b0110, S7 = 4'b0111, S8 = 4'b1000, S9 = 4'b1001, S10 = 4'b1010, S11 = 4'b1011, S12 = 4'b1100, S13 = 4'b1101, S14 = 4'b1110;
reg [3:0] ns, st;
reg [2:0] count;
always @(posedge clk)
begin : CurrstProc
if (rst)
st <= S0;
else
st <= ns;
end
always @*
begin : NextstProc
ns = st;
case (st)
S0: ns = S1;
S1: ns = S2;
S2:
if (rs == 1'b1)
ns = S3;
else
ns = S4;
S3: ns = S1;
S4: if (count > 7)
ns = S10;
else
ns = S5;
S5: if (ls == 1'b0)
ns = S6;
else
ns = S3;
S6:
if (ls == 1'b1)
ns = S7;
else
ns = S8;
S7:
if (ls == 1'b1 && rs == 1'b1)
ns = S5;
else
ns = S13;
S8: ns = S9;
S9: ns = S8;
S10:
if (ls == 1'b1 || rs == 1'b1)
ns = S11;
else
ns = S4;
S11: ns = S12;
S12: ns = S10;
S13: ;
default: ns = S0;
endcase;
end
always @(posedge clk)
if(~rst)
count <= 0;
else
begin
if(st == S4)
if (count > 7)
count <= 0;
else
count <= count + 1;
end
//FSM outputs (combinatorial)
assign stop = (st == S3 || st == S12) ? 1'b1 : 1'b0;
assign finish = (st == S13) ? 1'b1 : 1'b0;
assign busy = (st == S8 || st == S9) ? 1'b1 : 1'b0;
endmodule
module top (
input clk,
input rst,
input en,
input a,
input b,
output s,
output bs,
output f
);
FSM u_FSM ( .clk(clk),
.rst(rst),
.en(en),
.ls(a),
.rs(b),
.stop(s),
.busy(bs),
.finish(f));
endmodule
frontends/read_verilog_generate/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [15:0] D = 1;
reg [3:0] S = 0;
wire M2,M4,M8,M16;
top uut (
.S (S ),
.D (D ),
.M2 (M2 ),
.M4 (M4 ),
.M8 (M8 ),
.M16 (M16 )
);
always @(posedge clk) begin
//#3;
D <= {D[14:0],D[15]};
//D <= D <<< 1;
S <= S + 1;
end
assert_tri m2_test(.en(clk), .A(D[0]|D[1]), .B(M2));
assert_tri m4_test(.en(clk), .A(D[0]|D[1]|D[2]|D[3]), .B(M4));
assert_tri m8_test(.en(clk), .A(!S[3]), .B(M8));
assert_tri m16_test(.en(clk), .A(1'b1), .B(M16));
endmodule
frontends/read_verilog_generate/top.v 0 → 100644
module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
`ifndef BUG
always @(*)
Y = (S)? B : A;
`else
always @(*)
Y = (~S)? B : A;
`endif
endmodule
module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
always @*
begin
casez( S )
0 : Y = D[0];
1 : Y = D[1];
`ifndef BUG
2 : Y = D[2];
`else
2 : Y = D[3];
`endif
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
inout[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
casex( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
`ifndef BUG
4 : Y = D[4];
`else
4 : Y = D[7];
`endif
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
parameter u = 0;
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
genvar index;
generate
for (index=0; index < 8; index=index+1)
begin: gen_code_label
end
endgenerate
genvar index;
generate
case( u )
0 : begin end
1 : begin end
2 : begin end
3 : begin end
endcase
endgenerate
// reg angle;
// case (index)
// //Create the case statement
// 1 :
// begin
// generate
// genvar caseIndex;
// for (caseIndex = 0; caseIndex < 1024; caseIndex=caseIndex+1)
// begin
// caseIndex: angle = 2*pi*caseIndex/1024;
// end
// endgenerate
// end
// endcase
endmodule
frontends/read_verilog_logic/testbench.v 0 → 100644
module testbench;
reg [2:0] in;
reg patt_out = 0;
reg patt_carry_out = 0;
reg patt_out1 = 0;
reg patt_carry_out1 = 0;
wire out;
wire carryout;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 in = 0;
repeat (10000) begin
#5 in = in + 1;
end
$display("OKAY");
end
top uut (
.x(in[0]),
.y(in[1]),
.cin(in[2]),
.A(out),
.cout(carryout)
);
always @(posedge in[0]) begin
patt_out1 <= ~in[1] + &in[2];
end
always @(negedge in[0]) begin
patt_carry_out1 <= in[2] ? |in[1] : patt_out;
end
always @(*) begin
if (in[0])
patt_out <= patt_out|in[1]~&in[2];
end
always @(*) begin
if (~in[0])
patt_carry_out <= patt_carry_out1&in[2]~|in[1];
end
assert_Z out_test(.A(out));
endmodule
frontends/read_verilog_logic/top.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
reg A1,cout1,A2,cout2;
initial begin
A = 0;
cout = 0;
end
`ifndef BUG
always @(posedge x) begin
A1 <= ~y + &cin;
end
always @(posedge x) begin
cout1 <= cin ? |y : ^A;
end
always @(posedge x) begin
A2 <= ~y ^ cin;
end
always @(posedge x) begin
cout2 <= cin ? |y : ~^A;
end
always @(posedge x) begin
A <= A1|y~&cin~^A1;
end
always @(posedge x) begin
cout <= cout1&cin~|y;
end
`else
assign {cout,A} = 1'bZ;
`endif
endmodule
frontends/read_verilog_logic/top_clean.v 0 → 100644
module top
(
input x,
input y,
input cin,
output reg A,
output reg cout
);
initial begin
A = 0;
cout = 0;
end
`ifndef BUG
always @(posedge x) begin
A <= y + cin;
end
always @(negedge x) begin
cout <= y + A;
end
`else
assign {cout,A} = cin - y * x;
`endif
endmodule
frontends/read_verilog_mem/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [7:0] data_a = 0;
reg [7:0] data_b = 0;
reg [5:0] addr_a = 0;
reg [5:0] addr_b = 0;
reg we_a = 0;
reg we_b = 1;
reg re_a = 1;
reg re_b = 1;
wire [7:0] q_a,q_b;
reg mem_init = 0;
top uut (
.data_a(data_a),
.data_b(data_b),
.addr_a(addr_a),
.addr_b(addr_b),
.we_a(we_a),
.we_b(we_b),
.re_a(re_a),
.re_b(re_b),
.clk(clk),
.q_a(q_a),
.q_b(q_b)
);
always @(posedge clk) begin
#3;
data_a <= data_a + 17;
data_b <= data_b + 5;
addr_a <= addr_a + 1;
addr_b <= addr_b + 1;
end
always @(posedge addr_a) begin
#10;
if(addr_a > 6'h3E)
mem_init <= 1;
end
always @(posedge clk) begin
//#3;
we_a <= !we_a;
we_b <= !we_b;
end
uut_mem_checker port_a_test(.clk(clk), .init(mem_init), .en(!we_a), .A(q_a));
uut_mem_checker port_b_test(.clk(clk), .init(mem_init), .en(!we_b), .A(q_b));
endmodule
module uut_mem_checker(input clk, input init, input en, input [7:0] A);
always @(posedge clk)
begin
#1;
if (en == 1 & init == 1 & A === 8'bXXXXXXXX)
begin
$display("ERROR: ASSERTION FAILED in %m:",$time," ",A);
$stop;
end
end
endmodule
frontends/read_verilog_mem/top.v 0 → 100644
module top
(
input [7:0] data_a, data_b,
input [6:1] addr_a, addr_b,
input we_a, we_b, re_a, re_b, clk,
output reg [7:0] q_a, q_b
);
parameter WIDTH=8;
// Declare the RAM variable
reg [WIDTH-1:0] ram[63:0];
initial begin
q_a <= 8'h00;
q_b <= 8'd0;
end
// Port A
always @ (posedge clk)
begin
`ifndef BUG
if (we_a)
`else
if (we_b)
`endif
begin
ram[addr_a] <= data_a;
q_a <= data_a;
end
if (re_b)
begin
q_a <= ram[addr_a];
end
end
// Port B
always @ (posedge clk)
begin
`ifndef BUG
if (we_b)
`else
if (we_a)
`endif
begin
ram[addr_b] <= data_b;
q_b <= data_b;
end
if (re_b)
begin
q_b <= ram[addr_b];
end
end
endmodule
frontends/read_verilog_param_defparam/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [15:0] D = 1;
reg [3:0] S = 0;
wire M2,M4,M8,M16;
top uut (
.S (S ),
.D (D ),
.M2 (M2 ),
.M4 (M4 ),
.M8 (M8 ),
.M16 (M16 )
);
always @(posedge clk) begin
//#3;
D <= {D[14:0],D[15]};
//D <= D <<< 1;
S <= S + 1;
end
assert_tri m2_test(.en(clk), .A(D[0]|D[1]), .B(M2));
assert_tri m4_test(.en(clk), .A(D[0]|D[1]|D[2]|D[3]), .B(M4));
assert_tri m8_test(.en(clk), .A(!S[3]), .B(M8));
assert_tri m16_test(.en(clk), .A(1'b1), .B(M16));
endmodule
frontends/read_verilog_param_defparam/top.v 0 → 100644
module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
`ifndef BUG
always @(*)
Y = (S)? B : A;
`else
always @(*)
Y = (~S)? B : A;
`endif
endmodule
module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
`ifndef BUG
2 : Y = D[2];
`else
2 : Y = D[3];
`endif
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
input[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
`ifndef BUG
4 : Y = D[4];
`else
4 : Y = D[7];
`endif
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
parameter WIDTH = 8;
parameter DEPTH = 64;
parameter LOG2DEPTH = 6;
localparam L = 6;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
defparam u_mux16.WIDTH = 32;
defparam u_mux16.DEPTH = 64;
defparam u_mux16.LOG2DEPTH = 2;
endmodule
frontends/read_verilog_real_value_shift_concat/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [15:0] D = 1;
reg [3:0] S = 0;
wire M2,M4,M8,M16;
top uut (
.S (S ),
.D (D ),
.M2 (M2 ),
.M4 (M4 ),
.M8 (M8 ),
.M16 (M16 )
);
always @(posedge clk) begin
//#3;
D <= {D[14:0],D[15]};
//D <= D <<< 1;
S <= S + 1;
end
assert_tri m2_test(.en(clk), .A(D[0]|D[1]), .B(M2));
assert_tri m4_test(.en(clk), .A(D[0]|D[1]|D[2]|D[3]), .B(M4));
assert_tri m8_test(.en(clk), .A(!S[3]), .B(M8));
assert_tri m16_test(.en(clk), .A(1'b1), .B(M16));
endmodule
frontends/read_verilog_real_value_shift_concat/top.v 0 → 100644
module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
`ifndef BUG
always @(*)
Y = (S)? B : A;
`else
always @(*)
Y = (~S)? B : A;
`endif
endmodule
module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
`ifndef BUG
2 : Y = D[2];
`else
2 : Y = D[3];
`endif
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
input[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
`ifndef BUG
4 : Y = D[4];
`else
4 : Y = D[7];
`endif
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
reg b,c = 1.01;
wire a;
endmodule
module concatenation_operator();
reg [3:0] r_VAL_1 = 4'b0111;
reg [3:0] r_VAL_2 = 4'b1100;
wire [7:0] w_CAT;
reg [3:0] r_UNSIGNED = 4'b0010;
reg signed [3:0] r_SIGNED = 4'b1110;
wire [7:0] w_CAT_2;
wire [15:0] w_CAT_3;
reg r_CLOCK = 1'b0;
reg [7:0] r_SHIFT_REG = 8'h01;
// Demonstrates a common concatenation.
assign w_CAT = {r_VAL_1, r_VAL_2};
// Demonstrates concatenation of different types
assign w_CAT_2 = {r_SIGNED, r_UNSIGNED};
// Demonstrates Verilog padding upper bits with 0.
assign w_CAT_3 = {r_VAL_1, r_VAL_2};
// Generate a clock to drive shift register below
always #1 r_CLOCK = !r_CLOCK;
// Demonstrate Shifting of a 1 through an 8 bit register.
always @(posedge r_CLOCK)
begin
r_SHIFT_REG[7:0] <= {r_SHIFT_REG[6:0], r_SHIFT_REG[7]};
end
endmodule // concatenation_operator
module replication_operator();
reg [3:0] r_VAL_1 = 4'b0111;
parameter c_MULTIPLIER = 4'b0010;
parameter WIDTH = 1;
wire [WIDTH-1:0] connection;
generate
if (WIDTH > 1) begin
assign connection = { {WIDTH-1{1'b0}}, 1'b1 };
end
else begin
assign connection = 1'b1 ;
end
endgenerate
endmodule // replication_operator
module Shift (A, Y1, Y2);
input [7:0] A;
output [7:0] Y1, Y2;
parameter B=3; reg [7:0] Y1, Y2;
always @(A)
begin
Y1=A<<B; //logical shift left
Y2=A>>B; //logical shift right
end
endmodule
module SShift (A, Y1, Y2);
input [7:0] A;
output [7:0] Y1, Y2;
parameter B=3; reg [7:0] Y1, Y2;
always @(A)
begin
Y1=A<<<B; //logical shift left
Y2=A>>>B; //logical shift right
end
endmodule
frontends/read_verilog_real_value_shift_concat/top1.v 0 → 100644
module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
always @(*)
Y = (S)? B : A;
endmodule
module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
input[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
4 : Y = D[4];
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
endmodule
frontends/read_verilog_string/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [15:0] D = 1;
reg [3:0] S = 0;
wire M2,M4,M8,M16;
top uut (
.S (S ),
.D (D ),
.M2 (M2 ),
.M4 (M4 ),
.M8 (M8 ),
.M16 (M16 )
);
always @(posedge clk) begin
//#3;
D <= {D[14:0],D[15]};
//D <= D <<< 1;
S <= S + 1;
end
assert_tri m2_test(.en(clk), .A(D[0]|D[1]), .B(M2));
assert_tri m4_test(.en(clk), .A(D[0]|D[1]|D[2]|D[3]), .B(M4));
assert_tri m8_test(.en(clk), .A(!S[3]), .B(M8));
assert_tri m16_test(.en(clk), .A(1'b1), .B(M16));
endmodule
frontends/read_verilog_string/top.v 0 → 100644
module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
`ifndef BUG
always @(*)
Y = (S)? B : A;
`else
always @(*)
Y = (~S)? B : A;
`endif
endmodule
module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
`ifndef BUG
2 : Y = D[2];
`else
2 : Y = D[3];
`endif
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
input[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
`ifndef BUG
4 : Y = D[4];
`else
4 : Y = D[7];
`endif
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
parameter FILE_OUT= "\"file1.txt\"";
reg [8*10:1] stringvar;
reg [7:0] q;
initial begin
stringvar="Starting";
q <= '1;
end
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
endmodule
frontends/read_verilog_string/top1.v 0 → 100644
module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
always @(*)
Y = (S)? B : A;
endmodule
module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
input[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
4 : Y = D[4];
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
endmodule
frontends/read_verilog_task_func/testbench.v 0 → 100644
module testbench;
reg clk;
initial begin
// $dumpfile("testbench.vcd");
// $dumpvars(0, testbench);
#5 clk = 0;
repeat (10000) begin
#5 clk = 1;
#5 clk = 0;
end
$display("OKAY");
end
reg [15:0] D = 1;
reg [3:0] S = 0;
wire M2,M4,M8,M16;
top uut (
.S (S ),
.D (D ),
.M2 (M2 ),
.M4 (M4 ),
.M8 (M8 ),
.M16 (M16 )
);
always @(posedge clk) begin
//#3;
D <= {D[14:0],D[15]};
//D <= D <<< 1;
S <= S + 1;
end
assert_tri m2_test(.en(clk), .A(D[0]|D[1]), .B(M2));
assert_tri m4_test(.en(clk), .A(D[0]|D[1]|D[2]|D[3]), .B(M4));
assert_tri m8_test(.en(clk), .A(!S[3]), .B(M8));
assert_tri m16_test(.en(clk), .A(1'b1), .B(M16));
endmodule
frontends/read_verilog_task_func/top.v 0 → 100644
module mux2 (S,A,B,Y);
input S;
input A,B;
output reg Y;
`ifndef BUG
always @(*)
Y = (S)? B : A;
`else
always @(*)
Y = (~S)? B : A;
`endif
endmodule
module mux4 ( S, D, Y );
input[1:0] S;
input[3:0] D;
output Y;
reg Y;
wire[1:0] S;
wire[3:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
`ifndef BUG
2 : Y = D[2];
`else
2 : Y = D[3];
`endif
3 : Y = D[3];
endcase
end
endmodule
module mux8 ( S, D, Y );
input[2:0] S;
input[7:0] D;
output Y;
reg Y;
wire[2:0] S;
wire[7:0] D;
always @*
begin
case( S )
0 : Y = D[0];
1 : Y = D[1];
2 : Y = D[2];
3 : Y = D[3];
`ifndef BUG
4 : Y = D[4];
`else
4 : Y = D[7];
`endif
5 : Y = D[5];
6 : Y = D[6];
7 : Y = D[7];
endcase
end
endmodule
module mux16 (D, S, Y);
input [15:0] D;
input [3:0] S;
output Y;
assign Y = D[S];
endmodule
module top (
input [3:0] S,
input [15:0] D,
output M2,M4,M8,M16
);
wire [7:0] temp_a,temp_b;
wire e;
task convert;
input [7:0] temp_in;
output [7:0] temp_out;
begin
temp_out = (9/5) *( temp_in + 32);
end
endtask
function myfunction;
input a, b, c, d;
begin
myfunction = ((a+b) + (c-d));
end
endfunction
always @ (temp_a)
begin
convert (temp_a, temp_b);
end
assign e = myfunction (a,b,c,d);
mux2 u_mux2 (
.S (S[0]),
.A (D[0]),
.B (D[1]),
.Y (M2)
);
mux4 u_mux4 (
.S (S[1:0]),
.D (D[3:0]),
.Y (M4)
);
mux8 u_mux8 (
.S (S[2:0]),
.D (D[7:0]),
.Y (M8)
);
mux16 u_mux16 (
.S (S[3:0]),
.D (D[15:0]),
.Y (M16)
);
endmodule
frontends/scripts/read_ilang_lib.ys 0 → 100644
read_verilog ../top.v
proc
memory
dump -o file.il
write_ilang ilang.ilang
design -reset
read_ilang -lib ilang.ilang
read_ilang ilang.ilang
dump -n -o file1.il
write_verilog synth.v
frontends/scripts/read_ilang_nooverwrite.ys 0 → 100644
read_verilog ../top.v
proc
memory
dump -o file.il
write_ilang ilang.ilang
design -reset
read_ilang -nooverwrite ilang.ilang
dump -n -o file1.il
write_verilog synth.v
frontends/scripts/read_ilang_overwrite.ys 0 → 100644
read_verilog ../top.v
proc
memory
dump -o file.il
write_ilang ilang.ilang
design -reset
read_ilang -overwrite ilang.ilang
dump -n -o file1.il
write_verilog synth.v
frontends/scripts/read_verilog_assert.ys 0 → 100644
read_verilog -sv ../top.v
synth -top top
write_verilog synth.v
design -reset
read_verilog -sv ../top_clean.v
synth -top top
write_verilog synth.v
frontends/scripts/read_verilog_assert_ast1.ys 0 → 100644
read_verilog -sv -dump_ast1 ../top.v
synth -top top
write_verilog synth.v
design -reset
read_verilog -sv ../top_clean.v
synth -top top
write_verilog synth.v
frontends/scripts/read_verilog_assert_ast2.ys 0 → 100644
read_verilog -sv -dump_ast2 ../top.v
synth -top top
write_verilog synth.v
design -reset
read_verilog -sv ../top_clean.v
synth -top top
write_verilog synth.v
frontends/scripts/read_verilog_specify.ys 0 → 100644
read_verilog -specify ../top.v
synth -top top
write_verilog synth.v
frontends/scripts/read_verilog_sv_ast1.ys 0 → 100644
read_verilog -sv -dump_ast1 ../top.v
synth -top top
write_verilog synth.v
frontends/scripts/read_verilog_sv_ast2.ys 0 → 100644
read_verilog -sv -dump_ast2 ../top.v
synth -top top
write_verilog synth.v
misc/Makefile
......@@ -231,4 +231,16 @@ $(eval $(call template,pmuxtree, pmuxtree))
#opt_rmdff_sat
$(eval $(call template,opt_rmdff_sat, opt_rmdff_sat))
#wbflip
$(eval $(call template,wbflip, wbflip wbflip_top))
#pmux2shiftx
$(eval $(call template,pmux2shiftx, pmux2shiftx_norange pmux2shiftx_onehot_shiftx pmux2shiftx_onehot_pmux pmux2shiftx_onehot_ignore pmux2shiftx_min_choices_0 pmux2shiftx_min_choices_3000 pmux2shiftx_min_dens_3000 pmux2shiftx_min_dens_0 pmux2shiftx_vv pmux2shiftx_v pmux2shiftx_top pmux2shiftx ))
$(eval $(call template,pmux2shiftx_2, pmux2shiftx_norange pmux2shiftx_onehot_shiftx pmux2shiftx_onehot_pmux pmux2shiftx_onehot_ignore pmux2shiftx_min_choices_0 pmux2shiftx_min_choices_3000 pmux2shiftx_min_dens_3000 pmux2shiftx_min_dens_0 pmux2shiftx_vv pmux2shiftx_v pmux2shiftx_top pmux2shiftx ))
$(eval $(call template,pmux2shiftx_fsm, pmux2shiftx_norange pmux2shiftx_onehot_shiftx pmux2shiftx_onehot_pmux pmux2shiftx_onehot_ignore pmux2shiftx_min_choices_0 pmux2shiftx_min_choices_3000 pmux2shiftx_min_dens_3000 pmux2shiftx_min_dens_0 pmux2shiftx_vv pmux2shiftx_v pmux2shiftx_top pmux2shiftx ))
#onehot
$(eval $(call template,onehot, onehot onehot_v onehot_vv ))
.PHONY: all clean
misc/onehot/top.v 0 → 100644
module top(C, S, Y);
input C;
input [1:0] S;
output reg [3:0] Y;
initial Y = 0;
always @(posedge C) begin
case (S)
2'b00: Y <= 4'b0001;
2'b01: Y <= 4'b0010;
2'b10: Y <= 4'b0100;
2'b11: Y <= 4'b1000;
endcase
end
endmodule
misc/pmux2shiftx/top.v 0 → 100644
module top(C, S, Y);
input C;
input [1:0] S;
output reg [3:0] Y;
initial Y = 0;
always @(posedge C) begin
case (S)
2'b00: Y <= 4'b0001;
2'b01: Y <= 4'b0010;
2'b10: Y <= 4'b0100;
2'b11: Y <= 4'b1000;
endcase
end
endmodule
misc/pmux2shiftx_2/top.v 0 → 100644
module top(input [7:0] i, output o);
always @*
case (i[6:3])
4: o <= i[0];
3: o <= i[2];
7: o <= i[3];
default: o <= 1'b0;
endcase
endmodule
misc/pmux2shiftx_fsm/top.v 0 → 100644
module fsm (
clock,
reset,
req_0,
req_1,
gnt_0,
gnt_1
);
input clock,reset,req_0,req_1;
output gnt_0,gnt_1;
wire clock,reset,req_0,req_1;
reg gnt_0,gnt_1;
parameter SIZE = 3 ;
parameter IDLE = 3'b001,GNT0 = 3'b010,GNT1 = 3'b100,GNT2 = 3'b101 ;
reg [SIZE-1:0] state;
reg [SIZE-1:0] next_state;
always @ (posedge clock)
begin : FSM
if (reset == 1'b1) begin
state <= #1 IDLE;
gnt_0 <= 0;
gnt_1 <= 0;
end else
case(state)
IDLE : if (req_0 == 1'b1) begin
state <= #1 GNT0;
`ifndef BUG
gnt_0 <= 1;
`else
gnt_0 <= 1'bZ;
`endif
end else if (req_1 == 1'b1) begin
gnt_1 <= 1;
state <= #1 GNT0;
end else begin
state <= #1 IDLE;
end
GNT0 : if (req_0 == 1'b1) begin
state <= #1 GNT0;
end else begin
gnt_0 <= 0;
state <= #1 IDLE;
end
GNT1 : if (req_1 == 1'b1) begin
state <= #1 GNT2;
gnt_1 <= req_0;
end
GNT2 : if (req_0 == 1'b1) begin
state <= #1 GNT1;
gnt_1 <= req_1;
end
default : state <= #1 IDLE;
endcase
end
endmodule
module top (
input clk,
input rst,
input a,
input b,
output g0,
output g1
);
fsm u_fsm ( .clock(clk),
.reset(rst),
.req_0(a),
.req_1(b),
.gnt_0(g0),
.gnt_1(g1));
endmodule
misc/run.sh
......@@ -514,6 +514,12 @@ else
elif [ "$2" = "pmuxtree" ]; then
expected_string="cell \$pmux"
expected="0"
elif [ "$1" = "pmux2shiftx" ]; then
if [ "$2" = "pmux2shiftx_min_choices_3000" ] || \
[ "$2" = "pmux2shiftx_min_dens_3000" ]; then
expected="0"
fi
expected_string="cell \$shiftx"
elif [ "$1" = "qwp" ]; then
expected_string="attribute \\\qwp_position"
elif [ "$2" = "rename" ]; then
......
misc/scripts/onehot.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx
onehot
tee -o result.log dump
misc/scripts/onehot_v.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx
onehot -v
tee -o result.log dump
misc/scripts/onehot_vv.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx
onehot -vv
tee -o result.log dump
misc/scripts/pmux2shiftx.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx
tee -o result.log dump
misc/scripts/pmux2shiftx_min_choices_0.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx -min_choices 0
onehot
tee -o result.log dump
misc/scripts/pmux2shiftx_min_choices_3000.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx -min_choices 3000
tee -o result.log dump
misc/scripts/pmux2shiftx_min_dens_0.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx -min_density 0
onehot
tee -o result.log dump
misc/scripts/pmux2shiftx_min_dens_3000.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx -min_density 3000
tee -o result.log dump
misc/scripts/pmux2shiftx_norange.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx -norange
onehot
tee -o result.log dump
misc/scripts/pmux2shiftx_onehot_ignore.ys 0 → 100644
read_verilog ../top.v
proc
pmux2shiftx -onehot ignore
onehot
tee -o result.log dump
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