mirror of https://github.com/YosysHQ/yosys.git
parent
2270ead09f
commit
fe58790f37
1
Makefile
1
Makefile
|
@ -700,7 +700,6 @@ test: $(TARGETS) $(EXTRA_TARGETS)
|
|||
+cd tests/aiger && bash run-test.sh $(ABCOPT)
|
||||
+cd tests/arch && bash run-test.sh
|
||||
+cd tests/ice40 && bash run-test.sh $(SEEDOPT)
|
||||
+cd tests/ecp5 && bash run-test.sh $(SEEDOPT)
|
||||
@echo ""
|
||||
@echo " Passed \"make test\"."
|
||||
@echo ""
|
||||
|
|
|
@ -1,2 +0,0 @@
|
|||
*.log
|
||||
/run-test.mk
|
|
@ -1,13 +0,0 @@
|
|||
module top
|
||||
(
|
||||
input [3:0] x,
|
||||
input [3:0] y,
|
||||
|
||||
output [3:0] A,
|
||||
output [3:0] B
|
||||
);
|
||||
|
||||
assign A = x + y;
|
||||
assign B = x - y;
|
||||
|
||||
endmodule
|
|
@ -1,8 +0,0 @@
|
|||
read_verilog add_sub.v
|
||||
hierarchy -top top
|
||||
equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
|
||||
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||||
cd top # Constrain all select calls below inside the top module
|
||||
select -assert-count 10 t:LUT4
|
||||
select -assert-none t:LUT4 %% t:* %D
|
||||
|
|
@ -1,91 +0,0 @@
|
|||
module adff
|
||||
( input d, clk, clr, output reg q );
|
||||
initial begin
|
||||
q = 0;
|
||||
end
|
||||
always @( posedge clk, posedge clr )
|
||||
if ( clr )
|
||||
q <= 1'b0;
|
||||
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 )
|
||||
q <= 1'b0;
|
||||
else
|
||||
q <= d;
|
||||
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 )
|
||||
q <= 1'b0;
|
||||
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 )
|
||||
q <= 1'b0;
|
||||
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
|
||||
);
|
||||
|
||||
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 )
|
||||
);
|
||||
|
||||
endmodule
|
|
@ -1,12 +0,0 @@
|
|||
read_verilog adffs.v
|
||||
proc
|
||||
async2sync # converts async flops to a 'sync' variant clocked by a 'super'-clock
|
||||
flatten
|
||||
equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
|
||||
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||||
cd top # Constrain all select calls below inside the top module
|
||||
select -assert-count 1 t:DFF
|
||||
select -assert-count 1 t:DFFN
|
||||
select -assert-count 2 t:DFFSR
|
||||
select -assert-count 7 t:LUT4
|
||||
select -assert-none t:DFF t:DFFN t:DFFSR t:LUT4 %% t:* %D
|
|
@ -1,47 +0,0 @@
|
|||
module assert_dff(input clk, input test, input pat);
|
||||
always @(posedge clk)
|
||||
begin
|
||||
#1;
|
||||
if (test != pat)
|
||||
begin
|
||||
$display("ERROR: ASSERTION FAILED in %m:",$time);
|
||||
$stop;
|
||||
end
|
||||
end
|
||||
endmodule
|
||||
|
||||
module assert_tri(input en, input A, input B);
|
||||
always @(posedge en)
|
||||
begin
|
||||
#1;
|
||||
if (A !== B)
|
||||
begin
|
||||
$display("ERROR: ASSERTION FAILED in %m:",$time," ",A," ",B);
|
||||
$stop;
|
||||
end
|
||||
end
|
||||
endmodule
|
||||
|
||||
module assert_Z(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
|
||||
|
||||
module assert_comb(input A, input B);
|
||||
always @(*)
|
||||
begin
|
||||
#1;
|
||||
if (A !== B)
|
||||
begin
|
||||
$display("ERROR: ASSERTION FAILED in %m:",$time," ",A," ",B);
|
||||
$stop;
|
||||
end
|
||||
end
|
||||
endmodule
|
|
@ -1,37 +0,0 @@
|
|||
module dff
|
||||
( input d, clk, output reg q );
|
||||
always @( posedge clk )
|
||||
q <= d;
|
||||
endmodule
|
||||
|
||||
module dffe
|
||||
( input d, clk, en, output reg q );
|
||||
initial begin
|
||||
q = 0;
|
||||
end
|
||||
always @( posedge clk )
|
||||
if ( en )
|
||||
q <= d;
|
||||
endmodule
|
||||
|
||||
module top (
|
||||
input clk,
|
||||
input en,
|
||||
input a,
|
||||
output b,b1,
|
||||
);
|
||||
|
||||
dff u_dff (
|
||||
.clk (clk ),
|
||||
.d (a ),
|
||||
.q (b )
|
||||
);
|
||||
|
||||
dffe u_ndffe (
|
||||
.clk (clk ),
|
||||
.en (en),
|
||||
.d (a ),
|
||||
.q (b1 )
|
||||
);
|
||||
|
||||
endmodule
|
|
@ -1,10 +0,0 @@
|
|||
read_verilog dffs.v
|
||||
hierarchy -top top
|
||||
proc
|
||||
flatten
|
||||
equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
|
||||
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||||
cd top # Constrain all select calls below inside the top module
|
||||
select -assert-count 1 t:DFF
|
||||
select -assert-count 1 t:DFFE
|
||||
select -assert-none t:DFF t:DFFE %% t:* %D
|
|
@ -1,13 +0,0 @@
|
|||
module top
|
||||
(
|
||||
input [3:0] x,
|
||||
input [3:0] y,
|
||||
|
||||
output [3:0] A,
|
||||
output [3:0] B
|
||||
);
|
||||
|
||||
assign A = x % y;
|
||||
assign B = x / y;
|
||||
|
||||
endmodule
|
|
@ -1,12 +0,0 @@
|
|||
read_verilog div_mod.v
|
||||
hierarchy -top top
|
||||
flatten
|
||||
equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
|
||||
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||||
cd top # Constrain all select calls below inside the top module
|
||||
|
||||
select -assert-count 28 t:CCU2C
|
||||
select -assert-count 45 t:L6MUX21
|
||||
select -assert-count 183 t:LUT4
|
||||
select -assert-count 79 t:PFUMX
|
||||
select -assert-none t:LUT4 t:CCU2C t:L6MUX21 t:PFUMX %% t:* %D
|
|
@ -1,20 +0,0 @@
|
|||
module top (din, write_en, waddr, wclk, raddr, rclk, dout);
|
||||
parameter addr_width = 8;
|
||||
parameter data_width = 8;
|
||||
input [addr_width-1:0] waddr, raddr;
|
||||
input [data_width-1:0] din;
|
||||
input write_en, wclk, rclk;
|
||||
output [data_width-1:0] dout;
|
||||
reg [data_width-1:0] dout;
|
||||
reg [data_width-1:0] mem [(1<<addr_width)-1:0]
|
||||
/* synthesis syn_ramstyle = "no_rw_check" */ ;
|
||||
always @(posedge wclk) // Write memory.
|
||||
begin
|
||||
if (write_en)
|
||||
mem[waddr] <= din; // Using write address bus.
|
||||
end
|
||||
always @(posedge rclk) // Read memory.
|
||||
begin
|
||||
dout <= mem[raddr]; // Using read address bus.
|
||||
end
|
||||
endmodule
|
|
@ -1,18 +0,0 @@
|
|||
read_verilog dpram.v
|
||||
hierarchy -top top
|
||||
proc
|
||||
memory -nomap
|
||||
equiv_opt -run :prove -map +/ecp5/cells_sim.v synth_ecp5
|
||||
memory
|
||||
opt -full
|
||||
|
||||
# TODO
|
||||
#equiv_opt -run prove: -assert null
|
||||
miter -equiv -flatten -make_assert -make_outputs gold gate miter
|
||||
#sat -verify -prove-asserts -tempinduct -show-inputs -show-outputs miter
|
||||
|
||||
design -load postopt
|
||||
cd top
|
||||
select -assert-count 1 t:DP16KD
|
||||
select -assert-none t:DP16KD %% t:* %D
|
||||
write_verilog dpram_synth.v
|
|
@ -1,81 +0,0 @@
|
|||
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
|
||||
end
|
||||
|
||||
|
||||
reg [7:0] data_a = 0;
|
||||
reg [7:0] addr_a = 0;
|
||||
reg [7:0] addr_b = 0;
|
||||
reg we_a = 0;
|
||||
reg re_a = 1;
|
||||
wire [7:0] q_a;
|
||||
reg mem_init = 0;
|
||||
|
||||
reg [7:0] pq_a;
|
||||
|
||||
always @(posedge clk) begin
|
||||
#3;
|
||||
data_a <= data_a + 17;
|
||||
|
||||
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;
|
||||
end
|
||||
|
||||
reg [7:0] mem [(1<<8)-1:0];
|
||||
|
||||
always @(posedge clk) // Write memory.
|
||||
begin
|
||||
if (we_a)
|
||||
mem[addr_a] <= data_a; // Using write address bus.
|
||||
end
|
||||
always @(posedge clk) // Read memory.
|
||||
begin
|
||||
pq_a <= mem[addr_b]; // Using read address bus.
|
||||
end
|
||||
|
||||
top uut (
|
||||
.din(data_a),
|
||||
.write_en(we_a),
|
||||
.waddr(addr_a),
|
||||
.wclk(clk),
|
||||
.raddr(addr_b),
|
||||
.rclk(clk),
|
||||
.dout(q_a)
|
||||
);
|
||||
|
||||
uut_mem_checker port_a_test(.clk(clk), .init(mem_init), .en(!we_a), .A(q_a), .B(pq_a));
|
||||
|
||||
endmodule
|
||||
|
||||
module uut_mem_checker(input clk, input init, input en, input [7:0] A, input [7:0] B);
|
||||
always @(posedge clk)
|
||||
begin
|
||||
#1;
|
||||
if (en == 1 & init == 1 & A !== B)
|
||||
begin
|
||||
$display("ERROR: ASSERTION FAILED in %m:",$time," ",A," ",B);
|
||||
$stop;
|
||||
end
|
||||
end
|
||||
endmodule
|
|
@ -1,58 +0,0 @@
|
|||
module latchp
|
||||
( input d, clk, en, output reg q );
|
||||
always @*
|
||||
if ( en )
|
||||
q <= d;
|
||||
endmodule
|
||||
|
||||
module latchn
|
||||
( input d, clk, en, output reg q );
|
||||
always @*
|
||||
if ( !en )
|
||||
q <= d;
|
||||
endmodule
|
||||
|
||||
module latchsr
|
||||
( input d, clk, en, clr, pre, output reg q );
|
||||
always @*
|
||||
if ( clr )
|
||||
q <= 1'b0;
|
||||
else if ( pre )
|
||||
q <= 1'b1;
|
||||
else if ( en )
|
||||
q <= d;
|
||||
endmodule
|
||||
|
||||
|
||||
module top (
|
||||
input clk,
|
||||
input clr,
|
||||
input pre,
|
||||
input a,
|
||||
output b,b1,b2
|
||||
);
|
||||
|
||||
|
||||
latchp u_latchp (
|
||||
.en (clk ),
|
||||
.d (a ),
|
||||
.q (b )
|
||||
);
|
||||
|
||||
|
||||
latchn u_latchn (
|
||||
.en (clk ),
|
||||
.d (a ),
|
||||
.q (b1 )
|
||||
);
|
||||
|
||||
|
||||
latchsr u_latchsr (
|
||||
.en (clk ),
|
||||
.clr (clr),
|
||||
.pre (pre),
|
||||
.d (a ),
|
||||
.q (b2 )
|
||||
);
|
||||
|
||||
endmodule
|
|
@ -1,7 +0,0 @@
|
|||
read_verilog latches.v
|
||||
synth_ecp5
|
||||
cd top
|
||||
select -assert-count 4 t:LUT4
|
||||
select -assert-count 1 t:PFUMX
|
||||
select -assert-none t:LUT4 t:PFUMX %% t:* %D
|
||||
write_verilog latches_synth.v
|
|
@ -1,57 +0,0 @@
|
|||
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
|
||||
end
|
||||
|
||||
|
||||
reg [2:0] dinA = 0;
|
||||
wire doutB,doutB1,doutB2;
|
||||
reg lat,latn,latsr = 0;
|
||||
|
||||
top uut (
|
||||
.clk (clk ),
|
||||
.a (dinA[0] ),
|
||||
.pre (dinA[1] ),
|
||||
.clr (dinA[2] ),
|
||||
.b (doutB ),
|
||||
.b1 (doutB1 ),
|
||||
.b2 (doutB2 )
|
||||
);
|
||||
|
||||
always @(posedge clk) begin
|
||||
#3;
|
||||
dinA <= dinA + 1;
|
||||
end
|
||||
|
||||
always @*
|
||||
if ( clk )
|
||||
lat <= dinA[0];
|
||||
|
||||
|
||||
always @*
|
||||
if ( !clk )
|
||||
latn <= dinA[0];
|
||||
|
||||
|
||||
always @*
|
||||
if ( dinA[2] )
|
||||
latsr <= 1'b0;
|
||||
else if ( dinA[1] )
|
||||
latsr <= 1'b1;
|
||||
else if ( clk )
|
||||
latsr <= dinA[0];
|
||||
|
||||
assert_dff lat_test(.clk(clk), .test(doutB), .pat(lat));
|
||||
assert_dff latn_test(.clk(clk), .test(doutB1), .pat(latn));
|
||||
assert_dff latsr_test(.clk(clk), .test(doutB2), .pat(latsr));
|
||||
|
||||
endmodule
|
|
@ -1,22 +0,0 @@
|
|||
module top(clk,a,b,c,set);
|
||||
parameter A_WIDTH = 4;
|
||||
parameter B_WIDTH = 3;
|
||||
input set;
|
||||
input clk;
|
||||
input signed [(A_WIDTH - 1):0] a;
|
||||
input signed [(B_WIDTH - 1):0] b;
|
||||
output signed [(A_WIDTH + B_WIDTH - 1):0] c;
|
||||
reg [(A_WIDTH + B_WIDTH - 1):0] reg_tmp_c;
|
||||
assign c = reg_tmp_c;
|
||||
always @(posedge clk)
|
||||
begin
|
||||
if(set)
|
||||
begin
|
||||
reg_tmp_c <= 0;
|
||||
end
|
||||
else
|
||||
begin
|
||||
reg_tmp_c <= a * b + c;
|
||||
end
|
||||
end
|
||||
endmodule
|
|
@ -1,10 +0,0 @@
|
|||
read_verilog macc.v
|
||||
proc
|
||||
hierarchy -top top
|
||||
equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
|
||||
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||||
cd top # Constrain all select calls below inside the top module
|
||||
select -assert-count 41 t:LUT4
|
||||
select -assert-count 6 t:CARRY
|
||||
select -assert-count 7 t:DFFSR
|
||||
select -assert-none t:LUT4 t:CARRY t:DFFSR %% t:* %D
|
|
@ -1,21 +0,0 @@
|
|||
module top
|
||||
(
|
||||
input [7:0] data_a,
|
||||
input [6:1] addr_a,
|
||||
input we_a, clk,
|
||||
output reg [7:0] q_a
|
||||
);
|
||||
// Declare the RAM variable
|
||||
reg [7:0] ram[63:0];
|
||||
|
||||
// Port A
|
||||
always @ (posedge clk)
|
||||
begin
|
||||
if (we_a)
|
||||
begin
|
||||
ram[addr_a] <= data_a;
|
||||
q_a <= data_a;
|
||||
end
|
||||
q_a <= ram[addr_a];
|
||||
end
|
||||
endmodule
|
|
@ -1,22 +0,0 @@
|
|||
read_verilog memory.v
|
||||
hierarchy -top top
|
||||
proc
|
||||
memory -nomap
|
||||
equiv_opt -run :prove -map +/ecp5/cells_sim.v synth_ecp5
|
||||
memory
|
||||
opt -full
|
||||
|
||||
# TODO
|
||||
#equiv_opt -run prove: -assert null
|
||||
miter -equiv -flatten -make_assert -make_outputs gold gate miter
|
||||
#sat -verify -prove-asserts -tempinduct -show-inputs -show-outputs miter
|
||||
|
||||
design -load postopt
|
||||
cd top
|
||||
select -assert-count 24 t:L6MUX21
|
||||
select -assert-count 71 t:LUT4
|
||||
select -assert-count 32 t:PFUMX
|
||||
select -assert-count 8 t:TRELLIS_DPR16X4
|
||||
select -assert-count 35 t:TRELLIS_FF
|
||||
select -assert-none t:L6MUX21 t:LUT4 t:PFUMX t:TRELLIS_DPR16X4 t:TRELLIS_FF %% t:* %D
|
||||
write_verilog memory_synth.v
|
|
@ -1,79 +0,0 @@
|
|||
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
|
||||
end
|
||||
|
||||
|
||||
reg [7:0] data_a = 0;
|
||||
reg [5:0] addr_a = 0;
|
||||
reg we_a = 0;
|
||||
reg re_a = 1;
|
||||
wire [7:0] q_a;
|
||||
reg mem_init = 0;
|
||||
|
||||
reg [7:0] pq_a;
|
||||
|
||||
top uut (
|
||||
.data_a(data_a),
|
||||
.addr_a(addr_a),
|
||||
.we_a(we_a),
|
||||
.clk(clk),
|
||||
.q_a(q_a)
|
||||
);
|
||||
|
||||
always @(posedge clk) begin
|
||||
#3;
|
||||
data_a <= data_a + 17;
|
||||
|
||||
addr_a <= addr_a + 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;
|
||||
end
|
||||
|
||||
// Declare the RAM variable for check
|
||||
reg [7:0] ram[63:0];
|
||||
|
||||
// Port A for check
|
||||
always @ (posedge clk)
|
||||
begin
|
||||
if (we_a)
|
||||
begin
|
||||
ram[addr_a] <= data_a;
|
||||
pq_a <= data_a;
|
||||
end
|
||||
pq_a <= ram[addr_a];
|
||||
end
|
||||
|
||||
uut_mem_checker port_a_test(.clk(clk), .init(mem_init), .en(!we_a), .A(q_a), .B(pq_a));
|
||||
|
||||
endmodule
|
||||
|
||||
module uut_mem_checker(input clk, input init, input en, input [7:0] A, input [7:0] B);
|
||||
always @(posedge clk)
|
||||
begin
|
||||
#1;
|
||||
if (en == 1 & init == 1 & A !== B)
|
||||
begin
|
||||
$display("ERROR: ASSERTION FAILED in %m:",$time," ",A," ",B);
|
||||
$stop;
|
||||
end
|
||||
end
|
||||
endmodule
|
|
@ -1,11 +0,0 @@
|
|||
module top
|
||||
(
|
||||
input [5:0] x,
|
||||
input [5:0] y,
|
||||
|
||||
output [11:0] A,
|
||||
);
|
||||
|
||||
assign A = x * y;
|
||||
|
||||
endmodule
|
|
@ -1,11 +0,0 @@
|
|||
read_verilog mul.v
|
||||
hierarchy -top top
|
||||
equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
|
||||
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||||
cd top # Constrain all select calls below inside the top module
|
||||
select -assert-count 6 t:CCU2C
|
||||
select -assert-count 46 t:L6MUX21
|
||||
select -assert-count 169 t:LUT4
|
||||
select -assert-count 72 t:PFUMX
|
||||
|
||||
select -assert-none t:CCU2C t:L6MUX21 t:LUT4 t:PFUMX %% t:* %D
|
100
tests/ecp5/mux.v
100
tests/ecp5/mux.v
|
@ -1,100 +0,0 @@
|
|||
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
|
|
@ -1,11 +0,0 @@
|
|||
read_verilog mux.v
|
||||
proc
|
||||
flatten
|
||||
equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
|
||||
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||||
cd top # Constrain all select calls below inside the top module
|
||||
select -assert-count 30 t:LUT4
|
||||
select -assert-count 7 t:L6MUX21
|
||||
select -assert-count 12 t:PFUMX
|
||||
|
||||
select -assert-none t:LUT4 t:L6MUX21 t:PFUMX %% t:* %D
|
|
@ -1,15 +0,0 @@
|
|||
module top(data, addr);
|
||||
output [3:0] data;
|
||||
input [4:0] addr;
|
||||
always @(addr) begin
|
||||
case (addr)
|
||||
0 : data = 'h4;
|
||||
1 : data = 'h9;
|
||||
2 : data = 'h1;
|
||||
15 : data = 'h8;
|
||||
16 : data = 'h1;
|
||||
17 : data = 'h0;
|
||||
default : data = 'h0;
|
||||
endcase
|
||||
end
|
||||
endmodule
|
|
@ -1,9 +0,0 @@
|
|||
read_verilog rom.v
|
||||
proc
|
||||
flatten
|
||||
equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
|
||||
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||||
cd top # Constrain all select calls below inside the top module
|
||||
select -assert-count 6 t:LUT4
|
||||
select -assert-count 3 t:PFUMX
|
||||
select -assert-none t:LUT4 t:PFUMX %% t:* %D
|
|
@ -1,33 +0,0 @@
|
|||
set -e
|
||||
if [ -f "../../techlibs/common/simcells.v" ]; then
|
||||
COMMON_PREFIX=../../techlibs/common
|
||||
TECHLIBS_PREFIX=../../techlibs
|
||||
else
|
||||
COMMON_PREFIX=/usr/local/share/yosys
|
||||
TECHLIBS_PREFIX=/usr/local/share/yosys
|
||||
fi
|
||||
{
|
||||
echo "all::"
|
||||
for x in *.ys; do
|
||||
echo "all:: run-$x"
|
||||
echo "run-$x:"
|
||||
echo " @echo 'Running $x..'"
|
||||
echo " @../../yosys -ql ${x%.ys}.log $x -w 'Yosys has only limited support for tri-state logic at the moment.'"
|
||||
done
|
||||
for t in *_tb.v; do
|
||||
echo "all:: run-$t"
|
||||
echo "run-$t: ${t%_tb.v}_synth.v"
|
||||
echo " @echo 'Running $t..'"
|
||||
echo " @iverilog -o ${t%_tb.v}_testbench $t ${t%_tb.v}_synth.v common.v $TECHLIBS_PREFIX/ecp5/cells_sim.v"
|
||||
echo " @vvp -N ${t%_tb.v}_testbench"
|
||||
done
|
||||
for s in *.sh; do
|
||||
if [ "$s" != "run-test.sh" ]; then
|
||||
echo "all:: run-$s"
|
||||
echo "run-$s:"
|
||||
echo " @echo 'Running $s..'"
|
||||
echo " @bash $s"
|
||||
fi
|
||||
done
|
||||
} > run-test.mk
|
||||
exec ${MAKE:-make} -f run-test.mk
|
|
@ -1,23 +0,0 @@
|
|||
module tristate (en, i, o);
|
||||
input en;
|
||||
input i;
|
||||
output o;
|
||||
|
||||
assign o = en ? i : 1'bz;
|
||||
|
||||
endmodule
|
||||
|
||||
|
||||
module top (
|
||||
input en,
|
||||
input a,
|
||||
output b
|
||||
);
|
||||
|
||||
tristate u_tri (
|
||||
.en (en ),
|
||||
.i (a ),
|
||||
.o (b )
|
||||
);
|
||||
|
||||
endmodule
|
|
@ -1,9 +0,0 @@
|
|||
read_verilog tribuf.v
|
||||
hierarchy -top top
|
||||
proc
|
||||
flatten
|
||||
equiv_opt -assert -map +/ecp5/cells_sim.v -map +/simcells.v synth_ecp5 # equivalency check
|
||||
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
|
||||
cd top # Constrain all select calls below inside the top module
|
||||
select -assert-count 1 t:$_TBUF_
|
||||
select -assert-none t:$_TBUF_ %% t:* %D
|
Loading…
Reference in New Issue