106 lines
4.1 KiB
Systemverilog
106 lines
4.1 KiB
Systemverilog
// Generated by CIRCT firtool-1.139.0
|
|
module AysncFifo(
|
|
input write_io_clk,
|
|
write_io_enq_valid,
|
|
input [7:0] write_io_enq_bits,
|
|
input read_io_clk,
|
|
read_io_deq_ready,
|
|
output read_io_deq_valid,
|
|
output [7:0] read_io_deq_bits
|
|
);
|
|
|
|
wire write_ready;
|
|
reg [10:0] write_ptr;
|
|
wire _GEN = write_ready & write_io_enq_valid;
|
|
reg [10:0] read_ptr;
|
|
reg [10:0] crossed_write_ptr_reg1;
|
|
reg [10:0] crossed_write_ptr_reg2;
|
|
wire _crossed_write_ptr_T_4 =
|
|
crossed_write_ptr_reg2[10] ^ crossed_write_ptr_reg2[9];
|
|
wire _crossed_write_ptr_T_6 = _crossed_write_ptr_T_4 ^ crossed_write_ptr_reg2[8];
|
|
wire _crossed_write_ptr_T_8 = _crossed_write_ptr_T_6 ^ crossed_write_ptr_reg2[7];
|
|
wire _crossed_write_ptr_T_10 =
|
|
_crossed_write_ptr_T_8 ^ crossed_write_ptr_reg2[6];
|
|
wire _crossed_write_ptr_T_12 =
|
|
_crossed_write_ptr_T_10 ^ crossed_write_ptr_reg2[5];
|
|
wire _crossed_write_ptr_T_14 =
|
|
_crossed_write_ptr_T_12 ^ crossed_write_ptr_reg2[4];
|
|
wire _crossed_write_ptr_T_16 =
|
|
_crossed_write_ptr_T_14 ^ crossed_write_ptr_reg2[3];
|
|
wire _crossed_write_ptr_T_18 =
|
|
_crossed_write_ptr_T_16 ^ crossed_write_ptr_reg2[2];
|
|
wire _crossed_write_ptr_T_20 =
|
|
_crossed_write_ptr_T_18 ^ crossed_write_ptr_reg2[1];
|
|
reg [10:0] crossed_read_ptr_reg1;
|
|
reg [10:0] crossed_read_ptr_reg2;
|
|
wire _crossed_read_ptr_T_4 =
|
|
crossed_read_ptr_reg2[10] ^ crossed_read_ptr_reg2[9];
|
|
wire _crossed_read_ptr_T_6 = _crossed_read_ptr_T_4 ^ crossed_read_ptr_reg2[8];
|
|
wire _crossed_read_ptr_T_8 = _crossed_read_ptr_T_6 ^ crossed_read_ptr_reg2[7];
|
|
wire _crossed_read_ptr_T_10 = _crossed_read_ptr_T_8 ^ crossed_read_ptr_reg2[6];
|
|
wire _crossed_read_ptr_T_12 = _crossed_read_ptr_T_10 ^ crossed_read_ptr_reg2[5];
|
|
wire _crossed_read_ptr_T_14 = _crossed_read_ptr_T_12 ^ crossed_read_ptr_reg2[4];
|
|
wire _crossed_read_ptr_T_16 = _crossed_read_ptr_T_14 ^ crossed_read_ptr_reg2[3];
|
|
wire _crossed_read_ptr_T_18 = _crossed_read_ptr_T_16 ^ crossed_read_ptr_reg2[2];
|
|
wire _crossed_read_ptr_T_20 = _crossed_read_ptr_T_18 ^ crossed_read_ptr_reg2[1];
|
|
wire _crossed_read_ptr_T_22 = _crossed_read_ptr_T_20 ^ crossed_read_ptr_reg2[0];
|
|
assign write_ready =
|
|
{crossed_read_ptr_reg2[10],
|
|
_crossed_read_ptr_T_4,
|
|
_crossed_read_ptr_T_6,
|
|
_crossed_read_ptr_T_8,
|
|
_crossed_read_ptr_T_10,
|
|
_crossed_read_ptr_T_12,
|
|
_crossed_read_ptr_T_14,
|
|
_crossed_read_ptr_T_16,
|
|
_crossed_read_ptr_T_18,
|
|
_crossed_read_ptr_T_20,
|
|
_crossed_read_ptr_T_22} == write_ptr
|
|
| {_crossed_read_ptr_T_4,
|
|
_crossed_read_ptr_T_6,
|
|
_crossed_read_ptr_T_8,
|
|
_crossed_read_ptr_T_10,
|
|
_crossed_read_ptr_T_12,
|
|
_crossed_read_ptr_T_14,
|
|
_crossed_read_ptr_T_16,
|
|
_crossed_read_ptr_T_18,
|
|
_crossed_read_ptr_T_20,
|
|
_crossed_read_ptr_T_22} != write_ptr[9:0];
|
|
wire read_valid =
|
|
{crossed_write_ptr_reg2[10],
|
|
_crossed_write_ptr_T_4,
|
|
_crossed_write_ptr_T_6,
|
|
_crossed_write_ptr_T_8,
|
|
_crossed_write_ptr_T_10,
|
|
_crossed_write_ptr_T_12,
|
|
_crossed_write_ptr_T_14,
|
|
_crossed_write_ptr_T_16,
|
|
_crossed_write_ptr_T_18,
|
|
_crossed_write_ptr_T_20,
|
|
_crossed_write_ptr_T_20 ^ crossed_write_ptr_reg2[0]} != read_ptr;
|
|
always @(posedge write_io_clk) begin
|
|
if (_GEN)
|
|
write_ptr <= write_ptr + 11'h1;
|
|
crossed_read_ptr_reg1 <= {read_ptr[10], read_ptr[9:0] ^ read_ptr[10:1]};
|
|
crossed_read_ptr_reg2 <= crossed_read_ptr_reg1;
|
|
end // always @(posedge)
|
|
always @(posedge read_io_clk) begin
|
|
if (read_io_deq_ready & read_valid)
|
|
read_ptr <= read_ptr + 11'h1;
|
|
crossed_write_ptr_reg1 <= {write_ptr[10], write_ptr[9:0] ^ write_ptr[10:1]};
|
|
crossed_write_ptr_reg2 <= crossed_write_ptr_reg1;
|
|
end // always @(posedge)
|
|
mem_1024x8 mem_ext (
|
|
.R0_addr (read_ptr[9:0]),
|
|
.R0_en (1'h1),
|
|
.R0_clk (read_io_clk),
|
|
.R0_data (read_io_deq_bits),
|
|
.W0_addr (write_ptr[9:0]),
|
|
.W0_en (_GEN),
|
|
.W0_clk (write_io_clk),
|
|
.W0_data (write_io_enq_bits)
|
|
);
|
|
assign read_io_deq_valid = read_valid;
|
|
endmodule
|
|
|