picorv32/scripts/smtbmc/mulcmp.v

88 lines
1.9 KiB
Verilog

module testbench(input clk, mem_ready_0, mem_ready_1);
reg resetn = 0;
always @(posedge clk)
resetn <= 1;
reg pcpi_valid_0 = 1;
reg pcpi_valid_1 = 1;
wire [31:0] pcpi_insn = $anyconst;
wire [31:0] pcpi_rs1 = $anyconst;
wire [31:0] pcpi_rs2 = $anyconst;
wire pcpi_wr_0;
wire [31:0] pcpi_rd_0;
wire pcpi_wait_0;
wire pcpi_ready_0;
wire pcpi_wr_1;
wire [31:0] pcpi_rd_1;
wire pcpi_wait_1;
wire pcpi_ready_1;
reg pcpi_wr_ref;
reg [31:0] pcpi_rd_ref;
reg pcpi_ready_ref = 0;
picorv32_pcpi_mul mul_0 (
.clk (clk ),
.resetn (resetn ),
.pcpi_valid(pcpi_valid_0),
.pcpi_insn (pcpi_insn ),
.pcpi_rs1 (pcpi_rs1 ),
.pcpi_rs2 (pcpi_rs2 ),
.pcpi_wr (pcpi_wr_0 ),
.pcpi_rd (pcpi_rd_0 ),
.pcpi_wait (pcpi_wait_0 ),
.pcpi_ready(pcpi_ready_0),
);
picorv32_pcpi_fast_mul mul_1 (
.clk (clk ),
.resetn (resetn ),
.pcpi_valid(pcpi_valid_1),
.pcpi_insn (pcpi_insn ),
.pcpi_rs1 (pcpi_rs1 ),
.pcpi_rs2 (pcpi_rs2 ),
.pcpi_wr (pcpi_wr_1 ),
.pcpi_rd (pcpi_rd_1 ),
.pcpi_wait (pcpi_wait_1 ),
.pcpi_ready(pcpi_ready_1),
);
always @(posedge clk) begin
if (resetn) begin
if (pcpi_ready_0 && pcpi_ready_1) begin
assert(pcpi_wr_0 == pcpi_wr_1);
assert(pcpi_rd_0 == pcpi_rd_1);
end
if (pcpi_ready_0) begin
pcpi_valid_0 <= 0;
pcpi_wr_ref <= pcpi_wr_0;
pcpi_rd_ref <= pcpi_rd_0;
pcpi_ready_ref <= 1;
if (pcpi_ready_ref) begin
assert(pcpi_wr_0 == pcpi_wr_ref);
assert(pcpi_rd_0 == pcpi_rd_ref);
end
end
if (pcpi_ready_1) begin
pcpi_valid_1 <= 0;
pcpi_wr_ref <= pcpi_wr_1;
pcpi_rd_ref <= pcpi_rd_1;
pcpi_ready_ref <= 1;
if (pcpi_ready_ref) begin
assert(pcpi_wr_1 == pcpi_wr_ref);
assert(pcpi_rd_1 == pcpi_rd_ref);
end
end
end
end
endmodule