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display ram after run

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This commit is contained in:
Jörg Thalheim 2015-01-14 10:35:53 +01:00
parent a4d3371128
commit 162bb47d24
1 changed files with 33 additions and 7 deletions
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40
cadence/heron_top_tb/functional/verilog.v
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@ -5,6 +5,7 @@ module heron_top_tb();
`define ASSERT_STATE(state) `ASSERT((fsm_state == state), "not expected state") `define ASSERT_STATE(state) `ASSERT((fsm_state == state), "not expected state")
parameter CYCLE = 50; parameter CYCLE = 50;
parameter COMMA = 8;
wire [31:0] edb; wire [31:0] edb;
wire [31:0] eab; wire [31:0] eab;
@ -22,15 +23,34 @@ always #(CYCLE/2) clk = ~clk;
reg [31:0] ram [0:1023]; reg [31:0] ram [0:1023];
wire ram0; wire [31:0] ram0;
wire ram1; wire [31:0] ram1;
wire ram2; wire [31:0] ram2;
wire [31:0] ram3;
wire [31:0] ram4;
assign ram0 = ram[0]; assign ram0 = ram[0];
assign ram1 = ram[1]; assign ram1 = ram[1];
assign ram2 = ram[2]; assign ram2 = ram[2];
assign ram3 = ram[3];
assign ram4 = ram[4];
assign edb = ram_rd_en ? ram[eab[9:0]] : 32'bz; assign edb = ram_rd_en ? ram[eab[9:0]] : 32'bz;
task displayRam;
reg [15:0] j;
reg [32:0] after_comma;
begin
for (j = 1; j <= ram[0]; j = j + 1) begin
// display fixed point as decimal
after_comma = ((ram[j][COMMA] * 10000) >> 1) +
((ram[j][COMMA - 1] * 10000) >> 2) +
((ram[j][COMMA - 2] * 10000) >> 3) +
((ram[j][COMMA - 3] * 10000) >> 4);
$display("ram[%d] = %d.%d (0x%h)", j, ram[j] >> COMMA, after_comma, ram[j]);
end
end
endtask
always @ (posedge clk) begin always @ (posedge clk) begin
if (ram_wr_en) begin if (ram_wr_en) begin
ram[eab[9:0]] <= edb; ram[eab[9:0]] <= edb;
@ -52,17 +72,21 @@ initial begin
$dumpfile("heron_top_tb.vcd"); $dumpfile("heron_top_tb.vcd");
$dumpvars; $dumpvars;
ram[0] = 3; ram[0] = 4;
ram[3] = 4; ram[4] = 16 << COMMA;
ram[3] = 4 << COMMA;
ram[2] = 0; ram[2] = 0 << COMMA;
ram[1] = 1; ram[1] = 1 << COMMA;
end end
initial begin initial begin
`ASSERT_STATE(`IDLE) `ASSERT_STATE(`IDLE)
#(5*CYCLE) #(5*CYCLE)
load = 1; load = 1;
reset = 1'b1;
#(CYCLE)
reset = 1'b0;
#(CYCLE) #(CYCLE)
load = 0; load = 0;
// load mem[0] -> number of operands // load mem[0] -> number of operands
@ -115,11 +139,13 @@ initial begin
for (i = 0; i < 1000; i = i + 1) begin for (i = 0; i < 1000; i = i + 1) begin
if (ready != 0) begin if (ready != 0) begin
$display("%c[32mSUCCESS: heron_top_tb tests bench finished;%c[0m", 27, 27); $display("%c[32mSUCCESS: heron_top_tb tests bench finished;%c[0m", 27, 27);
displayRam();
$finish; $finish;
end end
#(CYCLE) ; #(CYCLE) ;
end end
$display("%c[31mFAILED: heron_top_tb tests timeout!%c[0m", 27, 27); $display("%c[31mFAILED: heron_top_tb tests timeout!%c[0m", 27, 27);
displayRam();
$finish(1); $finish(1);
end end
endmodule endmodule