[英]Verilog Testbench Errors for Comparator
我是Verilog的新手,我需要为a
等于,小于和大于b
时做一个8位比较器。 这是代码的内容(不会给我任何错误):
module MagnitudeComparator8bit (input signed [7:0]a,
input signed [7:0]b,
output eq,
output lt,
output gt);
assign eq = a == b;
assign lt = a < b;
assign gt = a > b;
endmodule
这就是测试平台的功能,但是当我运行模拟时,我遇到了多个错误,但是我不确定哪里出错了。 有什么帮助吗?
module MagnitudeComparatorTestbench;
reg [7:0] a, b;
wire eq, lt, gt;
MagnitudeComparator8bit uut(
.a(a),
.b(b),
.eq(eq),
.lt(lt),
.gt(gt)
);
initial begin
$monitor (“%d %b %b %d %d %d”, $time, a, b, eq, lt, gt);
a=8’b11110000;
b=8’b11110000;
#10 a=8’b1001001;
b=8’b10101010;
#10 a=8’b11001100;
b=8’b10101000;
#10 $finish
end
endmodule
错误:
testbench.sv:14: error: unmatched character (hex ?)
testbench.sv:e: error: unmatched character (hex ?)
testbench.sv:e: error: unmatched character (hex ?)
testbench.sv:e: syntax error
testbench.sv:e: error: unmatched character (hex ?)
testbench.sv:e: error: unmatched character (hex ?)
testbench.sv:e: error: unmatched character (hex ?)
testbench.sv:e: error: malformed statement
testbench.sv:f: error: unmatched character (hex ?)
testbench.sv:f: error: unmatched character (hex ?)
testbench.sv:f: error: unmatched character (hex ?)
testbench.sv:f: syntax error
testbench.sv:f: error: malformed statement
testbench.sv:10: error: unmatched character (hex ?)
testbench.sv:10: error: unmatched character (hex ?)
testbench.sv:10: error: unmatched character (hex ?)
testbench.sv:10: syntax error
testbench.sv:10: error: malformed statement
testbench.sv:11: error: unmatched character (hex ?)
testbench.sv:11: error: unmatched character (hex ?)
testbench.sv:11: error: unmatched character (hex ?)
testbench.sv:11: syntax error
testbench.sv:11: error: malformed statement
testbench.sv:12: error: unmatched character (hex ?)
testbench.sv:12: error: unmatched character (hex ?)
testbench.sv:12: error: unmatched character (hex ?)
testbench.sv:12: syntax error
testbench.sv:12: error: malformed statement
testbench.sv:13: error: unmatched character (hex ?)
testbench.sv:13: error: unmatched character (hex ?)
testbench.sv:13: error: unmatched character (hex ?)
testbench.sv:13: syntax error
testbench.sv:13: error: malformed statement
testbench.sv:14: error: unmatched character (hex ?)
testbench.sv:14: error: unmatched character (hex ?)
testbench.sv:14: error: unmatched character (hex ?)
testbench.sv:14: syntax error
testbench.sv:14: error: malformed statement
testbench.sv:16: syntax error
Exit code expected: 0, received: 40
您的帖子中有奇怪的引号字符。 在我复制粘贴代码后,这些错误给了我错误。 我固定了报价。 复制此代码:
module MagnitudeComparatorTestbench;
reg [7:0] a, b;
wire eq, lt, gt;
MagnitudeComparator8bit uut(
.a(a),
.b(b),
.eq(eq),
.lt(lt),
.gt(gt)
);
initial begin
$monitor ("%d %b %b %d %d %d", $time, a, b, eq, lt, gt);
a=8'b11110000;
b=8'b11110000;
#10 a=8'b1001001;
b=8'b10101010;
#10 a=8'b11001100;
b=8'b10101000;
#10 $finish;
end
endmodule
在$ finish之后,我还添加了一个半符号。
我尝试了您的代码,唯一的问题是$ finish之后缺少分号。 所以#10 $ finish;
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