Verilog预处理器字符串连接
我试图在Altera Quartus中使用Verilog预处理器宏,要求在变量名中使用参数值 例如:Verilog预处理器字符串连接,verilog,Verilog,我试图在Altera Quartus中使用Verilog预处理器宏,要求在变量名中使用参数值 例如: `define INCREMENT_COUNTER(parsername) \ __parsername_counter <= __parsername_counter + 4'h1; 但是,parsername未正确替换并返回 __parsername_counter <= __parsername_counter + 4'h1; \uuuu parsername\u coun
`define INCREMENT_COUNTER(parsername) \
__parsername_counter <= __parsername_counter + 4'h1;
但是,parsername未正确替换并返回
__parsername_counter <= __parsername_counter + 4'h1;
\uuuu parsername\u counter``在VCS和Incisive中工作,但我不知道Quartus:
module tb;
reg clk = 0;
always #5 clk = ~clk;
reg [3:0] __foo_counter = 0;
`define INC_CNT(name) __``name``_counter <= __``name``_counter + 1;
always @(posedge clk) `INC_CNT(foo)
initial begin
$monitor($time, " clk=%b cnt=%d", clk, __foo_counter);
#55 $finish;
end
endmodule
/*
Outputs:
0 clk=0 cnt= 0
5 clk=1 cnt= 1
10 clk=0 cnt= 1
15 clk=1 cnt= 2
20 clk=0 cnt= 2
25 clk=1 cnt= 3
30 clk=0 cnt= 3
35 clk=1 cnt= 4
40 clk=0 cnt= 4
45 clk=1 cnt= 5
50 clk=0 cnt= 5
*/
模块tb;
reg clk=0;
始终#5 clk=~clk;
reg[3:0]\uuuuufoo\u计数器=0;
`define INC_CNT(name){name`}counter我知道这有点旧,但正确的答案是在SystemVerilog之前可以使用连接
因此,如果有人想使用它:
设置->分析系统和合成设置->Verilog HDL并检查系统Verilog
有些模拟器可能会使用它,而不考虑所选的标准(如Icarus),这可能会有点混乱。我能够使用{“a”,“b”}
语法在宏中连接参数
例如:
`define DEFAULT_CS_PATH(x,y) {"../../../fpgas/cs/", x, "/build/tmp/scalar", y, ".mif"}
cs20_top #(
.SCALAR_MEM_0 (`DEFAULT_CS_PATH("cs20","0")),
.SCALAR_MEM_1 (`DEFAULT_CS_PATH("cs20","1")),
.SCALAR_MEM_2 (`DEFAULT_CS_PATH("cs20","2")),
.SCALAR_MEM_3 (`DEFAULT_CS_PATH("cs20","3")))
cs20_top (
.CLK (clk),
...
);
module tb;
reg clk = 0;
always #5 clk = ~clk;
reg [3:0] __foo_counter = 0;
`define INC_CNT(name) __``name``_counter <= __``name``_counter + 1;
always @(posedge clk) `INC_CNT(foo)
initial begin
$monitor($time, " clk=%b cnt=%d", clk, __foo_counter);
#55 $finish;
end
endmodule
/*
Outputs:
0 clk=0 cnt= 0
5 clk=1 cnt= 1
10 clk=0 cnt= 1
15 clk=1 cnt= 2
20 clk=0 cnt= 2
25 clk=1 cnt= 3
30 clk=0 cnt= 3
35 clk=1 cnt= 4
40 clk=0 cnt= 4
45 clk=1 cnt= 5
50 clk=0 cnt= 5
*/
`define DEFAULT_CS_PATH(x,y) {"../../../fpgas/cs/", x, "/build/tmp/scalar", y, ".mif"}
cs20_top #(
.SCALAR_MEM_0 (`DEFAULT_CS_PATH("cs20","0")),
.SCALAR_MEM_1 (`DEFAULT_CS_PATH("cs20","1")),
.SCALAR_MEM_2 (`DEFAULT_CS_PATH("cs20","2")),
.SCALAR_MEM_3 (`DEFAULT_CS_PATH("cs20","3")))
cs20_top (
.CLK (clk),
...
);