[英]How to pass debug messages to a macro in SystemVerilog
I'm attempting the following SystemVerilog:我正在尝试以下 SystemVerilog:
`define DEBUG (ARG) \
`ifdef DEBUG_ON \
$display ARG;
`endif
module my_mod;
logic a;
logic [1:0] b;
assign a = 1'b0;
assign b = 2'b01;
`DEBUG(("a=%x, b=%b", a, b))
endmodule
VCS gives me the following compile error: VCS 给了我以下编译错误:
Error-[SE] Syntax error
Following verilog source has syntax error :
"/media/psf/Home/projects/dep2/hw/rtl/dep_dc/dep_dc_cs.sv", 254 (expanding
macro): token is '('
`DEBUG(("a=%x, b=%b", a, b))
^
#0, DEBUG : "<my_file>":21
full expansion of macro (DEBUG), error at line 1
=>(ARG)
`ifdef DEP_DEBUG_ON
...
According to this answer: How to emulate $display using Verilog Macros?根据这个答案: How to emulate $display using Verilog Macros?
This seems like the correct syntax to me.这对我来说似乎是正确的语法。 Can someone spot anything wrong?有人能发现什么不对吗?
So I found it apparently, the compiler doesn't like spaces between the macro definition and arguments:所以我很明显地发现,编译器不喜欢宏定义和 arguments 之间的空格:
`define DEBUG(ARG) \
`ifdef DEBUG_ON \
$display ARG;
`endif
Works.作品。
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