•常用的可配置设计方法有:使用parameter 和`define;使用for语句生成多条语句;使用generate生成多条语句和多个实例化;通过工具或脚本生成可配置参数;通过工具或脚本直接生成Verilog代码。 •现在的IP几乎都是可配置性IP。包括处理器的内核(配置支持的指令集,是否有I-cache/D-cache,需要多大的cache,总线的协议类型AXI...
The directive “`define” creates a macro for substitution code. Once the macro is defined, it can be used anywhere in a compilation unit scope, wherever required. It can be called by (`) character followed by the macro name. A macro can be defined with argument(s). Argument(s) ...
Define the default timescale. This is the timescale that is used if there is no other timescale directive in the Verilog source. The compiler default default is "+timescale+1s/1s", which this command file setting can change. The format of the units/precision is the same as that for the...
if($test$plusargs("HELLO"))$display("Hello argument found.") if($test$plusargs("HE"))$display("The HE subset string is detected."); if($test$plusargs("H"))$display("Argument starting with H found."); if($test$plusargs("HELLO_HERE"))$display("Long argument."); if($test$plusargs...
Macro arguments are not supported. `define macros are supported, but they cannot take arguments.Nonstandard Constructs or BehaviorsIcarus Verilog includes some features that are not part of the IEEE1364 standard, but have well-defined meaning, and also sometimes gives nonstandard (but extended) mean...
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For simplicity, define is used to access interface signals. `define DRIV_IF mem_vif.DRIVER.driver_cb `DRIV_IF will point to mem_vif.DRIVER.driver_cb //Reset task, Reset the Interface signals to default/initial values task reset; wait(mem_vif.reset); $display("--- [DRIVER] Reset Star...
A function is meant to do some processing on the input and return a single value, whereas a task is more general and can calculate multiple result values and return them using output and inout type arguments. Tasks can contain simulation time consuming e
Base class handles can only access data members and methods that are declared in the base class, even if an extended handle, with additional data members and methods, is copied to the base class handle. (So, p sequencer can be useful if we define something that is not in uvm_sequencer ...
define DUNITCTE_SPID_E(I) \ assign DUNITCTE_SPID_I(I).ispid_pm_clk = ``I ? DUNIT.ckddr1xgated_zcm1n00nfw : DUNIT1.ckddr1xgated_zcm1n00nfw; `DUNITCTE_SPID_E(0) is this ok to use the argument as the conditional solving operator ? Thanks Vikram saurabh_vlsi July 14, ...