在VHDL中,生成语句(Generate Statement)用于在设计中生成重复的结构,if语句是生成语句中的一种条件语句。 在生成语句中的if语句中,可以根据条件来控制生成的结构是否被实例化。if语句的语法如下: 代码语言:txt 复制 if condition generate -- 生成的结构 else -- 其他情况下的结构 end generate; 在if语句中,condit...
if any(A > limit) disp('There is at least one value above the limit.') else disp('All values are below the limit.') end There is at least one value above the limit. Test Arrays for Equality Copy Code Copy Command Compare arrays using isequal rather than the == operator to test...
for_generate与for_loop语句很类似,但二者有区别。for_loop语句的循环体中的处理语句是顺序的,而for_generate语句中处理的语句是并行处理的,具有并发性。 if_generate语句 标号:if 条件 generate 并行处理语句; end generate 标号;if_generate语句是并行处理语句,其中不允许出现else子语句 初学VHDL,对一些问题总是感到...
Generate VHDL, Verilog and SystemVerilog code for FPGA and ASIC designs using HDL Coder™. Version History Introduced before R2006a Subsystem|Action Port|If Action Subsystem Select Subsystem Execution Why did you choose this rating?Submit How useful was this information?
if expression statements elseif expression statements else statements end Description if expression, statements, end evaluates an expression, and executes a group of statements when the expression is true. An expression is true when its result is nonempty and contains only nonzero elements (logical or...
Avoid adding a space after else within the elseif keyword (else if). The space creates a nested if statement that requires its own end keyword. Extended Capabilities expand all C/C++ Code Generation Generate C and C++ code using MATLAB® Coder™. HDL Code Generation Generate VHDL, Verilog...
Avoid adding a space afterelsewithin theelseifkeyword (else if). The space creates a nestedifstatement that requires its ownendkeyword. Extended Capabilities expand all C/C++ Code Generation Generate C and C++ code using MATLAB® Coder™. ...
if expression statements elseif expression statements else statements end Description if expression, statements, end evaluates an expression, and executes a group of statements when the expression is true. An expression is true when its result is nonempty and contains only nonzero elements (logical or...
As while loops are generally not synthesizable, we often use them in our testbenches to generate stimulus. The code snippet below shows the general syntax for a while loop in VHDL. <loop_label>:while<condition>loop-- Code to executeendloop<loop_label>; ...
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