the assign procedural continuous assignment statement shall override all procedural assignments to a variable(过程性持续赋值优先级要高于一般的过程赋值) the deassign procedural statement shall end a procedural continous assignment to a variable. the value of the variable shall remain the same until the v...
1.procedural assignments are used for updatingreg ,integer , time ,real,realtime and memory data types. 2.difference betweenprocedural assignmentsandcontinuous assignments (1)continuous assignments drivenetsandare evaluated and updated whenever an input operand changes value. (2)procedural assignments updat...
这句话的含义是,在硬件描述语言(如Verilog或SystemVerilog)中,不允许在过程块(如always块或initial块)中对寄存器进行连续赋值。连续赋值(continuous assignment)通常用于组合逻辑,它表示只要赋值表达式的值发生变化,赋值操作就会立即执行。而在过程块中,应该使用阻塞赋值(=)或非阻塞赋值(<=)来对寄存器进行赋值。 2....
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IEEE Std 1364™-2001, IEEE Standard Verilog® Hardware Description Language Theassignprocedural continuous assignment statement shall override all procedural assignments to a variable. Thedeassignprocedural statement shall end a procedural continuous assignment to a variable. The value of the variable sha...