They are nothing but labels, which are invoked using the call instruction.
它们仅仅是通过call指令调用的标签。
You set some registers and issue a system call instruction (or an interrupt) and have the kernel code called directly from the trap handler.
你可以设置一些寄存器，并发出一个系统调用指令(或中断)，并由陷阱处理程序直接调用内核代码。
Short answer: the correct way to do this is using a call instruction.
简短的回答：正确的方法是使用一个调用指令。
Considering the advantages of the two ways, a new approach is proposed which combines them with each other by using graphs to form macro-call instruction.
鉴于两者的优越性，提出一种新的编程方法，将图形编程和宏编程相结合，用图形化的方法形成对宏程序的调用指令。
Call instruction calls the method indicated by the method descriptor passed with the instruction.
指令调用由通过该指令传递的方法说明符指示的方法。
Call instruction calls the method indicated by the method descriptor passed with the instruction.
指令调用由通过该指令传递的方法说明符指示的方法。
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