What is a zero page?

Zero page is part of the computer's memory at the very beginning of the IS address. Zero refers to the memory addresses contained in this area because it is at the beginning that addresses begin with zero. In older computers, this space was reserved for primary functions and critical information. Over time, fewer systems relied on the zero side and its special treatment became less common. On newer computers, this memory address is often maintained as a way to monitor the use of programming memory and search for errors.

The use of the memory of older computer systems is in many ways as in newer models. Once programs will be performed early or operations will be completed recently, moving from the storage to active memory. The active memory works much faster and allows the program to work with less waiting time. The computer monitors all this memory by assigning addresses to programs, basically the same as address on the house.

For the most part, when the computer is turned on, active memory is lost. As a result, when the computer first turns on, the memory should be completely empty. This means that the very first pieces of information loaded into the system would go on the very front of the memory lists or on a zero page. To ensure that everything worked as it should, some functions in this area of ​​memory were created and other programs were maintained outside.

As the time when turned on, the computer increased dramatically. While memory speed increased with everything else, the processor speed slowly met and overtaken it in several functions. This change has made the zero side significantly less important and, as a result, many systems have ceased to use it. It was easier to let the system make its own decisions on where the information was kept rather than trying to control it.

Modern computers will often give up zero page completely. Some processorY will still allocate a small amount of memory at the beginning of the address space that deliberately maintains empty. When the program spoils and tries to access the memory that does not exist, the malformated memory indicator simply points to the first available address. By monitoring the empty part for these indicators it is possible to find non -functional programs. In many ways, this is the opposite of the original zero page; Rather than being full of basic programs, it is empty and waits for failures.