![]() For instance, simulators may provide an access to the host file system and allow the simulated system to load and store files on it. While emulators - if done correctly - are a very precise mapping of the real machine, users may experience a more comfortable handling with simulators. A simulator is not good for developing low-level applications on since it does fully implement the underlying hardware. A simulator is great for running programs that were designed for the system. Simulators can use their own implementations of parts or all of the system behaviour. The goal is to provide an application to the user which looks and feels like the real machine it is intended to simulate.Įmulators have to execute the ROM contents of the real machine, so they need dumps from its ROM memories. In contrast, a simulator is a program that is designed to function like the original target regardless of how it is implemented underneath the covers of the program. ![]() By connecting all simulated circuits according to the schematics of the real machine, the complete system shows a behaviour that simulates the behaviour of the real machine. It contains lots of simulations for the various chips like the processor, the video chip, the sound chip, ROM, RAM, and so on. An emulator is a program that simulates the components of the real machine as precisely as possible. ![]()
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