3.1 Which emulators use which types of disk images?.2 Do these emulators need Windows to run?.1 What emulators exist for the TI-99/4a?.Classic 99 shows characteristics of both.

Win994A is a simulator, while MESS is an emulator. Also, it is difficult to integrate enhancements beyond the features of the real machine. This requires all operations to be done on images which are usually only readable within the emulator - you cannot use PC tools to edit files. In contrast, emulators usually make use of image files to represent the data medium (like a floppy disk) and make the ROM 'believe' it sees the real medium. 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.

Ti-99/4a emulator for mac