Changes

Chip accurate emulation works by simulating each logic chip on the board individually. Not only does this take a tremendous amount of processing power or specialized hardware to run (as in, even emulating something from the 1970s on a chip accurate level would need Dolphin-level system requirements to run at a good speed), but they also require a incredible amount of effort to make. This accuracy method is almost useless. Although it is the only way to achieve true 100% hardware simulation, cycle accurate emulation can already achieve accuracy which is virtually indistinguishable from the real hardware, aside from a very limited amount of edge cases. In addition, cycle-accurate emulators have much lower system requirements and programming difficulty. Currently, the only chip accurate emulators that are usable run on Field Programmable Gate Arrays, or FPGAs, which are essentially custom programmable chips. Machines dedicated to this type of emulation exist, such as the WIP Zimba 3000 Analogue NT Mini by kevtrisor the RetroUSB AVS by bunnyboy. Other examples of chip accurate emulation can be found in flash carts such as the SD2SNES, where various add-on chips are emulated on the included FPGA.