I want to thank everyone helped me in chat: Zeroko, calc84maniac, Tari, fghsgh and others. Hope I can improve my programming skills and eventually finish it, also hope that it will be useful to calculator comminity. This is my first serious calculator programming project, also it is my dream(implementing a calculator emulator on something). I'm still working on the emulation part, thus unable to be built currently.Īs you can see, it's still on the very early stage of developmenting I doubt if I can finish it in this year since I'm really not familiar with z80, nor implementing emulators. 8xk fileĪfter these, you can just send the application to your calculator. #Casio Fx 991es Plus Emulator PcAssemble it with a PC program(currently SPASM).Put your ROM dump file into the directory A scientific calculator supports most of the features of fx 500, fx500, JX570ms, 570vnplus, 991es plus, 991ms, fx570esplus, fx-82 or TI-30XB, fx 4500, 82ms.No much worrying though, it only involves 3 steps: I may not publish an executable directly since ROM of the emulated calculator is probably copyrighted by CASIO, so you may need to build the executable by yourself. Emulating such a processor on a z80 might not be the best solution. The emulation speed is not guaranteed, because the emulated core is a 3-stage-pipelined RISC running at ~125kHz. Precise emulation based on community-made documentation.It is currently unfinished, but the planned features are: To be more specific, this is a CASIO fx-ES PLUS series calculator emulator running on TI-83 Plus and its variants. This is a calculator emulator running on another calculator. So I started working on it a few days ago. I got attracted immediately and tested all of these hackstrings one by one.įinally, I came up to an idea: Writing an emulator to realize my childhood dream. One day I saw a thread on Universal Casio Fourm describing the low-level mechanism in detail. Now I have multiple graphing calculators, but I still miss the old days exploring all possibilities of that little scientific thingy. I had a lot of fun playing around its exploits, during which I started to imagine how it solves math problems inside. In my childhood, the only calculator(also my only electronic device with screen and keypad) I have is a CASIO fx-991ES PLUS, which is a non-programmable scientific calculator.
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