ASM / Z80

Project will require the ASM/Z80 programmer to code for the TI-83 Plus calculator. This project is not a game, nor is this project an application. The project is a secruity suite. If you are intersted please e-mail me ASAP 'asmz80projectATgmailDOTcom' The ASM/Z80 programmer will code 3 security scripts for TI-83 plus using: [login to view URL] Program #1 1) Extract the serial id from the calculators certification FLASH ROM memory segment. Each calculator has 16bytes of address space containing such information. E-mail me if you have questions on this stage. Program #2 1) Encrypt the serial id using a 256-bit key. 2) Store the encrypted serial back on the calculator to a secret memory address location. E-mail me if you have questions on this stage. Program #3 1) This program will launch only if the calculators serial id matches the one that was installed by Program #2. 2) This program will launch ONLY if the calculator is a TI-83 Plus.. which means the program must fail if the device has been loaded on a TI-83, 84, or 89. You can check the certification memory segment for related information. E-mail me if you have questions on this stage. The above three programs will ensure un authorized copying of program #3 cannot occur. Also, program #3 may be layered into our proprietary software which was coded in TI-83's basic like language. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform TI-83 Plus / TI-83 Flash Debugger