Re: ti-emu: TI-8x Emulation Project Status Report - Jan 98

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Re: ti-emu: TI-8x Emulation Project Status Report - Jan 98



If nobody offers to work on Unix ports of these, i'd like to volunteer.

> 
> Hello,
> 
>      You may not have heard about it before, but the TI-8x Emulation 
> Project is underway.  I am the coordinator/programmer for the project.  
> This is the first of what will hopefully become monthly status reports 
> until the project is complete.
> 
>      I started this project in the Fall of 97 because although a TI-85 
> emulator exists, it was only for PC's and I wanted something to emulate 
> my faithful TI-82.  I started thinking about it, and I realized that if 
> you go through all of the trouble to emulate one of the calculators, that 
> you should go ahead and emulate them all.  Eventually, the emulator 
> should be ported to all of the major platforms available.  The source 
> code will be freely available at the web site when it is at a more 
> complete stage.
> 
>      This is a list of what has been done so far in the emulator (v0.004):
> 
> Core Routines:
>      * Z-80 Emulation code by Marat Fayzullin is being used
>      * Z-80 Disassembly code by Marcel de Kogel is being used
>      * TI-82 Display ports partially emulated (about 75%)
>      * TI-82, 85, & 86 ROM page switching is working
>      * 86 RAM page switching is working
> 
> MacOS PPC Specific:
>      * 82, 85, & 86 display works
>      * Multiple emulators can be run at once
>      * Register window for debugging purposes with a full disassembly of 
> the current PC
>      * Foundation of Mac interface
> 
> MacOS 68k Specific:
>      No progress has been made in this area yet, the person doing the 
> port hasn't recieved a copy of the source from me yet.
> 
> DOS/Windows Specific:
>      No progress has been made in this area yet, I am still trying to get 
> in touch with the person responsible for the port.
> 
>      My next steps in the emulation will be to add more debugging code to 
> the MacOS version so that I can see what's going on inside the thing.  
> Also, I will begin to add interrupt code to allow keypad presses to be 
> detected (fun!).  I need to know what the interrupt frequency is on each 
> of the calc's.  If anyone has that information, or any other information 
> which could be helpful for this project (anything on the hardware of the 
> 83), please post a url to this mailing list, that way, everyone can 
> benefit from it.
> 
> 
> 
> Dennis
> 
> Maintainer of the TI-8x Emulation Project:
> http://members.aol.com/smiley0242
> 
>
References: