naxhealthy.blogg.se - Ti 99 emulator mac

The only definitive reference is the original interpreter. While it would theoretically be possible to statically recompile the GPL code as well this would be significantly more difficult since GPL was never officially documented by TI. The GPL still runs interpreted just as it did on the original machine. Only the TMS9900 code is statically recompiled in this program. Finally, the BASIC interpreter would run your program. The GPL interpreter would run the BASIC interpreter. The CPU would execute the GPL interpreter. This made BASIC programs on the machine rather slow. A program written in GPL would be assembled to bytecode and then run on an interpreter that was written in TMS9900 assembly language. GPL was much like an assembly language with some high-level primitives for commonly needed functions.

Instead it was programmed in something called Graphics Programming Language (GPL).

The BASIC interpreter was not written in assembly language as you might expect.

There are a couple quirks of the TI-99/4A which made this a bit trickier to support than the C64 version: The support functions are in runtime_functions.c and it is this file that you would edit to port to a new system or to add new features. The output of the recompiler is tibasic.c which is platform independent. The recompiler is the work of Michael Steil and theÂ support for the TI-99/4A is by James Abbatiello. The original program is statically recompiled to produce a new native binary. This program works much like the already mentioned Commodore BASIC project. There are a few sample programs available on the homepage that you can run in this manner. You can also run programs from a file: $ cat name.bas Or you can write a line-numbered program: $ tibasic It supports the same interfaces as the previous projects.Â You can use it interactively in direct mode: $ tibasic If you port it to a new platform please drop us a line we’d love hear about it. Binaries for Windows and Mac OS X are available and the source should compile on most POSIX-like systems. Unusually for the time it had a 16-bit CPU: the TMS9900.ĭownload the program from the project page on SourceForge. For those unfamiliar the TI-99/4A was a home computer by Texas Instruments released in 1981. It is a good time for statically recompiled versions of BASIC from old computers.Â First there was Apple I BASIC.Â Then came Commodore BASIC.Â Now, due to overwhelming demand, we’re proud to release TI-99/4A BASIC.