[Coco] Reimplementing BASIC09 / Microware BASIC

[Walter Zambotti]

This is something llvm is exactly build for.

Once the backend is created any language could then be converted to whatever you need:

- backend for icode
- backend for asm
- backend for 6809/6309 machine code

I have recently been looking at writing a llvm backend to do the conversion to asm but the llvm object model is quite complex and the dependencies and communications between all the objects is quite over whelming.

Looking at the source for some of other backends and seeing how much has been written and the complexity of what has been written I'm not entirely sure that llvm meets it's own design goals of setting out to make compiler design any easier.

In one aspect it does because once the backend is complete every language that llvm supports should theoretically work.

Walter

-----Original Message-----
From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Wayne Campbell
Sent: Thursday, 2 April 2020 11:35 AM
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Subject: Re: [Coco] Reimplementing BASIC09 / Microware BASIC

I'm not sure if that was aimed at me, or at Allen. But for what I've been thinking, I was basically looking at what a modern programming environment looks like. And the idea was to emulate that environment by separating out the pieces of Basic09 so that they can handle larger files and allow for runtime debugging. My DCom program, now known as decode, is designed to do for Basic09 I-Code modules what a disassembler does for object code modules. I imagine that separating out the packing function of Basic09 to work independently is not out of the question.

Wayne

On Wed, Apr 1, 2020, 8:10 PM James Jones <jejones3141 at gmail.com> wrote:

> Do you require it to be interactive the way basic09 is now?
>
> On Wed, Apr 1, 2020 at 11:00 AM Allen Huffman <alsplace at pobox.com> wrote:
>
> > On Apr 1, 2020, at 10:56 AM, Wayne Campbell <asa.rand at gmail.com> wrote:
> > >
> > > The Structure of I-Code
> > > http://www.cocopedia.com/wiki/index.php/The_Structure_of_I-Code
> >
> > How difficult do you think it would be to make a Source to ICODE 
> > "compiler"?
> >
> >
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