I haven't come across the Wren prototype (eponymous surname??) but the RC6502 pcb that I build had many
power supply decoupling capacitors. Admit to not having done one on a breadboard but I assume you will need them.
Apologies if they are awaiting placement.
From memory they were 100nF but could ...

I wonder how many got the PO#1 reference - quite a few I suspect

Postscript: Thanks all for the help; it was quite straightforward to get TaliForth2 running on my RC65(c)02.
I just had to do a bit of work to split up the object files to avoid the $D000 -DFFF block where the I/O lives.

I must say, though, that you MUST use the Improved PIA Communicator (https ...

Sugarlumps 8) Well thanks BillO and Garth for prompt replies.

I replaced the 6502 mainly to allow me to run TaliForth2 (my main objective) and that is excellent.
I chose the Rockwell part to avoid the potential issues with the WDC and I guess I will stick with that at 4MHz.
It is a very nice system ...

Hi Reg,
If that doesn't uncover the problem, give more details... what specific CPU are you using, what clock speed, etc. I found the SBC version to be a bit fussy to get working, but I did eventually find success. (My modular backplane version is zooming along at 8Mhz with a modern WDC 65c02 ...

Hi. Thanks for looking.
I did find something in the manual referring to leaving out ED so all is possible.

As a first build with Forth, I have thrown the kitchen sink in there; I am sure as time progresses (and hopefully my skill with Forth), I shall probably prune it down again.
I have seen that ...

Tali Forth 2 is fairly modular. I got it running on a build with only 16k ROM, I believe by leaving out the assembler, disassembler and editor. You can customize it for your build. See examples in the platform folder. It took quite a lot of jiggling but I finally managed to get Tali Forth 2 running ...

Good point, thanks.
Yes, one of the reasons that I am trying Tali is that it is very well structured and understandable but I did particularly want an assembler and the line editor would be useful too.
I have found the "includes" for them in taliforth.asm rather than the platform file and will try ...

Has anyone managed to get Tali Forth 2 running on the RC6502 Apple 1 Replica (or as mine now is, an RC65C02)??

Tali Forth v.2 is very simple to get up and running on a new platform - I did it for floobydust's SBC in about an hour and a half, most of which was in setting up the build environment ...

A 65C02 will work fine on the Rev H board. Took the words straight out of my mouth 8) Thanks. I was just going to double check that. There are some (older?) comments on TEBL that the SBC only supports the 6502 whilst I just noticed that the latest CPU board does have 65C02 on it. Will get one in ...

Tali Forth v.2 is very simple to get up and running on a new platform - I did it for floobydust's SBC in about an hour and a half, most of which was in setting up the build environment and reading through the relevant documentation. Loks like Tali Forth only runs on the 65C02 and my SBC will only ...

Do you mean K b (kilo bit ), or K B (kilo byte )? 265Kb is 32KB, enough to fit both the BASIC and the Forth on it at the same time. Fig-Forth seems to have been where Forth started for the 6502, although it wasn't a particularly good Forth. It's available at http://6502.org/source/forth65.zip, for ...

Hi,

Have just completed an RC6502 SBC build (standard 6502 processor, 1MHz) and am looking to implement Forth on it.
Has anyone done this before?

The SBC currently has a single 64Kb EEPROM with Wozmon/Krusader/Basic. I could possibly replace it with Forth on another
64Kb and boot directly into ...

Glad it's working! It's a good feeling when you fire it up and see what you're expecting, right?

It most certainly is :D

I am rather impulse driven and this project has taught me to take a bit more time. I saw the pcb on EBay and just went for it; ordering the
components from so many places, I ...

All,
Thanks again everyone for the prompt attention.
It is indeed still working nicely this morning. I had the usual panic when plugging in because the jumpers were incorrect (who said non-obvious?). It is a good job it worked after that because my tools are limited to a soldering iron & DVM.

Have ...