[Coco] Frank Hogg Labs E-Forth, which is the only thing I’ve found that won’t run on the CoCo3FPGA ?

[Leslie Ayling]

Hi Dave, et al.

I'm finding it very interesting indeed.

I've tried E-Forth out on all the available emulators I have.

Only works correctly on David Keil's MS-DOS emulator, but it's difficult 
to debug there.

Doesn't work on VCC or Jeff V's emulators, you just get a row of chars 
for each keypress.

Still trying to work out exactly what it is doing....


Cheers,
Leslie



------ Original Message ------
From: "Dave Philipsen" <dave at davebiz.com>
To: coco at maltedmedia.com
Sent: Tuesday, 20 Feb, 2018 At 10:26 PM
Subject: Re: [Coco]  Frank Hogg Labs E-Forth, which is the only thing 
I’ve found that won’t run on the CoCo3FPGA ?

Interesting....


On 2/20/2018 4:25 AM, Leslie Ayling wrote:
> Hi Dave, Brett , et al.
>
>
>> I think Gary's implementation relies on the standard usage and does 
>> not account for different values in the data direction registers.
>
> True.
>
>  From what I can see in the current version of CoCo3FPGA, the data 
> register at $FF00 (KEYBOARD_IN) is always treated as an 8 bit *input* 
> port regardless of the Data Direction bits.
>
> Likewise, the data register at $FF02 (KEY_COLUMN) is always treated as 
> an 8 bit *output* port regardless of the Data Direction bits.
>