gmane.comp.hardware.tandy.coco

Re: sidewalk with Linux

Aaron Wolfe — 2013-06-19T09:23:57

SIDEWalk is tested on Linux and works fine here.  That doesn't mean a
whole lot, other than that it *can* work on at least one Linux box
(Debian fwiw).

Can you send me your image?  I'll at least be able to see if it's the
content or something about your linux system that is causing this.

On Tue, Jun 18, 2013 at 9:52 PM, Mike Rowen <mike-zsjO4UNGzrJeoWH0uzbU5w< at >public.gmane.org> wrote:

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Re: COCO Video

T. Franklin — 2013-06-19T07:39:44

I think you're confusing the 6847 with the GIMI. The 6847 was a chip Developed by Motorola for a dumb terminal called TRS-80 VideoTex Terminal, for the farm industry (precursor to the CoCo). The GIMI was breadboarded with discrete components when developing the CoCo3.

https://en.wikipedia.org/wiki/TRS-80_Color_Computer







The logic of the 6847 is relatively simple and constructing a replacementfor it isn't outside of the realm of possibility. The thing was breadboardedwith discrete logic while being designed, after all.




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Re: COCO Video

Mark McDougall — 2013-06-19T07:36:27



I think the idea of adding VGA output via scan-doubling would be what most 
people are looking for... with the hassle of external VGA converters?!?

Regards,

Re: COCO Video

Mike Pepe — 2013-06-19T04:44:19

The logic of the 6847 is relatively simple and constructing a replacement
for it isn't outside of the realm of possibility. The thing was breadboarded
with discrete logic while being designed, after all.

The main problem with this, engineering wise, is that the 6847 and 6883 are
tied together very closely, and the character rate is tied to the bus speed
of the CoCo. The data is fed into it at 1/4 the colorburst frequency
(.89Mhz) and is clocked out of the device with the CLK input at the
colorburst frequency (3.8MHz) - you can't get any more data out of the
device other than an 8 bit input every E clock period. In other words, you
get 32 bytes into and 256 dots out of it per line at best.

It may be possible to scan-double at the device level to drive the output at
VGA frequency, but we can do that with existing analog scan doublers that
exist today.

It also would be possible to add an enhancement like a 32x192 mode in 256
colors, 64x192 in 16 colors.. something along those lines, which would
adhere to the 32 bytes per scanline max that the 6847/6883 supports.

If connecting a CoCo 1/2 to a modern TV is the goal, I think an easier way
to go would be to feed off the luma and two chroma outputs that the 6847 has
and use them to drive the component inputs of a TV (G, R-Y, B-Y) - one of
these days I'll get around to giving that a try and seeing if it actually
works.

Anyway, interesting to think about what's possible.

would like
connects
for


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Re: Terminal program

Bob Devries — 2013-06-19T04:42:47

Bill,
I think the one you're thinking of may be "mikeyterm". It was discussed in 
the April 1985 Rainbow.pages 70/71.

Mikeyterm should be in the archives somewhere.

Regards, Bob Devries
Dalby, QLD, Australia

----- Original Message ----- 
From: "Bill" <cwgordon-iK5jlJkdgf9Jm/Hvfsr4+Q< at >public.gmane.org>
To: "Coco Enthusiasts" <coco-uNHYcr1XS/wmlAP/+Wk3EA< at >public.gmane.org>
Sent: Wednesday, June 19, 2013 2:30 PM
Subject: [Coco] Terminal program




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Re: MinTED now is the NitrOS-9 default text editor!

Aaron Wolfe — 2013-06-19T04:21:05

Yes, congrats!  Good to see new tools

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Re: MinTED now is the NitrOS-9 default text editor!

Willard Goosey — 2013-06-19T03:46:16

Congratulations!

Heh, indeed.  

Willard

Terminal program

Bill — 2013-06-19T04:30:41

At one time, wasn't there a basic program that created a terminal program? I
cannot remember what it was, but it was written in basic, and I remember
typing it in, but that was so many years ago,  I have forgotten the name of
it. 

 

I do remember it was full of DATA statements, and it created a very simple
terminal program.

 

Anyone remember it. And do you have the basic program written down anywhere?

 

Thanks


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MinTED now is the NitrOS-9 default text editor!

Luis Antoniosi (CoCoDemus — 2013-06-19T03:28:59

Just commited to lwtools branch. Now minted is part of nitros-9 distro.

no more complains about missing decent text editor :)

Re: sidewalk with Linux

Luis Antoniosi (CoCoDemus — 2013-06-19T02:22:24

to write on os-9 first partition, you can use toolshed os9 tool directly
like:

os9 dir /dev/sdb,

but to copy hdbdos virtual disks you can use my side.cpp tool:

side get disk.dsk 255 /dev/sdb
or
side put disk.dsk 255 /dev/sdb

compile on linux: gcc side.cpp -o side





On Tue, Jun 18, 2013 at 10:15 PM, Mike Rowen <mike-zsjO4UNGzrJeoWH0uzbU5w< at >public.gmane.org> wrote:

Re: sidewalk with Linux

Mike Rowen — 2013-06-19T02:15:23

Thanks Louis. I have used dd to copy one CF card to another and the copies work in the SuperIDE. So I don't think there is any issue with the actual images. I just seem unable to open an image with sidewalk.

-Mike

On Jun 18, 2013, at 9:58 PM, "Luis Antoniosi (CoCoDemus)" <retrocanada76-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> wrote:


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Re: sidewalk with Linux

Luis Antoniosi (CoCoDemus — 2013-06-19T01:58:01

you should be able to copy as:

dd if=/dev/sdb of=cfimage.img bs=1M count=245

to copy back or to another cf:

dd if=cfimage.img of=/dev/sdb bs=1M count=245



On Tue, Jun 18, 2013 at 9:52 PM, Mike Rowen <mike-zsjO4UNGzrJeoWH0uzbU5w< at >public.gmane.org> wrote:

sidewalk with Linux

Mike Rowen — 2013-06-19T01:52:51

Has anyone successfully used sidewalk under Linux? I copied a SuperIDE CF
card via dd and tried to open the image in sidewalk, but it reports
"Archive type not supported". Same thing happens when attempting to access
the CF directly. Here is what Linux (CentOS 6.3) shows for the device:

Disk /dev/sdb: 256 MB, 256901120 bytes
8 heads, 62 sectors/track, 1011 cylinders
Units = cylinders of 496 * 512 = 253952 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xffffffff

I understand that this has mostly been used from Windows. If anyone has
used it under Linux, any tips appreciated. I would like to be able to
browse CF backup images if not directly manipulate them. Thanks!

Cheers,
-Mike Rowen

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Two unrelated questions: Printing and Configuration

Ed Orbea — 2013-06-19T01:31:18

Question #1:

On a real CoCo3 uing HDBDOS and Drivewire 3 or Drivewire 4, can I use 
the RS-DOS LList command to list a BASIC program to the DW vitrual 
printer port?
What I have been doing, is saving it as as ASCII file, then using 
wimgtool to extract the file and then use notepad to print it, but that 
is a hassle.

Question #2:

I'm trying to create a new CF card for SuperIDE. I used the ideprobe 
application from the SuperIDE utiliy disk, and it shows for my CF Card:
Model: PIO
Logical Cylinders: 493
Logical Heads: 16
Logical Sectors: 63
Total Sectors: 496944
LBA is supported

So, my question so as to properly configure the OS9 offset is what 
should be the byte pre sector value? (256 or 512)

Thanks

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Re: COCO Video

Steven Hirsch — 2013-06-19T00:20:22


ISTR a different URL for that device.  I think he eventually finished it 
and started selling boards.

Re: COCO Video

Mark McDougall — 2013-06-18T23:29:24


Wow, that's a really nice little board!

Wouldn't be too difficult to do the 6847 I wouldn't think... I've already 
done it in a complete Coco 1/2 FPGA implementation, but not exactly hardware 
pin-compatible...

Regards,

Re: Quick silly question

Bob Devries — 2013-06-18T21:38:36

Bill,
If you're using an external terminal to talk to the Coco, then, if you're 
using NitrOS9, just typing <CTRL>L should clear the screen. It's been some 
time since I did it that way.

Regards, Bob Devries
Dalby, QLD, Australia

----- Original Message ----- 
From: "Bill" <cwgordon-iK5jlJkdgf9Jm/Hvfsr4+Q< at >public.gmane.org>
To: "Coco Enthusiasts" <coco-uNHYcr1XS/wmlAP/+Wk3EA< at >public.gmane.org>
Sent: Wednesday, June 19, 2013 8:10 AM
Subject: [Coco] Quick silly question




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Re: Quick silly question

Bob Devries — 2013-06-18T21:34:52

Sorry, Bill,
I replied to Mike, but it should have been to you. :( Too early in the 
morning.

Regards, Bob Devries
Dalby, QLD, Australia

----- Original Message ----- 
From: "Bill" <cwgordon-iK5jlJkdgf9Jm/Hvfsr4+Q< at >public.gmane.org>
To: "Coco Enthusiasts" <coco-uNHYcr1XS/wmlAP/+Wk3EA< at >public.gmane.org>
Sent: Wednesday, June 19, 2013 8:10 AM
Subject: [Coco] Quick silly question




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Re: Quick silly question

Bob Devries — 2013-06-18T21:32:24

Mike,
if you're trying to clear the screen on a terminal *external* to the Coco, 
then you need to use that terminal's code. If the terminal uses VT100 for 
example, the code is:

<ESC>[2J

On a VT52 terminal (such as the Atari ST) the codes are:

<esc>E

Hyperterminal, TerraTerm etc, usually respond to VT100 codes.

Regards, Bob Devries
Dalby, QLD, Australia

----- Original Message ----- 
From: "mike delyea" <mdelyea-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org>
To: "CoCoList for Color Computer Enthusiasts" <coco-uNHYcr1XS/wmlAP/+Wk3EA< at >public.gmane.org>
Sent: Wednesday, June 19, 2013 7:19 AM
Subject: Re: [Coco] Quick silly question




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Re: Quick silly question

Bill — 2013-06-18T22:22:31

PRINT #-2,CHR$(12) works

-----Original Message-----
From: coco-bounces-uNHYcr1XS/wmlAP/+Wk3EA< at >public.gmane.org [mailto:coco-bounces-uNHYcr1XS/wmlAP/+Wk3EA< at >public.gmane.org] On
Behalf Of mike delyea
Sent: Tuesday, June 18, 2013 4:19 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] Quick silly question

I think chr$(12) will clear the screen (or page beak with printer) but
don't know how to send it.

On Tue, Jun 18, 2013 at 6:10 PM, Bill <cwgordon-iK5jlJkdgf9Jm/Hvfsr4+Q< at >public.gmane.org> wrote:

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Re: Quick silly question

mike delyea — 2013-06-18T21:19:23

I think chr$(12) will clear the screen (or page beak with printer) but
don't know how to send it.


On Tue, Jun 18, 2013 at 6:10 PM, Bill <cwgordon-iK5jlJkdgf9Jm/Hvfsr4+Q< at >public.gmane.org> wrote:


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