Re: [M100] Request for info on RS DV Interface

2020-01-17 Thread RETRO Innovations
And, though it helps the OP not at all, I hope it's not too forward to 
note that I have two of these units, and need only 1, so I am looking to 
sell my second unit (works, with disks, with homemade T100 cable, 1 
drive, missing drive bay door, good shape)


Jim



Re: [M100] Request for info on RS DV Interface

2020-01-17 Thread Mike Stein
Small nitpick: it has a ch3/4 RF TV output as well as the composite out.

And of course the cable for the M100 is different from the 102/200. I believe 
there are sources on here for both the cable and the disk.

Have fun!
  - Original Message - 
  From: Gregory McGill 
  To: m...@bitchin100.com 
  Sent: Friday, January 17, 2020 5:54 PM
  Subject: Re: [M100] Request for info on RS DV Interface


  http://ftp.whtech.com/club100/doc/dvi.pdf 


  It works with the 100, 102 and 200, it provides a video screen (composite 
out) and disk drive, it requires specific os to be loaded off disk then it 
uploads a patched basic (basically) to use the display 


  I have disks, cables etc here 
https://www.arcadeshopper.com/wp/?page_id=11#!/100-102-200/c/28313042/offset=0=nameAsc
 


  Greg 



  On Fri, Jan 17, 2020 at 2:38 PM Charles Hudson  wrote:

I just acquired a Radio Shack disk video interface; I haven't plugged it in 
yet and it came with no documentation.  It does have a port on the bottom - 
looks like a ribbon cable - and a couple of RCA jacks on the back, so there is 
a way in and a way out, but I don' know what it was designed to interface with. 
 Maybe the M100?


I think however that some of the community have these in their collection.  
I'd appreciate any guidance you can give me.  Specs?  Manual?  Thanks for your 
replies.


-CH-

[M100] ROM disassembly

2020-01-17 Thread Stefano Bodrato
I'm using the m100 and especially the nec roms as a cross reference for my MSX 
disassembly (and vice versa).
They are so close and in many cases it is of great help in identifying the 
constant values and the dynamic data, vectors, etc.
In this way I'm now able to modify both the MSX and, still with some limit, the 
m100 ROMs.  In the latter case I could rip off the terminal and modem programs 
(also from the directory) and use the gained space to improve the BASIC.
I'd like to waste some more time and extract a generic portable BASIC from 
those sources, e.g. to see it run on, say, a zx spectrum, but moving it all in 
a 16k rom is probably VERY challenging.
The similarities with the MSX are interesting, the nec has almost the same 
tokenization mechanism, but a different (older) floating point implementation, 
all the other models have the same FP engine (double precision, BCD encoding) 
but a different (older) way to deal with tokens. I suppose it was done to fit 
the code in the available space in ROM.
Being able to assemble the program permits to quickly generate a MAP file.   I 
think I found most of the used addresses and associated them to the declared 
asm labels.



Re: [M100] Request for info on RS DV Interface

2020-01-17 Thread James Zeun
Always wanted to have a DVI, just never seem to come up on eBay over here.

Sent from my iPad

> On 17 Jan 2020, at 10:54 pm, Gregory McGill  wrote:
> 
> http://ftp.whtech.com/club100/doc/dvi.pdf 
> 
> It works with the 100, 102 and 200, it provides a video screen (composite 
> out) and disk drive, it requires specific os to be loaded off disk then it 
> uploads a patched basic (basically) to use the display 
> 
> I have disks, cables etc here 
> https://www.arcadeshopper.com/wp/?page_id=11#!/100-102-200/c/28313042/offset=0=nameAsc
>  
> 
> Greg 
> 
>> On Fri, Jan 17, 2020 at 2:38 PM Charles Hudson  wrote:
>> I just acquired a Radio Shack disk video interface; I haven't plugged it in 
>> yet and it came with no documentation.  It does have a port on the bottom - 
>> looks like a ribbon cable - and a couple of RCA jacks on the back, so there 
>> is a way in and a way out, but I don' know what it was designed to interface 
>> with.  Maybe the M100?
>> 
>> I think however that some of the community have these in their collection.  
>> I'd appreciate any guidance you can give me.  Specs?  Manual?  Thanks for 
>> your replies.
>> 
>> -CH-


Re: [M100] Request for info on RS DV Interface

2020-01-17 Thread Gregory McGill
http://ftp.whtech.com/club100/doc/dvi.pdf

It works with the 100, 102 and 200, it provides a video screen (composite
out) and disk drive, it requires specific os to be loaded off disk then it
uploads a patched basic (basically) to use the display

I have disks, cables etc here
https://www.arcadeshopper.com/wp/?page_id=11#!/100-102-200/c/28313042/offset=0=nameAsc


Greg

On Fri, Jan 17, 2020 at 2:38 PM Charles Hudson  wrote:

> I just acquired a Radio Shack disk video interface; I haven't plugged it
> in yet and it came with no documentation.  It does have a port on the
> bottom - looks like a ribbon cable - and a couple of RCA jacks on the back,
> so there is a way in and a way out, but I don' know what it was designed to
> interface with.  Maybe the M100?
>
> I think however that some of the community have these in their
> collection.  I'd appreciate any guidance you can give me.  Specs?  Manual?
> Thanks for your replies.
>
> -CH-
>


[M100] Request for info on RS DV Interface

2020-01-17 Thread Charles Hudson
I just acquired a Radio Shack disk video interface; I haven't plugged it in
yet and it came with no documentation.  It does have a port on the bottom -
looks like a ribbon cable - and a couple of RCA jacks on the back, so there
is a way in and a way out, but I don' know what it was designed to
interface with.  Maybe the M100?

I think however that some of the community have these in their collection.
I'd appreciate any guidance you can give me.  Specs?  Manual?  Thanks for
your replies.

-CH-