Re: [M100] ROM disassembly updatec

2022-01-14 Thread Joshua O'Keefe
On Jan 14, 2022, at 3:21 PM, Stefano Bodrato  
wrote:
> I'm proud to announce that I finished copying in the M100 and MSX  the 
> comments found in the sources of mbasic for cp/m .
> This makes most of the complex stuff more understandable, just have a look!
> Moreover the same source can produce M10, M100 or KC85 ROMs identical to the 
> original ones. 

Stefano, this is outstanding!  Thank you for sharing it.

[M100] ROM disassembly updatec

2022-01-14 Thread Stefano Bodrato
I'm proud to announce that I finished copying in the M100 and MSX  the comments 
found in the sources of mbasic for cp/m .
This makes most of the complex stuff more understandable, just have a look!
Moreover the same source can produce M10, M100 or KC85 ROMs identical to the 
original ones.

https://github.com/z88dk/techdocs/blob/master/targets/m100/m100.asm

As said comparing the resulting MAPs helps in porting the existing programs to 
other models.

I also succeded in altering the cp/m's MBASIC and get a ZX Spectrum +3 versionh 
with addedn, grsphics and text cursor posiyioning.




Re: [M100] 8201A Internal Battery Questions

2022-01-14 Thread Doug Jackson
That's what I use.  Works a treat

On Sat, 15 Jan 2022, 7:30 am Peter Vollan,  wrote:

> many people like a Supercap
>
> On Thu, 13 Jan 2022 at 21:47, Alex // nytpu  wrote:
>
>> On 2022-01-13 08:40PM, Gregory McGill wrote:
>> > Also emailing me when I'm out of stock on something gets much faster
>> > results than posting on a group
>> Sorry, I didn't know I could email you to request something.
>>
>> I wasn't posting to the group to call you out or expect you to get it in
>> stock faster, I was mostly asking if anyone had any alternatives to the
>> real replacement batteries.
>>
>> ~nytpu
>>
>> --
>> Alex // nytpu
>> a...@nytpu.com
>> gpg --locate-external-key a...@nytpu.com
>>
>


Re: [M100] 8201A Internal Battery Questions

2022-01-14 Thread Peter Vollan
many people like a Supercap

On Thu, 13 Jan 2022 at 21:47, Alex // nytpu  wrote:

> On 2022-01-13 08:40PM, Gregory McGill wrote:
> > Also emailing me when I'm out of stock on something gets much faster
> > results than posting on a group
> Sorry, I didn't know I could email you to request something.
>
> I wasn't posting to the group to call you out or expect you to get it in
> stock faster, I was mostly asking if anyone had any alternatives to the
> real replacement batteries.
>
> ~nytpu
>
> --
> Alex // nytpu
> a...@nytpu.com
> gpg --locate-external-key a...@nytpu.com
>


Re: [M100] 8201A Internal Battery Questions

2022-01-14 Thread birt_j
Sorry, I fixed the inventory level. If you want to use a CR2032 you need to 
include a diode so keep the computer from trying to charge it.

Jeff Birt
(Soigeneris)

-Original Message-
From: M100  On Behalf Of Alex // nytpu
Sent: Thursday, January 13, 2022 8:36 PM
To: m100@lists.bitchin100.com
Subject: [M100] 8201A Internal Battery Questions

Hi all,

A NEC PC-8201A I picked up just arrived, and I have a few questions, 
particularly on the internal battery.

It arrived and didn't boot with fresh alkaline batteries, so I opened it up.  
The internal NiCd battery was starting to corrode so I removed it (lucky I 
caught it now before there was a disaster). Everything else looked perfect 
internally so I closed it back up and tried booting it again, and it worked 
perfectly!  It's obviously not an issue but I was just wondering if anyone had 
that happen---it's strange to me that a dead battery being present doesn't boot 
at all while no battery at all works fine.

On replacing the internal battery, according to this email[a] from November 
both ArcadeShopper and Soigeneris had replacement batteries, however looking 
now neither of them have any in stock.  Does anyone know if they're going to 
get any more in?  I don't mind waiting if it'll just be a while but if they 
aren't planning on ever getting them back I'll look around elsewhere for one.

For alternatives, since the internal battery seems to be recharged from the 
main battery pack I assume a regular CR2032 would be a no-go, but has anyone 
tried out soldering in a socket + LIR2032?

~nytpu

[a]: 
http://lists.bitchin100.com/private.cgi/m100-bitchin100.com/2021-November/054669.html

--
Alex // nytpu
a...@nytpu.com
gpg --locate-external-key a...@nytpu.com