Hello All!

in facebook there is some groups about homemade MBC boards, Z80, V20, 68K, all running cpm, what else ? :)

i now find the 68k variant have GCC ?

depending on uterm or not, it can have vga monitors or just serial via minicom, so in ssh shell one can use cpm from linux terminals, pretty cool imho

sorry for being biased about cpm


Regards Benny

... too late to die young :)

--- Msged/LNX 6.1.2 (Linux/5.11.18-gentoo-dist (x86_64))
* Origin: I will always keep a PC running CPM 3.0 (2:230/0)

Hello Benny!

Saturday May 08 2021 02:44, you wrote to All:

Hello All!

in facebook there is some groups about homemade MBC boards, Z80, V20,
68K, all running cpm, what else ? :)

i now find the 68k variant have GCC ?

depending on uterm or not, it can have vga monitors or just serial via minicom, so in ssh shell one can use cpm from linux terminals, pretty
cool imho

sorry for being biased about cpm

Even better is to use MPM for multi cpu systems works a treat.

Vincent

--- Mageia Linux v7.1 X64/Mbse v1.0.7.21/GoldED+/LNX 1.1.5-b20180707
* Origin: Air Applewood, The Linux Gateway to the UK & Eire (2:250/1)

Hello Vincent!

09 May 2021 20:29, Vincent Coen wrote to Benny Pedersen:

Even better is to use MPM for multi cpu systems works a treat.

helo world in c does not need it :)

imho mpm is just timesliceing tasks ?, but if this is limited to 64K ram its soon out of mem

i still like to see mpm where it can be usefull, cpm is already multi-user atleast, while dos is not


Regards Benny

... too late to die young :)

--- Msged/LNX 6.1.2 (Linux/5.11.19-gentoo-dist (x86_64))
* Origin: I will always keep a PC running CPM 3.0 (2:230/0)

Hello Benny!

Wednesday May 12 2021 13:37, you wrote to me:

Hello Vincent!

09 May 2021 20:29, Vincent Coen wrote to Benny Pedersen:

Even better is to use MPM for multi cpu systems works a treat.

helo world in c does not need it :)

imho mpm is just timesliceing tasks ?, but if this is limited to 64K
ram its soon out of mem

i still like to see mpm where it can be usefull, cpm is already
multi-user atleast, while dos is not

My memory says no it is not limited to 64k. 1 Mb seems to ring a wee bell but even that can be over ridden if using the right fossils etc.

In the 70's I used to use it on a Cromemco with more than 1Mb but did switch over to Cromix (*nix) as I had to support more than 6 users running at the same
time using the same software, let alone others doing dev work and MPM could not
hack it even with a bunch of changes by myself and the lead programmer in the US.


Vincent

--- Mageia Linux v7.1 X64/Mbse v1.0.7.21/GoldED+/LNX 1.1.5-b20180707
* Origin: Air Applewood, The Linux Gateway to the UK & Eire (2:250/1)

Hello Vincent!

17 May 2021 15:32, Vincent Coen wrote to Benny Pedersen:

Even better is to use MPM for multi cpu systems works a treat.

helo world in c does not need it :)

imho mpm is just timesliceing tasks ?, but if this is limited to 64K
ram its soon out of mem

i still like to see mpm where it can be usefull, cpm is already
multi-user atleast, while dos is not

My memory says no it is not limited to 64k. 1 Mb seems to ring a wee
bell but even that can be over ridden if using the right fossils etc.

it depends on what cpu is used, z80 is true 8bit only, but as i remember it have 16bit internal registers, that cant be used for more memory then 64k

if it was v20 cpu it have mmu to handle up to yes 1Mb :)

commodore 128d have mmu aswell, it was just never maked the 1024K extension board to upgrade it, it colledged with the 128K internal mem, so it would have to be 768k extension board hardware ram mapped with mmu block/banks with 64k pages

would that be a dream machine ?, then bill could say no one needs more memory then 1M with dos 1.0 :)

In the 70's I used to use it on a Cromemco with more than 1Mb but did switch over to Cromix (*nix) as I had to support more than 6 users running at
the same time using the same software, let alone others doing dev work and MPM
could not hack it even with a bunch of changes by myself and the lead programmer
in the US.

cpm 86 ?, i still not seen one of them on facebook, only so far z80 mbc, v20 mbc, 68k mbc is easy to find prints for now, but it could be nice to make cpm 86 mbc aswell

dream would had being if cpm was 32bit aswell, i remember acorn bbc, had a 2nd board computer with the pipe connection, that was very expansive board at that time, and zx80 was very checp killing the ground for new models with 32bit

had computers being 32bit in the first place we would not have to live with ascii porn :)


Regards Benny

... too late to die young :)

--- Msged/LNX 6.1.2 (Linux/5.12.7-gentoo-dist (x86_64))
* Origin: I will always keep a PC running CPM 3.0 (2:230/0)