MiSTer FPGA Forum

xolod79 wrote: ↑Sun Jun 06, 2021 8:22 pm

This is my alpha version MiSTer port DVK core.
https://github.com/xolod79/MC1201
You can play original Tetris by Alexey Pajitnov!

Hi,

Thanks a lot for this core. It's awesome.

I'm trying last version (pdp2011 256kb BRAM), and I can't mount MY0 disk (selecting bank 1). With version MC1201_20211030 works (doing B and MY0 and bank 1).

Playing Tetris, from my point of view it's not so accurate, because although I selected set "CPU slow:" to "ON", Tetris game runs fast. Could you improve this point?

Thanks and kind regards,
Shark

Another issue... Release MC1201_20211030 and "CPU slow:" set to "ON".

INTEGER OVERFLOW

Thanks,
Shark

Hi,

Is someone can help me running tetris please ?

i mount drive : tetris.dsk and choose bank1

then i type : B
my1

and nothing happened, what should i do ?

THX for your help.

eLLuiGi wrote: ↑Wed Apr 12, 2023 2:30 pm

i mount drive : tetris.dsk and choose bank1

I don't think supplied container initdisk.img has anything in any banks besides bank #0. I'd say, you need to:

1. Mount the initdisk.img container (contrary to what OSD menu says, it's not a disk image, it's a container for all disk data)
2. Make sure you are using bank #0
3. Boot from MY0 (B MY0) and just start tetris by simply typing TETRIS

That's how the boot sequence may look like (using serial console as described above):

 152462
@B
$MY0

RT-11SJ  V05.01  

?MON-F-Trap to 10 002212

.DIR TETRIS.SAV
 
TETRIS.SAV    29  04-Dec-86      

 1 Files, 29 Blocks
 18 Free blocks

.

THANK YOU very much it runs fine !!!!

eLLuiGi wrote: ↑Wed Apr 12, 2023 6:26 pm

THANK YOU very much it runs fine !!!!

Is it running fine? Don't you get INTEGER OVERFLOW when you play Tetris? Which core version are you trying?

Thanks,
Shark

No integer Overflow, i used last MC1201 core (MC1201_20211030.rbf). A little fast but it's playable, now we wish an elektronika 60 core

eLLuiGi wrote: ↑Fri Apr 21, 2023 6:10 am

No integer Overflow, i used last MC1201 core (MC1201_20211030.rbf). A little fast but it's playable, now we wish an elektronika 60 core

Have you tried to set "CPU slow:" to "ON"?

Regards,
Shark

yes of course.

Release 2023123 with CPU fixes and some slowdowns CPU.
https://github.com/xolod79/MC1201/blob/ ... 231213.rbf

xolod79 wrote: ↑Wed Dec 13, 2023 5:57 pm

Release 2023123 with CPU fixes and some slowdowns CPU.
https://github.com/xolod79/MC1201/blob/ ... 231213.rbf

Cool, many thanks!

xolod79 wrote: ↑Wed Dec 13, 2023 5:57 pm

Release 2023123 with CPU fixes and some slowdowns CPU.
https://github.com/xolod79/MC1201/blob/ ... 231213.rbf

Hello,
just for curiosity and if i can ask, why this core is not present on https://github.com/MiSTer-devel section?

It's not an official core?

Thank you

lroby74 wrote: ↑Thu Dec 14, 2023 12:18 pm

xolod79 wrote: ↑Wed Dec 13, 2023 5:57 pm

Release 2023123 with CPU fixes and some slowdowns CPU.
https://github.com/xolod79/MC1201/blob/ ... 231213.rbf

Hello,
just for curiosity and if i can ask, why this core is not present on https://github.com/MiSTer-devel section?

It's not an official core?

Thank you

This core is under development and requires some bug fixes.

xolod79 wrote: ↑Mon Jun 07, 2021 8:18 pm

pgimeno wrote: ↑Mon Jun 07, 2021 10:45 am

Would the simh source code be any help? I have a PDP-11 running UNIX 7 under simh with these instructions.

Yes, LSX works!

20210607-2304521.jpg

Image from https://zx-pk.ru/threads/24962-unix-dly ... post794013

Hi,

Which command I need to load LSX?

I'm trying (loading dvk.dsk image first) with:

 152462
@B
$Y0

But nothing happens.

Thanks and best regards,
Shark

Hi there, thanks for this precious core! The speed of Tetris is still not the original one, too, is too fast, is it possible to slow down it more?

Thanks!