True 16MHz Mode

New sub forum for version 2 of the STF remake board.
User avatar
Icky
Moderator
Moderator
Posts: 1150
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: True 16MHz Mode

Post by Icky » Sun May 05, 2019 11:31 am

exxos wrote:
Sun May 05, 2019 11:19 am
640x200x16 ;)

What we need now is a shifter which can make use of the extra bandwidth ;)
Nice - Once this final STF Remake is realised its going to be quite some machine.

User avatar
exxos
Site Admin
Site Admin
Posts: 6862
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: True 16MHz Mode

Post by exxos » Sun May 05, 2019 11:41 am

Icky wrote:
Sun May 05, 2019 11:31 am
exxos wrote:
Sun May 05, 2019 11:19 am
640x200x16 ;)

What we need now is a shifter which can make use of the extra bandwidth ;)
Nice - Once this final STF Remake is realised its going to be quite some machine.
Indeed.. If we all still alive by then :lol:

The mongral will be a huge step forward. Then all the mongrel fixes can go on the next board where hopefully we will have more FPGA cores running.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

PhilC
Trusted Guru
Trusted Guru
Posts: 1439
Joined: Fri Mar 23, 2018 8:22 pm

Re: True 16MHz Mode

Post by PhilC » Sun May 05, 2019 12:09 pm

And with an FPGA and tweak to TOS, any resolution you like, as long as you have enough RAM.

User avatar
exxos
Site Admin
Site Admin
Posts: 6862
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: True 16MHz Mode

Post by exxos » Sun May 05, 2019 12:12 pm

PhilC wrote:
Sun May 05, 2019 12:09 pm
And with an FPGA and tweak to TOS, any resolution you like, as long as you have enough RAM.
I would assume EMUTOS already has options for extra video modes.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

PhilC
Trusted Guru
Trusted Guru
Posts: 1439
Joined: Fri Mar 23, 2018 8:22 pm

Re: True 16MHz Mode

Post by PhilC » Sun May 05, 2019 12:32 pm

Will find out after I've finally burnt a copy to Rom.

troed
Software Moderator
Software Moderator
Posts: 490
Joined: Mon Aug 21, 2017 10:27 pm

Re: True 16MHz Mode

Post by troed » Sun May 05, 2019 11:27 pm

Icky wrote:
Sun May 05, 2019 10:59 am
IMG_3796.jpg
So I have a piece of software that will make that videomode actually produce a workable desktop ... :)

User avatar
Icky
Moderator
Moderator
Posts: 1150
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: True 16MHz Mode

Post by Icky » Mon May 06, 2019 2:04 pm

troed wrote:
Sun May 05, 2019 11:27 pm
So I have a piece of software that will make that videomode actually produce a workable desktop ... :)
Hi troed - Am interested in the software you have. I have read outposts around the extra modes and its very interesting.

User avatar
exxos
Site Admin
Site Admin
Posts: 6862
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: True 16MHz Mode

Post by exxos » Mon May 06, 2019 10:44 pm

16MHz vs Falcon.

IMG_4140.JPG
IMG_4140.JPG (100.83 KiB) Viewed 164 times

The int-div is a lot slower on the 68000 over the optimized 030.

EDIT:

I don't remember if the Falcon benchmark was with or without the waitstates on ROM...
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

PhilC
Trusted Guru
Trusted Guru
Posts: 1439
Joined: Fri Mar 23, 2018 8:22 pm

Re: True 16MHz Mode

Post by PhilC » Mon May 06, 2019 10:46 pm

Nothing your 50mhz cpu wont cure no doubt

User avatar
exxos
Site Admin
Site Admin
Posts: 6862
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: True 16MHz Mode

Post by exxos » Mon May 06, 2019 10:48 pm

PhilC wrote:
Mon May 06, 2019 10:46 pm
Nothing your 50mhz cpu wont cure no doubt
Yeah, int-div probably work out about the same as the 030 CPU when the 68000 is running 50MHz.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

Post Reply