English Amiga Board


Go Back   English Amiga Board > Coders > Coders. General

 
 
Thread Tools
Old 14 December 2020, 10:40   #1
no_body
Banned
 
Join Date: Feb 2020
Location: Roma
Posts: 11
FULLVGA OCS 1fc,0: true for 30 years, real today!

Can the OCS chipset handle full vga screens? In short ... yes. Those with dedicated hardware will see that a handful of "new" lines of code show that the "old" amiga 500 OSC was ready from day one, ever since it was designed and arrived on our children's desks ... 2 versions: 3 bitplane 32x32 scroll (I still have to fix the pauses because on vga or pal the centering is obviously different), the other is a 2 bitplane, 128x128 pixel font full vga starfield sprites... also this impressive on vga. In better conditions and with help, moral support and sharing with you would have been better....

hope 2 to c u one day... i'm here...

https://drive.google.com/file/d/15Im...ew?usp=sharing

N: B: the text is provisional (I hope ...) ;-)
no_body is offline  
Old 17 December 2020, 11:28   #2
no_body
Banned
 
Join Date: Feb 2020
Location: Roma
Posts: 11
Dear normal beings, I am sending you the first working version on OCS amiga and floppy boot, of the 3 bitplane fullvga with the sumptuous AXIS font I integrated. The differences compared to the code of the previous intro with the 2 bitplane are really many. I had to lighten everything and restart from just OCS to get a stable scroll without uncertainties or clicks. The third bitplane of the font drives the whole playfield crazy if I use the routines of the previous version. Meanwhile, I am satisfied with the record beauty of this fullsize version font! Note: JUSTOCSnfloppy boot! Sometimes works on others chipsets too but... it's the first version 3 bitplane scroll fullvga in life and "amiga scene". If i'll survive we could do something better together!?

deleted the off topic, random rant - bippym
Federico

https://drive.google.com/file/d/1_hp...ew?usp=sharing

Last edited by BippyM; 22 December 2020 at 15:45.
no_body is offline  
Old 20 December 2020, 13:03   #3
no_body
Banned
 
Join Date: Feb 2020
Location: Roma
Posts: 11
Done...

Ok, the mix of size and aspect ratio between playfield, bitplane and
modulo generates a mix that is not solved by deactivating the AGA /
1fc, 0. In any case it is now functional on both OCS/AGA systems, floppy
boot. Some minor fixes and more stable source code also being tested
on OCS / AGA. You will find 2 versions with different scroll speeds
that demonstrate, apart from the blitter clicks, absent on the VGA
screen, that the scroll is rock solid!
Ciao...

https://drive.google.com/file/d/1Eyt...ew?usp=sharing

deleted the off topic, random rant - bippym

Last edited by BippyM; 22 December 2020 at 15:45.
no_body is offline  
Old 20 December 2020, 21:59   #4
redblade
Zone Friend

redblade's Avatar
 
Join Date: Mar 2004
Location: Middle Earth
Age: 37
Posts: 1,714
So this Util will change Amiga output from 15khz to 31khz with its custom copper list?
redblade is offline  
Old 22 December 2020, 12:11   #5
no_body
Banned
 
Join Date: Feb 2020
Location: Roma
Posts: 11
deleted the off topic and frankly racist, random rant - bippym


Ok ... as I told you earlier I had noticed a strange click, different than usual deriving from the blitter. In these new executables you can see what I was referring to. If you upload the intro from AGA everything works regularly, a few lines of code very light compared to the previous version, however it means being over the maximum limit of OCS / 68000, loading is still possible, sometimes the OCS cannot "see" the scroll bitplanes correctly, but a reset is enough ... The upper part of the font is "conditioned" by the resources of the chipset / cpu.
The mix in the previous version and the startup seems to be compatible with all the amiga floppy/workbech systems on which I have been able to test but, I don't have all the amiga machines and variants .. some of you can do a try? (just4homosapiens hetero intelligent males or 2 female coders maybe in the world !?) c u...

https://drive.google.com/file/d/1244...ew?usp=sharing

Last edited by BippyM; 22 December 2020 at 15:47.
no_body is offline  
Old 22 December 2020, 15:32   #6
BippyM
Global Moderator

BippyM's Avatar
 
Join Date: Nov 2001
Location: Derby, UK
Age: 45
Posts: 9,216
Thread cleaned. No_body stop posting off topic random, and seemingly racist remarks (I'm unsure if it is racism at this point, I'll give you the benefit of doubt).

Last edited by BippyM; 22 December 2020 at 15:48.
BippyM is offline  
Old 22 December 2020, 21:31   #7
Ian
Global Moderator

Ian's Avatar
 
Join Date: May 2001
Location: Derby, UK
Age: 43
Posts: 2,246
Quote:
Originally Posted by The Rules
A member will be removed from the EAB if they:
Post racist remarks
Post sexist remarks
Post homophobic remarks
Persistently troll specific users and/or projects
Personally attack other users
Have multiple accounts
Only posting in off-topic sections
Consistently derail topics
Are inactive in the forum
Bolded are rules you have broken. Seek help. Just not here.
Ian is offline  
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sold A4000 25 years ago, but i got it back today! IvanEBC Nostalgia & memories 12 17 June 2016 16:02
The Challenger shuttle exploded 30 years ago today Jope Nostalgia & memories 7 29 January 2016 21:30
How do I run this years Revision demos on a real A1200? stu232 Amiga scene 12 28 April 2014 11:30
The best Amiga shooter appears again after 20 years, in a real computer mag! TorbenLarsen Retrogaming General Discussion 107 07 March 2013 10:40

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +2. The time now is 11:26.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Page generated in 0.08256 seconds with 15 queries