Search found 1351 matches

by Symoon
Mon May 28, 2018 10:51 am
Forum: Games
Topic: OType
Replies: 75
Views: 52573

Re: OType

I recall I found back some data for this tune, but it didn't exactly match the one in the video. Can't recall how different it was, but I can try and find it back if you wish.
by Symoon
Mon May 28, 2018 7:33 am
Forum: Games
Topic: OType
Replies: 75
Views: 52573

Re: OType

There are many different demos for O-Type, that show the project evolved from different ideas.
You can still get the CEO-Mag issue dedicated to Jonathan, where IIRC I tried to sum up all these, maybe it can help (however I'm not sure I put links where to download them)
by Symoon
Mon May 28, 2018 6:30 am
Forum: Tape and floppy disk converters
Topic: Experimental very fast tape loading
Replies: 132
Views: 16348

Re: Experimental very fast tape loading

I'm currently working at reducing the loader's loading time. It's about 1.1 second and this is a penalty for multipart programs, expecially if they're short. Ok, 1st tests: the loader is now only 0.63 second long... But is not working yet, aaaargh ;) Had to cut it in several parts, it's actually a ...
by Symoon
Sun May 27, 2018 9:51 pm
Forum: Painting tricks
Topic: HIRESMAN
Replies: 10
Views: 6463

Re: HIRESMAN

Found this back.
So many things to explore!
HiresMan.zip
(13.6 KiB) Downloaded 21 times
by Symoon
Sun May 27, 2018 8:00 am
Forum: Painting tricks
Topic: HIRES ghost line ?
Replies: 12
Views: 1227

Re: HIRES ghost line ?

There are also all the "invert" bytes values that could be used... But I mean, technically it can be achived, but for a human brain this seems a bit complicated ;) To anyone willing to dig this subject, another way to begin with could be checking existing known HIRES pictures, and see if they alread...
by Symoon
Fri May 25, 2018 2:03 pm
Forum: Painting tricks
Topic: HIRES ghost line ?
Replies: 12
Views: 1227

Re: HIRES ghost line ?

ibisum wrote:
Fri May 25, 2018 1:41 pm
I like the idea of self-executing image files on Oric! But not just using 40bytes .. what about putting it all in the images too .. ;)
Yep, having data that can be both drawing and executable code is quite a challenge, but could be done? ;)
by Symoon
Fri May 25, 2018 11:59 am
Forum: Painting tricks
Topic: HIRES ghost line ?
Replies: 12
Views: 1227

Re: HIRES ghost line ?

Actually that's funny. That means that by adding and saving a JMP $BF40 right before the Hires screen (in 9FFD), you can make a Hires screen self-executing some code. For instance loading the next part, which avoids a small loader. Other option, adding this JMP at the start of the Hires screen (4C ...
by Symoon
Fri May 25, 2018 1:09 am
Forum: Painting tricks
Topic: HIRES ghost line ?
Replies: 12
Views: 1227

Re: HIRES ghost line ?

Actually that's funny. That means that by adding and saving a JMP $BF40 right before the Hires screen (in 9FFD), you can make a Hires screen self-executing some code. For instance loading the next part, which avoids a small loader. Other option, adding this JMP at the start of the Hires screen (4C 4...
by Symoon
Thu May 24, 2018 6:53 pm
Forum: Painting tricks
Topic: HIRES ghost line ?
Replies: 12
Views: 1227

Re: HIRES ghost line ?

I've not tested, but I would assume that these 40 bytes are free to use, like the bytes from BFE0 to BFFF :) It seems so! It's initialized as the following TEXT lines, just not displayed. This rings a bell with one of your pages where you explain the TEXT/HIRES mix mode and in an example, the highe...
by Symoon
Thu May 24, 2018 3:05 pm
Forum: Tape and floppy disk converters
Topic: Experimental very fast tape loading
Replies: 132
Views: 16348

Re: Experimental very fast tape loading

Hey, I just realized I completely forgot about checking the tap you sent me! Sorry, sorry, sorry... I'll do it ASAP. No problem ;) Hope it works for you. Tested it fine on 90% of my Oric-1 and Atmos (10 machines, 1 fail). BTW, I realise the idea of killing the HIRES Loading bug is not so useful... ...
by Symoon
Thu May 24, 2018 12:31 pm
Forum: Painting tricks
Topic: HIRES ghost line ?
Replies: 12
Views: 1227

HIRES ghost line ?

Hi, The HIRES drawing screen ends in BF3F. The 3 TEXT lines at the bottom range from BF68 to BFE0. What happens between BF40 and BF67? Is this wasted RAM space? Is this line invisible because something like it holds an attribute to switch from HIRES to TEXT? Do you think thiese bytes can be used to ...
by Symoon
Thu May 24, 2018 12:10 pm
Forum: Tape and floppy disk converters
Topic: Experimental very fast tape loading
Replies: 132
Views: 16348

Re: Experimental very fast tape loading

Questions for you guys. For the price of 0,002 seconds of additional loading time ( :lol: ), I think I can fix (in Novalight) the ugly HIRES Loading bug from ROM 1.0, that displays "Loading" in the middle of a HIRES screen being loaded. The question is: should I keep this bug, being typical of the R...
by Symoon
Tue May 22, 2018 10:12 pm
Forum: Tape and floppy disk converters
Topic: Experimental very fast tape loading
Replies: 132
Views: 16348

Re: Experimental very fast tape loading

I'm currently working at reducing the loader's loading time. It's about 1.1 second and this is a penalty for multipart programs, expecially if they're short.
I hope I can reduce it to something like 0.9 seconds (or better?), by structuring the code differently.
by Symoon
Mon May 21, 2018 11:29 pm
Forum: 6502 assembly coding
Topic: 6502 flags C, N, Z, V and tests
Replies: 7
Views: 424

Re: 6502 flags C, N, Z, V and tests

All those other options are very interesting, keep bringing them on ;) (Initially I made this table was because I needed extremely compact and fast ways to set/test/branch; I counted bytes and cycles many, many times... But having other ways to do is very interesting and can sometimes spare a specif...
by Symoon
Mon May 21, 2018 10:00 pm
Forum: Tape and floppy disk converters
Topic: Oric DSK Manager
Replies: 38
Views: 3383

Re: Oric DSK Manager

+1 I think you're right. I belive these "merged" files were created 1st to record BIG files, like accounts history, addresses, whatever. Here André seemed to have used this feature in another way, to make a multipart file. In the end it's probably technically the same thing, but used for two differe...