Search found 2323 matches

by Dbug
Sat Aug 19, 2017 10:01 am
Forum: Operating systems
Topic: Orix update thread
Replies: 18
Views: 1683

Re: Orix update thread

Well, the thing is: When replaying samples on only one channel, you get 16 volume values that are not linear at all, it's really an exponential curve, with most of the lower ones being very close. So technically, when you go from 4 bits encoding (like what I did in Oric Tech) to 2 bits encoding, you...
by Dbug
Sat Aug 19, 2017 9:12 am
Forum: Operating systems
Topic: Orix update thread
Replies: 18
Views: 1683

Re: Orix update thread

It sounds quite good! Streaming would be fun, just for curiosity what's the WAV file parameters? (if it's a WAV file...) Frequency, bit resolution ? It's encoded with 2 bit per sample with a small table of 4 volume values sent to the volume register of channel A. For the frequency I've not checked:...
by Dbug
Thu Aug 17, 2017 10:26 am
Forum: Games
Topic: EDGE - a new game which needs sounds and music
Replies: 8
Views: 250

Re: EDGE - a new game which needs sounds and music

Nice game, looks quite clean and modern :) ISS already answered some of the questions, but generally speaking: - Neither CC65 or the OSDK compiler will give you small and compact code. CC65 is less worse, but we are talking incremental improvements. Think of C as a nice way to prototype, but ultimat...
by Dbug
Tue Aug 08, 2017 6:15 pm
Forum: Games
Topic: The hobbit on disc!
Replies: 10
Views: 7314

Re: The hobbit on disc!

Of course, the idea was to patch the game :)
If the save data is just one chunk of memory saved, it should not be too difficult.

One reason I could think of to use a custom format would be to make it harder to patch a save game to cheat.
by Dbug
Tue Aug 08, 2017 2:08 pm
Forum: Games
Topic: The hobbit on disc!
Replies: 10
Views: 7314

Re: The hobbit on disc!

I'm afraid The Hobbit uses custom saving and loading routines that work only with cassette. And, even if it used the ROM calls it would be necessary to have some patched ROM in order to emulate that behavior, I think. Does it need the custom saving and loading routines at all? As long as the SAVE a...
by Dbug
Tue Aug 08, 2017 1:36 pm
Forum: Demos
Topic: Line Feed - Oric MCP40 demo at Solskogen
Replies: 15
Views: 5760

Re: Line Feed - Oric MCP40 demo at Solskogen

Steve M wrote:
Tue Aug 08, 2017 12:32 pm
Found another source of pens here.
https://www.thefuturewas8bit.com/shop/a ... -1020.html
There's a 'OUT OF STOCK' gray text under 'PLOTTER PENS COMMODORE 1520 - ORIC PCP40 TANDY CGP-115 ATARI 1020'
by Dbug
Mon Aug 07, 2017 4:50 pm
Forum: 6502 assembly coding
Topic: Convert a byte as hex string (to display on screen)
Replies: 9
Views: 377

Re: Convert a byte as hex string (to display on screen)

Be careful when playing with the decimal mode: That can have surprising effect on an interrupt routine that can trigger between the calls to SED and CLD. Do you mean ideally the author should have disabled the interrupts first? (In my case, as I'm operating while a program is loading, there are no ...
by Dbug
Mon Aug 07, 2017 7:03 am
Forum: 6502 assembly coding
Topic: Convert a byte as hex string (to display on screen)
Replies: 9
Views: 377

Re: Convert a byte as hex string (to display on screen)

Be careful when playing with the decimal mode: That can have surprising effect on an interrupt routine that can trigger between the calls to SED and CLD.
by Dbug
Tue Aug 01, 2017 8:32 am
Forum: General Discussion
Topic: Summer break
Replies: 9
Views: 431

Re: Summer break

Let me guess - she turned it off and on again! :) She definitely did that. Also installed the latest firmware update on the router, recreated the list of fixed ip and routing table to redirect the http traffic to the server, and used the unbuntu repair console to fix a problem with the second drive...
by Dbug
Fri Jul 28, 2017 9:50 pm
Forum: General Discussion
Topic: Summer break
Replies: 9
Views: 431

Re: Summer break

Well, I indeed should not have used the word "break", since the server broke yesterday, fortunately my gf was able to fix all the problems :)
by Dbug
Mon Jul 17, 2017 8:58 pm
Forum: General Discussion
Topic: Summer break
Replies: 9
Views: 431

Summer break

Hi,
I'm going on vacation for about two weeks, hopefully everything should be fine :)

(Famous last words)
by Dbug
Mon Jul 17, 2017 3:59 pm
Forum: Games
Topic: Space:1999 feedback and review thread
Replies: 36
Views: 40932

Re: Space:1999 feedback and review thread

(Btw I'm fascinated by the number of new games you build on the Oric. I'd neved had patience to do one in full asm for the thomsons. Congrats!) You don't have to do a full assembler game, it's perfectly doable to do the core in C, and use assembler only for the critical parts (like for example the ...
by Dbug
Wed Jul 12, 2017 10:56 am
Forum: Hardware hacks and extensions
Topic: Cumulus Firware Compilation
Replies: 136
Views: 33519

Re: Cumulus Firware Compilation

An eprom is an eprom, people could replace their Microdisc eprom as well :)
by Dbug
Mon Jul 10, 2017 8:31 pm
Forum: Hardware hacks and extensions
Topic: Cumulus Firware Compilation
Replies: 136
Views: 33519

Re: Cumulus Firware Compilation

All I mean is that this eprom is far from being a core part of the product, and in case of legal troubles looming, it would probably take a week to get a replacement one, and we could even use the additional room for adding stuff like a standard file loading library :p
by Dbug
Mon Jul 10, 2017 8:16 pm
Forum: Hardware hacks and extensions
Topic: Cumulus Firware Compilation
Replies: 136
Views: 33519

Re: Cumulus Firware Compilation

The EEPROM contain only the microdisk ROM and nothing else. (which is on a legal point a view quite problematic to be honest) It would probably be possible to replace the EEPROM by our own code. As far as I remember, 90% of it is unused code from the first DOS, all the EEPROM does is to basically l...