Search found 993 matches

by iss
Fri Jan 10, 2020 12:24 pm
Forum: Operating systems
Topic: ROM 1.22?
Replies: 16
Views: 1921

Re: ROM 1.22?

Just remember that the Oric with the EPROM won't work with a disk interface (I think also won't with Erebus) out of the box. It needs some hardware patching. +1 Good advice! And the common sense is to follow it ... but don't forget this is Oric ! Here is at-least one proof that there are exceptions...
by iss
Fri Jan 10, 2020 12:15 pm
Forum: Technical questions
Topic: Atmos ROM
Replies: 24
Views: 20463

Re: Atmos ROM

Bit delayed but as promised here are the results from the test : https://youtu.be/9QGZiYRlDH4 I used Jasmin instead of Microdisc (because it's on my small working table already) but there should be no differences related to /ROMDIS signal. I'll repeat the test with Microdisc asap just to be 120% su...
by iss
Fri Jan 10, 2020 8:33 am
Forum: Operating systems
Topic: ROM 1.22?
Replies: 16
Views: 1921

Re: ROM 1.22?

DigitalDunc wrote:
Fri Jan 10, 2020 8:08 am
Would there be many changes required to run these new ROM images on a real Oric? I’m aware the keyboard could be an issue.
What you mean with "changes"? You need to burn the ROM-file to а suitable EPROM (for instance 27128) with an programmer and use it.
by iss
Fri Jan 10, 2020 1:11 am
Forum: Technical questions
Topic: Jasmin time
Replies: 29
Views: 5675

Re: Jasmin time

Maybe I need to read your messages more carefully... @Chema ; Please, do it, your opinion is important for me, honestly :!: Above problem is not related to any alignment. My (thanks to jorodr's ) Jasmin controller is most probably faulty. Something happens with the data bus and WD1770 starts to beh...
by iss
Thu Jan 09, 2020 10:32 pm
Forum: Technical questions
Topic: Jasmin time
Replies: 29
Views: 5675

Re: Jasmin time

Here is the copy loop which copies the loaded picture from memory buffer at 0x8000 to video memory at 0xA000: ; -------------------------------------------------------------------------------- pic_blit ldy #$00 sty p_src sty p_dst lda #>$8000 sta p_src+1 lda #>$a000 sta p_dst+1 ldx #$10 blit_loop ld...
by iss
Thu Jan 09, 2020 10:17 pm
Forum: Technical questions
Topic: Jasmin time
Replies: 29
Views: 5675

Re: Jasmin time

After almost one month of 24/7 hard fight with Jasmin I can say that I'm really(!) close to finish this project ... surprisingly with success! :) Here is a story about the last issue I hit (sorry for the number of videos): From the very beginning of my work I prepared some demos with series of sampl...
by iss
Thu Jan 09, 2020 6:08 pm
Forum: Technical questions
Topic: Jasmin time
Replies: 29
Views: 5675

Re: Jasmin time

... Jasmin's independent clock should cause a race condition on the data request bit ... Yes, there is such race condition and even more - what you read from status/data registers depends on alignment of some addresses :shock: . I'm preparing to publish lot of info which I've collected recently... ...
by iss
Thu Jan 09, 2020 3:22 pm
Forum: Operating systems
Topic: ROM 1.22?
Replies: 16
Views: 1921

Re: ROM 1.22?

@HigashiJun : if you download the ZIP files and decompress them then you'll find documents for each version which describe very detailed all changes. What I can make as conclusion is that all "localized" versions (i.e. uk,fr,de,se,es) are made to be used only with emulators, so your "localized" des...
by iss
Mon Jan 06, 2020 9:25 am
Forum: Emulators
Topic: Clock Signal — an Oric emulator for macOS and Linux
Replies: 117
Views: 61638

Re: Clock Signal — an Oric emulator for macOS and Linux

Thanks, @ThomH ! Perfectly timed release - just what I need at the moment :). About the Jasmin button: actually there are 2 buttons on Jasmin ver.2 ;) - the left button acts as simple reset with paged BASIC ROM, the right button activates Jasmin ROM tries to boot and if there is no disk then falls b...
by iss
Sun Jan 05, 2020 11:46 am
Forum: Operating systems
Topic: ROM 1.22?
Replies: 16
Views: 1921

Re: ROM 1.22?

Every zip file contains a nice document with all changes explained - very good! With quick compare I counted dozens of JSR/RTS -> JMP - this will give some speed up. Else what bothers me is the software compatibility but I think the changes are made very clever and the chance that something fails is...
by iss
Sat Jan 04, 2020 6:53 pm
Forum: General Discussion
Topic: Oriclopedia: A series of videos on all things Oric
Replies: 73
Views: 10707

Re: Oriclopedia: A series of videos on all things Oric

Thanks, Dbug, very cool video! I have some comments: - I know everyone is aware of this simple rule, so just a remainder: Safety first! Avoid to plug/unplug cables when devices are powered-on! ;) - Your Oric got frozen twice in very specific condition - whole (video) memory filled with 0x55 except t...
by iss
Thu Jan 02, 2020 10:44 pm
Forum: Emulators
Topic: Oricutron 1.0 (EDIT: Now 1.2)
Replies: 171
Views: 121380

Re: Oricutron 1.0 (EDIT: Now 1.2)

Let's start the new year with something new:
Oricutron for developers updated: 2020-01-02.
by iss
Thu Jan 02, 2020 10:41 pm
Forum: Demos
Topic: OricExos - making the impossible
Replies: 156
Views: 44247

Re: OricExos - making the impossible

2020-01-02: Last 2 demos are re-captured and updated: OricExos Bitcoin Miner (new) https://youtu.be/WzkdVU1xUms OricExos as 9-Channel Sound Player (new) https://youtu.be/b52HyvRngNo OricExos emulator updated : * new AVI-file creator and codec which allow full-color video recording; * all demos can ...
by iss
Mon Dec 30, 2019 10:12 am
Forum: General Discussion
Topic: Season greetings!
Replies: 24
Views: 3763

Re: Season greetings!

Here we go: :)

by iss
Sun Dec 29, 2019 12:11 am
Forum: Technical questions
Topic: Different tape input sound volume
Replies: 8
Views: 1652

Re: Different tape input sound volume

This are the added diodes: IMG_1939.jpg using small sharp cutting pliers you can cut their wrapped together leads (as on picture) and test. It's easy later to solder the place again if needed. For the moment I gave up updating Novalight - I still have a mystery to solve with the latest version I wro...