Search found 372 matches

by 0xC0DE
Mon Dec 02, 2019 1:56 pm
Forum: software: classic games
Topic: The very best Beeb tunes?
Replies: 12
Views: 477

Re: The very best Beeb tunes?

Thanks for the suggestions! (keep them coming please)

To be clear: all credit goes to SimonM who created the tools/scripts to convert BBC tunes to the Elk, not me!
by 0xC0DE
Mon Dec 02, 2019 12:44 pm
Forum: software: classic games
Topic: The very best Beeb tunes?
Replies: 12
Views: 477

The very best Beeb tunes?

SimonM has been doing an amazing job in converting the Bad Apple chiptune (by Inverse Phase) to the Acorn Electron, for use in my version of this well known demo. As you know not many great tunes exist on the Electron. Until now that is! :?: What are (in your humble opinion) the very best Beeb tunes...
by 0xC0DE
Sun Dec 01, 2019 8:33 am
Forum: hardware
Topic: Simple Electon MMC Interface
Replies: 78
Views: 9126

Re: Simple Electon MMC Interface

Very nice!
by 0xC0DE
Tue Nov 26, 2019 9:00 am
Forum: hardware
Topic: MMFS Bad sum?
Replies: 2
Views: 161

Re: MMFS Bad sum?

Thanks Dave. It's my own code that this is happening with. But not very often and I can't reproduce the Bad sum error even on consecutive runs of my program. Will have to investigate further. I thought maybe there could be other causes triggering this error.
by 0xC0DE
Sun Nov 24, 2019 11:35 pm
Forum: hardware
Topic: MMFS Bad sum?
Replies: 2
Views: 161

MMFS Bad sum?

Sometimes I get the Bad sum error on MMFS 1.41. Not every time and not always at the same place. What are the main causes of this? Using Ramtop hardware on Electron btw
by 0xC0DE
Sat Nov 23, 2019 8:58 pm
Forum: programming
Topic: BBC b, reading the CRT vertical sync position.
Replies: 13
Views: 1243

Re: BBC b, reading the CRT vertical sync position.

May I just add that I'm enjoying reading about your enthusiastic journey towards getting better at programming our beloved computers. It's giving me great joy as well
by 0xC0DE
Thu Nov 21, 2019 4:05 pm
Forum: software: classic games
Topic: Elaborate Repton 3 Electron Cheat !!
Replies: 3
Views: 230

Re: Elaborate Repton 3 Electron Cheat !!

=D> You're on a roll!
by 0xC0DE
Thu Nov 21, 2019 4:03 pm
Forum: hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 894

Re: OSWORD &7F on DFS vs MMFS

Interesting information, thank you!
by 0xC0DE
Sun Nov 17, 2019 11:43 am
Forum: hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 894

Re: OSWORD &7F on DFS vs MMFS

Based on that, it looks like I did enable interrupts in OSWORD 7F in MMFS 1.37: https://github.com/hoglet67/MMFS/commit/1442abe4de8a7798bc81da397be5b2b93df84d13 Do you have a view as to whether it is right or wrong to do this? Well, I don't have a strong opinion either way but it certainly took me ...
by 0xC0DE
Sat Nov 16, 2019 11:14 pm
Forum: hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 894

Re: OSWORD &7F on DFS vs MMFS

My interrupt handler wasn't saving the Y register, only A and X because I didn't use Y in a previous version of the code :oops: Apparently DFS didn't care about that but MMFS does. I have a follow up question for you though: does MMFS enable interrupts (CLI) regardless of the fact that they were dis...
by 0xC0DE
Sat Nov 16, 2019 9:06 pm
Forum: hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 894

Re: OSWORD &7F on DFS vs MMFS

Just to add: my problems with MMFS are solved. My code is now running on DFS as well as on MMFS. Turns out that I made a small mistake in my interrupt driven screen drawing code that wasn't giving any problems on DFS but messed things up on MMFS. Solved!
by 0xC0DE
Sat Nov 16, 2019 8:56 pm
Forum: hardware
Topic: *SOLVED* Testers wanted! Anyone with Acorn Electron + DFS and/or MMFS hardware
Replies: 4
Views: 213

Re: *SOLVED* Testers wanted! Anyone with Acorn Electron + DFS and/or MMFS hardware

Good news: I have been staring at this problem for days but this evening I found that my interrupt driven screen drawing routine was faulty. It didn't give a problem on DFS but it created a mess when run on MMFS. Consider it SOLVED but I'm pretty sure I am going to need testers again in the future :...
by 0xC0DE
Sat Nov 16, 2019 7:04 pm
Forum: hardware
Topic: *SOLVED* Testers wanted! Anyone with Acorn Electron + DFS and/or MMFS hardware
Replies: 4
Views: 213

Re: Testers wanted! Anyone with Acorn Electron + DFS and/or MMFS hardware

More details and a first test disk. Assumption: DFS test is working in 3 Acorn Electron emulators. It should work on real DFS hardware AND it should work on MMFS hardware. Reality: I have no real DFS hardware to test on. And my tests fail on 3 different MMFS systems (all EPP based though). Test: loa...
by 0xC0DE
Sat Nov 16, 2019 5:42 pm
Forum: hardware
Topic: *SOLVED* Testers wanted! Anyone with Acorn Electron + DFS and/or MMFS hardware
Replies: 4
Views: 213

Re: Testers wanted! Anyone with Acorn Electron + DFS and/or MMFS hardware

That's great Dave! I will post some details and a test disk. Anybody else willing to test as well can just do that of course :mrgreen:
by 0xC0DE
Sat Nov 16, 2019 5:27 pm
Forum: hardware
Topic: *SOLVED* Testers wanted! Anyone with Acorn Electron + DFS and/or MMFS hardware
Replies: 4
Views: 213

*SOLVED* Testers wanted! Anyone with Acorn Electron + DFS and/or MMFS hardware

I need some help from anyone willing to run a few test programs on an Acorn Electron with any DFS and/or MMFS hardware. I've got some simple sector loading tests working on DFS in all Electron emulators. And I've been testing on a few MMFS hardware solutions that keep failing these simple tests. I h...
by 0xC0DE
Thu Nov 14, 2019 7:33 pm
Forum: programming
Topic: Equb equw equd etc
Replies: 9
Views: 474

Re: Equb equw equd etc

BeebAsm definitely supports a list of comma-separated values after equb/equw/equd/equs. The values can be decimal, hexadecimal, binary, characters and strings. Edit: and variables, labels, macros, etc.
by 0xC0DE
Mon Nov 11, 2019 8:04 am
Forum: hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 894

Re: OSWORD &7F on DFS vs MMFS

I have tested on 2 products by Ramtop. The ElkSD64 connected to the Elk expansion port. And the ElkSD-Plus1 which plugs into a cartridge slot of the Plus 1.

What is the expected speed of MMFS on such a setup?
by 0xC0DE
Sun Nov 10, 2019 9:21 pm
Forum: software: classic games
Topic: Elaborate Repton 1 Electron Cheat !
Replies: 10
Views: 504

Re: Elaborate Repton 1 Electron Cheat !

I wrote about it on Twitter not long ago:

The loader (REPTON0) of the Electron version is deliberately littered with undocumented NOPs it seems. It doesn't fool my debugger 😉 Execution starts at &2BDF after an initial sneaky BRKV redirection.


EHPSurcXUAcrpk_.png
by 0xC0DE
Sun Nov 10, 2019 9:17 pm
Forum: hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 894

OSWORD &7F on DFS vs MMFS

I'm trying some test code doing raw sector reads (OSWORD &7F) on my Acorn Electron on DFS (in an emulator, btw) and on MMFS 1.4x (on a real Electron). My first question: I know MMFS is based on DFS but the underlying medium (SD-card) is much faster. Is MMFS artificially kept at the same speed as DFS...
by 0xC0DE
Sun Nov 10, 2019 8:44 pm
Forum: software: classic games
Topic: Elaborate Repton 1 Electron Cheat !
Replies: 10
Views: 504

Re: Elaborate Repton 1 Electron Cheat !

This is excellent work! =D> =D> =D> I love that you fixed the Repton "trail" while scrolling! The cheats work well though I can't figure out what I can move around (option E). It seems you also removed the 'protection' code in the loader that uses undocumented opcodes, correct? Keep up the good work...
by 0xC0DE
Sun Nov 10, 2019 7:44 pm
Forum: hardware
Topic: SD Interface for Plus 1
Replies: 27
Views: 1256

Re: SD Interface for Plus 1

Well said. Couldn't agree more. I got all 3 most recent versions of the ElkSD from ramtop and they are excellent products! =D>
by 0xC0DE
Sat Nov 09, 2019 11:44 am
Forum: introduce yourself
Topic: Hello from Keynsham!
Replies: 13
Views: 411

Re: Hello from Keynsham!

CJS wrote:
Sat Nov 09, 2019 11:22 am
So many things to try and no longer teenager levels of pocket money to keep my aspirations under control. :D
I know the problem well :mrgreen:
by 0xC0DE
Fri Nov 08, 2019 3:04 pm
Forum: hardware
Topic: Sideways ram question
Replies: 4
Views: 216

Re: Sideways ram question

Guess what just arrived this afternoon :mrgreen: =D>
by 0xC0DE
Fri Nov 08, 2019 2:13 pm
Forum: hardware
Topic: Sideways ram question
Replies: 4
Views: 216

Re: Sideways ram question

Steve1234 wrote:
Fri Nov 08, 2019 1:25 pm
I have a Plus 1 and Plus 3 connected to my Electron and have just bought Ramtops excellent Plus 1 SD card interface that has sideways RAM.
Can't wait for mine to arrive! :D
by 0xC0DE
Sun Nov 03, 2019 3:47 pm
Forum: introduce yourself
Topic: Hello There
Replies: 11
Views: 283

Re: Hello There

So, we meet again :mrgreen:
by 0xC0DE
Tue Oct 29, 2019 7:34 am
Forum: software: classic games
Topic: My Top 85 Games for the BBC Micro
Replies: 13
Views: 1049

Re: My Top 85 Games for the BBC Micro

I've watched a few, good job!
Couldn't you find another 15 great games to make a top 100? :D
by 0xC0DE
Sun Oct 27, 2019 10:22 pm
Forum: hardware
Topic: SD Interface for Plus 1
Replies: 27
Views: 1256

Re: SD Interface for Plus 1

Great news!! =D>
I like the extra SWRAM available now.
I'm hoping to buy one from you with a case.
Sending you a DM now.
by 0xC0DE
Mon Oct 21, 2019 8:43 pm
Forum: software: classic games
Topic: Space Adventure on the Elk
Replies: 9
Views: 701

Re: Space Adventure on the Elk

Great work! =D>