Search found 142 matches

by alex_farlie
Mon May 20, 2019 7:48 pm
Forum: software: new games
Topic: Doom?
Replies: 123
Views: 5567

Re: Doom?

Do you reckon it will work with Tom's Beeblink via Chris's TubeSerial adapter? I've booted Elite through that off a Pi Zero. started up really quickly. I know there's no 31 file limit but not sure about capacity. Unfotunately, I've no idea as I've never used one. The filing system needs to be able ...
by alex_farlie
Mon May 20, 2019 7:26 pm
Forum: off-topic
Topic: 16 bit GGC?
Replies: 7
Views: 313

Re: 16 bit GGC?

Yes, supporting OMF would be something of a higher priority I would agree... (https://en.wikipedia.org/wiki/Relocatable_Object_Module_Format), although you might consider if having ia16-elf and ia16-omf as different targets would be reasonable, given that OMF support would be primarlly concerned to...
by alex_farlie
Mon May 20, 2019 1:52 pm
Forum: off-topic
Topic: 16 bit GGC?
Replies: 7
Views: 313

Re: 16 bit GGC?

Cross-compiling the compiler for an ARM Linux host should be a pretty straightforward matter of installing a suitable ARM target compiler (or native compiler if you want to build the compiler on the host system), changing the "--host=" configure option and building the toolchain. If build, host and...
by alex_farlie
Mon May 20, 2019 10:31 am
Forum: off-topic
Topic: 16 bit GGC?
Replies: 7
Views: 313

Re: 16 bit GGC?

This is a project that I have done some hacking on. Yes, it's a cross compiler that needs to run on a modern (Windows or Linux) system. Running GCC on a 16-bit system is impractical as it needs far too much RAM even just for the compiler executable. Some people have requested being able to use DOS ...
by alex_farlie
Sun May 19, 2019 10:41 am
Forum: off-topic
Topic: 16 bit GGC?
Replies: 7
Views: 313

16 bit GGC?

When looking back over something else I found this: https://github.com/tkchia/gcc-ia16 Which is an attempt to develop a version of GCC that is able to generate code for the 16 bit er 8086 and (possibly) 80186 type processors (i.e real mode) This is in off-topic as it's not strictly Acorn related, bu...
by alex_farlie
Tue May 14, 2019 2:54 pm
Forum: software: other
Topic: INPUT Magazine Listing / Electron Error ?
Replies: 37
Views: 573

Re: INPUT Magazine Listing / Electron Error ?

The machine code routine at &D00 is going to print a bunch of user defined characters (tank? frog?) and spaces on the screen. That's all. It's not even that useful to do it in machine code. Oh yeah, and it seems that your machine code routine at &D00 is indeed correct! =D> Btw, when you run the mai...
by alex_farlie
Mon May 13, 2019 8:20 pm
Forum: software: other
Topic: INPUT Magazine Listing / Electron Error ?
Replies: 37
Views: 573

Re: INPUT Magazine Listing / Electron Error ?

0xC0DE wrote:
Mon May 13, 2019 8:10 pm
This is not true. The machine code as typed in from the magazine seems to make sense. No error occurs when I CALL &D00.
Seems I'd made some typos as well, post amended.
by alex_farlie
Mon May 13, 2019 7:34 pm
Forum: software: other
Topic: INPUT Magazine Listing / Electron Error ?
Replies: 37
Views: 573

Re: INPUT Magazine Listing / Electron Error ?

INPUT Magazine was not the best BITD, always full of errs :roll: plus it was more for the beeb, NOT the elk, as no Mode7 try The Micro User ! or in your case, Electron User!! Are you sure the machine code portion is entered correctly? When I keyed it in manually in IDA to see what it was doing , I ...
by alex_farlie
Mon May 13, 2019 4:32 pm
Forum: software & utilities for the pc, mac or unix
Topic: BBC BASIC for SDL 2.0 version 1.03a released
Replies: 12
Views: 347

Re: BBC BASIC for SDL 2.0 version 1.03a released

Thank you once again for your continued efforts with this 8)
by alex_farlie
Thu May 02, 2019 9:15 pm
Forum: other vintage computer hardware, software and games
Topic: Ancient Compaq Laptop
Replies: 2
Views: 334

Ancient Compaq Laptop

Ok Longshot but I am trying to track down a replacement 3.5 inch drive for a Compaq Contura 4/25 LAptop as well as a replacement screen. Probably "impossible" but people here can suggest all sorts of obscure parts :) The floppy drive jammed a while back.. And the screen portion cracked... Also missi...
by alex_farlie
Sun Mar 17, 2019 12:24 am
Forum: other vintage computer hardware, software and games
Topic: The 8-Bit Guy's new 65816 based computer
Replies: 28
Views: 1539

Re: The 8-Bit Guy's new 65816 based computer

How easy would it be (given various peoples expertise in FPGA) to build an accelerated "Positron" which is essentially a 65816 style chip, an I/O chip like the Electron ULA, and so on? Hacking one of these new machines to make an 'Acorn Positron' would be a very nice project. In the meantime there ...
by alex_farlie
Sat Mar 09, 2019 7:08 pm
Forum: general
Topic: Cross Assembley under RISC OS?
Replies: 0
Views: 191

Cross Assembley under RISC OS?

I'd noted this on the RISC OS Open forums:
https://www.riscosopen.org/forum/forums ... 219?page=1

There was apparently come kind of informal proposal to extend the assembler in ARM BASIC to allow for 'modules' to assemble for other architectures :D
by alex_farlie
Sat Mar 09, 2019 2:30 pm
Forum: software: other
Topic: Drawing a circle in BBC BASIC
Replies: 50
Views: 1948

Re: Drawing a circle in BBC BASIC

I'm trying to get back into really simple programming using my BBC B+ and BBC BASIC, just to teach myself what I have forgotten from 30+ years ago... :? To do this, I've written a really simple Hangman program (see attached screenshot, yes I know it's crude but it's early days!!). Can you guess the...
by alex_farlie
Sat Mar 09, 2019 10:24 am
Forum: general
Topic: An oddity from the past..
Replies: 0
Views: 239

An oddity from the past..

Wow! :o https://www.domesday86.com/?page_id=936#Overview Someone has located an old Arthur based prototype , connected with Domesday, and it seems at one point that there was a development version of the VFS control software for Aurthur. I wonder why it was never developed beyond an experimental sta...
by alex_farlie
Thu Mar 07, 2019 11:03 pm
Forum: off-topic
Topic: Acorn Art Thread
Replies: 779
Views: 51641

Re: Acorn Art Thread

Alone "Coming soon to a BBC Micro near you, A different sort of adventure game. Sound out the depths as Dolphin tries to find his way home..." There was in the 1990's a game called "Ecco The Dolphin", would a version of something like it work on the BBC micro as a different sort of arcade adventure...
by alex_farlie
Thu Mar 07, 2019 10:50 pm
Forum: off-topic
Topic: Acorn Art Thread
Replies: 779
Views: 51641

Re: Acorn Art Thread

Teletext Garden Can you do MODE7 Sprites? This inspires me to come up with this fake game blurb: "Nectar Too, is a simplistic game, but its moderately playable. You are a bee searching for Nectar, but watch out because you have to time your descent speed and direction carefully, a miscalculation an...
by alex_farlie
Thu Mar 07, 2019 9:41 pm
Forum: software: other
Topic: Own up who has written code the NSA is interested
Replies: 1
Views: 280

Re: Own up who has written code the NSA is interested

The NSA has released one of their reverse engineering tools Ghidra. This not only disassembles 6502 ( and a number of others cpus) but generates C code. Wikipedia article here - https://en.wikipedia.org/wiki/Ghidra Presumably this has been released to aid cyber security research, although some will...
by alex_farlie
Thu Mar 07, 2019 9:36 pm
Forum: hardware
Topic: Cheaper 2nd processor in preshadow days?
Replies: 17
Views: 770

Re: Cheaper 2nd processor in preshadow days?

For NMOS 6502, if no spare space, to make room you could do a Woz* and make an interpreter for an imaginary 16bit (or as it is Acorn, perhaps 32bit cpu) for non speed critical stuff: i.e. a Sweet32 :) * http://www.6502.org/source/interpreters/sweet16.htm#The_Story_of_Sweet_Sixteen If someone wanted...
by alex_farlie
Wed Mar 06, 2019 11:14 pm
Forum: software & utilities for the pc, mac or unix
Topic: RISCOSe - What happened and does anyone still have CVS?
Replies: 2
Views: 368

Re: RISCOSe - What happened and does anyone still have CVS?

helpful wrote:
Wed Mar 06, 2019 10:57 pm
The RISC OS port to Linux is probably the new version of this and the one to support - https://www.riscosopen.org/forum/forums/3/topics/9068
It looks like RISCOSe was more like WINE, a translation layer for SWI's, without needing the RISC OS rom code as such. :)
by alex_farlie
Wed Mar 06, 2019 10:51 pm
Forum: software & utilities for the pc, mac or unix
Topic: RISCOSe - What happened and does anyone still have CVS?
Replies: 2
Views: 368

RISCOSe - What happened and does anyone still have CVS?

A RISCOS SWI emulation layer for GNU/LINUX type systems? :lol: https://sourceforge.net/p/riscose/code/ and http://riscose.sourceforge.net/ Not updated since 2002, but many many Stardot contributors have done a LOT in the 17 or so years since, in respect of other projects. So given that this was clai...
by alex_farlie
Wed Mar 06, 2019 9:51 pm
Forum: hardware
Topic: RISC OS 3.20 ROM's?
Replies: 128
Views: 9154

Re: RISC OS 3.20 ROM's?

So I guess no big deal -- just the checksum failing, which is probably also what happened in Arculator. On my expansion board the communication system overwrites a couple of bits in the last four words of the ROM too, so that could cause this issue. I'll see if I can minimize this. At least you got...
by alex_farlie
Wed Mar 06, 2019 2:49 pm
Forum: hardware
Topic: Music 5000 FPGA
Replies: 70
Views: 12060

Re: Music 5000 FPGA

I wonder do you think somehow this could be hooked up to something other than a BBC micro......say a raspberry pi or something? Not directly, as the 1MHz bus is 5V TTL. You could design a similar adapter board for the Pi, but replace the level shifters and 1MHz Bus connector with Pi GPIO connector....
by alex_farlie
Mon Mar 04, 2019 4:10 pm
Forum: software
Topic: !Smart graphics application...
Replies: 0
Views: 229

!Smart graphics application...

Wa-ay back in the early 1990's there was a graphics/drawing application called !Smart, that had some concept about componentised drawing creation that looked interesting. Does anyone recall this program and what it did ? I am asking because the idea of 'componentised' vector graphics was something I...
by alex_farlie
Sun Mar 03, 2019 12:45 am
Forum: off-topic
Topic: Sound Export
Replies: 35
Views: 1263

Re: Sound Export

Is there a way for BBC BASIC, having been used to generate Music, to export to some sort of sound file that can be leveraged elsewhere? You don't say what version of BBC BASIC nor what platform. In the case of Windows (for example BBC BASIC for Windows or the Windows edition of BBC BASIC for SDL 2....
by alex_farlie
Sun Mar 03, 2019 12:12 am
Forum: off-topic
Topic: Sound Export
Replies: 35
Views: 1263

Re: Sound Export

There's also *MIDI at MDFS. You can use this to redirect SOUND commands to a MIDI interface if you have one. Interesting work. Now is there a program for BBC BASIC For Windows to play SOUND and ENVELOPES as MIDI output through Windows?? Now that would be an interesting program :D BB4WFORTH also imp...
by alex_farlie
Sat Mar 02, 2019 1:38 am
Forum: off-topic
Topic: Screenwriting software...
Replies: 0
Views: 201

Screenwriting software...

Not that anyone here would have need of it but, I found some Linux based screenwriting software a while back called Trelby https://www.trelby.org/ Trelby follows a US screenplay format though and doesn't (currently) have support for other script formats commonly used in the UK (https://www.bbc.co.uk...
by alex_farlie
Fri Mar 01, 2019 10:12 pm
Forum: off-topic
Topic: Modular CAD for model buildings?
Replies: 6
Views: 326

Re: Modular CAD for model buildings?

Both FreeCAD and Blender have papercraft modules. Do you have a link for the respective add-ons ? :D I've only seen them in passing. Neither of them are my jam, so I haven't dug deeper. I did just find out about DXF2papercraft which seems much more clever than the last link I posted. It's a bit of ...
by alex_farlie
Fri Mar 01, 2019 3:31 pm
Forum: other vintage computer hardware, software and games
Topic: The 8-Bit Guy's new 65816 based computer
Replies: 28
Views: 1539

Re: The 8-Bit Guy's new 65816 based computer

Hmm...

How easy would it be (given various peoples expertise in FPGA) to build an accelerated "Positron" which is essentially a 65816 style chip, an I/O chip like the Electron ULA, and so on?
by alex_farlie
Thu Feb 28, 2019 11:24 pm
Forum: other vintage computer hardware, software and games
Topic: Mega65
Replies: 3
Views: 350

Mega65

An interesting idea...:

http://mega65.org/index.html

Whose porting the Acorn Dialect of BASIC to it? :lol:
by alex_farlie
Thu Feb 28, 2019 10:43 am
Forum: emulators
Topic: So... I Had a crazy idea.....
Replies: 6
Views: 497

Re: So... I Had a crazy idea.....

Not so crazy if you consider that in industry, plenty of complex logic circuits are simulated, by means of modular simulators way before real chips get made. I would be most surprised if there aren't modular simulators whereby you can link up various VHDL modules. I''ll also as a side note here ment...