Spectrum Computing

PROSM

(Can someone make a fake 8K Spectrum ROM for an emulator? Would love to see what you can/can't do on this fictional disaster of a machine I've invented!) https://www.connosoft.com/prosm/otherstuff/8kspectrum.zip I've put up a hacked ROM at this link, which forces the P-RAMT variable to 24575, so th...

PROSM

I agree with Andy, real-time display probably won't be too useful in this scenario, you're best off using breakpoints. I suppose you could step through the IN instruction and then change the contents of the register, but that's very fiddly. Alternatively, you could record an RZX of you pressing a fe...

PROSM

Just checked it; the loading screen bars only appear if you're using the ZX Prosilver theme - the default Prosilver theme just has the bog standard spinning circle.

(Another like for you Juan

)

PROSM

SkoolKid wrote: ↑Thu Jun 22, 2023 11:10 pm Is it a port of Old Forty-Niner for the ZX81, perhaps?

The first line of the BASIC listing is:

Code: Select all

1 REM Modified ZX81 GLN 8/83

That, and the fact that the listing seems to follow the same structure as the ZX81 program, would seem to indicate that it's a port.

PROSM

If you want Pasmo to generate the RANDOMIZE USR line, you have to follow END with the address of your program's entry point, like so:

Code: Select all

ORG 32000
ld hl,16384
ld (hl),255
inc h
ld (hl),255
inc h
ld (hl),255
inc h
ld (hl),255
END 32000

PROSM

Not sure why it doesn't show up on the Zeppelin Games page, but it is on the website, under its original title, 3D Tank Duel.

PROSM

The only one I can recall right now is The Official Father Christmas Game, which was released in aid of the Save the Children fund.

PROSM

Great that you managed to fix it up! Bugs arising from concurrency are some of the trickiest ones to identify.

PROSM

I haven't looked at the code for Stop The Express, but how easy it is to hack depends on how the game stores and processes the attribute data. If it's just using it for displaying the objects, then it shouldn't be too hard to hack, but if it's using the on-screen attributes for collision detection, ...

PROSM

Juan F. Ramirez wrote: ↑Thu May 04, 2023 9:19 pm Jet Set Willy

Freddie Laker's Airline Capers

PROSM

If AY speech can use the full 4 bits, that would be pretty decent quality (even cassettes and LPs are only around 5 bit). However, I'm not hearing this level of quality with AY, they still sound quite noisy to me. For example, the AY "180!" doesn't sound any clearer than the Beeper "...

PROSM

I guess it should be theoretically possible to produce a 48K "fix" that moves the player routine into uncontended memory. Then we may, at last, be able to agree on what it does say. :lol: Or you could run it on an emulator that lets you disable contention, like Spin. I had a go and the so...

PROSM

On a technical note, do I need to push ALL the registers before CALL 949? I'm sure I've seen a listing somewhere that pushed HL, BC and DE but didn't bother with AF, IX or IY, and it still worked. Or, given that this is likely to be a standalone routine, could I get away with just HL (that holds th...

PROSM

I can't see a reason for it. From a technical perspective, you would still need the DRAM control circuitry regardless of whether you had 32K or 16K of upper RAM (granted it's only 4 generic 74LS chips, but it's still an expense). Plus, it would mean that you would have to supply some wire links or j...

PROSM

...and, maybe, some other true connoisseurs of Crap™. I've just been contacted out of the blue - and via comp.sys.sinclair of all places - by Rich Pelley, who's writing for the Grauniad these days and is - in his words - looking to "do a deep dive on Crap Games, from the Cascade 50 tape throug...

PROSM

No need for further investigation, I've found the root of the problem. I checked the webpage for the routine at $702C, as it occurred to me that it also contained embedded strings; strangely enough the HTML for that routine had been generated without issue. Looking back at my skool file, it turned o...

PROSM

Nothing jumps out as being amiss in your skool file or control file, so I'm not sure what's wrong. What game are you disassembling? I'll run a snapshot of it through sna2skool.py with your control file snippet and see if I can figure out what's going on. I'm working on Computer Scrabble (Psion, 198...

PROSM

I'm using SkoolKit 8.8 with Python 3.10 on Windows 10. The code I'm disassembling uses a routine which prints the string following the CALL instruction. This means that the string ends up splitting the code in two. Here's what the relevant sections look like in the skool and control files: [...] $6E...

PROSM

The author of this tool posted a thread regarding it a few years ago, which may be useful for those who want more information: viewtopic.php?t=2155

PROSM

Dandu wrote: ↑Wed Nov 02, 2022 6:30 pm From the DVD.

I have extracted the vidéo and the WAV from the DVD.

Brilliant - fewer compression artefacts should give this a higher chance of working properly

EDIT: Just spotted you had a link to a WAV in the original post... I really should read things more thoroughly

PROSM

Dandu wrote: ↑Wed Nov 02, 2022 6:05 pm Hi. I have edited the audio file and removed the jingle.

http://down.dandu.be/ep00b.wav

I know it's very short, the video is the entire sample on the DVD.

Nice

Is this a rip from the original DVD or from the copy on YouTube?

PROSM

If anyone has most of the existing Spectrum software collection on their hard drive, would it be possible to look for this block on code on that hard drive? Someone a few months ago said it would be easy to do if we were looking for part of a loading screen. That would probably be the easiest and m...

PROSM

Nice to see a re-imagining of an 80s' game by the original author! I do slightly prefer the "Rehab" version - the game-play is slower and more considered than the tough-as-nails frantic action of the 1986 edition. That being said, I like the presentation of both, especially the music!

PROSM

Using this website, text adventure Geordie Land , sold by mail order in the free ads pages of April 1989's Your Sinclair, could be said to be the last 16K Spectrum game made in the Speccy's commercial life. Not quite - that was found not to be the case in a thread from the start of this year: The s...

PROSM

TMD2003 wrote: ↑Sun Oct 16, 2022 8:43 pm Also, someone needs to poke @PROSM to post on this thread, even though it might cause a few heart attacks.

Statins at the ready, please...

20 years of age. That ought to knock the average down a bit

Spectrum Computing

Search found 476 matches

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