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'rain' error on British Spectrums?Hi guyz. Is there any scheme of 'umbrella' modification for British Spectrums? I mean the mod to avoid 'raining' effect, visible on this video: […
... basic :
POKE 40000,62
POKE 40001,64
POKE 40002,237
POKE ... 40003,71
POKE 40004 ... -
Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... (not very efficient in BASIC) and the program is not optimized since ... -
Address of monitor to load emulator files into real SpeccyI have a monitor/debugger that can load data over serial port really fast. Now I would like to extend it to load standard emulator files over the ser…
... ...) has onboard ROM / RAM to hold the monitor program and any temporary ... -
ANN: Spud v0.210Ok guys, I've made you wait long enough. Here's a new version of Spud for you to love, hate, ridicule or ignore. [URL]http://bit.ly/iAhkXY[/URL] …
... a simple BASIC non-autostart program), do a LOAD "", the program will load ... -
ANN: Spud v0.210Ok guys, I've made you wait long enough. Here's a new version of Spud for you to love, hate, ridicule or ignore. [URL]http://bit.ly/iAhkXY[/URL] …
... a simple BASIC non-autostart program), do a LOAD "", the program will load ... -
Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…
... across both the 8 lower RAM chips and the 8 upper ... it, thereby doing a rudimentary ram test. I assembled it to a ... me to believe that upper ram is definitely suspect. Unfortunately I ... same address for a bad test or whether it gives random ... -
Spectrum Covertape Wars[URL="http://jdanddiet.blogspot.com/2011/11/spectrum-covertape-war-part-1-road-race.html"]Click here for Part 1: The Road Race Begins [/URL] Part 2 …
... Froggy, written using a BASIC programming enhancement program, Action Pack 5 (it ... -
Pac-Man EmulatorMy Pac-Man Emulator for the Spectrum +2A/+3 is now available for download from: [url]http://simonowen.com/spectrum/pacemuzx/[/url] You'll need to su…
... /> Interrupts are disabled during the RAM test, so my interrupt handler doesn ... I decided to skip the test in the Speccy version, as ... -
Best type-in game?Was wondering what people thought the best type-in game was for the Spectrum. There were a few half-decent ones if I remember rightly... I never h…
... for helping me learn BASIC. If a program didn't work I ... out which part of the program was likely to be at ... -
Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…
... loading Chaos is a good test as the display corruption always ... a few bits in lower RAM are being unreliable.
RAM test software for the Spectrum? It ... someone has a ROM based test, but that isn't too ... -
Ship of the line[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0006971[/url] Nothing important really, had not noticed it before today. A look at the basic …
It's a simple protection device, you can't access the BASIC once the program is running. -
A virtual machine in WindowsHas anyone any experience of a virtual machine in Windows? I'm thinking of trying this, mainly "just because", but also slightly because any Windows …
... 's a great way to test a Linux OS, it's ... machine I can test a Linux program and then test the equivalent Windows ... program without having to reboot ... -
Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …
... single DEC (HL) for the RAM test. Even leaving both DEC (HL ... , which is the last valid RAM location. -
My divide killed my toastracknow it boots with garbage and z80 overheats a lot will replacing z80 solve it , or something else can be bad?
... ok. It will read the RAM and display it. If the ... a good bet that the RAM is OK too as it ... be refreshing the RAM. But given that the program in the ROM ... -
My divide killed my toastracknow it boots with garbage and z80 overheats a lot will replacing z80 solve it , or something else can be bad?
... ok. It will read the RAM and display it. If the ... a good bet that the RAM is OK too as it ... be refreshing the RAM. But given that the program in the ROM ... -
Problems with my +3Hello everybody :) I, after almost 2 years, am back in spain and I was able to plug my +3 and play. The thing was going quite good until I inserted …
I'd test the drive by formatting, saving and loading from new diskette. (perhaps the head became misaligned)
and run some simple RAM test.
also there is that ROM test (forgot how to enter it), it checks the drive too. -
Beginner questionThis might sound and be daft.... I've just been reading J Cauldwell's "how to write a Spectrum game" but was thinking of writing something in C as I…
... 't need inline assembler to POKE/PEEK memory (if you need this ... -
Problems with my +3Hello everybody :) I, after almost 2 years, am back in spain and I was able to plug my +3 and play. The thing was going quite good until I inserted …
[QUOTE=orange;630009]I'd test the drive by formatting, saving ... )
and run some simple RAM test.
also there is that ... ROM test (forgot how to enter it ... do one of those RAM or ROM test in the +3?
My Pc doesn't work in my office...it's a strange, thing, he works perfectly at home, and other places, but for 2 weeks now, every time I try to use it in the office (the place i need …
... , but I do agree the ram test should run for a while ...ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... can't do it from BASIC in USR 0 mode because ... BASIC is in ROM3, and you ... you've paged out BASIC and your program will crash, so you ... three ROMs that isn't BASIC will cross one of the ...Spectrum 48K help neededI hav got an old Specrtum 48K issue 3. When I plug-in power connector it doesn't show the home screen (c) Sinclair.... From about 50 times trying to …
... way tho check lower RAM chips or to disconnect ... upper RAM.[/QUOTE]
The upper RAM chips are ... .
Lower RAM checking is a matter of ... use an add-on test card with RAM test & LEDs to ... few people have such a test card (I myself don ...Spectrum 48K help neededI hav got an old Specrtum 48K issue 3. When I plug-in power connector it doesn't show the home screen (c) Sinclair.... From about 50 times trying to …
[QUOTE=RetroTechie;636321]Lower RAM checking is a matter of ... use an add-on test card with RAM test & LEDs to indicate ... RAM is detected as bad by the ROM's initial memory test ...ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... Basic variables and expressions, as external command is executed from divide ram ... , zx basic is not accessible.[/quote ...How to change the colour of an input line?Hello my fellow WoS'ers I remember the way-back machine on the humble 48k where I could write a REM statement in basic, but I could also change the …
... /> [*]Restart the computer in 48K BASIC.
[*]Type the REM statements ... the computer in 128K BASIC.
[*]Load your program.
[*]Use [B ... , replacing these lines in your program.
[/LIST]80x24 mode (Timex required)Hopefully Martijn will be adding this to the archive soon, but until then grab it here: [url]https://dl.dropbox.com/u/15659782/BASIC80.zip[/url] Th…
... a 32K version of SE Basic which will use the shadow ... mode to give you more RAM for BASIC in 80x24 mode.Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
... one or more faulty upper RAM ICs. Is P-RAMT always ... used in generating the upper RAM control signals and a fault ... the CPU and the upper RAM address and control lines with ... during the ROM code's RAM test and this will reveal what ...Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
... /> It tells us that the RAM test routine in the ROM consistently ...Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
... a 16k machine. Paul Farrows RAM test is still reporting bad address ...WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
[SIZE="4"][B]TEST #1[/B][/SIZE]
... moment, as I want to test basic functionality (JTAG and configuration PROM ... 've written for this first test.
[img]http://www.zxprojects ... .jpg[/img]
Next test is to build a simple ...Diagnosing a strange software fault in a 48kHi, A friend gave me a 48k, which I am very keen to restore. The spectrum 48k was my first computer over 20 years ago and I owe my ability to code t…
... isn't detected by the RAM test routine that is executed at ... 's probably in the upper RAM, but this is not a ... of some external device to test the RAM in-place, I'd ... removing one of the upper RAM ICs; this should make the ...
