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Z80 Machine Code Question...Hi Folks, I know not strictly a BASIC question but I have started to learn Z80 machine code - 25 years too late! :smile: I have been reading a book…
... JR NZ instruction. My little test program is intended to paint the ... -
Spectrum hangs upWhat might be problem when my ZX Spectrum 48K (rubber keys) hangs up after few minutes play? It had memory problems but i changed (or an expert did i…
... few minutes play? It had memory problems but i changed (or ... expert did it;)) the upper memory chips.
There is no ... up after game load) and memory test programs says that everything is ... -
FRAMES counter...Hi Folks, I wrote a test program that uses FRAMES to generate a clock. When I tested this within BASin it worked well and kept near perfect time. …
... ,
I wrote a test program that uses FRAMES to generate ... that code in my main program the FRAMES counter seems to ... ?
For example, does program size make a difference? What ... -
128K+2A/+3 RAM layoutDoes anybody know how physical RAM is mapped to ZX 128k+2a/+3 address space ? There are four 64Kx4 chips IC4-IC7. IC4-IC5 seems to be contended (vide…
... am also looking for RAM test program, can be on ROM chips ... -
z88dk SP1 - any internal oddities?I'm just wondering if anyone knows if the Z88DK's spritelib SP1 has any oddities inside, for instance relying on specific timings, undocumented instr…
... , is there an undocumented instruction test program floating around? I've seen ... ! and I've run this test on the Mostek chip and ... -
Is this TZX OK?I'm in the middle of preserving a bunch of Danish MIAs and STPs. I'm slowly getting up to speed with MakeTZX. One tape is giving me some trouble. You…
... -4100 Hz, order 2
Block 1 => Program: TUMLER - Header ... : Length= 17, Pause=971ms.
Block 2 => ... -
Upper RAM replacement module issues with the DivideI got my new upper ram replacement module from Zorn yesterday and seem to be having some issues. When the machine is without the Divide it boots up …
... boot, the ram passes the memory test i perform with the TESTPROG ... -
Spectrum +3e acting up...Hello, Well, my Spectrum +3e is starting to act up. All 48k games load fine but now no 128k games will load :/ In one 128k game, in the beginning r…
... ROMs, I have some new memory set aside and tried those ... />
Is there a memory test or ULA test, etc... for the +3 ... -
populated Harlequin Rev.D -> Rev.FHi, I like to sell my Harlequin Rev. D board. I modified it to be identical to Rev. F: * switching regulator instead of linear regulator for DC in …
... , a 48k Spectrum and a test program, selectable with a small switch ... -
Interfaces & ROMsHi everyone, I'm currently looking into the various modern interfaces for the Spectrum to allow me to run all my games from an SD card. I have a few…
... different ROMs, for example to test the Spectrum.
[LIST]
[*]OFFICAL TEST PROGRAMS
[*]SPECTRUM 128 RAM ... br />
The official test program is available as tzx - again ...
Also found a nice test ROM here: [url]http://www ... -
Microdrive repair - GREAT NEWS!Microdrive repair facts: We know (almost) pure alcohol and cotton swabs are needed a lot to clean the Microdrive head. We know cartridges degrade, so…
... /Microdrive_repair_batch_1.JPG[/IMG]
Test setup (this is the tidy ... /Microdrive_repair_batch_2.JPG[/IMG]
Test program:
[IMG]http://benophetinternet.nl ... -
ZX81 SP ROM Disassembly<div>Hi All,</div><div><br></div><div>For anyone who is interested in ZX81 Assembler and ASZMIC ROM...</div><div><br></div><div>I have created a disa…
... .
and an example BASIC program running in ZEsarUX Emulator is ... -
Arcade Game Designer for ZX Spectrum Next/Timex 8x1For those of you who are not members of the Spectrum Next or AGD Facebook groups, I've released a new editorless AGD compiler. While it has been des…
... -line tool which takes a program written in AGD "BASIC" and ... the engine, a simple test program, a skeleton program and some example coding ... -
Multiple Simultaneous Keypresses and PC KeyboardsAn issue was brought to my attention that a short test program that detects whether the QAOP,space keys are pressed was not behaving as expected. …
... my attention that a short test program that detects whether the QAOP ... pressed.
I have a test tap here: https://drive.google ... to test on a real machine to see if this program does ... -
i cant get passed the < > keys on the keyboard test programok, got it working. but i cant seem to get passed the < > keys. it doesnt work when i press symbol shift and r t.
ok, got it working. but i cant seem to get passed the < > keys. it doesnt work when i press symbol shift and r t. -
Empty zips ?Maybe. There was another 'tester' but I've lost my place with that, anyway: https://worldofspectrum.org/archive/software/utilities/test-program…
... ://worldofspectrum.org/archive/software/utilities/test-program-sinclair-research-ltd
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... /> ldir
im 2
ei
--your program--
program running.
I used ...Whats wrong with my spectrum 48 kWhen i startup, instead of copyright messsage i get gray screen with black square in middle.
But if it is the RAM then it must be the range 16384 to 32768 (?) for it doesn't start and gives wrong values on screen. If it were higher adresses then the Spectrum would start, but will not use all memory due to the memory test.did anybody program games for their spectrum?did anybody make games for their spectrum and have you still got them in tap/z80 format. i once attempted to make a side scrolling game but it didn…
... , Arjun wrote:
Yep, did program quite a few. Let me ... written in Basic.
2) A Bingo like game, with ... ONELINER.
ad 2) See BASIC program added.
[code]
games written using game writng programsI was reading through some issues of crash not long back and one article was about some 16 year old that wrote Frank n stein for the speccy(never pla…
... squeeze into the remaining memory.
This program will allow anyone ... any games produced using the program.
I have about ... bytes remaining for the designer program itself, so if anyone has ...helpHi, I am new to this forum. I have purchased a Speccy from ebay but I am having trouble getting any games to load. I dont really have much technical…
Mikie,
Where can I find the test program?
And will it work on a 128k+?
thanksSpectrum problemHi I've just been trying to resurrect my 48k spectrum. I'm having some problems loading some of my games, but if it does completely load, it crashe…
... tried the PRINT PEEK 65535 memory test and got a 0 back ...Spectrum problemHi I've just been trying to resurrect my 48k spectrum. I'm having some problems loading some of my games, but if it does completely load, it crashe…
... />
I tried the memory check program last night, but I didn ...Anyone familiar with ZEXALLZEXALL is a Z80 exerciser, and there's a build for the Spectrum. But oddly, it doesn't actually work on any of the emulators that I've tried. Exactly…
An excellent test program. Spectaculator gets off to a good start but most emulators fail all the same tests.Is spectaculator emulating the +2 correctly?i remembera few games that would crash when running in 128K mode, due to a bug in the hardware of the grey +2, hence it being replaced with the +2a. …
Is spectaculator emulating the +2 correctly?i remembera few games that would crash when running in 128K mode, due to a bug in the hardware of the grey +2, hence it being replaced with the +2a. …
... snow on my test program :(
[/quote]
My test program for the ...Beta versions of Fuse 0.6.2 and libspectrum 0.2.1 availableDear all, The Fuse team is pleased to announce the release of a beta version of the upcoming 0.6.2 release of Fuse and the Fuse utilities, as well a…
... - if anyone has a handy test program I can run on my ... TC2048 to test this I'd be grateful ...How to tell if I have a Spectrum ZX 16K or 48K?Hi all, I'm a total newbie to the good old Spectrum and I got three spectrums in one box together with som other old computers. The spectrums seem…
>There was some small program to test it, >but I really ... was it.
The program is "Test Program" available in the Utilities section ...What Speccy software uses Kempston Mouse?I wanted to implement this feature in my emulator but did not find any Spectrum software to test it. I heard earlier that the Art Studio use it, but …
I also wrote a test program for a piece Kempston mouse ...
