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+2 crashes upon pressing some keysYears ago I purchased off ebay a mint condition, Dixons special offer boxed UK-made issue 1 +2. I did not use it so much until recently however, focu…
... programs for the ULA and RAM, first [url="http://www.users ... .co.uk/~jg27paw4/pourri/ramtest2.asm"]this one[/url], then [url ... -
sam coupe with external 1mb ramvelesofts site has snaper disks: https://velesoft.speccy.cz/sam_zx128.htm when you use masterdos to detect the external 1mb of ram interface th…
... detect the external 1mb of ram interface then the snaper emulator ... lets you select the fast ram and the zx spectrum game ... uses this ram above 32768 this gives you ... -
Fixing a poorly Issue 3 - Odd faults.Here's one for you Spectrum fixers, I warn you it's a long one. I've spent a couple hours this evening doing several repairs on a rubber keyed Speccy…
... 2 previously replaced lower ram IC's as suspected ... fitted 2 new lower ram IC's(NEC D416C- ... working, and the lower ram test reported IC13 as suspected ... the ceramic disc capacitors around the upper/lower ram IC's ... where the previous lower ram IC's were replaced, ... -
Sinclair 16k Ram pAck Issue3 schematicsHi guys, I am willing to repair a 16k ram pack for the ZX81 but I cannot find any schematic of the ISSUE 3 ram pack. I could only find a schematic…
... willing to repair a 16k ram pack for the ZX81 but ... schematic of the ISSUE 3 ram pack. I could only find ... and replace them with 8118 ram which requires only +5V. Problem ... desoldering one of the 4116 ram, I lifted the tiny little ... -
48K Issue 2 RAM issuesI have 48K issue 2 board (I've checked, the upper memory is present!). It's not very well. I've not attempted to diagnose one before, so please bear …
... are only in the upper RAM as it will actually boot ... -
The Complete List Of The Causes Of Lower Ram Failure?Well the aim is to get a comprehensive list.I ask this because I know very little about it . I know that failure of "power supply" related capacitors…
Well the aim is to get a comprehensive list.I ask this because I know very little about it . I know that failure of "power supply" related capacitors can do this . But I suspect there are loads of other ways to damage lower RAM ICs? Any ideas? -
How to write a simple C+asm horizontal scrolling game (Tutorial, z88dk)[b]How to write a simple C/asm horizontal scrolling game[/b] [b]Note:[/b] This tutorial has multiple parts... I am still writing but this first pa…
... write a simple C/asm horizontal scrolling game[/b ... up a good C/asm development environment can take ... __FASTCALL__ scroll_left()
{
#asm
db 6,191,33 ... {
scroll_left();
#asm
halt
#endasm
What are editor scratchpads?I've been reading and experimenting with 128 bank switching and using the shadow screen. The technical reference [url="https://worldofspectrum.or…
... .htm"]here[/url] states that "RAM banks 1,3,4,6 ... are used for the silicon disc; the rest of 7 contains ... tell me what the silicon disc and editor scratchpads are and ...upper ram tacks / TR4 socket...[url="https://photos.app.goo.gl/MkqzRCuNCV3EPr9E7"]https://photos.app.goo.gl/MkqzRCuNCV3EPr9E7[/url] you can only replace that pesky TR4 so many t…
... would just fry the lower ram again .. this is one board ... like somebody attacked the upper ram with a black and decker ... sugestions for replacing the upper ram tracks ?zx spectrum display corruption .. with lower ram module installed[img]https://photos.app.goo.gl/Gu6rjC5v21sZxwTX9[/img] [img]https://photos.app.goo.gl/FznVw8SkbbhWn5mh7[/img] another specie question : i have …
... video corruption, it has lower ram module fitted.. can get it ... it shows lower ram as good and upper ram not detected although ... start digging at the upper ram, or the 4 logic chips ... that drive the upper ram.. i am presuming that one ...How to write a simple game in C+asm.This is just a link to an old post in Development, about a post of making a simple game in C for the Spectrum. It was suggested that this thread shou…
... -to-write-a-simple-c-asm-horizontal-scrolling-game-tutorial-z88dk ...Paging for 64Kb of Video Ram??? What is the best way to page this?Hi all, I'm just putting together a concept card for a "Loki" style of video card, which supports shadow ( so it fits a normal Speccy ) and also t…
... single 48K video page with RAM relocated to the ROM space ...Built a ZX Spectrum that works, but can't get the upper RAM to work?Like the title says I finished my Spectrum 3B board, and it boots, but it doesn't see the upper 32k of RAM. When it boots, the lower 16k works f…
... see the upper 32k of RAM.
When it boots ... programs and even run a RAM diagnostic. Basically, tells me that ... all the associated logic, and RAM chips, with no effect. I ... direct connections between the upper RAM and associated logic, and I ...Max RAM for ZX Spectrum gamesHow much RAM can be used for single level/whole game? On tape writing.
How much RAM can be used for single level/whole game?
On tape writing.what add-ons did.............what add-ons did people buy in the 80's for their zx spectrums? :)
- Kempston interface for a joystick
- ZX Lprint III interface for a Seikosha printer
- Ram Turbo interface for joysticks
- Disciple interface for a disc driveMy own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... CPU running at 6mhz, 128k Ram and will run all Spectrum ... using a new Bios, extra ram, the CPU clocked to ... to maximum
>128k RAM
>2 Drive ... system when compiled to z80 asm. He doesn't code z80 ... asm, and hence could not write ...Basic and AY musicis it possible to play an ay-music in background while a basic program is running?
... suspected you wouldn't know ASM.
Also RST 38 ... /> ; Place table at end of RAM (FF00 - FFFF), fill with FE ... at the top of the RAM (there is some trick with ... at the top of the RAM place your AY routine to ... to the end of the RAM.
I know ...Fake screenshots? No - now it's REAL screenshotsOk then. A few weeks ago I said I will show You the new gfx-mode of Speccy and - here it is: [url="http://republika.pl/hooy_prg/hprg.zip"]http://rep…
... just 8.0), 384 Mb Ram are fine too, I tested ... a machine with 192 Mb Ram, and it works. The most ... realised that some people will asm me to do a converter ...Fake screenshots? No - now it's REAL screenshotsOk then. A few weeks ago I said I will show You the new gfx-mode of Speccy and - here it is: [url="http://republika.pl/hooy_prg/hprg.zip"]http://rep…
... just 8.0), 384 Mb Ram are fine too, I tested ... a machine with 192 Mb Ram, and it works. The most ... realised that some people will asm me to do a converter ...World of ZX81?Considering there is a lot of interest in the ZX81 (as well as some resources) on this site, how feasible would it be to include a WORLD OF ZX81 sect…
... Flare Technology (who made the RAM Music Machine, amongst other things ... , people who could teach z80 asm were none excpt one guy ...Fire Ruby - More HelpI cant pass the spikes in the fire ruby by lawrence creighton, can someone please help? [ This Message was edited by: welsh_brawler on 2003-08-08 21…
... 51
HAMM 52
RAM 53
EMPT 54
BLOW 124
DISC 125
STRI 126
RAM SAVE RL...RAM LOAD{6}{6}{6 ...Compilersaside from SE Basic Compilers, what are some other good ones? Personally im afetr HISOFT Compiler for 128k, but if theres any others it would be nice…
... , emulator, thatll give you more Ram , like the Russian clones 256 ... basic well to code in asm, or know it at all ... with being good at z80 asm a decent knowledge of basic ...Game Editor questionI'm currently updating my image utility - TommyGun and my old Map editor, which I haven't released on WoS yet. My question is this. Would people li…
... a handy package of useful asm subroutines.
... be assembled with "z80asm file1.asm file2.asm"
RAM data. With these items ... to ROM from the RAM data which should not ... and will lie in RAM at some other address ...MB02 Help!!just got my MB02, is there a way to convert tzx files, etc to MB02 disks?? thanks!
im kind of sorted, could you help me please with some example commands for copying a file from disc say file 33 to the ram drive, drive 9. im a bit stuck :(MB02 Help!!just got my MB02, is there a way to convert tzx files, etc to MB02 disks?? thanks!
... a file from disc say file 33 to the ram drive, drive ...
