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Diagnostic Board (Winston designed) PCB'sHi everyone, I had these made earlier in the year, built mine then promptly mislaid the others until now :) and I'd like to offer these to the commu…
... /> I use "The Gosh Wonderful ZX Spectrum ROM - Version 1.32" as second ... rom in this machine :)
I ... -
DivMMC EnJOY! sale! From only ?36.99[COLOR="Blue"][SIZE="3"]Until the end of the year the DivMMC EnJOY! will be on sale. Now available from only ?36.99! Click on the links underneath t…
... take over the routines in ZX Spectrum ROM for loading from real tape ... -
DivMMC EnJOY! sale! From only ?36.99[COLOR="Blue"][SIZE="3"]Until the end of the year the DivMMC EnJOY! will be on sale. Now available from only ?36.99! Click on the links underneath t…
... take over the routines in ZX Spectrum ROM for loading from real tape ... -
Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
[QUOTE=Jerri;817782][QUOTE=Einar Saukas;817774]I just run a simple empirical test (plotting randomly on screen) to compare the random generator algorithms mentioned here:
[CODE]10 FOR f=0 TO 20000
20 LET y=USR 32768: IF y -
Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
... that function RND from original ZX-Spectrum ROM produces bad results, similar to ... -
Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
... that function RND from original ZX-Spectrum ROM produces bad results, similar to ... -
Divide with CF Adapter on TS 2068 and Gray +2Okay, full disclosure: The divide used to work on both my TS 2068 (with twister board) and Spectrum Gray +2. Then for some reason, it stopped worki…
... cannot run on TS-2068 ROM or Spectrum ROM that plug into Cartridge ... has to run directly to ZX Spectrum ROM.
If you know ... original ZX Spectrum ROM you can try to replace TS-2068 ROM with ZX Spectrum ROM, it ... -
Divide with CF Adapter on TS 2068 and Gray +2Okay, full disclosure: The divide used to work on both my TS 2068 (with twister board) and Spectrum Gray +2. Then for some reason, it stopped worki…
... cannot run on TS-2068 ROM or Spectrum ROM that plug into Cartridge ... has to run directly to ZX Spectrum ROM.
If you know ... original ZX Spectrum ROM you can try to replace TS-2068 ROM with ZX Spectrum ROM, it ... -
Rare Replay - ZX spectrum emulator.Rare Replay is released on the XBOX One! Amongst the 30 games, it contains seven ZX Spectrum titles: Jetpac Lunar Jetman Atic Atac Sabre Wulf…
... ", my emulator never used the ZX Spectrum ROM....
> On a ... -
External Z80 CPUHi Looking for some advice if possible. Many years ago I had a plug-in board for a Spectrum 48k which had a couple of switches, a z80 CPU, and a S…
... www.zxdesign.info/book/"]The ZX Spectrum ULA[/url] Book is recommended ... fatal failure inside a faulty Spectrum.
I suggest ... flash) chip. Program the normal ZX Spectrum ROM in one half followed by ... a test ROM in the other half. ... -
128K Toast Rack / +2 Grey Bug Fixed english ROM ?Just spotted this on ebay before ending: http://www.ebay.com/itm/1x-Sinclair-ZX-Spectrum-128K-Toast-Rack-2-Grey-Bug-Fixed-english-ROM-/26206065205…
... machines, the most compatible "ROM" for a 128k machine will ... changes compared to the original ZX Spectrum ROM (as Balford described above).< ... :-)
Can a "ROM" for a 128k toastrack or ... PCB, both sockets should have ROM chips in.
... -
128K Toast Rack / +2 Grey Bug Fixed english ROM ?Just spotted this on ebay before ending: http://www.ebay.com/itm/1x-Sinclair-ZX-Spectrum-128K-Toast-Rack-2-Grey-Bug-Fixed-english-ROM-/26206065205…
... 48k machines, the most compatible "ROM" for a 128k machine will ... changes compared to the original ZX Spectrum ROM (as Balford described above).
ROM 0 or ROM 1 in order increase ... -
NTSC Compatibility?Correct me if I'm wrong, but wasn't the Timex 2068 the only NTSC clone built of the ZX Spectrum? And I use clone lightly... From what I underst…
... emulator cart is basically a ZX spectrum rom on a board, when ... board rom of the TS2068 turning it into a ZX spectrum (kind ... twister board WITH the zx spectrum emulator rom built in..and for ... -TS2068-New-Version-with-ZX-Spectrum-Emulator-on-Board-/121794234115? ... -
Dead issue 3b with black and white barsHi all, I've been donated an issue 3b which has some nice black and white bars with a few flashing blocks. I've done a few RAM tests and could spo…
From the symptoms, I think it's highly likely the CPU is faulty, though I couldn't rule out a RAM (upper or lower) fault. It's very rare for the ZX Spectrum ROM to fail. While you're at it, also check the -5 and 12 V power supply rails at the lower RAM. -
what is this ?Hi all, I miss on ebay last days two of this strange things (different versions)? what is this and who made them .. ? google is not my friend in th…
... ://www.tindie.com/products/Semachthemonkey/zx-spectrom/"]https://tindie.com/products ... /Semachthemonkey/zx-spectrom/[/url]
I ... game, possibly including a patched ZX Spectrum ROM. And a small (8 pin ... -
Character Based SpritesHi, I'm working through Jonathan's excellent guide to writing games, and have mastered the animation of single UDGs. Before or move onto Pixel…
... I see this is very ZX Spectrum ROM oriented, which is fine for ... .
For a Spectrum, and for performance reasons in ... what the original ROM provides.
Since Spectrum is such a ... basically it for a 48K Spectrum.
For 128K ... -
Character Based SpritesHi, I'm working through Jonathan's excellent guide to writing games, and have mastered the animation of single UDGs. Before or move onto Pixel…
... I see this is very ZX Spectrum ROM oriented, which is fine for ... />
It starts with the ROM as it's a good ... -
Character Based SpritesHi, I'm working through Jonathan's excellent guide to writing games, and have mastered the animation of single UDGs. Before or move onto Pixel…
... I see this is very ZX Spectrum ROM oriented, which is fine for ... />
It starts with the ROM as it's a good ... don't know most of ROM functions, so it's a ... -
What should your speccy have come with ?:) I was thinking about this earlier. What changes should of been made to the Speccy when you purchased yours ? Realistically this topic really…
... ZX Microdrive, ZX Interface I/Interface II, QL, 16K Spectrum ... plan after the original ZX Spectrum would have been the ... ZX Spectrum ROM written by Steve Vickers. Programs written for the ZX Spectrum ... increases performance for the spectrum with most operations ... -
ROM emulation in softwareHi, first of all -- I only have shallow / uni knowledge of hardware, electronics, and physics. So forgive me for asking things that are out of that …
... theoretically possible to somehow wire ZX Spectrum ROM slot to some fast PC ... the PC feed read the ZX Spectrum ROM address and feed it data ... with the z80 on the spectrum next. The pi0 will be ... -
ROM emulation in softwareHi, first of all -- I only have shallow / uni knowledge of hardware, electronics, and physics. So forgive me for asking things that are out of that …
... theoretically possible to somehow wire ZX Spectrum ROM slot to some fast PC ... the PC feed read the ZX Spectrum ROM address and feed it data ... -
What clone for the USA?Living in America, so fellow ex-pats might be able to answer this. Yes, I know I can do a search but why not ask first as knowledge beats enquiries. …
... the ZX Spectrum ROM. Or buy an actual ZX Spectrum.
For ZX Spectrum 48k ... through to and including the ZX Spectrum+2 (the dark grey ... asking someone to modify a ZX Spectrum (48k/+) or get a ... the output of the ZX Spectrum becomes a window on their ... -
Timex Sinclair 2068 Twister Board by SuperfoJust a minor test. https://youtu.be/5mOCGyDPk4k Superfo made a Timex Sinclair TS2068 "Twister Board" with a socket for ZX Spectrum ROM on-board…
... />
BTW what version of ROM have you burned into your ... some startup issues with the ZX Spectrum ROM. So, it is recommended to ... use the TC2048 ROM with modified a boot up ... -
Any reason to prefer the 48k version of a game over 128k?Title says all... are there any games for which it makes sense to play the 48k version if there is also a 128k version? To my understanding, the 128k…
... and ZX Spectrum. It was coded for maximum functions in the least ROM ... space. The ZX Spectrum BASIC being slower than ... is spare space in the ZX Spectrum ROM, this resulted due to the ... to work with another ROM, the extra ROM code has to ... -
Z80, and 6502, in comparisonI was wondering about how each of these compared in terms of performance. The Commodore 64 had a 6502 @ 1MHz, and graphics processor VIC which took …
... sound). Compare this to the ZX Spectrum 16k, 48k and Plus ... little less than 16k of ROM. The ZX Spectrum ROM code that makes up ... how both BBC BASIC and ZX Spectrum was done. Then improved ... bare minimum to port over ZX Spectrum games :(
[b][ ... -
The Diagnostic PCBIt arrived in the post today so this is my first go with the Diagnostic PCB. (bought on Ebay) This item , I think , does the same job as Retroleu…
... works just like a normal ROM chip when the CPU tries ... ‘slowly’ is if the flash ROM is blank (if building your ... card to ‘boot’ the normal ZX Spectrum ROM (BASIC). Then load from tape ... selected ‘slot’ in the flash ROM.
There is a ... -
Prototype Rom, now available[url="http://www.computinghistory.org.uk/det/51620/Sinclair-ZX-Spectrum-Prototype/"]computinghistory.org.uk/det/51620/Sinclair-ZX-Spectrum-Prototype/…
Ironically the Sinclair ZX Spectrum ROM is called a "prototype" but ... the web site this particular ROM is newer and perhaps more ... -
Elusive Strategy Games done by the Smaller or less Prolific Software Houses.Most ZX Sinclair Spectrum War/Strategy games were produced by CCS , PSS or Lothlorien . I am trying to get a list of all the other ones. This is what…
... .io/zx-spectrum-rom-new-wheels-john-1985automata-uk/"]https://downloadroms.io/zx-spectrum-rom-new ... -
edge connector... breadboard / external romso i purchased a breadboard on a edge connector.. to experiment with .. my first task to make a external rom boot (32k eeprom) so i think i got every…
This is the recommended method for external ROMs:
[url=https://postimg.cc/2V6CfF0t][img]https://i.postimg.cc/2V6CfF0t/ZX-Spectrum-ROM-board-27512.png[/img][/url]
[b][i]Mark[/i][/b]
