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Interface 1 - RS232 question.I am thinking about doing some Spectrum stuff based around the RS232 port used on the Interface 1. Has anyone had any joy doing this with an emulator…
... in that case using the ROM serial routines are adequate :)
ROM's printer routines as many ... parallel printer on +3 and Black +2. -
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…
... is basically a ZX spectrum rom on a board, when it ... it overrides the on board rom of the TS2068 turning it ... WITH the zx spectrum emulator rom built in..and for a ... now I recall it was black and white until I pressed ... -
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…
... different colour for bright black and plain black, at least on RF ... />
With a spectrum emulator rom equivalent installed, most 48k programs ... likely to call into the ROM. The multi-loaders that came ... same place in the 2068 rom.
It's ... -
2015 Games ListHi, this is the thread I use for the 2015 Games List. Note: Due to forum update policies, the latest version of the list will always be found somewh…
...
* [b]ZX81 SP ROM Disassembly[/b]
[[url="http ... /forums/discussion/50612/zx81-sp-rom-disassembly"]Link[/url]]
[b]Black Star[/b]
[i](Invaders ... -
Problem with 128k +3Got this a while ago on Ebay, just got around to trying it out and face the following problem. Displays garble block on the screen and keyboard does…
... />
An alternating white/black border means the following:
Predominantly white with flashing black = bit 0 failure, so ... IC3 or IC5.
Predominantly black with flashing white = bit ... at 0x0130 and 0x0367 in ROM 0)
This ... -
2015 Games ListHi, this is the thread I use for the 2015 Games List. Note: Due to forum update policies, the latest version of the list will always be found somewh…
...
* [b]ZX81 SP ROM Disassembly[/b]
[[url="http ... /forums/discussion/50612/zx81-sp-rom-disassembly"]Link[/url]]
[b]Black Star[/b]
[i](Invaders ... -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... drives and the 2.31 rom and ram chip.
and ... and powder coated in mat black and new decals on front ... -
Issue 3B turning offI'm trying to save a Spectrum Issue 3B. I restored the power supply section, changing the 7805, TR4, and TR5, besides all electrolytic capacitors. No…
... the ULA. So any chip (ROM, Z80 and discrete logic ICs ... range socket, then from the black "common" or negative meter socket ... -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... rust, and carefully use a black spray can (paint) on the ... USR 8 should return the ROM version nr.
For 720k ... -
Russian-speaking topic - Multiface 3Hi friends! The Administration will not mind if I create a topic in which you can communicate in Russian? No politics. No racism. Speccy only! :-) …
... to collect Multiface3 (M3), the ROM which is the best? On ... versions of the Multiface 3 ROM.
The only difference is ... the games should be a black border. In some games, the ... the ROM multifeysa that he established at boot time snapshot black border ... -
Harlequin Rev GI have just got all the bits to build an Harlequin Rev G system and I went for a red solder mask board. I have fitted the 3 surface mount components…
... /> R10 and R11 are brown black orange = 10k ohms
U5 ... and followed traces to cpu, rom, U43 U44, U11 and all ... -
Non working issue 3BGuys Hope you can help me here (or maybe, someonene from Europe could take a look at it? I've already tried different ULA, CPU, ROM and low RAM (…
... section of code in the ROM.
Does the multicoloured ... does the centre section go black first?
if the ... screen does not go black, the CPU is not starting ... memory check routine in the ROM. There can be various reasons ... -
Non working issue 3BGuys Hope you can help me here (or maybe, someonene from Europe could take a look at it? I've already tried different ULA, CPU, ROM and low RAM (…
... section of code in the ROM.
Does the multicoloured ... does the centre section go black first?
if the ... screen does not go black, the CPU is not starting ... memory check routine in the ROM. There can be various reasons ... -
Please test your ZX128+2 (grey model)Please reset your ZX128+2 (grey) and write in 128 basic (or in USR0 mode): [B]PRINT IN 32765[/B] - if basic crash (black screen) then your ZX contai…
... crash (because ROM 1 becomes paged in) and the black screen (because ... at C000, and the 48K ROM's RAM test routine causes ... -
Ultimate games with short machine code files loaded lastThis is a bit geeky, you've been warned! I remember early Ultimate games loaded from tape had the ascending beeping noise, a "Please wait" message, …
... had a pristine, 1st-generation ROM-routine saved copy of Knight ... it slightly to have a black masked border with no stripes ... -
P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... LDIs.
- Buffer is conveniently ROM addresses (uncontended memory)
- Starts ... painted RED, on start and BLACK when finished.
Border ... -
P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... 256KB or 512KB Cartridge ROM ?
Switching ROM pages, should be ... banks.
Access to ROM is fast and un-contended ... .
But with ROM, I only have one switchable ... color to next char, with black background, to prevent color clash ... -
A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
The version for the new c library is split between two files. One holds the C code and the other holds the asm stuff. The compile lines are listed at the top of demo.c. "q" increases the number of sprites, "a" decreases the number of sprites, "p" ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... get a red border with black screen contents on bootup, shortly ... in memory (the Spectrum's ROM). The following instruction will however ... come from the Disciple ROM/RAM.
When ... , so the Spectrum's ROM should provide the next instruction ... -
Basic Screen Shadow QuestionHello, I've been porting a game to the Spectrum from another platform. So far so good and I have per pixel screen scrolling working really nicely …
... initialized to #38 by the ROM, but this is not the ... remain all zeros. Hence the black screen I suppose... Also look ... -
Basic Screen Shadow QuestionHello, I've been porting a game to the Spectrum from another platform. So far so good and I have per pixel screen scrolling working really nicely …
... initialized to #38 by the ROM, but this is not ... remain all zeros. Hence the black screen I suppose... [/quote]< ... though, that the 128 ROM system/BASIC is often a ... interrupt handler of the 128 ROM is flipping pages at ... to switch to the 48 ROM which doesn't mess ... -
Magenta border and black screenGot my hands on a issue 3 48k machine. Did the initial resistance checks and everything seemed in order buy when I switch the machine on all I get is…
... first things that the BASIC ROM code does is to set ... zeros. This normally gives a black screen. Then it writes new ... -
Startup colours of the Spectrum ROMHi Folks, Thought I would have a go at changing the startup colours of the Spectrum ROMs used within BasinC which ships with 48.rom (16384 bytes) …
... Basin the screen starts with black screen border as expected. If ... colour does not reset to black.
Could there be ... Basin that is overriding the ROM code?
Many thanks ... -
help with my original issue 3b from when i was a teen. possible lower ram fault.hello, well ive tried to fix my old speccy, but haven't made much progress. could you help me out with some diagnosis. the fault occurred about…
... 's unusual for a mask ROM to fail (the type with ... of the black plastic of the chip). And if the ROM had ... the Spectrum's ROM with a memory test ROM image would soon ... -
Maketzx helpI am trying to recover the contents of a c60 tape using maketzx. So far I have sampled the tape using Audacity and have managed to make a 75% working…
... , you get messages in the black console about each block of ... suspect that it is standard ROM loader than select it, don ... -
What are the differences between the +2 and the +2A ?I only acquired a +2 for the first time in my life a few months ago. It works fine. :) I even managed to tracke down nearly all the wargames by the s…
... 128K ROM worked, for example, as it was pretty much a black ... -
Harlequin Rev G - Decoupling Capacitors?Guys - I started assembling my Rev G Harlequin board over the weekend. Right after I picked it up and started loading parts, it struck me that there…
... be considered a kind of black magic imho... :)
That ... near big IC's like ROM / RAM / CPU etc. 100 nF ... -
More from Timex Computer corp. (U.S.A.)I'm hoping this will be of interest to some of you. Bruno: For many years we've been told a 48K Spectrum had been modified to work with NTSC but did…
... software test platforms were the black & white Sinclair computer as ... have been available if the ROM had been completed as intended ... -
Send in the ClonesPlease name all the Spectrum clones out there ( I would say I need it back on my desk in 5 minutes , but I will be a bit more generous in this case!…
... Programming|Sinclair Research Ltd}.#The ROM image is available at ... Programming|Sinclair Research Ltd}.#The ROM image is available at ... Introduction|Sinclair Research Ltd}.#The ROM image is available at ... than being grey, it is black. Internally, the +2A is ... -
Send in the ClonesPlease name all the Spectrum clones out there ( I would say I need it back on my desk in 5 minutes , but I will be a bit more generous in this case!…
... chips, equipped with 4Kb of ROM (integer calculation only) and ... than being grey, it is black. Internally, the +2A is ... Sinclair Research Ltd} with modified ROM (additional command for User ... (6 channels), 32Kb of ROM (with improved BASIC including software ...
