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The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... will disable the internal ROM. This was used for ... place of the paged out ROM.[/quote]
Yeah, ... screen text editor rather than line or screen editors.
[quote]The ROM would have to be modified ... total rewrite of the ROM.[/quote]
A blitter ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... TOF, BOF and each scan line. That's what I'm ... whereever (start of scan line, middle of scan line, etc) and easily ... occupied by any page of ROM or any page of the ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... whereever (start of scan line, middle of scan line, etc) and easily ... occupied by any page of ROM or any page of the ... -
Is the new "Retro Gamer" any good?The only place that would carry it (a Barnes & Noble built on the site of an abandoned golf course) no longer did after Live Publishing folded. I hea…
... today, the different coloured labelled ROM revisions resulting in the Red ... the game, the international date line bug which mutants won't ... -
Games that are impossible to complete due to bugs!I'm trying to compile a list of Speccy games that cannot be completed because of a bug (or simply bad programming)! Here's a few... [B]Frankie Goes …
... very low region of the ROM reseting the machine - I could ... register pair.
This line :- #db85: ld de, #5a84
+3 Joystick interfaceI have just purchased a +3, never had one and I wanted to here the 128K music on my games. I know the built in JS ports are wired differently, so do…
... interface that can have the ROM carts plugged in tho - IF2 ... play with the NMI and ROM CS lines, I'd say ... the NMI line and the switching of ROMs (ROM CS line etc) I ...Currah MicrosourceHi Anyone here got a Currah Microsource ? I have one, its one of the original eval units complete with 'draft' manual. Just interested to see how …
... />
To test the ROM I have written a little ... 512th byte of ROM out to the first line of the screen ... but on the second pixel line. I definitely got a different ... to BASIC with the wrong ROM paged in). I am ... (b) save the MicroSource ROM to tape via a tape ...Floating point representationI'm planning on picking up the [url=http://matt.west.co.tt/category/spectrum/openzxrom/]OpenZXRom[/url] project from where I left off a few months ba…
... though nothing like the Speccy. ROM routines did still use INTs ... and because a lot of ROM routines use INT parameters. ... so people could use whatever ROM best suited their needs. ... caused the interpreter to precompile line numbers into actual addresses of ...Spectrum +2a Keyboard bug?If anyone has a Working +2a... I bought a +2a for Christmas 1986 with an 80 Column thermal printer from Dixons. It was bundled with a tape supposed…
... /+3 is the caps shift line sometimes going logic low when ... a bug in the editor ROM allows it.Spectrum +2a Keyboard bug?If anyone has a Working +2a... I bought a +2a for Christmas 1986 with an 80 Column thermal printer from Dixons. It was bundled with a tape supposed…
... other slug) into the number line. The idea being to get ... /> Or you could hack the ROM to only recognise a key ...Mango Jones Z80 file incomplete (?)Hi there. I was trying out [URL="http://www.worldofspectrum.org/infoseek.cgi?regexp=%5EMango+Jones$&pub=%5ECrash$&model=spectrum"]Mango Jones[/URL]…
... use. Yep, it's a ROM loader and I just made ... Z80 ? I think the on-line emulator supports multiloads.
Firefox (new thoughts)Maybe more people would use Firefox if there was a version for the Speccy! [code] 10 PRINT AT 2, 2; "Press F for Firefox or I for M$IE" 20 LET K$=IN…
... done without external RAM, modified ROM etc?
Is all that ... , but at 32 characters per line (assuming you actually wanna read ...Playing an AVI Video on an XBOX.I have a standard unmoded XBox. I wants to watch a video I have downloaded on the big screen and have no spare blank DVDs to hand but a stack of sta…
... 't (it can read CD-ROM, audio CD, DVD and DVD ... the mod chip when on line.Spectrum RAM Paks...This jogged my memory (excuse the pun!!) : [url]http://cgi.ebay.co.uk/CURRAH-32K-RAM-PACK-BOXED-SINCLAIR-ZX-SPECTRUM_W0QQitemZ150057889352QQihZ005QQ…
... remember reading something about external ROM (such as interface 1, Currah ... the chip select line low making the embedded ROM inactive. The same ...Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […
... version use the cp/m line input function, and then must ... spectrum version calls the ROM editor in "input line" mode.
The return to rom in errors ...Dead Spectrum diagnosis and desolderingI have two dead Spectrums - one I'm pretty sure is caused by bad memory, and the other - well, perhaps a bad ROM, perhaps a bad CPU (it gets halfway …
... on the screen - maybe a line of short dashed lines at ... starting to therefore suspect the ROM. Is this the right track ...Dead Spectrum diagnosis and desolderingI have two dead Spectrums - one I'm pretty sure is caused by bad memory, and the other - well, perhaps a bad ROM, perhaps a bad CPU (it gets halfway …
... on the screen - maybe a line of short dashed lines at ... starting to therefore suspect the ROM. Is this the right track ... giving grief. Could still be ROM/Z80 too. If you KNOW ...Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…
... (48K RAM plus a 64K ROM cart) is just barely enough ... to four in one scan line. Hardware sprites take little software ... in the same horizontal scan line, what is normally done is ...Nooooo my speccy died!??!!Hi! I am quite sad. :( Tonight I got a kempston interface so I rushed home to try it on my spectrum+ The edge connector of the interface was narrower…
... tape (ULA, ROM, RAM) inclucing the Z80's M1 line (they didn ...Replacement ROMsSo, I've replaced a couple ROMs in my +3 to be a +3e. I used a couple of 27c256's, which has worked a treat. So if I wanted to replace the ROMs in …
... just wire the OE line or something straight to ... condition required to activate EPROM (ROM) chip for read:
But when use 27x128 line PGM (pin 27) must be ... /RD line, so any accidental write to ROM address space ... at time - CPU and ROM). It will happen btw. ...Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …
... the block,
scan line after scan line. BC holds the block ... there.
2. Call the rom routine to blit it into ... them onto screen using that rom routine, then load in the ...problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
... ), but I never removed the ROM other than to check some ... not?) you will find a line with a lower voltage span ... have to trace the dead line to the culprit chip. That ...Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […
... 48K rom mode.
At the start of a line, LET ... . This a feature of the line tokenizer, not of the executor ...Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…
... ? The examples in the spectrum rom seem to use the register ... the end of the basic line from your machine code routine ... to read expressions from the line so that you can have ... me to manually page in ROM 3 and RAM 0, and ...Blowtorch method of Speccy repairsI just did my first Spectrum repair (and successful at that). It was the Issue 2 spectrum I wrote about a while ago, I just hadn't got around to doin…
... , sound, ULA, RAM chips, and ROM mostly.
Only if it ... can test Z80's M1 line (NMI).
I had a ... just reset. If the M1 line doesn't work you will ... multiple problems, power cirquit, bad rom (booted but didn't recognise ...Amstrad takeoverHello guys, Let me introduce myself - I'm the owner (well, if you can call it that?) of [url=http://www.cpcwiki.com]CPCWiki.com[/url], and obviously…
... two years earlier for the ROM rights.
The public ... a vehicle for end-of-line peripherals, disappointment set in. It ...Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …
... . If it's the 12VA line that's shorted, the 15R ... mentioned this so ignore this line. It feeds the video circuitry ... ) but since i used its ROM to repair another board, even ... operate it without a working ROM.
Do you have ...Multiface 128 WoesI have a customer who has a couple of Mutliface 128s which are not working. He has managed to save some snapshots (and reload them) in the past, but…
If it's not the Spectrum's M1 line, it must be the paging logic. Luckily, all the chips can be bought off the shelf, except the RAM and the ROM. Would probably be an easy fix for somebody "in the know".basizx newsHello. I've uploaded a new version of basizx. Now there is also an Amstrad CPC incarnation, able to LOAD and SAVE +3 basic files in disc. And the I…
... that added pointers to line numbers used by GOTOs/ ... through the program to find line numbers afterwards. This about ... accomplished by bank switching the ROM, allowing two versions of ... the current line before resorting to searching line by line from the ...basizx newsHello. I've uploaded a new version of basizx. Now there is also an Amstrad CPC incarnation, able to LOAD and SAVE +3 basic files in disc. And the I…
... require bank switching a ROM which is a project in ... parts.[/quote]
The line pointers are IN the ... after a precompile. The line number either takes LESS RAM ... the pointer to the line you are jumping too ... and then directly making the ROM call.
Take ...
