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Opus Discovery New DriveHi I have a problem with my opus discovery disk drive. The original drive itself had been faulty for a number of years and I recently replaced it wi…
... opus discovery disk drive. The original drive itself had been ... unit.
I replaced the rom to version 2.2 and ... fitted the additional memory chip (Thanks ... type" It can cat the disk and it will load ... correct this? I know the old one would be a ... -
Colour whilst PLOTing in MCI am using the ROM PLOT routine at $22E5, how do I control the colour of the results, so I can preferably use INK 8, it seems to have a mind of its o…
I am using the ROM PLOT routine at $22E5, how do I control the colour of the results, so I can preferably use INK 8, it seems to have a mind of its own!
How do I make it INVERSE, FLASH, OVER etc? -
quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... , revising and refining all the programming tips & utility ...
The LH-side parameter is the destination and the RH-side ... parameter is the source, ... outside the function call, due to the STR$ bug in the ROM, as ... -
Games/Programs making use of DivIDE featuresHello :) I have a question: I may be wrong, but it looks like the DivIDE and similar interfaces for the ZX Spectrum are almost exclusively used for …
... that took advantage of the features and capabilities DivIDE ... access and such massive (for the Spectrum) storage capacity, specially ... load the snapshots or attach the TAP files to the ROM tape ... motivation to write the software or does the DivIDE hardware ... -
Can a Multiface be modified to use different ports?I've been asked if it is possible to upgrade an older non-DISCiPLE/+D MF128 to a later model by modifying the hardware. I know that changing the ROM…
... know that changing the ROM would be fine, but the ports would still ... of rewiring/cutting traces on the PCB so that it would ... use the ports of the newer MF128 and be ... -
Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…
... The URL for the page with the assembler version is in the listing ... BASIC version, which follows the original routine quite closely ... 1000. The loop is only half the length as the decimal ... the program), but because of the way the numbers are handled the ROM ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... , Spectrum fan since childhood in the eighties, and have recently got ... br />
I stumbled on the [URL="http://newton.sunderland.ac ... a fairly minor hack of the ROM loader, so I can quite ... used a loader derived from the Sentient loader? Or are turboloaders ... -
Homebrew keyboardGuys, just a quick question. I really should know, but I don't :( I've built keyboards for the standard layout before now, and was hoping to expand…
... hoping to expand the idea to something like the Spectrum + keyboard, with ... , and b) will the ROM read the switch contact reliably - the (for example) "P ... and hope for the best. The single keypress activating the Symbol shift and ... -
+2A musings; to repair, mod or trade?I grew up with a 48K Spectrum+, but it went to computer heaven many years ago. During my First Spectrum Renaissance (when I was a student in the lat…
... somewhere at the back; lifting up the PSU cable causes the TV picture ... />
What about the ROM set? The +2A is perhaps the least compatible Spectrum ... are my options? Does the +3e ROM set increase compatibility with software ... -
How do I enable Currah speech in ZX SpinHow do I get the speech to activate? Do I need to download the ROM from somewhere? Also how do you program it in machine code?
How do I get the speech to activate?
Do I need to download the ROM from somewhere?
Also how do you program it in machine code? -
JSW2 - Game Loader DifferencesThere are three official releases of JSW2. I'm not counting the 'JSW2-128' version here as far as I'm aware this was not in any way 'official' as it …
... order to fit the fix, the cheats and the teleport routines into ... are:
1. The Software Projects release
2 ...
The loading screen is the same for all versions ... containing assembly to headerless load the game code (47416 bytes) ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... the ROM. The source is all GPLv2, derived from the ZX81 ROM and the SAM Coupe ROM ... and published with the permission of ... easier to compare against the 1982 ROM. Sorry about the formatting, but using ... -
Renegade Hit Squad Re-releaseI've found a problem with TZX included in file [url]ftp://ftp.worldofspectrum.org/pub/sinclair/games/r/Renegade(TheHitSquad).tzx.zip[/url]. The Spee…
... ).tzx.zip[/url].
The SpeedLock used is 4 not ... bytes lenght is loaded by the ROM routine, so can't be ... a Turbo Block.
The problem with this last block ... loads with many emulators, then the RENEGADE graphic title from menu ... -
A problem thats hurting my head...Since Zer0 loves to crash with AGD, I've decided to use ZX Spin for my speccy developments. But here's a problem: Zer0 only saves .szx snapshots, tha…
... he said this:
[QUOTE]...The only thing I notice is ... that the file is far too big ... 128kb. I think this means the ROM is included...[/QUOTE]
Did ... /file.html"]here[/URL] is the snapshot. -
Are there many +3 game patches available?With the incompatibilities of some of the original 48k games running on the +3, I wondered how many have been patched so far and if there is a list o…
With the incompatibilities of some of the original 48k games running on the +3 ... have Bomb Jack running on the +3. From what I've ... because it uses the empty area at the end of the ROM as an ... IM2 table as perhaps some other games on the ... -
PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…
... the feeling there is something wrong with rom selection.
The ... #/ZXROM output of the CPLD drives the /CSROM on the ... the rom select circuit, here's a part of the schematic; the #/ZXROM is the ... to disable the ZX Spectrum's rom.
... -
My new Spectrum +3 has no start menu.Hi all, I recently took delivery of my 'new' Spectrum +3 from a Fleebay auction. So I serviced the drive on Saturday as it had a snapped drive belt …
... that's on screen is the Amstrad copyright messages. There's ... up and low and behold the ROM chips are loose in their ... try disconnecting the drive and powering the machine up but the problem remains ... I blown them by powering the machine on with them partially ... -
ROMS for a Spectrum +3 OR a complete motherboardI took a chance on Fleebay recently on a Spectrum +3. Unfortunately it looks like the ROM's are away on it. So, I'm looking for both ROM chips (label…
... +3. Unfortunately it looks like the ROM's are away on it ... , I'm looking for both ROM chips (labelled Amstrad 40092 and ... :) Just in case the damage goes beyond the ROM's.....(I hope not ... an EPROM programmer and replace the ROM's myself. But a decent ... -
understanding machine codeHi Quick question. Am not really sure if it fits development forum as its not really development per se its more a learners question about developm…
... -82 I am running the routine and had couple ... if I am misunderstanding the expected result of LD ... A currently contains 00 by the way, from XOR A.< ... Anyway I will look at the ROM Disassembly to see if it ... thing also.....
the line RST 10 seems to ... -
Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…
... -map to intercept reads to the ROM address space, and treat them ... mapped across the ROM and lower 16K address spaces. (That the ROM occasionally writes ... to itself is easily overcome by not using ROM ... -
Interface 1bis updateSupport for connecting a standard PC keyboard to the interface?s PS/2 socket, in place of a mouse, has been added. The external keyboard?s output is …
... accessible through the standard 48k ROM routines , in parallel with the ZX Spectrum ... do not use the ROM for reading the keyboard. On the other hand though ... />
As a novel feature, the microcontroller firmware implements a ?tokenizer ... -
byte to screen eventI have another question regarding assembly routine in MMCOYZXS by Toni Baker page's 87-88 [QUOTE]21A440 LD HL,40A4 11083F LD DE,3F08 0608 LD B,08…
... with a debugger the moment that the current bytes of the character @ 0x3Fxx ... address the screen location are passed the 'A' register which contains the memory ... is the character, or the specific byte of the character from the ROM table.
SpudACEOk guys a new SpudACE is available for who like the Jupiter ACE. [code] v0.317 ADDED: Check the Edit ROM menu item to be able to edit the ROM. ADDE…
... : Check the Edit ROM menu item to be able to edit the ROM.
FIXED: The Copy, Fill and Find function ... /> [/code] You can have either the [URL="http://bit.ly/wuIaI5 ... "]installed[/URL] version or the [URL="http://bit.ly/zlWQsm ...Interesting/Unusual ZX81Hello I am shopping for a ZX81 and while I was browsing Ebay today, I came across one that is described as "having a 64K chip." When I saw the ad t…
... but upon closer inspection of the photos posted, I noticed ... that the "64K chip" mentioned in the description is actually the ROM chip ... !
Does anybody know what a 64K ROM ... chip may be doing inside a ZX81?
The ...Xark does not loadXark does not load on many emulators (e.g. Klive, Fuse, FBZX Wii) both with speed load routine and normal mode. [url]http://www.worldofspectrum.org/…
... /infoseek.cgi[/url]
The 3 standard speed data blocks ... a flag byte error since the ROM expects 0X00 instead of 0XFF ...displaying all memory activity in a screenDunno why I keep thinking about this, but here goes Is it easy enough to add a screen to an emulator that shows every memory address' activity.... …
... 49,152 if you ignore the ROM?) squares (well, rectangles) each ... maybe even allowing the user to dynamically move the grid around, so ... be good to show the activity on the dispkay memory?
< ... br /> 400,000 pixels representing the status of every bit in ...0 OK, 0:1Is there an address in the ROM that you can call that returns you to basic giving the 0 OK, 0:1 message?
Is there an address in the ROM that you can call that returns you to basic giving the 0 OK, 0:1 message?hyperthetical questionIf i was to remove the rom from a +128 or +2 and replace it with a 48k rom would the machine work and boot? if so would it still run 128k games im th…
If i was to remove the rom from a +128 or +2 and replace it with a 48k rom would the machine work and boot? if so would it still run 128k games im thinking it would then just like being perminently in usr0 modeDark Sceptre 128K?This is a follow-up from [URL="http://www.worldofspectrum.org/forums/showthread.php?t=5915"]this thread[/URL]... [QUOTE=scunny;780606]Looking around…
... QUOTE]
What about hacking the game into a new "Dark ... be enough room to implement the "missing" commands, implement some ... and interviews), fix exploits and the battle bug. It's certainly ... s already enough knowledge about the game among people here ...Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
... get PLOT, etc. to address the full screen from BASIC without ... bypass that annoying restriction in the ROM at $22AA, and then I ... 's thinking in restricting the graphics commands to the top 22 lines ... , POINT will all work across the full screen area? Then again ...
