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Looking for rare TZX blocksBy rare I mean out of the hundreds of TZX I have non of the following blocks exist. I need to test my loading/handling/saving code. Are there any TZX…
... written in the ROM and these are the values that concern the TZX interpretation ... of the tape.
For the practical purposes of block 0x10, the ROM doesn ... 't care about the polarity, as it ... -
Looking for rare TZX blocksBy rare I mean out of the hundreds of TZX I have non of the following blocks exist. I need to test my loading/handling/saving code. Are there any TZX…
... Let's not confuse the analog and the digital domains. We ... TZX players and emulators render the TZX data "analogically" ( ... other effects; the ROM always starts the leader with the same polarity.
I'm having the impression that the TZX worked well for ... -
Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... into an INPUT stream the ROM converts them to the corect colour codes ... copy of Geoff Wearmouth's ROM assembly file, and take a ... around L0376: which is where the key-decode for these codes ... -
Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... able to access the input system of the Spectrum, not the INPUT keyword ... that code to the ROM, which converts it to the two-byte control ... , I'll add it to the BASIC faq.
D ... -
Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... that, you're looking up the value of A$, which requires ... decoding the variable (and finding it in ... INKEY$, it pretty much decodes the keyboard and leaves it at ... up a LONG loop with the two, and timing it.
Pixel LimitIF Y3<192 THEN : LET x2=INT (128+X*A*SIN A): LET y2=INT (Y3): DRAW INK
... possible to change the height of the lower part of the screen by ... change point 0,0.
The ROM routine for POINT still tests ...Problems with SpinHi, took this emulator for a spin, loaded a hacked version of JSW and willy keeps jumping. Tried another version of JSW and again, he constantly jump…
... make SPIN seem still in the early stages of it's ... with an imaginery problem about the rom files it said I didnt ...5th International Sinclair & Sam Days, Urmond NLTook a trip to Urmond (NL) on Saturday to check out the 5th International Sinclair & Sam meeting. It proved to be an interesting afternoon, spent wit…
... after the foto the BASIC-program crashed. After starting the computer again the commands ... that the flashlight resetted some bits in the ROM and therefore altering the table ... picture and on another eprom the ROM crashed completely.
We ...5th International Sinclair & Sam Days, Urmond NLTook a trip to Urmond (NL) on Saturday to check out the 5th International Sinclair & Sam meeting. It proved to be an interesting afternoon, spent wit…
... after the foto the BASIC-program crashed. After starting the computer again the commands ... that the flashlight resetted some bits in the ROM and therefore altering the table ... picture and on another eprom the ROM crashed completely.
We ...Swedish SPectrum ROM foundFrom a contributor to my inbox: [quote] Went to a flea market today to look for old computers and found a rubber-key Speccy. Didn't really look at i…
... one version of the ROM.
This ROM was implemented ... />
This ROM is the only public attempt from Sinclair ... Research to improve upon the original 1982 beta ROM.
ROM disassembly does not work but the fix that appears in the Nordic ROM ...Which is better? Pyramania or Odd Job Eddie?Since they are essentially the same game engine, I just thought I'd ask. I think Pyramania has better level design and therefore wins. However, back…
Actually, this brings up an interesting question, is there some kind of level hacking utility for these games? Because the guy who made Eddie probably would have made one rather than hacking the platforms up by hand...Pixel LimitIF Y3<192 THEN : LET x2=INT (128+X*A*SIN A): LET y2=INT (Y3): DRAW INK
... point 0,0.
The ROM routine for POINT still tests ... with the value 176, not 192 ... /> [/quote]
By the way, this poke will make ... the Spectrum crash if stream # ... /> This is one of the first pokes I saw being ...plus3dos headersThe plus 3 manual states that bytes 15...22 contain +3 BASIC header data. Which on the whole seems to be true, however I've never seen bit 22 being a…
... 0 & 1 contain the length of the data / header block and ... your tape routine" respectively. The ROM code saves the flag byte. Other code ... probably want to be reading the ROM disassembly at this point!
ORG? Mm?What is ZXSpin compaining about when I haven't defined an ORG? I understand it's some sort of address where the code will be stored. If this is the …
... I'm not the best member of the SPIN team to ... want in memory (including the ROM if you check that option ... It will either use the ORG option in your ... source as the address to assemble to, ... specify a memory address in the "Assemble..." dialog. You only ...Which Emulator do you use the most? and whyI currently use ZX32, it's free, which is great but it's not as fast as I'd like. Please everybody, tell me your fave emulator and why. I'm quite …
... and add one to the Tstates taken by the instruction.
... when you get into the realms of demos and ... However, if speed is of the issue, like it is in ... as I'm only emulating the ROM. But you'll need ... contention (or at the very least some sort of ...Other EmulatorsI was wondering what emulators for other systems do people have on their PC and are these emulators for systems you used to/still own I only get emu…
... trying to find out the best games for various ... but i like trying the games out for these ... br />
Part of the 'fun' for me though is ... games on each one, even the Commode ! ;)
... if you like the look of the game then find the rom online.
List of RANDOMIZE USR code effects?Hi chaps, Does anyone have one of these please? Thanks.
... /sinclair/books/CompleteSpectrumROMDisassemblyThe.pdf"]The Complete Spectrum ROM Disassembly[/url] - everything you ... to ask.
Basically, the ROM consists of a program; one ... of these are occupied by the ROM. Every memory location consists of ...List of RANDOMIZE USR code effects?Hi chaps, Does anyone have one of these please? Thanks.
... />
These addresses hold the ROM for the Spectrum BASIC. A RANDOMIZE to ... then when called on the right way by the ROM.
... .
The address 1331 is a part of the ROM-LOADER from ... tape. With the right values it ...Weird loaders; 1) Why? 2) How? (Curiosity question)Hello again. Sorry to be asking/posting so much today, but I've just arrived here and am plumbing the depths of nearly 22 years of making cups of te…
... ]
Yes: every time the ROM loading routine receives an edge ... than the ROM code. Generally, the custom loaders were "written" by copying the ROM code ... and changing one or two constants to increase the ...List of RANDOMIZE USR code effects?Hi chaps, Does anyone have one of these please? Thanks.
I know that the ROM occupies those memory locations. I was just saying that I don't know what the individual locations contain. That might make an interesting project actually; to read up on it and learn how it works.
Thanks anyway Dr. Beep.Stupid question: How compatible is the +2 anyway?Right, time for a stupid question. I've never really had a +2 or +3 until a couple of weeks ago, got myself a +2 in an almost-new condition. Since my…
... . Limited changes to the ROM (copyright message only?). The +2a/b has ... some ports behaving differently and the ROM being pretty different.
... pity, since it is the better machine from an aesthetic ... of view (will never beat the heatsink-one, though).
...Weird loaders; 1) Why? 2) How? (Curiosity question)Hello again. Sorry to be asking/posting so much today, but I've just arrived here and am plumbing the depths of nearly 22 years of making cups of te…
... /> [/quote]
1) Copy ROM loader to RAM.
2 ... .
Assuming you understand the ROM loader, this is trivial. If ... trivial, you don't understand the ROM loader.
Adding something ...Ghost Castles - Brand new game by WSSThe first 256K game which uses ROM paging technology on ZX-Spectrum 48K ! How ? It is a full 48K game with one special ROM which contains many part…
... properly.
Whoever wrote the loader obviously put smart graphics ... I need to go hunt the apparently available information on getting ... /> Oh, nice work on the rest of the game from what I ... works, or for that matter the ROM program itself. Can't do ...Ghost Castles - Brand new game by WSSThe first 256K game which uses ROM paging technology on ZX-Spectrum 48K ! How ? It is a full 48K game with one special ROM which contains many part…
... really would like to order the rom pack and joystick adapter (it ... . Is the analog adapter for PC joystick?
2. Does rom pack ...Ghost Castles - Brand new game by WSSThe first 256K game which uses ROM paging technology on ZX-Spectrum 48K ! How ? It is a full 48K game with one special ROM which contains many part…
... G-Tech and ROM. Sooner I will publish the G-Tech information ... right. Expensive...yes. To make the game depended on only brain ... heart, mettle and free-time. The hardware depends on materials which ... adapter for PC joystick and the ROM is working all of Interface ...Investronica Inves Spectrum +Hi, Has anyone here ever heard of the Investronica Inves Spectrum +? This site [url="http://www.silicium.org/uk/sinclair/inves.htm"]http://www.sili…
... /> - Bugfixed ROM with messages in Spanish (although very different to the messages ... ]
You can grab the ROM from [url="http://www.geocities ... elsewhere if you plug in the ROM... I've yet to try ...Any programmers interested in writing for a more powerful machine?Apparently not.
I think that aowen meant the hardware modifications that add several things to the spectrum such as more memory and some nice things more, not just to the ROM containing SE BASIC.
Am I right?The legality of emulatorsCan someone please explain to me the legality of selling emulators. I have been told that it is legal to sell an emulator provided no charge is made …
If the author has permission from Amstrad and any other relevant copyright holders to sell their emulator including the ROM code than they may do so subject to the agreement they have made.
