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Spectrum loading: the single 'note' soundHello everyone, can anyone explain what is happening when during loading, the tape emits what seems to be a single, usually high pitched note, in bet…
... what seems to be a single, usually high pitched note, in ... -
Hardware description - BETA DISK interfaceExist more versions and clones of BETA DISK interface. Beta disk 48, beta disk 128, brasilian clones of beta disk 48, russian clones of beta disk 128…
... are connect and CPU read instruction from adress #3D2F of external ... external rom also if any instruction in tr-dos rom set ... = unused (ignored)
bit 6 = Single/Double density (0=DD/1 ... -
Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... /> You enter hex values an instruction at a time and hit ... HL
[/code]
single register
[code]
single registers....
Hmmm...< ... guess some registers like the single life.)
Time ... -
Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... . A single wrong instruction and BAM, the Spectrum crashes. A single missing instruction and ... -
Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
I made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the single wire mod, and almost as easy.
[url]https://www.youtube.com/watch?v=CFbAQl-kx8g[/url] -
Is it possible to have a Single Drive on Betadisk as Drive Letter B (other than A)Hello, I?ve problems with getting two drives to work on my Betadisk v4 Interface: I?ve tried a second drive as slave drive but can?t get it to work…
... of the drives.
Single drives work well as Drive ... it possible to have one single drive as Drive B: on ... Drive Letter A: to a single drive ?
Regards,
Knight Lore instructions preservationMoving on from the Alien 8 instruction booklet I recreated a few months back, I'm now almost done on the Knight Lore ones. However, though I have th…
... on from the Alien 8 instruction booklet I recreated a few ... PDF should read, i.e. single pages, or as if it ...ProTracker manual/instruction in English?Hello. A friend of mine would like to start making AY music on ZX Spectrum. In this purpose he'd like to have a ProTracker's instruction/guide/manu…
Hello.
A friend of mine would like to start making AY music on ZX Spectrum.
In this purpose he'd like to have a ProTracker's instruction/guide/manual.
In English language.
Is there anything like it, on the Net?Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... you can use a single INC instruction to go from one character ...Fuse - HelpAs some of you might have guessed already, I'm kind of doing a rampage on a lot of emulators, to test things out, and find the most suitable for deve…
... decided to start trying every single menu/option, to start to ... with two columns, "address" and "instruction", easy to get, program code ...The history of ESXDOS, the DivMMC and the DivMMC EnJOY![img]http://benophetinternet.nl/hobby/divmmc_history/1%20esxdos.jpg[/img] These are the stories behind esxDOS, the most popular operating system e…
... card requires only a single OUT or IN instruction, which takes 16 ...Brutal Doom single player campaign released - Mars needs you!*** Warning: Not for the squeamish, or anyone too young to see lots of pixelated blood and over the top video-game violence! *** If you still play…
... others, but now a full single player campaign has been released ...Question of contentionI'm not desperate to go digging through technical descriptions in depth, but one thing bugs me about the Speccy's video contention model - and that's…
... for a single memory operation even when acting on an instruction that ...NEBULUS - Completed Without losing a single lifeHi Wozzy guys, I just wanted to share this video with you to see what you think, It's a longplay of ZX Nebulus and I completed it without losing a si…
... completed it without losing a single life, a complete flawless run ...Any 'emulator + single game packaged in a ,exe file" utilities around?Morning all, I'd like to be able to create a single executable file that contains an emulator and a single game/utility that starts loading process …
... be able to create a single executable file that contains an ... emulator and a single game/utility that starts loading ...Instruction sheets, manuals and other items!Has anyone got the following instruction sheets, manuals and/or other items: After Burner Sticker Double Dragon 2 Poster Rick Dangerous Instruct…
Has anyone got the following instruction sheets, manuals and/or ... Poster
Rick Dangerous Instruction Poster (have the comic)< ... br /> Star Raiders II Instruction Sheet for Spectrum
... Tau Ceti Instruction Sheet
Any ...FOR loop without NEXT instruction. How come?I've been looking through the BASIC listing for M.C. Lothlorien's Red Baron and have noticed a line of looping code that is puzzling me. This is lin…
... had to have a NEXT instruction yet the second FOR j ...CODE instruction in array$ PRINTSo I'm still plugging away at BASIC and have found a line of code (another!) that's really puzzling me. The line is as follows: PRINT A$(P+Q TO P…
... /> However, there's a CODE instruction in there and I don ... am misundertanding how the CODE instruction works or I've made ...What was the last vinyl single you bought?Now a more or less obsolete format (apart from some indie bands) can you remember the last vinyl single you bought? I was quite late to resist CD an…
... you remember the last vinyl single you bought? I was quite ...Easiest way to figure instruction lengthGiven a start address, what is the easiest way to find out instruction length at that address in Z80? I found [url="http://www.z80.info/decoding.htm"…
... easiest way to find out instruction length at that address in ...Is it possible to make the Z80 execute a bizarre instruction?What happens when it gets an unrecognised instruction OP Code, I mean something following a #ED that isn't one of the undocumented instructions eithe…
... when it gets an unrecognised instruction OP Code, I mean something ...How did people program GamesI have been wondering how people wrote games. Did they use basic and just type in to the spectrum interface and save it. Or did they use assembler, a…
... decimal equivalents next to each instruction. These decimal vales were then ... were the days when a single person could design a game ...Microdrive woesHi there! Just managed to pick up a 2nd hand Microdrive and interface one... Came with an introductory program which doesn't seem to load. Since its…
... become unformatted by an OUT instruction, which starts the motor in ... enabled browser.
The single cartridge is initially unformatted so ...Name of a joystickThis is a really arb question. But can any of you guys remember the name of the grey joystick you used to plug into the 128k It was not kempston , t…
Perhaps you mean 5678-0, that is, cursor keys? Because 6789-0 could have been an arrangement not unlike ultimate's QWER-T, which most people hated... Could be read in a single IN instruction, I think, though. I don't remember of games using 6789-0.BASIC code challengeWrite a program in BASIC as short as possible that will continue after KEY-RELEASED. The program must be fully relocatable (so it must be programmed …
... 'm afraid, but in a single line, and definately more perverted ... jump at either the first instruction or the second (if a ...
