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48k games developed on the 128kSeeing as I don't know enough about this subject(or the history of assemblers/C/C++/BASIC/FORTH/COBOL/whatever programming kits), I thought I'd ask h…
... + program text sitting in memory, we can't write a ... that would use all the memory. And program listings can ... assemebler program being placed into screen memory or compiling the program ... without graphics (graphics memory area was used by running ... -
VIC 20 on the SpectrumThe original "20 Commodes" program released for CSSCGC 2008 has been improved and now has its own entry in WoS. The improved code has been sitting on…
... /+3 only)
3) VIC Screen memory is now relocatable
4 ... pointer are reflected on the screen immediately (try pressing CAPS+SYM ... +C on the emulator screen)
If you only ... see the improvements made in screen update and general CPU speed ... -
Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... is an organisation of Spectrum screen memory. It may be really hard ... -
inverting graphics using basic?just curious if it could be done by poking screen memory ? and what's the structure. (foreground / background for each char ? ) reason I ask is I'd …
... could be done by poking screen memory ? and what's the structure ... the attribute by POKEing the screen area. It's not the ... are stored serially after the screen data at 22528. The attribute ... -
Moving screen while BEEPER's playing?Hi. For some time I think about it. First time I saw it on YouTube, on ZX Spectrum Orchestra video. Effects are of course rather simple but still…
... when you start writing to screen memory, that affects the timing of ... have to synchronise with the screen refresh. Either way, it messes ... effects whilst copying to the screen, but only noises - I haven ... -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
[QUOTE=Winston;503158]More ambitious screen modes aren't hard to ... want to buffer the full screen memory outside the normal RAM. You ... mean you couldn't buffer screen updates any more. And if ... -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... (just INC H). ZX Spectrum screen layout is not the most ... layout is when you have screen memory arranged as 256 pixel height ... address space for ZX Spectrum screen (with attributes), and probably video ... -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... layout is when you have screen memory arranged as 256 pixel height ... address space for ZX Spectrum screen (with attributes), and probably video ... , standard Spectrum screen only needs 8Kbytes of video memory for such a ... -
Supertest 128 - Loader QuestionI wonder if someone could explain (in simple terms please) :) , the purpose of the switch code. I see what is doing (going to 48k mode via spectrum)…
... small peice of code into screen memory, switch modes then the game ... -
Was the +3 a missed opportunity?I just wanted to gauge WOS opinion on this. Do people think that the +3 was a bit of disappointment that didn't really advance the hardware as much a…
... required due to the larger screen memory?[/QUOTE]
The PCW ... -
Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
The spectrum screen memory is the way it is ... want a simple linear video memory with per pixel colour etc ... how clever the spectrum video memory implementation actually *is* for it ... -
Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... /quick way of calculating the memory address of a pixel? So ... wanted to "plot" pixel at screen coordinates 50,50 how would ... on how to calculate the screen memory address are here, as comments ... -
Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... addresses for a screen memory plus an attribute memory that is ... effect is that the screen-range is divided in ... level in MC routines for screen handling.
The ... is that two bytes (screen + attr) must be ... every pattern moved to screen. This is demanded by ... -
Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... of addresses for a screen memory plus an attribute memory that is 1 ... -level in MC routines for screen handling.[/QUOTE]
Sounds like ... hardware is that two bytes (screen + attr) must be read ... choose any width for your screen (in columns)
... -
Smooth (vertical) scrolling on ZX SpectrumI was just thinking about this. You know, you have systems like Atari 2600 or Sega SG-1000 that have no hardware scroll, but they have games that sti…
... scenery in situ in the screen memory, whilst drawing the game sprites ... -
New tool: SnapToTap R2it's basically a gui update to VSC. But it's now simpler to convert sna files into tap files. what is special about SnapToTap? it converts snapshots…
... first third of the screen, except when the "clear ... s set to default at screen memory. If you got courage ... a snapshot file into memory without corrupting some part ... up corrupting 400bytes of memory. Safest place is the ... memory, so it is first 400 bytes of screen ... -
50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... HL and then PUSHed into screen memory in sequence, according to which ... and to PUSH them to screen memory takes longer, so things slow ... to the contended way the screen memory works, the PUSH IX ... rendering each line of the screen, which still means using ... -
RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…
... code does with AF is copy from memory to registers....not the ... -
RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…
... code does with AF is copy from memory to registers....not the ... -
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... see now is black screen and cursor. Right now ... . How do I emulate screen display? Of course I ... resides in Speccy's screen memory into what appears on ... screen, but how exactly do I do it? Which memory ... memory mapped into colors/positions of pixels on a screen ... -
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... I see now is black screen and cursor. Right now, for ... 6912 bytes of the Spectrum memory map, starting from address 16384 ... is any mention of the screen layout in the latter at ... -
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... what resides in Speccy's screen memory into what appears on my ... s screen, but how exactly do I do it? Which memory addresses ... of memory mapped into colors/positions of pixels on a screen etc ... the speccy state including the memory and registers.
[ ... -
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... unlikely to ever point to screen memory. You're not executing code ... -
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... compared values from Memory Browser with my own memory dump after ... 16384 to 23295 is the screen memory, and 20704 happens to be ... the bottom line of the screen where the copyright message ... logs, or somehow observing the memory throughout the startup process ( ... -
Most colourful games?I just played [url=http://www.worldofspectrum.org/infoseekid.cgi?id=0001563]Earth Shaker[/url] and am fairly dazzled by the overload use of colour (t…
... write the result into the screen memory directly.
As for ... -rendered and copied to the screen. If anyone can get a ... screen grab from [I]Knight Lore[/ ... -
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... honest. Something is writing to screen memory to create those little yellow ... -
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... honest. Something is writing to screen memory to create those little yellow ... graphic isn't in the screen and can be possible what ... Smith uses the screen as temporary buffer when the ... suspect what PeterP redraws the screen at the end of the ... -
Address of monitor to load emulator files into real SpeccyI have a monitor/debugger that can load data over serial port really fast. Now I would like to extend it to load standard emulator files over the ser…
... bet is probably to use screen memory - put the essential non-overwritable ... those addresses when loading the memory image. Hopefully it'll just ... in a small amount of screen corruption when the snapshot starts ... -
Address of monitor to load emulator files into real SpeccyI have a monitor/debugger that can load data over serial port really fast. Now I would like to extend it to load standard emulator files over the ser…
... bet is probably to use screen memory - put the essential non-overwritable ... those addresses when loading the memory image. Hopefully it'll just ... in a small amount of screen corruption when the snapshot starts ...
