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Spectrum v Amstrad CPC rangeAmstrad seemed to be a rather late starter in the 8 bit micro computer race. I never really saw one outside a shop, only a few people at school had o…
... the top third of the screen has that big scoreboard so ... on Spectrum screens (because the screen memory is organised as three chunks). -
IM2 Loading on +3EHi there Speccy Guru's, As some of you know, I've spent a while building the ultimate image for +3e, it's currently at 6000+games and demos and i've…
... on a machine with contended screen memory (it requires too much data ... -
IM2 Loading on +3EHi there Speccy Guru's, As some of you know, I've spent a while building the ultimate image for +3e, it's currently at 6000+games and demos and i've…
... on a machine with contended screen memory (it requires too much data ... -
Resolution & Memory Question ...Hi, I'm hoping someone with some experience writing an emulator, or a vast knowledge of all things Spectrum can help me answer the following questio…
... /> Of course you are using screen memory all the time, when displaying ... anything on the screen.
If you ... conditions, use the rest of memory as well. That would be ... even place your code in screen memory :) It is used very rarely ... -
Resolution & Memory Question ...Hi, I'm hoping someone with some experience writing an emulator, or a vast knowledge of all things Spectrum can help me answer the following questio…
... that the screen has a fixed address in memory - you can ... at the bottom of memory, then the screen memory, then the rest ... ULA fetches the screen data from this particular memory chip (or ... variables stored just after the screen memory, then the BASIC program, ... -
Resolution & Memory Question ...Hi, I'm hoping someone with some experience writing an emulator, or a vast knowledge of all things Spectrum can help me answer the following questio…
... , use the rest of memory as well. That would ... even place your code in screen memory :) It is used very ... used 1/3 of the screen as a collisiontable.
... In my Videopacemulator the screen is set at 2/3 ... items are placed on the screen. When two bits are ... -
DivIDE and joystick interfaceWhich joystick interface works with the DivIDE and ZX 48K? I have TurboRAM but it works not correct or blocks DivIDE. Multiface One works with the j…
... requires a small amount of memory to be corrupted on loading ... keep the amount of corrupted memory to an absolute minimum and ... less safe than the screen, but keeps the screen looking nice and ... "[/b] - the + indicates to use screen memory instead of the stack). -
DivIDE and joystick interfaceWhich joystick interface works with the DivIDE and ZX 48K? I have TurboRAM but it works not correct or blocks DivIDE. Multiface One works with the j…
... requires a small amount of memory to be corrupted on ... keep the amount of corrupted memory to an absolute minimum and ... less safe than the screen, but keeps the screen looking nice and ... b] - the + indicates to use screen memory instead of the stack).[/QUOTE ... -
Code that doesn't autorun.I've just been trawling through a load of old C15s and I came across some tapes which have no basic loaders, and don't autorun when loaded. They just…
... likely load by default into screen memory, so you'd see it ... -
DivIDEo - streaming video on the DivIDEThis has been a bit of a personal holy grail for years and years, so I'm very pleased to announce the release of DivIDEo, my streaming video system f…
... contention is when writing to screen memory, and there's not much ... -
How to insert special characters in Basic and ASM ?Look the next picture. [IMG]http://img25.imageshack.us/img25/9479/scode.jpg[/IMG] I dont know how to insert these black and diagonal characters. No…
... done by direct writing into screen memory - it will be rather short ... -
How to insert special characters in Basic and ASM ?Look the next picture. [IMG]http://img25.imageshack.us/img25/9479/scode.jpg[/IMG] I dont know how to insert these black and diagonal characters. No…
... routine to show themm on screen.[/QUOTE]They don't have ... bitmap data copied to the screen, or drawn using a simple ... quoted above but straight into screen memory. -
How to insert special characters in Basic and ASM ?Look the next picture. [IMG]http://img25.imageshack.us/img25/9479/scode.jpg[/IMG] I dont know how to insert these black and diagonal characters. No…
... done by direct writing into screen memory - it will be rather ... routine to show themm on screen.[/QUOTE]
[QUOTE= ... bitmap data copied to the screen, or drawn using a ... quoted above but straight into screen memory.[/QUOTE]
...which ... -
'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…
...
The arrangement of the screen buffer is another of those ... )[/quote]
The screen buffer starts at location 64 ... print a text string to screen memory.
; The string to ... ; D = Y-coordinate on the screen
; E = X-coordinate.
testing if speccy is fully functionalHi, There is so much mention of T states but still confused. Does this mean if an instructin is out by a T-state or more then the speccy is faulty?…
... kind of indication even if screen memory is faulty (and therefore nothing ... can be shown on the screen). - for example, this one here ...Arkos TrackerHi all, I'm proud to present you my Windows-based Tracker : Arkos Tracker, for you to compose for Spectrum, CPC and MSX. It requires .NET 3.5 at lea…
... to be copied to the screen memory area prior playing?... (Im guessing ... the screen area being faster to access than other areas in memory ... stored elsewhere, without corrupting the screen area?... It would be nice ... HAS to be in the screen area (cos that will mean ...Loading screen recreation in HTML 5I have just developed a LOAD "" SCREEN$ simulation using the new canvas object in HTML. It is imitating the image bytes loading, as well as the attr…
... into ZX Spectrum screen memory has different effect on screen (top, middle, lower ... , short header (+file name on screen), pause, another lead-in, and ...Loading screen recreation in HTML 5I have just developed a LOAD "" SCREEN$ simulation using the new canvas object in HTML. It is imitating the image bytes loading, as well as the attr…
... into ZX Spectrum screen memory has different effect on screen (top, middle, lower ... , short header (+file name on screen), pause, another lead-in, and ... real SCREEN$, and you are right. Video memory is rendered on screen as ...Poli D?az reviewAnother review, this one is Poli D?az, El Potro de Vallecas, a boxing videogame featuring Spanish and European champio Poli D?az. I hope you like it!…
ZX Spin allows BMP, GIF and Screen memory Dumps.Poli D?az reviewAnother review, this one is Poli D?az, El Potro de Vallecas, a boxing videogame featuring Spanish and European champio Poli D?az. I hope you like it!…
... Spin allows BMP, GIF and Screen memory Dumps.[/QUOTE]
OK ...TIMEX 2048: anybody can convert GIGASCREEN?Hi. Timex 2048 has stable GigaScreen (no flickering at all). I know there are several big TC2048 fans on the Forum. Could anybody write a viewe…
... it almost twice as big Screen memory as Spectrum (6144 bytes of ...TIMEX 2048: anybody can convert GIGASCREEN?Hi. Timex 2048 has stable GigaScreen (no flickering at all). I know there are several big TC2048 fans on the Forum. Could anybody write a viewe…
... it almost twice as big Screen memory as Spectrum (6144 bytes of ... much as the Spectrum has "screen memory"; there are some details in ...Just for funJust for fun, imagine the Spectrum had a graphics mode where there were two attribute bytes per 8x8 block and each block had 2 bits per pixel choosin…
... it for a four-colour screen with no clash, like the ... scrolling when there's more screen memory to shift around, but it ... actually uses a character-mapped screen in this mode so you ...SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... code
* Renumber
* Full screen input e.g. INPUT AT ...
* FRAME command to sync screen output
* MOVE command to ... error
* Ability to store screen memory x,y,w,h
* ON BREAK
* CALL memory address or sub program
Just for funJust for fun, imagine the Spectrum had a graphics mode where there were two attribute bytes per 8x8 block and each block had 2 bits per pixel choosin…
... it for a four-colour screen with no clash, like the ... scrolling when there's more screen memory to shift around, but it ... actually uses a character-mapped screen in this mode so you ...SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... as some kind of weird screen memory layout) then it might struggle ...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. …
... POKEs the data in to screen memory to create the double height ... quite quickly and obviously the memory footprint is low.
How do you work with fonts on speccy?just curious really.. I know c64 workings, and obv. the spec you draw direct to screen.. on 64 , you'd make what would be equivalent to UDG.. and sa…
... code applications that access the screen memory directly, though, there are ... no particular tricks: the screen is bitmapped, and the ... arbitrary graphic data stored in memory, so printing double-height ... of font data to the screen rather than the usual ...How do you work with fonts on speccy?just curious really.. I know c64 workings, and obv. the spec you draw direct to screen.. on 64 , you'd make what would be equivalent to UDG.. and sa…
... the one on screen changes instantly. The Spectrum screen is bit-mapped ... , so you draw on the screen by copying character pixel data ... into the screen pixel data area.
screen memory is just one byte per ...Loading BASIC programs stored as "bytes:"Hi all, I have a question regarding loading BASIC programs, that I managed to save as machine code (I suppose) when I was a child, as a result of e…
... non-zero-length program in memory. At the very least, you ... massive Bytes: block spanning the screen memory, system variables, program data and ...
