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Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve
... Address of the edit line buffer (follows BASIC program area)
CLS equ $0d6b ; Clear screen
CHAN_OPEN equ $1601 ; ... Open channel (A = 2, upper screen)
MAKE_ROOM equ $1655 ; Used ... 2 ; Open channel to upper screen
call CHAN_OPEN
later today......[IMG]http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs909.snc4/72268_172079126142549_100000213882336_641184_4866225_n.jpg[/IMG] [IMG]http://sphotos.ak.f…
... graphics, 7 coloured sprites on screen, a really large maze, and ... have a double buffer for the screen, the loading screen compressed in memory ...The Manic Miner intelligence testI've spent the morning watching various teenagers playing 8 bit games. One thing that really struck me is Manic Miner seems to be quite good at showi…
... directly to the screen instead of using a buffer, and it's ...The Manic Miner intelligence testI've spent the morning watching various teenagers playing 8 bit games. One thing that really struck me is Manic Miner seems to be quite good at showi…
... directly to the screen instead of using a buffer, and it's ... /> Me too. It updates the screen and animations (flicker free) every ...LCD interfacingHas anybody interfaced [url=http://mdfs.net/Info/Comp/LCD]an LCD[/url] to a Spectrum? I'm toying with putting together an interface, a small 32x8 dis…
... is to make a frame buffer, giving a byte addressable screen).Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... both would reduce the full screen update array requirements from 7680 ... some "times 3", and a buffer of 28*20*3 :). It ... memory: 1.5K
PutTiles buffer: about 1K
default SP1 ... sword, an extra sprite on screen, another animated monster or somewhat ...Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... memory: 1.5K
PutTiles buffer: about 1K
default SP1 ... sword, an extra sprite on screen, another animated monster or somewhat ... byte for a character on screen, maybe bit 7 or the ...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 ... 'gigascreen' flicker method - to buffer the previous frame and blend ... if you want to buffer the full screen memory outside the normal ... would mean you couldn't buffer screen updates any more. And ...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…
Linear buffer would be slower ... INC H). ZX Spectrum screen layout is not the most ... surely more optimal than linear buffer.
Probably ... is when you have screen memory arranged as 256 ... address space for ZX Spectrum screen (with attributes), and probably ...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=Shiru;503393]Linear buffer would be slower to draw ... (just INC H). ZX Spectrum screen layout is not the most ... surely more optimal than linear buffer.[/QUOTE]
It depends ...zx81 rf outputHi All I'm not sure if this is an appropriate forum for the zx81, however I'll ask anyway;) I've connected my zx81 up to a mid 90's color tv. I can…
... modulator circuitry with a transistor buffer like this: [URL="http://www ... a little distortion depending on screen contents (big black & white ... be.
Above transistor buffer (+ capacitor if used) fits comfortably ...zx81 rf outputHi All I'm not sure if this is an appropriate forum for the zx81, however I'll ask anyway;) I've connected my zx81 up to a mid 90's color tv. I can…
... modulator circuitry with a transistor buffer like this: [URL="http://www ... a little distortion depending on screen contents (big black & white ... be.
Above transistor buffer (+ capacitor if used) fits comfortably ...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…
... way the Spectrum's frame buffer works is a fundamental and ... high-res (for the time) screen that gives the impression of ... fewer bits when updating the screen. The tradeoff is the possibility ... clash. The ULA+ makes the screen look like it has (IIRC ...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…
... an attribute clashless resolution on screen -- I have toyed with a ... made the obvious additional screen modes (double buffer, double resolution 512x192, higher ... to display 8 pixels on screen. They missed one however -- a ...Platformer BAS file?Does anyone have an example of a platformer in BASIC? Specifically one that uses drawn sprites, etc.
... take away the screen and the system variables/printer buffer) is plenty ...Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... hits certain areas of the screen before anything's been drawn ... ) use a back buffer for the entire screen and draw / erase to ... frame, then display the alternate screen and draw to the default ... frame, then display the default screen and draw on the alternate ...Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... a buffer area and then blit those down to the screen as ...Contention: LDI vs LD (ss), rAccording c.s.s. FAQ: instruction LD (ss),r breakdowns as pc:4,[b]ss:3[/b] and LDI as pc:4,pc+1:4,hl:3,[b]de:3,de:1 x 2[/b] can anyone explain why …
... bytes it can copy to screen between T=14336 (end of ... , it simulates copy from back buffer to screen.
LDI ...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…
... had no problems with columnized screen.
[QUOTE= ... mcleod_ideafix;511425]The screen layout (not its size) is ... for example: having the screen divided into three horizontal blocks ... Even the linear frame buffer is better in this respect ...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…
... (and with the similar-sized screen the only difference) lies in ... blocks. Even the linear frame buffer is better in this respect ...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…
... deal (or just make bigger screen without the gaps)
buffer was laid out) and he ...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 ... level in MC routines for screen handling.[/QUOTE]
... 1) to make frame buffer as small as possible to ... at the columnized frame buffer. The high byte is ... choose any width for your screen (in columns)
< ...yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... keyboard, output to screen, cursor handling, scrolling, ... /> ;; ------------------------------------------------------------
;; initializes keyboard buffer
;; input
;; ... : .skip KBDBUFFSIZE ; keyboard buffer
_kbd_prev: .skip ...Big un-attr'd spritesHi all, I'm trying to find or come up with a generic sprite routine that can handle large (128x64) sprites. I've looked at DrwSprNC in the Sabrewulf…
"Sprite High, no limit" from "Your Spectrum" can handle extremly big masked sprites (31x24 Characters=248x192 Pixels), but still only character movement boundary and screen sized buffer.Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... 'm using the hidden screen to buffer it all so I don ... have to write to the screen progressively.
It's ... you page in the alternate screen to the top of memory ... good impression of some full-screen [I]Cobra[/I] layouts ...SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…
... , this one does the whole screen. The whole routine takes up ... , as pointed out below, no buffer is required.
[code]
SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…
... , this one does the whole screen. The whole routine takes up ... of those are for the buffer.
[/QUOTE]
Why ... you need a 256 byte buffer for a ZX Printer COPY ...SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…
... away with a 32 byte buffer. However, this was a ... manages to COPY the screen without using any buffer at all.
buffer, copy_buff, copy_3 and the preceding ... manages to COPY the screen without affecting the buffer and therefore works ...Rendering techniques in emulatorsI've been giving thought to the possibility of speeding up the rendering in Zero considering I've been putting it off long enough. My approach is c…
Spud screen display now runs nearly as ... />
Spud draws to the buffer on every write_byte, from the ... last t_state the buffer was written to up to ...Rendering techniques in emulatorsI've been giving thought to the possibility of speeding up the rendering in Zero considering I've been putting it off long enough. My approach is c…
...
[quote]
Spud screen display now runs nearly as ... /> Spud draws to the buffer on every write_byte, from the ... last t_state the buffer was written to up ... m writing to the buffer too except that it ... 's an intermediary buffer that's later blitted ...
