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Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... not 0-7 then skip to next
push hl ... a map of which lines to mask or ignore
call ... of D if it needs to INC
ld a,e ... /> res 7,d ;point DE to screen
ld (de),a ... -
Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... at a loss as to how to improve upon it, though ... table
;fade in the screen display file
;
... - 48960 just below the stored screen
;stored picture must ... /> res 7,d ;point DE to screen
ld (de ... -
Proportional-width fontsFor reasons that are still not quite clear to me (because I’ve always loved typography and design,) I never bothered to write a proportional-font rou…
I understand.
I made my own 4x5 font and routine for writing to screen as well. Part of it used in my Tritone Demo in my sig. -
Proportional-width fontsFor reasons that are still not quite clear to me (because I’ve always loved typography and design,) I never bothered to write a proportional-font rou…
[quote="FrankT;931359"]
I made my own 4x5 font and routine for writing to screen as well. Part of it used in my Tritone Demo in my sig.[/quote]
Hey, that’s neat! Loved the music. The percussive tones in Tritone are very nice. -
Proportional-width fontsFor reasons that are still not quite clear to me (because I’ve always loved typography and design,) I never bothered to write a proportional-font rou…
Do you write direct to screen memory? Would it be quicker to write to a linear part of memory and then copy to the screen? No idea, just thinking out loud.
Paddy -
ForumsWe are aware that the forums have suffered with the CPU fix a few weeks ago. Fortunately, we were already working on new forums that will address the…
... to get to screen that lists them. The list being able to be set to ... .
[*]A specific page/screen to manage saved draft posts.
to a thread. The current forum ... a touch screen, it's far too easy to accidentally activate ... -
ForumsWe are aware that the forums have suffered with the CPU fix a few weeks ago. Fortunately, we were already working on new forums that will address the…
... to get to screen that lists them. The list being able to be set to ... .
[*]A specific page/screen to manage saved draft posts.
to a thread. The current forum ... a touch screen, it's far too easy to accidentally activate ... -
Can an emulator send and receive via a PC's USB port?Interesting little question arises out of a conversation today with my son who is taking a Rockwell automation course. His latest test was to write …
... , and these can be set to a steady state by BASIC ... emulator, see if you can print to a real world printer via ... -
Does anyone still use standard cameras anymore?I was watching a YouTube video recently on obsolete tech and one was about old 1990's cameras and it got me thinking, does anyone still use cameras a…
... doing your photos, rather than print them individually and then slot ... with a place that can print to the edges of a sheet ... adding hideous and superfluous borders to everything.
I had ... such a coarse median filter to the image that the pictures ... -
whats the easiest way to store a screen and then display it?so it can be called by a randomize usr, etc?
That's what I would do too, a quick LDIR to copy it to screen memory. :) -
printing to the screen using pokei remember there being a way to print to the screen using pokes, which would allow you to print a character anywhere in the 175x255 matrix. can anyon…
You can POKE directly to screen RAM, but you ... POKE to the attributes area of screen RAM (to set ... screen data. It is not likely to be what you expect...
To ... see what I mean, either load a loading screen, ... code]10 FOR a=16384 TO 22527
20 POKE ... -
printing to the screen using pokei remember there being a way to print to the screen using pokes, which would allow you to print a character anywhere in the 175x255 matrix. can anyon…
... problem easily by reading the screen byte, ORing it with the ... ), a ; write UDG pixel byte to screen
[/code]
Instead ... /> ld b, (de) ; read existing screen pixel byte
or b ... /> ld (de), a ; write new screen byte back
[/code] -
SpecIde: Interlaced modes.Hi! Try this: SpecIde --plus2 --flashtap --fullscreen --average mescaline_zx_128_plus2.tap (Source code and binaries in https://github.com/Mart…
... I get a better fit to screen, a full-colour stable image ... binaries, so if you want to give it a try... -
PLATOTerm for IRATA.ONLINE for ZX SpectrumHello everyone, I've been holding off on any formal announcement until the terminal actually functioned, but, now that there is a version of PLAT…
... . Pressing EXTEND 9, will print the screen. The screen turns magenta, during this ... -
Reading DEFB for backgroundsHi all I suppose the question is kind of silly but I'm a completely newbie with assembler :-S I'm drawing some side backgrounds with ZX Paintbrus…
...
ld (hl),a ; write to screen
inc hl ; next character ... /> ld a,l ; move back to start of line
sub ... -
Reading DEFB for backgroundsHi all I suppose the question is kind of silly but I'm a completely newbie with assembler :-S I'm drawing some side backgrounds with ZX Paintbrus…
... of code. Attribute address to screen address, and screen address to attribute address.
Printing text, part MMXIIXI'm pretty sure there's been a zillion threads about this already, and I don't think it's the first one by myself either, but here goes. Proportiona…
... = aS -> copy to local variable
; - ...
; calculate pointer to screen, yofs from table
... /> ; "or" the pixels to screen
ld a,(hl)< ... bc ; move forward in screen
ld a,(bc ...Z80, and 6502, in comparisonI was wondering about how each of these compared in terms of performance. The Commodore 64 had a 6502 @ 1MHz, and graphics processor VIC which took …
... quote]
You have to be very careful using ... BASIC to compare different machines. ... do all the text printing to screen, graphics and sound). ... Compare this to the ZX Spectrum 16k ... did the bare minimum to port over ZX Spectrum ...Drawing LinesHas anyone got any experience of coding a Bresenham line drawing algorithm on the Speccy? I've had a go and I find the algorithm has quite a few s…
... it's a bit wasteful to have two buffers, but clearing ... the other gives me something to do in the top-border ... the interrupt and the copy-to-screen.
I'm ... you've listed is going to be quicker than POP ... it going to copy 2/3 of the screen ahead of ...Drawing LinesHas anyone got any experience of coding a Bresenham line drawing algorithm on the Speccy? I've had a go and I find the algorithm has quite a few s…
... it's a bit wasteful to have two buffers, but ... the other gives me something to do in the top- ... the interrupt and the copy-to-screen.[/quote]
With a ... it going to copy 2/3 of the screen ahead of ... time from "ld ix,copy_addr_table" to the next op after "jp ...Which emulators can change machine type / hardware without reset?Which emulators can change machine type / hardware without machine-reset? I think WinZ80 v4 by Gerton Lunter can do e.g. change running emulation …
(Win)Z80 for sure. Useable in DOSBOX too.
I often add Interface1 and redirect RS232 to files so I can print to textfiles.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…
... level code to push these to the screen.
... ; Load screen address to push to
; Self modified push to screen
... buffer: defs 15 ;
;
ld hl,sp ; Move to ... (spstore2),hl ; Store last screen positon
jp fl_bus ; ...Raster effects - quick questionHi Guys Just a quick question regards what the ULA is doing as its drawing each scan line. Assuming the beam has finished drawing the border, am I…
... is it correct to assume it's possible to change the Spectrum ... interrupt driven routine that syncs to screen refresh, then use t-states ... to estimate position of beam, etc? ...Raster effects - quick questionHi Guys Just a quick question regards what the ULA is doing as its drawing each scan line. Assuming the beam has finished drawing the border, am I…
... interrupt driven routine that syncs to screen refresh, then use t-states ... the 128K models due to having 2 separate screen buffers; just use ... not possible to use the full width of the screen in 8x1 ... width of the screen.
Overall it is, to a good ...How do emulators make code appears as running at 3.5Mhz?Decent Z80 emulators on github return t-states after executing an instruction, giving you the ability to emulate Speccy relatively well. But there ar…
... ray, send the whole bitmap to screen when the timer ticks. You ... instruction either - only those writing to screen behind the ray. In this ... case, fill the bitmap to the current ray position from ...How do emulators make code appears as running at 3.5Mhz?Decent Z80 emulators on github return t-states after executing an instruction, giving you the ability to emulate Speccy relatively well. But there ar…
... ray, send the whole bitmap to screen when the timer ticks. You ... instruction either - only those writing to screen behind the ray. In this ... case, fill the bitmap to the current ray position from ... . It is what I needed to understand drawing, and, partially -- ...How do emulators make code appears as running at 3.5Mhz?Decent Z80 emulators on github return t-states after executing an instruction, giving you the ability to emulate Speccy relatively well. But there ar…
... ray, send the whole bitmap to screen when the timer ticks. ... instruction either - only those writing to screen behind the ray. In this ... . It is what I needed to understand drawing, and, partially -- ... This is usually good enough to get a reasonable response. And ...Which coin-op classics still need a great Speccy conversion?Most of my faves have been done in the last couple of years - Turtles, Kung Fu Master, Rally-X, Mr Do, the Space Invaders and Pac-Man emulators, the …
... was Ultimate's...um...homage to it :) I also remember being ... being a Jetpac straight-to-screen method over to a dirty chars backbuffer ...
