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Emulation accuracy and how it affects softwareHi folks. I was thinking of bodging together a rudimentary Spectrum emulator myself, not as a competitor to the other emulators, but as an integrate…
... decoupling on the data lines to separate the ula ... is impossible to see screen bytes while reading unused ... not sitting around waiting for screen bytes (Arkanoid locks up ... all the Spectrum's data lines. The ts2068 only has ... on a few data lines so some bits may ... -
Emulation accuracy and how it affects softwareHi folks. I was thinking of bodging together a rudimentary Spectrum emulator myself, not as a competitor to the other emulators, but as an integrate…
... resistor decoupling on the data lines to separate the ula and ... it is impossible to see screen bytes while reading unused ports ... not sitting around waiting for screen bytes (Arkanoid locks up on ... bottom right corner of the screen firing away.
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Emulation accuracy and how it affects softwareHi folks. I was thinking of bodging together a rudimentary Spectrum emulator myself, not as a competitor to the other emulators, but as an integrate…
... resistor decoupling on the data lines to separate the ula and ... not sitting around waiting for screen bytes (Arkanoid locks up on ... bottom right corner of the screen firing away.
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Spectrum Emulator for Win XP to replace ZX32After years of non-updates, I've decided to finally replace ZX32 as my Speccy emulator of choice for a new one.. What can people recommend thats fre…
... you steel can see loading screen and lines on border, which gives ...Fairlight 2, once againOK, so I'm determined to make Fairlight 2 crumble and reveal its secrets. I've been running around in part 2 with a "go through all locked doors" POK…
... a clean run through the game, the door to the last screen ...Fairlight 2, once againOK, so I'm determined to make Fairlight 2 crumble and reveal its secrets. I've been running around in part 2 with a "go through all locked doors" POK…
... a clean run through the game, the door to the last screen ... falls down in the first screen of part 1 of F2 ...TZX in ROM...Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM? [ This Message was edited by: klingler on 2004-07-0…
... , making the first two lines of the screen a headerless loader and ...Strange layout of Spectrum video memoryHello, does anyone have an idea why the Spectrum's video memory has such a strange layout? I understand that a resolution of 256x192 is an easy mean…
Yes, swapping these lines should allow the ULA to ... editor. It repaints the whole screen after you go up or ...need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …
... /> Do all these calculations, including screen address at a non-speed ... only loop twice, every 8 lines.
Also another way ... is 0 you draw eight lines then adjust for crossing a ... is 1 you do seven lines - adjust screen address - then one more ...need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …
... /> LD DE,(SPRADR) ;taking precalculated screen address where to draw sprite ... is the counter for the lines in the sprite
... ,D ;draw the next two lines
AND 7
... /> SPRYLEN DEFB 32 ;number of lines in sprite (must be divisible ...need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …
... sprites are drawed directly into screen. then you don't need ... . as you go through the lines the condition is true 7xtimes ...maketzx problemsDoes anyone else have problems running maketzx v2.33 (with or without the GUI) on Windows 2000 Sp4? I've just changed my OS from Win Me where i've m…
... the number of lines of BASIC. For code and screen$ blocks, the ... .
For code and screen$ blocks, I load the data ...need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …
... DE,(SCRADR) ; taking precalculated screen address where to draw sprite ... divide by two and lines are drawn in pairs
LD (SCRADR),HL ;store screen address for sprite drawing
* Routine to Generate a screen address table
* SCRTAB must ...WOLFENSTEIN 2004 DEMOHello! I managed to find this in the Chaos Construction 2004 bundle and so far have tried mutiple emulators to get the thing working. Have any of you…
... in a black screen with a couple of lines filled with 'SGN ...Hisoft Pascal & FilesThe last ver of Hisoft Pascal in the Archives is 1.7m but only the manual for 1.6 is available. In the 1.6 manual it states that FILEs are not implem…
I was thinking along the lines of +3 disk access to ... H Pascal handles the spectrum screen etc. Particularly as i'm ...Hisoft Pascal & FilesThe last ver of Hisoft Pascal in the Archives is 1.7m but only the manual for 1.6 is available. In the 1.6 manual it states that FILEs are not implem…
... /> I was thinking along the lines of +3 disk access to ... H Pascal handles the spectrum screen etc. Particularly as i'm ...TAPER again...I'm now using a laptop with Windows 98SE, and TAPER doesn't work with that, which is really disappointing. I think the saying is 2You don't miss your…
... +ENTER to give the DOS screen full access to video? This ... attached!" or something along these lines. It doesn't recognise a ... 't go to the GUI screen. Bloody hell...
I haven ...TAPER again...I'm now using a laptop with Windows 98SE, and TAPER doesn't work with that, which is really disappointing. I think the saying is 2You don't miss your…
... for an option along the lines of "reserve IRQ and DMA ... attached!" or something along these lines. It doesn't recognise a ... 't go to the GUI screen. Bloody hell...
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3d Code... simple Anyone know where I can get some examples of 3d routines written in basic... I`ve done some googling, and come up with some source for PowerBasic or…
... it was `scrolled`/`appeared` onto screen.
The fact is ... faster, but due to the screen being 24.5K people don ... if it`s 5,000 lines of code...Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
You can clean it up a bit:
< ... were several glitches on separate lines in the same frame. This ... seemless copy with no screwed lines. This might suck up too ...Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
On 48k, can I copy 4k before next screen updateFollowing on from my thread at [url="http://www.worldofspectrum.org/forums/viewtopic.php?topic=6423&forum=11"]http://www.worldofspectrum.org/forums/v…
... 4k from Backbuffer to Screen in under 1/50th, ... copy back to front screen with no tearing/flicker ... you were actually updating the screen in a chaotic fashion, ... see shearing on several pixel lines as a result.
... 16384 gets drawn on screen. If you wait out ...Smooth Screen ScrollingHi Everyone, Any suggestions on what is the best way to do horizontal scrolling ie. in Zynaps fashion. I am working on a routine at the moment, whi…
... suggestions on screen scrolling. The last method is along the lines of ... with what is on the screen. I intend to check to ...Best emulator to use for type-insHi Everyone, I have loads of spectrum basic / mc code I had written when I was at school - some cool stuff, I'd like to type it in (from 4" silver p…
... /> Click on the screen and enter a few lines of BASIC to ...Why relativly bad colour on Spec compared to other 8bit?Why relatively bad colour on Spec compared to other 8-bit machines like the Master system or even c64? I understand the 8x8 block that you could hav…
... view because writing all those lines of assembler brings chills down ... if only using half the screen or something).
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games written using game writng programsI was reading through some issues of crash not long back and one article was about some 16 year old that wrote Frank n stein for the speccy(never pla…
... the lower part of the screen for someone who is testing ... a demo of plotting, drawing lines, circles and arcs, etc. I ...Can Anyone explain sprites in Jet Pac/Atic Atac etcJet Pac was 16k, and yet the sprites were impressively fast. I notice they had a slight flicker at times, but were notmally pretty flicker free. W…
... how the display draws the screen and how you draw the ... screen.
The display always ... out of sequence, i.e. lines 1, 8, 16, 24, 32 ...Most pointless type-in?I think it was one I saw, probably in Program Pitstop(which mag did that?), to evaluate a string as a full expression, a la the Beeb: spend hours typ…
... "Garden" - which drew some green lines on a yellow background, a ... themselves liberally all over the screen.
If I remember ...
