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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…
... the listing with the speed improvements in all its ... 48960 just below the stored screen
;stored picture must ... next
push hl ;save plasma table position ... br /> write:
res 7,d ;point DE to screen
Witchcraft: Nirvana, Bifröst and such[url="http://www.rgcd.co.uk/2011/10/buzzsaw-zx-spectrum.html"]"When considering this next to nearly every other ZX Spectrum game though, Buzzsaw is l…
... /+3 machines have the same speed but a different pattern of ... and your destination and use PUSH and POP commands to shift ... you're trying to write to the screen RAM at the same ... you just enough time to PUSH 16 bytes of data into ...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…
... write to video RAM at full speed. e.g. a PUSH instruction can write ... write one byte every 8T. So for example, a series of PUSH ... -state instruction the read or write occurs. It's all very ... the top line of the screen; synchronising itself with memory writes ...Screen PreloadersDid any of you chaps write your own spectrum games or applications. If yes , did any of you guys manage to get a preloading screen going..... Its …
Did any of you chaps write your own spectrum games or applications.
If yes , did any of you guys manage to get a preloading screen going.....
Its been a mystery to me , how to do this.ANN: Write Spectrum Games in C with speclib121 Announcing the sprite pack C library for the z88dk C cross compiler available from: [url="http://justme895.tripod.com/main.htm"]http://justme895.tr…
... ]
Now you can write games for the spectrum in ... is simple:
1. Write C program.
2. Run ... with the assembly API for speed comparison. The fourth is an ...BASin Release 6 available for DownloadHi all - It's another cut'n'paste from CSS :) I've been tapping away again, and seeing as a couple of people have recently seen BASin's latest bits…
... statement by statement.
Write BASIC programs in your favourite ... for convenience. Eventually, when the speed of the interpretation is set ... to true spectrum speed this will not be needed ... windows can't open off-screen, and are moved back into ...ANN: Spectaculator 5.1Spectaculator is a Sinclair ZX Spectrum emulator for PCs running Windows 95, 98, ME, NT 4, 2000 and XP. Spectaculator emulates the 16K/48K/128K/+2/+…
Spectaculator is a Sinclair ZX Spectrum emulator for PCs running Windows
95, 98, ME, NT 4, 2000 and XP.
Spectaculator emulates the 16K/48K/128K/+2/+2A/+3 Spectrums and plenty of
additional hardware.
Spectaculator is ...Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... + OR from preshifted sprites to screen.
...
Drawing to screen:
1. Work directly ... on the screen, and somehow synchonize your ... implemented a "push-many-timer" scroller, great fun&speed :)
...Does Screen Flipping work on a 48k Spectrum?On the other post it showed some basic code to flip the screen on a +3. Does it work on a 48k Spectrum. Can anyone show me the machine code to: Se…
... basic code to flip the screen on a +3.
Set the screen memory to default 16384
Write to backbuffer 49152 ...
Flip the screen memory to ...How to get Grahics to wrap vertically around the screen?I am using the following code to draw an image to the screen. First I use HL to contain ROW and COLUM I then call the MapScreenFunction As I draw m…
... draw an image to the screen.
First I use ... = display address
MapScreenAddress:
push de
ld a,l ...IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
...
PUSH AF
PUSH BC
PUSH HL
PUSH IX
; HL Contains Screen Address
; DE Contains Char ... and redrawn (Default 1, half speed 2 etc)
; ...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 …
... one area to another to speed up.
I ... /> DI
PUSH AF
PUSH BC
PUSH HL
PUSH IX
DOATTR:
PUSH HL
; CONVERTS A SCREEN ADDRESS TO AN ...Smooth Masked Sprites using fast page flip on 48k Part 2Ok, After all the suggestions in Part 1, which were all excellent (Thankyou), I opted on the following: I have 2 x 6k Offscreen areas (Yes, that's …
... another buffer with attributes, and write these when char is written ... /> ;DOATTR:
; PUSH HL
;
; ; CONVERTS A SCREEN ADDRESS TO AN ...TZXs speed loadingIs it possible to write a program that will play back tzx files at double speed, the way that TAPER can play back z80 files at 3000 baud? The Z802TZX…
... write a program that will play back tzx files at double speed ... can turn Z80 files into speed loading TZXs, but that's ...Help needed to speed up functionCan anyone help me to re-factor this code snippet. The "MAP" section holds information about which tiles go where on the screen (handled by another f…
... go where on the screen (handled by another ... A,(DE)
NOTDIRTILE PUSH HL
LD (HL ... LD (HL),A
PUSH AF
LD A ... /> DJNZ LOOP2
PUSH DE
LD DE ...Anyone help re-factoring a tile functionI had some excellent feedback for re-factoring my function that displays the colour for my screen tiles. Can anyone offer some help to improve the fu…
... the colour for my screen tiles. Can anyone offer ... As before when a screen is needed it is ... ". Can anyone offer so speed enhancements ?
ORG 50000 ... 16
PRTTILELOOPX PUSH BC
PUSH DE
LD ...Programming MC : first stepsIsn't nice to collect all kinds of short routines to help making the first steps into MC for everyone who never touched MC? What I mean is mostly th…
... to print a score on screen
A simple Randomgenerator (not ... have to be optimized on speed, just on userfriendly and understanding ...
random push hl ; save registers
push bc ; save registers ...What Spectrum games have yet to be bettered on any machine?What Spectrum games do you think are still better than any other of their types, on any machine? I mean, Turbo Esprit is an absolute classic, but I t…
... Infection responds almost immediately, so speed is no problem.
Manic Miner: The best single screen 2D platform game ever, even ... the programmers were forced to write to a very limted hardware ...Optimisation Needed! Is this the Fastest way to copy bytes from screen and back again?I have the screen address (say 0,0 i.e 16384) I want to copy 4 bytes wide by 32 bytes high from the screen to an area of memory. I then want to cop…
... :
di
push iy
; Draw ... ; Copy from store to the screen
ld hl ... 32
lp1:
push hl
ld ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... machines supported by z88dk. Write your game for the Spectrum ... sprites on-screen, aside from non-functional constraints like speed and available ... works. Eventually I will write up a more complete version ... it is not possible to write a general purpose sprite ...Problem with rotating procedureHi folks! I wrote a proc in z80 asm, based on: x' = x * cos (z) - y * sin (z) y' = x * sin (z) + y * cos (z) I used a precalculated table of sin a…
... suspect a circle on a screen, but it is not exactly ... ? It's not easy to write any of mult and div ... ,l
call mult21
push hl
ld h,a ...SimCoupe 1.0 released[size=-2](for those of you that don't read CSS)[/size] SimCoupe, the SAM Coup? emulator, has been updated to version 1.0. This major release adds ma…
... and Linux
- Added read-write EDSK support for copy-protected ... inserted at the start-up screen
- Added delay to ... turbo-load support, for accelerated speed during disk accesses
- ... external memory ports to be write-only [thanks Jiri Veleba]
Screen LoaderCouple days ago i find very interesting loader routine in ex Yugoslavia magazine "Svet Kompjutera" from january 1987. Authors of article, calls this …
... most impressive.
Uncompressed screen must be at 49152, routine ... /> LD HL,01343
PUSH HL
IN A,(& ... LD (IX+0),L
PUSH AF
RRR CALL RUT ... )
AND C
PUSH AF
LD A,(FL1 ... /> LD (DE),A
PUSH BC
LD BC,32 ...Deus ExSince we sometimes mention classic non-Spectrum games (and even the rubbish on the Commodore 64 ;) ) on this forum, how come we've never discussed De…
... , such as super strength, super speed, the ability to see through ... and rag doll physics helped push the PC versions required specs ... it - it has no split screen ability (for a multiplayer first ... person shooter, a split screen mode is as necessary as ...k7zx, a utility to load programs to Spectrum at very high speedk7zx is a windows program that convert .tap, .tzx , .sna and .z80 files to a wav file that can be played to a real Spectrum. You can down load it f…
... the Spectrum at very high speed from 11 kbs upto 38 ... fine on emulator. The maximum speed for a real spectrum in ... of file to code a SCREEN$ without attributes for testing porpouses ... ) They are simple SCREEN$ where you will *see* easily ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... ; character map in FONT
push hl ; save font address
push af ; store the carry ... />
; -------------------------------
; WRITE A CHARACTER TO THE SCREEN
; -------------------------------
;
How do i alter speed of dvd writingI use Nero for writing my DVD's but i have started burning a lot of coasters, i want to write the discs at a slower speed but can't work out how to …
I use Nero for writing my DVD's but i have started burning a lot of coasters, i want to write the discs at a slower speed but can't work out how to do it ?Dell Dimesion 8300 - Blue Screen of DeathOver the last couple of weeks I have been attempting to fix a Pentium 4 Dell Dimension 8300 belonging to a blind frienrd of mine. I kept getting the…
... /> I kept getting the blue screen of death at boot up ... the following:
Memort Write/Read error at **SOME MEMORY ... that be causing the read write errors and the blue screens ...Science Explained (Finally)!We believe that all the main physics principles can be explained away by the existence of tiny gnomes. Electricity: Inside cables there are hundreds…
... they are needed again. The screen is in fact an arrangement ... these gnomes travel at the speed of light-gnomes). A call ... , and swear loudly. They will push over desks and generally cause ...
