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problem using FRAMES to generate 'random' numbersI realise the pros use bytes from ROM to get their random numbers, presumably because they want to use FRAMES to synchronise the printing and avoid s…
... Alcoholics Anonymous's 32x ldi pixel-scrolling method) to go left ... byte) and using the last four bits of frames to decide ... -
Four Minutes to Midnight compilationhi can we have an infoseek addition, please: [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=300220057075&ssPageName=STRK:MEWA:IT&ih=0…
... ;ih=020[/url]
Four Minutes to Midnight / Earthshock compilation ... -
8 pixel scrollingJust been playing Gunrunner (always forget how much I love this game, probs cos it's VERY hard) and wondered what other games use 8 pixel scrolling A…
... what other games use 8 pixel scrolling AND are decent to ... seemed that if an 8 pixel scroll was used then unless ... -
Fastest way to decide which pixel to paint in order to draw a straight line(after I saw "Bresenhams circle algorithm" in development forum, I decided to ask this in here) in fact, I want to accelerate a car towards a direct…
... move the car to next pixel. since target changes position in ... iteration, so a new path/pixel must be decided every iteration ... -
WTD: Original Speccy PSU and four feetHello. I'm after one of these for my 48K rubberkey. Also after four original feet. I was PMing someone about it but they disappeared without trace! …
... my 48K rubberkey. Also after four original feet. I was PMing ... -
Murkwood / Red ShiftI have a tape (no inlay) called "Murkwood" by "Red Shift" 1984 I can't find it listed anywhere, and I wonder if it is an expansion pack for a game a…
... inlay) called "Murkwood" by "Red Shift" 1984
I can ... -
Do you know any Spectrum game with small 8x8 pixel sprites ?Do you know any Spectrum game with small 8x8 pixel sprites ? I guess majority of games used 16x16 pixel sprites, like 99% of games :) I can not find…
... Spectrum game with small 8x8 pixel sprites ?
I guess ... majority of games used 16x16 pixel sprites, like 99% of games ... -
Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... "
You can see the four bytes are now at memory ... ; Debugger
To run these four bytes of machine code, enter ... 23296, which affects an 8x8 pixel block per byte, in logical ... -
Framerate of arcade gamesThe Golden Age of video games coincided with the birth of 8-bit home computing; this is why every computer of that era has a slew of really bad Pacma…
... move in any of the four cardinal directions, unless constrained by ... BASIC and using UDGs. The pixel-accurate sprite motion in the ... screen on Pacman, where the four ghosts chase Pacman from right ... in MAME. Pacman moves one pixel per frame, but pauses for ... -
Chris Morris's new film the four lionssending up the jihadists and extreme muslims great clip :) [url]http://www.guardian.co.uk/film/video/2010/jan/21/chris-morris-four-lions-sundance[/…
new chris morris film: Four Lions[url]http://www.guardian.co.uk/film/2010/jan/25/four-lions-chris-morris[/url] can't wait to see this. still watch the Brass Eye episodes. anyone els…
[url]http://www.guardian.co.uk/film/2010/jan/25/four-lions-chris-morris[/url]
can't wait to see this. still watch the Brass Eye episodes. anyone else a fan of this stuff? doesnt give it a great review but I still look forward to seeing thisLoss of innocenceI suppose my ZX Spectrum era lasted longer than most (although not sure longer than most of you on here). I received my first Speccy back in '83, and…
... think that you had to shift units for software to be ... RAM. A different colour per-pixel. I thought that I had ...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…
... block had 2 bits per pixel choosing from the 4 palette ... (twice as much data to shift around)? I'd love to ...Floating bus on 128K models[b]Background:[/b] i need run code with interrupt enabled but i need use stack instruction to maximize performance in copy/shift/mirror routines. dur…
... to maximize performance in copy/shift/mirror routines. during one update ... , $04ff ;initial C=$ff, repeat four times to do not miss ...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…
... the memory address of a pixel? So for example, if I ... wanted to "plot" pixel at screen coordinates 50,50 ...QChan - new four channel beeper music engineI've made a new beeper music engine, QChan. It provides four channels of tone plus interrupting drum channel, so total amount of channels is the same…
... music engine, QChan. It provides four channels of tone plus interrupting ...T/S 2068 & SpectrumBorrowing what you see below from the Timex Sinclair 2068 Beginner/Intermediate Guide, by Fred Blechman. It appears the T/s 2068 was intended to be …
... ]: The T/S 2068 has four "voices," three of which are ... ]: The T/S 2068 has four display modes:
[I ... on a line, and a pixel resolution of 512 by 176 ... has the same character and pixel resolution as Mode 1, but ...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…
50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K ...Small Machine Code Routines Which Maybe UsefulAs part of creating Flynn's Adventure in Bombland I created a lot of little routines to do all sorts of things. A lot of these I created based on inp…
... /> ; **********************************
; xy coords to screen pixel position
; **********************************
ld a ... /256 ; 7t - bring in screen pixel memory start
ld h ...
ld b,4 ; 7t - four lines to plot per loop ...Pixel Color IncorrectHello i am new to the ZX Spectrum and z80 assembly language. I am coding my first game and am having a small problem. I am trying to make the botom r…
... effect. The reason only one pixel is drawn is I have ... are wondering why only one pixel is drawn. Any assistance in ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
... a nice companionpiece to the four 16K Ultimate games (if I ... to stand along with the four 16K Ultimate games I think ... they're going in 1 pixel increments right now - which is ...Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…
... ;REMOVE THE LOWER FOUR BITS
RR A ;SHIFT A RIGHT
AND $0F ;REMOVE THE HIGHER FOUR BITS
CALL PRINT_HEX ;PRINT ... WITH BYTE
SRA A ;SHIFT A RIGHT (NEXT BIT TO ... BEING READ
SRL A ;SHIFT A LEFT
LD C ...The Spectrum Games Bible - Full Colour Versions - Four VolumesHello all! I'm selling the last four volumes of these books (1987-1988, 1989-1990, 1991-1993 and 1994-200x). These are also the full colour versions…
... /> I'm selling the last four volumes of these books (1987 ... -Games-Bible-Full-Colour-Books-Four-Volumes-/230662672255?pt=UK_VintageComputing_RL& ...Pixel Pimp, graphics utilityHi All, [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/pixelpimp.gif[/IMG][IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes…
... manipulating blocks (line fill, mirror, shift, orpaste, flip), data and attributes ...Find-Fill-Copy functions for BASICThere's not much going on here, so here's three m/code routines to provide some data manipulation functions which are otherwise slow to do from BASIC…
... )
will set the top four screen lines to green on ... ; ie. it effectively does a shift up or down as appropriate ...For Sale Box no.20Morning all, another box of odd sized things. Box 20 Odd Shaped Things Laser Basic ? Ocean IQ 2 x Superchess 3.5 ? CP Software Superchess 3.0 ? CP …
... /> The Tripods ? Red Shift
Rebelstar Raiders ? Red Shift
Zeus Assembler ... Software
The Trader Trilogy ? Pixel
Make-A-Chip ? Sinclair ...Collection Worth Saving?Hi, I've recently been reunited with my childhood collection of spectrum items - a boxed +2, original and a couple of Cheetah joysticks, loads of mag…
... the Year Full Price
Four Great Games Compilation Tidy Tony ... Turrican II, St Dragon, Night Shift, Swiv
Mega Bucks Budget ..."Pixel after Pixel", WoS contest for the best fan made loading screen$After reading the post where Ste?86 did a splendid fan loading screen for Pud Pud, I had the idea of creating a contest to see which is the best load…
... that this could be named "Pixel after Pixel" :)
OK, so ...Microhobby's Pixel A Pixel compoI've recently found out that there's been a graphics competition Pixel A Pixel held by Microhobby magazine, thx to Ivanzx for pointing this out in on…
... 's been a graphics competition Pixel A Pixel held by Microhobby magazine ...Tribute Pixel Art PosterIt's been a special day today so I chose today to unveil an update to my pixel art poster (one of the first things I posted here a long long time ago…
... unveil an update to my pixel art poster (one of the ...
