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Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …
... the bizarreness such as the border colour changing in Horace when any ... -
Pentagon RAM memoryDoes anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ? Looking at schematics it …
... ; the video timing/interrupt and border colour behaviour stills the one of ... -
Spectrum Playbasic EMULATORHi, Im new to the site and im writting a spectrum emulator in Playbasic :-o Its halfway complete. But i need help with emulating sound!? Anyone care…
... first three bits are the border colour. But at the mo i ... -
Spectrum Playbasic EMULATORHi, Im new to the site and im writting a spectrum emulator in Playbasic :-o Its halfway complete. But i need help with emulating sound!? Anyone care…
... first three bits are the border colour. But at the mo i ... -
ZX Spectrum 48K help and Hello :)Hello out there I am a long time admirer of the ZX Spectrum range of computers my first go at one was in the early 1980s with my dads ZX 80 now its …
... .
I suspect the border pattern won't be perfectly ... the ULA to change the border colour and the timing happens to ... -
Memory diagnostic toolIs there any sort of memory diagnostic tool for examining .Z80 files so I can easily identify large areas of blank memory? Scrolling through ZX Spin…
... routines. e.g. changing the border colour / setting up interrupts. only so ... -
New ZX 1k hires game : Q*Bert[url]http://www.sinclairzxworld.com/viewtopic.php?f=4&t=552&start=20#p11908[/url] Still working on improvement (i.e. multilevels), but this is the f…
... only had 1 bit to set the 'colour' of the field. I ... need 2 bits to set more possible ... alter the display of the colour fields to fit 2 bits ... -
Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
Anyone fancy writing these findings up for the [url=http://www.zxshed.co.uk/sinclairfaq/index.php5?title=Main_Page]FAQ[/url]? The Interface 1 / border colour one is interesting - why have we "hijacked" this one for "our" use? -
Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
... ]FAQ[/url]? The Interface 1 / border colour one is interesting - why have ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... the loader that changes the border colour after detecting the pilot. That ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... after detecting the pilot, the border colour changes from black/white to ... -
Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…
Recall that the Harlequin has one small design flaw: the border colour is updated from the border latch on every pixel clock, instead of every 8 pixel clocks. I wonder if that might affect the observed results. -
Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…
... design flaw: the border colour is updated from the border latch on every ... some of the "hi-rez" border effects on Pentagon - some of ... -
Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…
... , but it does change the border colour precisely when the out is ... to generate weird and wonderful border effects: [url]http://youtu.be ... -
Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…
... , but it does change the border colour precisely when the out is ... to generate weird and wonderful border effects: [url]http://youtu.be ... ULA does.
BTW: those border effects are impressive!! -
Possible dodgy +2 - resets when loadingSo I have a grey model +2 with a recently refurbed tape deck (new belts and cleaned heads). It might be a product of bad loading, but from what I ca…
... 's how you change the border colour for example) in such a ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... routine. You can now insert border colour changes or print statements into ... -
spectrum issue 6a oddityMorning everyone Bought a speccy (rubber key) from ebay in near mint condition - couldn't tune in on analogue particularly well so did the comp mod …
... to see if the colour system is set to "auto" (or indeed ... settings, try changing them. Set the colour system to PAL.
spectrum issue 6a oddityMorning everyone Bought a speccy (rubber key) from ebay in near mint condition - couldn't tune in on analogue particularly well so did the comp mod …
... /> I recorded voltages on each border colour:
0 ... 025V - 0.030V each border colour, so that seems (to ... fine.
Border 1 is still playing up ... wobbling like mad - border 0 still kills the ... display - border 2-7 are perfect!< ...What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…
... D
ld a, 15 ; set border
out (ula), a ; ... /> xor %00000011 ; blue/yellow border
ld c, a ; ... and %00000111 ; preserve border color
or %00001000 ; set MIC off
out (ula), a ; change the border
ZXSpectrum intermitent displayHello folks, I've got myself a ZX Spectrum (issue2) with a small display problem and am hoping folks more knowledgeable than myself can help me fix t…
... the menus/settings to manually set the colour system to PAL), the ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... bits
out (ula), a ; set border color
ld a, 127 ... D
ld a, 15 ; set border
out (ula), a ; to ... /> and %00000111 ; preserve border color
or %00001000 ; set MIC off
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... br />
; THE 'BORDER' COMMAND ROUTINE
org 0x2294 ...
border:
call find_int1 ; ... /> out (ula), a ; set border color
rlca ; shift ... calculator
call cd_prms1 ; set parameters
push bc ; ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... ula), a ; set border
ld a, 63 ; set I
... /> ld (bordcr), a ; set BORDER color
ld (attr_p), ... br /> exx ; alternate register set
push hl ; ... br /> exx ; alternate register set
push hl ; ...Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... that zx_border() could change the border colour without causing an audible click ...Collision Detection in SP1Hi, Does anyone have a well-documented example of using collision detection in spritelib. I've search WoS and Z88DK forums but no joy. Something wi…
... because the storage for the border colour is at a fixed absolute ...Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... every load, and the flashing border confuses the eyes. Screen$ are ... the 1bis system changes the border colour at three occasions. To my ... ,12 and 14, while the border colour in fact is stored in ... is not only setting the border colour, but is also pulsing the ...K Joy 2013About to order a third batch of Kempston Joystick pcb's. Again, I managed to get it smaller! I'll print the text on paper this time. [IMG]http://ben…
... few years ago where the border colour would change whenever you moved ... ?t=32270&highlight=joystick+border+colour[/URL]Why are multicolour engines only able to be made now?Now I'm no programmer, but, how come multicolour engines are only being created/designed now? I know there were Rainbow Graphics used in games in the…
... that the standard set for 'colour' Speccy games was set by Trapdoor, R ... though that the use of colour and graphics on Trapdoor was ...Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…
... won't need to set the colour attributes with this print routine ...
