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[Asm] Is this nested loop faster than LDIR or a bunch of unrolled LDI's?Hi all. I'm learning Z80 asm on Speccy 48K, and to start with I decided to write my own "CLS" routine (without relying on ROM calls or LDIR) as a lea…
... /> ld a,BORDER_BLACK ; Select a color.
ld (SYSVAR_BORDCR),a ; Save ... ),a ; Change border color. Alternative: call $229B/8859 (Spectrum ROM function to change border color).
writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... 0xFE, among other things, identifies border color (three least significant bits). So ... ., then doesn't every keypress change border color/state of speaker etc. by ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... ., then doesn't every keypress change border color/state of speaker etc. by ... writing. The ULA maintains the border colour and the state of ...Hardware description - MB-02+ interfaceOn this thread will soon released info about MB-02+ idisk interface ( memory paging mechanism, list of ports, addressing, MB IDE, schematics, etc... …
... port #FE = multicolor in border area (change border color each 8 pixels = each ...
DMA DEMO - multicolor in border area
[IMG]http://velesoft ... cz/data-gear/dma-multitech/color/44.gif[/IMG]
... IMG]
[B][COLOR="Red"]Here is archive with ...Change PAPER and BORDER colours from machine codeHow do you go about changing PAPER and BORDER colours from machine code? I've forgotten the system variables for border and paper.
TV Pal, odd and even framesI have been researching, but haven't found any real interesting information on this subject, so far. What I mean is, since TV PAL signal is interl…
... by color burst signal/mark
- Line #3 Left white border
If we change border color to white again, while watching ... ]
It's clear that border color level just went up, and ...Fuse/SPIN vs Spectaculator border timingsHello, I'm trying to figure out at which moments the 48K ULA samples the current border color into its internal latch. To do that I wrote a small …
... 48K ULA samples the current border color into its internal latch. To ... few lines on the top border at specific CPU ticks and ...how do i change the color of the input statement "" and whatever is typed in it?the background ink doesnt seem to change it
the background ink doesnt seem to change itEmulator compatibility with real SpectrumHi emulator programmers... Having spotted for the last 6 months that my iPAQ is still missing a Spectrum emulator I started typing last tuesday - an…
... code to be able to change the border color from one line the ... another but since I have no border ...Fire Ruby - More HelpI cant pass the spikes in the fire ruby by lawrence creighton, can someone please help? [ This Message was edited by: welsh_brawler on 2003-08-08 21…
... over state 0
Default border color 0
The Illustrator used ... -duty; here's{6}20p change."
Message 18
change for{6}fifty quid."
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
... be used to set the BORDER color (bits 2, 1 and 0 ... screen then use a different color than the controlcharacter and read ... need arises, eg. a mode change made normally from the keyboard ...Groundbreaking gamesWhich games really broke new ground? I mean the ones that actually got around the hardware limitations of the Spectrum. For example: Aquaplane - f…
... worry about the border. Changing the border half-way through ... and still manage to change the border at exactly the right ... (V-blank) and syncronise border with actual pos. of ... in time between interrupt and border color change - maybe some simple rutines ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... of an initial BORDER 2, use BORDER r right after the ... game stops, the current BORDER color will clearly indicate the winner ... the bottom rows won't change color by default. Fixing this ... />
[CODE]
... THEN BORDER r: INPUT ': ...
[/CODE]
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... of an initial BORDER 2, use BORDER r right after the ... game stops, the current BORDER color will clearly indicate the winner ... the bottom rows won't change color by default. Fixing this ... />
[CODE]
... THEN BORDER r: INPUT ': ...
[/CODE]
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... ,0 means PASS. Maybe the BORDER color could indicate each player's ... of trying to update each change individually. It would be nice ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
[QUOTE=Digital Prawn;219819]The BORDER colour indicates the current player. ( ... ]
You could change the BORDER color to black at the end ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... =Einar Saukas;219863]You could change the BORDER color to black at the ... noticed that I can now change the first POKE value to ...Questions about the Speccy and it's emulationOut of interest, and to raise another interesting discussion, I have some questions about the Spectrum and it's emulation; 1) Is everything known ab…
... RAM in machine will not change overall speed at all. Only ... as RAM content, CPU state, border color etc. - let say 5 times ...Questions about the Speccy and it's emulationOut of interest, and to raise another interesting discussion, I have some questions about the Spectrum and it's emulation; 1) Is everything known ab…
... RAM in machine will not change overall speed at all. Only ... as RAM content, CPU state, border color etc. - let say 5 times ... (except for messing up the border effects in Starion and Paperboy ...+3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…
... to mention that the border changes colour every time ... border color is present when you press the RESET button? Does the color change ... every time you press it? Is it always the same color ... regarless of the color present when ...+3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…
... border color is present when you press the RESET button? Does the color change ... every time you press it? Is it always the same color ... regarless of the color present when you ...+3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…
... loop, just after changing the border color according to the faulty bank ... is exited). Is there any change?Sinclairean A3[B]Sinclairean[/B], a new ZX Spectrum emulator written in machine code for x86-compatible, OpenGL-capable computers. Features: [LIST] [*]Fast machin…
... version A14) or the current border color (like old versions) upon user ... /> Is there a way to change video mode?
You were ... found any function key to change it.
[QUOTE=Madonna ...Someone can help me to fix my Zx Spectrum?I did a video about the startup: [url]http://dl.dropbox.com/u/1566495/ZXSPECTRUM03.mp4[/url] I have replaced the ULA with a working one (same proble…
... does is to turn the border color to white with an ... the instruction that puts the border white.
I ... . With that condition, the border color is whatever value were stored ... will be executed and the border color will change.
Whatever ...Resolution & Memory Question ...Hi, I'm hoping someone with some experience writing an emulator, or a vast knowledge of all things Spectrum can help me answer the following questio…
...
Q: If border color is stored with just one ... ) to generate the border. Spectrum reads the border color every time when it ... new horizontal line of border. If we change this value during this ...'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…
to change the Border color we have the subroutine at 229B, but and to change the whole Paper color ? I see no subroutine.
thx'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…
... to change the border color just by out (#fe),a, and change screen color just ...Broken +3I have noticed that some members on this forum prefer to repair Spectrums instead of just buying another one from ebay. I would like mine fixed at so…
... border color change? If so, does it change always to the same color ... br /> If there's a border color change when you remove the RESET ... - The computer turns the border color into white and hangs : ... the computer doesn't change the border color, then it's either ...Broken keyboard due to broken ULARecalling csmith's thread about dead ULAs, a thread appeared in the Zonadepruebas (Spanish) forum regarding... a dead ULA, but only a partially dead …
... border color to cyan or red. The machine is still able to change ... the border color and issue sounds. So ...
