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50Hz on PC?Hi, do you know of any emulator for PC that can switch monitor refresh rate to 50Hz or closest possible and sync ZX interrupt with monitor refresh?…
... display the image on the screen exactly at the time the ... enough to maintain the sound buffer.
In my experience ... -
50Hz on PC?Hi, do you know of any emulator for PC that can switch monitor refresh rate to 50Hz or closest possible and sync ZX interrupt with monitor refresh?…
... are 3 screens in memory buffer: red, green and ... of previous frames on the screen as the picture updates. ... if you run your emulator screen at 100Hz, it looks ... As long as your screen's refresh rate is higher ... 's, you can just triple buffer the display.
Who has an Issue 1 or Issue 2 Spectrum??Do you have an Issue 1 or 2 Spectrum (ie machines with 5C102E and 5C112E ULA's) ??? You're help is needed! PLEASE SEE THIS THREAD: [url]http://www.…
... be sent through an inverting buffer). However, it did trigger on ... seconds to go across the screen on the .1s/div in ...Channel redirectionHi! I need help regarding the following problem. I want a BASIC decoder running on Spectrum, written in assembler. I found the great *LIST routine […
... screen. However, I need the ASCII BASIC listing in a buffer ... printer buffer is a bitmap buffer, not a character buffer. It ... INC HL ; Point to next buffer location
LD (bufindex ... ),A ; Store new buffer pointer
AND A ; ...another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... and being able to double buffer (and 48K programmers have lived ... C64 is moving a larger screen area (40 bytes across compared ... that for a second display buffer. The difference between the C64 ...another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... there is less calculation, but buffer size to be cleared/moved ... of those cells on the screen yes. Bitmap data takes 8 ... a fifth of the C64 screen idle.Any Atari ST fans out there?I've got a couple of Atari STs for sale (520 and 1040) but there's absolutely nothing at all with them accessory wise. They power on but I've not con…
... I could use all three screen modes (overscan went up to ... . Seems a little lame in comparison.New Laptop!!My department got me a new laptop this week. It's a Dell D530. I nice laptop it is too 2.0 Ghz Dual Core 2 GB Memory 110 GB HD (could be bigger…
... approve. Then it darkens the screen and prompts you again with ... standards. Pretty bad when in comparison to other new OS'es ...How to add speech to a program?Is it possible to add speech to a machine code program? And with possible I mean with relative ease. Hardware could be 128k. Is there some utility …
... ]
You still load the SCREEN$ header could be removed.
buffer which was where the code ...How to add speech to a program?Is it possible to add speech to a machine code program? And with possible I mean with relative ease. Hardware could be 128k. Is there some utility …
... ]
You still load the SCREEN$ header could be removed.
buffer which was where the code ...help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…
... at a time, not the screen address one double byte at ... the right order on the screen starting one pixel line higher ... add 4 cycles each in comparison to regular push/pop). The ... doesn't even scroll the screen in pixel row order so ...BBC microI was often made aware by people at the time that the beeb was the "best computer in the world." Even my next-door neighbour ( who was a bit of a co…
... and connectors there are in comparison with the Spectrum. This really ... code in parts of the screen memory that weren't being ...Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…
... took a new in-game screen for it too).[/QUOTE]
comparison. I have learnt that the ...48K games that don't work on a +2Not sure if there is already a thread about this but recently I've noticed some old 48K games will not run on my +2 - even in 48K mode. Examples are…
... 2) Software assumes the printer buffer is available for code. In ... ULA as it displays the screen. Some games (Arkanoid is ... It also has slightly different screen timings. Some games that ... Compare LOAD !"quick" SCREEN$ with LOAD "m:quick" SCREEN$. This will only ...Head over Heels on the C64Dunno if this' a good place to bring this up :D I've been comparing Head over Heels versions and the C64 version is way inferior, everytime there's…
... a lot of games in comparison to the speccy versions, but ... than the speccy version (the screen had speccy dimensions though, causing ... the colour palette and even screen mode to make it a ... the lower part of the screen. Of course on some screens ...Head over Heels on the C64Dunno if this' a good place to bring this up :D I've been comparing Head over Heels versions and the C64 version is way inferior, everytime there's…
... 's three spiders on the screen but is just as fast ... I think is a better comparison and for sure the C64 ... that is also a better comparison when talking about doing things ...Spectrum to Amiga emulationIs there an emulator I can install on my Amiga that will play tzx and tap files from the WOS archive? I cannot find one but wonder if anyone here can…
... ), using a larger audio buffer, running in Screen mode instead of Window ... try ZXAM-AGA in custom screen mode. 48K-only and wont ...'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…
... />
Yes, the 2nd screen (Screen 1) is in Bank 7 ... course be overwritting the first screen and sysvars etc.
... that you can LOAD SCREEN$ + a 2nd attribute buffer and load both ... different colours througout your loading screen without the overhead of ...Any BBC aware Specchums out there?After the UK101 and VIC20 emulators I've moved my sights onto emulating a BBC computer. This emulator will be different though in that it will be a Z…
... must consider writing to the screen, printer, RS423 and file devices ... "write char, read char, write buffer, read buffer, seek to position, etc ...VIC 20 emulation on the SpectrumI'm sure most people are aware of the my attempt at bringing the full Commodore experience to Sinclair users with the "Twenty Commodes" program. It e…
... nybbles, dedicated to the colour screen map.
All this ... map seem very simple by comparison. :DVIC 20 emulation on the SpectrumI'm sure most people are aware of the my attempt at bringing the full Commodore experience to Sinclair users with the "Twenty Commodes" program. It e…
...
; Clear the screen
LDA #147
JSR ... TAY
; Is screen at new position empty?
GAMEOVER
; clear keyboard buffer
LDA #0
STA ... ; draw the commode on the screen
LDA #28
...Filmation... how does it work?Does anyone know exactly how Ultimate's Filamtion works? There's an explantion of the room layout and graphics at [url]http://retrospec.sgn.net/users…
... theory is essentially a dirty-buffer, you can use that in ... cell which covers the entire screen, down to a list for ... each character on the screen - 768 entries each with up ...Filmation... how does it work?Does anyone know exactly how Ultimate's Filamtion works? There's an explantion of the room layout and graphics at [url]http://retrospec.sgn.net/users…
... box (into a
small buffer the size of the box ... used a 256 byte
buffer) in order from the back ... area from the small buffer to the screen.
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The list ...VIC 20 emulation on the SpectrumI'm sure most people are aware of the my attempt at bringing the full Commodore experience to Sinclair users with the "Twenty Commodes" program. It e…
...
; Clear the screen
LDA #147
JSR ... />
; Adjust lsb of screen pointers
LDA #242
; Adjust lsb of screen pointers
LDA #21
; clear keyboard buffer
LDA #0
STA ...alternate BASIC ROMI've come up with a few patches to the standard ROM to make it use the 128 shadow screen by default. The ROM is reorganised as follows: RAMTOP is se…
... [quote]Does basic page the screen in/out when it needs ... the moment. Currently the screen is permanently paged in at ... normal location, uses the printer buffer to store additional system variables ... disc (which would overwrite the screen). The 128 editor ROM ...Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... routines) to move it from buffer to videoram. You would need ... per x movement and one buffer for 8 pixels movement. Buffers ... />
LD A,32 (max. screen width)
SUB width
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... be printed fully on the screen, common problem for catalogue system ... string, ldi the text from buffer to screen, scroll up one string ...Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... be printed fully on the screen, common problem for catalogue system ... string, ldi the text from buffer to screen, scroll up one string ... recommend to print all into buffer and LDI only visible area ... fact start pointer into your buffer. I think for system prog ...Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
I wish to have a smooth visible scroll :) With HALT after each pixel string scroll. Like in demo scrolls. That's look nice. So printing in buffer and then moving it cannot be used. I need real screen scroll.Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... buffer and then moving it cannot be used. I need real screen ... from buffer
2) scroll screen and get new pixels from buffer.
ld a,(buffer) ; this is left border, ==> ... out
rrca
ld (buffer),a ; get CY out
