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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 …
... platforms etc.
BUFFER (6k):
This ...
; Fill Back buffer with a bright stripy pattern ... 8
RLA ; double value (include mask)
... 128, 64
DEFB 128, 64
DEFB 128, 64
DEFB 128 ... -
ZX Printer emulation in 128 modeFuse doesn't emulate the ZX Printer in 128 mode. ZX Spin does, but it doesn't run under Wine. Thankfully vbSpec does. Although the print buffer isn'…
... emulate the ZX Printer in 128 mode. ZX Spin does, but ... .
Although the print buffer isn't cleared after a ... -
Hacker 128 barcode etcHiya! I've just converted the 48k and 128k versions of Hacker into TZXes and noticed that some of the info was incorrect/missing here on WoS. 04787…
... , Speedlock 2
The 128 version is exactly the same ... to load it on a 128 machine (like the Speedlock 1 ... the 2nd inlay scan (the double tape pack).
Rich ... -
So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…
... by. If you want to double it, you divide by 2 ... will turn on the output buffer and will mean the pin ... -
The Double (Footy Management Game)Hi All I'm new to the forum and wanted to talk about The Double - the classic Speccy 128 game which I believe was the best footy management game eve…
... to talk about The Double - the classic Speccy 128 game which I ... instructions located on the THE DOUBLE EDITOR but I cant work ... -
Rubbish 48K versions. Is Double Dragon 2 the worst?Okay, so obviously later in the Speccy's life, the 128K machines became dominant and most software was written with them in mind. Up until about 199…
... then there's Double Dragon 2. The 128 version is pretty nice ... -
Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…
... /> [CODE]
; Bi-Colour Scrolling-Buffer Game Engine for Four Player ... =pixel row table, c>128 so dec bc will not ... -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... you could draw to one buffer and then just have the ... a little more. We used double buffering like that on the ... second display file in the 128 though. -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... br /> [quote]
The 128 should have included a microdrive ... anything with since the 128 presented an opportunity ... . A double buffered video mode (as the 128 got and ... hardware with a small buffer and not the ... hardware with a small buffer. Polled or interrupt ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... anything with since the 128 presented an opportunity ... 2. A double buffered video mode (as the 128 got and ... hardware with a small buffer and not the ... hardware with a small buffer. Polled or interrupt modes ... the interface with the 128 would have established ... -
Ways to use double buffering in basicI was meddling with woody's print stream code where you can print characters at any pixel location on screen. I was playing with 12 sprites, very ann…
... already shown frame into a buffer?
We gotta find ... copy that area into screen buffer.
[/QUOTE]
The ... worked, this allowed to do double buffering using only Basic instructions ... , it does not work in 128 nor in plus3dos. At least ... -
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... message printed double-width but ... else {
blank_counter = 128;
scroll_mode = 1;
... ////////////// Blit the stuff from buffer to screen ////////////////
////////////////////////////////////////////////////////////////////
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... a new double-width character-half ... )) {
blank_counter = 128;
scroll_mode = 1;
buffer to screen ////////////////
////////////////////////////////////////////////////////////////////
Question about digitized sound and videoI searched the forums and couldn't find the answer, so here it goes. Regarding digitized sound: I remember reading an article long ago about a vid…
... have a table of (say) 128 LDI instructions (or actually INI ... use the 128's second screen as a back-buffer, so the ... . I started work on a double-buffered version (where it stores ...A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…
... /> ; line number either 64 or 128, therefore just move up by ... /> ; line number either 64 or 128, therefore just move down by ... -191
add hl,hl ; double it to get word offset ... screen line in the scroll buffer
db 0,0,0 ...Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... /> (1) use a back buffer for the sprites and erase ... /> (2) use a back buffer for the entire screen and ... ) (128K machines only) Hardware double buffering. That is, display the ... and draw to the 128's alternate screen ... far the fastest. The 128's alternate screen is ...IN or INKEY ?just curious which is better to use.. I have a menu done.. and use 6/7 to go up down it + space to cycle thru the options (using inkey).. obv. if I w…
... the value of the keyboard buffer (or along them lines) ?
double high fonts on 64 for ...A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... introduce some double buffering possibilities (so that the attribute buffer, eg, is ... loop to synchronize the raster (128 and 48 models); I have ... you are using for 48/128?
I'm just ...A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... introduce some double buffering possibilities (so that the attribute buffer, eg, is ... loop to synchronize the raster (128 and 48 models); I have ... you are using for 48/128?[/QUOTE]
The delay ...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…
... = the start of the printer buffer. If the attributes copy is ... 'll overwrite the printer buffer ( fatal on the 128 ), all of the ... now, I've checked and double checked everything, the attributes are ...P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... 128 model. So why copy from buffer to screen when you have double ... screen and dont bother with buffer. So the cardinal question is ...P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... 128 model. So why copy from buffer to screen when you have double ... screen and dont bother with buffer.[/quote]
I value ...P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... 128 model. So why copy from buffer to screen when you have double ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... inc e
inc e ; double stride through data
inc ... ; point DE to the shift buffer
ld de, shiftdata_lbuff
ld b, 128 ; clear attribs in 128 * 3 pushes
... #17e0
; 16 byte buffer for drawing graphics which are ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... ; increment data pointer twice to double stride
inc e ; ... ; increment data pointer twice to double stride
inc e ; ... br /> ld b, 128 ; clear attribs in 128 * 3 pushes
; 16 byte buffer for drawing graphics which are ...
