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border graphics / text tricks ?just curious if it was possible.. I mean in basic, when you scroll a program you have "scroll ?" in the lower border? is there trickery that you can…
... basic, when you scroll a program you have "scroll ... br /> [CODE]
let a$=chr$ 16+chr$ 2 + " ... chr$ 12 + "AT CHAR":save a$
[/code]
the ... place text at specified place on screen. after reset, the "Program ... second line, so AT character can be used to ... -
How do you start?ok just humour me, ive always wanted to code but never got round to it apart from the real basics ie:- 10 print "hello" 20 print 30 goto 10 i coul…
... move a character left and right and/or up and down on the screen ... without leaving a trail. Maybe move on to having a ball ... screen, or...
- Write a Z80 routine to plot a pixel on the screen ... -
ZX81 more powerful than the Speccy?I have been reading ?The ZX Spectrum Book 1982 - 199x? by Andrew Rollings (thanks again, Andrew - it?s a great read!). There are some comments in the…
... are some impressive tech demos on the scene, but with ... Bobs working on an 81 Dominetris, and probably ... Spectrum, but having a character mapped display, rather than a full pixel frame ... allow you to update the screen a lot faster. But the amount ... -
Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …
... shit out of Double Dragon on MAME (with the DIP ... and 2 frames for a 'move' (although on a Spectrum you could ... The 'general' sprite size for a character is 64 pixels in height ... to re-create this on the Spectrum at 48 ... can i.e. by finding a tile that is used for ... -
Cheril of the Bosque (The Mojon Twins, Spectrum 48k)A brand new game from the Mojon Twins! In the Badajoz jungle lives Cheril, a common girl, just like every other girl of her age. She eats cucumbers,…
... 's only in the loading screen! ;) :lol:[/QUOTE]
... if you could expand on this game slightly, ... things. Bump into a character and they tell you ...
Always wanted a Gameboy Zelda type game, this ... similar, just expand the missions a bit more.
< ... -
Cheril of the Bosque (The Mojon Twins, Spectrum 48k)A brand new game from the Mojon Twins! In the Badajoz jungle lives Cheril, a common girl, just like every other girl of her age. She eats cucumbers,…
... ]And you were right. The character/game name is an in ... not jungles. It's just a pun on "Jill of the Jungle ... to collect all 13 acorns on my second go.. :-o:- ... o. On my first go I got ... Lala Prologue yet though, am finding that one a bit more of ... -
Speccy games programmingI've got a question. Where games written in pure machine code or was it a level higher with Assembly language being the choice? I always thought it…
... highscore text at a specific location on screen. There are different screen modes, different ... position text at specific positions on screen. Anything that does this is ... C there is a separation between the character output and the attached ... -
Skooldaze and Back to Skool on the CPC?Did Skooldaze and/or Back to Skool ever come out on the Amstrad CPC? Or on any machine other than the Spectrum or C64? I'm curious to see any differe…
... Skooldaze Too on the CPC? (I know this is a Spectrum forum ... without resorting to a Spectrum emulation, 32 character wide screen. The issue I ... -
shifting spriteshi. have anyone experience with shifting sprites by table ? some neat tricks ? i don't want to see complete code (really don't want, it trashes thr…
... DD have on screen at once?
I use a dirty buffer ... it's gonna be flip screen rather than scroll, right?)
screen, so I can update 128 character cells a frame) with ... drawing, copying from backbuffer to screen buffer] then in the ... -
Skooldaze and Back to Skool on the CPC?Did Skooldaze and/or Back to Skool ever come out on the Amstrad CPC? Or on any machine other than the Spectrum or C64? I'm curious to see any differe…
... Skooldaze Too on the CPC? (I know this is a Spectrum forum ... without resorting to a Spectrum emulation, 32 character wide screen. The issue I ... the text..
As a CPC user, I would be ... -
Platform Game Designer 2Right, with Telly Heroes out of the way, I've decided to have a second attempt at this. I've ditched the old PGD2 source, and started again with the…
... later. If you walk from on screen to another it's ok ... building the screens up character square by character square. Checking everything is ... quicker to build up a screen and reduces the memory ... editor/assembler the other was a layout designer which imported the ... -
How do you destroy an enemy or object?Hi guys I allways wanted to know this, but how would you go about making and destroying enemies in basic or any language? What, do you use a huge ar…
... enemy is would be a character in a print statement of some kind ... detection would be by attributes on the screen, and the enemy would ... by replacing the graphic with a space. I think that's ... -
Spectrum 2-3 times more powerfull than MSX?![url]http://www.youtube.com/watch?v=2-kI0urN9tI#t=8m18s[/url]
... I/O-oriented VRAM is a FAIL, character-oriented playfields and hardware ... the screen memory as a character-map or the character memory as a full-screen bitmap ... that (and 1x8 attributes) done on a Speccy. But I'd still ... -
SPIN 0.7s uploaded; the crowd goes wild......with bug reports! Get it here: [url]http://sites.google.com/site/pauldunn/ZXSpin_07s.zip[/url] New in this version are RPI filters and Overlays …
... type I only get symbols on screen and graphics instead of ... seems to be just in character coding.[/QUOTE]
... all the various shift keys on your keyboard: both SHIFTs, ... uses Scr Lk as a "graphics mode" key in ... you then it really is a bug, and I'm ... -
My first platformerHi all! How do you do? Been lurking here for a while, but never had the courage to join the forum. :) The Speccy was my first computer, so I've alw…
... graphic actually straddles an additional character when drawn. Eg, if you ... following diagram which shows a single char drawn on screen. The left char ... /> The engine needs to draw a complete character square. In the right ... -
New member here. And a spider! :)Hello everyone. My name is Sekrets. I'm quite a lonely individual, searching for a digital home where I might find fellow speccy enthusiasts to adopt…
... br /> 18 ; exit : hl = screen address
19 ; uses : ... that dfloc function for each character square :-) In fact, ... but this only works within a character square. If you might ... on any vertical pixel position, not just those aligned to character ... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... t rely on ROM calls and will only put Character data ... and INK vales are currently on screen (or are applied to ... /> ld (de),a ;Spectrum Character Set to Spectrum Screen
inc d ... p_print ;Since Spectrum Charset starts on a Page Boundary
ret ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... to put more than one character at a time anyway. (I was ... . Right now on the list are:
1> print a character anywhere ... see, lately, I'm obsessing on screen handling stuff. *heh* I spent ... routines, and I'm wanting screen shinies!
You MUST ... -
Why only 2 colors ?Maybe this question dont go on this part of the forum, but dont know what other part to ask. Why the Spectrum only can show 2 colors at time in the …
... of memory. There is then a grid of 32x24 square ' ... colours on-screen, just so long as they were in different character squares ... its time redrawing a small area of the screen. In C64 games ... threads for examples of this on a Spectrum:
[url]http:// ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... /> ; Routine to Print a Single Character to Spectrum Screen on Pixel Boundaries
; Registers ... a Character boundary
p_print3: pop hl
;POP one of the Screen ... over a Character Boundary i.e. we will need to recalculate the Screen ... -
How to insert special characters in Basic and ASM ?Look the next picture. [IMG]http://img25.imageshack.us/img25/9479/scode.jpg[/IMG] I dont know how to insert these black and diagonal characters. No…
This will create the diagonal character in given address (similar to ... line into A
loop
ld (hl),a ;put A into ... /> rra ;shift A to the right, inserting a bit (from carry ... to draw the char on screen. Use some screen address, like #4000, ... -
'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…
... are 8 scan-lines in a character square. A MSB value of 64 ... string
; D = Y-coordinate on the screen
; E = X-coordinate ... 8 bytes of the character bitmap to the screen.
; I ... -
How to insert special characters in Basic and ASM ?Look the next picture. [IMG]http://img25.imageshack.us/img25/9479/scode.jpg[/IMG] I dont know how to insert these black and diagonal characters. No…
... tried to print the gdu A and i obtained just this ... "A". Something is not working as ... said, then i see the character painted on screen. -
How to insert special characters in Basic and ASM ?Look the next picture. [IMG]http://img25.imageshack.us/img25/9479/scode.jpg[/IMG] I dont know how to insert these black and diagonal characters. No…
... the character, i.e. 8 bytes in memory
xor a ;first ... line into A
loop_udg
ld (hl),a ;put A into memory ... on screen
djnz loop_udg
ret
[/QUOTE]
the character ... -
How to insert special characters in Basic and ASM ?Look the next picture. [IMG]http://img25.imageshack.us/img25/9479/scode.jpg[/IMG] I dont know how to insert these black and diagonal characters. No…
... ;8 horizontal lines in the character, i.e. 8 bytes in ... line into A
loop_udg_b
ld (hl),a ;put A into memory ... address, 'inc h' to paint on screen
djnz loop_udg_b
ret ... />
This code printed a full black character. I try now more ... -
How to insert special characters in Basic and ASM ?Look the next picture. [IMG]http://img25.imageshack.us/img25/9479/scode.jpg[/IMG] I dont know how to insert these black and diagonal characters. No…
... ;8 horizontal lines in the character, i.e. 8 bytes in ... /> cpl
ld (hl),a ;put A into memory
cpl
rla ;shift A to the right, inserting a bit (from carry ... address, 'inc h' to paint on screen
djnz loop_udg_b
ret ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... and use a look-up table to set the Screen Addressing. Bear ... of colour clashes - imagine Printing a Character to position 6,6 and ... pipeline - like a fast 2X2 tiles routine, based on a revamp of fourspriter ... be pixel based.
On the other hand, this is ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... you're putting everything down on character boundaries it's fast, and ... s character based doesn't mean everything has to move on 8 ... have to limit the number on screen as well as their size ... it comes to a general purpose sprite routine a character based one has ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... the X value is on an actual Character boundary i.e. there ... a Character boundary
p_print3: pop hl
;POP one of the Screen ... values into an absolute screen address
;On Entry - B = Y ... = X Value On Exit - DE = Screen Address
p_at: ld a,b
Sprite MaskingI was looking at the sprites in some games, and noticed they have sprite followed by mask. Usually a row at a time (so the mask is sort of interleave…
... an explanation of the algorithm on the development blog for the ... as sprite bitmaps to the screen), you should always use the ... /> The structure of the Spectrum screen buffer is such that you ... the next scan line in a character cell by adding 256 to ...
