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POKING graphicsI remember using binary code (in BASIC) to POKE graphics (thanks Input magazine!) Using a FOR..NEXT loop you would POKE each square in the 8X8 charac…
... for example - Print the Letter A all over the screen, redefine the ... else and Print it again somewhere else on the screen and the ... based screen. When you Issue a Comand like PRINT AT ... Then you changed the position on screen where the graphics appeared, now ... -
The ZX App StoreI was watching one of those iphone adverts and got to thinking Hmmmmm what if you could do something like that for the speccy. Ok heres the idea, if…
... hey presto it instantly appears on the screen ready to go.
Then u get the small print ... -
The ZX App StoreI was watching one of those iphone adverts and got to thinking Hmmmmm what if you could do something like that for the speccy. Ok heres the idea, if…
... hey presto it instantly appears on the screen ready to go.
Then u get the small print ... -
The ZX App StoreI was watching one of those iphone adverts and got to thinking Hmmmmm what if you could do something like that for the speccy. Ok heres the idea, if…
... hey presto it instantly appears on the screen ready to go.
Then u get the small print ... -
What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…
... the numbers 1-20 on the screen.. whoopee do :smile ... ld (5C3Ch),a ;open screen for printing
;
call 6683 ;print bc
ld a ... ;
rst 10h ;print Return
pop af ... when 'opening up' the screen ready for printing, is there ... -
What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…
... .. prints the numbers 1-20 on the screen.. whoopee do :smile:[/quote ...
ld (5C3Ch),a ;open screen for printing
;
[COLOR ... a bit
call 6683 ;print bc
ld a,13 ... ;
rst 10h ;print Return
pop af ;get ... -
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…
... had to write was to print out the times tables, ... and get it to print out nicely on the screen.
... it and tabulating it on a screen whouldn't be too ... useful things like plotting on the screen or drawing lines. By ... out what's going on and why its doing ... -
Star Wars scroll/crawl/title effectI may have seen this type of scroll on a Speccy game before, but I've never seen it as a type-in or part of a cover tape. Does anyone know how to do …
... to plot your characters on your work screen, you divide the paper ... find the position in your buffer screen, and plot the item there ... positions of dozens of objects on-the-fly with this ... />
The technique does work on more sophisticated hardware too. I ... -
Character scrollingOk, first I'd like to say that I'm not looking for a complete routine (but that might help) because I am hoping to write it myself and learn a bit mo…
... want to scroll the screen, a back buffer or render the text ... ?
- What part of the screen are you going to scroll ... the top third of the screen, is that because you want ... scroll "whatever is currently on the screen irrespective of how I put ... -
Character scrollingOk, first I'd like to say that I'm not looking for a complete routine (but that might help) because I am hoping to write it myself and learn a bit mo…
... want to scroll the screen, a back buffer or render the text ... scroll "whatever is currently on the screen irrespective of how I put ... the top third of the screen where each char position identifies ... routine which displays blocks based on id number so i can ... -
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…
... be a character in a print statement of some kind. Collision ... detection would be by attributes on the screen, and the enemy would ... -
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 …
... - and presumably later - Print characters to the screen when it can be ... DOES come time to print to the screen via RST 16 then ... Values have been set and print accordingly?
If that ... 's just to get text on the screen and worry about the ... -
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 …
... - and presumably later - Print characters to the screen when it can be ... DOES come time to print to the screen via RST 16 then ... Values have been set and print accordingly?
[/QUOTE]
Yep ... 's just to get text on the screen and worry about the ... -
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 …
... via your Routine to Print on Lines 22 and 23 is ... , even down to a simple Print Text routine. If you want ... -ROM routine to print text anywhere on the screen I can pull one ... it's easy to add on-the-fly Bold Text, underlining ... -
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…
... the time, when displaying anything on the screen.
If you ... system variables, so called printer buffer and some little more. You ... even place your code in screen memory :) It is used very ... -
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…
... variables, so called printer buffer and some little more. ... even place your code in screen memory :) It is ... used 1/3 of the screen as a collisiontable.
screen is set at 2/3 ... of items are placed on the screen. When two bits are ... -
'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…
... version depends on having the second screen already stored on the RAM ... : INK 1: CLS : PRINT "This is screen 1";AT 16,20 ... I'd got it working on the memory drive, so ... Now, it wouldn't work, on the memory drive or the ... my own 'scr' file on the ! drive and run it ... -
How paint in the down two lines ?The down two lines on the spectrum screen cant be used. But i remeber from the 80's that exist some code that allow us to paint on these two lines wi…
... 1
20 REM Printing on all 24 lines:
30 ... =0 TO 23
50 PRINT "THIS IS LINE: ";N
70 REM Drawing on whole screen:
80 BORDER 5 ... -
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
screen - restore AF and exit Print routine
screen address
;On Entry - B = ... C = X Value On Exit - DE = Screen Address
p_at: ... -
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…
... make...
[QUOTE=print on screen]define_UDG_a
ld hl,$4000 ... the character $4000 paint in screen
ld b,8 ... address, inc h to paint on screen
djnz loop_udg
... address, inc h to paint on screen
djnz loop_udg
... -
Internet on the ZX SpectrumThis has been a bit of a personal holy grail for years and years, so I'm very pleased to announce a humble speccy browsing the Internet with Firefox.…
... zx browser, just print an "pwned" message on the screen ;) (the most recent ... -
Howto paint a squared zone of the screen ?You know what guys ? i begin to love this languaje. Cant understand why not put more effort on the 80's to learn it :( because it is really speedy. …
... the characters, it draws directly on the screen.[/QUOTE]
what ... the RST $10 way to print.
Also, what modification ... -
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…
... bottom of the screen - restore AF and exit Print routine
;[ ... it with what's already on the Screen,
;this takes care ... values into an absolute screen address
;On Entry - B = Y ... Value C = X Value On Exit - DE = Screen Address
p_at: ld ... -
Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …
... the PUSH/POP method on Rallybug, then again on Kuiper Pursuit. KP ... PUSH instructions to clear the buffer screen every frame.
As ... -
How do you work with fonts on speccy?just curious really.. I know c64 workings, and obv. the spec you draw direct to screen.. on 64 , you'd make what would be equivalent to UDG.. and sa…
... if you wrote your own print function you could either ... character the one on screen changes instantly. The Spectrum screen is bit- ... mapped, so you draw on the screen by copying character pixel ... data into the screen pixel data area.
... -
ccompletly baffeled machine codeHi everyone, BEFORE you ask i have not asked help for loads of problems i have recently now encountered and i figured the problems out myself, hones…
... know that the Spectrum screen is a bitmapped one ... won't put a character on the screen, it will however put ... line of 8 pixels on the screen (since Hex FF is ... to allow for the Spectrum screen layout.
... at address 23675. So to print (say) the 2nd UDG ... -
ccompletly baffeled machine codeHi everyone, BEFORE you ask i have not asked help for loads of problems i have recently now encountered and i figured the problems out myself, hones…
... - for example - Print the Letter A all over the screen, redefine the ... or the screen is cleared, so you can Print a Character ... something else and Print it again somewhere else on the screen and the ... corner of the screen (which is equivalent to PRINT AT 0,0 ... -
Print text in assemblyHello, a perhaps simple question: I would like to print a text string on the screen and I wonder how to do that in the most easy way? I seem to re…
... would like to print a text string on the screen and I wonder ... can use upper or lower screen.
So either select ... upper lower screen or use the right start ... screen
PRINT "" AND USR adres = upper screen and undoing print of BC on ... -
Microdrive problem?I recently aquired a micro-drive, Interface 1 and some brand new cartridges + the original manual, so i thought i'd rig it all up and see what it …
... - FORMAT "m"?;1;"name" on the screen. Am
i doing something ... spectrum then type
PRINT p [enter]
followed ... -
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 …
... /> ; Prints characters directly to screen bypassing ROM calls
; ... screen
;
; On entry, A=character to print
; On ... ; Set screen attribute
POP HL ; Get print position back ... of screen
SAVEP LD (DFCC),HL ; Save print ...
