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Converting jpeg/bmp/gif to SCREEN$ fileMight be a bit of a long shot, but is there any way of converting an image file with the correct dimensions/colours to SCREEN$ file that can be loade…
... with the correct dimensions/colours to SCREEN$ file that can be loaded ... up with a converter program to do this.
Failing ... -
im looking for a basic routine that adds a numerical character to a stringim looking for a basic routine that adds a numerical character to a string. so a=1, "1", then a=0 "10", then a=1 "101......" and so on
im looking for a basic routine that adds a numerical character to a string. so a=1, "1", then a=0 "10", then a=1 "101......" and so on -
BBC to screen live game tournamenthttp://www.bbc.co.uk/news/technology-34475037 interesting, could be the start of something? [quote]The BBC is to stream live coverage of a majo…
... />
[quote]The BBC is to stream live coverage of a ... /> maybe we can get them to screen a knockout manic miner tourny ... -
printing to the screen using pokei remember there being a way to print to the screen using pokes, which would allow you to print a character anywhere in the 175x255 matrix. can anyon…
You can POKE directly to screen RAM, but you are poking ... a standard character, that's one POKE per line. Plus one POKE to the ... attributes area of screen RAM (to set the ... colours). So for a 8x8 character plus ... -
Z80 Machine Code Question...Hi Folks, I know not strictly a BASIC question but I have started to learn Z80 machine code - 25 years too late! :smile: I have been reading a book…
... present I poke the hex values in to RAM via ... 16384d ; Start address of screen 210040
LD A ... LOOP LD (HL),A ; POKE bit to screen 77
INC HL ; ... Add 1 to address 23< ... br /> RET ; Return to BASIC C9[/SIZE][/FONT]
Z80 Machine Code Question...Hi Folks, I know not strictly a BASIC question but I have started to learn Z80 machine code - 25 years too late! :smile: I have been reading a book…
... present I poke the hex values in to RAM via ... 16384d ; Start address of screen 210040
LD A ... LOOP LD (HL),A ; POKE bit to screen 77
INC HL ; ... Add 1 to address 23< ... 20E5
RET ; Return to BASIC C9
[/CODE ...Z80 Machine Code Question...Hi Folks, I know not strictly a BASIC question but I have started to learn Z80 machine code - 25 years too late! :smile: I have been reading a book…
... 16384d ; Start address of screen 210040
LD A ... FORA LD (HL),A ; POKE bit to screen 77
INC HL ; ... Add 1 to address 23< ... 2048d ; Load 2048 in to DE 110008
ADD ... br /> RET ; Return to BASIC C9[/SIZE][/FONT]
Z80 Machine Code Question...Hi Folks, I know not strictly a BASIC question but I have started to learn Z80 machine code - 25 years too late! :smile: I have been reading a book…
... /> FORA LD (HL),A ; POKE bit to screen 77
INC HL ; Add ... 1 to address 23
DEC ... . so moving to next third of screen you have to add value (2048 ... -256).
and you have to ...Z80 Machine Code Question...Hi Folks, I know not strictly a BASIC question but I have started to learn Z80 machine code - 25 years too late! :smile: I have been reading a book…
... 16384d ; Start address of screen 210040
120 LD ... 160 LD (HL),A ; POKE bit to screen 77
170 INC ... HL ; Add 1 to ... br /> 360 RET ; Return to BASIC C9[/CODE]
... It is very quick compared to the BASIC program:
...why cant i do this in a dimensional array?let m$(20)=m$(20)+"hello" it wont add it to the string/array m$(20)
... char so when you get to a CHR$ 16 there ...
Try PRINT CHR$ 16 to duplicate the error message.
TO yd+yw-1: LET t ... $ = t$ + m$(r,xd TO (xd+xw-1)): NEXT r ... a separate numerical array and POKE directly to screen memory.
...byte to screen eventI have another question regarding assembly routine in MMCOYZXS by Toni Baker page's 87-88 [QUOTE]21A440 LD HL,40A4 11083F LD DE,3F08 0608 LD B,08…
... bytes of the character @ 0x3Fxx are written to the screen location 0x4xA4 ... registers that indirectly address the screen location are passed the ' ... addresses, which is the character, or the specific byte ... of the character from the ROM table.< ...PAPER&INK: screen/character differenciation?So I was looking at a type-in listing earlier and I got to wondering how the Spectrum differenciates between knowing that the PAPER/INK commands need…
... listing earlier and I got to wondering how the Spectrum ... PAPER/INK commands needs to change the screen background/text colour ... background/text colour of the character. To change the attributes of a ... character only the command needs to be part ...How to write a simple BASIC* horizontal scrolling game (Tutorial) [b]How to write a simple BASIC* horizontal scrolling game[/b] In this tutorial, we will be talking about how to write a simple BASIC* horizont…
... FOR a=60000 TO 60021: READ p: POKE a,p: NEXT ... , where the screen scroll 8 pixels to the left, ... character to the right. If you do this many times the screen ... the player outside of screen, causing an error. therefore ... FOR a=60000 TO 60021: READ p: POKE a,p: NEXT ...Map to screen address problemCan anyone help me out with what I guess is a screen address calculation problem. I need to calculate the screen address of a tile based on a number…
... .
I need to calculate the screen address of a tile ... based on a number from 0 to ... when I have to calculate for the other screen thirds.
to do this. I?ve tried ...Fastest way to write something to screen$Hi, I just got pasmo.exe and start playing with attr scrolling, well, not scrolling, just write different values to a block and see if I can introdu…
... scrolling, just write different values to a block and see if ... what's the fastast way to fill a block of memory ... was the fastest way to update the screen. I know that ldir ... /> _________________
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packet forwarded to wrong interface
Conversion tool - bmp/gif to screen$Hihi Not sure if this is exactly the right place to ask, I don't see a software forum Is there a tool to convert a bmp or gif file to a screen$ sui…
... is exactly the right place to ask, I don't ... a bmp or gif file to a screen$ suitable for spectrum use ... ? I know there are tools to ... go from .scr to gif etc. but I want to be able to ... the PC and move them to the spectrum when I' ...How does the Speccy deal with the Character Set?Hi All, Can anyone spare a little time to explain to me the basic Assembly method of how the Speccy interprets and retrieves Characters to print on …
... [/B] understanding is that the character set is accessed via memory ... of printing a sentence/word to screen would involve the programmer having ... character within the character memory area and jump around the said area to ...quick - Zx80 ASM questionWhile I am ploughing through lots of ASM listings, one of my earlier adaptation attempts surprised me [B][asm code][/B] [code] org 32768 start: ld…
... br /> ld a,(hl) ; get character to print
cp '$' ; see ... hl ; move onto the next character
jp printtext ; ... it the program should print to screen two strings, however when ... 10 CLEAR 32767
20 POKE 23610,255
30 LOAD ...Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
... : You will need to poke (main+1) with 0 to check the keys ...
ld a,2 ; upper screen
call CHAN_OPEN ; get the ... ) ; get the character to print
inc hl ; point to next character
cp ...Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…
... of the available routines to scroll the entire screen in any direction ... , but I'm not being able to ... (1 x 22 characters) one character to the left. Could someone please ... this? I would like to be able to specify the column and ...Ideas for speeding up this BASIC routine?This loop can take up to 2 minutes to run, depending upon the content of the screen being scanned, about 70% of that time being taken up by lines 105…
... to 2 minutes to run, depending upon the content of the screen ... ). Any suggestions on how to speed up those two parts ... /> 1050 FOR y=tri TO tri-ml*my+1 STEP ... 1051 IF b$="n" THEN POKE 23678,y: LET y=USR ... IF NOT y THEN GO TO 1082
1052 LET minx ...Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
... aim is to model another machine with a character-mapped screen and render ... one byte per character, and have to render the screen full of characters ... multiple character sets to be combined on the screen. You might want to test ...SpecBAS 0.802 Released!Hi folks - It's that time again when I release the latest round of features and bugfixes to SpecBAS :) New for this version are ZONEs which act ver…
... to those found in AMOS - they're regions of the screen ... use the ":" character as a tab-character to indent your FOR.. ... supplied text
Optimised POKE$ which offers little in ... increase!
Slight optimisations to other primitive drawing commands - ...Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... Spectrum screen resolution, bytes 256 to 263 would hold the scans for character ... The well-known POKE program to show the screen organization in the ... ]10 FOR n=16384 TO 22527: POKE n,255: NEXT n ... should be faster. To move from one character to the next below ...Buffer to screen - how much?[FONT=Calibri][SIZE=3]I am starting to build a new game and am researching different ways to accomplish what I need to do. My question is, is it poss…
... researching different ways to accomplish what I need to do. My question ... is, is it possible to copy a back buffer of ... 4096 bytes to the top two sections of the screen without the ... flicker etc? This will need to run on a 48k Spectrum ...mkloader - compressed loading screen makerI made a new tool, available on my github at: [url="https://github.com/jarikomppa/speccy"]https://github.com/jarikomppa/speccy[/url] The tool gene…
... , decompresses the embedded compressed loading screen to screen, loads the next block and ... .75k of a "normal" loading screen:
[img]https://dl.dropboxusercontent ... CLEAR 32767 : RANDOMIZE USR 23759 : POKE 23739,111 : LOAD ""CODE : RANDOMIZE ...Print (to screen) avalue held in a register pairHi guys, looking for a routine that will print any value from 0 to 65535 to the current position on the screen. I once heard that there was a PRIN…
... from 0 to 65535 to the current position on the screen.
to the current screen position.
Cheers ..."ZX80 Brain" RPN CalculatorIt is at times like [url=https://www.worldofspectrum.org/forums/discussion/54176/depression]when threads such as this are posted[/url] that I get the…
... I'd already written a screen-drawing routine for a "ZX81 ... - Shown a "keypress on the screen" by temporarily turning on the ...
- only keys shown on screen will actually do anything
to use redefined character sets on the BASIC editor, I've had to POKE ...ZXSCLZF - Yet another Screen CompressorQuick disclaimer before I continue, this compressor does not shrink screens as small as some of the others posted here, in particular the very good z…
... ...). It scans the screen memory by character square so -> ... =buffer+_START; // move screen check start to start of buffer attr ... ld (de),a ; 7t - literal to screen
call _ulzfa050 ; 17t - ... from one part of the screen to another
_ulzfa040:
