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ScanlinesHere's an excerpt from the FAQ: [quote] Now for the timings of each line itself: define a screen line to start with 256 screen pixels, then border, …
"define a screen line to start with 256 screen pixels, then border, then [B]horizontal retrace[/B], and then border again."
Next line. -
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... INC H ; *256 to get next line
LD A,(DE)
next line
LD A,(DE)
next line
LD A,(DE)
next line
LD A,(DE)
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... INC H ; *256 to get next line
LD A,(DE)
next line
LD A,(DE)
next line
LD A,(DE)
next line
LD A,(DE)
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... INC H ; *256 to get next line
LD A,(DE)
next line
LD A,(DE)
next line
LD A,(DE)
next line
LD A,(DE)
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... INC H ; *256 TO GET NEXT LINE
LD A,(DE)
NEXT LINE
LD A,(DE)
NEXT LINE
LD A,(DE)
NEXT LINE
LD A,(DE)
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... INC H ; *256 TO GET NEXT LINE
LD A,(DE)
NEXT LINE
LD A,(DE)
NEXT LINE
LD A,(DE)
NEXT LINE
LD A,(DE)
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... INC H ; *256 TO GET NEXT LINE
INC B
LD ... INC H ; *256 TO GET NEXT LINE
INC B
LD ... INC H ; *256 TO GET NEXT LINE
INC B
LD ...What's wrong with YS94...Hello, I'm Steve Anderson. You might remember me from such magazines as Your Sinclair and, um, that's it. I was the one who wrote a platform game in …
... Final one anymore. Indeed the next line starts "YS is back" - I ...What's wrong with YS94...Hello, I'm Steve Anderson. You might remember me from such magazines as Your Sinclair and, um, that's it. I was the one who wrote a platform game in …
... Final one anymore. Indeed the next line starts "YS is back" - I ...RFC: Sinclair Extended BASICSE Basic is no longer being developed.
... for an ELSE within the line if the IF statement is ... put the contents on the next line.
[/quote]Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... /> To add a non-deleteable line 0 in your programs try ... />
...23637/8 hold the next line number (NXTLIN) so by setting ... this to 0, line 2 becomes line zero!
Completely ...Best Speccy game written in BASICHopefully this has not been done before, but anyhoo. My vote is the sublime VIKING RAIDERS.
... shall remain nameless (until the next line at least :) ).
I ...T.I.M. - A New Interlace - Demo for DOWNLOADHere's something that's been in the works for quite a while ( mostly in my head ) and recently I've aquired assistance to help it come to fruition. …
... br /> add hl, sp ;11 next line in back buffer
< ... />
;right 16B first line
... 16+32
; prepare for next line
pop af
... /> add hl, sp ;11 next line in back buffer
how do I make a text adventure?Help me! Please! I tried to make a text adventure in the following way: 10 input "up or right",a$:if a$="right" then gosub 20:if a$="up" then gosub …
A failing IF clause causes execution to jump to the next line, not the next statement. See Chapter 3 of the orange manual.Name of crispsI remeber when i was a kid in the 80s there were these crisps which were shaped like little pigs and were hollow. There was only one flavour which wa…
... farm animals and IIRC the next line of the song went something ...finding largest value (z80 assembly)suppose we have to write z80 program which requires to find the biggest value in a block of memory starts from the address 101h until address stored …
the algorithm is as follows - in psuedo code :-)
load hl with the start of the block to search
load bc with the length of the block to search
load accumulator with value pointed to by hl (ie. the current smallest number)
loop ...finding largest value (z80 assembly)suppose we have to write z80 program which requires to find the biggest value in a block of memory starts from the address 101h until address stored …
[QUOTE=Kiwi]the algorithm is as follows - in psuedo code :-)
load hl with the start of the block to search
load bc with the length of the block to search
load accumulator with value pointed to by hl (ie. the current smallest number ...Background image with SP1 and Z88DKWhat is the prefered way to place an entire (or very large) image in the background when using SP1? Should I convert it to a long (32*24=768 ) list o…
... * (goto x coordinate on same line)
; 7 print string ... return (move to start of next line in bounds rectangle)
; 14 ... push state
; 27 escape, next char is literal not special ... single string (and a single line of code). If you make ...Spectrum Screen Memory MapWhat's the advantage (mistery?) behind ULA's spectrum screen memory interpretation? 6144 bytes divided into 3 blocks, 2048 bytes long. if you want t…
... 32x24 mode - to print the next line of the character you just ... of the address, and the next 256b as being the LOBYTE ...Spectrum Screen Memory MapWhat's the advantage (mistery?) behind ULA's spectrum screen memory interpretation? 6144 bytes divided into 3 blocks, 2048 bytes long. if you want t…
... at the beginning of the next line (well, mostly... or we could ... 't simply move to the next line without considering the worst possible ... H to move to the next line - but that again supports the ...Strangest Sinclair related Collectable I now ownI couldn't resist it. just had to do it! and now i think it's got to be the strangest item in my Sinclair Collection The Clive Sinclair Thimble! [u…
... who (claim to) hear the next line as "Can't you feel ...Print routine for BASIC (or BASin)For anyone interested there's a crappy binary here to print characters from BASIC at pixel positions. Import the binary at 60000, USR 60000 to initia…
... /> Program here overlaps message to next line and stops at edge.
Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …
... is it saying that each line of block must be always ... in length and not ordered line by line?
Or ... each line be 811 bytes in length ... would be 5 bytes per line (2 pixels per byte) ... by 5 bytes for the next line etc... so just 50 bytes ...basizx newsHello. I've uploaded a new version of basizx. Now there is also an Amstrad CPC incarnation, able to LOAD and SAVE +3 basic files in disc. And the I…
... character by character rather than line by line.[/QUOTE]
... header" - two bytes form the line number, two bytes the length ... are used to search line by line, rather than character by ... to search from the next line if the line number to search for ...basizx newsHello. I've uploaded a new version of basizx. Now there is also an Amstrad CPC incarnation, able to LOAD and SAVE +3 basic files in disc. And the I…
... " - two bytes form the line number, two bytes the length ... are used to search line by line, rather than character by ... search from the next line if the line number to search ... to get to the next line except it uses 1 ... byte for the line length. Thats also where ...My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... number of bytes per line
ldir ;draw line
call IncY ;get next line draw position, return in de ... /> pop bc ;one less line to draw
dec bc ...My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... - the address of the line below ;
; ... - the address of the line above ;
; ... character to next line
...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... of the first line and press "DEL", the next line will be concatenated ...How did games started with LOAD "" CODE auto-start?Some early games (l remember for example [B]Galaxians[/B] from 1982) was loaded with LOAD "" CODE, which in one single block first loaded the loading…
... then after reloading the
next line in BASIC is executed; the ...
