-
Problem With POINT StatementHello everyone this is my first ever post, So firstly i'd like to say hello to everyone and secondly thank you to the admins for such a great site, …
... as the browser won't print the graphic symbols. I put ... a border all the way around ... that I didn't need a separate check for out of ... LET d=3
3 GO TO level
500 CLS : PRINT ... /> 1000 LET n=0: LET m=-1: LET dj=0: LET x=15: LET y ... -
Problem With POINT StatementHello everyone this is my first ever post, So firstly i'd like to say hello to everyone and secondly thank you to the admins for such a great site, …
... as the browser won't print the graphic symbols. I put ... a border all the way around ... that I didn't need a separate check for out of ... LET d=3
3 GO TO level
500 CLS : PRINT ... /> 1000 LET n=0: LET m=-1: LET dj=0: LET x=15: LET y ... -
Couple of basic BASIC questionsPlaying around with BASin again in an effort to knock up a game and am wondering 2 things 1) Why when I run the program do my UDGs not always pick u…
... these things
POKE USR "b"+0,BIN 00111100 ... UDG "b". You then POKE that address (plus an ... USR "b"+7: READ a: POKE f,a: NEXT f: DATA 1 ... represent. Try
PRINT BIN 00111100
And ... 60" instead:
POKE USR "b"+0,60
Copying data between memory banks in USR0 modeI am experimenting with Funky Fungus to load the majority of its data (levels, screens, music etc.) into memory banks 1, 3, 4, 6 and (partly) 7 by sw…
... br /> ;bank X selected by a POKE [routine address]+2,X
let you know where do I ... loads copy routine
30 LET a=32765: LET n=16
40 ... OUT a,n+3: LOAD "1" ... bank 3
50 POKE 28102,3: REM selects bank ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... the reason I'm doing a CLEAR in machine code.[/QUOTE ... /> [QUOTE=GoingDigital;723893]but after a turboloader it gives you the ... ? Let me know which one, and I will find out a POKE to ...display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…
... ,a ;H =010ssppp
1005 LET a=b: REM ld a,b
1006 LET a=a ... -INT (a/8)*8 ... l,a ;L =rrrccccc
1012 LET hl=h*256+l: POKE hl ...Scrolling TextI've being trying to find a simple basic way of scrolling some text on a single line, My method is ridiculous, I've been using the print statement fo…
Try this (assuming a$ contains the text you want ... a$
20 LET a$=a$(2 TO )+a$(1)
30 PRINT AT 21,0; a ... to display the message to a different line.
Change ...Scrolling TextI've being trying to find a simple basic way of scrolling some text on a single line, My method is ridiculous, I've been using the print statement fo…
In BASIC?
[CODE]10 LET a$=" Hello everybody, this is scrolling text... "
20 FOR N=1 TO LEN A$-31
30 PRINT AT 0,0;A$(N TO N+31);
40 PAUSE 5
50 NEXT N[/CODE]Scrolling TextI've being trying to find a simple basic way of scrolling some text on a single line, My method is ridiculous, I've been using the print statement fo…
[code]
10 LET a$=" (31 spaces) "
20 LET a$=a$+" This is your main ... will be fine"
30 LET a$=a$+"(another 31 spaces)"
40 ... =1 TO LEN a$-31: PRINT AT 21,0;a$(n TO n ...display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…
... (p+1))*2) THEN POKE hl,w+b(p)
poke
121 PAPER 0: BORDER 0: INK 6: CLS :
LET ... b=0: LET c=b: LET hl=c: LET w=c: LET p ... /> LET x1=r: LET x=x1: LET y1=0: LET y=y1: LET err ... GO SUB 1000: LET ft=t0:
PRINT AT 5,0;" ...display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…
...
7 POKE hl,w+e: RETURN
10 LET x=xo ... /> LET e=0: LET b=0: LET c=b: LET hl=c: LET w=c: LET ... /> 998 GO SUB 1000: LET st=t0: PRINT AT 4,0;"Start ... /> 999 GO SUB 1000: LET ft=t0: PRINT AT 5,0;"Finish ...New game: Tea and SympathyHere's something I knocked up in a few days with AGD, a horizontally-scrolling shooter featuring some very nice sprites Binman drew a while ago which…
... 29999
LOAD ""CODE
POKE 32000,205 (if you don ... ]...and if anybody could do a POKE to shoot with constant / auto ... /download/v99gob8hamttjxw/teasymp3.z80"]and a bullet hell version[/URL]!
let me know & I'll ...A few questions about ZX Spectrum assemblyHi, I have a few questions about ZX Spectrum assembly language programming: - What's the best assembly tool for ZX Spectrum? I tried a bit the ZXSpi…
... />
It is a fantastic Assembler with a built in emulator. :)[/QUOTE ... how to run a program.
I made a program, I pushed ... code with:
[CODE]LET A=PEEK 30000: PRINT A[/CODE]
and all ... I get is a "0".
A few questions about ZX Spectrum assemblyHi, I have a few questions about ZX Spectrum assembly language programming: - What's the best assembly tool for ZX Spectrum? I tried a bit the ZXSpi…
... with:
[CODE]LET A=PEEK 30000: PRINT A[/CODE]
and ... all I get is a " ... emulator does not have a save snapshot feature. The ... either:
A) Assemble the file to an ... the object code into a Spectrum via some sort ...Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... .
There are a few good microdrive books on ... possible to load and run a program automatically. Just name the ... />
10 PRINT "1 - Game Launcher"
100 LET a$=INKEY$
110 ... IF a$="1" THEN LOAD ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... /> org 0x1fcd
print:
ld a, 2 ; channel 'S'< ... so
; THE 'PRINT A CARRIAGE RETURN' SUBROUTINE
org ... br /> ld b, a ; set print position to top of ... ; stack parameters
call let ; make assignment
jr ...Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... much quicker to find a subroutine referenced via a GOSUB than it ... This is because to find a GOSUB line the ROM just ... line, whereas to find a DEF FN it has to ... close to the start of a line as possible and ... br /> GO SUB 2: LET ft=t0: PRINT AT 5,0;"Finish ...Graphics questionHello. I was wondering, does anybody here know of a method to display a large (as in, the better part of the screen) bitmap/raster image using ZX Sp…
... DEF FN a$(a$)=""
[*]Locate it:
.... RESTORE mmmm: LET da= ... 23670: POKE da+7,PEEK 23671:
[*]Use it:
.... LET a$=string ... expression
.... LET stringvariable=a$
[*]Deactivate it:
.... POKE 23564 ...The Evolution of Some Nonsense[center] [B]TIMINGS FOR 100 BOUNCES[/B] [b]Ten Bouncy UDGs in BASIC[/b] [img]http://www.users.globalnet.co.uk/~jg27paw4/pourri/a000test.gif[/img] [u…
... would be:
[code]LET a$=CHR$ 22+CHR$ 0+CHR$ ... +CHR$ 17+CHR$ 2
PRINT a$;"hello"[/code]
which instead ... SpecBAS that I was in a constant state of confusion while ...The Evolution of Some Nonsense[center] [B]TIMINGS FOR 100 BOUNCES[/B] [b]Ten Bouncy UDGs in BASIC[/b] [img]http://www.users.globalnet.co.uk/~jg27paw4/pourri/a000test.gif[/img] [u…
... would be:
[code]LET a$=CHR$ 22+CHR$ 0 ... 17+CHR$ 2
PRINT a$;"hello"[/code]
which ... />
[code]
LET a$=CHR$ 22+QCHR$ 0+QCHR ... $ 17+CHR$ 2
PRINT a$;"hello"
[/code]
...
There are quite a few instances where things that ...hash function permutation tableI'm using a simple Pearson hash function to generate keys for a $(103,6) array using a 256-byte permutation table. How do I arrange the entries in th…
... llll: LET da=PEEK 23639+256*PEEK 23640+8:
POKE 23563 ... ,da-INT (da/256)*256: POKE 23564,INT (da/256)
LET ba2=INT (a/2): LET bb2=INT (b/2):
LET ba=a-ba2 ... *2: LET bb=b-bb2*2:
LET a=ba2: LET b ...hash function permutation tableI'm using a simple Pearson hash function to generate keys for a $(103,6) array using a 256-byte permutation table. How do I arrange the entries in th…
... :print #0;at 0,0;k:let x$=k$(k)
60 let a ... let a=a+code x$(4)+code x$(8)
90 let a=a-64*int(a ... /64)
100 let b=b-64 ... print "dup.old=";code h$(rsl+1)-32,"dup.new=";k: let ... let h$(rsl+1)=chr$(k+32)
140 next k: print ...How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... re this section of the print code....
ld a,(hl) ;A =character to print "
10 Let a$="I'm a newbie help!"
20 Print a$
...INPUT help?Hi folks. :) Brace yourselves, this is probably a very silly question, my BASIC knowledge is very... well, basic... Let's say, for example, I'm mak…
... to restrict the size of a numeric field is ...
5 INPUT a$
6 LET a=VAL a$
[/code]
5 INPUT a$
6 LET a=0
7 FOR ... b=1 TO LEN a$< ... INKEY$="")
21 PRINT AT 12,14;a: STOP
...reversing an LFSRWhat's the correct way of reversing an LFSR so that it produces the same numbers but in reverse order? The little BASIC program below shows a test I …
... )=0: LET x(4)=1: LET x(5)=0: DIM a$(13): LET a$="1101000100100 ... "
5 PRINT "seed=";a$: FOR a=1 TO ... 32
40 LET a ...quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... a("a","b"): POKE da+3,0: POKE da+12,0:
LET pa=23563: LET ... LET aa=((a-lo)/256+1)*16:
FOR b=a TO a+255: POKE ... b,aa: NEXT b:
NEXT a
5 LET ... b]LET a$=b ... LET b$=a$:[/b] GO TO 25
89:
90 [b]POKE ...quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... : LET aa=((a-lo)/256+1)*16:
FOR b=a TO a+255: POKE ... b,aa: NEXT b:
NEXT a
107 [b]LET a$=b$[/b]
110:
LET b$=a$:[/b] GO TO 125
189:
190 [b]POKE ...quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... level.
I have a block of byte data allocated ... character data:
LET a$(pos to pos+1)=s ... , 1 TO 2)
LET a$(pos+32 to pos+33 ... , I paint in correct position a$ "tile"...
7- If ... tile, I "clear" a$ tile plus POKE pos+"hero" xy to ...
