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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…
... stream, then PRINT #4; AT y,x; etc. Probably the odd bug ... -
Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …
... 't cope with 16-bit X/Y values. I'm trying to ... (or at least 9-bit) X/Y values so I can support ... and then compares X and Y - swapping them if Y is larger.
JR C,gfxdraw2 ;X/Y ok as they are so ... C,A ;swap HL (Y) and BC (X)
gfxdraw2:< ... -
Computer & Video Games Book of Adventure, TheBelow is the spectrum listing from the "[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000078"]Computer & Video Games Book of Adventure, The…
Below is the spectrum listing from the "[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000078"]Computer & Video Games Book of Adventure, The[/URL]" book.
I've had to add line 2 as there was a GO SUB 2 in the rest of the listing & ... -
Goldfinch - an open software stack for mass storageYep, another pet project of mine to compete with all the others I've started. But hey, if I didn't get distracted by things like this I'd just get di…
... buffer[512];
unsigned int x,y;
BLOCK_DEVICE *device;
y = 0; y < 256; y += 16) {
for (x = 0; x < 16; x++) {
printf("%02x ", buffer[y|x ... -
Print at 128,87? :)The advanced search function didn't help me find the answer to this, and I don't remember seeing anything similar in magazines or books... so please …
... me to use PRINT AT x, y (not y,x like the regular AT ... such routine would limit x to 248 and y to 184 to ... -
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…
... ?
That is print(y,x,CHAR) that allows 0 < ... ; y < 192 and 0 < x < 255 ... -
Manipulating attributes...Hi Folks, I have written a routine that allows a blue bar to be scrolled up and down a list to select an item. Each item in the list occupies two l…
... AT 14+a,0;"ATTR Line ";a;"=";ATTR (a,1):
... NEXT a
190 LET y=0 ... 200 LET ar1=ATTR (y,0):
LET ar2=ATTR (y+1,0):
PAUSE 1:
PRINT AT y, ... TO 32):
LET y=y+(2 AND k=10)+(-2 ... -
(part of) screen to UDGHere is a routine to copy a Y,X-position on screen to a UDG. 0<=y<=23 0<=x<=31 144<=udg<=165 (UDG "A" to UDG "U") [code] ; start code with ; PRINT …
Here is a routine to copy a Y,X-position on screen to a UDG.
0 -
A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... for Sprites
// format is y,x,w,h!
struct sp1_Rect ... ()
uchar x; // sprite x coordinate
uchar y; // sprite x coordinate
uchar ... -
Dimming the screen...Hi Folks, I was hoping someone on here could help me with a wee machine code routine. I have written the following example in BASIC: [CODE]100 REM…
... x=0 TO 31: PRINT AT y,x; PAPER RND*7;" ": NEXT x: NEXT y ... -
BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
... /> #define MIN(x, y) ((x) < (y) ? (x) : (y))
#define MAX(x, y) ((x) > (y) ? (x) : (y))
int ... -
Graph Plothi! please, help with code: [PHP]For x=-100 To 100 For y=-100 To 100 If (x/2-25)*(x/2-25)+(y-50)*(y-50)<200 Or (x/2+25)*(x/2+25)+(y-50)*(y-50)<200 th…
hi! please, help with code:
[PHP]For x=-100 To 100
For y=-100 To 100
If (x/2-25)*(x/2-25)+(y-50)*(y-50) -
Raising to the powerA curiosity of ZX Basic I found yesterday is that you can't do this: [code] 10 LET x=-3 20 LET y=x^2 [/code] While you can for example do LET y=-3^…
... ]
10 LET x=-3
20 LET y=x^2
[/code ... can for example do LET y=-3^2 (which incidentally gives ... answer, it evaluates it as y=-(3^2) )
Searching ... powers you can always do y=ABS(x)^2 because an even ... -
array offset (z88dk)Im trying to simulate a 2 dimensional array by using an offset [code] #include <fzx.h> char scr[768]; int arrayoffset(char x,char y) { return (x*…
... /> int arrayoffset(char x,char y)
{
return (x*23+y);
}
void main()
{
char x,y;
fzx.font = ff_Swiss;
Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …
... is a typical y,x coordinate and the ... br />
Y (ycoord) = 128
X (xcoord) = 2< ... /> rlca ; divide y by 8 and multiply ... br /> ld a,(xcoord) ; x coordinate.
rrca ; only ...Chompston Mazes in SpecBASAfter the discussion in ASH-II's Pacman thread, I checked out the link there about generating 2D Pacman style mazes. This one was quite good fun, …
... ))*2):
IF m(x,y)=1 THEN
LOOP < ... /> ELSE
LET m(x,y)=1,n=INT(RND*3 ... FN d:
LET x$=x$+CHR$ x,y$=y$+CHR$ y:
NEXT g: < ... LEN x$:
LET x(f)=CODE x$(f),y(f)=CODE y$(f ...'Mike's' moon lander in SpecBAShttps://youtu.be/1mjwLD6juB8 As modified and turned into a video by Dunny. I put my name in single quotes because it really is only thanks to Dunn…
... ,0,0,0:
x=scrw/2, y=0, acc=0, thrust ... a$,0,x,y,16,32
50 print move x,y; trans 7 ...
print trans 7; move x,y+16;ink 10+(int(rnd ... ="; thrust
60 old_x=x: old_y=y:
x+=keyst key_right - keyst key_left ...SpecBAS 0.971 now available!https://drive.google.com/open?id=0B6gXsz43xir_eV9JbWhUZ1Rxc0k Fixes a few occasional crashes and sorts out a few bugs in the editor. Also allows …
how do i set this code up, so i can print more than one line of text?well i got it working but how do i set this code up, so i can print more than one line of text? with a loop or something? not sure where to start on …
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... /> ; ******************************************************************
; Plot pixel at (x,y) coordinate.
; The (0,0 ... br /> ; in: BC = (y,x) coordinate of pixel
x,y) coordinate.
;
; in: bc = (y,x) coordinate ...line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
...
; // The y-values are increasing
... ******************************************************************
; Plot pixel at (x,y) coordinate.
; The (0,0 ... /> ; in: BC = (y,x) coordinate of pixel
...line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... /> ;IN: HL = (x0,y) - x0 range is 0 to ... 255, y range is 0 to ... .
; DE = (x1,y) - x1 range is 0 to ... br /> horz: ld b,l; y
ld a,h
y,x) coordinate of pixel
ex ...Random Smiley FacesAs promised, here's the Syntax: ;Startup 5 CLS 7 PAPER 0: BORDER 0 ;Graphics 10 FOR n=0 to 7 20 READ row: POKE USR "P"+n,row 30 NEXT n 31 DATA BI…
... is also allowed so his X and Y-coordinate should be defined ...
LET X = INT (RND * 32) and
LET Y = INT (RND ... />
LET X = INT (RND * 32)
LET Y = INT (RND * 24 ... Y,X;"P"
IF Y > 21 then PRINT #1;AT 22-Y,X ...Making a mapI should learn Z80 assembly, but I don't have the time (really busy) and I feel like making a game. I've tried with Colt which gives me enough speed…
... 7; INK 0;AT y-1,x;" !";AT y,x;"$%": RETURN
9002 PRINT ... 7; INK 0;AT y-1,x;"""#";AT y,x;"&'": RETURN
9003 ... 7; INK 0;AT y-1,x;"()";AT y,x;",-": RETURN
9004 PRINT ... 7; INK 0;AT y-1,x;"*+";AT y,x;"./": RETURN
... (etcetera, 30 ...Making a mapI should learn Z80 assembly, but I don't have the time (really busy) and I feel like making a game. I've tried with Colt which gives me enough speed…
... channel
(Mind you AT Y,X doesn't work on printer).
