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| uses crt;
var x,y,c,coeffr,coeffg,coeffb,ra,ga,ba,rouge,vert,bleu:integer;
procedure SetColor(col,r,g,b:byte);
begin
port[$3c8]:=col;
port[$3c9]:=r;
port[$3c9]:=g;
port[$3c9]:=b;
end;
procedure nouvellecouleur;
var i:integer;
begin
if ra >2 THEN ra:=0;
if ga >2 THEN ga:=0;
if ba >2 THEN ba:=0;
ra:=ra+1;
ba:=ba+1;
ga:=ga+1;
coeffr:=4-ra;
coeffg:=4-ga;
coeffb:=4-ba;
if coeffr>1 THEN coeffr:=0;
if coeffg>1 THEN coeffg:=0;
if coeffb>1 THEN coeffb:=0;
end;
begin
asm
mov ax, 13h
int 10h
end;
ba:=1;
ga:=2;
ra:=3;
repeat
if x=319 THEN
begin
x:=0;
y:=y+1;
end;
x:=x+1;
if y=200 THEN y:=0;
MEM[$a000:x+Y*320]:=X;
if c= 62 THEN nouvellecouleur;
c:=c+1;
bleu:=c*coeffb;
rouge:=c*coeffr;
vert:=c*coeffg;
SetColor(x,rouge,vert,bleu);
until keypressed;
readln;
end. |
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