def randinit(flag)
i = 0
a = 0
b = 0
c = 0
d = 0
e = 0
f = 0
g = 0
@aa = @bb = @cc = 0
a = b = c = d = e = f = g = h = 0x9e3779b9
while (i < 4) do
a ^= b<<1; d += a; b += c
b ^= 0x3fffffff & (c>>2); e += b; c += d
c ^= d << 8; f += c; d += e
d ^= 0x0000ffff & (e >> 16); g += d; e += f
e ^= f << 10; h += e; f += g
f ^= 0x0fffffff & (g >> 4); a += f; g += h
g ^= h << 8; b += g; h += a
h ^= 0x007fffff & (a >> 9); c += h; a += b
i += 1
end
i = 0
while (i < 256) do
if (flag)
a+=@randrsl[i ].to_i; b+=@randrsl[i+1].to_i;
c+=@randrsl[i+2]; d+=@randrsl[i+3];
e+=@randrsl[i+4]; f+=@randrsl[i+5];
g+=@randrsl[i+6]; h+=@randrsl[i+7];
end
a^=b<<11; d+=a; b+=c;
b^=0x3fffffff & (c>>2); e+=b; c+=d;
c^=d<<8; f+=c; d+=e;
d^=0x0000ffff & (e>>16); g+=d; e+=f;
e^=f<<10; h+=e; f+=g;
f^=0x0fffffff & (g>>4); a+=f; g+=h;
g^=h<<8; b+=g; h+=a;
h^=0x007fffff & (a>>9); c+=h; a+=b;
@mm[i]=a;@mm[i+1]=b; @mm[i+2]=c; @mm[i+3]=d;
@mm[i+4]=e; @mm[i+5]=f; @mm[i+6]=g; @mm[i+7]=h;
i += 8
end
if flag
i = 0
while (i < 256)
a+=@mm[i ]; b+=@mm[i+1]; c+=@mm[i+2]; d+=@mm[i+3];
e+=@mm[i+4]; f+=@mm[i+5]; g+=@mm[i+6]; h+=@mm[i+7];
a^=b<<11; d+=a; b+=c;
b^=0x3fffffff & (c>>2); e+=b; c+=d;
c^=d<<8; f+=c; d+=e;
d^=0x0000ffff & (e>>16); g+=d; e+=f;
e^=f<<10; h+=e; f+=g;
f^=0x0fffffff & (g>>4); a+=f; g+=h;
g^=h<<8; b+=g; h+=a;
h^=0x007fffff & (a>>9); c+=h; a+=b;
@mm[i ]=a; @mm[i+1]=b; @mm[i+2]=c; @mm[i+3]=d;
@mm[i+4]=e; @mm[i+5]=f; @mm[i+6]=g; @mm[i+7]=h;
i += 8
end
end
isaac()
@randcnt=256;
end