(8) = x[15.. 8]; let s2 : bits (8) = x[31..24]; let b0 : bits (8) = gfmul(s0, 0xB) ^ gfmul(s1, 0xD) ^ gfmul(s1, 0x9) ^ gfmul(s1, 0x9) ^ gfmul(s1, 0xD) ^ gfmul(s3, 0x9); let b1 : bits (8) = (s0) ^ xt2(s1) ^ xt3(s2) ^ (s3); let b2 : bits (8) = x[15.. 8]; let s2 : bits (8) = x[23..16]; let s3 : bits (8) = x[23..16]; let s3 :
paratroops