hi guys
the polynomial division was diverging for GF(64), hence the endless loop. the following patch made it work for me, and passes all the unit tests i have:
Index: hostport/C6xSimulator.c =================================================================== --- hostport/C6xSimulator.c (revision 322703) +++ hostport/C6xSimulator.c (revision 338579) @@ -1323,29 +1322,28 @@ /* multiply the four sets of polynomials together */ for(k=0;k<8;k++) { - c = mask&a32.x4u.hi2; + c = (mask&a32.x4u.hi2) >> (8-m); ytmp[3] ^= b32.x4u.hi2*c; - c = mask&a32.x4u.hi1; + c = (mask&a32.x4u.hi1) >> (8-m); ytmp[2] ^= b32.x4u.hi1*c; - c = mask&a32.x4u.lo2; + c = (mask&a32.x4u.lo2) >> (8-m); ytmp[1] ^= b32.x4u.lo2*c; - c = mask&a32.x4u.lo1; + c = (mask&a32.x4u.lo1) >> (8-m); ytmp[0] ^= b32.x4u.lo1*c; mask <<= 1; } - /* divide each result by the generator polynomial */ for(k=0;k<4;k++) { maxpower2 = 30-_norm(ytmp[k]); - while(maxpower2 >= m) + while(maxpower2 >= 8) { - c = poly << (maxpower2 - m); + c = poly << (maxpower2 - 8); ytmp[k] ^= c; maxpower2 = 30-_norm(ytmp[k]); } cheers,
sam