-static
-void bmw_small_f2(uint32_t* h, const uint32_t* q, const void* m){
- uint32_t xl=0, xh;
- uint8_t i;
- for(i=16;i<24;++i){
- xl ^= q[i];
- }
- xh = xl;
- for(i=24;i<32;++i){
- xh ^= q[i];
- }
-#if DEBUG
- cli_putstr_P(PSTR("\r\n XL = "));
- cli_hexdump_rev(&xl, 4);
- cli_putstr_P(PSTR("\r\n XH = "));
- cli_hexdump_rev(&xh, 4);
-#endif
- memcpy(h, m, 16*4);
- h[0] ^= SHL32(xh, 5) ^ SHR32(q[16], 5);
- h[5] ^= SHL32(xh, 6) ^ SHR32(q[21], 6);
- h[3] ^= SHR32(xh, 1) ^ SHL32(q[19], 5);
- h[4] ^= SHR32(xh, 3) ^ q[20];
- h[6] ^= SHR32(xh, 4) ^ SHL32(q[22], 6);
- h[2] ^= SHR32(xh, 5) ^ SHL32(q[18], 5);
- h[1] ^= SHR32(xh, 7) ^ SHL32(q[17], 8);
- h[7] ^= SHR32(xh,11) ^ SHL32(q[23], 2);
- for(i=0; i<8; ++i){
- h[i] += xl ^ q[24+i] ^ q[i];
- }
- for(i=0; i<8; ++i){
- h[8+i] ^= xh ^ q[24+i];
- h[8+i] += ROTL32(h[(4+i)%8],i+9);
- }
- h[11] += SHL32(xl, 4) ^ q[18] ^ q[11];
- h[10] += SHL32(xl, 6) ^ q[17] ^ q[10];
- h[ 8] += SHL32(xl, 8) ^ q[23] ^ q[ 8];
- h[15] += SHR32(xl, 2) ^ q[22] ^ q[15];
- h[12] += SHR32(xl, 3) ^ q[19] ^ q[12];
- h[13] += SHR32(xl, 4) ^ q[20] ^ q[13];
- h[ 9] += SHR32(xl, 6) ^ q[16] ^ q[ 9];
- h[14] += SHR32(xl, 7) ^ q[21] ^ q[14];
-}
-*/