XOR64(_t, _t, s[1][U8(LO64(c) >> 16)]); \
XOR64(_t, _t, s[2][U8(HI64(c) >> 0)]); \
XOR64(_t, _t, s[3][U8(HI64(c) >> 16)]); \
SUB64(a, a, _t); \
XOR64(_t, _t, s[1][U8(LO64(c) >> 16)]); \
XOR64(_t, _t, s[2][U8(HI64(c) >> 0)]); \
XOR64(_t, _t, s[3][U8(HI64(c) >> 16)]); \
SUB64(a, a, _t); \