AESKEYGENASSIST—AES Round Key Generation Assist

INSTRUCTION SET REFERENCE, A-L

3-60 Vol. 2A

VAESKEYGENASSIST 
X3[31:0]  SRC [127: 96];
X2[31:0]  SRC [95: 64];
X1[31:0]  SRC [63: 32];
X0[31:0]  SRC [31: 0];
RCON[31:0]  ZeroExtend(Imm8[7:0]);
DEST[31:0]  SubWord(X1);
DEST[63:32 ]  RotWord( SubWord(X1) ) XOR RCON;
DEST[95:64]  SubWord(X3);
DEST[127:96]  RotWord( SubWord(X3) ) XOR RCON;
DEST[VLMAX-1:128]  0;

Intel C/C++ Compiler Intrinsic Equivalent

(V)AESKEYGENASSIST:

__m128i _mm_aeskeygenassist (__m128i, const int)

SIMD Floating-Point Exceptions

None

Other Exceptions

See Exceptions Type 4; additionally
#UD

If VEX.vvvv ≠ 1111B.