3-60 Vol. 2A ANDNPD—Bitwise Logical AND NOT of Packed Double-Precision Floating-Point Values
INSTRUCTION SET REFERENCE, A-M
ANDNPD—Bitwise Logical AND NOT of Packed Double-Precision
Floating-Point Values
Description
Inverts the bits of the two packed double-precision floating-point values in the desti-
nation operand (first operand), performs a bitwise logical AND of the two packed
double-precision floating-point values in the source operand (second operand) and
the temporary inverted result, and stores the result in the destination operand.
The source operand can be an XMM register or a 128-bit memory location. The desti-
nation operand is an XMM register.
In 64-bit mode, using a REX prefix in the form of REX.R permits this instruction to
access additional registers (XMM8-XMM15).
Operation
DEST[127:0] ← (NOT(DEST[127:0])) BitwiseAND (SRC[127:0]);
Intel C/C++ Compiler Intrinsic Equivalent
ANDNPD __m128d _mm_andnot_pd(__m128d a, __m128d b)
SIMD Floating-Point Exceptions
None.
Protected Mode Exceptions
#GP(0) For an illegal memory operand effective address in the CS, DS,
ES, FS or GS segments.
If a memory operand is not aligned on a 16-byte boundary,
regardless of segment.
#SS(0) For an illegal address in the SS segment.
#PF(fault-code) For a page fault.
#NM If CR0.TS[bit 3] = 1.
Opcode Instruction 64-Bit
Mode
Compat/
Leg Mode
Description
66 0F 55 /r ANDNPD xmm1, xmm2/m128 Valid Valid Bitwise logical AND
NOT of xmm2/m128
and xmm1.
