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3-664 Vol. 2A MOVQ—Move Quadword
INSTRUCTION SET REFERENCE, A-M
DEST[127:64] ← 0000000000000000H;
Flags Affected
None.
SIMD Floating-Point Exceptions
None.
Protected Mode Exceptions
#GP(0) If the destination operand is in a non-writable segment.
If a memory operand effective address is outside the CS, DS,
ES, FS, or GS segment limit.
#SS(0) If a memory operand effective address is outside the SS
segment limit.
#UD If CR0.EM[bit 2] = 1.
128-bit operations will generate #UD only if CR4.OSFXSR[bit 9]
= 0. Execution of 128-bit instructions on a non-SSE2 capable
processor (one that is MMX technology capable) will result in the
instruction operating on the mm registers, not #UD.
If the LOCK prefix is used.
#NM If CR0.TS[bit 3] = 1.
#MF (MMX register operations only) If there is a pending FPU
exception.
#PF(fault-code) If a page fault occurs.
#AC(0) If alignment checking is enabled and an unaligned memory
reference is made while the current privilege level is 3.
Real-Address Mode Exceptions
#GP If any part of the operand lies outside of the effective address
space from 0 to FFFFH.
#UD If CR0.EM[bit 2] = 1.
128-bit operations will generate #UD only if CR4.OSFXSR[bit 9]
= 0. Execution of 128-bit instructions on a non-SSE2 capable
processor (one that is MMX technology capable) will result in the
instruction operating on the mm registers, not #UD.
If the LOCK prefix is used.
#NM If CR0.TS[bit 3] = 1.
#MF (MMX register operations only) If there is a pending FPU
exception.