3-29
INSTRUCTION SET REFERENCE
ADDSS—Scalar Single-FP Add (Continued)
Real Address Mode Exceptions
Interrupt 13
If any part of the operand would lie outside of the effective address space
from 0 to 0FFFFH.
#UD
If CR0.EM = 1.
#NM
If TS bit in CR0 is set.
#XM
For an unmasked Streaming SIMD Extension numeric exception
(CR4.OSXMMEXCPT =1).
#UD
For an unmasked Streaming SIMD Extension numeric exception
(CR4.OSXMMEXCPT =0).
#UD
If CR4.OSFXSR(bit 9) = 0.
#UD
If CPUID.XMM(EDX bit 25) = 0.
Virtual 8086 Mode Exceptions
Same exceptions as in Real Address Mode.
#AC
For unaligned memory reference if the current privilege level is 3.
#PF (fault-code)For a page fault.
