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3-148 Vol. 2A CMPSS—Compare Scalar Single-Precision Floating-Point Values
INSTRUCTION SET REFERENCE, A-M
CMPSS for less-than __m128 _mm_cmplt_ss(__m128 a, __m128 b)
CMPSS for less-than-or-equal __m128 _mm_cmple_ss(__m128 a, __m128 b)
CMPSS for greater-than __m128 _mm_cmpgt_ss(__m128 a, __m128 b)
CMPSS for greater-than-or-equal__m128 _mm_cmpge_ss(__m128 a, __m128 b)
CMPSS for inequality __m128 _mm_cmpneq_ss(__m128 a, __m128 b)
CMPSS for not-less-than __m128 _mm_cmpnlt_ss(__m128 a, __m128 b)
CMPSS for not-greater-than __m128 _mm_cmpngt_ss(__m128 a, __m128 b)
CMPSS for not-greater-than-or-equal__m128 _mm_cmpnge_ss(__m128 a, __m128 b)
CMPSS for ordered __m128 _mm_cmpord_ss(__m128 a, __m128 b)
CMPSS for unordered __m128 _mm_cmpunord_ss(__m128 a, __m128 b)
CMPSS for not-less-than-or-equal__m128 _mm_cmpnle_ss(__m128 a, __m128 b)
SIMD Floating-Point Exceptions
Invalid if SNaN operand, Invalid if QNaN and predicate as listed in above table,
Denormal.
Protected Mode Exceptions
#GP(0) For an illegal memory operand effective address in the CS, DS,
ES, FS or GS segments.
#SS(0) For an illegal address in the SS segment.
#PF(fault-code) For a page fault.
#NM If CR0.TS[bit 3] = 1.
#XM If an unmasked SIMD floating-point exception and CR4.OSXM-
MEXCPT[bit 10] = 1.
#UD If an unmasked SIMD floating-point exception and CR4.OSXM-
MEXCPT[bit 10] = 0.
If CR0.EM[bit 2] = 1.
If CR4.OSFXSR[bit 9] = 0.
If CPUID.01H:EDX.SSE[bit 25] = 0.
#UD If the LOCK prefix is used.
#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(0) If any part of the operand lies outside the effective address
space from 0 to FFFFH.
#NM If CR0.TS[bit 3] = 1.
#XM If an unmasked SIMD floating-point exception and CR4.OSXM-
MEXCPT[bit 10] = 1.