x86 Assembly Language Reference Manual

Comparison Instructions (SSE)

The SEE compare instructions compare packed and scalar single-precision floating-point operands.

Table 3–29 Comparison Instructions (SSE)

Solaris Mnemonic 

Intel/AMD Mnemonic 

Description 

Notes 

cmpps

CMPPS

compare packed single-precision floating-point values 

 

cmpss

CMPSS

compare scalar single-precision floating-point values 

 

comiss

COMISS

perform ordered comparison of scalar single-precision floating-point values and set flags in EFLAGS register 

 

ucomiss

UCOMISS

perform unordered comparison of scalar single-precision floating-point values and set flags in EFLAGS register