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INSTRUCTION SET REFERENCE
MINPS—Packed Single-FP Minimum (Continued)
Virtual 8086 Mode Exceptions
Same exceptions as in Real Address Mode.
#PF(fault-code)For a page fault.
Comments
Note that if only one source is a NaN for these instructions, the Src2 operand (either NaN or real
value) is written to the result; this differs from the behavior for other instructions as defined in
Table 7-9 in Chapter 7, Floating-Point Unit of the Intel Architecture Software DeveloperÂ’s
Manual, Volume 1, which is to always write the NaN to the result, regardless of which source
operand contains the NaN. This approach for MINPS allows compilers to use the MINPS
instruction for common C conditional constructs. If instead of this behavior, it is required that
the NaN source operand be returned, the min/max functionality can be emulated using a
sequence of instructions: comparison followed by AND, ANDN, and OR.
