Intel 253666-024US - Manual (Page 350)

3-304 Vol. 2A FCMOVcc—Floating-Point Conditional Move
INSTRUCTION SET REFERENCE, A-M
Operation
IF condition TRUE
THEN ST(0) ← ST(i);
FI;
FPU Flags Affected
C1 Set to 0 if stack underflow occurred.
C0, C2, C3 Undefined.
Floating-Point Exceptions
#IS Stack underflow occurred.
Integer Flags Affected
None.
Protected Mode Exceptions
#NM CR0.EM[bit 2] or CR0.TS[bit 3] = 1.
#UD If the LOCK prefix is used.
Real-Address Mode Exceptions
Same exceptions as in protected mode.
Virtual-8086 Mode Exceptions
Same exceptions as in protected mode.
Compatibility Mode Exceptions
Same exceptions as in protected mode.
64-Bit Mode Exceptions
Same exceptions as in protected mode.