Intel ITANIUM ARCHITECTURE - SOFTWARE DEVELOPERS MANUAL VOLUME 1 REV 2.3 Manual page 1854

SQRTSS: Scalar Single-FP Square Root
Opcode
F3,0F,51,/r
Operation: xmm1[31-0]
xmm1[63-32]
xmm1[95-64]
xmm1[127-96] = xmm1[127-96];
The SQRTSS instructions return the square root of the lowest SP FP numbers of their
Description:
operand.
None
FP Exceptions:
Invalid, Precision, Denormal.
Numeric Exceptions:
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; #UD if CR0.EM = 1; #NM if TS bit in CR0 is set; #AC for unaligned memory
reference. To enable #AC exceptions, three conditions must be true(CR0.AM is set;
EFLAGS.AC is set; current CPL is 3); #XM for an unmasked SSE numeric exception
(CR4.OSXMMEXCPT =1); #UD for an unmasked SSE numeric exception
(CR4.OSXMMEXCPT =0); #UD if CRCR4.OSFXSR(bit 9) = 0; #UD if CPUID.XMM(EDX
bit 25) = 0.
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 SSE numeric exception (CR4.OSXMMEXCPT =1); #UD for an unmasked SSE
numeric exception (CR4.OSXMMEXCPT =0); #UD if CRCR4.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.
Additional Itanium System Environment Exceptions
Itanium Reg Faults
Itanium Mem Faults VHPT Data Fault, Data TLB Fault, Alternate Data TLB Fault, Data
4:552
Instruction
SQRTSS xmm1, xmm2/m32
= sqrt (xmm2/m32[31-0]);
= xmm1[63-32];
= xmm1[95-64];
Disabled FP Register Fault if PSR.dfl is 1, NaT Register
Consumption Fault
Page Not Present Fault, Data NaT Page Consumption Abort, Data
Key Miss Fault, Data Key Permission Fault, Data Access Rights
Fault, Data Access Bit Fault
Description
Square Root of the lower SP FP number in XMM2/Mem.
Volume 4: IA-32 SSE Instruction Reference