Intel ITANIUM ARCHITECTURE - SOFTWARE DEVELOPERS MANUAL VOLUME 1 REV 2.3 Manual page 1646

RET—Return from Procedure (Continued)
Additional Itanium System Environment Exceptions
Itanium Mem FaultsVHPT Data Fault, Nested TLB Fault, Data TLB Fault, Alternate Data
IA_32_Exception
Protected Mode Exceptions
#GP(0)
#GP(selector)
#SS(0)
#NP(selector)
#PF(fault-code)
#AC(0)
Real Address Mode Exceptions
#GP
#SS
Virtual 8086 Mode Exceptions
#GP(0)
#SS(0)
#PF(fault-code)
#AC(0)
4:344
TLB Fault, Data 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, Data Dirty Bit Fault
Taken Branch Debug Exception if PSR.tb is 1
If the return code or stack segment selector null.
If the return instruction pointer is not within the return code
segment limit
If the RPL of the return code segment selector is less then the CPL.
If the return code or stack segment selector index is not within its
descriptor table limits.
If the return code segment descriptor does not indicate a code
segment.
If the return code segment is non-conforming and the segment
selector's DPL is not equal to the RPL of the code segment's segment
selector
If the return code segment is conforming and the segment selector's
DPL greater than the RPL of the code segment's segment selector
If the stack segment is not a writable data segment.
If the stack segment selector RPL is not equal to the RPL of the
return code segment selector.
If the stack segment descriptor DPL is not equal to the RPL of the
return code segment selector.
If the top bytes of stack are not within stack limits.
If the return stack segment is not present.
If the return code segment is not present.
If a page fault occurs.
If an unaligned memory access occurs when the CPL is 3 and
alignment checking is enabled.
If the return instruction pointer is not within the return code
segment limit
If the top bytes of stack are not within stack limits.
If the return instruction pointer is not within the return code
segment limit
If the top bytes of stack are not within stack limits.
If a page fault occurs.
If an unaligned memory access occurs when alignment checking is
enabled.
Volume 4: Base IA-32 Instruction Reference