Intel 64 and IA-32 Architectures Software Developers Manual Volume 2B, Instruction Set Reference, N-Z

Vol. 2B 4-371
INSTRUCTION SET REFERENCE, N-Z
SS(PL) ← 0x3;
RIP ← RCX;
ELSE (* Return to Compatibility Mode *)
EFLAGS ← R11;
CPL ← 0x3;
CS(SEL) ← IA32_STAR[63:48] ;
CS(PL) ← 0x3;
SS(SEL) ← IA32_STAR[63:48] + 8;
SS(PL) ← 0x3;
EIP ← ECX;
FI;
Flags Affected
VM, IF, RF.
Protected Mode Exceptions
#UD If Mode ≠ 64-Bit.
Real-Address Mode Exceptions
#UD Instruction not recognized in this mode.
Virtual-8086 Mode Exceptions
#UD Instruction not recognized in this mode.
Compatibility Mode Exceptions
#UD Instruction not recognized in this mode.
64-Bit Mode Exceptions
#UD If IA32_EFER.SCE bit = 0.
#GP(0) If CPL ≠ 0.
If ECX contains a non-canonical address.