Attempting to decode: 0f 05 
iclass SYSCALL	category SYSCALL	ISA-extension LONGMODE	ISA-set LONGMODE
instruction-length 2
operand-width 64
effective-operand-width 64
effective-address-width 64
stack-address-width 64
iform-enum-name SYSCALL
iform-enum-name-dispatch (zero based) 0
iclass-max-iform-dispatch 1
Nominal opcode position 1
Nominal opcode 0x05
Operands
#   TYPE               DETAILS        VIS  RW       OC2 BITS BYTES NELEM ELEMSZ   ELEMTYPE   REGCLASS
#   ====               =======        ===  ==       === ==== ===== ===== ======   ========   ========
0   REG0              REG0=RIP SUPPRESSED   W         Q   64     8     1     64        INT         IP
1   REG1              REG1=RCX SUPPRESSED   W         Q   64     8     1     64        INT        GPR
2   REG2              REG2=R11 SUPPRESSED   W         Q   64     8     1     64        INT        GPR
3   REG3           REG3=RFLAGS SUPPRESSED   W         Y   64     8     1     64        INT      FLAGS
Memory Operands
  MemopBytes = 0
FLAGS:
  must-write-rflags id-mod vip-mod vif-mod ac-mod vm-0 rf-0 nt-mod iopl-mod of-mod df-mod if-mod tf-mod sf-mod zf-mod af-mod pf-mod cf-mod 
       read:                                mask=0x0
    written: of sf zf af pf cf df vif iopl if ac vm rf nt tf id vip  mask=0x3f7fd5
  undefined:                                mask=0x0
ATTRIBUTES: NOTSX 
ISA SET: [LONGMODE]
0	CPUID GROUP NAME: [LONGMODE]
	0	CPUID RECORD NAME: [INTEL64]
		{Leaf 0x80000001, subleaf 0x00000000, EDX[29:29]} = 1