Attempting to decode: 9c 
iclass PUSHFQ	category PUSH	ISA-extension LONGMODE	ISA-set LONGMODE
instruction-length 1
operand-width 64
effective-operand-width 64
effective-address-width 64
stack-address-width 64
iform-enum-name PUSHFQ
iform-enum-name-dispatch (zero based) 0
iclass-max-iform-dispatch 1
Nominal opcode position 0
Nominal opcode 0x9c
Operands
#   TYPE               DETAILS        VIS  RW       OC2 BITS BYTES NELEM ELEMSZ   ELEMTYPE   REGCLASS
#   ====               =======        ===  ==       === ==== ===== ===== ======   ========   ========
0   REG0        REG0=STACKPUSH SUPPRESSED  RW         Q   64     8     1     64        INT     PSEUDO
1   MEM0           (see below) SUPPRESSED   W         Q   64     8     1     64        INT    INVALID
2  BASE0             BASE0=RSP SUPPRESSED  RW       SSZ   64     8     1     64        INT        GPR
3   REG1           REG1=RFLAGS SUPPRESSED   R         Y   64     8     1     64        INT      FLAGS
Memory Operands
  0 written BASE= RSP/GPR  ASZ0=64
  MemopBytes = 8
FLAGS:
   reads-rflags id-tst vip-tst vif-tst ac-tst vm-tst rf-tst nt-tst iopl-tst iopl-tst of-tst df-tst if-tst tf-tst sf-tst zf-tst af-tst pf-tst cf-tst 
       read: of sf zf af pf cf df vif iopl if ac vm rf nt tf id vip  mask=0x3f7fd5
    written:                                mask=0x0
  undefined:                                mask=0x0
READS ZF
ATTRIBUTES: FIXED_BASE0 STACKPUSH0 
ISA SET: [LONGMODE]
0	CPUID GROUP NAME: [LONGMODE]
	0	CPUID RECORD NAME: [INTEL64]
		{Leaf 0x80000001, subleaf 0x00000000, EDX[29:29]} = 1