== [    BASIC ] ============================================================================================
   MNEMONIC: fist [ENC: DEFAULT, MAP: DEFAULT, OPC: 0xDF]
     LENGTH:  3
        SSZ: 64
       EOSZ: 32
       EASZ: 64
   CATEGORY: X87_ALU
    ISA-SET: X87
    ISA-EXT: X87
 EXCEPTIONS: NONE
 ATTRIBUTES: HAS_MODRM CPUFLAG_ACCESS ACCEPTS_SEGMENT 
  OPTIMIZED: DF 17 

== [ OPERANDS ] ============================================================================================
##       TYPE  VISIBILITY  ACTION      ENCODING   SIZE  NELEM  ELEMSZ  ELEMTYPE                        VALUE
--  ---------  ----------  ------  ------------   ----  -----  ------  --------  ---------------------------
 0     MEMORY    EXPLICIT       W      MODRM_RM     16      1      16       INT  TYPE  =                 MEM
                                                                                 SEG   =                  ds
                                                                                 BASE  =                 rdi
                                                                                 INDEX =                none
                                                                                 SCALE =                   0
                                                                                 DISP  =  0x0000000000000000
 1   REGISTER      HIDDEN       R          NONE     80      1      80   FLOAT80                          st0
 2   REGISTER      HIDDEN       W          NONE     16      1      16    STRUCT                    x87status
--  ---------  ----------  ------  ------------   ----  -----  ------  --------  ---------------------------

== [    FLAGS ] ============================================================================================
    ACTIONS: [C0  : U  ] [C1  : M  ] [C2  : U  ] [C3  : U  ] 
       READ: 0x00000000
    WRITTEN: 0x00000000

== [      ATT ] ============================================================================================
   ABSOLUTE: fist (%rdi)
   RELATIVE: fist (%rdi)

== [    INTEL ] ============================================================================================
   ABSOLUTE: fist word ptr ds:[rdi]
   RELATIVE: fist word ptr ds:[rdi]

== [ SEGMENTS ] ============================================================================================
26 DF 17 
:  :  :..MODRM
:  :..OPCODE
:..PREFIXES