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iis.htm
Enumerations
IisList
Instruction handlers
ALTINST ARPL BNDCL BNDCN BNDCU BNDLDX BNDMK BNDMOV BNDSTX CL1INVMB CLAC CLFLUSH CLFLUSHOPT CLTS CLZERO ENCLS ENCLU GETSEC HCF HINT_NOP HINT_NOPD HINT_NOPQ HINT_NOPW IBTS INVD INVLPG JMPE LAR LFENCE LGDT LIDT LLDT LMSW LOADALL LOADALL286 LSL LTR MFENCE MONITOR MONITORX MWAIT MWAITX NOP NOP1 NOP2 NOP3 NOP4 NOP5 NOP6 NOP7 NOP8 NOP9 PAUSE PREFETCH PREFETCHNTA PREFETCHT0 PREFETCHT1 PREFETCHT2 PREFETCHW PREFETCHWT1 RDMSR RDPKRU RDPMC RDRAND RDSEED RDTSC RDTSCP RSM SFENCE SGDT SIDT SLDT SMSW STAC STR SWAPGS SYSCALL SYSENTER SYSEXIT SYSRET UD0 UD1 UD2 UD2A UD2B VERR VERW WBINVD WRMSR WRPKRU XBTS

↑ IisHandlers
assemble system machine instructions.
See also
IiHandlers, [RoseCompiler]
iis PROGRAM FORMAT=COFF,MODEL=FLAT,WIDTH=32
 INCLUDEHEAD "euroasm.htm" ; Interface (structures, symbols and macros) of other modules.

iis HEAD ; Start of module interface.
↑ %IisList
enumerates machine instructions of this family which €ASM can assemble.
Each instruction declared in %IisList requires the corresponding handler in this file.
See also
DictLookupIi
%IisList %SET \
NOP, \
NOP1, \
NOP2, \
NOP3, \
NOP4, \
NOP5, \
NOP6, \
NOP7, \
NOP8, \
NOP9, \
ALTINST, \
ARPL, \
BNDCL, \
BNDCN, \
BNDCU, \
BNDLDX, \
BNDMK, \
BNDMOV, \
BNDSTX, \
CL1INVMB, \
CLAC, \
CLFLUSH, \
CLFLUSHOPT, \
CLTS, \
CLZERO, \
ENCLS, \
ENCLU, \
GETSEC, \
HCF, \
HINT_NOP, \
HINT_NOPD, \
HINT_NOPQ, \
HINT_NOPW, \
IBTS, \
INVD, \
INVLPG, \
JMPE, \
LAR, \
LFENCE, \
LGDT, \
LIDT, \
LLDT, \
LMSW, \
LOADALL, \
LOADALL286, \
LSL, \
LTR, \
MFENCE, \
MONITOR, \
MONITORX, \
MWAIT, \
MWAITX, \
PAUSE, \
PREFETCH, \
PREFETCHNTA, \
PREFETCHT0, \
PREFETCHT1, \
PREFETCHT2, \
PREFETCHW, \
PREFETCHWT1, \
RDMSR, \
RDPKRU, \
RDPMC, \
RDRAND, \
RDSEED, \
RDTSC, \
RDTSCP, \
RSM, \
SFENCE, \
SGDT, \
SIDT, \
SLDT, \
SMSW, \
STAC, \
STR, \
SWAPGS, \
SYSCALL, \
SYSENTER, \
SYSEXIT, \
SYSRET, \
UD0, \
UD1, \
UD2, \
UD2A, \
UD2B, \
VERR, \
VERW, \
WBINVD, \
WRMSR, \
WRPKRU, \
XBTS, \

;
  ENDHEAD iis ; End of module interface.
↑ MONITOR
Set Up Monitor Address
Description
MONITOR
Opcode
0x0F01C8
CPU
P4++
Tested by
t3415 t4140
IisMONITOR:: PROC
    IiRequire 686
    IiEmitOpcode 0x0F,0x01,0xC8
    IiDispatchFormat none
.none:RET
 ENDP IisMONITOR::
↑ MWAIT
Monitor Wait
Description
MWAIT
Category
sync
Opcode
0x0F01C9
CPU
P4++
Tested by
t3415 t4140
IisMWAIT:: PROC
    IiRequire 686
    IiEmitOpcode 0x0F,0x01,0xC9
    IiDispatchFormat none
.none:RET
 ENDP IisMWAIT::
↑ MONITORX
Setup Monitor Address
Documented
AMD
Tested by
t3415 t4140
IisMONITORX:: PROC
    IiRequire 686,AMD
    IiEmitOpcode 0x0F,0x01,0xFA
    IiDispatchFormat none
.none:RET
 ENDP IisMONITORX::
↑ MWAITX
Monitor Wait with Timeout
Documented
AMD
Tested by
t3415 t4140
IisMWAITX:: PROC
    IiRequire 686,AMD
    IiEmitOpcode 0x0F,0x01,0xFB
    IiDispatchFormat none
.none:RET
 ENDP IisMWAITX::
↑ LFENCE
Load Fence
Description
LFENCE
Category
order
Opcode
0x0FAEE8
CPU
P4+
Tested by
t3415 t4140
IisLFENCE:: PROC
    IiRequire 686,SSE2
    IiEmitOpcode 0x0F,0xAE,0xE8
    IiDispatchFormat none
.none:RET
 ENDP IisLFENCE::
↑ MFENCE
Memory Fence
Description
MFENCE
Category
order
Opcode
0x0FAEF0
CPU
P4+
Tested by
t3415 t4140
IisMFENCE:: PROC
    IiRequire 686,SSE2
    IiEmitOpcode 0x0F,0xAE,0xF0
    IiDispatchFormat none
.none:RET
 ENDP IisMFENCE::
↑ SFENCE
Store Fence
Description
SFENCE
Category
order
Opcode
0x0FAEF8
CPU
P3+
Tested by
t3415 t4140
IisSFENCE:: PROC
    IiRequire 686,SSE1
    IiEmitOpcode 0x0F,0xAE,0xF8
    IiDispatchFormat none
.none:RET
 ENDP IisSFENCE::
↑ PAUSE
Spin Loop Hint
Description
PAUSE
Category
cachect
Opcode
0xF390
CPU
P4+
Tested by
t3415 t4140
IisPAUSE:: PROC
    IiRequire 686,SSE2
    IiEmitOpcode 0xF3,0x90
    IiDispatchFormat none
.none:RET
 ENDP IisPAUSE::
↑ ARPL
Adjust RPL Field of Segment Selector
Description
ARPL
Category
system
Operands
Ew,Gw
Opcode
0x63 /r
Flags
modified:....Z..., defined:....Z...
CPU
286+
Tested by
t3403
IisARPL:: PROC
    IiAbortIf64
    IiRequire 286,PROT
    IiEncoding DATA=WORD
    IiEmitOpcode 0x63
    IiOpEn MR
    IiModRM /r
    IiDispatchFormat r16.r16, mem.r16:
.mem.r16:
.r16.r16:
    RET
 ENDP IisARPL::
↑ CLTS
Clear Task-Switched Flag in CR0
Description
CLTS
Category
system
Operands
CR0
Opcode
0x0F06
CPU
02+
Tested by
t3403
IisCLTS:: PROC
    IiRequire 286,PRIV
    IiEmitOpcode 0x0F,0x06
    IiDispatchFormat none
.none:RET
 ENDP IisCLTS::
↑ INVD
Invalidate Internal Caches
Description
INVD
Category
system
Opcode
0x0F08
CPU
04+
Tested by
t3403
IisINVD:: PROC
    IiRequire 486,PRIV
    IiEmitOpcode 0x0F,0x08
    IiDispatchFormat none
.none:RET
 ENDP IisINVD::
↑ INVLPG
Invalidate TLB Entry
Description
INVLPG
Category
system
Operands
M
Opcode
0x0F01 /7
CPU
04+
Tested by
t3403
IisINVLPG:: PROC
    IiRequire 486,PRIV
    IiEmitOpcode 0x0F,0x01
    IiOpEn M
    IiModRM /7
    IiDispatchFormat mem
.mem:RET
 ENDP IisINVLPG::
↑ LAR
Load Access Rights Byte
Description
LAR
Category
system
Operands
Gvqp,Mw | Gvqp,Rv
Opcode
0x0F02 /r | 0x0F02 /r
Flags
modified:....Z..., defined:....Z...
CPU
02+
Tested by
t3406
IisLAR:: PROC
    MOV CL,0x02 ; Secondary opcode.
.op:IiRequire 286,PROT
    IiEncoding DATA=WORD
    IiDataSize Operand1, SpecifyMem=OFF
    IiEmitOpcode 0x0F,ECX
    IiOpEn RM
    IiModRM /r
    IiDispatchFormat \
       r16.mem,r16.r16,r16.r32,r16.r64,\
       r32.mem,r32.r16,r32.r32,r32.r64,\
       r64.mem,r64.r16,r64.r32,r64.r64
.r16.mem:
.r16.r16:
.r16.r32:
.r16.r64:
.r32.mem:
.r32.r16:
.r32.r32:
.r32.r64:
.r64.mem:
.r64.r16:
.r64.r32:
.r64.r64
    RET
 ENDP IisLAR::
↑ LSL
Load Segment Limit
Description
LSL
Category
system
Operands
Gvqp,Mw | Gvqp,Rv
Opcode
0x0F03 /r | 0x0F03 /r
Flags
modified:....Z..., defined:....Z...
CPU
02+
Tested by
t3406
IisLSL:: PROC
    MOV CL,0x03 ; Secondary opcode.
    JMP IisLAR.op:
 ENDP IisLSL::
↑ LMSW
Load Machine Status Word
Description
LMSW
Category
system
Operands
MSW,Ew
Opcode
0x0F01 /6
CPU
02+
Tested by
t3421
IisLMSW:: PROC
     IiRequire 286,PRIV
     IiModRM /6
.ld: IiEncoding DATA=WORD ; Width of memory operand is always 16 bits.
     IiEmitOpcode 0x0F,0x01
     IiOpEn M
     IiDispatchFormat r16, r32, r64, mem
.mem:
.r64:
.r32:
.r16:
     RET
 ENDP IisLMSW::
↑ SMSW
Store Machine Status Word
Description
SMSW
Category
system
Operands
Mw,MSW | Rvqp,MSW
Opcode
0x0F01 /4 | 0x0F01 /4
CPU
02+
Documented
D21
Tested by
t3421
IisSMSW:: PROC
     IiRequire 086
     IiModRM /4
     CMP DL,mem
     JE IisLMSW.ld:
     IiDataSize Operand1
     JMP IisLMSW.ld:
 ENDP IisSMSW::
↑ RDMSR
Read from Model Specific Register
Description
RDMSR
Category
system
Operands
rAX,rDX,rCX,MSR
Opcode
0x0F32
CPU
P1+
Tested by
t3418
IisRDMSR:: PROC
    IiRequire 586,PRIV
    IiEmitOpcode 0x0F,0x32
    IiDispatchFormat none
.none:RET
 ENDP IisRDMSR::
↑ WRMSR
Write to Model Specific Register
Description
WRMSR
Category
system
Operands
MSR,rCX,rAX,rDX
Opcode
0x0F30
CPU
P1+
Tested by
t3418
IisWRMSR:: PROC
    IiRequire 586,PRIV
    IiEmitOpcode 0x0F,0x30
    IiDispatchFormat none
.none:RET
 ENDP IisWRMSR::
↑ RDTSC
Read Time-Stamp Counter
Description
RDTSC
Category
system
Operands
EAX,EDX,I...
Opcode
0x0F31
CPU
P1+
Tested by
t3418
IisRDTSC:: PROC
    IiRequire 586
    IiEmitOpcode 0x0F,0x31
    IiDispatchFormat none
.none:RET
 ENDP IisRDTSC::
↑ RDTSCP
Read Time-Stamp Counter and Processor ID
Description
RDTSCP
Category
system
Operands
EAX,EDX,ECX,...
Opcode
0x0F01F9
CPU
C7+
Tested by
t3418
IisRDTSCP:: PROC
    IiRequire 686
    IiEmitOpcode 0x0F,0x01,0xF9
    IiDispatchFormat none
.none:RET
 ENDP IisRDTSCP::
↑ RSM
Resume from System Management Mode
Description
RSM
Category
system,branch
Operands
Fw
Opcode
0x0FAA
CPU
03++
Tested by
t3418 t4205
IisRSM:: PROC
    IiRequire 586,PRIV
    IiEmitOpcode 0x0F,0xAA
    IiDispatchFormat none
.none:RET
 ENDP IisRSM::
↑ RDRAND
Read Random Number
Description
RDRAND
Operands
reg
Opcode
0x0FC7 /6
Documented
Intel
Tested by
t3418
IisRDRAND:: PROC
    IiRequire 686, SPEC
    IiEmitOpcode 0x0F,0xC7
    IiDataSize Operand1
    IiOpEn M
    IiModRM /6
    IiDispatchFormat r16, r32, r64
.r64:
.r32:
.r16:
    RET
 ENDP IisRDRAND::
↑ LGDT
Load Global Descriptor Table Register
Description
LGDT
Category
system
Operands
GDTR,Ms
Opcode
0x0F01 /2
CPU
02+
Tested by
t3409
IisLGDT:: PROC
     IiModRM /2
.pv: IiRequire PRIV
.np: IiRequire 286  ; Entry for non-privileged instructions.
     IiOpEn M
     IiEmitOpcode 0x0F,0x01
     IiDispatchFormat mem
.mem:RET
 ENDP IisLGDT::
↑ LIDT
Load Interrupt Descriptor Table Register
Description
LIDT
Category
system
Operands
IDTR,Ms
Opcode
0x0F01 /3
CPU
02+
Tested by
t3409
IisLIDT:: PROC
    IiModRM /3
    JMP IisLGDT.pv:
 ENDP IisLIDT::
↑ SGDT
Store Global Descriptor Table Register
Description
SGDT
Category
system
Operands
Ms,GDTR
Opcode
0x0F01 /0
CPU
02+
Tested by
t3409
IisSGDT:: PROC
    IiModRM /0
    JMP IisLGDT.np:
 ENDP IisSGDT::
↑ SIDT
Store Interrupt Descriptor Table Register
Description
SIDT
Category
system
Operands
Ms,IDTR
Opcode
0x0F01 /1
CPU
02+
Tested by
t3409
IisSIDT:: PROC
    IiModRM /1
    JMP IisLGDT.np:
 ENDP IisSIDT::
↑ SLDT
Store Local Descriptor Table Register
Description
SLDT
Category
system
Operands
Mw,LDTR | Rvqp,LDTR
Opcode
0x0F00 /0 | 0x0F00 /0
CPU
02+
Tested by
t3412
IisSLDT:: PROC
     IiModRM /0
 .rm:IiRequire 286
     IiEmitOpcode 0x0F,0x00
     IiEncoding DATA=WORD
     IiOpEn M
     IiDispatchFormat r16, r32, r64, mem
.r64:
.r32:
.r16:IiDataSize Operand1, SpecifyMem=OFF
.mem:RET
 ENDP IisSLDT::
↑ STR
Store Task Register
Description
STR
Category
system
Operands
Mw,TR | Rvqp,TR
Opcode
0x0F00 /1 | 0x0F00 /1
CPU
02+
Tested by
t3412
IisSTR:: PROC
    IiModRM /1
    JMP IisSLDT.rm:
 ENDP IisSTR::
↑ LLDT
Load Local Descriptor Table Register
Description
LLDT
Category
system
Operands
LDTR,Ew
Opcode
0x0F00 /2
CPU
02+
Tested by
t3412
IisLLDT:: PROC
    IiModRM /2
    IiRequire PRIV
.rm:IiRequire 286,PROT
    IiEncoding DATA=WORD
    IiEmitOpcode 0x0F,0x00
    IiOpEn M
    IiDispatchFormat r16, r32, r64, mem
.r64:
.r32:
.r16:
.mem:RET
 ENDP IisLLDT::
↑ LTR
Load Task Register
Description
LTR
Category
system
Operands
TR,Ew
Opcode
0x0F00 /3
CPU
02+
Tested by
t3412
IisLTR:: PROC
    IiModRM /3
    IiRequire PRIV
    JMP IisLLDT.rm:
 ENDP IisLTR::
↑ VERR
Verify a Segment for Reading
Description
VERR
Category
system
Operands
Ew
Opcode
0x0F00 /4
Flags
modified:....Z..., defined:....Z...
CPU
02+
Tested by
t3433
IisVERR:: PROC
    IiModRM /4
    JMP IisLLDT.rm:
 ENDP IisVERR::
↑ VERW
Verify a Segment for Writing
Description
VERW
Category
system
Operands
Ew
Opcode
0x0F00 /5
Flags
modified:....Z..., defined:....Z...
CPU
02+
Tested by
t3433
IisVERW:: PROC
    IiModRM /5
    JMP IisLLDT.rm:
 ENDP IisVERW::
↑ SYSCALL
Fast System Call
Description
SYSCALL
Category
system,branch
Operands
RCX,R11,SS,...
Opcode
0x0F05
CPU
P4+
Documented
D23
See also
LOADALL286
Tested by
t3427
IisSYSCALL:: PROC
    MOV CL,0x05
.op:IiRequire 686
    IiEmitOpcode 0x0F,ECX
    IiDispatchFormat none
.none:RET
 ENDP IisSYSCALL::
↑ SYSRET
Return From Fast System Call
Description
SYSRET
Category
system,branch,trans
Operands
SS,Fd,R11,...
Opcode
0x0F07
CPU
P4+
See also
LOADALL
Tested by
t3427
IisSYSRET:: PROC
    IiRequire PRIV
    MOV CL,0x07
    JMP IisSYSCALL.op:
 ENDP IisSYSRET::
↑ RDPMC
Read Performance-Monitoring Counters
Description
RDPMC
Category
system
Operands
EAX,EDX,PMC
Opcode
0x0F33
CPU
PX+
Tested by
t3418 t3427
IisRDPMC:: PROC
    MOV CL,0x33
    JMP IisSYSCALL.op:
 ENDP IisRDPMC::
↑ SYSENTER
Fast System Call
Description
SYSENTER
Category
system,branch
Operands
SS,ESP,I...,... | SS,RSP,I...,...
Opcode
0x0F34 ^Sr | 0x0F34 ^Sr
Flags
modified:..I....., defined:..I....., values:..I.....
CPU
P2+
Tested by
t3427
IisSYSENTER:: PROC
    MOV CL,0x34
    JMP IisSYSCALL.op:
 ENDP IisSYSENTER::
↑ SYSEXIT
Fast Return from Fast System Call
Description
SYSEXIT
Category
system,branch,trans
Operands
SS,eSP,I...,...
Opcode
0x0F35 ^Sr
CPU
P2+
Documented
D29
Tested by
t3427
IisSYSEXIT:: PROC
    IiRequire PRIV
    MOV CL,0x35
    JMP IisSYSCALL.op:
 ENDP IisSYSEXIT::
↑ GETSEC
GETSEC Leaf Functions
Category
smx
Operands
EAX
Opcode
0x0F37
CPU
C2++
Documented
D30
See also
WRSHR (same opcode)
Tested by
t3427
IisGETSEC:: PROC
    MOV CL,0x37
    JMP IisSYSCALL.op:
 ENDP IisGETSEC::
↑ WBINVD
Write Back and Invalidate Cache
Description
WBINVD
Category
system
Opcode
0x0F09
CPU
04+
Tested by
t3403
IisWBINVD:: PROC
    IiRequire 486,PRIV
    IiEmitOpcode 0x0F,0x09
    IiDispatchFormat none
.none:RET
 ENDP IisWBINVD::
↑ UD0
Undefined Instruction
Category
system, undoc
Opcode
0x0FFF
Documented
Cyrix, AMD
Tested by
t3424
IisUD0:: PROC
    IiRequire 186,UNDOC
    IiEmitOpcode 0x0F,0xFF
    IiDispatchFormat none
.none:RET
 ENDP IisUD0::
↑ UD1
Undefined Instruction
Operands
system, undoc
Opcode
0x0FB9
Documented
X86_instruction_listings
Tested by
t3424
IisUD1:: PROC
    IiRequire 186,UNDOC
    IiEmitOpcode 0x0F,0xB9
    IiDispatchFormat none
.none:RET
 ENDP IisUD1::
↑ UD2
Undefined Instruction
Description
UD2
Category
gen,control
Opcode
0x0F0B
CPU
02+
Documented
Intel
Tested by
t3424
IisUD2:: PROC
    IiRequire 186
    IiEmitOpcode 0x0F,0x0B
    IiDispatchFormat none
.none:RET
 ENDP IisUD2::
↑ UD2A
Undefined Instruction
Operands
-
Opcode
0x0F0B
CPU
186
Tested by
t3424
IisUD2A:: PROC
    JMP IisUD2
 ENDP IisUD2A::
↑ UD2B
Undefined Instruction
Operands
-
Opcode
0x0FB9
CPU
186
Tested by
t3424
IisUD2B:: PROC
    JMP IisUD1
 ENDP IisUD2B::
↑ CLFLUSH
Flush Cache Line
Description
CLFLUSH
Category
sse2,cachect
Operands
Mb
Opcode
0x0FAE /7
CPU
P4+
Tested by
t3436
IisCLFLUSH:: PROC
     IiRequire SSE2
     IiEmitOpcode 0x0F,0xAE
     IiOpEn M
     IiModRM /7
     IiDispatchFormat mem
.mem:RET
 ENDP IisCLFLUSH::
↑ LOADALL286
Load system data from address 80h:0 .. 80h:66h
Category
system, undoc
Operands
-
Opcode
0x0F05
CPU
286 only
Documented
Wikipedia, rcollings.org
See also
SYSCALL
Tested by
t3439
IisLOADALL286:: PROC
    IiRequire 286,UNDOC
    IiEmitOpcode 0x0F,0x05
    IiDispatchFormat none
.none:RET
 ENDP IisLOADALL286::
↑ LOADALL
Load All of the CPU Registers from ES:EDI
Category
system, undoc
Operands
-
Opcode
0x0F07
CPU
386
Documented
U 22 Wikipedia, rcollings.org
See also
SYSRET
Tested by
t3439
IisLOADALL:: PROC
    IiRequire 386,UNDOC
    IiEmitOpcode 0x0F,0x07
    IiDispatchFormat none
.none:RET
 ENDP IisLOADALL::
↑ PREFETCH
Prefetch L1 Data-Cache Line
Category
system, AMD
Operands
mem
Opcode
0x0F0D /0
CPU
586
Tested by
t3430
IisPREFETCH:: PROC
     IiModRM /0
.rm: IiRequire 586,D3NOW,AMD
     IiEmitOpcode 0x0F,0x0D
     IiOpEn M
     IiDispatchFormat mem
.mem:RET
 ENDP IisPREFETCH::
↑ PREFETCHW
Prefetch Data into Caches in Anticipation of a Write
Description
PREFETCHW
Category
system
Operands
mem
Opcode
0x0F0D /1
CPU
586
Tested by
t3430
IisPREFETCHW:: PROC
     IiModRM /1
     JMP IisPREFETCH.rm:
 ENDP IisPREFETCHW::
↑ PREFETCHWT1
Prefetch Vector Data Into Caches with Intent to Write and T1 Hint
Description
PREFETCHWT1
Category
system, undoc
Operands
mem
CPU
686
Documented
felixcloutier.com
Tested by
t3430
IisPREFETCHWT1:: PROC
     IiRequire 686,UNDOC
     IiModRM /2
     JMP IisPREFETCH.rm:
 ENDP IisPREFETCHWT1::
↑ PREFETCHNTA
Prefetch Data Into Caches
Category
sse1,fetch
Operands
Mb
Opcode
0x0F18 /0
CPU
P3+
Tested by
t3430
IisPREFETCHNTA:: PROC
     IiModRM /0
.rm: IiRequire 686
     IiOpEn M
     IiEmitOpcode 0x0F,0x18
     IiDispatchFormat mem
.mem:RET
 ENDP IisPREFETCHNTA::
↑ PREFETCHT0
Prefetch Data Into Caches
Category
sse1,fetch
Operands
Mb
Opcode
0x0F18 /1
CPU
P3+
Tested by
t3430
IisPREFETCHT0:: PROC
     IiModRM /1
     JMP IisPREFETCHNTA.rm:
 ENDP IisPREFETCHT0::
↑ PREFETCHT1
Prefetch Data Into Caches
Category
sse1,fetch
Operands
Mb
Opcode
0x0F18 /2
CPU
P3+
Tested by
t3430
IisPREFETCHT1:: PROC
     IiModRM /2
     JMP IisPREFETCHNTA.rm:
 ENDP IisPREFETCHT1::
↑ PREFETCHT2
Prefetch Data Into Caches
Category
sse1,fetch
Operands
Mb
Opcode
0x0F18 /3
CPU
P3+
Tested by
t3430
IisPREFETCHT2:: PROC
     IiModRM /3
     JMP IisPREFETCHNTA.rm:
 ENDP IisPREFETCHT2::
↑ SWAPGS
Swap GS Base Register
Description
SWAPGS
Category
system
Operands
GS,I...
Opcode
0x0F01F8
CPU
P4+
Tested by
t3436
IisSWAPGS:: PROC
    IiRequire X64,PRIV
    IiAbortIfNot64
    IiEmitOpcode 0x0F,0x01,0xF8
    IiDispatchFormat none
.none:RET
 ENDP IisSWAPGS::
↑ JMPE
Jump to IA-64 Instruction Set
Category
system,branch
Operands
r/m16 | r/m32 | imm16/imm32
Opcode
0x0F00 /6 | 0x0FB8 imm
CPU
IT+
See also
JMP, IitXBEGIN.
Tested by
t3155 t3156 t3157
Invokes
IiRelocSizeRIP
IisJMPE:: PROC
     IiRequire X64,UNDOC
     IiAllowModifier DIST,ADDR,DATA
     IiEncoding DIST=NEAR
     IiEmitOpcode 0x0F
     CMP DL,imm
     JE .imm:
     IiDataSize Operand1, UseSegment=ON
     IiDispatchFormat r16,r32,r64,m16,m32,m64
.m64:
.r64:IiDispatchWidth BITS64=.m16:
     IiAbort '6735' ; Required operand width 16 of this instruction cannot be used in 64bit mode.
.m16:
.r16:
.m32:
.r32:
     IiEmitOpcode 0x00
     IiOpEn M
     IiModRM /6
     RET
.imm:IiEmitOpcode 0xB8
     IiAllowModifier IMM
.rel::MOV EAX,[EDI+II.Operand1+EXP.Low]     ; Also entry point for IitXBEGIN.
     MOV EDX,[EDI+II.Operand1+EXP.High]
     MOV [EDI+II.ImmLow],EAX
     MOV [EDI+II.ImmHigh],EDX
     MOV EDX,[EBX+STM.Section] ; Current section.
     MOV EBP,[EDI+II.Operand1+EXP.Seg] ; Target segment.
     MOV EAX,[EDX+SSS.SegmPtr] ; Segment of the current JMPE instruction.
     MOV [EDI+II.ImmRelocSeg],EBP
     CMP EBP,EAX
     MOV EAX,iiRelocImmRIP
     JE .Im: ; If EBP=EAX, use intrasegment call, no RELOC record.
     MOV EAX,iiRelocImmRel ; Otherwise encode immediate as relocable value.
.Im: SetSt [EDI+II.Reloc],EAX ; Set type of relocation.
     Invoke IiRelocSizeRIP::,EDI,EBX ; Inspect Imm-RIP magnitude and set iiMfgIMM_Mask to EAX.
     IiDispatchWidth BITS32=.Im.32:, BITS64=.Im.64:
.Im.16:JSt [EDI+II.MfgExplicit],iiMfgIMM_DWORD|iiMfgDATA_DWORD,.Ipr: ; Prolong on explicit request.
     JSt EAX,iiMfgIMM_DWORD,.Ipr: ; Prolong when distance is not word-encodable.
.ImW:SetSt [EDI+II.MfgEmitted],iiMfgDIST_NEAR+iiMfgADDR_REL+iiMfgDATA_WORD+iiMfgIMM_WORD ; Use 16bit near jump.
     RET
.Ipr:IiEmitPrefix OTOGGLE
.ImD:SetSt [EDI+II.MfgEmitted],iiMfgDIST_NEAR+iiMfgADDR_REL+iiMfgDATA_DWORD+iiMfgIMM_DWORD ; Use 32bit near jump.
     RET
.Im.32:JNSt [EDI+II.MfgExplicit],iiMfgIMM_WORD|iiMfgDATA_WORD,.ImD:
     JSt EAX,iiMfgIMM_DWORD,.ImD: ; Though explicitly requested IMM=WORD, the distance is above 64K.
     IiEmitPrefix OTOGGLE
     JMP .ImW:
.Im.64:SetSt [EDI+II.MfgEmitted],iiMfgDIST_NEAR+iiMfgADDR_REL+iiMfgIMM_DWORD+iiMfgDATA_QWORD
     RET
 ENDP IisJMPE::
↑ HCF
Halt and Catch Fire
Category
UNDOC
Opcode
0xF00FC7C8
CPU
PENT
Documented
saylor.org
See also
CMPXCHG8B
Tested by
t3403
IisHCF:: PROC
    IiRequire UNDOC
    IiEmitPrefix LOCK
    IiEmitOpcode 0x0F,0xC7,0xC8
    IiDispatchFormat none
.none:RET
  ENDP IisHCF::
↑ BNDLDX
Loading bounds register from memory
Category
MPX
Operands
bndreg,mem
Opcode
0x0F1A /r
Tested by
t4315
IisBNDLDX:: PROC
    MOV CL,0x1A
.op:IiRequire MPX
    IiEmitOpcode 0x0F,ECX
    IiOpEn RM
    IiModRM /r
    IiDispatchFormat bnd.mem
.bnd.mem:RET
 ENDP IisBNDLDX::
↑ BNDLDX
Saving bound pair for bounds register
Category
MPX
Operands
bndreg, mem
Opcode
0xF30F1B /r
Tested by
t4310
IisBNDMK:: PROC
    IiEmitPrefix REPE
    MOV CL,0x1B
    JMP IisBNDLDX.op:
 ENDP IisBNDMK::
↑ BNDSTX
Saving bounds register to memory
Category
MPX
Operands
mem,bndreg
Opcode
0x0F1B /r
Tested by
t4315
IisBNDSTX:: PROC
    IiRequire MPX
    IiEmitOpcode 0x0F,0x1B
    IiOpEn MR
    IiModRM /r
    IiDispatchFormat mem.bnd
.mem.bnd:RET
 ENDP IisBNDSTX::
↑ BNDCL
Checking lower bound with bounds register lower value and operands
Category
MPX
Operands
bndreg,r/mem
Opcode
0xF30F1A /r
Tested by
t4310
IisBNDCL:: PROC
    IiEmitPrefix REPE
    MOV CL,0x1A
.op:IiRequire MPX
    IiEmitOpcode 0x0F,ECX
    IiOpEn RM
    IiModRM /r
    IiDispatchFormat bnd.mem,bnd.r32,bnd.r64
.bnd.mem:
.bnd.r32:
.bnd.r64:
    RET
 ENDP IisBNDCL::
↑ BNDCU
Checking upper bound with bounds register upper value and operands
Category
MPX
Operands
bndreg,r/mem
Opcode
0xF20F1A /r
Tested by
t4310
IisBNDCU:: PROC
    MOV CL,0x1A
.op:IiEmitPrefix REPNE
    JMP IisBNDCL.op:
 ENDP IisBNDCU::
↑ BNDCN
Checking upper bound with bounds register upper value and operands
Category
MPX
Operands
bndreg,r/mem
Opcode
0xF20F1B /r
Tested by
t4310
IisBNDCN:: PROC
    MOV CL,0x1B
    JMP IisBNDCU.op:
 ENDP IisBNDCN::
↑ BNDMOV
Accessing bounds register
Category
MPX
Operands
bndreg,bndreg/mem || bndreg/mem, bndreg
Opcode
0x660F1A /r || 0x660F1B /r
Tested by
t4315
IisBNDMOV:: PROC
    IiRequire MPX
    IiAllowModifier CODE
    IiEmitPrefix OTOGGLE
    IiEmitOpcode 0x0F
    IiModRM /r
    IiDispatchFormat bnd.mem, mem.bnd, bnd.bnd
.mem.bnd:
    IiEncoding CODE=LONG
    IiEmitOpcode 0x1B
    IiOpEn MR
    RET
.bnd.bnd:
    IiDispatchCode LONG=.mem.bnd:
.bnd.mem:
    IiEncoding CODE=SHORT
    IiEmitOpcode 0x1A
    IiOpEn RM
    RET
 ENDP IisBNDMOV::
↑ ENCLU
Execute an Enclave User Function of Specified Leaf Number
Category
SGX
Operands
implicit EAX
Opcode
0x0F01D7
Tested by
t4330
IisENCLU:: PROC
    IiRequire PRIV, SGX
    IiEmitOpcode 0x0F,0x01,0xD7
    IiDispatchFormat none 
.none:RET
  ENDP IisENCLU::
↑ ENCLS
Execute an Enclave System Function of Specified Leaf Number
Category
SGX
Operands
implicit EAX
Opcode
0x0F01CF
Tested by
t4330
IisENCLS:: PROC
    IiRequire PRIV,SGX
    IiEmitOpcode 0x0F,0x01,0xCF
    IiDispatchFormat none 
.none:RET
 ENDP IisENCLS::
↑ CLAC
CLear Access prevention Control flag
Description
CLAC
Operands
-
Opcode
0x0F01CA
Tested by
t4330
IisCLAC:: PROC
    IiRequire 686, SPEC
    IiEmitOpcode 0x0F,0x01,0xCA
    IiDispatchFormat none 
.none:RET
 ENDP IisCLAC::
↑ STAC
SeT Access prevention Control flag
Description
STAC
Operands
-
Opcode
0x0F01CB
Tested by
t4330
IisSTAC:: PROC
    IiRequire 686, SPEC
    IiEmitOpcode 0x0F,0x01,0xCB
    IiDispatchFormat none 
.none:RET
 ENDP IisSTAC::
↑ RDPKRU
ReaD Protection Keys Register
Operands
-
Opcode
0x0F01EE
CPU
686
Tested by
t4330
IisRDPKRU:: PROC
    IiRequire X64
    IiAbortIfNot64
    IiEmitOpcode 0x0F,0x01,0xEE
    IiDispatchFormat none 
.none:RET
 ENDP IisRDPKRU::
↑ WRPKRU
WRite Protection Keys Register
Operands
-
Opcode
0x0F01EF
CPU
686
Tested by
t4330
IisWRPKRU:: PROC
    IiRequire X64
    IiAbortIfNot64
    IiEmitOpcode 0x0F,0x01,0xEF
    IiDispatchFormat none 
.none:RET
 ENDP IisWRPKRU::
↑ IBTS
IBTS base,bitoffset,len,src
Category
Deprecated
Operands
r/m16,AX,CL,r16 || r/m32,EAX,CL,r32
Opcode
0x0FA7 /r
Flags
none
CPU
386 CPU stepping attribute of “A0” through “B0” only
Documented
[ObsoleteBTS]
Tested by
t3220
IisIBTS:: PROC
    IiRequire 386,UNDOC
    IiEmitOpcode 0x0F,0xA7
    IiDataSize SpecifyMem=OFF
    IiOpEn MR
    IiModRM /r
    IiAbortIfNot Operand3,CL
    IiDispatchFormat r16.r16.r8.r16, mem.r16.r8.r16, \
                     r32.r32.r8.r32, mem.r32.r8.r32 
.r16.r16.r8.r16:
.mem.r16.r8.r16:                                                  
    IiAbortIfNot Operand2,AX
    IiSwap Operand2, Operand4
    RET
.r32.r32.r8.r32:
.mem.r32.r8.r32:
    IiAbortIfNot Operand2,EAX
    IiSwap Operand2, Operand4
    RET
 ENDP IisIBTS::
↑ XBTS
XBTS dst,base,bitoffset,len
Category
Deprecated
Operands
r16,r/m16,AX,CL || r32,r/m32,EAX,CL
Opcode
0x0FA6 /r
Flags
none
CPU
386 CPU stepping attribute of “A0” through “B0” only
Documented
[ObsoleteBTS]
Tested by
t3220
IisXBTS:: PROC
    IiRequire 386,UNDOC
    IiEmitOpcode 0x0F,0xA6
    IiDataSize SpecifyMem=OFF
    IiOpEn RM
    IiModRM /r
    IiAbortIfNot Operand4,CL
    IiDispatchFormat r16.r16.r16.r8, r16.mem.r16.r8, \
                     r32.r32.r32.r8, r32.mem.r32.r8 
.r16.r16.r16.r8:
.r16.mem.r16.r8:
    IiAbortIfNot Operand3,AX
    RET
.r32.r32.r32.r8:
.r32.mem.r32.r8:    
    IiAbortIfNot Operand3,EAX
    RET
 ENDP IisXBTS::
↑ CLZERO
Zero 64byte cacheline
Operands
implicit [RAX]
Opcode
0x0FAEF8
CPU
686
Tested by
t3436
IisCLZERO:: PROC
    IiRequire 686,AMD
    IiEmitOpcode 0x0F,0x01,0xFC
    IiDispatchFormat none
.none:RET
 ENDP IisCLZERO::
↑ CLFLUSHOPT
Optimized cacheline flush
Operands
mem
Opcode
0x660FAE /7
CPU
686
Tested by
t3436
IisCLFLUSHOPT:: PROC
    IiRequire 686
    IiEmitPrefix OTOGGLE
    IiEmitOpcode 0x0F,0xAE
    IiOpEn M
    IiModRM /7
    IiDispatchFormat mem
.mem:RET
 ENDP IisCLFLUSHOPT::
↑ RDSEED
Generate random number
Description
RDSEED
Operands
reg
Opcode
0x0FC7 /7
Tested by
t3418
IisRDSEED:: PROC
    IiRequire 686, SPEC
    IiEmitOpcode 0x0F,0xC7
    IiOpEn M
    IiModRM /7
    IiDataSize
    IiDispatchFormat r16,r32,r64
.r64:
.r32:
.r16:
     RET
 ENDP IisRDSEED::
↑ CL1INVMB
Invalidate L1 cache data with MPBT tag
Operands
-
Opcode
0x0F0A
CPU
48-core SCC
Documented
intel.com
Tested by
t3421
IisCL1INVMB:: PROC
    IiRequire 686,SPEC
    IiEmitOpcode 0x0F,0x0A
    IiDispatchFormat none
.none:RET
 ENDP IisCL1INVMB::
↑ ALTINST
Switch to alternate (not x86) instruction set
Category
VIA
Operands
-
Opcode
0x0F3F
CPU
VIA
Documented
ANTAUR datasheet
Tested by
t3421
IisALTINST:: PROC
    IiRequire VIA,SPEC
    IiEmitOpcode 0x0F,0x3F
    IiDispatchFormat none
.none:RET
  ENDP IisALTINST::
↑ HINT_NOP
Hintable No Operation
Category
gen,control
Operands
Ordinal, mem
Opcode
0x0F18 /0 || .. || 0x0F1F /7
CPU
PP-P2
Documented
M25
Tested by
t4142
IisHINT_NOP:: PROC
    IiRequire 686,UNDOC
    IiDataSize Operand2
    MOV EAX,[EDI+II.Operand1+EXP.Low] ; Ordinal 0..63.
    MOV ECX,EAX
    CMP ECX,63
    IiAbort cc=A,'6531' ; 1st operand of HINT_NOP may not exceed 63 (00q..77q).
    SHR EAX,3
    SHL ECX,28
    ADD AL,0x18
    AND ECX,iiPpgModDigit
    SetSt ECX,iiPpgModRMd
    IiEmitOpcode 0x0F,EAX
    IiOpEn VM ; Operand1 is actually ignored in ModRM.
    IiModRM ECX
    IiDispatchFormat imm.r16,imm.r32,imm.r64,imm.m16,imm.m32,imm.m64
.imm.r16:
.imm.r32:
.imm.r64:
.imm.m16:
.imm.m32:
.imm.m64:
    RET
 ENDP IisHINT_NOP::
↑ HINT_NOPW
Hintable No Operation, WORD
Category
gen,control
Operands
Ordinal, mem
Opcode
0x0F18 /0 || .. || 0x0F1F /7
CPU
PP-P2
Documented
M25
Tested by
t4142
IisHINT_NOPW:: PROC
    IiSuffixed HINT_NOP,W, Category=s
 ENDP IisHINT_NOPW::
↑ HINT_NOPD
Hintable No Operation, DWORD
Category
gen,control
Operands
Ordinal, mem
Opcode
0x0F18 /0 || .. || 0x0F1F /7
CPU
PP-P2
Documented
M25
Tested by
t4142
IisHINT_NOPD:: PROC
    IiSuffixed HINT_NOP,D, Category=s
 ENDP IisHINT_NOPD::
↑ HINT_NOPQ
Hintable No Operation, QWORD
Category
gen,control
Operands
Ordinal, mem
Opcode
0x0F18 /0 || .. || 0x0F1F /7
CPU
PP-P2
Documented
M25
Tested by
t4142
IisHINT_NOPQ:: PROC
    IiSuffixed HINT_NOP,Q, Category=s
 ENDP IisHINT_NOPQ::
↑ NOP
No Operation
Description
NOP
Category
gen,control
Operands
| Ev | Ev
Opcode
0x90 | 0x0F0D | 0x0F1F /0
Documented
D3
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP:: PROC
      IiAllowModifier DATA
      IiDispatchFormat none, r16, r32, r64, mem
.none:IiEmitOpcode 0x90
      RET
.r16:
.r32:
.r64:
.mem:
    IiRequire 686
    IiDataSize Operand1,UseSegment=ON,SpecifyMem=OFF
    IiEmitOpcode 0x0F,0x1F
    IiOpEn M
    IiModRM /0
    RET
 ENDP IisNOP::
↑ NOP1
No operation 1 byte
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP1:: PROC
      IiEmitOpcode 0x90 ; XCHG rAX,rAX
      IiDispatchFormat none
.none:RET
 ENDP IisNOP1::
↑ NOP2
No operation 2 bytes
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP2:: PROC
      IiDispatchFormat none
.none:IiEncoding DATA=WORD
      IiDispatchWidth BITS16=.16:
.386: IiEmitOpcode 0x66,0x90
      RET
.16:  IiDispatchCPU CPU_386=.386:
      IiEmitOpcode 0x87,0xC9
      RET
    RET
 ENDP IisNOP2::
↑ NOP3
No operation 3 bytes
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP3:: PROC
      IiDispatchFormat none 
.none:IiDispatchWidth BITS64=.64:, BITS32=.32:
      IiEncoding DATA=WORD
      IiDispatchCPU  CPU_686=.686:
      IiEmitOpcode 0x90,0x87,0xC9
      RET
.686: IiEmitOpcode 0x66,0x67,0x90
      RET
.64:  IiEmitOpcode 0x0F,0x1F,0x00
      IiEncoding DATA=DWORD,ADDR=ABS,
      RET
.32:  IiDispatchCPU CPU_686=.64:
      IiEmitOpcode 0x8D,0x40,0x00
      IiEncoding DATA=DWORD,ADDR=ABS,
      RET
 ENDP IisNOP3::
↑ NOP4
No operation 4 bytes
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP4:: PROC
      IiDispatchFormat none 
.none:IiDispatchWidth BITS64=.64:, BITS32=.32:
      IiEncoding DATA=WORD
      IiDispatchCPU  CPU_686=.686:
      IiEmitOpcode 0x87,0xC9,0x87,0xD2
      RET
.686: IiEmitOpcode 0x67,0x0F,0x1F,0x00
      IiEncoding DATA=WORD,ADDR=ABS
      RET
.64:  IiEmitOpcode 0x0F,0x1F,0x40
      IiEncoding DATA=DWORD,ADDR=ABS,DISP=BYTE
      RET
.32:  IiDispatchCPU CPU_686=.64:
      IiEmitOpcode 0x8D,0x44,0x20
      IiEncoding DATA=DWORD,SCALE=VERBATIM,ADDR=ABS,DISP=BYTE
      RET
 ENDP IisNOP4::
↑ NOP5
No operation 5 bytes
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP5:: PROC
      IiDispatchFormat none 
.none:IiDispatchWidth BITS64=.64:, BITS32=.32:
      IiEncoding DATA=WORD
      IiDispatchCPU  CPU_686=.686:
      IiEmitOpcode 0x90,0x87,0xC9,0x87,0xD2
      RET
.686: IiEmitOpcode 0x67,0x0F,0x1F,0x40
      IiEncoding DATA=WORD,ADDR=ABS,DISP=BYTE
      RET
.64:  IiEmitOpcode 0x0F,0x1F,0x44,0x20
      IiEncoding DATA=DWORD,SCALE=VERBATIM,ADDR=ABS,DISP=BYTE
      RET
.32:  IiDispatchCPU CPU_686=.64:
      IiEmitOpcode 0x3E,0x8D,0x44,0x20
      IiEncoding DATA=DWORD,SCALE=VERBATIM,ADDR=ABS,DISP=BYTE
      RET
 ENDP IisNOP5::
↑ NOP6
No operation 6 bytes
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP6:: PROC
      IiDispatchFormat none 
.none:IiDispatchWidth BITS64=.64:, BITS32=.32:
      IiEncoding DATA=WORD
      IiDispatchCPU  CPU_686=.686:
      IiEmitOpcode 0x87,0xC9,0x87,0xD2,0x87,0xDB
      RET
.686: IiEmitOpcode 0x67,0x0F,0x1F,0x44,0x20
      IiEncoding DATA=WORD,SCALE=VERBATIM,ADDR=ABS,DISP=BYTE
      RET
.64:  IiEmitOpcode 0x66,0x0F,0x1F,0x44,0x20
      IiEncoding DATA=WORD,SCALE=VERBATIM,ADDR=ABS,DISP=BYTE
      RET
.32:  IiDispatchCPU CPU_686=.64:
      IiEmitOpcode 0x8D,0x80
      IiEncoding DATA=DWORD,ADDR=ABS,DISP=DWORD
      RET
 ENDP IisNOP6::
↑ NOP7
No operation 7 bytes
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP7:: PROC
      IiDispatchFormat none 
.none:IiDispatchWidth BITS64=.64:, BITS32=.32:
      IiDispatchCPU  CPU_686=.686:
      IiEmitOpcode 0x90,0x87,0xC9,0x87,0xD2,0x87,0xDB
      IiEncoding DATA=WORD
      RET
.686: IiEmitOpcode 0x66,0x67,0x0F,0x1F,0x44,0x20
      IiEncoding DATA=DWORD,SCALE=VERBATIM,ADDR=ABS,DISP=BYTE
      RET
.64:  IiEmitOpcode 0x0F,0x1F,0x80
      IiEncoding DATA=DWORD,ADDR=ABS,DISP=DWORD
      RET
.32:  IiDispatchCPU CPU_686=.64:
      IiEmitOpcode 0x8D,0x84,0x20
      IiEncoding DATA=DWORD,SCALE=VERBATIM,ADDR=ABS,DISP=DWORD
      RET
 ENDP IisNOP7::
↑ NOP8
No operation 8 bytes
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP8:: PROC
      IiDispatchFormat none 
.none:IiDispatchWidth BITS64=.64:, BITS32=.32:
      IiDispatchCPU  CPU_686=.686:
      IiEmitOpcode 0x87,0xC9,0x87,0xD2,0x87,0xDB,0x87,0xE4
      IiEncoding DATA=WORD
      RET
.686: IiEmitOpcode 0x67,0x0F,0x1F,0x80
      IiEncoding DATA=DWORD,ADDR=ABS,DISP=DWORD
      RET
.64:  IiEmitOpcode 0x0F,0x1F,0x84,0x20
      IiEncoding DATA=DWORD,SCALE=VERBATIM,ADDR=ABS,DISP=DWORD
      RET
.32:  IiDispatchCPU CPU_686=.64:
      IiEmitOpcode 0x3E,0x8D,0x84,0x20
      IiEncoding DATA=DWORD,SCALE=VERBATIM,ADDR=ABS,DISP=DWORD
      RET 
 ENDP IisNOP8::
↑ NOP9
No operation 9 bytes
See also
No-operation encoding.
Tested by
t3131 t3132 t3133
IisNOP9:: PROC
      IiDispatchFormat none
.none:IiDispatchWidth BITS64=.64:, BITS32=.32:
      IiDispatchCPU  CPU_686=.686:
      IiEmitOpcode 0x90,0x87,0xC9,0x87,0xD2,0x87,0xDB,0x87,0xE4
      IiEncoding DATA=WORD
      RET
.686: IiEmitOpcode 0x67,0x0F,0x1F,0x84,0x20
      IiEncoding DATA=DWORD,SCALE=VERBATIM,ADDR=ABS,DISP=DWORD
      RET
.64:  IiEmitOpcode 0x66,0x0F,0x1F,0x84,0x20
      IiEncoding DATA=WORD,SCALE=VERBATIM,ADDR=ABS,DISP=DWORD
      RET
.32:  IiDispatchCPU CPU_686=.64:
      IiEmitOpcode 0x66,0x3E,0x8D,0x84,0x20
      IiEncoding DATA=WORD,SCALE=VERBATIM,ADDR=ABS,DISP=DWORD
      RET
 ENDP IisNOP9::
  ENDPROGRAM iis

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