IntelÂ® Extended Memory 64 Technology Software Developer's Guide

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64-Bit Mode Exceptions#GP(0)If the instruction pointer in the 64-bit interrupt gate or 64-bit trap gate is non-canonical.#GP(selector)If the segment selector in the 64-bit interrupt or trap gate is null.If the interrupt vector number is outside the IDT limits.If the interrupt vector number points to a gate which is in non-canonical space.If the interrupt vector number points to a descriptor which is not a 64-bit interrupt gate or64-bit trap gate.If the descriptor pointed to by the gate selector is outside the descriptor table limit.If the descriptor pointed to by the gate selector is in non-canonical space.If the descriptor pointed to by the gate selector is not a code segment.If the descriptor pointed to by the gate selector doesn’t have the L-bit set, or has both the L-bit and D-bit set.If the descriptor pointed to by the gate selector has DPL > CPL.#SS(0)If a push of the old EFLAGS, CS selector, EIP, or error code is in non-canonical space withno stack switch.#SS(selector)If a push of the old SS selector, ESP, EFLAGS, CS selector, EIP, or error code is in noncanonicalspace on a stack switch (either CPL change or no-CPL with IST).#NP(selector)If the 64-bit interrupt-gate, 64-bit trap-gate, or code segment is not present.#TS(selector)If an attempt to load RSP from the TSS causes an access to non-canonical space.If the RSP from the TSS is outside descriptor table limits.#PF(fault-code) If a page fault occurs.2-264 Vol. 1
INVD—Invalidate Internal CachesOpcode Instruction 64-Bit Mode Compat/Leg DescriptionMode0F 08 INVD Valid Valid Flush internal caches; initiate flushing of externalcaches.Flags AffectedNone.IA-32e Mode OperationSame as legacy mode.Protected Mode Exceptions#GP(0) If the current privilege level is not 0.Real-Address Mode ExceptionsNone.Virtual-8086 Mode Exceptions#GP(0)The INVD instruction cannot be executed in virtual-8086 mode.Compatibility Mode ExceptionsSame as for protected mode exceptions.64-Bit Mode ExceptionsSame as for protected mode exceptions.Vol. 1 2-265
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Intel ® Extended Memory 64 Technol
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1.6.9.1. Call Gates. . . . . . . .
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FSUB/FSUBP/FISUB—Subtract . . . .
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PADDSB/PADDSW—Add Packed Signed I
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-xii Vol. 1
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ModeIA-32emodeOperatingSystemRequir
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1.3. REGISTER-SET CHANGESThis secti
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Table 1-4 IA32_EFER Bit Description
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IA-32e sub-modeTable 1-8 64-Bit Ext
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REX PREFIX0100WR0BOpcodemod!=11ModR
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1.4.2.4. Direct Memory-Offset MOVsI
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The 64-bit default operation-size e
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1.6.2. Register Settings and IA-32e
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1.6.3.4. Compatibility ModeCompatib
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• When in compatibility mode, FS
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Prior to activating IA-32e mode, PA
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Table 1-22 through Table 1-24 shows
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Table 1-26 Reserved Bit CheckingMod
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• Bits 29:21 index into the 512-e
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Only 64-bit mode call gates can be
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Although the hardware task-switchin
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Table 1-39 IA-32e Mode Interrupt an
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If the IST index for an interrupt g
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1-38 Vol. 1
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• ib, iw, id, io — A 1-byte (ib
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• m16:16, m16:32 & m16:64 —A me
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which is either 16, 32 or 64-bits.
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2.1.3.1. IA-32e Mode OperationThe s
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2.1.10. SIMD Floating-Point Excepti
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AAD—ASCII Adjust AX Before Divisi
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AAS—ASCII Adjust AL After Subtrac
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Real-Address Mode Exceptions#GPIf a
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64-Bit Mode Exceptions#SS(0)If a me
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#PF(fault-code)#NM#UDFor a page fau
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BOUND—Check Array Index Against B
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BSF—Bit Scan ForwardOpcode Instru
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BSWAP—Byte SwapOpcode Instruction
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#AC(0)If alignment checking is enab
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#GP(0)#PF(fault-code)#AC(0)If the m
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#PF(fault-code)#AC(0)If a page faul
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Compatibility Mode ExceptionsSame a
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CDQ—Convert Double to QuadSee ent
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CLD—Clear Direction FlagOpcode In
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CLI—Clear Interrupt FlagOpcode In
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CMC—Complement Carry FlagOpcode I
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Opcode Instruction 64-Bit Mode Comp
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CMP—Compare Two OperandsOpcode In
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CMPPD—Compare Packed Double-Preci
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CMPPS—Compare Packed Single-Preci
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CMPS/CMPSB/CMPSW/CMPSD/CMPSQ—Comp
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CMPSD—Compare Scalar Double-Preci
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CMPSS—Compare Scalar Single-Preci
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CMPXCHG—Compare and ExchangeOpcod
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CMPXCHG8B/CMPXCHG16B—Compare and
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COMISD—Compare Scalar Ordered Dou
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COMISS—Compare Scalar Ordered Sin
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CPUID—CPU IdentificationOpcode In
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Initial EAXValue80000005H80000006H8
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Table 2-8 CPUID Feature Information
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• The most significant bit (bit 3
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Table 2-10 Brand String Offsets (Co
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CVTDQ2PD—Convert Packed Doublewor
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CVTDQ2PS—Convert Packed Doublewor
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CVTPD2DQ—Convert Packed Double-Pr
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CVTPD2PI—Convert Packed Double-Pr
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CVTPD2PS—Covert Packed Double-Pre
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CVTPI2PD—Convert Packed Doublewor
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CVTPI2PS—Convert Packed Doublewor
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CVTPS2DQ—Convert Packed Single-Pr
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CVTPS2PD—Covert Packed Single-Pre
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CVTPS2PI—Convert Packed Single-Pr
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CVTSD2SI—Convert Scalar Double-Pr
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CVTSD2SS—Convert Scalar Double-Pr
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CVTSI2SD—Convert Doubleword Integ
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CVTSI2SS—Convert Doubleword Integ
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CVTSS2SD—Convert Scalar Single-Pr
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CVTSS2SI—Convert Scalar Single-Pr
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CVTTPD2PI—Convert with Truncation
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CVTTPD2DQ—Convert with Truncation
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CVTTPS2DQ—Convert with Truncation
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CVTTPS2PI—Convert with Truncation
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CVTTSD2SI—Convert with Truncation
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CVTTSS2SI—Convert with Truncation
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CWD/CDQ/CQQ—Convert Word to Doubl
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DAS—Decimal Adjust AL after Subtr
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Virtual-8086 Mode Exceptions#DE If
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ENTER—Make Stack Frame for Proced
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FABS—Absolute ValueOpcode Instruc
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Virtual-8086 Mode Exceptions#GP(0)I
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FCLEX/FNCLEX—Clear ExceptionsOpco
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FCOM/FCOMP/FCOMPP—Compare Floatin
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FCOMI/FCOMIP/ FUCOMI/FUCOMIP—Comp
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FDECSTP—Decrement Stack-Top Point
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FICOM/FICOMP—Compare IntegerOpcod
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FILD—Load IntegerOpcode Instructi
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FINCSTP—Increment Stack-Top Point
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FIST/FISTP—Store IntegerOpcode In
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FISTTP—Store Integer with Truncat
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FLD—Load Floating Point ValueOpco
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FLD1/FLDL2T/FLDL2E/FLDPI/FLDLG2/FLD
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Compatibility Mode ExceptionsSame a
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FPATAN—Partial ArctangentOpcode I
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FPREM1—Partial RemainderOpcode In
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FRNDINT—Round to IntegerOpcode In
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Virtual-8086 Mode Exceptions#GP(0)I
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FSIN—SineOpcode Instruction 64-Bi
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Page 267 and 268: Virtual-8086 Mode Exceptions#GP(0)I
Page 273 and 274: Protected Mode Exceptions#GP(0)If a
Page 275 and 276: Protected Mode Exceptions#GP(0)If a
Page 277 and 278: FUCOM/FUCOMP/FUCOMPP—Unordered Co
Page 279 and 280: FXAM—ExamineOpcode Instruction 64
Page 281 and 282: FXRSTOR—Restore x87 FPU, MMX, SSE
Page 283 and 284: FXSAVE—Save x87 FPU, MMX, SSE, an
Page 285 and 286: XMM0 throughXMM7XMM registers (128
Page 287 and 288: Table 2-14 Layout of the 64-bit FXS
Page 289 and 290: Protected Mode Exceptions#GP(0)For
Page 291 and 292: FXTRACT—Extract Exponent and Sign
Page 293 and 294: FYL2XP1—Compute y ∗ log 2 (x +1
Page 295 and 296: 64-Bit Mode Exceptions#SS(0)If a me
Page 299 and 300: HSUBPD—Horizontal Subtract Packed
Page 301 and 302: HSUBPS—Horizontal Subtract Packed
Page 303 and 304: IDIV—Signed DivideOpcode Instruct
Page 305 and 306: IMUL—Signed MultiplyOpcode Instru
Page 307 and 308: IN—Input from PortOpcode Instruct
Page 311 and 312: Compatibility Mode ExceptionsSame a
Page 313: Real-Address Mode Exceptions#GPIf a
Page 317 and 318: IRET/IRETD—Interrupt ReturnOpcode
Page 319 and 320: Jcc—Jump if Condition Is MetOpcod
Page 321 and 322: Opcode Instruction 64-Bit Mode Comp
Page 323 and 324: #SS(0)#NP (selector)#PF(fault-code)
Page 325 and 326: LAHF—Load Status Flags into AH Re
Page 327 and 328: LDDQU—Load Unaligned Double Quadw
Page 329 and 330: LDMXCSR—Load MXCSR RegisterOpcode
Page 331 and 332: LDS/LES/LFS/LGS/LSS—Load Far Poin
Page 333 and 334: LEA—Load Effective AddressOpcode
Page 335 and 336: LES—Load Full PointerSee entry fo
Page 337 and 338: LFS—Load Full PointerSee entry fo
Page 339 and 340: LGS—Load Full PointerSee entry fo
Page 343 and 344: LMSW—Load Machine Status WordOpco
Page 345 and 346: LODS/LODSB/LODSW/LODSD/LODSQ—Load
Page 347 and 348: LOOP/LOOPcc—Loop According to ECX
Page 349 and 350: LSS—Load Full PointerSee entry fo
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IntelÂ® Extended Memory 64 Technology Software Developer's Guide

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