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IA-32 Assembly Language Reference Manual

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IA-32 Assembly Language Reference Manual IA-32 Assembly Language Reference Manual Sun Microsystems, Inc. 901 San Antonio Road Palo Alto, CA 94303-4900 U.S.A. Part Number 806-3773–10 February 2000 Copyright 2000 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California 94303-4900 U.S.A. All rights reserved. This product or document is protected by copyright and distributed under licenses restricting its use, copying, distribution, and decompilation. No part of this product or document may be reproduced in any form by any means without prior written authorization of Sun and its licensors, if any. Third-party software, including font technology, is copyrighted and licensed from Sun suppliers. Parts of the product may be derived from Berkeley BSD systems, licensed from the University of California. UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open Company, Ltd. Sun, Sun Microsystems, the Sun logo, docs.sun.com, AnswerBook, AnswerBook2, and Solaris are trademarks, registered trademarks, or service marks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the U.S. and other countries. Products bearing SPARC trademarks are based upon an architecture developed by Sun Microsystems, Inc. The OPEN LOOK and SunTM Graphical User Interface was developed by Sun Microsystems, Inc. for its users and licensees. Sun acknowledges the pioneering efforts of Xerox in researching and developing the concept of visual or graphical user interfaces for the computer industry. Sun holds a non-exclusive license from Xerox to the Xerox Graphical User Interface, which license also covers Sun’s licensees who implement OPEN LOOK GUIs and otherwise comply with Sun’s written license agreements. RESTRICTED RIGHTS: Use, duplication, or disclosure by the U.S. Government is subject to restrictions of FAR 52.227–14(g)(2)(6/87) and FAR 52.227–19(6/87), or DFAR 252.227–7015(b)(6/95) and DFAR 227.7202–3(a). DOCUMENTATION IS PROVIDED “AS IS” AND ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID. Copyright 2000 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, Californie 94303-4900 Etats-Unis. Tous droits réservés. Ce produit ou document est protégé par un copyright et distribué avec des licences qui en restreignent l’utilisation, la copie, la distribution, et la décompilation. Aucune partie de ce produit ou document ne peut être reproduite sous aucune forme, par quelque moyen que ce soit, sans l’autorisation préalable et écrite de Sun et de ses bailleurs de licence, s’il y en a. Le logiciel détenu par des tiers, et qui comprend la technologie relative aux polices de caractères, est protégé par un copyright et licencié par des fournisseurs de Sun. Des parties de ce produit pourront être dérivées du système Berkeley BSD licenciés par l’Université de Californie. UNIX est une marque déposée aux Etats-Unis et dans d’autres pays et licenciée exclusivement par X/Open Company, Ltd. Sun, Sun Microsystems, le logo Sun, docs.sun.com, AnswerBook, AnswerBook2, et Solaris sont des marques de fabrique ou des marques déposées, ou marques de service, de Sun Microsystems, Inc. aux Etats-Unis et dans d’autres pays. Toutes les marques SPARC sont utilisées sous licence et sont des marques de fabrique ou des marques déposées de SPARC International, Inc. aux Etats-Unis et dans d’autres pays. Les produits portant les marques SPARC sont basés sur une architecture développée par Sun Microsystems, Inc. L’interface d’utilisation graphique OPEN LOOK et SunTM a été développée par Sun Microsystems, Inc. pour ses utilisateurs et licenciés. Sun reconnaît les efforts de pionniers de Xerox pour la recherche et le développement du concept des interfaces d’utilisation visuelle ou graphique pour l’industrie de l’informatique. Sun détient une licence non exclusive de Xerox sur l’interface d’utilisation graphique Xerox, cette licence couvrant également les licenciés de Sun qui mettent en place l’interface d’utilisation graphique OPEN LOOK et qui en outre se conforment aux licences écrites de Sun. CETTE PUBLICATION EST FOURNIE “EN L’ETAT” ET AUCUNE GARANTIE, EXPRESSE OU IMPLICITE, N’EST ACCORDEE, Y COMPRIS DES GARANTIES CONCERNANT LA VALEUR MARCHANDE, L’APTITUDE DE LA PUBLICATION A REPONDRE A UNE UTILISATION PARTICULIERE, OU LE FAIT QU’ELLE NE SOIT PAS CONTREFAISANTE DE PRODUIT DE TIERS. CE DENI DE GARANTIE NE S’APPLIQUERAIT PAS, DANS LA MESURE OU IL SERAIT TENU JURIDIQUEMENT NUL ET NON AVENU. Please Recycle Contents Preface 13 1. Assembler Input 17 Introduction 17 Source Files in Assembly Language Format 18 File Organization 18 Statements 19 Values and Symbol Types 19 Expressions 22 Expression Syntax 22 Expression Semantics (Absolute vs. Relocatable) 23 Machine Instruction Syntax 24 Instruction Description 27 Pseudo Operations 29 General Pseudo Operations 29 Symbol Definition Pseudo Operations 32 2. Instruction-Set Mapping 35 Introduction 36 Notational Conventions 36 References 40 3 Segment Register Instructions 40 Load Full Pointer (lds,les, lfs, lgs, and lss) 40 Pop Stack into Word (pop) 41 Push Word/Long onto Stack (push)41 I/O Instructions 42 Input from Port (in, ins) 42 Output from Port (out, outs) 43 Flag Instructions 44 Load Flags into AH Register (lahf) 44 Store AH into Flags (sahf) 45 Pop Stack into Flag (popf)45 Push Flag Register Onto Stack (pushf)46 Complement Carry Flag (cmc) 46 Clear Carry Flag (clc) 47 Set Carry Flag (stc) 47 Clear Interrupt Flag (cli) 47 Set Interrupt Flag (sti) 48 Clear Direction Flag (cld) 48 Set Direction Flag (std) 49 Arithmetic Logical Instructions 49 Integer Addition (add) 49 Integer Add With Carry (adc) 50 Integer Subtraction (sub) 51 Integer Subtraction With Borrow (sbb) 52 Compare Two Operands (cmp) 52 Increment by 1 (inc) 53 Decrease by 1 (dec) 54 Logical Comparison or Test (test) 54 4 IA-32 Assembly Language Reference Manual ♦ February 2000 Shift (sal, shl, sar, shr) 55 Double Precision Shift Left (shld) 56 Double Precision Shift Right (shrd) 57 One’s Complement Negation (not) 58 Two’s Complement Negation (neg) 58 Check Array Index Against Bounds (bound) 59 Logical And (and) 60 Logical Inclusive OR (or) 61 Logical Exclusive OR (xor) 62 Multiply and Divide Instructions 63 Signed Multiply (imul) 63 Unsigned Multiplication of AL, AX or EAX(mul) 64 Unsigned Divide (div) 65 Signed Divide (idiv) 66 Conversion Instructions 67 Convert Byte to Word (cbtw) 67 Convert Word to Long (cwtl) 68 Convert Signed Word to Signed Double Word (cwtd) 68 Convert Signed Long to Signed Double Long (cltd) 68 Decimal Arithmetic Instructions 69 Decimal Adjust AL after Addition (daa) 69 Decimal Adjust AL after Subtraction (das) 69 ASCII Adjust after Addition (aaa) 70 ASCII Adjust after Subtraction (aas) 71 ASCII Adjust AX after Multiply (aam) 72 ASCII Adjust AX before Division (aad) 72 Coprocessor Instructions 73 Wait (wait, fwait) 73 Contents 5 String Instructions 73 Move Data from String to String (movs) 74 Compare String Operands (cmps) 74 Store String Data (stos) 75 The Load String Operand (lods) 76 Compare String Data (scas) 77 Look-Up Translation Table (xlat) 78 Repeat String Operation (rep, repnz, repz) 78 Procedure Call and Return Instructions 79 Far Call — Procedure Call (lcall) 79 Near Call — Procedure Call (call) 80 Return from Procedure (ret) 81 Long Return (lret) 81 Enter/Make Stack Frame for Procedure Parameters (enter) 82 High Level Procedure Exit (leave) 83 Jump Instructions 84 Jump if ECX is Zero (jcxz) 84 Loop Control with CX Counter (loop, loopnz, loopz) 84 Jump (jmp, ljmp) 85 Interrupt Instructions 86 Call to Interrupt Procedure (int, into) 86 Interrupt Return (iret) 87 Protection Model Instructions 88 Store Local Descriptor Table Register (sldt) 88 Store Task Register (str) 89 Load Local Descriptor Table Register (lldt) 89 Load Task Register (ltr) 90 Verify a Segment for Reading or Writing (verr, verw) 90 6 IA-32 Assembly Language Reference Manual ♦ February 2000 Store Global/Interrupt Descriptor Table Register (sgdt, sidt) 91 Load Global/Interrupt Descriptor Table (lgdt, lidt) 92 Store Machine Status Word (smsw) 92 Load Machine Status Word (lmsw) 93 Load Access Rights (lar) 93 Load Segment Limit (lsl) 94 Clear Task-Switched (clts) 95 Adjust RPL Field of Selector (arpl) 96 Bit Instructions 96 Bit Scan Forward (bsf) 96 Bit Scan Reverse (bsr) 97 Bit Test (bt) 97 Bit Test And Complement (btc) 98 Bit Test And Reset (btr) 98 Bit Test And Set (bts) 99 Exchange Instructions 99 Compare and Exchange (cmpxchg)[486] 99 Floating-Point Transcendental Instructions 100 Floating-Point Sine (fsin) 100 Floating-Point Cosine (fcos) 100 Floating-Point Sine and Cosine (fsincos) 100 Floating-Point Constant Instructions 100 Floating-Point Load One (fld) 100 Processor Control Floating-Point Instructions 101 Floating-Point Load Control Word (fldcw) 101 Floating-Point Load Environment (fldenv) 101 Miscellaneous Floating-Point Instructions 101 Floating-Point Different Reminder (fprem) 101 Contents 7 Floating-Point Comparison Instructions 102 Floating-Point Unsigned Compare (fucom) 102 Floating-Point Unsigned Compare And Pop (fucomp) 102 Floating-Point Unsigned Compare And Pop Two (fucompp) 103 Load and Move Instructions 103 Load Effective Address (lea) 103 Move (mov) 104 Move Segment Registers (movw) 104 Move Control Registers (mov) 105 Move
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