\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{rwwagner90} \pdfinfo{ /Title (x86-assembly-c-linking-loading-etc.pdf) /Creator (Cheatography) /Author (rwwagner90) /Subject (x86 Assembly, C Linking, Loading etc Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{FF960D} \definecolor{LightBackground}{HTML}{FFF8EF} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{x86 Assembly, C Linking, Loading etc Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{rwwagner90} via \textcolor{DarkBackground}{\uline{cheatography.com/2239/cs/635/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}rwwagner90 \\ \uline{cheatography.com/rwwagner90} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Published 23rd October, 2012.\\ Updated 12th May, 2016.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{3} \begin{tabularx}{5.377cm}{x{1.84149 cm} x{3.13551 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{x86 Assembly Instructions}} \tn % Row 0 \SetRowColor{LightBackground} ADD \textless{}dest\textgreater{}, \textless{}source\textgreater{} & Adds \textless{}source\textgreater{} to \textless{}dest\textgreater{}. \textless{}dest\textgreater{} may be a register or memory. \textless{}source\textgreater{} may Be a register, memory or immediate value. \tn % Row Count 5 (+ 5) % Row 1 \SetRowColor{white} CALL \textless{}loc\textgreater{} & Call a function and return to the next instruction when finished. \textless{}proc\textgreater{} may be a relative offset from the current location, a register or memory addr. \tn % Row Count 12 (+ 7) % Row 2 \SetRowColor{LightBackground} CMP \textless{}dest\textgreater{}, \textless{}source\textgreater{} & Compare \textless{}source\textgreater{} with \textless{}dest\textgreater{}. Similar to SUB instruction but does not Modify the \textless{}dest\textgreater{} operand with the result of the subtraction. \tn % Row Count 18 (+ 6) % Row 3 \SetRowColor{white} DEC \textless{}dest\textgreater{} & Subtract 1 from \textless{}dest\textgreater{}. \textless{}dest\textgreater{} may be a register or memory. \tn % Row Count 21 (+ 3) % Row 4 \SetRowColor{LightBackground} DIV \textless{}divisor\textgreater{} & Divide the EDX:EAX registers (64-bit combo) by \textless{}divisor\textgreater{}. \textless{}divisor\textgreater{} may be a register or memory. \tn % Row Count 25 (+ 4) % Row 5 \SetRowColor{white} INC \textless{}dest\textgreater{} & Add 1 to \textless{}dest\textgreater{}. \textless{}dest\textgreater{} may be a register or memory. \tn % Row Count 28 (+ 3) % Row 6 \SetRowColor{LightBackground} JE \textless{}loc\textgreater{} & Jump if Equal (ZF=1) to \textless{}loc\textgreater{}. \tn % Row Count 30 (+ 2) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{x{1.84149 cm} x{3.13551 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{x86 Assembly Instructions (cont)}} \tn % Row 7 \SetRowColor{LightBackground} JG \textless{}loc\textgreater{} & Jump if Greater (ZF=0 and SF=OF) to \textless{}loc\textgreater{}. \tn % Row Count 2 (+ 2) % Row 8 \SetRowColor{white} JGE \textless{}loc\textgreater{} & Jump if Greater or Equal (SF=OF) to \textless{}loc\textgreater{}. \tn % Row Count 4 (+ 2) % Row 9 \SetRowColor{LightBackground} JLE \textless{}loc\textgreater{} & Jump is Less or Equal (SF\textless{}\textgreater{}OF) to \textless{}loc\textgreater{}. \tn % Row Count 6 (+ 2) % Row 10 \SetRowColor{white} JMP \textless{}loc\textgreater{} & Jump to \textless{}loc\textgreater{}. Unconditional. \tn % Row Count 8 (+ 2) % Row 11 \SetRowColor{LightBackground} JNE \textless{}loc\textgreater{} & Jump if Not Equal (ZF=0) to \textless{}loc\textgreater{}. \tn % Row Count 10 (+ 2) % Row 12 \SetRowColor{white} JNZ \textless{}loc\textgreater{} & Jump if Not Zero (ZF=0) to \textless{}loc\textgreater{}. \tn % Row Count 12 (+ 2) % Row 13 \SetRowColor{LightBackground} JZ \textless{}loc\textgreater{} & Jump if Zero (ZF=1) to \textless{}loc\textgreater{}. \tn % Row Count 14 (+ 2) % Row 14 \SetRowColor{white} LEA \textless{}dest\textgreater{}, \textless{}source\textgreater{} & Load Effective Address. Gets a pointer to the memory expression \textless{}source\textgreater{} and stores it in \textless{}dest\textgreater{}. \tn % Row Count 18 (+ 4) % Row 15 \SetRowColor{LightBackground} MOV \textless{}dest\textgreater{}, \textless{}source\textgreater{} & Move data from \textless{}source\textgreater{} to \textless{}dest\textgreater{}. \textless{}source\textgreater{} may be an immediate value, register, or a memory address. Dest may be either a memory address or a register. Both \textless{}source\textgreater{} and \textless{}dest\textgreater{} may not be memory addresses. \tn % Row Count 27 (+ 9) % Row 16 \SetRowColor{white} MOVZBL \textless{}dest\textgreater{}, \textless{}source\textgreater{} & Zero extend \textless{}source\textgreater{} to long and save in \textless{}dest\textgreater{}. \tn % Row Count 29 (+ 2) % Row 17 \SetRowColor{LightBackground} MUL \textless{}source\textgreater{} & Multiply the EDX:EAX registers (64-bit combo) by \textless{}source\textgreater{}. \textless{}source\textgreater{} may be a register or memory. \tn % Row Count 33 (+ 4) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{x{1.84149 cm} x{3.13551 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{x86 Assembly Instructions (cont)}} \tn % Row 18 \SetRowColor{LightBackground} POP \textless{}dest\textgreater{} & Take a 32-bit value from the stack and store it in \textless{}dest\textgreater{}. ESP is incremented by 4. \textless{}dest\textgreater{} may be a register, including segment registers, or memory. \tn % Row Count 7 (+ 7) % Row 19 \SetRowColor{white} PUSH \textless{}value\textgreater{} & Adds a 32-bit value to the top of the stack. Decrements ESP by 4. \textless{}value\textgreater{} may be a register, segment register, memory or immediate value. \tn % Row Count 13 (+ 6) % Row 20 \SetRowColor{LightBackground} ROL \textless{}dest\textgreater{}, \textless{}count\textgreater{} & Bitwise Rotate Left the value in \textless{}dest\textgreater{} by \textless{}count\textgreater{} bits. \textless{}dest\textgreater{} may be a register or memory address. \textless{}count\textgreater{} may be immediate or CL register. \tn % Row Count 19 (+ 6) % Row 21 \SetRowColor{white} ROR \textless{}dest\textgreater{}, \textless{}count\textgreater{} & Bitwise Rotate Right the value in \textless{}dest\textgreater{} by \textless{}count\textgreater{} bits. \textless{}dest\textgreater{} may be a register or memory address. \textless{}count\textgreater{} may be immediate or CL register. \tn % Row Count 25 (+ 6) % Row 22 \SetRowColor{LightBackground} SHL \textless{}dest\textgreater{}, \textless{}count\textgreater{} & Bitwise Shift Left the value in \textless{}dest\textgreater{} by \textless{}count\textgreater{} bits. Zero bits added to the least significant bits. \textless{}dest\textgreater{} may be reg. or mem. \textless{}count\textgreater{} is imm. or CL. \tn % Row Count 32 (+ 7) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{x{1.84149 cm} x{3.13551 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{x86 Assembly Instructions (cont)}} \tn % Row 23 \SetRowColor{LightBackground} SHR \textless{}dest\textgreater{}, \textless{}count\textgreater{} & Bitwise Shift Right the value in \textless{}dest\textgreater{} by \textless{}count\textgreater{} bits. Zero bits added to the least significant bits. \textless{}dest\textgreater{} may be reg. or mem. \textless{}count\textgreater{} is imm. or CL. \tn % Row Count 7 (+ 7) % Row 24 \SetRowColor{white} SUB \textless{}dest\textgreater{}, \textless{}source\textgreater{} & Subtract \textless{}source\textgreater{} from \textless{}dest\textgreater{}. \textless{}source\textgreater{} may be immediate, memory or a register. \textless{}dest\textgreater{} may be memory or a register. (source = dest)-\textgreater{}ZF=1, (source \textgreater{} dest)-\textgreater{}CF=1, (source \textless{} dest)-\textgreater{}CF=0 and ZF=0 \tn % Row Count 15 (+ 8) % Row 25 \SetRowColor{LightBackground} TEST \textless{}dest\textgreater{}, \textless{}source\textgreater{} & Performs a logical OR operation but does not modify the value in the \textless{}dest\textgreater{} operand. (source = dest)-\textgreater{}ZF=1, (source \textless{}\textgreater{} dest)-\textgreater{}ZF=0. \tn % Row Count 21 (+ 6) % Row 26 \SetRowColor{white} XCHG \textless{}dest, \textless{}source\textgreater{} & Exchange the contents of \textless{}source\textgreater{} and \textless{}dest\textgreater{}. Operands may be register or memory. Both operands may not be memory. \tn % Row Count 26 (+ 5) % Row 27 \SetRowColor{LightBackground} XOR \textless{}dest\textgreater{}, \textless{}source\textgreater{} & Bitwise XOR the value in \textless{}source\textgreater{} with the value in \textless{}dest\textgreater{}, storing the result in \textless{}dest\textgreater{}. \textless{}dest\textgreater{} may be reg or mem and \textless{}source\textgreater{} may be reg, mem or imm. \tn % Row Count 33 (+ 7) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{What does a Linker do?}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{– Merges multiple relocatable (.o) object files into a single executable object file that can loaded and executed by the loader.} \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{– As part of the merging process, resolves external references. • External reference: reference to a symbol defined in another object file.} \tn % Row Count 6 (+ 3) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{– Relocates symbols from their relative locations in the .o files to new absolute positions in the executable.} \tn % Row Count 9 (+ 3) % Row 3 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{– Updates all references to these symbols to reflect their new positions. • References can be in either code or data} \tn % Row Count 12 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.4977 cm} p{0.4977 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Memory Management}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{Info} \tn % Row Count 1 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}